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Massive MS registry study probes Long-Term safety of common drugs

NCT ID NCT05767736

Knowledge-focused Sponsor: Biogen Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at the long-term safety of two multiple sclerosis (MS) medications, Vumerity and Tecfidera, by analyzing data from over 10,000 patients in large MS registries. The goal is to track serious side effects, including infections and cancer, and compare them to other MS treatments. No new treatments are given; it simply observes existing data to better understand risks.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 10,500 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jun 2024

Expected to finish

Dec 2032

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Participants with MS who are treated with Vumerity, Tecfidera, or other selected DMTs (teriflunomide, beta-interferons, or glatiramer acetate) at the initiation of the treatment and participating in Big Multiple Sclerosis Data (BMSD) network registry.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Key Inclusion Criteria: \- Participants with MS treated with at least 1 dose of Vumerity, Tecfidera, or other selected DMTs (teriflunomide, beta-interferons, or glatiramer acetate), and whose data are captured in the BMSD network will be included in the study. Key Exclusion Criteria: \- None NOTE: Other protocol defined Inclusion/Exclusion criteria may apply

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Conditions

The condition(s) this trial relates to.

multiple sclerosis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Multiple sclerosis

Contacts and locations

Locations

  • Research Site

    Cambridge, Massachusetts, 02142, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.