Skin Cancer Prophylaxis by Low-Fat Dietary Intervention
试验速览
- 阶段
- 2 期
- 入组人数
- 175
- 试验地点
- 1
研究概览
简要总结
RATIONALE: A low-fat, balanced diet may prevent disease progression in patients with nonmelanomatous skin cancer.
PURPOSE: Randomized phase II trial to study the effectiveness of a low-fat, balanced diet to prevent disease progression in patients with nonmelanomatous skin cancer.
详细描述
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.
研究设计
- 研究类型
- Interventional
- 主要目的
- Prevention
入排标准
- 年龄范围
- 15 Years 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •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.
排除标准
- 未提供