NCT00002646 2012-01-05Hormone Therapy in Treating Postmenopausal Women With Receptor-Positive Breast CancerNational Cancer Institute (NCI)Phase 3 Completed1,500 enrolled
NCT00001378 2008-03-04A Pilot Trial of Tamoxifen and 4-HPR (4-N-Hydroxyphenyl Retinamide) in Persons at High Risk for Developing Breast CancerNational Institutes of Health Clinical Center (CC)Phase 1 Completed75 enrolled