Natural History of the Progression of X-Linked Retinitis Pigmentosa
Public ClinicalTrials.gov record NCT04926129. 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.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The objective of the study is to gain a better understanding of disease progression over time in participants with X-linked retinitis pigmentosa (XLRP).
Study identification
- NCT ID
- NCT04926129
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 201 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 7 Years and older
- Sex
- All
- 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
- Sep 13, 2017 (Actual)
- Primary completion
- Dec 16, 2022 (Actual)
- Completion
- Dec 16, 2022 (Actual)
- Last update posted
- Feb 10, 2023
2017 – 2022
United States locations
- U.S. sites
- 10
- U.S. states
- 8
- U.S. cities
- 10
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Research Site | Phoenix | Arizona | 85020 | — |
| Research Site | Los Angeles | California | 90095 | — |
| Research Site | San Francisco | California | 94143 | — |
| Research Site | Miami | Florida | 33136 | — |
| Research Site | New York | New York | 10032 | — |
| Research Site | Portland | Oregon | 97239 | — |
| Research Site | Dallas | Texas | 75231 | — |
| Research Site | Houston | Texas | 77030 | — |
| Research Site | Salt Lake City | Utah | 84132 | — |
| Research Site | Madison | Wisconsin | 53705 | — |
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 12 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04926129, 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 Feb 10, 2023 · Synced Oct 24, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT04926129 live on ClinicalTrials.gov.