NCT07225790 2026-02-27Emulation of the MONARCH-3 Trial Using Specialty Oncology Electronic Health Records DatabasesBrigham and Women's HospitalCompleted3,883 enrolled
NCT07178743 2026-01-30Emulation of the PALOMA-2 TrialBrigham and Women's HospitalActive not recruiting6,097 enrolled
NCT04735367 2025-12-09Study to Evaluate Overall Survival in Japanese Patients With HR+/HER2- Advanced Breast Cancer Treated With Palbociclib Plus LetrozolePfizerCompleted42 enrolled 7 charts
NCT06495164 2025-11-25A Real-life Study to Understand the Use and Effects of Palbociclib in US Patients With Breast CancerPfizerActive not recruiting1 enrolled
NCT06086340 2025-11-18Study to Compare Overall Survival in Medicare Patients With Metastatic Breast Cancer Treated With a Medicine Called Palbociclib in Combination With Aromatase Inhibitor and Aromatase Inhibitor by Itself.PfizerCompleted779 enrolled 9 charts
NCT05635357 2025-07-28Data Analysis for Drug Repurposing for Effective Alzheimer's Medicines (DREAM)- Anastrozole vs Exemestane/LetrozoleBrigham and Women's HospitalCompleted16,989 enrolled
NCT06861803 2025-03-21Laboratory and Ultrasound Findings and Response to Letrozole in PCOS PatientsAl-Azhar UniversityNot yet recruiting138 enrolled