De-Escalation of Breast Radiation Trial for Hormone Sensitive, HER-2 Negative, Oncotype Recurrence Score Less Than or Equal to 18 Breast Cancer (DEBRA)
Status: RECRUITING
Study type: INTERVENTIONAL
Conditions: Stage I Breast Cancer
Interventions: OTHER: Radiation and Endocrine Therapy (Tamoxifen, Anastrozol, Letrozole, Exemestane)|DRUG: Endocrine Therapy (Tamoxifen, Anastrozol, Letrozole, Exemestane)
Sponsor: NRG Oncology
Collaborators: National Cancer Institute (NCI)