Skin Cancer Prophylaxis by Low-Fat Dietary Intervention
preventative dietary intervention
Carcinoma+3
+ Neoplasms
+ Neoplasms by Histologic Type
Prevention Study
Summary
Study start date: April 1, 1989
Actual date on which the first participant was enrolled.OBJECTIVES: I. Determine whether intervention with a low-fat balanced diet will prolong the disease-free survival time in patients presenting with nonmelanomatous skin cancer and having a history of not more than two previous skin cancers. II. Assess the effect of this intervention on numbers of tumors during the two year follow-up period. III. Determine the incidence of new skin cancer in the control, nonintervention population. OUTLINE: This is a randomized study. Patients are randomized into the Dietary Intervention or Nonintervention groups. The control group has initial and follow up assessment of eating habits. The dietary intervention group also has initial and follow up assessment of eating habits that have been changed to reduce fat intake to one-half of the amount in the average American diet with a subsequent increase of carbohydrates to compensate for total caloric intake. Both groups have assessment of clinical status of skin cancer at 4 month intervals for 24 months. Patients are followed for two years. PROJECTED ACCRUAL: Approximately 175 patients will be accrued in the first 3 years of this study.
Protocol
This section provides details of the study plan, including how the study is designed and what the study is measuring.175 patients to be enrolled
Total number of participants that the clinical trial aims to recruit.Prevention Study
Eligibility
Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.Any sex
Biological sex of participants that are eligible to enroll.Over 15 Years
Range of ages for which participants are eligible to join.Healthy volunteers not allowed
If individuals who are healthy and do not have the condition being studied can participate.Conditions
Pathology
Criteria
DISEASE CHARACTERISTICS: Histologically confirmed basal cell carcinoma or squamous cell carcinoma of the skin No more than two prior skin carcinomas Must not have genetic predisposition to skin cancer (i.e., xeroderma pigmentosum, basal cell nevous syndrome) PATIENT CHARACTERISTICS: Age: 15 and over Race: Caucasian Performance status: Not specified Life expectancy: Not specified Hematopoietic: Not specified Hepatic: Not specified Renal: Not specified Other: No therapeutic diet that requires fat intake greater than 20% of total calories No untreated systemic malignancy No history of arsenic ingestion Not diabetic PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: Not specified Endocrine therapy: No concurrent systemic steroids Radiotherapy: No prior x-ray therapy for acne No prior/concurrent ultraviolet light (PUVA or UVB) therapy for psoriasis Surgery: Not specified Other: No concurrent megavitamin or mineral supplementation At least 5 years since treatment with antimetabolites, folic acid inhibitors, alkalating agents, etc.
Study Centers
These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.This study has 1 location