Use of an SPF30 Sunscreen and an After-sun-lotion in Skin Cancer Risk Patients

September 29, 2009 updated by: Medical University of Graz

Regular Use of an SPF30 Sunscreen and an After-sun-lotion in Skin Cancer Risk Patients, Particularly in Xeroderma Pigmentosum and Basal Cell Nevus Syndrome

Study aim: To determine the effect of an intensified daily photoprotection over 24 months with an SPF30 sunscreen and an after sun-lotion both containing liposomal DNA repair enzymes in a population of patients at high-risk for skin cancer, including xeroderma pigmentosum (XP) and basal cell nevus syndrome.

Study Overview

Status

Completed

Conditions

Detailed Description

An SPF 30 sunscreen and a proprietary after sun lotion both containing a combination of plankton extract and micrococcus lysate (kindly provided by ATEIA AG, Vaduz, Liechtenstein) was used in a pilot study of intensified photoprotection in patients with multiple skin cancers. Thirteen patients (8 women and 5 men), between 37 and 81 years old, who had had a history of multiple skin cancers were enrolled in the study. Five of the patients had xeroderma pigmentosum (XP) (complementation group: A, 2; C,1; and non-classified 2); one patient XP variant, 3 patients basal cell nevus syndrome, and four patients no skin cancer syndrome. Patients were instructed to apply their sunscreen regularly before sun exposure and 4.5 ml of the after sun lotion to their face and arms daily, as close to mid-day as possible for a period of up to 24 months. The patients were examined in 3-month intervals and the new appearance of actinic keratoses and skin cancers was recorded. New lesions were removed at these visits and the pathology was confirmed by histological examination, except in the cases of (multiple) actinic keratoses, whenever patients agreed. The number of skin tumors during the 24 months of the study was compared to the number in the preceding 24 month-period before study entry. The data were obtained from patient charts and/or electronic files. There was a statistical trend for less BCCs during the study period compared to the prestudy period. In addition, the patients received at each of the 3-month visits a questionnaire and were asked to rate the status of their skin on face and arms during the last 3 months for various parameters on a scale from -2 (maximum worsening) to +2 (maximum improvement). The patients' ratings revealed a statistically significant improvement for several parameters: smoothness, color spots, wrinkles, burning, irritation, teleangiectasia, infections, warts, and skin lesions or sores, starting as early than at the first 3-month visit with a maximum effect seen at 12 months. No adverse effects were noted during the study.

Study Type

Observational

Enrollment (Actual)

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Austria
- - Graz, Austria, A-8036
    - Medical University of Graz, Department of Dermatology

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

19 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Primary care clinic

Description

Inclusion Criteria:

Xeroderma pigmentosum
Basal cell nevus syndrome
Other patient with a history of multiple skin cancers (three or more lesions, including actinic keratosis, squamous cell carcinoma, basal cell carcinoma, and/or malignant melanoma)

Exclusion Criteria:

Intolerance of study preparation
Allergy against study preparation
Non-acceptable side effects

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
Number of skin cancers Time Frame: retrospective	retrospective

Secondary Outcome Measures

Outcome Measure	Time Frame
Patients' skin score parameters (including smoothness, color spots, wrinkles, burning, irritation, teleangiectasia, infections, warts, and skin lesions or sores) Time Frame: retrospective	retrospective

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Medical University of Graz

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

October 1, 2004

Study Completion (ACTUAL)

February 1, 2006

Study Registration Dates

First Submitted

November 7, 2007

First Submitted That Met QC Criteria