Trial Outcomes & Findings for Phase 1/2 Safety and Efficacy Study of AAV-RPE65 Vector to Treat Leber Congenital Amaurosis (NCT NCT00749957)

NCT ID: NCT00749957

Last Updated: 2017-12-28

Results Overview

Recruitment status

COMPLETED

Study phase

PHASE1/PHASE2

Target enrollment

12 participants

Primary outcome timeframe

2 years

Results posted on

2017-12-28

Participant Flow

Twelve subjects with DNA sequence-confirmed mutations in RPE65 were enrolled, 10 at the Casey Eye Institute and 2 at the University of Massachusetts, between June 2009 and September 2012.

Participant milestones

Participant milestones
Measure
Lower Dose of rAAV2-CB-hRPE65
Subjects at least 6 y/o administered a lower dose of the rAAV2-CB-hRPE65 vector by subretinal injection
Higher Dose of rAAV2-CB-hRPE65
Subjects at least 6 y/o administered a higher dose of the rAAV2-CB-hRPE65 vector by subretinal injection
Overall Study
STARTED
6
6
Overall Study
COMPLETED
6
6
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Phase 1/2 Safety and Efficacy Study of AAV-RPE65 Vector to Treat Leber Congenital Amaurosis

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Lower Dose of rAAV2-CB-hRPE65
n=6 Participants
Subjects at least 6 y/o treated with a lower dose of the rAAV2-CB-hRPE65 vector by subretinal injection
Higher Dose of rAAV2-CB-hRPE65
n=6 Participants
Subjects at least 6 y/o treated with a higher dose of the rAAV2-CB-hRPE65 vector by subretinal injection
Total
n=12 Participants
Total of all reporting groups
Age, Categorical
<=18 years
3 Participants
n=5 Participants
1 Participants
n=7 Participants
4 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
3 Participants
n=5 Participants
5 Participants
n=7 Participants
8 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Continuous
22 years
n=5 Participants
31 years
n=7 Participants
31 years
n=5 Participants
Sex: Female, Male
Female
2 Participants
n=5 Participants
4 Participants
n=7 Participants
6 Participants
n=5 Participants
Sex: Female, Male
Male
4 Participants
n=5 Participants
2 Participants
n=7 Participants
6 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
n=5 Participants
3 Participants
n=7 Participants
5 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
4 Participants
n=5 Participants
3 Participants
n=7 Participants
7 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
2 Participants
n=7 Participants
2 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
2 Participants
n=5 Participants
0 Participants
n=7 Participants
2 Participants
n=5 Participants
Race (NIH/OMB)
White
4 Participants
n=5 Participants
4 Participants
n=7 Participants
8 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
United States
6 participants
n=5 Participants
6 participants
n=7 Participants
12 participants
n=5 Participants

PRIMARY outcome

Timeframe: 2 years

Outcome measures

Outcome measures
Measure
Lower Dose of rAAV2-CB-hRPE65
n=6 Participants
Subjects at least 6 y/o treated with a lower dose of the rAAV2-CB-hRPE65 vector by subretinal injection
Higher Dose of rAAV2-CB-hRPE65
n=6 Participants
Subjects at least 6 y/o treated with a higher dose of the rAAV2-CB-hRPE65 vector by subretinal injection
Number of Participants Experiencing Ocular or Non-ocular Adverse Events
6 participants
6 participants

SECONDARY outcome

Timeframe: 2 years

Improvement in the central 30 degree visual field, measured by static perimetry, at one or more time points after treatment, that was greater than the limit of agreement for baseline values .

Outcome measures

Outcome measures
Measure
Lower Dose of rAAV2-CB-hRPE65
n=6 Participants
Subjects at least 6 y/o treated with a lower dose of the rAAV2-CB-hRPE65 vector by subretinal injection
Higher Dose of rAAV2-CB-hRPE65
n=6 Participants
Subjects at least 6 y/o treated with a higher dose of the rAAV2-CB-hRPE65 vector by subretinal injection
Participants With Changes in Visual Fields
3 participants
3 participants

SECONDARY outcome

Timeframe: 2 years

Increase in BCVA of 7 or more letters at Year 2 visit compared to average baseline value

Outcome measures

Outcome measures
Measure
Lower Dose of rAAV2-CB-hRPE65
n=6 Participants
Subjects at least 6 y/o treated with a lower dose of the rAAV2-CB-hRPE65 vector by subretinal injection
Higher Dose of rAAV2-CB-hRPE65
n=6 Participants
Subjects at least 6 y/o treated with a higher dose of the rAAV2-CB-hRPE65 vector by subretinal injection
Participants With Changes in Best Corrected Visual Acuity
2 participants
1 participants

Adverse Events

Lower Dose of rAAV2-CB-hRPE65

Serious events: 0 serious events
Other events: 6 other events
Deaths: 0 deaths

Higher Dose of rAAV2-CB-hRPE65

Serious events: 0 serious events
Other events: 6 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Lower Dose of rAAV2-CB-hRPE65
n=6 participants at risk
Subjects at least 6 y/o administered a lower dose of the rAAV2-CB-hRPE65 vector by subretinal injection
Higher Dose of rAAV2-CB-hRPE65
n=6 participants at risk
Subjects at least 6 y/o administered a higher dose of the rAAV2-CB-hRPE65 vector by subretinal injection
Eye disorders
subconjunctival hemorrhage
50.0%
3/6 • Number of events 3 • 2 years
83.3%
5/6 • Number of events 5 • 2 years
Eye disorders
ocular hyperemia
50.0%
3/6 • Number of events 3 • 2 years
16.7%
1/6 • Number of events 1 • 2 years
Eye disorders
eye inflammation
0.00%
0/6 • 2 years
50.0%
3/6 • 2 years
Eye disorders
eye irritation
16.7%
1/6 • Number of events 1 • 2 years
16.7%
1/6 • Number of events 1 • 2 years
Eye disorders
eye pain
16.7%
1/6 • Number of events 2 • 2 years
0.00%
0/6 • 2 years
Eye disorders
eye pruritus
0.00%
0/6 • 2 years
33.3%
2/6 • Number of events 2 • 2 years

Additional Information

Chief Medical Officer

Applied Genetic Technologies Corporation

Phone: 386-462-2204

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place