TYSABRI Global Observational Program in Safety
Public ClinicalTrials.gov record NCT00477113. 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
TYGRIS: TYSABRI® Global Observational Program in Safety
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The Primary objective of this study is to determine the incidence and pattern of serious infections, malignancies, and other serious adverse events (SAE) in participants with multiple sclerosis (MS) treated with Tysabri (natalizumab).
Study identification
- NCT ID
- NCT00477113
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 2,207 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- Not listed
- 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
- Dec 31, 2006
- Primary completion
- Apr 30, 2015
- Completion
- Apr 30, 2015
- Last update posted
- Jun 21, 2015
2007 – 2015
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| There may be mulitple sites in this clinical trial. Contact United BioSource Corporation | Kansas City | Missouri | 64111 | — |
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 NCT00477113, 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 21, 2015 · Synced Sep 6, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00477113 live on ClinicalTrials.gov.