Clinical Trials
4 trialsNCT00054561 2023-06-15
Isotretinoin, Interferon Alfa, and Vitamin E in Treating Patients With Stage III or Stage IV Head and Neck Cancer
Eastern Cooperative Oncology Group
Phase 3 Completed
NCT00064194 2020-04-03
Vitamin E, Selenium, and Soy Protein in Preventing Cancer in Patients With High-Grade Prostate Neoplasia
Canadian Cancer Trials Group
Phase 3 Completed
NCT00706121 2019-12-16
ACP
SWOG Cancer Research Network
Phase 3 Completed
NCT00006392 2015-11-20
SELECT
SWOG Cancer Research Network
Phase 3 Completed