Study Stopped
Lack of definitive clinical results.
A Study to Evaluate the Safety and Efficacy of the QLT Proprietary Olopatadine-PPDS in Subjects With Seasonal Allergic Conjunctivitis to Ragweed in an Environmental Exposure Chamber Model.
A Randomized, Double-Masked, Placebo-Controlled, Proof of Concept Study to Evaluate the Short-term Safety and Efficacy of the QLT Proprietary Olopatadine Punctal Plug Delivery System in Subjects With Seasonal Allergic Conjunctivitis to Ragweed in an Environmental Exposure Chamber Model.
2 other identifiers
interventional
143
1 country
1
Brief Summary
The purpose of this study is to test if olopatadine punctal plugs can reduce the symptoms (itching) of allergic conjunctivitis to ragweed in an Environmental Exposure Chamber model.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Oct 2010
Shorter than P25 for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
October 1, 2010
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2011
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2011
CompletedFirst Submitted
Initial submission to the registry
January 27, 2011
CompletedFirst Posted
Study publicly available on registry
February 1, 2011
CompletedSeptember 17, 2013
September 1, 2013
3 months
January 27, 2011
September 16, 2013
Conditions
Outcome Measures
Primary Outcomes (2)
Safety of olopatadine-PPDS in subjects with seasonal allergic conjunctivitis to ragweed
4 Days
Change from baseline in subject-rated ocular itching scores in treated vs placebo control arms in subjects with seasonal allergic conjunctivitis to ragweed
4 days
Secondary Outcomes (1)
Change from baseline and observed values in subject rated ocular itching scores compared between lower puncta delivery and double puncta delivery arms
4
Study Arms (2)
Lower Puncta Delivery
EXPERIMENTALDouble Puncta Delivery
EXPERIMENTALInterventions
Eligibility Criteria
You may qualify if:
- History of allergic conjunctivitis to ragweed for at least one year
- Positive skin prick test to ragweed pollen within 12 months prior to visit 1
- BCVA of at leat 20/400
You may not qualify if:
- Structural lid abnormalities (ectropion, entropion)
- Active lid disease ( ie moderate or severe blepharitis, meibomianitis) that requires medical treatment
- Presence of follicular conjunctivitis, anterior uveitis or preauricular lymphadenopathy
- History of ophthalmic abnormality, including a history of dry eye
- Perennial allergic rhinoconjunctivitis having significant allergy to animal dander that cannot be avoided during the study period
- History of chronic bacterial or viral ocular infection, such as herpes keratitis, and/or presence of active bacterial or viral ocular infection
- presence of mucous discharge, excess lacrimation or burning as a symptoms of ocular disease
- Currently on any chronic ocular topical medications
- Use of topical or systemic ocular medications during the study period
- History of complications, adverse events, trauma or disease in the nasolacrimal area
- History of symptomatic epiphoria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Cetero Research
Toronto, Ontario, Canada
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Dipak Panigrahi, MD
QLT Inc.
- PRINCIPAL INVESTIGATOR
Deepen Patel, MD
Cetero Research, San Antonio
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 27, 2011
First Posted
February 1, 2011
Study Start
October 1, 2010
Primary Completion
January 1, 2011
Study Completion
January 1, 2011
Last Updated
September 17, 2013
Record last verified: 2013-09