Isotretinoin in Preventing Skin Cancer

June 17, 2013 updated by: National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)

Use Of Isotretinion For Prevention Of Skin Cancer In Patients With Xeroderma Pigmentosum Or Nevoid Basal Cell Carcinoma Syndrome

RATIONALE: Chemoprevention therapy is the use of certain drugs to try to prevent the development or recurrence of cancer. Isotretinoin may be effective in preventing the development or recurrence of skin cancer.

PURPOSE: Clinical trial to study the effectiveness of isotretinoin in preventing or slowing the growth of skin cancer in patients who have xeroderma pigmentosum or basal cell carcinoma.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

OBJECTIVES: I. Determine the lowest effective dose of oral isotretinoin for long-term therapy that is capable of reducing the rate of formation of new skin cancers in patients with xeroderma pigmentosum or nevoid basal cell carcinoma syndrome. II. Determine the possible side effects associated with long-term use of isotretinoin in this patient population.

OUTLINE: Patients are stratified according to disease type (xeroderma pigmentosum vs nevoid basal cell carcinoma syndrome). Patients not previously treated with isotretinoin receive oral isotretinoin daily for 2 years and then are followed without receiving isotretinoin for 1 year. After the follow-up period, treatment may be resumed if the rate of new skin tumor formation reaches 2 per year provided original eligibility criteria are met. Treatment may be resumed during the follow-up period if the rate of new skin tumor formation increases to the rate observed before study. Patients previously treated with oral isotretinoin continue treatment and are followed to evaluate any long-term effects of treatment.

PROJECTED ACCRUAL: Approximately 30 patients will be accrued for this study.

Study Type

Interventional

Phase

  • Not Applicable

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

  • United States
    • Maryland
      • Bethesda, Maryland, United States, 20892
        • Intramural Research Program

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

2 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

DISEASE CHARACTERISTICS: Diagnosis of autosomal recessive disorder xeroderma pigmentosum Diagnosis must be documented by the clinical signs and symptoms listed in standard text books, e.g.: Sun sensitivity Increased number of freckles and other pigmentary lesions Cutaneous atrophy and telangiectasia Actinic keratoses Skin cancers Ocular abnormalities (e.g., photophobia, conjunctivitis, keratitis, or premalignant or malignant tumors of the eye or lid) allowed Neurologic abnormalities (e.g., progressive hearing loss, diminished reflexes, or progressive mental deterioration) allowed OR Diagnosis of autosomal dominant nevoid basal cell carcinoma syndrome Diagnosis must be documented by the clinical signs and symptoms listed in standard text books, e.g.: Basal cell carcinomas Palmar pits Skeletal abnormalities Falx calcification History of at least 2 documented skin cancers a year during the 2 years before study, but currently clear of all skin cancer Patients not previously treated with isotretinoin must agree to undergo a 1 year follow-up period without isotretinoin (to facilitate observation of any chronic toxicity and observe for new tumors) Must undergo appropriate treatment for any skin cancers that arise during study No evidence of metastatic cancer

PATIENT CHARACTERISTICS: Age: Over 2 Hematopoietic: Complete blood cell counts normal Hepatic: SGOT or SGPT less than 3 times upper limit of normal (ULN) Triglycerides less than 200 mg/dL Renal: Creatinine less than 3 times ULN Cardiovascular: No New York Heart Association class III or IV heart disease Other: No hypersensitivity to parabens (used in drug formulation) No proven active malignancy except skin cancer Not pregnant Negative pregnancy test Fertile patients must use effective contraception during and for 1 month after study therapy

PRIOR CONCURRENT THERAPY: See Disease Characteristics No recent, chronic, high-dose vitamin A use (greater than 30,000 IU/day) No concurrent supplemental vitamin A No other concurrent therapy for the skin (except sunscreens) unless approved by the investigators

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?

Design Details

  • Primary Purpose: Prevention

Collaborators and Investigators

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

Sponsor

National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)

Investigators

  • Study Chair: John J. DiGiovanna, MD, National Cancer Institute (NCI)

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

June 1, 1991

Study Completion (Actual)

February 1, 2004

Study Registration Dates

First Submitted

October 11, 2001

First Submitted That Met QC Criteria

February 26, 2004

First Posted (Estimate)

February 27, 2004

Study Record Updates

Last Update Posted (Estimate)

June 19, 2013

Last Update Submitted That Met QC Criteria

June 17, 2013

Last Verified

November 1, 2007

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CDR0000076973
  • NIAMS-91-AR-0161
  • NCI-91-C-0161

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.

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