Ignite Creation Date:
2025-12-24 @ 11:28 PM
Ignite Modification Date:
2025-12-25 @ 9:15 PM
Study NCT ID:
NCT00711256
Status:
UNKNOWN
Last Update Posted:
2008-07-08
First Post:
2008-07-07
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
Sunscreen: Persistence of Sun Protection Factor and the Influence on Vitamin D
Sponsor:
Organization:
Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}}, 'protocolSection': {'designModule': {'phases': ['NA'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'RANDOMIZED', 'maskingInfo': {'masking': 'NONE'}, 'primaryPurpose': 'PREVENTION', 'interventionModel': 'FACTORIAL'}, 'enrollmentInfo': {'type': 'ESTIMATED', 'count': 80}}, 'statusModule': {'overallStatus': 'UNKNOWN', 'lastKnownStatus': 'RECRUITING', 'startDateStruct': {'date': '2008-07'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2008-04', 'completionDateStruct': {'date': '2008-11', 'type': 'ESTIMATED'}, 'lastUpdateSubmitDate': '2008-07-07', 'studyFirstSubmitDate': '2008-07-07', 'studyFirstSubmitQcDate': '2008-07-07', 'lastUpdatePostDateStruct': {'date': '2008-07-08', 'type': 'ESTIMATED'}, 'studyFirstPostDateStruct': {'date': '2008-07-08', 'type': 'ESTIMATED'}, 'primaryCompletionDateStruct': {'date': '2008-08', 'type': 'ESTIMATED'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'vitamin D (nmol) meassured in a blood sample.', 'timeFrame': '5 days after sunscreen use and UV light exposure'}]}, 'oversightModule': {'oversightHasDmc': False}, 'conditionsModule': {'keywords': ['Sunscreen', 'Application', 'Vitamin D', 'Sun protection factor', 'Clothing'], 'conditions': ['Vitamin D Production in the Skin', 'Sunscreen Persistence']}, 'referencesModule': {'references': [{'pmid': '20070835', 'type': 'DERIVED', 'citation': 'Beyer DM, Faurschou A, Philipsen PA, Haedersdal M, Wulf HC. Sun protection factor persistence on human skin during a day without physical activity or ultraviolet exposure. Photodermatol Photoimmunol Photomed. 2010 Feb;26(1):22-7. doi: 10.1111/j.1600-0781.2009.00479.x.'}]}, 'descriptionModule': {'briefSummary': 'The investigators want to investigate whether sunscreen is removed by clothing and to what extend when the amount of sunscreen applied varies.Does clothing reduce the SPF when clothes are put on 20, 8, or 4 minutes after sunscreen application? The investigators also want to investigate the persistence of sunscreen during eight hours indoor. How much does the SPF reduces? Furthermore, we want to investigate whether sunscreen in the layers 2, 1, and 0.5 mg/cm2 reduce the vitamin D production in the skin.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['ADULT', 'OLDER_ADULT'], 'maximumAge': '65 Years', 'minimumAge': '18 Years', 'healthyVolunteers': True, 'eligibilityCriteria': 'Inclusion Criteria:\n\n* Healthy participants.\n* \\> 18 years.\n* Skin type I, II, and III.\n\nExclusion Criteria:\n\n* Pregnancy.\n* Medicin use.\n* Skin or other diseases.\n* The participants must not have been in solarium or gotten sun on their trunks in the 3 months before the study start and during the study.\n* Skin types IV and above.'}, 'identificationModule': {'nctId': 'NCT00711256', 'acronym': 'sunscreen', 'briefTitle': 'Sunscreen: Persistence of Sun Protection Factor and the Influence on Vitamin D', 'organization': {'class': 'OTHER', 'fullName': 'Bispebjerg Hospital'}, 'officialTitle': 'Sunscreen Removal by Clothing Meassured in Vivo. Sun Protection Factor Persistence During a Day Indoor Without Physical Activity. Does Sunscreen Reduce Vitamin D?', 'orgStudyIdInfo': {'id': 'H-B-2007-120'}}, 'armsInterventionsModule': {'armGroups': [{'type': 'ACTIVE_COMPARATOR', 'label': '1', 'description': 'No sunscreen applied', 'interventionNames': ['Radiation: UVB light']}, {'type': 'ACTIVE_COMPARATOR', 'label': '2', 'description': 'Sunscreen applied 0.5 mg/cm2', 'interventionNames': ['Radiation: UVB light']}, {'type': 'ACTIVE_COMPARATOR', 'label': '3', 'description': 'Sunscreen applied 1mg/cm2', 'interventionNames': ['Radiation: UVB light']}, {'type': 'ACTIVE_COMPARATOR', 'label': '4', 'description': 'Sunscreen applied 2mg/cm2', 'interventionNames': ['Other: sunscreen MATAS sunlotion SPF 8', 'Radiation: UVB light']}], 'interventions': [{'name': 'sunscreen MATAS sunlotion SPF 8', 'type': 'OTHER', 'otherNames': ['MATAS sollotion. Matas Denmark, 3400 Alleroed'], 'armGroupLabels': ['4']}, {'name': 'UVB light', 'type': 'RADIATION', 'description': 'duration 4 times 1 minute radiation on the trunk.', 'armGroupLabels': ['1', '2', '3', '4']}]}, 'contactsLocationsModule': {'locations': [{'zip': '2400', 'city': 'Copenhagen', 'state': 'KBH NV', 'status': 'RECRUITING', 'country': 'Denmark', 'contacts': [{'name': 'HC Wulf, Dr.med', 'role': 'CONTACT', 'phone': '+45 3531 3155'}, {'name': 'Ditte Beyer, stud.med', 'role': 'CONTACT', 'email': 'beyer10@tiscali.dk', 'phone': '+45 2014 1423'}, {'name': 'Ditte Beyer, stud.med', 'role': 'PRINCIPAL_INVESTIGATOR'}], 'facility': 'Bispebjerg Hospital', 'geoPoint': {'lat': 55.67594, 'lon': 12.56553}}], 'centralContacts': [{'name': 'Hans Christian Wulf, Dr.med', 'role': 'CONTACT', 'phone': '+45 3135 3155'}, {'name': 'Ditte Beyer, stud.med', 'role': 'CONTACT', 'email': 'beyer10@tiscali.dk', 'phone': '+45 2014 1423'}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'Bispebjerg Hospital', 'class': 'OTHER'}, 'responsibleParty': {'oldNameTitle': 'Bispebjerg Hospital. Dr. Hans Christian Wulf', 'oldOrganization': 'Bispebjerg Hospital'}}}}