- Patients with previous or concomitant malignancy other than curatively treated carcinoma in situ of the cervix, basal cell or squamous cell carcinoma of the skin, or other primary cancer completely resected or treated within five years are ineligible. Exceptions are patients who have had tumors treated with no evidence of active disease who are felt by both the enrolling physician and the principal investigator (PI) to have a risk of relapse of less than 30%.