# BENEFIT Extension Study

> **NCT00544037** · — · COMPLETED · sponsor: **Bayer** · enrollment: 283 (actual)

## Conditions studied

- Multiple Sclerosis

## Interventions

- **DRUG:** Interferon beta-1b (Betaseron, BAY86-5046)

## Key facts

- **NCT ID:** NCT00544037
- **Lead sponsor:** Bayer
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2007-09
- **Primary completion:** 2011-01
- **Final completion:** 2011-01
- **Target enrollment:** 283 (ACTUAL)
- **Last updated:** 2012-03-05


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00544037

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00544037, "BENEFIT Extension Study". Retrieved via AI Analytics 2026-06-09 from https://api.ai-analytics.org/clinical/NCT00544037. Licensed CC0.

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