Safety and Efficacy of Natalizumab in the Treatment of Multiple Sclerosis
Public ClinicalTrials.gov record NCT00027300. 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.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
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
Study identification
- NCT ID
- NCT00027300
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- Biogen
- Industry
- Enrollment
- 900 participants
Conditions and interventions
Conditions
Interventions
- Natalizumab Drug
- Placebo Drug
Drug
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
- Oct 31, 2001
- Primary completion
- Oct 31, 2004
- Completion
- Dec 31, 2004
- Last update posted
- Jan 8, 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 8, 2017 · Synced Jun 25, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00027300 live on ClinicalTrials.gov.