Long-Term Follow-Up Gene Therapy Study for Achromatopsia CNGB3 and CNGA3
Public ClinicalTrials.gov record NCT03278873. 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 (AAV2/8-hCARp.hCNGB3 and AAV2/8-hG1.7p.coCNGA3) for Gene Therapy of Adults and Children With Achromatopsia Owing to Defects in CNGB3 or CNGA3
Study identification
- NCT ID
- NCT03278873
- Recruitment status
- Terminated
- Study type
- Observational
- Phase
- Not listed
- Lead sponsor
- MeiraGTx UK II Ltd
- Industry
- Enrollment
- 34 participants
Conditions and interventions
Conditions
Interventions
- Prior exposure to AAV-CNGA3 or AAV-CNGB3 Biological
Biological
Eligibility (public fields only)
- Age range
- 3 Years to 100 Years
- 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
- Jun 28, 2017
- Primary completion
- Apr 3, 2024
- Completion
- Apr 3, 2024
- Last update posted
- Jun 10, 2025
2017 – 2024
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Kellogg Eye Center | Ann Arbor | Michigan | 48105 | — |
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 1 non-U.S. site.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03278873, 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 Jun 10, 2025 · Synced Jul 21, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03278873 live on ClinicalTrials.gov.