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Completed Phase 2 Interventional Results available

Treatment Interruption of Natalizumab

ClinicalTrials.gov ID: NCT01071083

Public ClinicalTrials.gov record NCT01071083. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 17, 2026, 3:20 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Randomized Treatment Interruption of Natalizumab

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This is a randomized, rater blinded trial in patients who interrupt treatment with natalizumab with or without being treated with other immunomodulatory drugs, or continue treatment with natalizumab. The main purpose of this study is to find out the following, when participants stop taking natalizumab for 24 weeks: * when MS symptoms return, and * if other drugs for MS may help control MS symptoms during the natalizumab-interruption period. This study will also explore how quickly the effects of natalizumab return after resuming natalizumab dosing.

Study identification

NCT ID
NCT01071083
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Biogen
Industry
Enrollment
175 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years to 60 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Mar 2010 (Type not available)
Primary completion
Nov 2011 (Actual)
Completion
Nov 2011 (Actual)
Last update posted
Sep 19, 2013

2010 – 2011

United States locations

U.S. sites
20
U.S. states
13
U.S. cities
18
Facility City State ZIP Site status
Research Site Cullman Alabama 35058 —
Research Site San Francisco California 94117 —
Research Site Fort Collins Colorado — —
Research Site Pompano Beach Florida 33060 —
Research Site Atlanta Georgia 30309 —
Research Site Atlanta Georgia 30327 —
Research Site Chicago Illinois 60612 —
Research Site Lake Barrington Illinois 60010 —
Research Site Des Moines Iowa 50314 —
Research Site Boston Massachusetts 2135 —
Research Site Boston Massachusetts 2215 —
Research Site Buffalo New York 14203 —
Research Site Latham New York 12110 —
Research Site Patchogue New York 11772 —
Research Site Charlotte North Carolina 28207 —
Research Site Raleigh North Carolina 27607 —
Research Site Cleveland Ohio 44195 —
Research Site Uniontown Ohio — —
Research Site Salt Lake City Utah 84103 —
Research Site Seattle Washington 98111 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 13 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01071083, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Sep 19, 2013 · Synced Oct 17, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01071083 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →