Clinical trials: Letrozole, active
Breast Cancer
Study of LEE011, BYL719 and Letrozole in Advanced ER+ Breast Cancer
The purpose of this trial is to inform the future clinical development of the two investigational agents in ER+ breast cancer, LEE011 (CDK4/6 inhibitor) and BYL719 (PI3K-alpha inhibitor).
- Trial name
- NCT01872260
- Testing
- LEE011, Letrozole, BYL719
- Where
- 25 sites in United States, Australia and 6 more
- Volunteers
- 259 people
- Sponsor
- Novartis Pharmaceuticals
Luteinised Follicular Cyst
Effects of Letrozole During the Luteal Phase After Controlled Ovarian Stimulation in Oocyte Donors.
The objective of this trial is to determine whether the use of letrozole during the luteal phase in oocyte donors diminishes the ovarian volume, as well as to evaluate its effect on the duration of the luteal phase, taking into…
- Trial name
- LETRODON (NCT06244745)
- Testing
- Administration of letrozole
- Where
- Spain
- Volunteers
- 152 people, healthy volunteers welcome
- Sponsor
- IVI Madrid
Breast Cancer
Pyrotinib Combined With Trastuzumab, Dalpiciclib, Letrozole Versus TCbHP (Trastuzumab Plus Pertuzumab With Docetaxel and Carboplatin) as Neoadjuvant Treatment in HR +/HER2 + Breast Cancer
This is an investigator-initiated randomized controlled, open-label, multicenter, prospective Phase 2 clinical study. Patients with stage II-III HR +/HER2 + breast cancer were randomly divided into two groups at a ratio of 1:1.
- Trial name
- NCT05638594
- Testing
- Pyrotinib, Trastuzumab, Dalpiciclib
- Where
- China
- Volunteers
- 236 people
- Sponsor
- Shengjing Hospital
Hormone Receptor-Positive, HER2-Negative, Node Positive Breast Cancer
Neoadjuvant Letrozole in Postmenopausal Women With Hormone Receptor-Positive, HER2-Negative, Node Positive, Early-Stage Breast Cancer.
The goal of this clinical trial is to learn whether letrozole, a hormone therapy drug, is effective in treating early-stage, hormone receptor-positive, HER2-negative breast cancer that has spread to nearby lymph nodes in…
- Trial name
- NELOPHER (NCT07394946)
- Testing
- Letrozole
- Where
- Pakistan
- Volunteers
- 126 people
- Sponsor
- Cancer Care Hospital & Research Centre Foundation, Lahore
Hormone Receptor-Positive HER2-Negative Advanced Breast Cancer
Phase II Lenvatinib and Pembrolizumab in Endocrine Resistant Breast Cancer With Letrozole
This is a phase II study testing the combination of Pembrolizumab with Lenvatinib, a multi-kinase inhibitor that has activity against vascular endothelial growth factor receptors 1-3 (VEGFR1-3), fibroblast growth factor receptors…
- Trial name
- LaPemERLA (NCT05286437)
- Testing
- Oral Lenvatinib + Intravenous (IV) Pembrolizumab + Oral Letrozole
- Where
- Singapore
- Volunteers
- 40 people
- Sponsor
- National Cancer Centre, Singapore
Abortion Induced Complicated, Abortion
Second Trimester Abortion With Letrozole and Misoprostol Compared to Misoprostol Alone
Termination of Second trimester Abortion with Letrozole and Misoprostol Compared to Misoprostol Alone
- Trial name
- NCT07767435
- Testing
- · Misoprostol + letrozole, misoprostol alone
- Volunteers
- 80 people
- Sponsor
- Sohag University
Breast Cancer Female
Pre-Operative Window of Adjuvant Endocrine Therapy to Inform RT Decisions in Older Women With Early-Stage Breast Cancer
This is a prospective multisite exploratory study for women ≥ 65 years of age with early stage estrogen receptor positive (ER+) breast cancer.
- Trial name
- POWER (NCT04272801)
- Testing
- tamoxifen, letrozole, anastrozole, or exemestane, Patient reported outcomes
- Where
- 2 sites in United States
- Volunteers
- 84 people
- Sponsor
- Shayna Showalter, MD
Brain Tumor
Study of Letrozole in Recurrent Gliomas
The purpose of this study is to determine the ability of letrozole to penetrate the blood brain barrier and concentrate in gliomas.
- Trial name
- NCT03122197
- Testing
- Letrozole Oral Tablet, Temozolomide
- Where
- United States
- Volunteers
- 39 people
- Sponsor
- University of Cincinnati
Endometriotic Cyst of Ovary
Letrozole in Preventing Recurrence of Endometrioma Following Laparoscopic Ovarian Cystectomy
Endometriosis is a chronic inflammatory disease that affects approximately 10-15% of women of reproductive age. Symptoms include dysmenorrhoea, chronic pelvic pain, dyspareunia and infertility.
- Trial name
- NCT05487092
- Testing
- Letrozole
- Where
- 5 sites in Hong Kong
- Volunteers
- 194 people
- Sponsor
- The University of Hong Kong
Leiomyoma, Uterine, Leiomyoma
Prescription of Letrozole for Uterine Myoma
The PLUM Study is a randomized, double-blinded, 2-arm, parallel-group, placebo-controlled trial is designed to compare the efficacy of letrozole versus placebo on leiomyoma-related symptoms and quality of life as well as…
- Conditions
- Leiomyoma, Uterine, Leiomyoma, Fibroid, Fibroid Uterus
- Trial name
- PLUM (NCT06143631)
- Testing
- Letrozole 2.5mg
- Where
- 5 sites in United States
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Breast Cancer
Molecular Analyses to Predict Pathways of Endocrine Resistance Following Short Term Neoadjuvant Endocrine Treatment in Patients With Hormone Receptor-Positive HER2-negative Breast Cancer
This is an exploratory phase II interventional study that initiates standard-of-care anti-estrogen treatment preoperatively for 4-12 weeks (+/- 2 weeks).
- Trial name
- MAPPER (NCT06361940)
- Testing
- Aromatase inhibitors or tamoxifen
- Where
- United States
- Volunteers
- 185 people
- Sponsor
- Medical College of Wisconsin
Breast Cancer
Clinical Study of SHR-A1811 With or Without Letrozole in Neoadjuvant Therapy for Early-Stage HR-Positive, HER2-Low Breast Cancer
This is a prospective, randomized, multi-cohort, Phase II clinical trial. The study plans to enroll 120 patients with early-stage or locally advanced, HR-positive, HER2-low breast cancer.
- Trial name
- NCT07305246
- Testing
- SHR-A1811, Letrozole, TAC/AC-T
- Volunteers
- 120 people
- Sponsor
- First Hospital of China Medical University
PCOS (Polycystic Ovary Syndrome), Infertility
Letrozole Extended vs Traditional Therapy for Ovulation Induction in Women With PCOS (PROLEx-PCOS)
This randomized clinical trial aims to compare the efficacy and safety of extended letrozole therapy (5 mg/day for 10 days) versus standard letrozole therapy (5 mg/day for 5 days) for ovulation induction in women with polycystic…
- Conditions
- PCOS (Polycystic Ovary Syndrome), Infertility, Anovulation
- Trial name
- PROLEx-PCOS (NCT07159880)
- Testing
- Traditional Letrozole Therapy, Extended Letrozole Therapy
- Where
- Brazil
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- GABRIEL MONTEIRO PINHEIRO
Locally Advanced or Metastatic Breast Cancer
Phase II/III Study of SPH4336 Combined With Letrozole vs Placebo Combined With Letrozole in First-line Treatment of Breast Cancer
This study is designed to evaluate the safety and efficacy of SPH4336 combined with letrozole in first-line treatment of locally advanced or metastatic breast cancer
- Trial name
- NCT05744687
- Testing
- SPH4336 Tablets 400mg
- Where
- 9 sites in China
- Volunteers
- 374 people
- Sponsor
- Shanghai Pharmaceuticals Holding Co., Ltd
Breast Cancer
A Study of Abemaciclib (LY2835219) in Participants With Breast Cancer
The main purpose of this study is to evaluate the efficacy of the study drug abemaciclib in postmenopausal women with hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) locoregionally…
- Trial name
- MONARCH plus (NCT02763566)
- Testing
- Abemaciclib, Anastrozole, Letrozole
- Where
- 45 sites in Brazil, China and 2 more
- Volunteers
- 463 people
- Sponsor
- Eli Lilly and Company
Breast Cancer
A Phase III Clinical Study of HRS-6209 Plus Letrozole as First-line Therapy in Patients With Advanced or Metastatic Breast Cancer
The purpose of this study is to investigate the efficacy and safety of HRS-6209 in combination with letrozole compared with dalpciclib or palbociclib in combination with aromatase inhibitor in patients with advanced or metastatic…
- Trial name
- NCT07894328
- Testing
- HRS-6209 + Letrozole, Dalpciclib/Palbociclib + Letrozole/Anastrozole
- Where
- China
- Volunteers
- 1,050 people
- Sponsor
- Jiangsu HengRui Medicine Co., Ltd.
Advanced HR+/HER2- Breast Cancer
Study of IEV407 as Single Agent or in Combination in Patients With Advanced HR+/HER2- Breast Cancer
The purpose of this study is to evaluate the safety, tolerability and preliminary activity of IEV407 as a single agent and in combination with endocrine therapy (fulvestrant or letrozole) in patients with advanced hormone…
- Trial name
- NCT07604571
- Testing
- IEV407, Fulvestrant, Letrozole
- Where
- 12 sites in United States, Canada and 7 more
- Volunteers
- 194 people
- Sponsor
- Novartis Pharmaceuticals
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
Breast Cancer, Adjuvant Treatment
Evaluating the Use of a Medication 'Switch' vs Guideline-directed Interventions for Relieving Side Effects of Aromatase Inhibitors Among Breast Cancer Patients
Researchers have learned that about 50% of women do not finish the standard 5-year breast cancer treatment with an aromatase inhibitor.
- Conditions
- Breast Cancer, Adjuvant Treatment, Early Stage Breast Cancer
- Trial name
- SWIVEL (NCT07071038)
- Testing
- Switch, Guideline Directed Intervention (GDI)
- Where
- United States
- Volunteers
- 62 people
- Sponsor
- Dartmouth-Hitchcock Medical Center
Breast Cancer
Lenvatinib+Letrozole Versus Fulvestrant in Metastatic ER+/HER2- Breast Cancer, Post Progression on Al + CDK4/6 Inhibitor
Based on the results of the phase Ib/II study, the investigators hypothesize that combining a RET inhibitor lenvatinib with endocrine therapy letrozole improves objective response and progression-free survival compared to…
- Trial name
- NCT05181033
- Testing
- Lenvatinib + Letrozole, Fulvestrant
- Where
- Singapore
- Volunteers
- 120 people
- Sponsor
- National University Hospital, Singapore