ClinicalTrials.gg
Active, not recruitingNCT04539964RESET-RAUpdated Apr 14, 2026Results posted

Vagus Nerve Stimulation for Moderate to Severe Rheumatoid Arthritis

A Phase 3 interventional study of Implant Procedure and Conventional Synthetic DMARD in Rheumatoid Arthritis, sponsored by SetPoint Medical Corporation. Active, not recruiting at 42 sites in United States. Open to participants aged 22 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-04-14.

Sponsored by SetPoint Medical Corporation · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
243
Allocation
Randomized
Ages
22 Years to 75 Years
Sex
All
01

Study summary

The RESET-RA study will assess the safety and efficacy of the SetPoint System (study device) for the treatment of adult patients with active, moderate to severe rheumatoid arthritis who have had an inadequate response or intolerance to biologic or targeted synthetic Disease-Modifying Anti-Rheumatic Drugs (DMARDs). The study device contains a miniaturized stimulator (implant) that is surgically placed under general anesthesia on the vagus nerve through a small incision on the left side of the neck (implant procedure). The study will enroll up to 250 subjects at up to 45 sites. All eligible subjects will undergo the implant procedure. Half of the subjects will receive active stimulation (treatment) and the other half will receive non-active stimulation (control). After completing primary endpoint assessments at Week 12, there will be a one-way crossover of control subjects to active stimulation and a 252-week open-label follow-up with all subjects (treatment and control) receiving active stimulation to evaluate long-term safety.

Read the detailed description

The RESET-RA study is an operationally seamless, 2-stage, randomized, double-blind, sham-controlled, multicenter pivotal study enrolling up to 250 subjects at up to 45 study centers across the U.S. The study will assess the safety and efficacy of the SetPoint System (study device) for the treatment of adult patients with active, moderate to severe rheumatoid arthritis (RA) who have had an inadequate response, loss of response or intolerance to biologic or targeted synthetic Disease-Modifying Anti-Rheumatic Drugs (DMARDs). The study device contains a miniaturized stimulator (implant) that is surgically implanted inside the left side of the neck on the vagus nerve (implant procedure). The implant delivers a small amount of electricity (stimulation) to the nerve. All eligible subjects will undergo the surgery under general anesthesia. Half of the subjects will receive active stimulation (the treatment group) and the other half will receive non-active stimulation (the control group). Stimulation will be delivered for 1 min once per day for 12 weeks. After completing primary endpoint assessments at Week 12, there will be a one-way crossover of control subjects to active stimulation and a 252-week open-label follow-up with all subjects (treatment and control) receiving active stimulation to evaluate long-term safety. Blinding will be maintained until the last enrolled and randomized subject in Stage 2 completes Week 12 assessments, and the study database is locked.

02

Conditions studied

  • Rheumatoid Arthritis

Keywords

  • Rheumatoid Arthritis
  • Vagus nerve
  • vagus nerve stimulating device
  • drug refractory
  • permanent implantable
  • implant
03

In context

Arthritis, Rheumatoid

3,332 studies on the registry are indexed under Arthritis, Rheumatoid; 443 are open to participants now.

This study's enrollment of 243 is above the median of 96 across 2,220 interventional studies indexed under Arthritis, Rheumatoid.

Browse Arthritis, Rheumatoid studies →

Lead sponsor

SetPoint Medical Corporation is the lead sponsor of 9 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
22 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 22-75 years of age at screening
  • Active moderate or severe RA, defined as at least 4/28 tender and 4/28 swollen joints
  • Demonstrated an inadequate response, loss of response, or intolerance to 1 or more approved for rheumatoid arthritis biologic or targeted synthetic Disease-Modifying Anti-Rheumatic Drugs (DMARDs), including Janus kinase inhibitors (JAKi)
  • Receiving treatment with at least 1 conventional synthetic DMARD for at least 12 weeks and on a continuous non-changing dose and route of administration for at least 4 weeks prior to Screening and able to continue the same stable dose through Week 12

Exclusion criteria

Exclusion Criteria:

  • Untreated or poorly controlled psychiatric illness or history of substance abuse
  • Significant immunodeficiency due to underlying illness
  • History of stroke or , or diagnosis of cerebrovascular fibromuscular dysplasia
  • cardiovascular disease
  • Neurological syndromes, including multiple sclerosis, Alzheimer's disease, or Parkinson's disease
  • Uncontrolled fibromyalgia
  • History of left or right carotid surgery
  • History of unilateral or bilateral vagotomy, partial or complete splenectomy
  • Recurrent vasovagal syncope episodes
  • Current, regular use of tobacco products
  • /allergy to MRI contrast agents and/or unable to perform MRI
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

TIA (transient ischaemic attack)

A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.

Stroke symptoms need emergency care at once, even if they go away.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
243 participants (actual)

Study arms

  • Experimental
    Treatment

    Active stimulation for 1 min once per day

    Procedure: Implant Procedure · Drug: Conventional Synthetic DMARD · Device: Active stimulation

  • Sham comparator
    Control

    Non-active stimulation for 1 min once per day

    Procedure: Implant Procedure · Drug: Conventional Synthetic DMARD · Device: Non-active stimulation

Interventions

  • ProcedureImplant Procedure

    The SetPoint System (study device) contains a miniaturized stimulator (implant) that is surgically implanted inside the left side of the neck on the vagus nerve (implant procedure). All eligible subjects will undergo the surgery under general anesthesia in outpatient settings.

    Also known as: Surgical placement of vagus nerve stimulator inside the neck

  • DrugConventional Synthetic DMARD

    All subjects will continue to take at least one type of conventional synthetic DMARD at the same stable dose as for 4 weeks prior to consent

    Also known as: Background therapy with conventional synthetic DMARD

  • DeviceActive stimulation

    Active stimulation for 1 min once per day

  • DeviceNon-active stimulation

    Non-active stimulation for 1 min once per day

06

What researchers measure

Primary outcomes

  1. the American College of Rheumatology (ACR) 20 Response

    Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

    Time frame: Week 12

Secondary outcomes

  1. DAS28-CRP Good or Moderate Response as Defined by European League Against Rheumatism (EULAR)

    The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) good or moderate response as defined by EULAR based on a composite score of 4 items: tender and swollen joint counts of 28 joints (scale 0=best to 28=worst), subject global assessment (0=best to 10=worst) and high-sensitivity C-reactive protein (hsCRP) concentration (mg/L). A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96 A subject is considered having a moderate treatment response if: * DAS28-CRP score improvement from baseline to Week 12 is \> 0.6 and ≤ 1.2, and the DAS28-CRP score at Week 12 is ≤ 5.1; or * DAS28-CRP score improvement from baseline to Week 12 is \> 1.2, and the DAS28-CRP score at Week 12 is \> 3.2. A subject is considered having a good treatment response if: • DAS28-CRP score improvement from baseline to Week 12 is \> 1.2 and the DAS28-CRP score at Week 12 is ≤ 3.2

    Time frame: Week 12

  2. DAS28-CRP Response (MCID -1.2) at Week 12

    The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) response is based on the minimal clinically important difference (MCID) of -1.2 from baseline. DAS28-CRP is based on a composite score of 4 items: tender and swollen joint counts of 28 joints (scale 0=best to 28=worst), subject global assessment (0=best to 10=worst) and high-sensitivity C-reactive protein (hsCRP) concentration (mg/L). A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96

    Time frame: Week 12

  3. Health Assessment Questionnaire Disability Index (HAQ-DI) Response (MCID -0.22)

    HAQ-DI response based on the MCID of -0.22 from baseline. The HAQ-DI is a questionnaire validated for RA self-assessment by subjects that contains 20 questions in the following 8 functional areas: * Dressing and grooming * Arising * Eating * Walking * Hygiene * Reach * Grip * Common daily activities Scoring within each functional area is from 0 (without any difficulty) to 3 (unable to do). The total score is obtained by summing 8 area scores and dividing by 8. The total HAQ-DI score ranges from 0 to 3 and corresponds to the current degree of disability: * 0 to \< 1 Mild difficulties to moderate disability * 1 to \< 2 Moderate disability * 2 to 3 Severe to very severe disability

    Time frame: Week 12

  4. ACR20 Response at Week 12 From Day 0

    Response is defined as achieving at least 20% improvement from Day 0 to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worse), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/mL).

    Time frame: Week 12

Other outcomes

  1. Bone Erosion Progression, All Completers

    RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand. A total score for each pathology is generated by the summation of individual joint/bone scores as follows: * Synovitis: 8 joints each scored on a scale from 0 = normal to 3 = severe, resulting in a total score from 0 to 24. * Bone erosion: 25 bones each scored on a scale from 0 (0-10% eroded volume) to 10 (91-100% eroded volume), resulting in a total score from 0 to 250. * Osteitis: 25 bones scored on a scale from 0 (no osteitis) to 3 (68-100% of bone volume involved), resulting in a total score from 0 to 75. * CARLOS (cartilage loss): 25 joints each scored on a scale from 0 (no damage) to 4 (complete ankylosis or fusion), resulting in a total score from 0 to 100. The proportion of bone erosion progressors is the % subjects with an increase of \> 0.5 on the bone erosion score, comparing baseline to Week 12. An increase of \> 0.5 represents disease progression.

    Time frame: Week 12

  2. Bone Erosion Progression, All Completers With Erosive Phenotype

    RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand. A total score for each pathology is generated by the summation of individual joint/bone scores as follows: * Synovitis: 8 joints each scored on a scale from 0 = normal to 3 = severe, resulting in a total score from 0 to 24. * Bone erosion: 25 bones each scored on a scale from 0 (0-10% eroded volume) to 10 (91-100% eroded volume), resulting in a total score from 0 to 250. * Osteitis: 25 bones scored on a scale from 0 (no osteitis) to 3 (68-100% of bone volume involved), resulting in a total score from 0 to 75. * CARLOS (cartilage loss): 25 joints each scored on a scale from 0 (no damage) to 4 (complete ankylosis or fusion), resulting in a total score from 0 to 100. The proportion of bone erosion progressors is the % subjects with an increase of \> 0.5 on the bone erosion score, comparing baseline to Week 12. An increase of \> 0.5 represents disease progression.

    Time frame: Week 12

  3. Bone Erosion Progression, All Completers That Previously Only Failed 1 b/tsDMARD

    RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand. A total score for each pathology is generated by the summation of individual joint/bone scores as follows: * Synovitis: 8 joints each scored on a scale from 0 = normal to 3 = severe, resulting in a total score from 0 to 24. * Bone erosion: 25 bones each scored on a scale from 0 (0-10% eroded volume) to 10 (91-100% eroded volume), resulting in a total score from 0 to 250. * Osteitis: 25 bones scored on a scale from 0 (no osteitis) to 3 (68-100% of bone volume involved), resulting in a total score from 0 to 75. * CARLOS (cartilage loss): 25 joints each scored on a scale from 0 (no damage) to 4 (complete ankylosis or fusion), resulting in a total score from 0 to 100. The proportion of bone erosion progressors is the % subjects with an increase of \> 0.5 on the bone erosion score, comparing baseline to Week 12. An increase of \> 0.5 represents disease progression.

    Time frame: Week 12

  4. Change in Erosion Score, All Completers

    RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Bone erosion: 25 bones each scored on a scale from 0 (0-10% eroded volume) to 10 (91-100% eroded volume), resulting in a total score from 0 to 250.

    Time frame: Week 12

  5. Change in Erosion Score, All Completers With Erosive Phenotype

    RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Bone erosion: 25 bones each scored on a scale from 0 (0-10% eroded volume) to 10 (91-100% eroded volume), resulting in a total score from 0 to 250.

    Time frame: Week 12

  6. Change in Erosion Score, All Completers That Previously Only Failed 1 b/tsDMARD

    RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Bone erosion: 25 bones each scored on a scale from 0 (0-10% eroded volume) to 10 (91-100% eroded volume), resulting in a total score from 0 to 250.

    Time frame: Week 12

  7. Change in Synovitis Score, All Completers

    RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Synovitis: 8 joints each scored on a scale from 0 = normal to 3 = severe, resulting in a total score from 0 to 24.

    Time frame: Week 12

  8. Change in Synovitis Score, All Completers With Erosive Phenotype

    RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Synovitis: 8 joints each scored on a scale from 0 = normal to 3 = severe, resulting in a total score from 0 to 24.

    Time frame: Week 12

  9. Change in Synovitis Score, All Completers That Previously Only Failed 1 b/tsDMARD

    RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Synovitis: 8 joints each scored on a scale from 0 = normal to 3 = severe, resulting in a total score from 0 to 24.

    Time frame: Week 12

  10. Change in Osteitis Score, All Completers

    RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Osteitis: 25 bones scored on a scale from 0 (no osteitis) to 3 (68-100% of bone volume involved), resulting in a total score from 0 to 75.

    Time frame: Week 12

  11. Change in Osteitis Score, All Completers With Erosive Phenotype

    RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Osteitis: 25 bones scored on a scale from 0 (no osteitis) to 3 (68-100% of bone volume involved), resulting in a total score from 0 to 75.

    Time frame: Week 12

  12. Change in Osteitis Score, All Completers That Previously Only Failed 1 b/tsDMARD

    RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Osteitis: 25 bones scored on a scale from 0 (no osteitis) to 3 (68-100% of bone volume involved), resulting in a total score from 0 to 75.

    Time frame: Week 12

  13. Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission

    The CDAI score is based on 4 items: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * EGA, evaluator's global assessment (0=best to 10=worst) The CDAI score is calculated as follows and ranges from 0 to 76: • CDAI = TJC28 + SJC28 + SGA + EGA The CDAI score corresponds to the current RA activity: * 0 to ≤ 2.8 Remission * \>2.8 to ≤ 10 Low disease activity (LDA) * \>10 to ≤ 22 Moderate disease activity * \> 22 High disease activity

    Time frame: Week 12

  14. DAS28-CRP Low Disease Activity (LDA) or Remission

    The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) score is a composite index providing a measure of disease activity, comprising: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * hsCRP (mg/L), high sensitivity C-reactive protein concentration (mg/L) A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96 The DAS28-CRP score corresponds to the current RA activity: * 0 to \< 2.6 Remission * 2.6 to \< 3.2 LDA * 3.2 to ≤ 5.1 Moderate activity * \> 5.1 High activity

    Time frame: Week 12

  15. the American College of Rheumatology (ACR) 20 Response, All Completers

    Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

    Time frame: Week 24

  16. the American College of Rheumatology (ACR) 20 Response, Non-augmented

    Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

    Time frame: Week 24

  17. Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, All Completers

    The CDAI score is based on 4 items: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * EGA, evaluator's global assessment (0=best to 10=worst) The CDAI score is calculated as follows and ranges from 0 to 76: • CDAI = TJC28 + SJC28 + SGA + EGA The CDAI score corresponds to the current RA activity: * 0 to ≤ 2.8 Remission * \>2.8 to ≤ 10 Low disease activity (LDA) * \>10 to ≤ 22 Moderate disease activity * \> 22 High disease activity

    Time frame: Week 24

  18. Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, Non-augmented

    The CDAI score is based on 4 items: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * EGA, evaluator's global assessment (0=best to 10=worst) The CDAI score is calculated as follows and ranges from 0 to 76: • CDAI = TJC28 + SJC28 + SGA + EGA The CDAI score corresponds to the current RA activity: * 0 to ≤ 2.8 Remission * \>2.8 to ≤ 10 Low disease activity (LDA) * \>10 to ≤ 22 Moderate disease activity * \> 22 High disease activity

    Time frame: Week 24

  19. DAS28-CRP Low Disease Activity (LDA) or Remission, All Completers

    The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) score is a composite index providing a measure of disease activity, comprising: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * hsCRP (mg/L), high sensitivity C-reactive protein concentration (mg/L) A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96 The DAS28-CRP score corresponds to the current RA activity: * 0 to \< 2.6 Remission * 2.6 to \< 3.2 LDA * 3.2 to ≤ 5.1 Moderate activity * \> 5.1 High activity

    Time frame: Week 24

  20. DAS28-CRP Low Disease Activity (LDA) or Remission, Non-augmented

    The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) score is a composite index providing a measure of disease activity, comprising: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * hsCRP (mg/L), high sensitivity C-reactive protein concentration (mg/L) A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96 The DAS28-CRP score corresponds to the current RA activity: * 0 to \< 2.6 Remission * 2.6 to \< 3.2 LDA * 3.2 to ≤ 5.1 Moderate activity * \> 5.1 High activity

    Time frame: Week 24

  21. Health Assessment Questionnaire Disability Index (HAQ-DI) MCID Response, All Completers

    HAQ-DI response based on the MCID of -0.22 from baseline. The HAQ-DI is a questionnaire validated for RA self-assessment by subjects that contains 20 questions in the following 8 functional areas: * Dressing and grooming * Arising * Eating * Walking * Hygiene * Reach * Grip * Common daily activities Scoring within each functional area is from 0 (without any difficulty) to 3 (unable to do). The total score is obtained by summing 8 area scores and dividing by 8. The total HAQ-DI score ranges from 0 to 3 and corresponds to the current degree of disability: * 0 to \< 1 Mild difficulties to moderate disability * 1 to \< 2 Moderate disability * 2 to 3 Severe to very severe disability

    Time frame: Week 24

  22. Health Assessment Questionnaire Disability Index (HAQ-DI) Response (MCID -0.22), Non-augmented

    HAQ-DI response based on the MCID of -0.22 from baseline. The HAQ-DI is a questionnaire validated for RA self-assessment by subjects that contains 20 questions in the following 8 functional areas: * Dressing and grooming * Arising * Eating * Walking * Hygiene * Reach * Grip * Common daily activities Scoring within each functional area is from 0 (without any difficulty) to 3 (unable to do). The total score is obtained by summing 8 area scores and dividing by 8. The total HAQ-DI score ranges from 0 to 3 and corresponds to the current degree of disability: * 0 to \< 1 Mild difficulties to moderate disability * 1 to \< 2 Moderate disability * 2 to 3 Severe to very severe disability

    Time frame: Week 24

  23. Study Participants That Are Somewhat to Very Satisfied With the SetPoint System for Treatment of Rheumatoid Arthritis

    Patient satisfaction was assessed at Week 24 using five-point Likert rating scale: * I am very dissatisfied * I am somewhat dissatisfied * I am neither satisfied nor dissatisfied * I am somewhat satisfied * I am very satisfied

    Time frame: Week 24

  24. Study Participants That Are Neither Satisfied Nor Dissatisfied With the SetPoint System for Treatment of Rheumatoid Arthritis

    Patient satisfaction was assessed at Week 24 using five-point Likert rating scale: * I am very dissatisfied * I am somewhat dissatisfied * I am neither satisfied nor dissatisfied * I am somewhat satisfied * I am very satisfied

    Time frame: Week 24

  25. Study Participants That Are Somewhat to Very Dissatisfied With the SetPoint System for Treatment of Rheumatoid Arthritis

    Patient satisfaction was assessed at Week 24 using five-point Likert rating scale: * I am very dissatisfied * I am somewhat dissatisfied * I am neither satisfied nor dissatisfied * I am somewhat satisfied * I am very satisfied

    Time frame: Week 24

  26. Study Participants That Would Recommend the SetPoint System to a Family Member or Friend

    Patients were asked a question about whether they would recommend the SetPoint System to family and friends

    Time frame: Week 24

  27. the American College of Rheumatology (ACR) 20 Response, All Completers

    Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

    Time frame: Week 36

  28. the American College of Rheumatology (ACR) 20 Response, Non-augmented

    Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

    Time frame: Week 36

  29. Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, All Completers

    The CDAI score is based on 4 items: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * EGA, evaluator's global assessment (0=best to 10=worst) The CDAI score is calculated as follows and ranges from 0 to 76: • CDAI = TJC28 + SJC28 + SGA + EGA The CDAI score corresponds to the current RA activity: * 0 to ≤ 2.8 Remission * \>2.8 to ≤ 10 Low disease activity (LDA) * \>10 to ≤ 22 Moderate disease activity * \> 22 High disease activity

    Time frame: Week 36

  30. Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, Non-augmented

    The CDAI score is based on 4 items: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * EGA, evaluator's global assessment (0=best to 10=worst) The CDAI score is calculated as follows and ranges from 0 to 76: • CDAI = TJC28 + SJC28 + SGA + EGA The CDAI score corresponds to the current RA activity: * 0 to ≤ 2.8 Remission * \>2.8 to ≤ 10 Low disease activity (LDA) * \>10 to ≤ 22 Moderate disease activity * \> 22 High disease activity

    Time frame: Week 36

  31. DAS28-CRP Low Disease Activity (LDA) or Remission, All Completers

    The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) score is a composite index providing a measure of disease activity, comprising: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * hsCRP (mg/L), high sensitivity C-reactive protein concentration (mg/L) A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96 The DAS28-CRP score corresponds to the current RA activity: * 0 to \< 2.6 Remission * 2.6 to \< 3.2 LDA * 3.2 to ≤ 5.1 Moderate activity * \> 5.1 High activity

    Time frame: Week 36

  32. DAS28-CRP Low Disease Activity (LDA) or Remission, Non-augmented

    The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) score is a composite index providing a measure of disease activity, comprising: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * hsCRP (mg/L), high sensitivity C-reactive protein concentration (mg/L) A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96 The DAS28-CRP score corresponds to the current RA activity: * 0 to \< 2.6 Remission * 2.6 to \< 3.2 LDA * 3.2 to ≤ 5.1 Moderate activity * \> 5.1 High activity

    Time frame: Week 36

  33. Health Assessment Questionnaire Disability Index (HAQ-DI) MCID Response, All Completers

    HAQ-DI response based on the MCID of -0.22 from baseline. The HAQ-DI is a questionnaire validated for RA self-assessment by subjects that contains 20 questions in the following 8 functional areas: * Dressing and grooming * Arising * Eating * Walking * Hygiene * Reach * Grip * Common daily activities Scoring within each functional area is from 0 (without any difficulty) to 3 (unable to do). The total score is obtained by summing 8 area scores and dividing by 8. The total HAQ-DI score ranges from 0 to 3 and corresponds to the current degree of disability: * 0 to \< 1 Mild difficulties to moderate disability * 1 to \< 2 Moderate disability * 2 to 3 Severe to very severe disability

    Time frame: Week 36

  34. Health Assessment Questionnaire Disability Index (HAQ-DI) Response (MCID -0.22), Non-augmented

    HAQ-DI response based on the MCID of -0.22 from baseline. The HAQ-DI is a questionnaire validated for RA self-assessment by subjects that contains 20 questions in the following 8 functional areas: * Dressing and grooming * Arising * Eating * Walking * Hygiene * Reach * Grip * Common daily activities Scoring within each functional area is from 0 (without any difficulty) to 3 (unable to do). The total score is obtained by summing 8 area scores and dividing by 8. The total HAQ-DI score ranges from 0 to 3 and corresponds to the current degree of disability: * 0 to \< 1 Mild difficulties to moderate disability * 1 to \< 2 Moderate disability * 2 to 3 Severe to very severe disability

    Time frame: Week 36

  35. the American College of Rheumatology (ACR) 20 Response, All Completers

    Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

    Time frame: Week 48

  36. the American College of Rheumatology (ACR) 20 Response, Non-augmented

    Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

    Time frame: Week 48

  37. Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, All Completers

    The CDAI score is based on 4 items: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * EGA, evaluator's global assessment (0=best to 10=worst) The CDAI score is calculated as follows and ranges from 0 to 76: • CDAI = TJC28 + SJC28 + SGA + EGA The CDAI score corresponds to the current RA activity: * 0 to ≤ 2.8 Remission * \>2.8 to ≤ 10 Low disease activity (LDA) * \>10 to ≤ 22 Moderate disease activity * \> 22 High disease activity

    Time frame: Week 48

  38. Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, Non-augmented

    The CDAI score is based on 4 items: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * EGA, evaluator's global assessment (0=best to 10=worst) The CDAI score is calculated as follows and ranges from 0 to 76: • CDAI = TJC28 + SJC28 + SGA + EGA The CDAI score corresponds to the current RA activity: * 0 to ≤ 2.8 Remission * \>2.8 to ≤ 10 Low disease activity (LDA) * \>10 to ≤ 22 Moderate disease activity * \> 22 High disease activity

    Time frame: Week 48

  39. DAS28-CRP Low Disease Activity (LDA) or Remission, All Completers

    The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) score is a composite index providing a measure of disease activity, comprising: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * hsCRP (mg/L), high sensitivity C-reactive protein concentration (mg/L) A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96 The DAS28-CRP score corresponds to the current RA activity: * 0 to \< 2.6 Remission * 2.6 to \< 3.2 LDA * 3.2 to ≤ 5.1 Moderate activity * \> 5.1 High activity

    Time frame: Week 48

  40. DAS28-CRP Low Disease Activity (LDA) or Remission, Non-augmented

    The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) score is a composite index providing a measure of disease activity, comprising: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * hsCRP (mg/L), high sensitivity C-reactive protein concentration (mg/L) A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96 The DAS28-CRP score corresponds to the current RA activity: * 0 to \< 2.6 Remission * 2.6 to \< 3.2 LDA * 3.2 to ≤ 5.1 Moderate activity * \> 5.1 High activity

    Time frame: Week 48

  41. Health Assessment Questionnaire Disability Index (HAQ-DI) MCID Response, All Completers

    HAQ-DI response based on the MCID of -0.22 from baseline. The HAQ-DI is a questionnaire validated for RA self-assessment by subjects that contains 20 questions in the following 8 functional areas: * Dressing and grooming * Arising * Eating * Walking * Hygiene * Reach * Grip * Common daily activities Scoring within each functional area is from 0 (without any difficulty) to 3 (unable to do). The total score is obtained by summing 8 area scores and dividing by 8. The total HAQ-DI score ranges from 0 to 3 and corresponds to the current degree of disability: * 0 to \< 1 Mild difficulties to moderate disability * 1 to \< 2 Moderate disability * 2 to 3 Severe to very severe disability

    Time frame: Week 48

  42. Health Assessment Questionnaire Disability Index (HAQ-DI) Response (MCID -0.22), Non-augmented

    HAQ-DI response based on the MCID of -0.22 from baseline. The HAQ-DI is a questionnaire validated for RA self-assessment by subjects that contains 20 questions in the following 8 functional areas: * Dressing and grooming * Arising * Eating * Walking * Hygiene * Reach * Grip * Common daily activities Scoring within each functional area is from 0 (without any difficulty) to 3 (unable to do). The total score is obtained by summing 8 area scores and dividing by 8. The total HAQ-DI score ranges from 0 to 3 and corresponds to the current degree of disability: * 0 to \< 1 Mild difficulties to moderate disability * 1 to \< 2 Moderate disability * 2 to 3 Severe to very severe disability

    Time frame: Week 48

  43. the American College of Rheumatology (ACR) 20 Response, Subjects With 1 Prior b/tsDMARD

    Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

    Time frame: Week 12

  44. the American College of Rheumatology (ACR) 20 Response, Subjects With 2 Prior b/tsDMARD

    Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

    Time frame: Week 12

  45. the American College of Rheumatology (ACR) 20 Response, Subjects With 3 Prior b/tsDMARD

    Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

    Time frame: Week 12

  46. the American College of Rheumatology (ACR) 20 Response, Subjects With >=4 Prior b/tsDMARD

    Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

    Time frame: Week 12

07

Results

Posted Dec 19, 2025
Limitations and caveats
A possible limitation was a 3-month controlled phase, which did not capture peak therapeutic response, known to evolve over longer periods for some patients based on prior experience with vagus nerve stimulation. This is likely influenced by modulation of innate neuroimmune pathways vs. inhibition of discrete inflammatory pathways, the mechanism of most pharmaceutical interventions. Nevertheless, consistency of outcomes across multiple visits thru Wk 48 supports durability of treatment effect.

Participant flow

Participant flow — Overall Study
MilestoneTreatmentControl
Started122120
Week 12 (primary endpoint)122120
Week 24119117
Week 36119115
Week 48119114
Completed120116
Not completed24
Withdrew: Device malfunction10
Withdrew: Withdrawal by subject12
Withdrew: Adverse event02

Outcome measures

Primarythe American College of Rheumatology (ACR) 20 Response

Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

Time frame:
Week 12
Reported as:
Count of participants · Participants
the American College of Rheumatology (ACR) 20 Response
ParticipantsTreatmentControl
the American College of Rheumatology (ACR) 20 Response4329
Statistical analysis
  • Treatment vs Control · Cochran-Mantel-Haenszel · p = 0.0209 (The study is considered successful if there is a statistically significant improvement in the proportion of subjects with ACR20 response in favor of the SetPoint System at the one-sided alpha of 0.025.) · Risk difference (rd): 11.8 · 95% CI 0.6 to 23.1
SecondaryDAS28-CRP Good or Moderate Response as Defined by European League Against Rheumatism (EULAR)

The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) good or moderate response as defined by EULAR based on a composite score of 4 items: tender and swollen joint counts of 28 joints (scale 0=best to 28=worst), subject global assessment (0=best to 10=worst) and high-sensitivity C-reactive protein (hsCRP) concentration (mg/L). A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96 A subject is considered having a moderate treatment response if: * DAS28-CRP score improvement from baseline to Week 12 is \> 0.6 and ≤ 1.2, and the DAS28-CRP score at Week 12 is ≤ 5.1; or * DAS28-CRP score improvement from baseline to Week 12 is \> 1.2, and the DAS28-CRP score at Week 12 is \> 3.2. A subject is considered having a good treatment response if: • DAS28-CRP score improvement from baseline to Week 12 is \> 1.2 and the DAS28-CRP score at Week 12 is ≤ 3.2

Time frame:
Week 12
Reported as:
Count of participants · Participants
DAS28-CRP Good or Moderate Response as Defined by European League Against Rheumatism (EULAR)
ParticipantsTreatmentControl
DAS28-CRP Good or Moderate Response as Defined by European League Against Rheumatism (EULAR)7450
Statistical analysis
  • Treatment vs Control · Cochran-Mantel-Haenszel · p = 0.0048 (Adjusted p-value. Hochberg's step-up procedure was used to control the family wise type 1 error rate at a 1-sided significance level of 0.025.) · Risk difference (rd): 19.5 · 95% CI 7.3 to 31.7
SecondaryDAS28-CRP Response (MCID -1.2) at Week 12

The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) response is based on the minimal clinically important difference (MCID) of -1.2 from baseline. DAS28-CRP is based on a composite score of 4 items: tender and swollen joint counts of 28 joints (scale 0=best to 28=worst), subject global assessment (0=best to 10=worst) and high-sensitivity C-reactive protein (hsCRP) concentration (mg/L). A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96

Time frame:
Week 12
Reported as:
Count of participants · Participants
DAS28-CRP Response (MCID -1.2) at Week 12
ParticipantsTreatmentControl
DAS28-CRP Response (MCID -1.2) at Week 125539
Statistical analysis
  • Treatment vs Control · Cochran-Mantel-Haenszel · p = 0.0528 (Adjusted p-value. Hochberg's step-up procedure was used to control the family wise type 1 error rate at a 1-sided significance level of 0.025.) · Risk difference (rd): 13.2 · 95% CI 1.1 to 25.3
SecondaryHealth Assessment Questionnaire Disability Index (HAQ-DI) Response (MCID -0.22)

HAQ-DI response based on the MCID of -0.22 from baseline. The HAQ-DI is a questionnaire validated for RA self-assessment by subjects that contains 20 questions in the following 8 functional areas: * Dressing and grooming * Arising * Eating * Walking * Hygiene * Reach * Grip * Common daily activities Scoring within each functional area is from 0 (without any difficulty) to 3 (unable to do). The total score is obtained by summing 8 area scores and dividing by 8. The total HAQ-DI score ranges from 0 to 3 and corresponds to the current degree of disability: * 0 to \< 1 Mild difficulties to moderate disability * 1 to \< 2 Moderate disability * 2 to 3 Severe to very severe disability

Time frame:
Week 12
Reported as:
Count of participants · Participants
Health Assessment Questionnaire Disability Index (HAQ-DI) Response (MCID -0.22)
ParticipantsTreatmentControl
Health Assessment Questionnaire Disability Index (HAQ-DI) Response (MCID -0.22)5644
Statistical analysis
  • Treatment vs Control · Cochran-Mantel-Haenszel · p = 0.0797 (Adjusted p-value. Hochberg's step-up procedure was used to control the family wise type 1 error rate at a 1-sided significance level of 0.025.) · Risk difference (rd): 9.0 · 95% CI -3.3 to 21.4
SecondaryACR20 Response at Week 12 From Day 0

Response is defined as achieving at least 20% improvement from Day 0 to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worse), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/mL).

Time frame:
Week 12
Reported as:
Count of participants · Participants
ACR20 Response at Week 12 From Day 0
ParticipantsTreatmentControl
ACR20 Response at Week 12 From Day 03827
Statistical analysis
  • Treatment vs Control · Cochran-Mantel-Haenszel · p = 0.0797 (Adjusted p-value. Hochberg's step-up procedure was used to control the family wise type 1 error rate at a 1-sided significance level of 0.025.) · Risk difference (rd): 8.0 · 95% CI -3.1 to 19.0
Other pre-specifiedBone Erosion Progression, All Completers

RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand. A total score for each pathology is generated by the summation of individual joint/bone scores as follows: * Synovitis: 8 joints each scored on a scale from 0 = normal to 3 = severe, resulting in a total score from 0 to 24. * Bone erosion: 25 bones each scored on a scale from 0 (0-10% eroded volume) to 10 (91-100% eroded volume), resulting in a total score from 0 to 250. * Osteitis: 25 bones scored on a scale from 0 (no osteitis) to 3 (68-100% of bone volume involved), resulting in a total score from 0 to 75. * CARLOS (cartilage loss): 25 joints each scored on a scale from 0 (no damage) to 4 (complete ankylosis or fusion), resulting in a total score from 0 to 100. The proportion of bone erosion progressors is the % subjects with an increase of \> 0.5 on the bone erosion score, comparing baseline to Week 12. An increase of \> 0.5 represents disease progression.

Time frame:
Week 12
Reported as:
Count of participants · Participants
Bone Erosion Progression, All Completers
ParticipantsTreatmentControl
Bone Erosion Progression, All Completers1821
Statistical analysis
  • Treatment vs Control · Cochran-Mantel-Haenszel · p = 0.2476 · Risk difference (rd): -3.7 · 95% CI -14.4 to 7.0
Other pre-specifiedBone Erosion Progression, All Completers With Erosive Phenotype

RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand. A total score for each pathology is generated by the summation of individual joint/bone scores as follows: * Synovitis: 8 joints each scored on a scale from 0 = normal to 3 = severe, resulting in a total score from 0 to 24. * Bone erosion: 25 bones each scored on a scale from 0 (0-10% eroded volume) to 10 (91-100% eroded volume), resulting in a total score from 0 to 250. * Osteitis: 25 bones scored on a scale from 0 (no osteitis) to 3 (68-100% of bone volume involved), resulting in a total score from 0 to 75. * CARLOS (cartilage loss): 25 joints each scored on a scale from 0 (no damage) to 4 (complete ankylosis or fusion), resulting in a total score from 0 to 100. The proportion of bone erosion progressors is the % subjects with an increase of \> 0.5 on the bone erosion score, comparing baseline to Week 12. An increase of \> 0.5 represents disease progression.

Time frame:
Week 12
Reported as:
Count of participants · Participants
Bone Erosion Progression, All Completers With Erosive Phenotype
ParticipantsTreatment, Erosive PhenotypeControl, Erosive Phenotype
Bone Erosion Progression, All Completers With Erosive Phenotype1017
Statistical analysis
  • Treatment, Erosive Phenotype vs Control, Erosive Phenotype · Cochran-Mantel-Haenszel · p = 0.0156 · Risk difference (rd): -20.2 · 95% CI -38.1 to -2.2
Other pre-specifiedBone Erosion Progression, All Completers That Previously Only Failed 1 b/tsDMARD

RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand. A total score for each pathology is generated by the summation of individual joint/bone scores as follows: * Synovitis: 8 joints each scored on a scale from 0 = normal to 3 = severe, resulting in a total score from 0 to 24. * Bone erosion: 25 bones each scored on a scale from 0 (0-10% eroded volume) to 10 (91-100% eroded volume), resulting in a total score from 0 to 250. * Osteitis: 25 bones scored on a scale from 0 (no osteitis) to 3 (68-100% of bone volume involved), resulting in a total score from 0 to 75. * CARLOS (cartilage loss): 25 joints each scored on a scale from 0 (no damage) to 4 (complete ankylosis or fusion), resulting in a total score from 0 to 100. The proportion of bone erosion progressors is the % subjects with an increase of \> 0.5 on the bone erosion score, comparing baseline to Week 12. An increase of \> 0.5 represents disease progression.

Time frame:
Week 12
Reported as:
Count of participants · Participants
Bone Erosion Progression, All Completers That Previously Only Failed 1 b/tsDMARD
ParticipantsTreatment, 1 Prior b/tsDMARDControl, 1 Prior b/tsDMARD
Bone Erosion Progression, All Completers That Previously Only Failed 1 b/tsDMARD39
Statistical analysis
  • Treatment, 1 Prior b/tsDMARD vs Control, 1 Prior b/tsDMARD · Cochran-Mantel-Haenszel · p = 0.0099 · Risk difference (rd): -18.6 · 95% CI -34.7 to -2.6
Other pre-specifiedChange in Erosion Score, All Completers

RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Bone erosion: 25 bones each scored on a scale from 0 (0-10% eroded volume) to 10 (91-100% eroded volume), resulting in a total score from 0 to 250.

Time frame:
Week 12
Reported as:
Mean · score on a scale
Change in Erosion Score, All Completers
score on a scaleTreatmentControl
Change in Erosion Score, All Completers0.2 ± 0.850.5 ± 1.74
Statistical analysis
  • Treatment vs Control · Mixed Models Analysis · p = 0.0618 · Mean difference (net): -0.3 · 95% CI -0.8 to 0.1
Other pre-specifiedChange in Erosion Score, All Completers With Erosive Phenotype

RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Bone erosion: 25 bones each scored on a scale from 0 (0-10% eroded volume) to 10 (91-100% eroded volume), resulting in a total score from 0 to 250.

Time frame:
Week 12
Reported as:
Mean · score on a scale
Change in Erosion Score, All Completers With Erosive Phenotype
score on a scaleTreatment, Erosive PhenotypeControl, Erosive Phenotype
Change in Erosion Score, All Completers With Erosive Phenotype0.3 ± 1.091.1 ± 2.51
Statistical analysis
  • Treatment, Erosive Phenotype vs Control, Erosive Phenotype · Mixed Models Analysis · p = 0.0308 · Mean difference (net): -0.9 · 95% CI -1.8 to 0.0
Other pre-specifiedChange in Erosion Score, All Completers That Previously Only Failed 1 b/tsDMARD

RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Bone erosion: 25 bones each scored on a scale from 0 (0-10% eroded volume) to 10 (91-100% eroded volume), resulting in a total score from 0 to 250.

Time frame:
Week 12
Reported as:
Mean · score on a scale
Change in Erosion Score, All Completers That Previously Only Failed 1 b/tsDMARD
score on a scaleTreatment, 1 Prior b/tsDMARDControl, 1 Prior b/tsDMARD
Change in Erosion Score, All Completers That Previously Only Failed 1 b/tsDMARD0.0 ± 0.600.8 ± 2.57
Statistical analysis
  • Treatment, 1 Prior b/tsDMARD vs Control, 1 Prior b/tsDMARD · Mixed Models Analysis · p = 0.0441 · Mean difference (net): -0.8 · 95% CI -1.7 to 0.1
Other pre-specifiedChange in Synovitis Score, All Completers

RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Synovitis: 8 joints each scored on a scale from 0 = normal to 3 = severe, resulting in a total score from 0 to 24.

Time frame:
Week 12
Reported as:
Mean · score on a scale
Change in Synovitis Score, All Completers
score on a scaleTreatmentControl
Change in Synovitis Score, All Completers0.0 ± 1.640.1 ± 1.51
Statistical analysis
  • Treatment vs Control · Mixed Models Analysis · p = 0.2871 · Mean difference (net): -0.1 · 95% CI -0.6 to 0.3
Other pre-specifiedChange in Synovitis Score, All Completers With Erosive Phenotype

RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Synovitis: 8 joints each scored on a scale from 0 = normal to 3 = severe, resulting in a total score from 0 to 24.

Time frame:
Week 12
Reported as:
Mean · score on a scale
Change in Synovitis Score, All Completers With Erosive Phenotype
score on a scaleTreatment, Erosive PhenotypeControl, Erosive Phenotype
Change in Synovitis Score, All Completers With Erosive Phenotype-0.1 ± 2.270.0 ± 1.77
Statistical analysis
  • Treatment, Erosive Phenotype vs Control, Erosive Phenotype · Mixed Models Analysis · p = 0.4345 · Mean difference (net): -0.1 · 95% CI -0.9 to 0.7
Other pre-specifiedChange in Synovitis Score, All Completers That Previously Only Failed 1 b/tsDMARD

RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Synovitis: 8 joints each scored on a scale from 0 = normal to 3 = severe, resulting in a total score from 0 to 24.

Time frame:
Week 12
Reported as:
Mean · score on a scale
Change in Synovitis Score, All Completers That Previously Only Failed 1 b/tsDMARD
score on a scaleTreatment, 1 Prior b/tsDMARDControl, 1 Prior b/tsDMARD
Change in Synovitis Score, All Completers That Previously Only Failed 1 b/tsDMARD0.1 ± 0.810.6 ± 1.78
Statistical analysis
  • Treatment, 1 Prior b/tsDMARD vs Control, 1 Prior b/tsDMARD · Mixed Models Analysis · p = 0.0900 · Mean difference (net): -0.45 · 95% CI -1.1 to 0.2
Other pre-specifiedChange in Osteitis Score, All Completers

RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Osteitis: 25 bones scored on a scale from 0 (no osteitis) to 3 (68-100% of bone volume involved), resulting in a total score from 0 to 75.

Time frame:
Week 12
Reported as:
Mean · score on a scale
Change in Osteitis Score, All Completers
score on a scaleTreatmentControl
Change in Osteitis Score, All Completers0.1 ± 2.610.8 ± 4.13
Statistical analysis
  • Treatment vs Control · Mixed Models Analysis · p = 0.0662 · Mean difference (net): -0.7 · 95% CI -1.7 to 0.2
Other pre-specifiedChange in Osteitis Score, All Completers With Erosive Phenotype

RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Osteitis: 25 bones scored on a scale from 0 (no osteitis) to 3 (68-100% of bone volume involved), resulting in a total score from 0 to 75.

Time frame:
Week 12
Reported as:
Mean · score on a scale
Change in Osteitis Score, All Completers With Erosive Phenotype
score on a scaleTreatment, Erosive PhenotypeControl, Erosive Phenotype
Change in Osteitis Score, All Completers With Erosive Phenotype0.2 ± 3.741.8 ± 6.18
Statistical analysis
  • Treatment, Erosive Phenotype · Mixed Models Analysis · p = 0.0450 · Mean difference (net): -1.8 · 95% CI -3.9 to 0.3
Other pre-specifiedChange in Osteitis Score, All Completers That Previously Only Failed 1 b/tsDMARD

RAMRIS is a standardized system for RA MRI scoring of 4 different types of joint pathologies in the wrist and the hand (synovitis, bone erosion, osteitis, and cartilage loss). A total score for each pathology is generated by the summation of individual joint/bone scores: • Osteitis: 25 bones scored on a scale from 0 (no osteitis) to 3 (68-100% of bone volume involved), resulting in a total score from 0 to 75.

Time frame:
Week 12
Reported as:
Mean · score on a scale
Change in Osteitis Score, All Completers That Previously Only Failed 1 b/tsDMARD
score on a scaleTreatment, 1 Prior b/tsDMARDControl, 1 Prior b/tsDMARD
Change in Osteitis Score, All Completers That Previously Only Failed 1 b/tsDMARD-0.3 ± 2.221.1 ± 4.92
Statistical analysis
  • Treatment, 1 Prior b/tsDMARD vs Control, 1 Prior b/tsDMARD · Mixed Models Analysis · p = 0.0350 · Mean difference (net): -1.55 · 95% CI -3.2 to 0.1
Other pre-specifiedClinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission

The CDAI score is based on 4 items: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * EGA, evaluator's global assessment (0=best to 10=worst) The CDAI score is calculated as follows and ranges from 0 to 76: • CDAI = TJC28 + SJC28 + SGA + EGA The CDAI score corresponds to the current RA activity: * 0 to ≤ 2.8 Remission * \>2.8 to ≤ 10 Low disease activity (LDA) * \>10 to ≤ 22 Moderate disease activity * \> 22 High disease activity

Time frame:
Week 12
Reported as:
Count of participants · Participants
Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission
ParticipantsTreatmentControl
Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission2819
Statistical analysis
  • Treatment vs Control · Cochran-Mantel-Haenszel · p = 0.0648 · Risk difference (rd): 7.8 · 95% CI -2.1 to 17.7
Other pre-specifiedDAS28-CRP Low Disease Activity (LDA) or Remission

The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) score is a composite index providing a measure of disease activity, comprising: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * hsCRP (mg/L), high sensitivity C-reactive protein concentration (mg/L) A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96 The DAS28-CRP score corresponds to the current RA activity: * 0 to \< 2.6 Remission * 2.6 to \< 3.2 LDA * 3.2 to ≤ 5.1 Moderate activity * \> 5.1 High activity

Time frame:
Week 12
Reported as:
Count of participants · Participants
DAS28-CRP Low Disease Activity (LDA) or Remission
ParticipantsTreatmentControl
DAS28-CRP Low Disease Activity (LDA) or Remission3118
Statistical analysis
  • Treatment vs Control · Cochran-Mantel-Haenszel · p = 0.0154 · Risk difference (rd): 11.4 · 95% CI 1.2 to 21.6
Other pre-specifiedthe American College of Rheumatology (ACR) 20 Response, All Completers

Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

Time frame:
Week 24
Reported as:
Count of participants · Participants
the American College of Rheumatology (ACR) 20 Response, All Completers
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
the American College of Rheumatology (ACR) 20 Response, All Completers5365118
Other pre-specifiedthe American College of Rheumatology (ACR) 20 Response, Non-augmented

Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

Time frame:
Week 24
Reported as:
Count of participants · Participants
the American College of Rheumatology (ACR) 20 Response, Non-augmented
ParticipantsTreatment to Open Label (TOL), Non-augmentedControl to Open Label (COL), Non-augmentedAll (TOL Non-augmented+COL Non Augmented)
the American College of Rheumatology (ACR) 20 Response, Non-augmented5052102
Other pre-specifiedClinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, All Completers

The CDAI score is based on 4 items: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * EGA, evaluator's global assessment (0=best to 10=worst) The CDAI score is calculated as follows and ranges from 0 to 76: • CDAI = TJC28 + SJC28 + SGA + EGA The CDAI score corresponds to the current RA activity: * 0 to ≤ 2.8 Remission * \>2.8 to ≤ 10 Low disease activity (LDA) * \>10 to ≤ 22 Moderate disease activity * \> 22 High disease activity

Time frame:
Week 24
Reported as:
Count of participants · Participants
Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, All Completers
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, All Completers333669
Other pre-specifiedClinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, Non-augmented

The CDAI score is based on 4 items: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * EGA, evaluator's global assessment (0=best to 10=worst) The CDAI score is calculated as follows and ranges from 0 to 76: • CDAI = TJC28 + SJC28 + SGA + EGA The CDAI score corresponds to the current RA activity: * 0 to ≤ 2.8 Remission * \>2.8 to ≤ 10 Low disease activity (LDA) * \>10 to ≤ 22 Moderate disease activity * \> 22 High disease activity

Time frame:
Week 24
Reported as:
Count of participants · Participants
Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, Non-augmented
ParticipantsTreatment to Open Label (TOL), Non-augmentedControl to Open Label (COL), Non-augmentedAll (TOL Non-augmented+COL Non Augmented)
Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, Non-augmented333164
Other pre-specifiedDAS28-CRP Low Disease Activity (LDA) or Remission, All Completers

The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) score is a composite index providing a measure of disease activity, comprising: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * hsCRP (mg/L), high sensitivity C-reactive protein concentration (mg/L) A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96 The DAS28-CRP score corresponds to the current RA activity: * 0 to \< 2.6 Remission * 2.6 to \< 3.2 LDA * 3.2 to ≤ 5.1 Moderate activity * \> 5.1 High activity

Time frame:
Week 24
Reported as:
Count of participants · Participants
DAS28-CRP Low Disease Activity (LDA) or Remission, All Completers
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
DAS28-CRP Low Disease Activity (LDA) or Remission, All Completers363773
Other pre-specifiedDAS28-CRP Low Disease Activity (LDA) or Remission, Non-augmented

The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) score is a composite index providing a measure of disease activity, comprising: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * hsCRP (mg/L), high sensitivity C-reactive protein concentration (mg/L) A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96 The DAS28-CRP score corresponds to the current RA activity: * 0 to \< 2.6 Remission * 2.6 to \< 3.2 LDA * 3.2 to ≤ 5.1 Moderate activity * \> 5.1 High activity

Time frame:
Week 24
Reported as:
Count of participants · Participants
DAS28-CRP Low Disease Activity (LDA) or Remission, Non-augmented
ParticipantsTreatment to Open Label (TOL), Non-augmentedControl to Open Label (COL), Non-augmentedAll (TOL Non-augmented+COL Non Augmented)
DAS28-CRP Low Disease Activity (LDA) or Remission, Non-augmented353267
Other pre-specifiedHealth Assessment Questionnaire Disability Index (HAQ-DI) MCID Response, All Completers

HAQ-DI response based on the MCID of -0.22 from baseline. The HAQ-DI is a questionnaire validated for RA self-assessment by subjects that contains 20 questions in the following 8 functional areas: * Dressing and grooming * Arising * Eating * Walking * Hygiene * Reach * Grip * Common daily activities Scoring within each functional area is from 0 (without any difficulty) to 3 (unable to do). The total score is obtained by summing 8 area scores and dividing by 8. The total HAQ-DI score ranges from 0 to 3 and corresponds to the current degree of disability: * 0 to \< 1 Mild difficulties to moderate disability * 1 to \< 2 Moderate disability * 2 to 3 Severe to very severe disability

Time frame:
Week 24
Reported as:
Count of participants · Participants
Health Assessment Questionnaire Disability Index (HAQ-DI) MCID Response, All Completers
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Health Assessment Questionnaire Disability Index (HAQ-DI) MCID Response, All Completers6472136
Other pre-specifiedHealth Assessment Questionnaire Disability Index (HAQ-DI) Response (MCID -0.22), Non-augmented

HAQ-DI response based on the MCID of -0.22 from baseline. The HAQ-DI is a questionnaire validated for RA self-assessment by subjects that contains 20 questions in the following 8 functional areas: * Dressing and grooming * Arising * Eating * Walking * Hygiene * Reach * Grip * Common daily activities Scoring within each functional area is from 0 (without any difficulty) to 3 (unable to do). The total score is obtained by summing 8 area scores and dividing by 8. The total HAQ-DI score ranges from 0 to 3 and corresponds to the current degree of disability: * 0 to \< 1 Mild difficulties to moderate disability * 1 to \< 2 Moderate disability * 2 to 3 Severe to very severe disability

Time frame:
Week 24
Reported as:
Count of participants · Participants
Health Assessment Questionnaire Disability Index (HAQ-DI) Response (MCID -0.22), Non-augmented
ParticipantsTreatment to Open Label (TOL), Non-augmentedControl to Open Label (COL), Non-augmentedAll (TOL Non-augmented+COL Non Augmented)
Health Assessment Questionnaire Disability Index (HAQ-DI) Response (MCID -0.22), Non-augmented5662118
Other pre-specifiedStudy Participants That Are Somewhat to Very Satisfied With the SetPoint System for Treatment of Rheumatoid Arthritis

Patient satisfaction was assessed at Week 24 using five-point Likert rating scale: * I am very dissatisfied * I am somewhat dissatisfied * I am neither satisfied nor dissatisfied * I am somewhat satisfied * I am very satisfied

Time frame:
Week 24
Reported as:
Count of participants · Participants
Study Participants That Are Somewhat to Very Satisfied With the SetPoint System for Treatment of Rheumatoid Arthritis
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Study Participants That Are Somewhat to Very Satisfied With the SetPoint System for Treatment of Rheumatoid Arthritis9092182
Other pre-specifiedStudy Participants That Are Neither Satisfied Nor Dissatisfied With the SetPoint System for Treatment of Rheumatoid Arthritis

Patient satisfaction was assessed at Week 24 using five-point Likert rating scale: * I am very dissatisfied * I am somewhat dissatisfied * I am neither satisfied nor dissatisfied * I am somewhat satisfied * I am very satisfied

Time frame:
Week 24
Reported as:
Count of participants · Participants
Study Participants That Are Neither Satisfied Nor Dissatisfied With the SetPoint System for Treatment of Rheumatoid Arthritis
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Study Participants That Are Neither Satisfied Nor Dissatisfied With the SetPoint System for Treatment of Rheumatoid Arthritis141226
Other pre-specifiedStudy Participants That Are Somewhat to Very Dissatisfied With the SetPoint System for Treatment of Rheumatoid Arthritis

Patient satisfaction was assessed at Week 24 using five-point Likert rating scale: * I am very dissatisfied * I am somewhat dissatisfied * I am neither satisfied nor dissatisfied * I am somewhat satisfied * I am very satisfied

Time frame:
Week 24
Reported as:
Count of participants · Participants
Study Participants That Are Somewhat to Very Dissatisfied With the SetPoint System for Treatment of Rheumatoid Arthritis
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Study Participants That Are Somewhat to Very Dissatisfied With the SetPoint System for Treatment of Rheumatoid Arthritis151025
Other pre-specifiedStudy Participants That Would Recommend the SetPoint System to a Family Member or Friend

Patients were asked a question about whether they would recommend the SetPoint System to family and friends

Time frame:
Week 24
Reported as:
Count of participants · Participants
Study Participants That Would Recommend the SetPoint System to a Family Member or Friend
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Study Participants That Would Recommend the SetPoint System to a Family Member or Friend108110218
Other pre-specifiedthe American College of Rheumatology (ACR) 20 Response, All Completers

Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

Time frame:
Week 36
Reported as:
Count of participants · Participants
the American College of Rheumatology (ACR) 20 Response, All Completers
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
the American College of Rheumatology (ACR) 20 Response, All Completers5764121
Other pre-specifiedthe American College of Rheumatology (ACR) 20 Response, Non-augmented

Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

Time frame:
Week 36
Reported as:
Count of participants · Participants
the American College of Rheumatology (ACR) 20 Response, Non-augmented
ParticipantsTreatment to Open Label (TOL), Non-augmentedControl to Open Label (COL), Non-augmentedAll (TOL Non-augmented+COL Non Augmented)
the American College of Rheumatology (ACR) 20 Response, Non-augmented4654100
Other pre-specifiedClinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, All Completers

The CDAI score is based on 4 items: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * EGA, evaluator's global assessment (0=best to 10=worst) The CDAI score is calculated as follows and ranges from 0 to 76: • CDAI = TJC28 + SJC28 + SGA + EGA The CDAI score corresponds to the current RA activity: * 0 to ≤ 2.8 Remission * \>2.8 to ≤ 10 Low disease activity (LDA) * \>10 to ≤ 22 Moderate disease activity * \> 22 High disease activity

Time frame:
Week 36
Reported as:
Count of participants · Participants
Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, All Completers
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, All Completers394079
Other pre-specifiedClinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, Non-augmented

The CDAI score is based on 4 items: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * EGA, evaluator's global assessment (0=best to 10=worst) The CDAI score is calculated as follows and ranges from 0 to 76: • CDAI = TJC28 + SJC28 + SGA + EGA The CDAI score corresponds to the current RA activity: * 0 to ≤ 2.8 Remission * \>2.8 to ≤ 10 Low disease activity (LDA) * \>10 to ≤ 22 Moderate disease activity * \> 22 High disease activity

Time frame:
Week 36
Reported as:
Count of participants · Participants
Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, Non-augmented
ParticipantsTreatment to Open Label (TOL), Non-augmentedControl to Open Label (COL), Non-augmentedAll (TOL Non-augmented+COL Non Augmented)
Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, Non-augmented343569
Post-hocPersistence With SetPoint System as a Stand-alone Therapy

Therapy persistence means continuation of therapy after it is initiated.

Time frame:
Week 24
Reported as:
Count of participants · Participants
Persistence With SetPoint System as a Stand-alone Therapy
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Persistence With SetPoint System as a Stand-alone Therapy9699195
Post-hocPersistence With SetPoint System Therapy Augmented With a b/tsDMARD

Therapy persistence means the continuation of therapy after it is initiated. Augmentation of study therapy means the addition of treatment for RA therapy to active stimulation applied after completion of Week 12 assessments, during open-label, long-term follow-up. Augmented therapy may be applied at any time during long-term follow-up. The decision about the need, type and timing of treatment is left to the discretion of the Co-PI Rheumatologist and the subject. Subjects combining active stimulation with the following additions to RA therapy fall into the augmented therapy subgroup for analysis of response rates for key efficacy endpoints at specific timepoints: * Prednisone equivalent \>10 mg/day. If average daily corticosteroid use exceeds 10 mg/day prednisone after a period (time from previous visit up to the day before the current visit), the subject is assigned to the augmented therapy subgroup for that visit. * Corticosteroid injection. If subject received a corti

Time frame:
Week 24
Reported as:
Count of participants · Participants
Persistence With SetPoint System Therapy Augmented With a b/tsDMARD
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Persistence With SetPoint System Therapy Augmented With a b/tsDMARD171229
Post-hocPersistence With SetPoint System Therapy Augmented With a csDMARD and/or Steroid

Therapy persistence means continuation of therapy after it is initiated. Augmentation of study therapy means the addition of treatment for RA therapy to active stimulation applied after completion of Week 12 assessments, during open-label, long-term follow-up. Augmented therapy may be applied at any time during long-term follow-up. The decision about the need, type and timing of treatment is left to the discretion of the Co-PI Rheumatologist and the subject. Subjects combining active stimulation with the following additions to RA therapy fall into the augmented therapy subgroup for analysis of response rates for key efficacy endpoints at specific timepoints: * Prednisone equivalent \>10 mg/day. If average daily corticosteroid use exceeds 10 mg/day prednisone after a period (time from previous visit up to the day before the current visit), the subject is assigned to the augmented therapy subgroup for that visit. * Corticosteroid injection. If subject received a corticosteroi

Time frame:
Week 24
Reported as:
Count of participants · Participants
Persistence With SetPoint System Therapy Augmented With a csDMARD and/or Steroid
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Persistence With SetPoint System Therapy Augmented With a csDMARD and/or Steroid9817
Post-hocPersistence With SetPoint System Therapy as a Stand-alone or Augmented Thereapy

Therapy persistence is defined as the continuation of therapy after it is initiated.

Time frame:
Week 24
Reported as:
Count of participants · Participants
Persistence With SetPoint System Therapy as a Stand-alone or Augmented Thereapy
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Persistence With SetPoint System Therapy as a Stand-alone or Augmented Thereapy120118238
Post-hocDiscontinuation of SetPoint System Therapy

Discontinuation means active stimulation was suspended or the SetPoint System Implant was removed

Time frame:
Week 24
Reported as:
Count of participants · Participants
Discontinuation of SetPoint System Therapy
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Discontinuation of SetPoint System Therapy224
Other pre-specifiedDAS28-CRP Low Disease Activity (LDA) or Remission, All Completers

The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) score is a composite index providing a measure of disease activity, comprising: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * hsCRP (mg/L), high sensitivity C-reactive protein concentration (mg/L) A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96 The DAS28-CRP score corresponds to the current RA activity: * 0 to \< 2.6 Remission * 2.6 to \< 3.2 LDA * 3.2 to ≤ 5.1 Moderate activity * \> 5.1 High activity

Time frame:
Week 36
Reported as:
Count of participants · Participants
DAS28-CRP Low Disease Activity (LDA) or Remission, All Completers
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
DAS28-CRP Low Disease Activity (LDA) or Remission, All Completers384078
Other pre-specifiedDAS28-CRP Low Disease Activity (LDA) or Remission, Non-augmented

The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) score is a composite index providing a measure of disease activity, comprising: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * hsCRP (mg/L), high sensitivity C-reactive protein concentration (mg/L) A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96 The DAS28-CRP score corresponds to the current RA activity: * 0 to \< 2.6 Remission * 2.6 to \< 3.2 LDA * 3.2 to ≤ 5.1 Moderate activity * \> 5.1 High activity

Time frame:
Week 36
Reported as:
Count of participants · Participants
DAS28-CRP Low Disease Activity (LDA) or Remission, Non-augmented
ParticipantsTreatment to Open Label (TOL), Non-augmentedControl to Open Label (COL), Non-augmentedAll (TOL Non-augmented+COL Non Augmented)
DAS28-CRP Low Disease Activity (LDA) or Remission, Non-augmented313566
Other pre-specifiedHealth Assessment Questionnaire Disability Index (HAQ-DI) MCID Response, All Completers

HAQ-DI response based on the MCID of -0.22 from baseline. The HAQ-DI is a questionnaire validated for RA self-assessment by subjects that contains 20 questions in the following 8 functional areas: * Dressing and grooming * Arising * Eating * Walking * Hygiene * Reach * Grip * Common daily activities Scoring within each functional area is from 0 (without any difficulty) to 3 (unable to do). The total score is obtained by summing 8 area scores and dividing by 8. The total HAQ-DI score ranges from 0 to 3 and corresponds to the current degree of disability: * 0 to \< 1 Mild difficulties to moderate disability * 1 to \< 2 Moderate disability * 2 to 3 Severe to very severe disability

Time frame:
Week 36
Reported as:
Count of participants · Participants
Health Assessment Questionnaire Disability Index (HAQ-DI) MCID Response, All Completers
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Health Assessment Questionnaire Disability Index (HAQ-DI) MCID Response, All Completers6867135
Other pre-specifiedHealth Assessment Questionnaire Disability Index (HAQ-DI) Response (MCID -0.22), Non-augmented

HAQ-DI response based on the MCID of -0.22 from baseline. The HAQ-DI is a questionnaire validated for RA self-assessment by subjects that contains 20 questions in the following 8 functional areas: * Dressing and grooming * Arising * Eating * Walking * Hygiene * Reach * Grip * Common daily activities Scoring within each functional area is from 0 (without any difficulty) to 3 (unable to do). The total score is obtained by summing 8 area scores and dividing by 8. The total HAQ-DI score ranges from 0 to 3 and corresponds to the current degree of disability: * 0 to \< 1 Mild difficulties to moderate disability * 1 to \< 2 Moderate disability * 2 to 3 Severe to very severe disability

Time frame:
Week 36
Reported as:
Count of participants · Participants
Health Assessment Questionnaire Disability Index (HAQ-DI) Response (MCID -0.22), Non-augmented
ParticipantsTreatment to Open Label (TOL), Non-augmentedControl to Open Label (COL), Non-augmentedAll (TOL Non-augmented+COL Non Augmented)
Health Assessment Questionnaire Disability Index (HAQ-DI) Response (MCID -0.22), Non-augmented5351104
Post-hocPersistence With SetPoint System as a Stand-alone Therapy

Therapy persistence means continuation of therapy after it is initiated.

Time frame:
Week 36
Reported as:
Count of participants · Participants
Persistence With SetPoint System as a Stand-alone Therapy
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Persistence With SetPoint System as a Stand-alone Therapy8988177
Post-hocPersistence With SetPoint System Therapy Augmented With a b/tsDMARD

Therapy persistence means the continuation of therapy after it is initiated. Augmentation of study therapy means the addition of treatment for RA therapy to active stimulation applied after completion of Week 12 assessments, during open-label, long-term follow-up. Augmented therapy may be applied at any time during long-term follow-up. The decision about the need, type and timing of treatment is left to the discretion of the Co-PI Rheumatologist and the subject. Subjects combining active stimulation with the following additions to RA therapy fall into the augmented therapy subgroup for analysis of response rates for key efficacy endpoints at specific timepoints: * Prednisone equivalent \>10 mg/day. If average daily corticosteroid use exceeds 10 mg/day prednisone after a period (time from previous visit up to the day before the current visit), the subject is assigned to the augmented therapy subgroup for that visit. * Corticosteroid injection. If subject received a corti

Time frame:
Week 36
Reported as:
Count of participants · Participants
Persistence With SetPoint System Therapy Augmented With a b/tsDMARD
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Persistence With SetPoint System Therapy Augmented With a b/tsDMARD252247
Post-hocPersistence With SetPoint System Therapy Augmented With a csDMARD and/or Steroid

Therapy persistence means continuation of therapy after it is initiated. Augmentation of study therapy means the addition of treatment for RA therapy to active stimulation applied after completion of Week 12 assessments, during open-label, long-term follow-up. Augmented therapy may be applied at any time during long-term follow-up. The decision about the need, type and timing of treatment is left to the discretion of the Co-PI Rheumatologist and the subject. Subjects combining active stimulation with the following additions to RA therapy fall into the augmented therapy subgroup for analysis of response rates for key efficacy endpoints at specific timepoints: * Prednisone equivalent \>10 mg/day. If average daily corticosteroid use exceeds 10 mg/day prednisone after a period (time from previous visit up to the day before the current visit), the subject is assigned to the augmented therapy subgroup for that visit. * Corticosteroid injection. If subject received a corticosteroi

Time frame:
Week 36
Reported as:
Count of participants · Participants
Persistence With SetPoint System Therapy Augmented With a csDMARD and/or Steroid
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Persistence With SetPoint System Therapy Augmented With a csDMARD and/or Steroid7916
Post-hocPersistence With SetPoint System Therapy as a Stand-alone or Augmented Thereapy

Therapy persistence is defined as the continuation of therapy after it is initiated.

Time frame:
Week 36
Reported as:
Count of participants · Participants
Persistence With SetPoint System Therapy as a Stand-alone or Augmented Thereapy
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Persistence With SetPoint System Therapy as a Stand-alone or Augmented Thereapy120116236
Post-hocDiscontinuation of SetPoint System Therapy

Discontinuation means active stimulation was suspended or the SetPoint System Implant was removed

Time frame:
Week 36
Reported as:
Count of participants · Participants
Discontinuation of SetPoint System Therapy
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Discontinuation of SetPoint System Therapy246
Other pre-specifiedthe American College of Rheumatology (ACR) 20 Response, All Completers

Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

Time frame:
Week 48
Reported as:
Count of participants · Participants
the American College of Rheumatology (ACR) 20 Response, All Completers
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
the American College of Rheumatology (ACR) 20 Response, All Completers6162123
Other pre-specifiedthe American College of Rheumatology (ACR) 20 Response, Non-augmented

Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

Time frame:
Week 48
Reported as:
Count of participants · Participants
the American College of Rheumatology (ACR) 20 Response, Non-augmented
ParticipantsTreatment to Open Label (TOL), Non-augmentedControl to Open Label (COL), Non-augmentedAll (TOL Non-augmented+COL Non Augmented)
the American College of Rheumatology (ACR) 20 Response, Non-augmented434891
Other pre-specifiedClinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, All Completers

The CDAI score is based on 4 items: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * EGA, evaluator's global assessment (0=best to 10=worst) The CDAI score is calculated as follows and ranges from 0 to 76: • CDAI = TJC28 + SJC28 + SGA + EGA The CDAI score corresponds to the current RA activity: * 0 to ≤ 2.8 Remission * \>2.8 to ≤ 10 Low disease activity (LDA) * \>10 to ≤ 22 Moderate disease activity * \> 22 High disease activity

Time frame:
Week 48
Reported as:
Count of participants · Participants
Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, All Completers
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, All Completers474188
Other pre-specifiedClinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, Non-augmented

The CDAI score is based on 4 items: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * EGA, evaluator's global assessment (0=best to 10=worst) The CDAI score is calculated as follows and ranges from 0 to 76: • CDAI = TJC28 + SJC28 + SGA + EGA The CDAI score corresponds to the current RA activity: * 0 to ≤ 2.8 Remission * \>2.8 to ≤ 10 Low disease activity (LDA) * \>10 to ≤ 22 Moderate disease activity * \> 22 High disease activity

Time frame:
Week 48
Reported as:
Count of participants · Participants
Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, Non-augmented
ParticipantsTreatment to Open Label (TOL), Non-augmentedControl to Open Label (COL), Non-augmentedAll (TOL Non-augmented+COL Non Augmented)
Clinical Disease Activity Index (CDAI) Low Disease Activity (LDA) or Remission, Non-augmented363369
Other pre-specifiedDAS28-CRP Low Disease Activity (LDA) or Remission, All Completers

The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) score is a composite index providing a measure of disease activity, comprising: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * hsCRP (mg/L), high sensitivity C-reactive protein concentration (mg/L) A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96 The DAS28-CRP score corresponds to the current RA activity: * 0 to \< 2.6 Remission * 2.6 to \< 3.2 LDA * 3.2 to ≤ 5.1 Moderate activity * \> 5.1 High activity

Time frame:
Week 48
Reported as:
Count of participants · Participants
DAS28-CRP Low Disease Activity (LDA) or Remission, All Completers
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
DAS28-CRP Low Disease Activity (LDA) or Remission, All Completers504292
Other pre-specifiedDAS28-CRP Low Disease Activity (LDA) or Remission, Non-augmented

The Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) score is a composite index providing a measure of disease activity, comprising: * TJC28, tender joint count of 28 joints (scale 0=best to 28=worst) * SJC28, swollen joint count of 28 joints (scale 0=best to 28=worst) * SGA, subject global assessment (0=best to 10=worst) * hsCRP (mg/L), high sensitivity C-reactive protein concentration (mg/L) A total score ranges from 0 to 10 and is computed as follows: DAS28-CRP = 0.56 \* sqrt(TJC28) + 0.28 \* sqrt(SJC28) + 0.36 \* ln(CRP+1) + 0.014 \* SGA + 0.96 The DAS28-CRP score corresponds to the current RA activity: * 0 to \< 2.6 Remission * 2.6 to \< 3.2 LDA * 3.2 to ≤ 5.1 Moderate activity * \> 5.1 High activity

Time frame:
Week 48
Reported as:
Count of participants · Participants
DAS28-CRP Low Disease Activity (LDA) or Remission, Non-augmented
ParticipantsTreatment to Open Label (TOL), Non-augmentedControl to Open Label (COL), Non-augmentedAll (TOL Non-augmented+COL Non Augmented)
DAS28-CRP Low Disease Activity (LDA) or Remission, Non-augmented373269
Other pre-specifiedHealth Assessment Questionnaire Disability Index (HAQ-DI) MCID Response, All Completers

HAQ-DI response based on the MCID of -0.22 from baseline. The HAQ-DI is a questionnaire validated for RA self-assessment by subjects that contains 20 questions in the following 8 functional areas: * Dressing and grooming * Arising * Eating * Walking * Hygiene * Reach * Grip * Common daily activities Scoring within each functional area is from 0 (without any difficulty) to 3 (unable to do). The total score is obtained by summing 8 area scores and dividing by 8. The total HAQ-DI score ranges from 0 to 3 and corresponds to the current degree of disability: * 0 to \< 1 Mild difficulties to moderate disability * 1 to \< 2 Moderate disability * 2 to 3 Severe to very severe disability

Time frame:
Week 48
Reported as:
Count of participants · Participants
Health Assessment Questionnaire Disability Index (HAQ-DI) MCID Response, All Completers
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Health Assessment Questionnaire Disability Index (HAQ-DI) MCID Response, All Completers6667133
Other pre-specifiedHealth Assessment Questionnaire Disability Index (HAQ-DI) Response (MCID -0.22), Non-augmented

HAQ-DI response based on the MCID of -0.22 from baseline. The HAQ-DI is a questionnaire validated for RA self-assessment by subjects that contains 20 questions in the following 8 functional areas: * Dressing and grooming * Arising * Eating * Walking * Hygiene * Reach * Grip * Common daily activities Scoring within each functional area is from 0 (without any difficulty) to 3 (unable to do). The total score is obtained by summing 8 area scores and dividing by 8. The total HAQ-DI score ranges from 0 to 3 and corresponds to the current degree of disability: * 0 to \< 1 Mild difficulties to moderate disability * 1 to \< 2 Moderate disability * 2 to 3 Severe to very severe disability

Time frame:
Week 48
Reported as:
Count of participants · Participants
Health Assessment Questionnaire Disability Index (HAQ-DI) Response (MCID -0.22), Non-augmented
ParticipantsTreatment to Open Label (TOL), Non-augmentedControl to Open Label (COL), Non-augmentedAll (TOL Non-augmented+COL Non Augmented)
Health Assessment Questionnaire Disability Index (HAQ-DI) Response (MCID -0.22), Non-augmented414990
Post-hocPersistence With SetPoint System as a Stand-alone Therapy

Therapy persistence means continuation of therapy after it is initiated.

Time frame:
Week 48
Reported as:
Count of participants · Participants
Persistence With SetPoint System as a Stand-alone Therapy
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Persistence With SetPoint System as a Stand-alone Therapy7781158
Post-hocPersistence With SetPoint System Therapy Augmented With a b/tsDMARD

Therapy persistence means the continuation of therapy after it is initiated. Augmentation of study therapy means the addition of treatment for RA therapy to active stimulation applied after completion of Week 12 assessments, during open-label, long-term follow-up. Augmented therapy may be applied at any time during long-term follow-up. The decision about the need, type and timing of treatment is left to the discretion of the Co-PI Rheumatologist and the subject. Subjects combining active stimulation with the following additions to RA therapy fall into the augmented therapy subgroup for analysis of response rates for key efficacy endpoints at specific timepoints: * Prednisone equivalent \>10 mg/day. If average daily corticosteroid use exceeds 10 mg/day prednisone after a period (time from previous visit up to the day before the current visit), the subject is assigned to the augmented therapy subgroup for that visit. * Corticosteroid injection. If subject received a corti

Time frame:
Week 48
Reported as:
Count of participants · Participants
Persistence With SetPoint System Therapy Augmented With a b/tsDMARD
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Persistence With SetPoint System Therapy Augmented With a b/tsDMARD322860
Post-hocPersistence With SetPoint System Therapy Augmented With a csDMARD and/or Steroid

Therapy persistence means continuation of therapy after it is initiated. Augmentation of study therapy means the addition of treatment for RA therapy to active stimulation applied after completion of Week 12 assessments, during open-label, long-term follow-up. Augmented therapy may be applied at any time during long-term follow-up. The decision about the need, type and timing of treatment is left to the discretion of the Co-PI Rheumatologist and the subject. Subjects combining active stimulation with the following additions to RA therapy fall into the augmented therapy subgroup for analysis of response rates for key efficacy endpoints at specific timepoints: * Prednisone equivalent \>10 mg/day. If average daily corticosteroid use exceeds 10 mg/day prednisone after a period (time from previous visit up to the day before the current visit), the subject is assigned to the augmented therapy subgroup for that visit. * Corticosteroid injection. If subject received a corticosteroi

Time frame:
Week 48
Reported as:
Count of participants · Participants
Persistence With SetPoint System Therapy Augmented With a csDMARD and/or Steroid
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Persistence With SetPoint System Therapy Augmented With a csDMARD and/or Steroid161228
Post-hocPersistence With SetPoint System Therapy as a Stand-alone or Augmented Thereapy

Therapy persistence is defined as the continuation of therapy after it is initiated.

Time frame:
Week 48
Reported as:
Count of participants · Participants
Persistence With SetPoint System Therapy as a Stand-alone or Augmented Thereapy
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Persistence With SetPoint System Therapy as a Stand-alone or Augmented Thereapy120116236
Post-hocDiscontinuation of SetPoint System Therapy

Discontinuation means active stimulation was suspended or the SetPoint System Implant was removed

Time frame:
Week 48
Reported as:
Count of participants · Participants
Discontinuation of SetPoint System Therapy
ParticipantsTreatment to Open Label (TOL)Control to Open Label (COL)All (TOL+COL)
Discontinuation of SetPoint System Therapy246
Other pre-specifiedthe American College of Rheumatology (ACR) 20 Response, Subjects With 1 Prior b/tsDMARD

Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

Time frame:
Week 12
Reported as:
Count of participants · Participants
the American College of Rheumatology (ACR) 20 Response, Subjects With 1 Prior b/tsDMARD
ParticipantsTreatmentControl
the American College of Rheumatology (ACR) 20 Response, Subjects With 1 Prior b/tsDMARD238
Statistical analysis
  • Treatment vs Control · Cochran-Mantel-Haenszel · p = 0.0054 · Risk difference (rd): 25.2 · 95% CI 7.1 to 43.3
Other pre-specifiedthe American College of Rheumatology (ACR) 20 Response, Subjects With 2 Prior b/tsDMARD

Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

Time frame:
Week 12
Reported as:
Count of participants · Participants
the American College of Rheumatology (ACR) 20 Response, Subjects With 2 Prior b/tsDMARD
ParticipantsTreatmentControl
the American College of Rheumatology (ACR) 20 Response, Subjects With 2 Prior b/tsDMARD83
Statistical analysis
  • Treatment vs Control · Cochran-Mantel-Haenszel · p = 0.0437 · Risk difference (rd): 20.3 · 95% CI -2.2 to 42.9
Other pre-specifiedthe American College of Rheumatology (ACR) 20 Response, Subjects With 3 Prior b/tsDMARD

Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

Time frame:
Week 12
Reported as:
Count of participants · Participants
the American College of Rheumatology (ACR) 20 Response, Subjects With 3 Prior b/tsDMARD
ParticipantsTreatmentControl
the American College of Rheumatology (ACR) 20 Response, Subjects With 3 Prior b/tsDMARD36
Statistical analysis
  • Treatment vs Control · Cochran-Mantel-Haenszel · p = 0.1643 · Risk difference (rd): -17.6 · 95% CI -51.1 to 16.0
Other pre-specifiedthe American College of Rheumatology (ACR) 20 Response, Subjects With >=4 Prior b/tsDMARD

Response is defined as achieving at least 20% improvement from baseline to Week 12 in tender and swollen joint counts of 28 joints (scale 0=best to 28=worst) and 3 out of the following 5 measures: Health Assessment Questionnaire Disability Index (HAQ-DI) score (scale 0=no difficulty to 3=unable to do), subject global assessment (0=best to 10=worst), subject pain (0=no pain to 10=worst), evaluator's global assessment (0=best to 10=worst), or high sensitivity C-reactive protein (hsCRP) concentration (mg/L).

Time frame:
Week 12
Reported as:
Count of participants · Participants
the American College of Rheumatology (ACR) 20 Response, Subjects With >=4 Prior b/tsDMARD
ParticipantsTreatmentControl
the American College of Rheumatology (ACR) 20 Response, Subjects With >=4 Prior b/tsDMARD912
Statistical analysis
  • Treatment vs Control · Cochran-Mantel-Haenszel · p = 0.415 · Risk difference (rd): -2.4 · 95% CI -24.1 to 19.2

Adverse events

Collected over As collected from time of consent through March 10, 2025 (data cut date for Clinical Study Report). This period coverage an average duration of 803 days (2.2 years) for each subject.. Non-serious events are listed at a 3% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Treatment0/122 (0%)22/122 (18%)74/122 (60.7%)
Control0/120 (0%)29/120 (24.2%)79/120 (65.8%)
Most frequent serious events
Showing 10 of 81
Most frequent serious events
EventTreatmentControl
PneumoniaInfections and infestations2/1223/120
CellulitisInfections and infestations0/1222/120
Cerebrovascular accidentNervous system disorders0/1222/120
Acute kidney injuryRenal and urinary disorders2/1221/120
DysphoniaRespiratory, thoracic and mediastinal disorders0/1221/120
Chest painGeneral disorders and administration site conditions0/1221/120
Osteomyelitis acuteInfections and infestations0/1221/120
Sternal fractureInjury, poisoning and procedural complications0/1221/120
Swollen tongueGastrointestinal disorders0/1221/120
Thoracic vertebral fractureInjury, poisoning and procedural complications0/1221/120
Most frequent other events
Showing 10 of 29
Most frequent other events
EventTreatmentControl
COVID-19Infections and infestations18/12223/120
Urinary tract infectionInfections and infestations8/12210/120
ArthralgiaMusculoskeletal and connective tissue disorders10/1228/120
NasopharyngitisInfections and infestations10/1225/120
Upper respiratory tract infectionInfections and infestations10/1222/120
SinusitisInfections and infestations9/1228/120
OsteoarthritisMusculoskeletal and connective tissue disorders7/1228/120
COVID-19Infections and infestations8/1226/120
Vocal cord paresisNervous system disorders5/1226/120
InfluenzaInfections and infestations3/1226/120

Baseline characteristics

Age, Continuous
Age, Continuous(years)TreatmentControlTotal
Mean55.8 ± 10.2855.5 ± 10.4955.7 ± 10.36
Sex: Female, Male
Sex: Female, Male(Participants)TreatmentControlTotal
Female98110208
Male241034
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)TreatmentControlTotal
Hispanic or Latino232245
Not Hispanic or Latino9895193
Unknown or Not Reported134
Race (NIH/OMB)
Race (NIH/OMB)(Participants)TreatmentControlTotal
American Indian or Alaska Native101
Asian459
Native Hawaiian or Other Pacific Islander011
Black or African American101222
White10293195
More than one race5914
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(participants)TreatmentControlTotal
United States122120242
Body Mass Index
Body Mass Index(kg/m2)TreatmentControlTotal
Mean30.7 ± 7.2529.8 ± 6.7130.3 ± 6.98
Rheumatoid arthritis (RA) duration
Rheumatoid arthritis (RA) duration(years)TreatmentControlTotal
Mean13.0 ± 10.5911.8 ± 10.4512.4 ± 10.52
Clinical Disease Activity Index (CDAI) score
Clinical Disease Activity Index (CDAI) score(score on a scale)TreatmentControlTotal
Mean36.1 ± 12.6038.2 ± 12.7537.1 ± 12.69

13 further baseline measures are reported on the registry.

08

Study locations

42 sites
09

References and documents

Publications

  • Tesser JRP, Crowley AR, Box EJ, June JP, Wickersham PB, Valenzuela GJ, Gaylis NB, Lam GKW, Pacheco LA, Ridley DJ, Pinto-Patarroyo GP, Novack SN, Churchill MA, Kohler M, Lee EC, Pando JA, Parris GR, Peterson JR, Shah T, Singhal AK, Vuong V, Levine YA, Evangelista ML, Derosier AA, Curtis JR, Richardson RM, Chernoff D. Vagus nerve-mediated neuroimmune modulation for rheumatoid arthritis: a pivotal randomized controlled trial. Nat Med. 2026 Jan;32(1):369-378. doi: 10.1038/s41591-025-04114-7. Epub 2025 Dec 22. PubMed 41429981 ↗
  • Peterson D, Van Poppel M, Boling W, Santos P, Schwalb J, Eisenberg H, Mehta A, Spader H, Botros J, Vrionis FD, Ko A, Adelson PD, Lega B, Konrad P, Calle G, Vale FL, Bucholz R, Richardson RM. Clinical safety and feasibility of a novel implantable neuroimmune modulation device for the treatment of rheumatoid arthritis: initial results from the randomized, double-blind, sham-controlled RESET-RA study. Bioelectron Med. 2024 Mar 13;10(1):8. doi: 10.1186/s42234-023-00138-x. PubMed 38475923 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No — No sharing data is planned.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jan 2021 to primary completion in May 2024, 40 months.

Results were first posted in Dec 2025, 1 year 7 months after primary completion.

Of 116 industry-sponsored phase 3 interventional studies under Arthritis, Rheumatoid, half reached primary completion within 24 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 31. This study's 40 months is above that.

Counting every sponsor, half of 148 studies reached it within 26 months; a quarter within 17 and three quarters within 40.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 31, 2020
First posted
Sep 7, 2020
StartActual
Jan 11, 2021
Primary completionActual
May 16, 2024
CompletionEst.
Oct 2027
Results first posted
Dec 19, 2025
Last update
Apr 14, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 14, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT04539964
Lead sponsor
SetPoint Medical Corporation
Responsible party
Sponsor
First posted
Sep 7, 2020
Start date
Jan 11, 2021
Primary completion
May 16, 2024
Completion
Oct 2027 (estimated)
Results posted
Dec 19, 2025
Last update
Apr 14, 2026

Study contacts

John Tesser, MD
principal investigator · Arizona Arthritis and Rheumatology Research, P.C.
Mark Richardson, MD PhD
principal investigator · Massachusetts General Hospital

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

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