- Conditions
- Breast Cancer
- Interventions
- Palbociclib, Aromatase Inhibitor
- Drug
- Lead sponsor
- Dana-Farber Cancer Institute
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 162 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2024
- U.S. locations
- 10
- States / cities
- San Francisco, California • Indianapolis, Indiana • Boston, Massachusetts + 5 more
Search Results
Search by objective public record fields.
Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.
These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 25–48
of 335
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Breast Cancer
- Interventions
- letrozole, MRI, conventional surgery
- Drug · Procedure
- Lead sponsor
- Alliance for Clinical Trials in Oncology
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 108 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2018
- U.S. locations
- 32
- States / cities
- Los Angeles, California • Oakland, California • San Francisco, California + 22 more
- Conditions
- Breast Cancer, Solid Tumor
- Interventions
- Inavolisib, Fulvestrant, Letrozole, Palbociclib, Metformin, Trastuzumab, Pertuzumab
- Drug
- Lead sponsor
- Genentech, Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 200 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2026
- U.S. locations
- 5
- States / cities
- Boston, Massachusetts • New York, New York • Nashville, Tennessee
- Conditions
- Breast Cancer
- Interventions
- Arm A: Gedatolisib + Palbociclib + Fulvestrant, Arm B: Ribociclib + Fulvestrant, Arm C: Gedatolisib + Palbociclib + Letrozole, Arm D: Ribociclib + Letrozole
- Drug
- Lead sponsor
- Celcuity Inc
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 1,180 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2033
- U.S. locations
- 22
- States / cities
- Duarte, California • Fullerton, California • Los Angeles, California + 19 more
- Conditions
- Small Cell Lung Cancer, Ovarian Cancer, Breast Cancer
- Interventions
- PF-07104091 monotherapy dose escalation, PF-07104091 + palbociclib + fulvestrant, PF-07104091 + palbociclib + letrozole, PF-07104091 monotherapy dose expansion (ovarian), PF-07104091 monotherapy dose expansion (SCLC), PF-07104091 + Fulvestrant (post CDK4/6), PF-0704091 + Fulvestrant (post CDK4/6)
- Drug
- Lead sponsor
- Pfizer
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 157 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2026
- U.S. locations
- 17
- States / cities
- Clive, Iowa • Des Moines, Iowa • Louisville, Kentucky + 7 more
- Conditions
- Metastatic Breast Cancer
- Interventions
- IMC-A12 (cixutumumab), tamoxifen, Anastrozole, Letrozole, Exemestane, Fulvestrant
- Biological · Drug
- Lead sponsor
- Eli Lilly and Company
- Industry
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 93 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2015
- U.S. locations
- 9
- States / cities
- Scottsdale, Arizona • Chicago, Illinois • Westwood, Kansas + 6 more
- Conditions
- Breast Cancer Female
- Interventions
- Tamoxifen, Letrozole, Anastrozole, or Exemestane
- Drug
- Lead sponsor
- University of Virginia
- Other
- Eligibility
- 65 Years and older · Female only
- Enrollment
- 354 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2034
- U.S. locations
- 6
- States / cities
- New Haven, Connecticut • Charlottesville, Virginia • Culpeper, Virginia + 3 more
- Conditions
- Breast Cancer
- Interventions
- LEE011, Letrozole, BYL719
- Drug
- Lead sponsor
- Novartis Pharmaceuticals
- Industry
- Eligibility
- 18 Years to 100 Years · Female only
- Enrollment
- 259 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2027
- U.S. locations
- 10
- States / cities
- San Diego, California • San Francisco, California • Tampa, Florida + 5 more
- Conditions
- Metastatic Breast Cancer
- Interventions
- Capecitabine, Atezolizumab, Ipatasertib, SGN-LIV1A, Bevacizumab, Chemotherapy (Gemcitabine + Carboplatin or Eribulin), Selicrelumab, Tocilizumab, Nab-Paclitaxel, Sacituzumab Govitecan, Abemaciclib, Fulvestrant, Ribociclib (Dose #1), Inavolisib (Dose #1), Trastuzumab Deruxtecan, Ribociclib (Dose #2), Letrozole, Inavolisib (Dose #2), Empagliflozin, Palbociclib, Metformin, Atirmociclib, Giredestrant
- Drug
- Lead sponsor
- Hoffmann-La Roche
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 1,132 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2030
- U.S. locations
- 24
- States / cities
- Duarte, California • Irvine, California • La Jolla, California + 18 more
- Conditions
- Breast Cancer
- Interventions
- letrozole, DHEA, pharmacological study
- Drug · Other
- Lead sponsor
- OHSU Knight Cancer Institute
- Other
- Eligibility
- 60 Years and older
- Enrollment
- 6 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2007 – 2010
- U.S. locations
- 1
- States / cities
- Portland, Oregon
- Conditions
- Advanced HR+/HER2- Breast Cancer
- Interventions
- IEV407, Fulvestrant, Letrozole
- Drug
- Lead sponsor
- Novartis Pharmaceuticals
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 194 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2032
- U.S. locations
- 2
- States / cities
- New Haven, Connecticut • Dallas, Texas
- Conditions
- Breast Neoplasms
- Interventions
- PD-0332991, Letrozole, Placebo
- Drug
- Lead sponsor
- Pfizer
- Industry
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 666 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2023
- U.S. locations
- 136
- States / cities
- Bellflower, California • Beverly Hills, California • Fullerton, California + 83 more
- Conditions
- Breast Cancer Metastatic
- Interventions
- Amcenestrant, Fulvestrant, Anastrozole, Letrozole, Exemestane, Tamoxifen
- Drug
- Lead sponsor
- Sanofi
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 367 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2025
- U.S. locations
- 14
- States / cities
- Birmingham, Alabama • Bakersfield, California • Santa Monica, California + 11 more
- Conditions
- Breast Neoplasms
- Interventions
- LY2835219, Letrozole, Anastrozole, Tamoxifen, Exemestane, Everolimus, Trastuzumab, LY3023414, Fulvestrant, Pertuzumab, Loperamide, Endocrine therapy
- Drug
- Lead sponsor
- Eli Lilly and Company
- Industry
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 198 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2026
- U.S. locations
- 13
- States / cities
- Rogers, Arkansas • La Jolla, California • Boston, Massachusetts + 7 more
- Conditions
- Breast Neoplasms, Neoplasm Metastasis
- Interventions
- Temsirolimus (CCI-779) for 34 months, Letrozole for 34 months
- Drug
- Lead sponsor
- Wyeth is now a wholly owned subsidiary of Pfizer
- Industry
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 1,236 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2004 – 2006
- U.S. locations
- 112
- States / cities
- Hoover, Alabama • Huntsville, Alabama • Tucson, Arizona + 98 more
- Conditions
- Breast Cancer, Solid Tumors, Adult
- Interventions
- STX-478, Fulvestrant, Ribociclib, Palbociclib, Letrozole, Anastrozole, Exemestane, Tamoxifen, Abemaciclib, Imlunestrant, Metformin
- Drug
- Lead sponsor
- Eli Lilly and Company
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 880 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2030
- U.S. locations
- 28
- States / cities
- Los Angeles, California • San Francisco, California • Aurora, Colorado + 22 more
- Conditions
- Breast Cancer
- Interventions
- Letrozole, Placebo
- Drug · Other
- Lead sponsor
- Dana-Farber Cancer Institute
- Other
- Eligibility
- 35 Years to 120 Years · Female only
- Enrollment
- 49 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2002 – 2013
- U.S. locations
- 5
- States / cities
- Boston, Massachusetts • Philadelphia, Pennsylvania • Houston, Texas
- Conditions
- ER-Positive HER2-Negative Breast Cancer
- Interventions
- AZD9833, AZD9833 Placebo, Anastrozole, Anastrozole placebo, Letrozole, Letrozole placebo, Palbociclib, Abemaciclib, Luteinizing hormone-releasing hormone (LHRH) agonist, Ribociclib
- Drug
- Lead sponsor
- AstraZeneca
- Industry
- Eligibility
- 18 Years to 130 Years
- Enrollment
- 315 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2028
- U.S. locations
- 64
- States / cities
- Phoenix, Arizona • Hot Springs, Arkansas • Little Rock, Arkansas + 56 more
- Conditions
- Breast Cancer
- Interventions
- TOL2506, Tamoxifen, Letrozole tablets, Anastrozole Tablets, Exemestane Tablets
- Drug
- Lead sponsor
- Tolmar Inc.
- Industry
- Eligibility
- 18 Years to 51 Years
- Enrollment
- 250 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2030
- U.S. locations
- 17
- States / cities
- Greenbrae, California • Fort Lauderdale, Florida • Lexington, Kentucky + 14 more
- Conditions
- Advanced Breast Cancer
- Interventions
- Initiation of ribociclib, Initiation of letrozole
- Drug
- Lead sponsor
- Shirley Vichy Wang
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 2,495 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2026
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Breast Cancer
- Interventions
- High Dose Vitamin D, Placebo, Standard Dose Vitamin D3, Letrozole 2.5mg
- Dietary Supplement · Drug
- Lead sponsor
- Qamar Khan
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 160 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2011
- U.S. locations
- 2
- States / cities
- Westwood, Kansas • Wichita, Kansas
- Conditions
- Breast Cancer
- Interventions
- Letrozole, Abemaciclib
- Drug
- Lead sponsor
- University of Texas Southwestern Medical Center
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 60 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2028
- U.S. locations
- 2
- States / cities
- Dallas, Texas
- Conditions
- Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage IA Breast Cancer AJCC v8, Anatomic Stage IB Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIA Breast Cancer AJCC v8, Anatomic Stage IIB Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8, Anatomic Stage IIIB Breast Cancer AJCC v8, Anatomic Stage IIIC Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8, Prognostic Stage I Breast Cancer AJCC v8, Prognostic Stage IA Breast Cancer AJCC v8, Prognostic Stage IB Breast Cancer AJCC v8, Prognostic Stage IIA Breast Cancer AJCC v8, Prognostic Stage IIB Breast Cancer AJCC v8, Prognostic Stage III Breast Cancer AJCC v8, Prognostic Stage IIIA Breast Cancer AJCC v8, Prognostic Stage IIIB Breast Cancer AJCC v8, Prognostic Stage IIIC Breast Cancer AJCC v8, Prognostic Stage IV Breast Cancer AJCC v8
- Interventions
- Hydroxychloroquine, Letrozole, Palbociclib
- Drug
- Lead sponsor
- M.D. Anderson Cancer Center
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 15 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2024
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Breast Cancer, Hormone Receptor Positive Tumor
- Interventions
- Durvalumab, Anastrozole 1mg, Letrozole 2.5mg, Exemestane 25 MG
- Drug
- Lead sponsor
- H. Lee Moffitt Cancer Center and Research Institute
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 17 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2021
- U.S. locations
- 1
- States / cities
- Tampa, Florida