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Completed Phase 4 Interventional

Open Label Natalizumab Safety Extension Study for Subjects With Crohn's Disease

ClinicalTrials.gov ID: NCT00280956

Public ClinicalTrials.gov record NCT00280956. 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 Sep 2, 2026, 2:44 PM EDT

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

Official title

A Phase III, Multicenter, Open-Label, Long-Term Study of the Safety, Tolerability, and Efficacy of Intravenous Antegren™ (Natalizumab) in Crohn's Disease Subjects Who Have Previously Participated in Antegren Crohn's Disease Studies

Brief summary

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

The primary objective of this study is to evaluate the long-term tolerability and safety of natalizumab when administered a dose of 300 mg intravenously (IV) to subjects with Crohn's Disease who have previously participated in studies CD251, CD301, CD303, CD306, or CD307.

Study identification

NCT ID
NCT00280956
Recruitment status
Completed
Study type
Interventional
Phase
Phase 4
Lead sponsor
Biogen
Industry
Enrollment
2,000 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years and older
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
Jun 30, 2002
Primary completion
Aug 31, 2004
Completion
Aug 31, 2004
Last update posted
Jun 15, 2016

2002 – 2004

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Performed only at CD251, CD301, CD303, CD306, and CD307 sites globally. No general public enrollment. The study is managed from the office of Elan Pharmaceuticals, Inc. in San Diego California 92121

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

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00280956, 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 Jun 15, 2016 · Synced Sep 2, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00280956 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →