Phase 4
N=99
Study of Efficacy and Safety of Ofatumumab in Relapsing Multiple Sclerosis (RMS) Patients in China
Relapsing Multiple Sclerosis
Bottom Line
View on ClinicalTrials.gov: NCT05199571 ↗Enrolled (actual)
99
Serious AEs
0.0%
Results posted
Nov 2025
Primary outcome: Primary: Adjusted Annualized Relapse Rate (ARR) Based on Confirmed Relapses — 0.05 relapses per participant-year
Study Design & Population
- Study type
- Interventional
- Phase
- Phase 4
- Interventions
- Ofatumumab (Biological)
- Age
- Adult · 18+ yrs
- Sex
- All
- Sponsor
- Novartis Pharmaceuticals
- Primary completion
- Feb 2025
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Adjusted Annualized Relapse Rate (ARR) Based on Confirmed Relapses |
0.05 | — |
| SECONDARY Number of Adverse Events and Serious Adverse Events |
69; 0; 52; 0; 3 | — |
| SECONDARY Number of Gadolinium (Gd)-Enhancing T1 Lesions Per MRI Scan |
0.04 | — |
| SECONDARY Annualized Rate of New or Enlarging T2 Lesions |
1.95; 0.21 | — |
| SECONDARY Change in T2 Lesion Volume Relative to Baseline |
-0.03; -0.32 | — |
| SECONDARY Percentage Change in T2 Lesion Volume Relative to Baseline |
1.50; -1.88 | — |
Summary
The purpose of this study was to evaluate the efficacy and safety of ofatumumab s.c. in adult participants with relapsing multiple sclerosis (RMS) in China.
Eligibility Criteria
Inclusion Criteria
- Male or female Chinese aged 18-55 years (inclusive) at their enrollment of the study (signing the study consent form).
- Clinical definite diagnosis of RMS according to the 2017 Revised McDonald criteria (Thompson et al 2018, and the documentation prior to their enrollment to the study (signing the study consent form) of:
- Two documented relapses during the past 2 years, or
- One documented relapse during the last year, or
- A positive Gd-enhancing MRI scan during the year prior to Screening. Note: Screening MRI scan may be used if no positive Gd-enhancing scan exists from prior year.
- Disability status with an EDSS score of 0 - 5.5 (inclusive) at Screening.
- Neurologically stable within 1 month prior to both Screening and Baseline (including no MS relapse in this period).
Exclusion Criteria
- Participants with primary progressive MS (PPMS) or secondary progressive MS (SPMS) without disease activity
- Participants meeting criteria for neuromyelitis optica spectrum disorder (NMOSD)
- Pregnant or nursing (lactating) women
- Women of child-bearing potential unless using effective methods of contraception while taking study treatment and for at least 6 months after stopping medication
- Participants with an active chronic disease of the immune system other than MS
- Participants with neurological findings consistent with PML or confirmed PML
- Participants with active hepatitis B disease
- Participants with active systemic infections (including but not limited to active COVID-19 infection) or known to have AIDS or to test positive for HIV antibody at Screening
- Participants at high risk of developing or having reactivation of syphilis or tuberculosis
- Have received any live or live-attenuated vaccines within four weeks prior to first study drug administration
- Have been treated with medications as specified or within timeframes specified in the protocol
- Any other disease or condition that could interfere with participation in the study according to the study protocol, or with the ability of the participants to cooperate and comply with the study procedures.
Data sourced from ClinicalTrials.gov (NCT05199571). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.