U.S., July 12 -- ClinicalTrials.gov registry received information related to the study (NCT07061717) titled 'Comparing Endocrine Therapy Combined With High-Dose Palbociclib and Hydroxychloroquine to Endocrine Therapy Combined With Standard-Dose Palbociclib for Hormone Receptor-Positive and HER2-Negative Advanced Breast Cancer' on May 28.

Brief Summary: This is a a phase III, randomized, open-label clinical trial comparing endocrine therapy combined with high-dose palbociclib and hydroxychloroquine to endocrine therapy combined with standard-dose palbociclib for hormone receptor-positive and her2-negative advanced breast cancer.

Study Start Date: July 01

Study Type: INTERVENTIONAL

Condition: Hormone Receptor-Positive and HER2-Negative A...