CClinicalTrials.gg
CompletedNCT01970475Updated Dec 13, 2016Results posted

Efficacy and Safety Study of ABP 501 Compared to Adalimumab in Subjects With Moderate to Severe Rheumatoid Arthritis

A Phase 3 interventional study of ABP 501 and Adalimumab in Arthritis, Rheumatoid, sponsored by Amgen. Completed at 11 sites in 4 countries. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2016-12-13.

Sponsored by Amgen · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
526
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

The purpose of this study is to compare the effectiveness and safety of ABP 501 against adalimumab (HUMIRA®) in adults with moderate to severe rheumatoid arthritis (RA) who have an inadequate response to methotrexate (MTX).

02

Conditions studied

  • Arthritis, Rheumatoid

Keywords

  • Arthritis
  • Rheumatoid
03

In context

Arthritis

3,554 studies on the registry are indexed under Arthritis; 318 are open to participants now.

This study's enrollment of 526 is above the median of 90 across 2,377 interventional studies indexed under Arthritis.

Browse Arthritis studies →

Lead sponsor

Amgen is the lead sponsor of 1,015 studies on the registry; 49 are open to participants now.

Of its 245 completed or terminated interventional studies of FDA-regulated products, 159 (65%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Men or women ≥ 18 and ≤ 80 years old
  2. Subjects must be diagnosed with rheumatoid arthritis for at least 3 months before baseline
  3. Active RA defined as ≥ 6 swollen joints and ≥ 6 tender joints at screening and baseline
  4. Subjects must be taking MTX for ≥ 12 consecutive weeks and on a stable dose of 7.5 to 25 mg/week for > 8 weeks prior to receiving the study drug and be willing to remain on stable dose throughout the study
  5. Subject has no known history of active tuberculosis

Exclusion criteria

Exclusion Criteria:

  1. Class IV RA, Felty's syndrome or history of prosthetic or native joint infection
  2. Major chronic inflammatory disease or connective tissue disease other than RA, with the exception of secondary Sjögren's syndrome
  3. Prior use of 2 or more biologic therapies for RA
  4. Previous receipt of HUMIRA® (adalimumab) or a biosimilar of adalimumab
  5. Ongoing use of prohibited treatments

Other Inclusion/Exclusion criteria may apply

05

Study design

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

Study arms

  • Experimental
    ABP 501

    Participants received ABP 501 40 mg subcutaneously on day 1 and every 2 weeks thereafter until week 22.

    Biological: ABP 501

  • Active comparator
    Adalimumab

    Participants received adalimumab 40 mg subcutaneously on day 1 and every 2 weeks thereafter until week 22.

    Biological: Adalimumab

Interventions

  • BiologicalABP 501

    Solution for subcutaneous injection in pre-filled syringe

    Also known as: AMJEVITA™, Adalimumab-atto

  • BiologicalAdalimumab

    Solution for subcutaneous injection in pre-filled syringe

    Also known as: HUMIRA®

06

What researchers measure

Primary outcomes

  1. Percentage of Participants With an American College of Rheumatology (ACR) 20 Response at Week 24

    A participant was a responder if the following 3 criteria for improvement from Baseline were met: * ≥ 20% improvement in tender joint count; * ≥ 20% improvement in swollen joint count; and * ≥ 20% improvement in at least 3 of the 5 following parameters: * Patient's assessment of pain (measured on a 100 mm visual analog scale \[VAS\]); * Patient's global assessment of disease activity (measured on a likert scale from 0 to 10); * Physician's global assessment of disease activity (measured on a likert scale from 0 to 10); * Patient's self-assessment of physical function (Health Assessment Questionnaire - Disability Index \[HAQ-DI\]); * C-Reactive Protein level.

    Time frame: Baseline and Week 24

Secondary outcomes

  1. Change From Baseline in Disease Activity Score 28-C-reactive Protein (DAS28-CRP)

    The DAS28-CRP is a composite score to measure disease activity in patients with rheumatoid arthritis, derived from the following variables: * The number of swollen and tender joints assessed using the 28-joint count; * C-reactive protein (CRP) level * Patient's global assessment of disease activity assessed on a score from 0 to 100 transformed from the result measured on a horizontal scale from 0 (no RA activity at all) to 10 (worst RA activity imaginable). The DAS28-CRP score ranges from approximately zero to ten. Higher DAS28-CRP scores indicate higher disease activity. A repeated measures analysis with the DAS28-CRP change from baseline as the response and the stratification variables, visit, treatment, treatment-by-visit interaction and the baseline DAS28-CRP measurement as predictors in the model was performed.

    Time frame: Baseline and weeks 2, 4, 8, 12, 18, and 24

  2. Percentage of Participants With an ACR20 Response at Week 2 and Week 8

    A participant was a responder if the following 3 criteria for improvement from Baseline were met: * ≥ 20% improvement in tender joint count; * ≥ 20% improvement in swollen joint count; and * ≥ 20% improvement in at least 3 of the 5 following parameters: * Patient's assessment of pain (measured on a 100 mm visual analog scale \[VAS\]); * Patient's global assessment of disease activity (measured on a likert scale from 0 to 10); * Physician's global assessment of disease activity (measured on a likert scale from 0 to 10); * Patient's self-assessment of physical function (Health Assessment Questionnaire - Disability Index \[HAQ-DI\]); * C-Reactive Protein level.

    Time frame: Baseline, week 2 and week 8

  3. Percentage of Participants With an ACR50 Response at Week 24

    A participant was a responder if the following 3 criteria for improvement from Baseline were met: * ≥ 50% improvement in tender joint count; * ≥ 50% improvement in swollen joint count; and * ≥ 50% improvement in at least 3 of the 5 following parameters: * Patient's assessment of pain (measured on a 100 mm visual analog scale \[VAS\]); * Patient's global assessment of disease activity (measured on a likert scale from 0 to 10); * Physician's global assessment of disease activity (measured on a likert scale from 0 to 10); * Patient's self-assessment of physical function (Health Assessment Questionnaire - Disability Index \[HAQ-DI\]); * C-Reactive Protein level.

    Time frame: Baseline and week 24

  4. Percentage of Participants With an ACR70 Response at Week 24

    A participant was a responder if the following 3 criteria for improvement from Baseline were met: * ≥ 70% improvement in tender joint count; * ≥ 70% improvement in swollen joint count; and * ≥ 70% improvement in at least 3 of the 5 following parameters: * Patient's assessment of pain (measured on a 100 mm visual analog scale \[VAS\]); * Patient's global assessment of disease activity (measured on a likert scale from 0 to 10); * Physician's global assessment of disease activity (measured on a likert scale from 0 to 10); * Patient's self-assessment of physical function (Health Assessment Questionnaire - Disability Index \[HAQ-DI\]); * C-Reactive Protein level.

    Time frame: Baseline and Week 24

  5. Number of Participants With Adverse Events

    Adverse events (AEs) were graded for severity according to the Common Terminology Criteria for Adverse Events (CTCAE) version 4.03 according to the following scale: 1 = mild; 2 = moderate; 3 = severe; 4 = life-threatening; 5 = fatal. A treatment-related AE is defined as an event where the answer to the question "is there a reasonable possibility that the event may have been caused by the Investigational Medicinal Product" was yes. A serious adverse event is defined as an AE that meets at least 1 of the following serious criteria: * fatal * life threatening (places the subject at immediate risk of death) * requires inpatient hospitalization or prolongation of existing hospitalization * results in persistent or significant disability/incapacity * congenital anomaly/birth defect * other medically important serious event.

    Time frame: From the time of first treatment up to 28 days following the last dose of study treatment; 26 weeks.

  6. Percentage of Participants Who Developed Antibodies to ABP 501 or Adalimumab

    Two validated assays were used to detect the presence of anti-drug antibodies. Samples were first tested in an electrochemiluminescence (ECL)-based bridging immunoassay to detect anti-drug antibodies (ADA) against ABP 501 and adalimumab (Binding Antibody Assay). Samples confirmed to be positive for binding antibodies were subsequently tested in a non-cell based bioassay to determine neutralizing activity against ABP 501 or adalimumab (Neutralizing Antibody Assay). Developing antibody incidence is defined as a negative or no antibody result at baseline and a positive antibody result at a post-baseline time point.

    Time frame: Up to week 26

07

Results

Posted Dec 13, 2016

Participant flow

This study was conducted at 92 centers in 12 countries in Europe, North America and Latin America. The first participant enrolled on 24 October 2013 and the last participant enrolled on 26 May 2014.

Participant flow — Overall Study
MilestoneABP 501Adalimumab
Started264262
Completed243251
Not completed2111
Withdrew: Withdrawal by subject116
Withdrew: Adverse event73
Withdrew: Lost to follow-up22
Withdrew: Protocol violation10

Outcome measures

PrimaryPercentage of Participants With an American College of Rheumatology (ACR) 20 Response at Week 24

A participant was a responder if the following 3 criteria for improvement from Baseline were met: * ≥ 20% improvement in tender joint count; * ≥ 20% improvement in swollen joint count; and * ≥ 20% improvement in at least 3 of the 5 following parameters: * Patient's assessment of pain (measured on a 100 mm visual analog scale \[VAS\]); * Patient's global assessment of disease activity (measured on a likert scale from 0 to 10); * Physician's global assessment of disease activity (measured on a likert scale from 0 to 10); * Patient's self-assessment of physical function (Health Assessment Questionnaire - Disability Index \[HAQ-DI\]); * C-Reactive Protein level.

Time frame:
Baseline and Week 24
Reported as:
Number · percentage of participants
Percentage of Participants With an American College of Rheumatology (ACR) 20 Response at Week 24
percentage of participantsABP 501Adalimumab
Percentage of Participants With an American College of Rheumatology (ACR) 20 Response at Week 2474.672.4
Statistical analysis
  • ABP 501 vs Adalimumab · Risk ratio (rr): 1.039 · 90% CI 0.954 to 1.133Based on a generalized linear model adjusted for geographic region and prior biological use for RA as covariates in the model.
SecondaryChange From Baseline in Disease Activity Score 28-C-reactive Protein (DAS28-CRP)

The DAS28-CRP is a composite score to measure disease activity in patients with rheumatoid arthritis, derived from the following variables: * The number of swollen and tender joints assessed using the 28-joint count; * C-reactive protein (CRP) level * Patient's global assessment of disease activity assessed on a score from 0 to 100 transformed from the result measured on a horizontal scale from 0 (no RA activity at all) to 10 (worst RA activity imaginable). The DAS28-CRP score ranges from approximately zero to ten. Higher DAS28-CRP scores indicate higher disease activity. A repeated measures analysis with the DAS28-CRP change from baseline as the response and the stratification variables, visit, treatment, treatment-by-visit interaction and the baseline DAS28-CRP measurement as predictors in the model was performed.

Time frame:
Baseline and weeks 2, 4, 8, 12, 18, and 24
Reported as:
Least squares mean · units on a scale
Change From Baseline in Disease Activity Score 28-C-reactive Protein (DAS28-CRP)
units on a scaleABP 501Adalimumab
Week 2 (n = 254, 252)-1.01 ± 0.891-0.96 ± 0.890
Week 4 (n = 255, 254)-1.45 ± 1.048-1.42 ± 0.979
Week 8 (n = 247, 255)-1.79 ± 1.075-1.70 ± 1.093
Week 12 (n = 245, 250)-2.04 ± 1.112-1.93 ± 1.171
Week 18 (n = 244, 250)-2.30 ± 1.184-2.17 ± 1.189
Week 24 (n = 243, 250)-2.32 ± 1.237-2.32 ± 1.209
SecondaryPercentage of Participants With an ACR20 Response at Week 2 and Week 8

A participant was a responder if the following 3 criteria for improvement from Baseline were met: * ≥ 20% improvement in tender joint count; * ≥ 20% improvement in swollen joint count; and * ≥ 20% improvement in at least 3 of the 5 following parameters: * Patient's assessment of pain (measured on a 100 mm visual analog scale \[VAS\]); * Patient's global assessment of disease activity (measured on a likert scale from 0 to 10); * Physician's global assessment of disease activity (measured on a likert scale from 0 to 10); * Patient's self-assessment of physical function (Health Assessment Questionnaire - Disability Index \[HAQ-DI\]); * C-Reactive Protein level.

Time frame:
Baseline, week 2 and week 8
Reported as:
Number · percentage of participants
Percentage of Participants With an ACR20 Response at Week 2 and Week 8
percentage of participantsABP 501Adalimumab
Week 2 (n = 254, 257)35.424.5
Week 8 (n = 260, 261)63.562.5
SecondaryPercentage of Participants With an ACR50 Response at Week 24

A participant was a responder if the following 3 criteria for improvement from Baseline were met: * ≥ 50% improvement in tender joint count; * ≥ 50% improvement in swollen joint count; and * ≥ 50% improvement in at least 3 of the 5 following parameters: * Patient's assessment of pain (measured on a 100 mm visual analog scale \[VAS\]); * Patient's global assessment of disease activity (measured on a likert scale from 0 to 10); * Physician's global assessment of disease activity (measured on a likert scale from 0 to 10); * Patient's self-assessment of physical function (Health Assessment Questionnaire - Disability Index \[HAQ-DI\]); * C-Reactive Protein level.

Time frame:
Baseline and week 24
Reported as:
Number · percentage of participants
Percentage of Participants With an ACR50 Response at Week 24
percentage of participantsABP 501Adalimumab
Percentage of Participants With an ACR50 Response at Week 2449.252.0
SecondaryPercentage of Participants With an ACR70 Response at Week 24

A participant was a responder if the following 3 criteria for improvement from Baseline were met: * ≥ 70% improvement in tender joint count; * ≥ 70% improvement in swollen joint count; and * ≥ 70% improvement in at least 3 of the 5 following parameters: * Patient's assessment of pain (measured on a 100 mm visual analog scale \[VAS\]); * Patient's global assessment of disease activity (measured on a likert scale from 0 to 10); * Physician's global assessment of disease activity (measured on a likert scale from 0 to 10); * Patient's self-assessment of physical function (Health Assessment Questionnaire - Disability Index \[HAQ-DI\]); * C-Reactive Protein level.

Time frame:
Baseline and Week 24
Reported as:
Number · percentage of participants
Percentage of Participants With an ACR70 Response at Week 24
percentage of participantsABP 501Adalimumab
Percentage of Participants With an ACR70 Response at Week 2426.022.9
SecondaryNumber of Participants With Adverse Events

Adverse events (AEs) were graded for severity according to the Common Terminology Criteria for Adverse Events (CTCAE) version 4.03 according to the following scale: 1 = mild; 2 = moderate; 3 = severe; 4 = life-threatening; 5 = fatal. A treatment-related AE is defined as an event where the answer to the question "is there a reasonable possibility that the event may have been caused by the Investigational Medicinal Product" was yes. A serious adverse event is defined as an AE that meets at least 1 of the following serious criteria: * fatal * life threatening (places the subject at immediate risk of death) * requires inpatient hospitalization or prolongation of existing hospitalization * results in persistent or significant disability/incapacity * congenital anomaly/birth defect * other medically important serious event.

Time frame:
From the time of first treatment up to 28 days following the last dose of study treatment; 26 weeks.
Reported as:
Number · participants
Number of Participants With Adverse Events
participantsABP 501Adalimumab
Any adverse event (AE)132143
Adverse event ≥ grade 3917
Treatment-related adverse event (TRAE)5055
Treatment-related adverse event ≥ grade 332
Serious adverse event (SAE)1013
Treatment-related serious adverse event41
AE leading to discontinuation of study drug52
TRAE leading to discontinuation of study drug41
AE leading to discontinuation from study72
TRAE leading to discontinuation from study50
SecondaryPercentage of Participants Who Developed Antibodies to ABP 501 or Adalimumab

Two validated assays were used to detect the presence of anti-drug antibodies. Samples were first tested in an electrochemiluminescence (ECL)-based bridging immunoassay to detect anti-drug antibodies (ADA) against ABP 501 and adalimumab (Binding Antibody Assay). Samples confirmed to be positive for binding antibodies were subsequently tested in a non-cell based bioassay to determine neutralizing activity against ABP 501 or adalimumab (Neutralizing Antibody Assay). Developing antibody incidence is defined as a negative or no antibody result at baseline and a positive antibody result at a post-baseline time point.

Time frame:
Up to week 26
Reported as:
Number · percentage of participants
Percentage of Participants Who Developed Antibodies to ABP 501 or Adalimumab
percentage of participantsABP 501Adalimumab
Developing Binding Antibody38.338.2
Developing Neutralizing Antibody9.111.1

Adverse events

Collected over From the time of first treatment but on or within 28 days following the last dose of study treatment; 26 weeks.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
ABP 501—10/264 (3.8%)17/264 (6.4%)
Adalimumab—13/262 (5%)19/262 (7.3%)
Most frequent serious events
Showing 10 of 26
Most frequent serious events
EventABP 501Adalimumab
SepsisInfections and infestations2/2640/262
Acute myocardial infarctionCardiac disorders0/2641/262
Cardiac failure congestiveCardiac disorders0/2641/262
Myocardial infarctionCardiac disorders0/2641/262
Wolff-Parkinson-White syndromeCardiac disorders0/2641/262
Large intestinal obstructionGastrointestinal disorders0/2641/262
Corneal graft rejectionImmune system disorders0/2641/262
Arthritis bacterialInfections and infestations0/2641/262
GastroenteritisInfections and infestations0/2641/262
Pneumonia fungalInfections and infestations0/2641/262
Most frequent other events
Most frequent other events
EventABP 501Adalimumab
NasopharyngitisInfections and infestations17/26419/262

Baseline characteristics

The full analysis set (all randomized participants)

Age, Continuous
Age, Continuous(years)ABP 501AdalimumabTotal
Mean55.4 ± 11.8856.3 ± 11.4755.9 ± 11.67
Age, Customized
Age, Customized(participants)ABP 501AdalimumabTotal
< 65 years205197402
≥ 65 years5965124
Sex: Female, Male
Sex: Female, Male(Participants)ABP 501AdalimumabTotal
Female214212426
Male5050100
Race/Ethnicity, Customized
Race/Ethnicity, Customized(participants)ABP 501AdalimumabTotal
White251249500
Black or African American91221
Asian303
American Indian or Alaska Native000
Native Hawaiian or Other Pacific Islander000
Other112
Ethnicity
Ethnicity(participants)ABP 501AdalimumabTotal
Hispanic or Latino332558
Not Hispanic or Latino230236466
Not Allowed to Collect112
Geographic Region
Geographic Region(participants)ABP 501AdalimumabTotal
Eastern Europe169168337
Western Europe222042
North America7272144
Latin America123
Prior Biological Use for Rheumatoid Arthritis (RA)
Prior Biological Use for Rheumatoid Arthritis (RA)(participants)ABP 501AdalimumabTotal
Yes7174145
No193188381
Duration of RA
Duration of RA(years)ABP 501AdalimumabTotal
Mean9.41 ± 8.0769.37 ± 8.0479.39 ± 8.054

8 further baseline measures are reported on the registry.

08

Study locations

11 sites
  • Research Site
    Victorville, California 92395, United States
  • Research Site
    Jupiter, Florida 33458, United States
  • Research Site
    Sandy Springs, Georgia 30328, United States
  • Research Site
    Lansing, Michigan 48910, United States
  • Research Site
    Middleburg Heights, Ohio 44130, United States
  • Research Site
    Winnipeg, Manitoba R3A 1M3, Canada
  • Research Site
    Hattingen, Nordrhein-westfalen 45525, Germany
  • Research Site
    Barnsley, England S75 2EP, United Kingdom
  • Research Site
    North Shields, England NE29 8NH, United Kingdom
  • Research Site
    Suffolk, England IP4 5PD, United Kingdom
  • Research Site
    Cardiff, Wales CF14 4XN, United Kingdom
09

References and documents

Publications

  • Huizinga TWJ, Torii Y, Muniz R. Adalimumab Biosimilars in the Treatment of Rheumatoid Arthritis: A Systematic Review of the Evidence for Biosimilarity. Rheumatol Ther. 2021 Mar;8(1):41-61. doi: 10.1007/s40744-020-00259-8. Epub 2020 Dec 1. PubMed 33263165 ↗
  • Cohen S, Genovese MC, Choy E, Perez-Ruiz F, Matsumoto A, Pavelka K, Pablos JL, Rizzo W, Hrycaj P, Zhang N, Shergy W, Kaur P. Efficacy and safety of the biosimilar ABP 501 compared with adalimumab in patients with moderate to severe rheumatoid arthritis: a randomised, double-blind, phase III equivalence study. Ann Rheum Dis. 2017 Oct;76(10):1679-1687. doi: 10.1136/annrheumdis-2016-210459. Epub 2017 Jun 5. PubMed 28584187 ↗
10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 13, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01970475
Lead sponsor
Amgen
Responsible party
Sponsor
First posted
Oct 28, 2013
Start date
Oct 2013
Primary completion
Nov 2014
Completion
Nov 2014
Results posted
Dec 13, 2016
Last update
Dec 13, 2016

Study contacts

MD
study director · Amgen

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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