Clinical trials: Letrozole
Healthy Volunteers
Letrozole Treatment in Normal and GnRH Deficient Women
This research study involves the use of the drugs Letrozole, GnRH, and NAL-GLU GnRH antagonist. Letrozole is a drug that is approved by the U.S.
- Trial name
- NCT00351416
- Testing
- Letrozole, NAL-GLU GnRH antagonist
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Metastatic Breast Cancer
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
The purpose of this study is to find out what effect the combination of letrozole (brand name: Femara) and dasatinib (brand name: Sprycel) has on metastatic breast cancer compared to letrozole alone
- Trial name
- NCT00696072
- Testing
- Dasatinib, Letrozole
- Where
- 27 sites in United States
- Volunteers
- 120 people
- Sponsor
- Bristol-Myers Squibb
Solid Tumours
To Assess Safety and Effect of Olaparib on the Pharmacokinetics of Anastrozole, Letrozole & Tamoxifen, and Their Effect on Olaparib, in Patients With Advanced Solid Cancer
This is an open-label 2-part Phase I study in patients with advanced solid tumours. Part A of the study (mandatory) will assess the effect of olaparib on the pharmacokinetics (PK) of anastrozole, letrozole and tamoxifen and vice…
- Trial name
- NCT02093351
- Testing
- Olaparib, Tamoxifen, Anastrozole
- Where
- 14 sites in Belgium, Denmark and 3 more
- Volunteers
- 79 people
- Sponsor
- AstraZeneca
Estrogen Receptor Positive, Postmenopausal
Ribociclib and Letrozole in Treating Patients With Relapsed ER Positive Ovarian, Fallopian Tube, Primary Peritoneal, or Endometrial Cancer
This phase II trial studies how well ribociclib and letrozole work in treating patients with estrogen receptor (ER) positive ovarian, fallopian tube, primary peritoneal, or endometrial cancer that has returned (come back) after a…
- Conditions
- Estrogen Receptor Positive, Postmenopausal, Recurrent Fallopian Tube Carcinoma, Recurrent Ovarian Carcinoma
- Trial name
- NCT02657928
- Testing
- Laboratory Biomarker Analysis, Letrozole, Ribociclib
- Where
- 3 sites in United States
- Volunteers
- 40 people
- Sponsor
- Mayo Clinic
Breast Cancer
The Use of Zoledronic Acid to Prevent Cancer-treatment Bone Loss in Post-menopausal Women Receiving Adjuvant Letrozole for Breast Cancer
Post-menopausal breast cancer patients will receive letrozole 2.5 mg daily for the treatment of breast cancer and will be randomized to a treatment group to receive either upfront zoledronic acid 4 mg IV 15-minute infusion every…
- Trial name
- NCT00171314
- Testing
- Zoledronic acid, Letrozole
- Where
- 49 sites in Argentina, Belgium and 7 more
- Volunteers
- 527 people
- Sponsor
- Novartis Pharmaceuticals
Pregnancy, Polycystic Ovary Syndrome
Pregnancy in Polycystic Ovary Syndrome II
The primary research hypothesis is that ovulation induction with an aromatase inhibitor (letrozole) is more likely to result in live birth than ovulation induction with a selective estrogen receptor modulator (clomiphene citrate)…
- Trial name
- PPCOSII (NCT00719186)
- Testing
- Clomiphene citrate, Letrozole
- Where
- 12 sites in United States
- Volunteers
- 750 people
- Sponsor
- Yale University
Breast Cancer
Letrozole Plus Ribociclib or Placebo as Neo-adjuvant Therapy in ER-positive, HER2-negative Early Breast Cancer
The purpose of this study is to determine if ribociclib in combination with letrozole for 24 weeks as neoadjuvant endocrine therapy increases the proportion of women with Pre-operative Endocrine Prognostic Index (PEPI) score of 0…
- Trial name
- FELINE (NCT02712723)
- Testing
- Letrozole, Ribociclib
- Where
- 13 sites in United States
- Volunteers
- 121 people
- Sponsor
- Qamar Khan
Advanced, Metastatic Breast Cancer
Study of Efficacy and Safety of LEE011 in Postmenopausal Women With Advanced Breast Cancer
The primary purpose of this study was to assess the efficacy of ribociclib, as measured by progression free survival (PFS), in postmenopausal women with hormone receptor positive (HR+), human epidermal growth factor receptor 2…
- Trial name
- MONALEESA-2 (NCT01958021)
- Testing
- Ribociclib, Letrozole
- Where
- 221 sites in United States, Argentina and 27 more
- Volunteers
- 668 people
- Sponsor
- Novartis Pharmaceuticals
Breast Cancer, Breast Neoplasm
Reversing Hormone Resistance in Advanced Breast Cancer With Pazopanib
The purpose of this study is to evaluate the clinical benefit rate at 12 weeks from the addition of pazopanib to a non-steroidal aromatase inhibitor (NSAI) (letrozole or anastrozole) in patients with hormone receptor positive…
- Trial name
- NCT01466972
- Testing
- Pazopanib
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Hope Rugo, MD
Early Breast Cancer
A Pharmacodynamics Pre-surgical Study of LEE011 in Early Breast Cancer Patients (MONALEESA-1)
This is a multi-center, open-label Phase II randomized pre-surgical pharmacodynamics study.
- Trial name
- MONALEESA-1 (NCT01919229)
- Testing
- LEE011 (ribociclib), letrozole
- Where
- 7 sites in United States, Singapore and 1 more
- Volunteers
- 14 people
- Sponsor
- Novartis Pharmaceuticals
Neoplasms, Breast Neoplasms
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
This study is comprised of two portions: a Phase 1 portion and a Phase 2 portion. The Phase 1 portion is a single-country, non-randomized, open label, clinical trial which will evaluate the safety, tolerability, preliminary…
- Trial name
- NCT01684215
- Testing
- PD-0332991, letrozole
- Where
- 16 sites in Japan
- Volunteers
- 61 people
- Sponsor
- Pfizer
Breast Cancer
A Companion Sample Collection Protocol to Support the Discovery of Breast Cancer Aberrations With Treatment of CDK4/6 Therapy/LEE011/Ribociclib
This study was a companion study to CLEE011A2404 which provided the opportunity for the collection of tumor tissue samples to better understand relevant mutations and the mechanisms responsible for resistance to treatment.
- Trial name
- NCT03050398
- Testing
- Ribociclib, letrozole
- Where
- 6 sites in United States
- Volunteers
- 8 people
- Sponsor
- Novartis Pharmaceuticals
Breast Cancer
Study Assessing the Efficacy and Safety of Alpelisib Plus Fulvestrant or Letrozole, Based on Prior Endocrine Therapy, in Patients With PIK3CA Mutant, HR+, HER2- Advanced Breast Cancer Who Have Progressed on or After Prior Treatments
This was a Phase II, multicenter, open-label, three-cohort, non-comparative study of alpelisib plus endocrine therapy (either fulvestrant or letrozole) in subjects (pre- and post-menopausal women and men) with HR-positive…
- Trial name
- BYLieve (NCT03056755)
- Testing
- Alpelisib, Fulvestrant, Letrozole
- Where
- 94 sites in United States, Argentina and 17 more
- Volunteers
- 383 people
- Sponsor
- Novartis Pharmaceuticals
Breast Cancer
Combination of Letrozole, Everolimus and TRC105 in Postmenopausal Women With Hormone-Receptor Positive and Her2 Negative Breast Cancer
This study will test how well a new combination of three drugs (Letrozole, Everolimus, and TRC105) is tolerated and how well it works in Stage 2 and 3 breast cancer when given prior to definitive surgery.
- Trial name
- NCT02520063
- Testing
- Letrozole, Everolimus, TRC105
- Where
- United States
- Volunteers
- 15 people
- Sponsor
- University of Alabama at Birmingham
Breast Neoplasms, Endocrine Breast Diseases
Letrozole and Lapatinib Followed by Everolimus in Women With Advanced Breast Cancer
About a third of patients with breast cancer are usually treated by hormone pills called tamoxifen and aromatase inhibitors. Aromatase inhibitors are drugs that stop female hormone production.
- Conditions
- Breast Neoplasms, Endocrine Breast Diseases, Neoplasm Metastasis
- Trial name
- NCT01499160
- Testing
- letrozole, lapatinib, everolimus
- Where
- United States
- Volunteers
- 7 people
- Sponsor
- University of Maryland, Baltimore
Breast Cancer Invasive Nos
TRial on the Endocrine Activity of Neoadjuvant Degarelix
The purpose of the this study is to investigate the anti-tumor activity and tolerability of the study medications Degarelix and Triptorelin in premenopausal women receiving preoperative treatment with Letrozole.
- Trial name
- TREND (NCT02005887)
- Testing
- triptorelin, degarelix, letrozole
- Where
- 7 sites in Italy
- Volunteers
- 51 people
- Sponsor
- ETOP IBCSG Partners Foundation
Polycystic Ovary Syndrome, Infertility
Combined Letrozole and Clomid in Women With Infertility and PCOS
This study evaluates the addition of clomid to letrozole for the treatment of infertility in women with polycystic ovary syndrome.
- Trial name
- NCT02802865
- Testing
- Clomiphene, Letrozole
- Where
- United States
- Volunteers
- 70 people
- Sponsor
- Rachel Mejia
Breast Cancer
A Study to Learn About the Study Medicine PF-07220060 Together With Letrozole Compared to Letrozole Alone in Women Post Menopause
The purpose of this study is to learn about the effects of the study medicine PF-07220060 plus letrozole, compared with the effects of taking letrozole alone without PF-07220060 for treatment of breast cancer.
- Trial name
- NCT06465368
- Testing
- PF-07220060, letrozole
- Where
- 51 sites in United States, Australia and 11 more
- Volunteers
- 121 people
- Sponsor
- Pfizer
Estrogen Receptor-positive Breast Cancer, HER2-negative Breast Cancer
Goserelin and Letrozole or Anastrozole in Premenopausal Patients With Stage II-III Estrogen Receptor-Positive Breast Cancer
This phase II trial studies the impact of a presurgical endocrine therapy, consisting of goserelin with letrozole or anastrozole on the treatment of premenopausal patients with stage II-III estrogen receptor-positive (ER+) and…
- Conditions
- Estrogen Receptor-positive Breast Cancer, HER2-negative Breast Cancer, Stage II Breast Cancer, Stage IIIA Breast Cancer
- Trial name
- NCT01368263
- Testing
- goserelin acetate, letrozole, anastrozole
- Where
- United States
- Volunteers
- 8 people
- Sponsor
- Washington University School of Medicine
Breast Cancer
Sorafenib and Letrozole, Anastrozole, or Exemestane in Treating Postmenopausal Women With Estrogen Receptor-Positive and/or Progesterone Receptor-Positive Metastatic Breast Cancer
RATIONALE: Sorafenib may stop the growth of tumor cells by blocking blood flow to the tumor and by blocking some of the enzymes needed for cell growth. Estrogen can cause the growth of breast cancer cells.
- Trial name
- NCT00573755
- Testing
- anastrozole, exemestane, letrozole
- Where
- 3 sites in United States
- Volunteers
- 4 people
- Sponsor
- Mayo Clinic