Skin Cancer Prophylaxis by Low-Fat Dietary Intervention
preventative dietary intervention
Carcinome+3
+ Néoplasmes
+ Néoplasmes par type histologique
Étude de prévention
Résumé
Date de début de l'étude : 1 avril 1989
Date à laquelle le premier participant a commencé l'étude.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.
Protocole
Cette section fournit des détails sur le plan de l'étude, y compris la manière dont l'étude est conçue et ce qu'elle évalue.175 participants à inclure
Nombre total de participants que l'essai clinique vise à recruter.Prévention
Éligibilité
Les chercheurs recherchent des patients correspondant à une certaine description appelée critères d'éligibilité : état de santé général ou traitements antérieurs du patient.Tout sexe
Le sexe biologique des participants éligibles à s'inscrire.À partir de 15 ans
Tranche d'âge des participants éligibles à participer.Volontaires sains non autorisés
Indique si les individus en bonne santé et ne présentant pas la condition étudiée peuvent participer.Conditions
Pathologie
Critères
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.
Centres d'étude
Ce sont les hôpitaux, cliniques ou centres de recherche où l'essai est conduit. Vous pouvez trouver le site le plus proche de vous ainsi que son statut.Cette étude comporte 1 site