Nctid:
NCT00001150
Payload:
{"hasResults"=>false, "derivedSection"=>{"miscInfoModule"=>{"versionHolder"=>"2024-09-05"}, "conditionBrowseModule"=>{"meshes"=>[{"id"=>"D000003872", "term"=>"Dermatitis"}, {"id"=>"D000014581", "term"=>"Urticaria"}, {"id"=>"D000012871", "term"=>"Skin Diseases"}, {"id"=>"D000001768", "term"=>"Blister"}, {"id"=>"D000012872", "term"=>"Skin Diseases, Vesiculobullous"}], "ancestors"=>[{"id"=>"D000017445", "term"=>"Skin Diseases, Vascular"}, {"id"=>"D000006969", "term"=>"Hypersensitivity, Immediate"}, {"id"=>"D000006967", "term"=>"Hypersensitivity"}, {"id"=>"D000007154", "term"=>"Immune System Diseases"}, {"id"=>"D000020763", "term"=>"Pathological Conditions, Anatomical"}], "browseLeaves"=>[{"id"=>"M7067", "name"=>"Dermatitis", "asFound"=>"Dermatitis", "relevance"=>"HIGH"}, {"id"=>"M17330", "name"=>"Urticaria", "asFound"=>"Urticaria", "relevance"=>"HIGH"}, {"id"=>"M15674", "name"=>"Skin Diseases", "asFound"=>"Skin Diseases", "relevance"=>"HIGH"}, {"id"=>"M15675", "name"=>"Skin Diseases, Vesiculobullous", "asFound"=>"Vesiculobullous Skin Disease", "relevance"=>"HIGH"}, {"id"=>"M5049", "name"=>"Blister", "asFound"=>"Blister", "relevance"=>"HIGH"}, {"id"=>"M19714", "name"=>"Skin Diseases, Vascular", "relevance"=>"LOW"}, {"id"=>"M10018", "name"=>"Hypersensitivity", "relevance"=>"LOW"}, {"id"=>"M10020", "name"=>"Hypersensitivity, Immediate", "relevance"=>"LOW"}, {"id"=>"M10200", "name"=>"Immune System Diseases", "relevance"=>"LOW"}, {"id"=>"M22519", "name"=>"Pathological Conditions, Anatomical", "relevance"=>"LOW"}], "browseBranches"=>[{"name"=>"Skin and Connective Tissue Diseases", "abbrev"=>"BC17"}, {"name"=>"All Conditions", "abbrev"=>"All"}, {"name"=>"Immune System Diseases", "abbrev"=>"BC20"}, {"name"=>"Symptoms and General Pathology", "abbrev"=>"BC23"}]}}, "protocolSection"=>{"designModule"=>{"studyType"=>"OBSERVATIONAL", "enrollmentInfo"=>{"count"=>2000}}, "statusModule"=>{"overallStatus"=>"COMPLETED", "startDateStruct"=>{"date"=>"1976-10"}, "expandedAccessInfo"=>{"hasExpandedAccess"=>false}, "statusVerifiedDate"=>"2004-03", "completionDateStruct"=>{"date"=>"2004-03"}, "lastUpdateSubmitDate"=>"2008-03-03", "studyFirstSubmitDate"=>"1999-11-03", "studyFirstSubmitQcDate"=>"1999-11-03", "lastUpdatePostDateStruct"=>{"date"=>"2008-03-04", "type"=>"ESTIMATED"}, "studyFirstPostDateStruct"=>{"date"=>"1999-11-04", "type"=>"ESTIMATED"}}, "conditionsModule"=>{"keywords"=>["Blister Formation", "Inflammatory Mediator Assay", "Ultraviolet Radiation"], "conditions"=>["Dermatitis", "Healthy", "Neoplasm", "Urticaria", "Vesiculobullous Skin Disease"]}, "referencesModule"=>{"references"=>[{"pmid"=>"7897231", "type"=>"BACKGROUND", "citation"=>"Blauvelt A, Clerici M, Lucey DR, Steinberg SM, Yarchoan R, Walker R, Shearer GM, Katz SI. Functional studies of epidermal Langerhans cells and blood monocytes in HIV-infected persons. J Immunol. 1995 Apr 1;154(7):3506-15."}, {"pmid"=>"8617889", "type"=>"BACKGROUND", "citation"=>"Blauvelt A, Chougnet C, Shearer GM, Katz SI. Modulation of T cell responses to recall antigens presented by Langerhans cells in HIV-discordant identical twins by anti-interleukin (IL)-10 antibodies and IL-12. J Clin Invest. 1996 Mar 15;97(6):1550-5. doi: 10.1172/JCI118578."}, {"pmid"=>"9396607", "type"=>"BACKGROUND", "citation"=>"Zaitseva M, Blauvelt A, Lee S, Lapham CK, Klaus-Kovtun V, Mostowski H, Manischewitz J, Golding H. Expression and function of CCR5 and CXCR4 on human Langerhans cells and macrophages: implications for HIV primary infection. Nat Med. 1997 Dec;3(12):1369-75. doi: 10.1038/nm1297-1369."}]}, "descriptionModule"=>{"briefSummary"=>"The use of a suction blister apparatus has facilitated study of the immunologic capacity of human epidermal cells. We have been able to prepare purified populations of these cells after blister formation. Specifically, using the blister tops, we are able to enrich for epidermal Langerhans cells which are very potent stimulators in antigen presenting assays. Thus, this normal volunteer study provides an important source of fresh epidermal tissue from which we can study normal epidermal Langerhans cell function. In addition, we have recently used blister roofs in important experimental models of HIV-1 transmission. There is no other method available for assessing the biologic function of freshly isolated Langerhans cells without altering their milieu. It is a very safe and effective way to obtain human epidermal samples.", "detailedDescription"=>"The use of a suction blister apparatus has facilitated study of the immunologic capacity of human epidermal cells. We have been able to prepare purified populations of these cells after blister formation. Specifically, using the blister tops, we are able to enrich for epidermal Langerhans cells which are very potent stimulators in antigen presenting assays. Thus, this normal volunteer study provides an important source of fresh epidermal tissue from which we can study normal epidermal Langerhans cell function. In addition, we have recently used blister roofs in important experimental models of HIV-1 transmission. There is no other method available for assessing the biologic function of freshly isolated Langerhans cells without altering their milieu. It is a very safe and effective way to obtain human epidermal samples."}, "eligibilityModule"=>{"sex"=>"ALL", "stdAges"=>["CHILD", "ADULT", "OLDER_ADULT"], "healthyVolunteers"=>true, "eligibilityCriteria"=>"INCLUSION CRITERIA\n\nPatients with urticaria of all types, blistering diseases, inflammatory dermatoses and neoplastic skin diseases.\n\nPatients 18 years of age or older.\n\nNo pregnant women."}, "identificationModule"=>{"nctId"=>"NCT00001150", "briefTitle"=>"Induction of Suction Blisters in Patients With Urticaria, Blistering Diseases, Inflammatory Dermatoses and Neoplastic Disorders, and in Normal Volunteers", "organization"=>{"class"=>"NIH", "fullName"=>"National Institutes of Health Clinical Center (CC)"}, "officialTitle"=>"Induction of Suction Blisters in Patients With Urticaria, Blistering Diseases, Inflammatory Dermatoses and Neoplastic Disorders, and in Normal Volunteers", "orgStudyIdInfo"=>{"id"=>"760293"}, "secondaryIdInfos"=>[{"id"=>"76-C-0293"}]}, "contactsLocationsModule"=>{"locations"=>[{"zip"=>"20892", "city"=>"Bethesda", "state"=>"Maryland", "country"=>"United States", "facility"=>"National Cancer Institute (NCI)", "geoPoint"=>{"lat"=>38.98067, "lon"=>-77.10026}}]}, "sponsorCollaboratorsModule"=>{"leadSponsor"=>{"name"=>"National Cancer Institute (NCI)", "class"=>"NIH"}}}}
