# TYGRIS - ROW: TYSABRI Global Observational Program in Safety - Rest of World

> **NCT00483847** · — · COMPLETED · sponsor: **Biogen** · enrollment: 4296 (actual)

## Conditions studied

- Multiple Sclerosis

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00483847
- **Lead sponsor:** Biogen
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2006-09
- **Primary completion:** 2014-11
- **Final completion:** 2014-11
- **Target enrollment:** 4296 (ACTUAL)
- **Last updated:** 2015-04-13


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00483847

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00483847, "TYGRIS - ROW: TYSABRI Global Observational Program in Safety - Rest of World". Retrieved via AI Analytics 2026-08-11 from https://api.ai-analytics.org/clinical/NCT00483847. Licensed CC0.

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