Exploring the Immune Response to SARS-CoV-2 COVID-19 Vaccines in Patients With Relapsing Multiple Sclerosis (RMS) Treated With Ofatumumab

NCT ID: NCT04869358

Last Updated: 2025-05-16

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

34 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-05-27

Study Completion Date

2023-06-13

Brief Summary

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This study aimed to understand whether patients with relapsing multiple sclerosis (RMS) can mount an immune response to SARS-CoV-2 mRNA vaccines (initial vaccinations or booster vaccines) when vaccinated either before initiation of ofatumumab treatment or at least 4 weeks after commencing ofatumumab treatment.

Detailed Description

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This was a four cohort, multicenter, open-label, prospective study of 34 (optionally up to 60) patients who had relapsing multiple sclerosis (RMS) planning to undergo a SARS-CoV-2 mRNA vaccination (initial vaccinations or booster vaccines) as part of clinical routine. The maximal duration of the study for an individual patient was 22 months.

* The first cohort was RMS patients receiving SARS-CoV-2 mRNA vaccine (initial vaccinations or booster vaccines) as part of clinical routine prior to starting ofatumumab treatment.
* The second cohort was participants receiving SARS-CoV-2 mRNA vaccine (initial vaccinations or booster vaccines) as part of clinical routine while already stable on ofatumumab treatment for at least 4 weeks (since first dose).

Cohort 1a - Patients received first SARS-CoV-2 vaccination within the study prior to starting ofatumumab treatment.

Cohort 1b - Patients had already completed initial vaccination cycle and received a booster vaccine within the study prior to starting ofatumumab treatment.

Cohort 2a - Patients who received their first SARS-CoV-2 vaccination within the study while already stable on ofatumumab treatment for at least 4 weeks (since the first dose).

Cohort 2b - Patients who had already completed their initial vaccination cycle and received a booster vaccine within the study while already stable on ofatumumab treatment for at least 4 weeks (since the first dose).

Development of SARS-CoV-2 specific T-cells and functional anti-SARS-CoV-2 antibodies were investigated for up to 18 months after the participants' vaccination.

Conditions

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Relapsing Multiple Sclerosis

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Cohort 1a

Patients received first SARS-CoV-2 vaccination within the study prior to starting ofatumumab treatment.

Group Type EXPERIMENTAL

Ofatumumab

Intervention Type DRUG

Ofatumumab 20 mg s.c. on days 1, 7, 14, week 4 and every 4 weeks thereafter

Cohort 1b

Patients had already completed initial vaccination cycle and received a booster vaccine within the study prior to starting ofatumumab treatment.

Group Type EXPERIMENTAL

Ofatumumab

Intervention Type DRUG

Ofatumumab 20 mg s.c. on days 1, 7, 14, week 4 and every 4 weeks thereafter

Cohort 2a

Patients who received their first SARS-CoV-2 vaccination within the study while already stable on ofatumumab treatment for at least 4 weeks (since the first dose).

Group Type EXPERIMENTAL

Ofatumumab

Intervention Type DRUG

Ofatumumab 20 mg s.c. on days 1, 7, 14, week 4 and every 4 weeks thereafter

Cohort 2b

Patients who had already completed their initial vaccination cycle and received a booster vaccine within the study while already stable on ofatumumab treatment for at least 4 weeks (since the first dose).

Group Type EXPERIMENTAL

Ofatumumab

Intervention Type DRUG

Ofatumumab 20 mg s.c. on days 1, 7, 14, week 4 and every 4 weeks thereafter

Interventions

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Ofatumumab

Ofatumumab 20 mg s.c. on days 1, 7, 14, week 4 and every 4 weeks thereafter

Intervention Type DRUG

Other Intervention Names

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OMB157

Eligibility Criteria

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Inclusion Criteria

* Relapsing Multiple Sclerosis (RMS) diagnosis
* eligible for ofatumumab treatment
* willing and eligible to receive SARS-CoV-2 mRNA vaccine

Exclusion Criteria

* known prior or current COVID-19 infection
* previous treatment with BTK inhibitor or anti-CD20 therapy other than ofatumumab
* no previous vaccination with a non-modRNA SARS-CoV-2 vaccine.
Minimum Eligible Age

18 Years

Maximum Eligible Age

100 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Novartis Pharmaceuticals

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Novartis Investigative Site

Berlin, , Germany

Site Status

Novartis Investigative Site

Bielefeld, , Germany

Site Status

Novartis Investigative Site

Dresden, , Germany

Site Status

Novartis Investigative Site

Erbach im Odenwald, , Germany

Site Status

Novartis Investigative Site

Siegen, , Germany

Site Status

Novartis Investigative Site

Unterhaching, , Germany

Site Status

Countries

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Germany

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Related Links

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https://www.novctrd.com/ctrdweb/patientsummary/patientsummaries?patientSummaryId=2143

A Plain Language Trial Summary is available on www.novctrd.com

Other Identifiers

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COMB157GDE01

Identifier Type: -

Identifier Source: org_study_id

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