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adeno-associated virus vector AAV- CNGA3

Phase 1

Achromatopsia | Gene therapy | Other |MeiraGTx Holdings plc|Trials Updated: Dec 1, 2022

adeno-associated virus vector AAV- CNGA3 development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Nov 2018

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment11

FDA Designations

No designations recorded

adeno-associated virus vector AAV- CNGA3 clinical trials

adeno-associated virus vector AAV- CNGA3 · 1 trial · 1 indication

Phase 1 1
NCT03758404Gene Therapy for Achromatopsia (CNGA3)Achromatopsia
COMPLETED11 Analytics
PHASE1COMPLETED
Gene Therapy for Achromatopsia (CNGA3)
AchromatopsiaUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants Meeting the Primary Outcome Defined as Any of the Below Events Occurring During the 6 Weeks Following Administration, at Least Possibly Related to the Advanced Therapy Investigational Medicinal Products (ATIMP), Not Surgery Alone.
6 Weeks

The primary outcome is defined as any of the below occurring during the 6 weeks following administration, at least possibly related to the Advanced Therapy Investigational Medicinal Products (ATIMP), not surgery alone: * Reduction in visual acuity by 15 Early Treatment Diabetic Retinopathy Study (ETDRS) letters or more that fails to resolve to within 15 letters of baseline in a 4-week period once prophylactic treatment commences * Severe unresponsive inflammation * Infective endophthalmitis * Ocular malignancy * Grade III or above non-ocular Suspected Unexpected Serious Adverse Reaction (SUSAR)

Secondary Endpoints

Improvements in Visual Function as Assessed by Visual Acuity
6 Months
Improvements in Retinal Function as Assessed by Static Perimetry
6 Months
Quality of Life Measured by QoL Questionnaires in Children and Adolescents
6 Months
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Low dose adeno-associated virus (AAV) CNGA3EXPERIMENTALSubretinal administration of a single low dose AAV CNGA3
Intermediate dose adeno-associated virus (AAV) CNGA3EXPERIMENTALSubretinal administration of a single intermediate dose AAV CNGA3
High dose adeno-associated virus (AAV) CNGA3EXPERIMENTALSubretinal administration of a single high dose AAV CNGA3

Interventions

NameTypeDescription
adeno-associated virus vector AAV- CNGA3BIOLOGICALAdeno-associated virus (AAV) gene therapy for defects in CNGA3 gene
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Eligibility Criteria

Age Range3 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites2

Inclusion Criteria: * Are aged years or over * Have achromatopsia confirmed by a retinal specialist investigator Exclusion Criteria: * Are females who are pregnant or breastfeeding * Have participated in another research study involving an investigational medicinal therapy for ocular disease with...

Countries:United StatesUnited Kingdom
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Frequently asked questions about adeno-associated virus vector AAV- CNGA3

What is adeno-associated virus vector AAV-CNGA3 used for?

Adeno-associated virus vector AAV-CNGA3 is an investigational gene therapy being developed for achromatopsia, a rare inherited retinal condition. It is designed to deliver a functional copy of the CNGA3 gene to patients affected by this disorder. The therapy is administered as a single treatment and remains in clinical development.

Who is developing adeno-associated virus vector AAV-CNGA3?

Adeno-associated virus vector AAV-CNGA3 is being developed by MeiraGTx Holdings plc, a clinical-stage gene therapy company. MeiraGTx trades on the Nasdaq under the ticker symbol MGTX. The company is responsible for the research, development, and clinical evaluation of this gene therapy candidate for achromatopsia.

What phase is adeno-associated virus vector AAV-CNGA3 in?

Adeno-associated virus vector AAV-CNGA3 is in Phase 1 clinical development. The Phase 1 trial has been completed. As an investigational gene therapy, it has not been approved by the FDA or any other regulatory agency for commercial use. Further clinical studies would be required to support potential marketing approval.

What clinical trials is adeno-associated virus vector AAV-CNGA3 in?

Adeno-associated virus vector AAV-CNGA3 has been evaluated in one clinical trial, NCT03758404, titled Gene Therapy for Achromatopsia (CNGA3). This Phase 1 trial enrolled 11 participants across the United States and the United Kingdom, including patients aged 3 years and older. The study is now completed.