Clinical Trials Browser

Phase 2 × INDUSTRY × Letrozole × Clear all

Breast Neoplasms

Advanced Breast Cancer

Breast Neoplasms, Ovarian Neoplasms, Small Cell Lung Carcinoma

Carcinoma, Non-Small-Cell Lung

Ovarian Neoplasms

Breast Cancer Metastatic

Breast Neoplasms, Hereditary Sensory and Autonomic Neuropathies

Squamous Cell Carcinoma of Head and Neck, Breast Neoplasms, Head and Neck Neoplasms

Breast Neoplasms

Breast Neoplasms

Adenocarcinoma of Lung, Breast Neoplasms, Liposarcoma, Prostatic Neoplasms, Colorectal Neoplasms

Breast Neoplasms

Breast Neoplasms

Breast Neoplasms

Breast Neoplasms

Breast Neoplasms

Lethal Congenital Contracture Syndrome 2

Breast Neoplasms

Breast Neoplasms, Neoplasm Metastasis

Breast Neoplasms

Breast Neoplasms

Breast Neoplasms, Neoplasms

Breast Neoplasms

Breast Neoplasms

Breast Neoplasms

Breast Neoplasms

Breast Neoplasms

Breast Neoplasms

Breast Neoplasms

Breast Neoplasms

Recurrence, Endometrial Neoplasms

Breast Neoplasms

Breast Neoplasms

Breast Neoplasms

Breast Neoplasms

Breast Neoplasms

Breast Neoplasms

Breast Neoplasms

Breast Neoplasms

Recurrence, Endometrial Neoplasms

Breast Neoplasms, Neoplasms

Breast Neoplasms

Clinical Trials

A Study to Test Inavolisib Treatments in Participants With Early-Stage, PIK3CA-Mutated Breast Cancer

A Study of Lerociclib in Participants With Advanced Breast Cancer

OMAHA-015

PF-07104091 as a Single Agent and in Combination Therapy

KAT6

BOUQUET

AMEERA-3

BYLieve

Study for Participants Continuing From Pfizer-sponsored Palbociclib (a Study Medicine) Studies

Efficacy and Safety of Ribociclib in Pre- and Postmenopausal Chinese Women With HR Positive, HER2-negative, Advanced Breast Cancer.

AMALEE

CDK4i

A Study to Learn About the Study Medicine PF-07220060 Together With Letrozole Compared to Letrozole Alone in Women Post Menopause

AMEERA-4

Sirolimus for Injection (Albumin-bound) in Combination With Endocrine Therapy for HR+/HER2- Advanced/Metastatic Breast Cancer Patients Who Have Failed Standard Therapy

RIGHT Choice

TP-II

MCLA-128 With Trastuzumab/Chemotherapy in HER2+ and With Endocrine Therapy in ER+ and Low HER2 Breast Cancer.

BOLERO-4

INGE-B

Study Evaluating Bosutinib-Letrozole Combination Versus Letrozole Alone In Post Menopausal Women With Breast Cancer

Safety and Efficacy of RAD001 (Everolimus) in Combination With Letrozole in the Treatment of Postmenopausal Women With Locally Advanced or Metastatic Breast Cancer

A Study Of Oral Palbociclib (PD-0332991), A CDK4/6 Inhibitor, As Single Agent In Japanese Patients With Advanced Solid Tumors Or In Combination With Letrozole For The First-Line Treatment Of Postmenopausal Japanese Patients With ER (+) HER2 (-) Advanced Breast Cancer

A Study of R1507 in Combination With Letrozole in Postmenopausal Women With Advanced Breast Cancer

Study of BMS-754807 Combined With Letrozole or BMS-754807 Alone in Patients With Hormone Receptor-Positive Breast Cancer and Resistance to Non-Steroidal Aromatase Inhibitors

Study Of Letrozole With Or Without Palbociclib (PD-0332991) For The First-Line Treatment Of Hormone-Receptor Positive Advanced Breast Cancer

Study of High-dose Letrozole Therapy in Postmenopausal Patients With Breast Cancer

A Study for Safety and Effectiveness of IMC-A12 by Itself or Combined With Antiestrogens to Treat Breast Cancer

A Study of Neoadjuvant Letrozole + Taselisib Versus Letrozole + Placebo in Post-Menopausal Women With Breast Cancer (LORELEI)

Comparison Study of Letrozole Alone or Letrozole With Zoledronic Acid in Early Breast Cancer, Neoadjuvant Therapy

Study of Safety and Efficacy of Letrozole Monotherapy as Second-line Endocrine Therapy in Postmenopausal Patients With Advanced Breast Cancer Who Received Previous Anti-estrogen Treatment

deFEND

Randomized Phase II Trial of Letrozole With or Without Dasatinib as First and Second-line Treatment for Hormone Receptor-positive, HER2-negative Post-menopausal Breast Cancer That is Unresectable, Locally Recurrent or Metastatic

Letrozole In Combination With Lapatinib In Neoadjuvant Treatment Of Early Breast Cancer

MONALEESA-1

Efficacy and Safety of BMS-690514 in Combination With Letrozole to Treat Metastatic Breast Cancer

Pre-Operative Study of PF-4691502 With Letrozole Compared To Letrozole Alone In Patients With Early Breast Cancer

BIBW 2992 and Letrozole in Hormonoresistant Metastatic Breast Cancer

Everolimus and Letrozole as Preoperative Therapy of Primary Breast Cancer in Post-menopausal Women

Extension Study of 1.0mg Dose Letrozole Therapy in Postmenopausal Patients With Breast Cancer

A Study of Letrozole in the Treatment of Endometrial Cancer

Study Evaluating Temsirolimus (CCI-779) In Breast Neoplasms

Phase II Study of AS1402 Combined With Letrozole to Treat Breast Cancer