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CompletedNCT03277261ULTIMATE 1Updated Dec 6, 2021Results posted

Study to Assess the Efficacy and Safety of Ublituximab in Participants With Relapsing Forms of Multiple Sclerosis (RMS) ( ULTIMATE 1 )

A Phase 3 interventional study of Ublituximab and Teriflunomide in Relapsing Multiple Sclerosis (RMS), sponsored by TG Therapeutics, Inc.. Completed at 14 sites in United States. Open to participants aged 18 Years to 55 Years. Per ClinicalTrials.gov, last updated 2021-12-06.

Sponsored by TG Therapeutics, Inc. · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
549
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
01

Study summary

This study determines the Annualized Relapse Rate (ARR) in participants with RMS after 96 weeks (approximately 2 years) treatment with intravenous (IV) infusion of ublituximab/oral placebo compared to 14 mg oral teriflunomide/IV placebo.

02

Conditions studied

  • Relapsing Multiple Sclerosis (RMS)
03

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • 18-55 age
  • Diagnosis of RMS (McDonald criteria 2010)
  • Active disease
  • Expanded disability status scale (EDSS) 0-5.5 (inclusive) at screening

Exclusion criteria

Exclusion Criteria:

  • Treatment with prior Anti-cluster of differentiate 20 (CD20) or other B cell directed treatment
  • Treatment with the following therapies at any time prior to randomization: alemtuzumab, natalizumab, teriflunomide, leflunomide and stem cell transplantation
  • Diagnosed with Primary Progressive MS (PPMS)
  • Pregnant or nursing
04

Study design

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

Study arms

  • Experimental
    Ublituximab + Oral Placebo

    Participants were administered ublituximab 150 milligrams (mg), intravenous (IV) infusion over 4 hours (h) on Day 1 followed by 450 mg over 1 h on Days 15, 168, 336 and 504 (Week 72) along with the oral placebo once daily (QD) from Day 1 up to the last day of Week 95.

    Biological: Ublituximab · Drug: Oral Placebo

  • Active comparator
    Teriflunomide + IV Placebo

    Participants were administered teriflunomide 14 mg tablet, orally, QD from Day 1 up to the last day of Week 95 along with the placebo IV infusion on Days 1, 15, 168, 336 and 504 (Week 72).

    Drug: Teriflunomide · Drug: IV Placebo

Interventions

  • BiologicalUblituximab

    Administered as an IV infusion.

    Also known as: TG-1101

  • DrugTeriflunomide

    Film-coated tablets administered orally.

  • DrugOral Placebo

    Administered orally.

  • DrugIV Placebo

    Administered as an IV infusion.

05

What researchers measure

Primary outcomes

  1. Annualized Relapse Rate (ARR)

    ARR is defined as the number of Independent Relapse Adjudication Panel (IRAP)-confirmed relapses per participant year. The estimate of ARR for a treatment group is the total number of relapses for participants in the respective treatment group divided by the sum of treatment duration for participants in that specific treatment group.

    Time frame: Up to 96 weeks

Secondary outcomes

  1. Total Number of Gadolinium (Gd)-Enhancing T1-Lesions Per Magnetic Resonance Imaging (MRI) Scan Per Participant

    The total number of Gd-enhancing T1-lesions were calculated as the sum of the individual number of lesions at Weeks 12, 24, 48, and 96, divided by the total number of MRI scans of the brain.

    Time frame: Weeks 12, 24, 48, and 96

  2. Total Number of New and Enlarging T2 Hyperintense Lesions (NELs) Per MRI Scan Per Participant

    The total number of NELs were calculated as the sum of the individual number of lesions at Weeks 24, 48, and 96, divided by the total number of MRI scans of the brain.

    Time frame: Weeks 24, 48, and 96

  3. Time to Confirmed Disability Progression (CDP) for at Least 12 Weeks

    12-week CDP is defined as an increase in EDSS at least 1 point higher than the baseline EDSS if the baseline EDSS is ≤5.5 or at least 0.5 higher than the baseline EDSS if the baseline EDSS is \>5.5. The EDSS is based on a standard neurological examination, (pyramidal, cerebellar, brainstem, sensory, bowel and bladder, visual, and cerebral) and ambulation function system assessments. The EDSS disability scale ranges in 0.5-point steps from 0 (normal) to 10 (death) where higher scores indicate disability. The time to onset of 12-week CDP is the time to progression to the EDSS change defined above.

    Time frame: Up to Week 96

  4. Percentage of Participants With No Evidence of Disease Activity (NEDA)

    A participant with NEDA is defined as a participant without relapses confirmed by the IRAP, without MRI activities (no T1 Gd+ lesions and no new/enlarging T2 lesions), and no 12-week CDP. Any evidence of disease activity from Week 24 to Week 96 was counted as not reaching NEDA. Any evidence of disease activity before Week 24 was not counted.

    Time frame: Week 24 up to Week 96

  5. Percentage of Participants With Impaired Symbol Digit Modalities Test (SDMT)

    The SDMT involves a simple substitution task using a reference key, the examinee has 90 seconds to pair specific numbers with given geometric figures. Responses are done verbally. The administration time is approximately 5 minutes. The total SDMT score for each visit ranging from 0-110 is defined as the total number of correct answers reported in the case report form (CRF), where high scores indicate better outcome. Impaired SDMT is defined as a decrease from baseline of at least 4 points at any post-baseline assessment up to the Week 96 visit.

    Time frame: Baseline up to Week 96

  6. Percent Change From Baseline in Brain Volume

    Time frame: Baseline up to Week 96

  7. Percentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs)

    An adverse event (AE) is any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporarily associated with the use of a medicinal product, whether or not considered related to the medicinal product. A Serious AE is defined as any untoward medical occurrence that: results in death, is immediately life-threatening, requires in-patient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, and/or causes a congenital anomaly/birth defect. A TEAE is an AE that starts or worsens after receiving study drug.

    Time frame: From the first dose of study drug through the end of the study (up to approximately 116 weeks)

06

Results

Posted Dec 6, 2021

Participant flow

A total of 549 participants were enrolled across investigative sites in Belarus, Spain, the United Kingdom, Georgia, Poland, Russia, Serbia, Ukraine, and the United States from 19 September 2017 to 6 November 2020.

Participant flow — Overall Study
MilestoneUblituximab + Oral PlaceboTeriflunomide + IV Placebo
Started274275
Completed240252
Not completed3423
Withdrew: Adverse event171
Withdrew: Participant withdrawal of consent615
Withdrew: Investigator / sponsor decision42
Withdrew: Pregnancy20
Withdrew: Lost to follow-up22
Withdrew: Lack of efficacy22
Withdrew: Other-alternative treatment/unspecified reasons11

Outcome measures

PrimaryAnnualized Relapse Rate (ARR)

ARR is defined as the number of Independent Relapse Adjudication Panel (IRAP)-confirmed relapses per participant year. The estimate of ARR for a treatment group is the total number of relapses for participants in the respective treatment group divided by the sum of treatment duration for participants in that specific treatment group.

Time frame:
Up to 96 weeks
Reported as:
Least squares mean · relapses per participant-years
Annualized Relapse Rate (ARR)
relapses per participant-yearsUblituximab + Oral PlaceboTeriflunomide + IV Placebo
Annualized Relapse Rate (ARR)0.076 (0.042 to 0.138)0.188 (0.124 to 0.283)
Statistical analysis
  • Ublituximab + Oral Placebo vs Teriflunomide + IV Placebo · Negative Binomial Model · p = <0.0001 (GEE (Generalized Estimating Equation) model for the relapse count per participant with logarithmic link function, treatment, region, and baseline Expanded Disability Status Scale (EDSS) strata as covariates and log (years of treatment) as offset.) · Rate ratio (ublituximab/teriflunomide): 0.406 · 95% CI 0.268 to 0.615
SecondaryTotal Number of Gadolinium (Gd)-Enhancing T1-Lesions Per Magnetic Resonance Imaging (MRI) Scan Per Participant

The total number of Gd-enhancing T1-lesions were calculated as the sum of the individual number of lesions at Weeks 12, 24, 48, and 96, divided by the total number of MRI scans of the brain.

Time frame:
Weeks 12, 24, 48, and 96
Reported as:
Least squares mean · lesions per scan per participant
Total Number of Gadolinium (Gd)-Enhancing T1-Lesions Per Magnetic Resonance Imaging (MRI) Scan Per Participant
lesions per scan per participantUblituximab + Oral PlaceboTeriflunomide + IV Placebo
Total Number of Gadolinium (Gd)-Enhancing T1-Lesions Per Magnetic Resonance Imaging (MRI) Scan Per Participant0.016 (0.008 to 0.032)0.491 (0.355 to 0.679)
Statistical analysis
  • Ublituximab + Oral Placebo vs Teriflunomide + IV Placebo · Negative Binomial Model · p = <0.0001 (GEE model for the relapse count per participant with logarithmic link function, treatment, region, and baseline EDSS strata as covariates and log (years of treatment) as offset.) · Rate ratio (ublituximab/teriflunomide): 0.033 · 95% CI 0.019 to 0.058
SecondaryTotal Number of New and Enlarging T2 Hyperintense Lesions (NELs) Per MRI Scan Per Participant

The total number of NELs were calculated as the sum of the individual number of lesions at Weeks 24, 48, and 96, divided by the total number of MRI scans of the brain.

Time frame:
Weeks 24, 48, and 96
Reported as:
Least squares mean · lesions per scan per participant
Total Number of New and Enlarging T2 Hyperintense Lesions (NELs) Per MRI Scan Per Participant
lesions per scan per participantUblituximab + Oral PlaceboTeriflunomide + IV Placebo
Total Number of New and Enlarging T2 Hyperintense Lesions (NELs) Per MRI Scan Per Participant0.213 (0.144 to 0.316)2.789 (2.136 to 3.643)
Statistical analysis
  • Ublituximab + Oral Placebo vs Teriflunomide + IV Placebo · Negative Binomial Model · p = <0.0001 (GEE model for the relapse count per participant with logarithmic link function, treatment, region, and baseline EDSS strata as covariates and log (years of treatment) as offset.) · Rate ratio (ublituximab/teriflunomide): 0.076 · 95% CI 0.056 to 0.104
SecondaryTime to Confirmed Disability Progression (CDP) for at Least 12 Weeks

12-week CDP is defined as an increase in EDSS at least 1 point higher than the baseline EDSS if the baseline EDSS is ≤5.5 or at least 0.5 higher than the baseline EDSS if the baseline EDSS is \>5.5. The EDSS is based on a standard neurological examination, (pyramidal, cerebellar, brainstem, sensory, bowel and bladder, visual, and cerebral) and ambulation function system assessments. The EDSS disability scale ranges in 0.5-point steps from 0 (normal) to 10 (death) where higher scores indicate disability. The time to onset of 12-week CDP is the time to progression to the EDSS change defined above.

Time frame:
Up to Week 96
Reported as:
Median · weeks
Time to Confirmed Disability Progression (CDP) for at Least 12 Weeks
weeksUblituximab + Oral PlaceboTeriflunomide + IV Placebo
Time to Confirmed Disability Progression (CDP) for at Least 12 WeeksNA (NA to NA)NA (NA to NA)
SecondaryPercentage of Participants With No Evidence of Disease Activity (NEDA)

A participant with NEDA is defined as a participant without relapses confirmed by the IRAP, without MRI activities (no T1 Gd+ lesions and no new/enlarging T2 lesions), and no 12-week CDP. Any evidence of disease activity from Week 24 to Week 96 was counted as not reaching NEDA. Any evidence of disease activity before Week 24 was not counted.

Time frame:
Week 24 up to Week 96
Reported as:
Number · percentage of participants
Percentage of Participants With No Evidence of Disease Activity (NEDA)
percentage of participantsUblituximab + Oral PlaceboTeriflunomide + IV Placebo
Percentage of Participants With No Evidence of Disease Activity (NEDA)44.615.0
Statistical analysis
  • Ublituximab + Oral Placebo vs Teriflunomide + IV Placebo · Regression, Logistic · p = <0.0001 (Logistic regression model with treatment, region, baseline EDSS strata and log transformed baseline MRI lesion counts (T1 unenhancing, T2, Gd enhancing) as covariates.) · Odds ratio (ublituximab/teriflunomide): 5.442 · 95% CI 3.536 to 8.375
SecondaryPercentage of Participants With Impaired Symbol Digit Modalities Test (SDMT)

The SDMT involves a simple substitution task using a reference key, the examinee has 90 seconds to pair specific numbers with given geometric figures. Responses are done verbally. The administration time is approximately 5 minutes. The total SDMT score for each visit ranging from 0-110 is defined as the total number of correct answers reported in the case report form (CRF), where high scores indicate better outcome. Impaired SDMT is defined as a decrease from baseline of at least 4 points at any post-baseline assessment up to the Week 96 visit.

Time frame:
Baseline up to Week 96
Reported as:
Number · percentage of participants
Percentage of Participants With Impaired Symbol Digit Modalities Test (SDMT)
percentage of participantsUblituximab + Oral PlaceboTeriflunomide + IV Placebo
Percentage of Participants With Impaired Symbol Digit Modalities Test (SDMT)29.231.8
Statistical analysis
  • Ublituximab + Oral Placebo vs Teriflunomide + IV Placebo · Logistic Regression · p = =0.4669 (Logistic regression model with treatment, region, baseline EDSS strata, and log-transformed baseline MRI counts (T1 unenhancing, T2, Gd enhancing) as covariates.) · Odds ratio (ublituximab/teriflunomide): 0.872 · 95% CI 0.603 to 1.261
SecondaryPercent Change From Baseline in Brain Volume
Time frame:
Baseline up to Week 96
Reported as:
Least squares mean · percent change
Percent Change From Baseline in Brain Volume
percent changeUblituximab + Oral PlaceboTeriflunomide + IV Placebo
Percent Change From Baseline in Brain Volume-0.197 (-0.228 to -0.166)-0.125 (-0.155 to -0.095)
Statistical analysis
  • Ublituximab + Oral Placebo vs Teriflunomide + IV Placebo · Mixed Model Repeated Measures (MMRM) · p = <0.0001 (The model includes treatment, region, baseline EDSS strata, visit, treatment-by-visit interaction, and baseline volume (cube root transformed) as covariates and an unstructured covariance matrix.) · Least squares mean difference: -0.072 · 95% CI -0.107 to -0.036
SecondaryPercentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs)

An adverse event (AE) is any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporarily associated with the use of a medicinal product, whether or not considered related to the medicinal product. A Serious AE is defined as any untoward medical occurrence that: results in death, is immediately life-threatening, requires in-patient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, and/or causes a congenital anomaly/birth defect. A TEAE is an AE that starts or worsens after receiving study drug.

Time frame:
From the first dose of study drug through the end of the study (up to approximately 116 weeks)
Reported as:
Number · percentage of participants
Percentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs)
percentage of participantsUblituximab + Oral PlaceboTeriflunomide + IV Placebo
TEAEs86.189.1
TESAEs11.46.9

Adverse events

Collected over From the first dose of study drug through the end of the study (up to approximately 116 weeks). Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Ublituximab + Oral Placebo2/274 (0.7%)31/273 (11.4%)197/273 (72.2%)
Teriflunomide + IV Placebo0/275 (0%)19/275 (6.9%)181/275 (65.8%)
Most frequent serious events
Showing 10 of 48
Most frequent serious events
EventUblituximab + Oral PlaceboTeriflunomide + IV Placebo
Neurological symptomNervous system disorders1/2734/275
PneumoniaInfections and infestations3/2730/275
COVID-19 pneumoniaInfections and infestations2/2731/275
Central nervous system enteroviral infectionInfections and infestations2/2730/275
Urinary tract infectionInfections and infestations0/2732/275
NeutropeniaBlood and lymphatic system disorders1/2730/275
Pancreatitis chronicGastrointestinal disorders1/2730/275
Anaphylactic reactionImmune system disorders1/2730/275
HypersensitivityImmune system disorders1/2730/275
AppendicitisInfections and infestations1/2730/275
Most frequent other events
Showing 10 of 21
Most frequent other events
EventUblituximab + Oral PlaceboTeriflunomide + IV Placebo
HeadacheNervous system disorders84/27359/275
NasopharyngitisInfections and infestations34/27344/275
PyrexiaGeneral disorders41/27313/275
AlopeciaSkin and subcutaneous tissue disorders6/27336/275
Lymphocyte count decreasedInvestigations33/2738/275
Back painMusculoskeletal and connective tissue disorders16/27330/275
NauseaGastrointestinal disorders29/27315/275
LymphopeniaBlood and lymphatic system disorders27/2734/275
DiarrhoeaGastrointestinal disorders19/27326/275
HypertensionVascular disorders12/27323/275

Baseline characteristics

Intention-to-Treat (ITT) population consisted of all randomized participants.

Age, Continuous
Age, Continuous(years)Ublituximab + Oral PlaceboTeriflunomide + IV PlaceboTotal
Mean36.3 ± 8.4837.0 ± 9.6236.7 ± 9.07
Sex: Female, Male
Sex: Female, Male(Participants)Ublituximab + Oral PlaceboTeriflunomide + IV PlaceboTotal
Female167180347
Male10795202
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Ublituximab + Oral PlaceboTeriflunomide + IV PlaceboTotal
Hispanic or Latino729
Not Hispanic or Latino263267530
Unknown or Not Reported4610
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)Ublituximab + Oral PlaceboTeriflunomide + IV PlaceboTotal
Race — Black or African American6612
Race — White267267534
Race — Native Hawaiian or Other Pacific Islander101
Race — Other022
07

Study locations

14 sites
  • TG Therapeutics RMS Investigational Trial Site
    Carlsbad, California 92001, United States
  • TG Therapeutics RMS Investigational Trial Site
    Long Beach, California 90808, United States
  • TG Therapeutics RMS Investigational Trial Site
    Pasadena, California 91105, United States
  • TG Therapeutics RMS Investigational Trial Site
    Stanford, California 94305, United States
  • TG Therapeutics RMS Investigational Trial Site
    Miami, Florida 33136, United States
  • TG Therapeutics RMS Investigational Trial Site
    Northbrook, Illinois 60062, United States
  • TG Therapeutics RMS Investigational Trial Site
    Kansas City, Kansas 66160, United States
  • TG Therapeutics RMS Investigational Trial Site
    Detroit, Michigan 48201, United States
  • TG Therapeutics RMS Investigational Trial Site
    Amherst, New York 14226, United States
  • TG Therapeutics RMS Investigational Trial Site
    Westerville, Ohio 43081, United States
  • TG Therapeutics RMS Investigational Trial Site
    Franklin, Tennessee 37064, United States
  • TG Therapeutics RMS Investigational Trial Site
    Knoxville, Tennessee 37922, United States
  • TG Therapeutics RMS Investigational Trial Site
    Dallas, Texas 75246, United States
  • TG Therapeutics RMS Investigational Site
    Round Rock, Texas 78681, United States
08

References and documents

Publications

  • Steinman L, Fox E, Hartung HP, Alvarez E, Qian P, Wray S, Robertson D, Huang D, Selmaj K, Wynn D, Cutter G, Mok K, Hsu Y, Xu Y, Weiss MS, Bosco JA, Power SA, Lee L, Miskin HP, Cree BAC; ULTIMATE I and ULTIMATE II Investigators. Ublituximab versus Teriflunomide in Relapsing Multiple Sclerosis. N Engl J Med. 2022 Aug 25;387(8):704-714. doi: 10.1056/NEJMoa2201904. PubMed 36001711 ↗

Study documents

  • Study protocol · Sep 4, 2020
  • Statistical analysis plan · Sep 4, 2020

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: Undecided — Data will be shared after study completion via publication.

09

Registry details

Key details

Study ID
NCT03277261
Lead sponsor
TG Therapeutics, Inc.
Responsible party
Sponsor
First posted
Sep 11, 2017
Start date
Sep 19, 2017
Primary completion
Jul 23, 2020
Completion
Nov 6, 2020
Results posted
Dec 6, 2021
Last update
Dec 6, 2021

Oversight

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

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