Repeated Treatments of QLT091001 in Subjects With Leber Congenital Amaurosis or Retinitis Pigmentosa (Extension of Study RET IRD 01)
An Open-Label Study to Evaluate the Effects of Repeated Treatments of Oral QLT091001 on Safety and Vision Outcome in Subjects With Leber Congenital Amaurosis (LCA) or Retinitis Pigmentosa (RP) Due to Inherited Deficiencies of Retinal Pigment Epithelial 65 Protein (RPE65) or Lecithin: Retinol Acyltransferase (LRAT) (Extension of Study RET IRD 01)
1 other identifier
interventional
27
5 countries
6
Brief Summary
The purpose of this study is:
- To evaluate the safety of up to 3 additional courses of oral QLT091001 administered once daily for 7 days in subjects treated previously with a single 7-day course of QLT091001 in Study RET IRD 01
- To evaluate whether up to 3 additional courses of oral QLT091001 administered once daily for 7 days can maintain or improve visual function.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_1
Started Jan 2012
Typical duration for phase_1
6 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2012
CompletedFirst Submitted
Initial submission to the registry
January 6, 2012
CompletedFirst Posted
Study publicly available on registry
January 31, 2012
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2014
CompletedJuly 28, 2014
July 1, 2014
2.3 years
January 6, 2012
July 25, 2014
Conditions
Outcome Measures
Primary Outcomes (1)
Visual field
12 months
Secondary Outcomes (1)
Safety will be assessed by evaluating the following: adverse events, clinical laboratory tests, ECG's and vital signs
12 months
Interventions
oral QLT091001 administered once daily for 7 days
Eligibility Criteria
You may qualify if:
- Subjects with LCA or RP due to RPE65 or LRAT deficiency who received a 7-day treatment course of QLT091001 and completed the Day 30 visit in Study RET IRD 01
- Subjects who meet any one of the following criteria at least 1 month after start of the 7-day treatment course in Study RET IRD 01:
- no increase in GVF (in at least 1 eye): Follow-up GVF increased ≤20% from baseline or
- decrease in GVF (in at least 1 eye): Follow-up GVF decreased below the highest previous response by ˃20% or
- Considered a reasonable candidate for retreatment, based on the Investigator's discretion, in consultation with the independent DSMB and the Sponsor, based on regression or lack of response in other parameters of visual function (e.g., subjective reports of changes in color vision or adaptation to low light) but who do not meet other (GVF) criteria for study entry
You may not qualify if:
- Subjects with any clinically important abnormal physical finding at Screening.
- Subjects who have taken any prescription or investigational oral retinoid medication (e.g., Accutane,® Soriatane®) within 6 months of Day 0 and subjects who did not tolerate their previous oral retinoid medication will be excluded regardless of the time of last exposure.
- Subjects with liver failure, uncontrolled thyroid disease, hypersensitivity to retinoids, or hypervitaminosis A
- Subjects who have taken any supplements containing ≥10,000 IU vitamin A within 60 days of screening
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- QLT Inc.lead
Study Sites (6)
The Chicago Lighthouse (University of Illinois at Chicago, Pangere Center for Inherited Retinal Disease)
Chicago, Illinois, 60608, United States
Wilmer Eye Institute (Johns Hopkins University)
Baltimore, Maryland, 21287, United States
Montreal Children's Hospital, McGill University Health Centre
Montreal, Quebec, Canada
Institute for Ophthalmic Research, University of Tubingen
Tübingen, Germany
The Rotterdam Eye Hospital
Rotterdam, Netherlands
Moorefield Eye Hospital
London, EC1 V2PD, United Kingdom
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Sushanta Mallick
QLT Inc.
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 6, 2012
First Posted
January 31, 2012
Study Start
January 1, 2012
Primary Completion
May 1, 2014
Study Completion
June 1, 2014
Last Updated
July 28, 2014
Record last verified: 2014-07