# LTFU for Gene Transfer Subjects With Hemophilia B

> **NCT00515710** · — · COMPLETED · sponsor: **Spark Therapeutics, Inc.** · enrollment: 4 (actual)

## Conditions studied

- Hemophilia B

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00515710
- **Lead sponsor:** Spark Therapeutics, Inc.
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2007-08
- **Primary completion:** 2017-12
- **Final completion:** 2017-12
- **Target enrollment:** 4 (ACTUAL)
- **Last updated:** 2020-05-15

## Collaborators

- [object Object]
- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00515710

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00515710, "LTFU for Gene Transfer Subjects With Hemophilia B". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT00515710. Licensed CC0.

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