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Completed Phase 3 Interventional

Safety and Efficacy of Natalizumab in the Treatment of Multiple Sclerosis

ClinicalTrials.gov ID: NCT00027300

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This page only displays public information reproduced from the official ClinicalTrials.gov record NCT00027300. It adds no medical advice, opinions, or eligibility judgments. The official record remains the source of truth for eligibility criteria, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Nov 15, 2026, 7:27 AM EST

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Official title

A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group, Multicenter Study to Determine the Safety and Efficacy of Natalizumab in Subjects With Relapsing-Remitting Multiple Sclerosis

Brief summary

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

The purpose of this study is to determine the safety and efficacy of natalizumab in the treatment of individuals who have been diagnosed with relapsing remitting multiple sclerosis (MS). It is hoped that natalizumab will prevent certain types of white blood cells from moving out of the bloodstream into organs, including the brain, that are being damaged by autoimmune disease (a disease in which the body's own immune system attacks certain organs). These white blood cells are thought to cause inflammation that can result in lesions (small areas of damage) in the brain. These lesions are thought to be the cause of relapses and disability in MS.

Study identification

NCT ID
NCT00027300
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Biogen
Industry
Enrollment
900 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years to 50 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
Nov 2001 (Type not available)
Primary completion
Nov 2004 (Actual)
Completion
Jan 2005 (Actual)
Last update posted
Jan 9, 2017

2001 – 2005

United States locations

U.S. sites
14
U.S. states
13
U.S. cities
14
Facility City State ZIP Site status
Mayo Clinic Scottsdale Scottsdale Arizona 85259 —
East Bay Region Associates in Neurology Berkeley California 94705 —
UC Davis School of Medicine, Department of Neurology Davis California 95817-2307 —
Yale University School of Medicine, Department of Neurology New Haven Connecticut 06510 —
University of Miami School of Medicine, Department of Neurology Miami Florida 33136 —
University of Kansas Medical Center, Department of Neurology Kansas City Kansas 66160 —
Michigan Institute for Neurological Disorders Farmington Hills Michigan 48335 —
University of Nebraska Medical Center Omaha Nebraska 68198 —
Gimbel MS Center Teaneck New Jersey 07666 —
CMRRC Albuquerque New Mexico 87131 —
Oregon Health Sciences University, Department of Neurology Portland Oregon 97201-3098 —
Lehigh Valley Hospital, Neurosciences Research Allentown Pennsylvania 18103 —
Texas Neurology Dallas Texas 75214 —
University of Washington MS Research Center Seattle Washington 98195 —

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 39 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00027300, 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 Jan 9, 2017 · Synced Nov 15, 2026

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