The Natural History of Geographic Atrophy Progression (GAP) Study
1 other identifier
observational
1,000
1 country
1
Brief Summary
The objective of the 18-month trial is to evaluate the natural history of geographic atrophy by assessing the rate of progression of the geographic atrophic lesion over time.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
1 active site
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
December 1, 2007
CompletedFirst Submitted
Initial submission to the registry
January 13, 2008
CompletedFirst Posted
Study publicly available on registry
January 24, 2008
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2009
CompletedMarch 2, 2010
February 1, 2010
2 years
January 13, 2008
February 26, 2010
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
GA progression rate using fundus autofluorescence
From baseline
Secondary Outcomes (1)
GA progression rate using fundus photography
From baseline
Eligibility Criteria
Patients showing signs of geographic atrophy secondary to age-related macular degeneration with no CNV lesion.
You may qualify if:
- Clinical diagnosis of geographic atrophy secondary to age-related macular degeneration with no CNV lesion.
You may not qualify if:
- Age related
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Alcon Researchlead
Study Sites (1)
Houston
Houston, Texas, 77030, United States
Related Publications (4)
Steinberg JS, Auge J, Jaffe GJ, Fleckenstein M, Holz FG, Schmitz-Valckenberg S; GAP Study Group. Longitudinal analysis of reticular drusen associated with geographic atrophy in age-related macular degeneration. Invest Ophthalmol Vis Sci. 2013 Jun 10;54(6):4054-60. doi: 10.1167/iovs.12-11538.
PMID: 23633663DERIVEDMauschitz MM, Fonseca S, Chang P, Gobel AP, Fleckenstein M, Jaffe GJ, Holz FG, Schmitz-Valckenberg S; GAP Study Group. Topography of geographic atrophy in age-related macular degeneration. Invest Ophthalmol Vis Sci. 2012 Jul 26;53(8):4932-9. doi: 10.1167/iovs.12-9711.
PMID: 22661483DERIVEDSchmitz-Valckenberg S, Alten F, Steinberg JS, Jaffe GJ, Fleckenstein M, Mukesh BN, Hohman TC, Holz FG; Geographic Atrophy Progression (GAP) Study Group. Reticular drusen associated with geographic atrophy in age-related macular degeneration. Invest Ophthalmol Vis Sci. 2011 Aug 24;52(9):5009-15. doi: 10.1167/iovs.11-7235.
PMID: 21498612DERIVEDSchmitz-Valckenberg S, Fleckenstein M, Gobel AP, Hohman TC, Holz FG. Optical coherence tomography and autofluorescence findings in areas with geographic atrophy due to age-related macular degeneration. Invest Ophthalmol Vis Sci. 2011 Jan 5;52(1):1-6. doi: 10.1167/iovs.10-5619.
PMID: 20688734DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Patricia Zilliox
Alcon Research
Study Design
- Study Type
- observational
- Observational Model
- CASE ONLY
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- INDUSTRY
Study Record Dates
First Submitted
January 13, 2008
First Posted
January 24, 2008
Study Start
December 1, 2007
Primary Completion
December 1, 2009
Last Updated
March 2, 2010
Record last verified: 2010-02