Clinical Trials Browser

Observational × Breast Neoplasms × Letrozole × Clear all

NCT06930859 2026-03-16

ELEGANCE

Breast Neoplasms

NCT06905301 2026-02-20

IMPULSE

Breast Neoplasms

NCT04735367 2025-12-09

Study to Evaluate Overall Survival in Japanese Patients With HR+/HER2- Advanced Breast Cancer Treated With Palbociclib Plus Letrozole

42 enrolled 7 charts

Breast Neoplasms

NCT06495164 2025-11-25

A Real-life Study to Understand the Use and Effects of Palbociclib in US Patients With Breast Cancer

Active not recruiting

Breast Neoplasms

NCT06086340 2025-11-18

Study 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.

779 enrolled 9 charts

Breast Neoplasms, Neoplasm Metastasis

NCT05635357 2025-07-28

Data Analysis for Drug Repurposing for Effective Alzheimer's Medicines (DREAM)- Anastrozole vs Exemestane/Letrozole

16,989 enrolled

Breast Neoplasms

NCT06525675 2024-12-13

Study to Evaluate the Extended Overall Survival (OS) Data From PARSIFAL Study (The PARSIFAL-LONG Study)

Breast Neoplasms

NCT04176354 2024-08-23

Real-world Treatment Patterns and Effectiveness of Palbociclib and AI Therapy

813 enrolled 11 charts

Breast Neoplasms

NCT06341283 2024-05-10

A Retrospective Real-world Study of Abemaciclib in HR+ Breast Cancer

Not yet recruiting

Breast Diseases, Breast Neoplasms, Neoplasms

NCT01814397 2024-02-07

Pilot Study to Evaluate the Effect of Aromatase Inhibitor Therapy on Pain Threshold in Breast Cancer Patients

50 enrolled 15 charts

Breast Neoplasms, Pain, Arthralgia

NCT05800197 2023-04-06

NEMO

Breast Neoplasms

NCT05131893 2021-11-23

Neoadjuvant Treatment of Breast Cancer

Not yet recruiting

Breast Neoplasms

NCT04852081 2021-04-21

Analysis of Therapy Sequence in Women With HR+, HER2 - mBC in Moscow: A Multicenter Retrospective Observational Study.

Breast Neoplasms

NCT04792840 2021-03-11

Skeletal Events of Hormonal Treatment and Radiotherapy in Patient With Breast Cacer

Breast Neoplasms

NCT04666805 2020-12-14

Effect of Endocrine Therapy Duration on Clinical Outcome of Patients With HR+ Intraductal Carcinoma of the Breast

Breast Neoplasms, Neoplasm Metastasis, Recurrence

NCT04524728 2020-08-24

Patterns of Treatment and Outcome of Palbociclib Plus Endocrine Therapy

Breast Neoplasms, Neoplasms

NCT04258163 2020-02-10

Association of Survival With Maintenance Therapy in Patients With Metastatic Breast Cancer After First-line Chemotherapy

Breast Neoplasms

NCT00111241 2018-12-14

Changes in Knee Articular Cartilage Volume in Women on Aromatase Inhibitors

115 enrolled 6 charts

Breast Neoplasms, Osteoporosis, Arthralgia, Fractures, Bone

NCT01896050 2016-06-28

LOGRIBMET

115 enrolled 14 charts

Breast Neoplasms, Obesity, Arthralgia

NCT01814449 2013-03-20

Relationship Between Hypoxia and Endocrine Response in Human Breast Cancer

Hypoxia, Breast Neoplasms

NCT00681928 2011-12-02

Cognitive Function in Older Women With Stage I, Stage II, or Stage III Breast Cancer Receiving Hormone Therapy

Breast Neoplasms