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ClinicalTrials.gov public records Last synced Oct 19, 2026, 6:39 PM EDT

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Showing 1–24 of 291 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Tamoxifen Clear all
Completed Phase 2 Interventional Results available

Doxorubicin and Cyclophosphamide Followed by Paclitaxel, Trastuzumab, and Lapatinib in Treating Patients With HER2/Neu-Overexpressed Breast Cancer

NCT00482391
View directory record Official record
Conditions
Breast Cancer
Interventions
trastuzumab, cyclophosphamide, doxorubicin hydrochloride, lapatinib ditosylate, paclitaxel, laboratory biomarker analysis
Biological · Drug · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years to 120 Years
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
2
States / cities
Boston, Massachusetts • New York, New York
Source: ClinicalTrials.gov public record
Updated May 12, 2017 · Synced Oct 19, 2026, 6:39 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effect of Tamoxifen on Breast Density in Premenopausal Women With Breast Cancer or High Risk for Breast Cancer

NCT00086749
View directory record Official record
Conditions
Breast Cancer
Interventions
Not listed
Lead sponsor
Northwestern University
Other
Eligibility
20 Years to 45 Years · Female only
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2007
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 11, 2012 · Synced Oct 19, 2026, 6:39 PM EDT
Completed No phase listed Observational

Replication of the HORIZON Pivotal Fracture Trial in Healthcare Claims Data

NCT04736693
View directory record Official record
Conditions
Osteoporosis
Interventions
Raloxifene, Zoledronic Acid
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
65 Years and older · Female only
Enrollment
18,028 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 27, 2023 · Synced Oct 19, 2026, 6:39 PM EDT
Completed No phase listed Observational

A Pilot Study of Varying Doses of Tamoxifen in the Setting of Genetic Polymorphisms of CYP2D6

NCT00900744
View directory record Official record
Conditions
Breast Cancer
Interventions
Tamoxifen
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 25, 2017 · Synced Oct 19, 2026, 6:39 PM EDT
Completed Phase 2 Interventional

Gefitinib With or Without Tamoxifen in Treating Patients With Tamoxifen-Resistant Metastatic Breast Cancer

NCT00080743
View directory record Official record
Conditions
Breast Cancer
Interventions
gefitinib, tamoxifen citrate, Placebo
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Aug 6, 2009 · Synced Oct 19, 2026, 6:39 PM EDT
Not listed Not applicable Interventional

Fulvestrant or Tamoxifen in Treating Postmenopausal Women Who Are Undergoing Surgery for Ductal Carcinoma in Situ of the Breast

NCT00126464
View directory record Official record
Conditions
Breast Cancer
Interventions
fulvestrant, tamoxifen citrate, conventional surgery, neoadjuvant therapy
Drug · Procedure
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2004
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 6, 2013 · Synced Oct 19, 2026, 6:39 PM EDT
Completed Phase 3 Interventional

Tamoxifen With or Without Octreotide in Treating Postmenopausal Women With Stage I, Stage II, or Stage III Breast Cancer

NCT00002864
View directory record Official record
Conditions
Breast Cancer
Interventions
octreotide acetate, tamoxifen citrate
Drug
Lead sponsor
NCIC Clinical Trials Group
Network
Eligibility
Up to 120 Years · Female only
Enrollment
667 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2010
U.S. locations
2
States / cities
Duluth, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 1, 2020 · Synced Oct 19, 2026, 6:39 PM EDT
Completed Phase 2 Interventional

Radiation Therapy and Tamoxifen in Treating Adults With Newly Diagnosed Supratentorial Glioblastoma Multiforme

NCT00006388
View directory record Official record
Conditions
Brain and Central Nervous System Tumors
Interventions
tamoxifen citrate, radiation therapy
Drug · Radiation
Lead sponsor
Radiation Therapy Oncology Group
Network
Eligibility
18 Years and older
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2000
U.S. locations
237
States / cities
Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 184 more
Source: ClinicalTrials.gov public record
Updated Oct 22, 2020 · Synced Oct 19, 2026, 6:39 PM EDT
Completed Phase 3 Interventional Results available

Tamoxifen Compared With Thalidomide in Treating Women With Ovarian Epithelial Cancer, Fallopian Tube Cancer, or Primary Peritoneal Cancer

NCT00041080
View directory record Official record
Conditions
Fallopian Tube Cancer, Primary Peritoneal Cavity Cancer, Recurrent Ovarian Epithelial Cancer, Stage III Ovarian Epithelial Cancer, Stage IV Ovarian Epithelial Cancer
Interventions
tamoxifen citrate, thalidomide, laboratory biomarker analysis
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Female only
Enrollment
139 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 30, 2019 · Synced Oct 19, 2026, 6:39 PM EDT
Terminated No phase listed Observational

Observational Study Analyzing RNA Expression Of Endometrial Biopsy Samples From Placebo, Bazedoxifene/Conjugated Estrogens And Raloxifene

NCT00847821
View directory record Official record
Conditions
Postmenopause
Interventions
Bazedoxifene 10 mg/CE 0.625 mg, Bazedoxifene 20 mg/CE 0.625 mg, Bazedoxifene 40 mg/CE 0.625 mg, Bazedoxifene 10 mg/CE 0.45 mg, Bazedoxifene 20 mg/CE 0.45 mg, Bazedoxifene 40 mg/CE 0.45 mg, Raloxifene 60 mg, Placebo
Drug
Lead sponsor
Wyeth is now a wholly owned subsidiary of Pfizer
Industry
Eligibility
40 Years to 75 Years · Female only
Enrollment
185 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
22
States / cities
Fort Myers, Florida • Gainesville, Florida • New Port Richey, Florida + 19 more
Source: ClinicalTrials.gov public record
Updated Sep 6, 2010 · Synced Oct 19, 2026, 6:39 PM EDT
Completed Not applicable Interventional Results available

Hormone Therapy Or Chemotherapy Before Surgery Based on Gene Expression Analysis in Treating Patients With Breast Cancer

NCT01293032
View directory record Official record
Conditions
Ductal Breast Carcinoma in Situ, Lobular Breast Carcinoma in Situ, Stage II Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer
Interventions
Neoadjuvant Therapy, Therapeutic Conventional Surgery, Laboratory Biomarker Analysis, Gene Expression Analysis, Systemic Chemotherapy, Tamoxifen Citrate, Aromatase Inhibition Therapy
Procedure · Other · Genetic + 1 more
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older · Female only
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
7
States / cities
Washington D.C., District of Columbia • Charlotte, North Carolina • Greensboro, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 12, 2016 · Synced Oct 19, 2026, 6:39 PM EDT
Completed Phase 3 Interventional

Phase III Comparison of Adjuvant Chemotherapy W/High-Dose Cyclophosphamide Plus Doxorubicin (AC) vs Sequential Doxorubicin Fol by Cyclophosphamide (A-C) in High Risk Breast Cancer Patients With 0-3 Positive Nodes (Intergroup, CALGB 9394)

NCT00590785
View directory record Official record
Conditions
High Risk, Breast Cancer, Positive Nodes, Cyclophosphamide, Doxorubicin
Interventions
Doxorubicin, Cyclophosphamide, G-CSF, tamoxifen, ciprofloxacin
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 25, 2017 · Synced Oct 19, 2026, 6:39 PM EDT
Completed No phase listed Observational

S8814A Biomarkers in Predicting Outcome in Postmenopausal Women With Hormone Receptor-Positive, Node-Positive Breast Cancer Treated With Tamoxifen With or Without Cyclophosphamide, Doxorubicin, and Fluorouracil

NCT00897091
View directory record Official record
Conditions
Breast Cancer
Interventions
comparative genomic hybridization, microarray analysis, reverse transcriptase-polymerase chain reaction, diagnostic laboratory biomarker analysis
Genetic · Other
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years and older · Female only
Enrollment
750 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Maywood, Illinois
Source: ClinicalTrials.gov public record
Updated May 30, 2013 · Synced Oct 19, 2026, 6:39 PM EDT
Completed Phase 3 Interventional

Phase III Study of Atamestane Plus Toremifene Versus Letrozole in Advanced Breast Cancer

NCT00044291
View directory record Official record
Conditions
Breast Neoplasms, Neoplasms, Hormone-dependent
Interventions
atamestane, toremifene, letrozole, aromatase inhibition, hormone therapy, endocrine therapy, antiestrogen therapy
Drug · Procedure
Lead sponsor
Intarcia Therapeutics
Industry
Eligibility
18 Years and older · Female only
Enrollment
865 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2006
U.S. locations
17
States / cities
Lake Havasu City, Arizona • Tucson, Arizona • Greenbrae, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jul 31, 2015 · Synced Oct 19, 2026, 6:39 PM EDT
Completed Phase 3 Interventional

Exemestane in Treating Postmenopausal Women With Resected Stage I, Stage II, or Stage IIIA Breast Cancer Who Have Completed 5 Years of Tamoxifen

NCT00016432
View directory record Official record
Conditions
Breast Cancer
Interventions
exemestane, Placebo
Drug
Lead sponsor
NSABP Foundation Inc
Network
Eligibility
18 Years and older · Female only
Enrollment
1,598 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2011
U.S. locations
150
States / cities
Huntsville, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 129 more
Source: ClinicalTrials.gov public record
Updated Apr 19, 2011 · Synced Oct 19, 2026, 6:39 PM EDT
Completed Phase 2 Interventional Results available

Combination Chemotherapy and Peripheral Blood Stem Cell Transplant Followed By Aldesleukin and Sargramostim in Treating Patients With Inflammatory Stage IIIB or Metastatic Stage IV Breast Cancer

NCT00003199
View directory record Official record
Conditions
Estrogen Receptor-negative Breast Cancer, Estrogen Receptor-positive Breast Cancer, Inflammatory Breast Cancer, Male Breast Cancer, Progesterone Receptor-negative Breast Cancer, Progesterone Receptor-positive Breast Cancer, Stage IIIB Breast Cancer, Stage IV Breast Cancer
Interventions
tamoxifen citrate, busulfan, thiotepa, melphalan, aldesleukin, sargramostim, peripheral blood stem cell transplantation, radiation therapy
Drug · Biological · Procedure + 1 more
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
19 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2009
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 12, 2017 · Synced Oct 19, 2026, 6:39 PM EDT
Recruiting Phase 2 Interventional

Memantine +/- Raloxifene for Cognitive Preservation After Radiation Therapy to the Brain

NCT07470606
View directory record Official record
Conditions
Brain Tumor
Interventions
Memantine, Raloxifene
Drug
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years and older
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Oct 19, 2026, 6:39 PM EDT
Completed Phase 2 Interventional Results available

Trial of Ra-223 Dichloride in Combination With Hormonal Therapy and Denosumab in the Treatment of Patients With Hormone-Positive Bone-Dominant Metastatic Breast Cancer

NCT02366130
View directory record Official record
Conditions
Breast Cancer
Interventions
Ra-223 dichloride, Denosumab, Hormone Therapy
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 7, 2021 · Synced Oct 19, 2026, 6:39 PM EDT
Completed No phase listed Observational

The Ultrasound Study of Tamoxifen

NCT01582074
View directory record Official record
Conditions
Breast Neoplasms
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
30 Years to 70 Years · Female only
Enrollment
247 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 28, 2020 · Synced Oct 19, 2026, 6:39 PM EDT
Active, not recruiting Phase 2 Interventional

A Study of Flibanserin in Breast Cancer Survivors on Tamoxifen or Aromatase Inhibitors

NCT03707340
View directory record Official record
Conditions
Breast Cancer, Hyposexual Desire Disorder
Interventions
Flibanserin Pill
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
21 Years and older · Female only
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
7
States / cities
Norwalk, Connecticut • Basking Ridge, New Jersey • Middletown, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Oct 19, 2026, 6:39 PM EDT
Terminated Phase 3 Interventional

Combination Chemotherapy, Surgery, and Radiation Therapy With or Without Dexrazoxane and Trastuzumab in Treating Women With Stage III or Stage IV Breast Cancer

NCT00016276
View directory record Official record
Conditions
Cardiac Toxicity, Inflammatory Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IV Breast Cancer
Interventions
dexrazoxane hydrochloride, doxorubicin hydrochloride, cyclophosphamide, paclitaxel, trastuzumab, therapeutic conventional surgery, radiation therapy, tamoxifen citrate, laboratory biomarker analysis
Drug · Biological · Procedure + 2 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
396 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2001
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 16, 2013 · Synced Oct 19, 2026, 6:39 PM EDT
Recruiting Phase 2 Interventional

Finding the Best Tamoxifen Dose for Breast Cancer Risk Reduction in Premenopausal Women, RENAISSANCE Trial

NCT06184750
View directory record Official record
Conditions
Breast Atypical Ductal Hyperplasia, Breast Atypical Lobular Hyperplasia, Breast Carcinoma, Breast Ductal Carcinoma In Situ, Breast Lobular Carcinoma In Situ, Estrogen Receptor-Positive Breast Carcinoma
Interventions
Biopsy Procedure, Biospecimen Collection, Mammography, Questionnaire Administration, Tamoxifen
Procedure · Other · Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 55 Years · Female only
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
11
States / cities
Tucson, Arizona • Chicago, Illinois • Kansas City, Kansas + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 27, 2026 · Synced Oct 19, 2026, 6:39 PM EDT
Completed Phase 2 Interventional

Soy Protein Supplement In Treating Hot Flashes in Postmenopausal Women Receiving Tamoxifen for Breast Disease

NCT00031720
View directory record Official record
Conditions
Breast Cancer, Hot Flashes, Hot Flushes
Interventions
soy protein, isoflavones, Tamoxifen, Placebo
Dietary Supplement · Drug · Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older · Female only
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2013
U.S. locations
14
States / cities
Rockford, Illinois • Elkhart, Indiana • Kokomo, Indiana + 9 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2016 · Synced Oct 19, 2026, 6:39 PM EDT
Completed No phase listed Observational Results available

Loss of Grip Strength, BMI, and Adjuvant Endocrine Therapy Breast Cancer

NCT01896050
View directory record Official record
Conditions
Breast Cancer, Arthralgia, Obesity
Interventions
anastrozole, letrozole, exemestane, Tamoxifen
Drug
Lead sponsor
University of Michigan Rogel Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 28, 2016 · Synced Oct 19, 2026, 6:39 PM EDT