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A Multicenter Study to Assess Response to Influenza Vaccine in Multiple Sclerosis Participants Treated With Ofatumumab

NCT04667117 · Status: COMPLETED · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 63

Last updated 2024-10-09

Study results available
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Summary

To assess whether participants treated with ofatumumab 20 mg subcutaneous (s.c.) administered once every 4 weeks (q4) can mount an adequate immune response to inactivated influenza vaccine as measured by humoral responses compared to participants on an iDMT.

Conditions

Interventions

BIOLOGICAL

Quadrivalent influenza vaccine

2020-2021, 2021-2022, or 2022-2023 inactivated quadrivalent influenza vaccine. Participants received the vaccine within 9 calendar days after the Screening Visit, before the Week 0 Visit occurred.

DRUG

Ofatumumab

Auto-injector containing 20 mg ofatumumab (20 mg/0.4mL) for subcutaneous (s.c.) administration. * Participants in Cohort 1 received loading doses of 20 mg ofatumumab s.c. at Weeks 2, 3, and 4 in the Investigational Period. In the open-label Extension Period, they administered the first dose of ofatumumab at Week 6 and continued monthly dosing until the final dose at Week 26. Novartis supplied participants in Cohort 1 with ofatumumab treatment. * Participants in Cohort 2 continued on their commercially prescribed ofatumumab treatment during the Investigational Period. In the open-label Extension Period, they continued to administer ofatumumab monthly until the final dose at Week 28. Cohort 2 participants in the extension could have either remained on their prescribed ofatumumab or switched to study supplied ofatumumab.

DRUG

iDMT

Participants in Cohort 3 continued on their commercially prescribed injectable disease modifying therapy (iDMT) during the Investigational Period.

Sponsors & Collaborators

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
55 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2021-01-14
Primary Completion
2023-07-06
Completion
2023-07-06
FDA Drug
Yes

Countries

  • United States

Study Locations

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Entities

Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04667117 on ClinicalTrials.gov