Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study

Completed

Phase N/A Results N/A

Eligibility Criteria

- INCLUSION CRITERIA:
Current smokers (five or more cigarettes per day at study entry) from Southwestern Finland.
EXCLUSION CRITERIA:
- Females
- Proven malignancy (except nonmelanoma skin cancer or cancer in situ)
- Severe angina pectoris
- Chronic renal insufficiency
- Cirrhosis of the liver
- Chronic alcoholism
- Anticoagulant therapy
- Use of supplements containing vitamin E greater than 20 mg/day, or vitaming A greater than 20,000 IU/day, or beta-carotene greater than 6 mg/day