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Virus Therapy

AAV Gene Therapy for Color Blindness

Phase 1 & 2
Waitlist Available
Research Sponsored by Applied Genetic Technologies Corp
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
At least 18 years of age for Groups 1, 2, 3, 4, 5 and 6
Male or female subjects with documented mutations in both alleles of the CNGB3 gene
Timeline
Screening 3 weeks
Treatment Varies
Follow Up 1 year
Awards & highlights

Study Summary

This trial will test a new gene therapy for achromatopsia, a condition that causes color blindness. The goal is to see if the therapy is safe and effective.

Who is the study for?
This trial is for individuals at least 18 years old (or as young as 6 for certain groups) with achromatopsia due to CNGB3 gene mutations. They should have visual acuity not better than 20/80 in the study eye and be able to perform vision tests. Women must test negative for pregnancy. Those with significant vision differences between eyes or other eye conditions that could affect results are excluded.Check my eligibility
What is being tested?
The trial is testing a new gene therapy called rAAV2tYF-PR1.7-hCNGB3, given through an injection into one eye of patients with color blindness caused by CNGB3 mutations. It's an open-label, non-randomized Phase 1/2 study focusing on safety first and then how well it works.See study design
What are the potential side effects?
As this is a Phase 1/2 study primarily assessing safety, potential side effects may include typical risks associated with subretinal injections such as inflammation, infection risk, retinal detachment or damage at the injection site.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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I am 18 years old or older.
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I have mutations in both copies of my CNGB3 gene.
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I have been diagnosed with achromatopsia.
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I am between 4 and 8 years old.
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I am at least 6 years old.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~1 year
This trial's timeline: 3 weeks for screening, Varies for treatment, and 1 year for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Adverse events
Secondary outcome measures
Color vision
Light aversion
Visual acuity

Trial Design

9Treatment groups
Experimental Treatment
Group I: Group 7: MTD of AGTC-401Experimental Treatment1 Intervention
Subjects 4 to 8 y/o treated with a maximum tolerated dose of rAAV2tYF-PR1/7-hCNGB3 study drug determined by Groups 1-6.
Group II: Group 6: 3.2 x 10^12 vg/mL of AGTC-401Experimental Treatment1 Intervention
Subjects at least 18 y/o treated with 3.2 x 10^12 vg/mL of rAAV2tYF-PR1/7-hCNGB3 study drug.
Group III: Group 5a: 1.1 x 10^12 vg/mL of AGTC-401Experimental Treatment1 Intervention
Subjects 4 to 8 y/o treated with 1.1 x 10^12 vg/mL of rAAV2tYF-PR1/7-hCNGB3 study drug.
Group IV: Group 5: 1.1 x 10^12 vg/mL of AGTC-401Experimental Treatment1 Intervention
Subjects at least 18 y/o treated with 1.1 x 10^12 vg/mL of rAAV2tYF-PR1/7-hCNGB3 study drug.
Group V: Group 4a: 3.6 x 10^11 vg/mL of AGTC-401Experimental Treatment1 Intervention
Subjects 6 to 17 y/o treated with 3.6 x 10^11 vg/mL of rAAV2tYF-PR1/7-hCNGB3 study drug.
Group VI: Group 4: 3.6 x 10^11 vg/mL of AGTC-401Experimental Treatment1 Intervention
Subjects at least 18 y/o treated with 3.6 x 10^11 vg/mL of rAAV2tYF-PR1/7-hCNGB3 study drug.
Group VII: Group 3: 1.2 x 10^11 vg/mL of AGTC-401Experimental Treatment1 Intervention
Subjects at least 18 y/o treated with 1.2 x 10^11 vg/mL of rAAV2tYF-PR1/7-hCNGB3 study drug.
Group VIII: Group 2: 4.0 x 10^10 vg/mL of AGTC-401Experimental Treatment1 Intervention
Subjects at least 18 y/o treated with 4.0 x 10^10 vg/mL of rAAV2tYF-PR1/7-hCNGB3 study drug.
Group IX: Group 1: 2.0 x 10^11 vg/mL of AGTC-401Experimental Treatment1 Intervention
Subjects at least 18 y/o treated with 2.0 x 10^11 vg/mL of rAAV2tYF-PR1/7-hCNGB3 study drug.

Find a Location

Who is running the clinical trial?

Applied Genetic Technologies CorpLead Sponsor
10 Previous Clinical Trials
321 Total Patients Enrolled
National Eye Institute (NEI)NIH
546 Previous Clinical Trials
1,401,896 Total Patients Enrolled
1 Trials studying Color Blindness
35 Patients Enrolled for Color Blindness
Matt Feinsod, MDStudy DirectorApplied Genetics Technologies Corporation
3 Previous Clinical Trials
146 Total Patients Enrolled

Media Library

Color Blindness Research Study Groups: Group 4: 3.6 x 10^11 vg/mL of AGTC-401, Group 4a: 3.6 x 10^11 vg/mL of AGTC-401, Group 5: 1.1 x 10^12 vg/mL of AGTC-401, Group 5a: 1.1 x 10^12 vg/mL of AGTC-401, Group 1: 2.0 x 10^11 vg/mL of AGTC-401, Group 2: 4.0 x 10^10 vg/mL of AGTC-401, Group 3: 1.2 x 10^11 vg/mL of AGTC-401, Group 6: 3.2 x 10^12 vg/mL of AGTC-401, Group 7: MTD of AGTC-401
Color Blindness Clinical Trial 2023: AGTC-401 Highlights & Side Effects. Trial Name: NCT02599922 — Phase 1 & 2

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

Is enrollment into this trial open to participants at present?

"As per the information on clinicaltrials.gov, this trial is not currently accepting applicants even though it was last updated in July 20th 2022. Nonetheless, there are seven other medical trials that are actively seeking volunteers right now."

Answered by AI

How many locations are engaging in this research project?

"Patients for this research endeavour are being enrolled at the Cincinnati Eye Institute in Ohio, Baylor College of Medicine in Texas, and University of Wisconsin's McPherson Eye Research Institute. Additionally, 11 other sites are participating throughout the United States."

Answered by AI

Who else is applying?

What state do they live in?
Illinois
What site did they apply to?
Massachusetts Eye and Ear Infirmary
What portion of applicants met pre-screening criteria?
Met criteria
~4 spots leftby Apr 2025