Long-term Follow-up Gene Therapy Study for RPGR- XLRP
Public ClinicalTrials.gov record NCT04312672. 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
Long-term Follow-up Study of Participants Following an Open Label, Multi-Centre, Phase I/II Dose Escalation Trial of a Recombinant Adeno-associated Virus Vector (AAV5- hRKp.RPGR) for Gene Therapy of Adults and Children With X-linked Retinitis Pigmentosa Owing to Defects in Retinitis Pigmentosa GTPase Regulator (RPGR)
Study identification
- NCT ID
- NCT04312672
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Lead sponsor
- Janssen Research & Development, LLC
- Industry
- Enrollment
- 42 participants
Conditions and interventions
Conditions
Interventions
- AAV5-hRKp.RPGR Biological
Biological
Eligibility (public fields only)
- Age range
- 5 Years and older
- Sex
- Male
- 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
- Jul 30, 2017
- Primary completion
- Sep 16, 2025
- Completion
- Sep 16, 2025
- Last update posted
- Jan 20, 2026
2017 – 2025
United States locations
- U.S. sites
- 3
- U.S. states
- 3
- U.S. cities
- 3
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Massachusetts Eye and Ear Infirmary | Boston | Massachusetts | 02114 | — |
| Univ of Michigan Medical Center | Ann Arbor | Michigan | 48105 | — |
| University of Pittsburgh Medical Center | Pittsburgh | Pennsylvania | 15213 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 2 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04312672, 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 Jan 20, 2026 · Synced Jul 21, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04312672 live on ClinicalTrials.gov.