- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03323125
Photoprotection Habits in Patients With Vitiligo (VITISUN)
Intro:
Patients with vitiligo have a reduced protection on depigmented areas. To date, however, little is known about photoprotection habits in patients with vitiligo even though these patients are thought to have a decreased ability to efficiently protect their skin against sun damage. Moreover, exposure to artificial UV is one of the major elements of the treatment of vitiligo even though certain phenotypes of vitiligo could be photoinduced.
Hypothesis The Primary objective is to describe patients behaviour with sun exposition
The Secondary objectives are:
- to assess the link between sun exposition and vitiligo outbreaks
- to assess photoprotection habits according to initial phototype and vitiligo severity (SA-VES)
- To validate a short form of the VIPs questionnaire, a validated burden questionnaire.
Method We aim to conduct a prospective cross sectional study in patients with Vitiligo with the aim to evaluate sun protection habits in patients with vitiligo. For that purpose a semi-directed questionnaire to investigate the sun protection behavior of vitiligo patients (adults> 18 years of age) have been created by experts in the field. Vitiligo severity will be self-assessed by patients using a recently validated patient reported outcome, the SA-VES. Consecutive vitiligo patients consulting in the dermatology department of Henri Mondor Hospital (Créteil, France) will be proposed to participate the study after having given their oral consent. We are planning to enrol 500 patients.
In a first step, a descriptive analysis will be carried out in order to describe the characteristics of the sample. Basic summary statistics, such as proportions, means and standard deviations, will be used to characterize the population. In order to identify the factors associated with the severity of the disease on the one hand and the phototype on the other, comparisons between groups (severe versus non-severe and light phototype versus dark phototype) will be carried out by unconditional logistic regression. All potential predictors of severity will first be assessed individually, and Odds Ratio (OR), corresponding 95% CIs and P values will be calculated. The significance of the OR will be determined by the Wald test χ2, and the predictors with P <.20 will then be evaluated using a multivariate analysis with a pre-selection procedure. Possible interactions and multi-colinearity will be examined. Finally, the quality of fit of the final model will be evaluated using the logistic regression diagnostic procedure. P ≤ 0.05 will be considered as statistically significant. The Hosmer-Lemeshow test will be carried out to test the suitability of the model.
Conclusion This study will help to identify gaps in the knowledge of sun protection habits in patients with vitiligo.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
-
-
-
Créteil, France, 94010
- Assistance Publique Hôpitaux de Paris - CHU Henri Mondor
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Age >=18 y.o
- Men or women with Vitiligo
Exclusion Criteria:
- Oral or written opposition expressed by patient
- Patient under tutorship or curatorship
- cognitive dysfunction making communication or questionnaire filling impossible
Study Plan
How is the study designed?
Design Details
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
estimation of skin sun reaction: Fitzpatrick scale
Time Frame: At inclusion
|
Fitzpatrick scale is a numerical classification scale for human skin color that help to estimate skin reaction towards ultraviolet light exposure. It contains six categories, Type I is the fairest skin complexion and type VI is the darkest complexion : Type I (scores 0-6) always burns, never tans (pale white; blond or red hair; blue eyes; freckles). Type II (scores 7-13) usually burns, tans minimally (white; fair; blond or red hair; blue, green, or hazel eyes) Type III (scores 14-20) sometimes mild burn, tans uniformly (cream white; fair with any hair or eye color) Type IV (scores 21-27) burns minimally, always tans well (moderate brown) Type V (scores 28-34) very rarely burns, tans very easily (dark brown) Type VI (scores 35-36) Never burns, never tans (deeply pigmented dark brown to darkest brown) |
At inclusion
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
vitiligo outbreak
Time Frame: At inclusion
|
vitiligo outbreak: new stain in the 3 last months
|
At inclusion
|
Auto evaluation of vitiligo severity: SA-VES
Time Frame: At inclusion
|
SA-VES (Self-Assessment - Vitiligo Extent Score)(1) is a patient reported outcome that measure the severity of vitiligo and its body extent from the patient perspective. Patients scored less than 10 are considered as less severe. (1)Development and validation of a patient-reported outcome measure in vitiligo: The Self Assessment Vitiligo Extent Score (SA-VES). van Geel N, Lommerts JE, Bekkenk MW, Prinsen CA, Eleftheriadou V, Taieb A, Picardo M, Ezzedine K, Wolkerstorfer A, Speeckaert R; international Vitiligo Score Working Group.. J Am Acad Dermatol. 2017 Mar;76(3):464-471. |
At inclusion
|
Collaborators and Investigators
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- NI17014J
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Vitiligo
-
PfizerRecruitingStable Nonsegmental Vitiligo | Active Nonsegmental VitiligoUnited States, Spain, Australia, Mexico, Canada, China, Japan, Italy, Turkey, Korea, Republic of, Germany, South Africa, Poland, United Kingdom, Bulgaria
-
PfizerRecruitingStable Nonsegmental Vitiligo | Active Nonsegmental VitiligoJapan, Canada, China, United States
-
Fundació Institut de Recerca de l'Hospital de la...Completed
-
Incyte CorporationRecruitingNonSegmental VitiligoGermany, United States, Italy, Poland, Canada, France, Bulgaria, Hungary, United Kingdom
-
Incyte CorporationCompletedNonSegmental VitiligoUnited States, Canada
-
Cairo UniversitySuspended
-
Assiut UniversityUnknown
-
University of TorontoCanadian Interdisciplinary Network Complementary & Alternative Medicine ResearchCompleted
-
University Hospital, GhentNovartisCompletedVitiligo VulgarisBelgium
Clinical Trials on Self-Assessment Questionnaire
-
Assistance Publique Hopitaux De MarseilleNot yet recruiting
-
University Hospital of FerraraActive, not recruiting
-
Mario Negri Institute for Pharmacological ResearchIRCCS Multimedica; Centro Cardiologico MonzinoRecruitingEpidemiology of Cardiovascular RiskItaly
-
GlaxoSmithKlineTerminated
-
Sahlgrenska University Hospital, SwedenCompletedParkinson DiseaseSweden
-
Biotronik SE & Co. KGCompleted
-
French National Agency for Research on AIDS and...University of LyonUnknownHIV Seropositivity | AIDSFrance
-
Berit LarssonKarolinska Institutet; Ministry of Health and Social Affairs, Sweden; Blekinge...Completed
-
JanuelUnknown
-
Case Comprehensive Cancer CenterTerminatedAny Cancer DiagnosisUnited States