# An International Study to Evaluate the Real-world Effectiveness and Usage of Alprolix in Patients With Haemophilia B

> **NCT03901755** · — · COMPLETED · sponsor: **Swedish Orphan Biovitrum** · enrollment: 151 (actual)

## Conditions studied

- Hemophilia B

## Interventions

- **DRUG:** Alprolix

## Key facts

- **NCT ID:** NCT03901755
- **Lead sponsor:** Swedish Orphan Biovitrum
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2019-09-12
- **Primary completion:** 2024-03-12
- **Final completion:** 2024-03-12
- **Target enrollment:** 151 (ACTUAL)
- **Last updated:** 2025-09-29


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03901755

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03901755, "An International Study to Evaluate the Real-world Effectiveness and Usage of Alprolix in Patients With Haemophilia B". Retrieved via AI Analytics 2026-07-06 from https://api.ai-analytics.org/clinical/NCT03901755. Licensed CC0.

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