Nctid:
NCT00001395
Payload:
{"hasResults"=>false, "derivedSection"=>{"miscInfoModule"=>{"versionHolder"=>"2024-12-20"}, "conditionBrowseModule"=>{"meshes"=>[{"id"=>"D001766", "term"=>"Blindness"}, {"id"=>"D002386", "term"=>"Cataract"}, {"id"=>"D008268", "term"=>"Macular Degeneration"}, {"id"=>"D012164", "term"=>"Retinal Diseases"}, {"id"=>"D003930", "term"=>"Diabetic Retinopathy"}], "ancestors"=>[{"id"=>"D007905", "term"=>"Lens Diseases"}, {"id"=>"D005128", "term"=>"Eye Diseases"}, {"id"=>"D012162", "term"=>"Retinal Degeneration"}, {"id"=>"D003925", "term"=>"Diabetic Angiopathies"}, {"id"=>"D014652", "term"=>"Vascular Diseases"}, {"id"=>"D002318", "term"=>"Cardiovascular Diseases"}, {"id"=>"D048909", "term"=>"Diabetes Complications"}, {"id"=>"D003920", "term"=>"Diabetes Mellitus"}, {"id"=>"D004700", "term"=>"Endocrine System Diseases"}, {"id"=>"D014786", "term"=>"Vision Disorders"}, {"id"=>"D012678", "term"=>"Sensation Disorders"}, {"id"=>"D009461", "term"=>"Neurologic Manifestations"}, {"id"=>"D009422", "term"=>"Nervous System Diseases"}], "browseLeaves"=>[{"id"=>"M5638", "name"=>"Cataract", "asFound"=>"Cataract", "relevance"=>"HIGH"}, {"id"=>"M7115", "name"=>"Diabetes Mellitus", "relevance"=>"LOW"}, {"id"=>"M14999", "name"=>"Retinal Diseases", "asFound"=>"Retinopathy", "relevance"=>"HIGH"}, {"id"=>"M11260", "name"=>"Macular Degeneration", "asFound"=>"Macular Degeneration", "relevance"=>"HIGH"}, {"id"=>"M7125", "name"=>"Diabetic Retinopathy", "asFound"=>"Diabetic Retinopathy", "relevance"=>"HIGH"}, {"id"=>"M20559", "name"=>"Disease Progression", "relevance"=>"LOW"}, {"id"=>"M5047", "name"=>"Blindness", "asFound"=>"Blindness", "relevance"=>"HIGH"}, {"id"=>"M10917", "name"=>"Lens Diseases", "relevance"=>"LOW"}, {"id"=>"M8271", "name"=>"Eye Diseases", "relevance"=>"LOW"}, {"id"=>"M14997", "name"=>"Retinal Degeneration", "relevance"=>"LOW"}, {"id"=>"M7120", "name"=>"Diabetic Angiopathies", "relevance"=>"LOW"}, {"id"=>"M17400", "name"=>"Vascular Diseases", "relevance"=>"LOW"}, {"id"=>"M26004", "name"=>"Diabetes Complications", "relevance"=>"LOW"}, {"id"=>"M7862", "name"=>"Endocrine System Diseases", "relevance"=>"LOW"}, {"id"=>"M17530", "name"=>"Vision Disorders", "relevance"=>"LOW"}, {"id"=>"M15490", "name"=>"Sensation Disorders", "relevance"=>"LOW"}, {"id"=>"M12404", "name"=>"Neurologic Manifestations", "relevance"=>"LOW"}], "browseBranches"=>[{"name"=>"Eye Diseases", "abbrev"=>"BC11"}, {"name"=>"All Conditions", "abbrev"=>"All"}, {"name"=>"Nutritional and Metabolic Diseases", "abbrev"=>"BC18"}, {"name"=>"Gland and Hormone Related Diseases", "abbrev"=>"BC19"}, {"name"=>"Heart and Blood Diseases", "abbrev"=>"BC14"}, {"name"=>"Symptoms and General Pathology", "abbrev"=>"BC23"}, {"name"=>"Nervous System Diseases", "abbrev"=>"BC10"}]}}, "protocolSection"=>{"designModule"=>{"studyType"=>"OBSERVATIONAL", "enrollmentInfo"=>{"count"=>75}}, "statusModule"=>{"overallStatus"=>"COMPLETED", "startDateStruct"=>{"date"=>"1994-03"}, "expandedAccessInfo"=>{"hasExpandedAccess"=>false}, "statusVerifiedDate"=>"1999-03", "completionDateStruct"=>{"date"=>"2000-08"}, "lastUpdateSubmitDate"=>"2008-03-03", "studyFirstSubmitDate"=>"1999-11-03", "studyFirstSubmitQcDate"=>"2002-12-09", "lastUpdatePostDateStruct"=>{"date"=>"2008-03-04", "type"=>"ESTIMATED"}, "studyFirstPostDateStruct"=>{"date"=>"2002-12-10", "type"=>"ESTIMATED"}}, "conditionsModule"=>{"keywords"=>["Cataracts", "Complications", "Rates of Progression", "Diabetic Retinopathy"], "conditions"=>["Blindness", "Cataract", "Diabetes Mellitus", "Diabetic Retinopathy", "Macular Degeneration"]}, "descriptionModule"=>{"briefSummary"=>"The efficacy of laser photocoagulation treatment for diabetic retinopathy has been demonstrated by several National Eye Institute (NEI) sponsored clinical trials. The Diabetic Retinopathy Study (DRS) demonstrated that scatter photocoagulation reduces the risk of blindness from diabetic retinopathy. The Early Treatment Diabetic Retinopathy Study (ETDRS) extended these findings by providing information on when to initiate scatter photocoagulation and by demonstrating that focal treatment was effective in treating macula edema. The Krypton Argon Regression Neovascularization Study (KARNS) showed that scatter photocoagulation with krypton red laser was just as safe and effective as the argon blue-green laser in the treatment of proliferative diabetic retinopathy.\n\nUnfortunately, there is little data on the long term effects of photocoagulation on visual function. The first objective of this study is to assess the long term effects of photocoagulation for diabetic retinopathy. A second objective is to provide additional information on the risk of progression of cataracts in persons with diabetes. All patients previously treated with laser photocoagulation (focal and/or scatter) are eligible to participate in this long term study. The first priority will be given to patients who participated in the ETDRS and KARNS because of the wealth of information available regarding the details of their treatment and course after treatment. Study evaluations will include a standard ophthalmic examination, fluorescein angiography, lens and fundus photography.", "detailedDescription"=>"The efficacy of laser photocoagulation treatment for diabetic retinopathy has been demonstrated by several National Eye Institute (NEI) sponsored clinical trials. The Diabetic Retinopathy Study (DRS) demonstrated that scatter photocoagulation reduces the risk of blindness from diabetic retinopathy. The Early Treatment Diabetic Retinopathy Study (ETDRS) extended these findings by providing information on when to initiate scatter photocoagulation and by demonstrating that focal treatment was effective in treating macula edema. The Krypton Argon Regression Neovascularization Study (KARNS) showed that scatter photocoagulation with krypton red laser was just as safe and effective as the argon blue-green laser in the treatment of proliferative diabetic retinopathy.\n\nUnfortunately, there is little data on the long term effects of photocoagulation on visual function. The first objective of this study is to assess the long term effects of photocoagulation for diabetic retinopathy. A second objective is to provide additional information on the risk of progression of cataracts in persons with diabetes. All patients previously treated with laser photocoagulation (focal and/or scatter) are eligible to participate in this long term study. The first priority will be given to patients who participated in the ETDRS and KARNS because of the wealth of information available regarding the details of their treatment and course after treatment. Study evaluations will include a standard ophthalmic examination, fluorescein angiography, lens and fundus photography."}, "eligibilityModule"=>{"sex"=>"ALL", "stdAges"=>["CHILD", "ADULT", "OLDER_ADULT"], "healthyVolunteers"=>false, "eligibilityCriteria"=>"All patients with diabetic retinopathy that has been treated previously with laser photocoagulation, either focal or scatter treatment, are eligible.\n\nPatients must be 18 or more years of age.\n\nPatients who have not had laser photocoagulation for diabetic retinopathy are not eligible for the study."}, "identificationModule"=>{"nctId"=>"NCT00001395", "briefTitle"=>"Long Term Follow-Up of Diabetic Retinopathy", "organization"=>{"class"=>"NIH", "fullName"=>"National Institutes of Health Clinical Center (CC)"}, "officialTitle"=>"Long Term Follow-Up of Diabetic Retinopathy", "orgStudyIdInfo"=>{"id"=>"940106"}, "secondaryIdInfos"=>[{"id"=>"94-EI-0106"}]}, "contactsLocationsModule"=>{"locations"=>[{"zip"=>"20892", "city"=>"Bethesda", "state"=>"Maryland", "country"=>"United States", "facility"=>"National Eye Institute (NEI)", "geoPoint"=>{"lat"=>38.98067, "lon"=>-77.10026}}]}, "sponsorCollaboratorsModule"=>{"leadSponsor"=>{"name"=>"National Eye Institute (NEI)", "class"=>"NIH"}}}}
