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Showing 1–24 of 288 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Medullary Breast Carcinoma Clear all
Completed No phase listed Observational

Effects of Chemotherapy on Intestinal Bacteria in Patients With Newly Diagnosed Breast Cancer

NCT02370277
View directory record Official record
Conditions
Ductal Breast Carcinoma In Situ, Invasive Breast Carcinoma, Stage I Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage IIIA Breast Cancer
Interventions
Cytology Specimen Collection Procedure, Laboratory Biomarker Analysis, Questionnaire Administration
Other
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 17, 2019 · Synced Jun 25, 2026, 1:24 PM EDT
Active, not recruiting Phase 3 Interventional Results available

Tamoxifen Citrate, Letrozole, Anastrozole, or Exemestane With or Without Chemotherapy in Treating Patients With Invasive RxPONDER Breast Cancer

NCT01272037
View directory record Official record
Conditions
Breast Ductal Carcinoma In Situ, Invasive Breast Carcinoma, Multicentric Breast Carcinoma, Multifocal Breast Carcinoma, Synchronous Bilateral Breast Carcinoma
Interventions
Anastrozole, Exemestane, Laboratory Biomarker Analysis, Letrozole, Quality-of-Life Assessment, Systemic Chemotherapy, Tamoxifen Citrate
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
5,018 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2027
U.S. locations
1436
States / cities
Anniston, Alabama • Birmingham, Alabama • Mobile, Alabama + 882 more
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Jun 25, 2026, 1:24 PM EDT
Terminated Phase 2 Interventional Results available

Radiation Therapy in Treating Post-Menopausal Women With Early Stage Breast Cancer Undergoing Surgery

NCT01754519
View directory record Official record
Conditions
Ductal Breast Carcinoma In Situ, Estrogen Receptor Negative, Estrogen Receptor Positive, HER2/Neu Negative, Invasive Cribriform Breast Carcinoma, Invasive Ductal Carcinoma, Not Otherwise Specified, Lobular Breast Carcinoma In Situ, Mucinous Breast Carcinoma, Papillary Breast Carcinoma, Progesterone Receptor Positive, Stage I Breast Cancer, Stage II Breast Cancer, Stage IIIA Breast Cancer, Stage IIIC Breast Cancer, Tubular Breast Carcinoma
Interventions
Therapeutic Conventional Surgery, Radiation Therapy, Laboratory Biomarker Analysis, Quality-of-Life Assessment
Procedure · Radiation · Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
50 Years and older · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jul 6, 2017 · Synced Jun 25, 2026, 1:24 PM EDT
Active, not recruiting Phase 2 Interventional Results available

Hypofractionated Radiation Therapy or Standard Radiation Therapy in Treating Patients With Ductal Breast Carcinoma In Situ or Early Invasive Breast Cancer

NCT01266642
View directory record Official record
Conditions
Ductal Breast Carcinoma In Situ, Invasive Breast Carcinoma, Stage I Breast Cancer AJCC v6, Stage IA Breast Cancer AJCC v7, Stage IB Breast Cancer AJCC v7, Stage II Breast Cancer AJCC v6 and v7, Stage IIA Breast Cancer AJCC v6 and v7, Stage IIB Breast Cancer AJCC v6 and v7
Interventions
External Beam Radiation Therapy, Hypofractionated Radiation Therapy, Laboratory Biomarker Analysis, Quality-of-Life Assessment, Questionnaire Administration, Whole Breast Irradiation
Radiation · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
40 Years and older · Female only
Enrollment
301 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2040
U.S. locations
7
States / cities
Gilbert, Arizona • Orlando, Florida • Conroe, Texas + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced Jun 25, 2026, 1:24 PM EDT
Completed Not applicable Interventional

Venlafaxine With or Without Zolpidem in Treating Hot Flashes and Associated Sleep Disorders in Women With Breast Cancer OR at High Risk for Developing Breast Cancer

NCT00084669
View directory record Official record
Conditions
Breast Cancer, Hot Flashes, Sleep Disorders
Interventions
venlafaxine, zolpidem tartrate, management of therapy complications
Drug · Procedure
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 27, 2010 · Synced Jun 25, 2026, 1:24 PM EDT
Active, not recruiting Phase 1 Interventional Results available

Phase I Trial of Endoxifen Gel Versus Placebo in Women Undergoing Breast Surgery

NCT03317405
View directory record Official record
Conditions
Breast Carcinoma In Situ, Breast Ductal Carcinoma In Situ, Breast Lobular Carcinoma In Situ, Stage I Breast Cancer AJCC v7, Stage IA Breast Cancer AJCC v7, Stage IB Breast Cancer AJCC v7, Stage II Breast Cancer AJCC v6 and v7, Stage IIA Breast Cancer AJCC v6 and v7, Stage IIB Breast Cancer AJCC v6 and v7, Stage III Breast Cancer AJCC v7, Stage IIIA Breast Cancer AJCC v7, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7
Interventions
Endoxifen Hydrochloride, Placebo Administration, Questionnaire Administration
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
3
States / cities
Los Angeles, California • Chicago, Illinois • New York, New York
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Jun 25, 2026, 1:24 PM EDT
Completed Not applicable Interventional Results available

Magnetic Resonance Imaging in Women Recently Diagnosed With Unilateral Breast Cancer

NCT00058058
View directory record Official record
Conditions
Breast Cancer, Contralateral Breast Cancer
Interventions
MRI
Procedure
Lead sponsor
American College of Radiology Imaging Network
Network
Eligibility
18 Years to 120 Years · Female only
Enrollment
1,007 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
19
States / cities
Little Rock, Arkansas • Los Angeles, California • San Francisco, California + 15 more
Source: ClinicalTrials.gov public record
Updated Jul 15, 2019 · Synced Jun 25, 2026, 1:24 PM EDT
Active, not recruiting Phase 2 Interventional

Metformin and Nightly Fasting in Women With Early Breast Cancer

NCT05023967
View directory record Official record
Conditions
Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Breast Ductal Carcinoma In Situ, Invasive Breast Carcinoma
Interventions
Biospecimen Collection, Extended Release Metformin Hydrochloride, Monitoring, Nutritional Assessment, Short-Term Fasting
Procedure · Drug · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 4, 2026 · Synced Jun 25, 2026, 1:24 PM EDT
Active, not recruiting Phase 3 Interventional Results available

Hypofractionated Radiation Therapy After Mastectomy in Preventing Recurrence in Patients With Stage IIa-IIIa Breast Cancer

NCT03414970
View directory record Official record
Conditions
Ductal Breast Carcinoma, Invasive Breast Carcinoma, Lobular Breast Carcinoma, Medullary Breast Carcinoma, Stage II Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage IIIA Breast Cancer, Tubular Breast Carcinoma
Interventions
Radiation Therapy, Questionnaire Administration, Quality-of-Life Assessment, Laboratory Biomarker Analysis, Hypofractionated Radiation Therapy
Radiation · Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
898 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2035
U.S. locations
846
States / cities
Anchorage, Alaska • Fairbanks, Alaska • Kingman, Arizona + 544 more
Source: ClinicalTrials.gov public record
Updated Feb 23, 2026 · Synced Jun 25, 2026, 1:24 PM EDT
Completed No phase listed Observational

Pain After Tumescent Mastectomy or Standard Mastectomy in Women With Stage I, Stage II, or Stage III Breast Cancer

NCT00859157
View directory record Official record
Conditions
Breast Cancer, Pain, Perioperative/Postoperative Complications
Interventions
therapeutic conventional surgery
Procedure
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 120 Years · Female only
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jun 20, 2017 · Synced Jun 25, 2026, 1:24 PM EDT
Completed No phase listed Observational Results available

Impact of Radiation Therapy on Breast Conservation in DCIS

NCT02248662
View directory record Official record
Conditions
DCIS
Interventions
Not listed
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
21 Years and older · Female only
Enrollment
3,436 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
4
States / cities
Boston, Massachusetts • Hanover, New Hampshire • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 5, 2019 · Synced Jun 25, 2026, 1:24 PM EDT
Completed Phase 3 Interventional

Octreotide, Tamoxifen, and Chemotherapy in Treating Women With Breast Cancer

NCT00002967
View directory record Official record
Conditions
Breast Cancer
Interventions
cyclophosphamide, doxorubicin hydrochloride, octreotide pamoate, tamoxifen citrate
Drug
Lead sponsor
NSABP Foundation Inc
Network
Eligibility
Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2006
U.S. locations
106
States / cities
Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 87 more
Source: ClinicalTrials.gov public record
Updated Jun 20, 2013 · Synced Jun 25, 2026, 1:24 PM EDT
Completed No phase listed Observational

Contrast-Enhanced MRI for the Characterization of Ductal Carcinoma in Situ (DCIS)

NCT00804128
View directory record Official record
Conditions
Breast Cancer
Interventions
Magnetic Resonance Imaging (MRI), Gadavist
Procedure · Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older · Female only
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2024
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 18, 2024 · Synced Jun 25, 2026, 1:24 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

CyberKnife Stereotactic Accelerated Partial Breast Irradiation (SAPBI)

NCT02365714
View directory record Official record
Conditions
Breast Cancer, DCIS, Invasive Ductal Carcinoma
Interventions
CK Stereotactic Accelerated Partial Breast Irradiation
Radiation
Lead sponsor
Georgetown University
Other
Eligibility
50 Years to 99 Years · Female only
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Apr 12, 2018 · Synced Jun 25, 2026, 1:24 PM EDT
Completed Phase 3 Interventional

Genetic Counseling or Usual Care in Helping Women With Newly Diagnosed Ductal Carcinoma In Situ or Stage I, Stage II, or Stage IIIA Breast Cancer Make Treatment Decisions

NCT00262899
View directory record Official record
Conditions
Breast Cancer, Psychosocial Effects of Cancer and Its Treatment
Interventions
counseling intervention, educational intervention, psychosocial assessment and care
Behavioral · Other · Procedure
Lead sponsor
Georgetown University
Other
Eligibility
18 Years and older · Female only
Enrollment
331 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2011
U.S. locations
4
States / cities
Washington D.C., District of Columbia • Chevy Chase, Maryland • Hackensack, New Jersey + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 6, 2013 · Synced Jun 25, 2026, 1:24 PM EDT
Completed Phase 2 Interventional

Effect of Fluvastatin on Biomarkers in Women Who Are Undergoing Surgery for Ductal Carcinoma In Situ or Stage I Breast Cancer

NCT00416403
View directory record Official record
Conditions
Breast Cancer
Interventions
fluvastatin sodium, Breast Cancer Surgery Only - Arm III
Drug · Procedure
Lead sponsor
University of California, San Francisco
Other
Eligibility
Female only
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
4
States / cities
San Francisco, California • Chicago, Illinois • Boston, Massachusetts + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 12, 2012 · Synced Jun 25, 2026, 1:24 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Tamoxifen or Letrozole in Treating Women With Ductal Carcinoma in Situ

NCT00290745
View directory record Official record
Conditions
Breast Cancer
Interventions
letrozole, tamoxifen citrate, conventional surgery, neoadjuvant therapy
Drug · Procedure
Lead sponsor
University of California, San Francisco
Other
Eligibility
Female only
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2011
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 3, 2020 · Synced Jun 25, 2026, 1:24 PM EDT
Not listed Phase 2 Interventional Results available

Cryoablation Therapy in Treating Patients With Invasive Ductal Breast Cancer

NCT00723294
View directory record Official record
Conditions
Breast Cancer
Interventions
cryosurgery, therapeutic conventional surgery
Procedure
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2008
U.S. locations
16
States / cities
Burbank, California • Bridgeport, Connecticut • Tampa, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Aug 13, 2017 · Synced Jun 25, 2026, 1:24 PM EDT
Completed Phase 2 Interventional

Anastrozole in Treating Postmenopausal Women With DCIS or Stage I-III Breast Cancer

NCT00244959
View directory record Official record
Conditions
Breast Cancer
Interventions
anastrozole, adjuvant therapy
Drug · Procedure
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older · Female only
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 18, 2013 · Synced Jun 25, 2026, 1:24 PM EDT
Completed No phase listed Observational

Molecular Genetic Basis of Invasive Breast Cancer Risk Associated With Lobular Carcinoma in Situ

NCT00581750
View directory record Official record
Conditions
Breast Cancer, Lobular Carcinoma, Invasive Breast Cancer
Interventions
Tissue specimen
Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
Female only
Enrollment
550 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 1, 2021 · Synced Jun 25, 2026, 1:24 PM EDT
Suspended Phase 3 Interventional

Testing Low Dose Tamoxifen for Invasive Breast Cancer, LoTam Trial

NCT06671912
View directory record Official record
Conditions
Anatomic Stage 0 Breast Cancer AJCC v8, Anatomic Stage 1 Breast Cancer AJCC v8, Anatomic Stage IIA Breast Cancer AJCC v8, Estrogen Receptor-Positive Breast Carcinoma, HER2-Negative Breast Carcinoma, Breast Ductal Carcinoma In Situ, Breast Lobular Carcinoma In Situ
Interventions
Anastrozole, Letrozole, Exemestane, Tamoxifen, Mammogram, Magnetic Resonance Imaging, Dual X-ray Absorptiometry, Biospecimen Collection, Questionnaire Administration
Drug · Procedure · Biological + 1 more
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
1,556 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
729
States / cities
Anchorage, Alaska • Gilbert, Arizona • Goodyear, Arizona + 560 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2026 · Synced Jun 25, 2026, 1:24 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Identifying and Caring for Individuals With Inherited Cancer Syndrome

NCT04494945
View directory record Official record
Conditions
BRCA1/2-Associated Hereditary Breast and Ovarian Cancer Syndrome, Breast Ductal Carcinoma In Situ, Hematopoietic and Lymphoid System Neoplasm, Hereditary Neoplastic Syndrome, Lynch Syndrome, Malignant Solid Neoplasm
Interventions
Biospecimen Collection, Genetic Counseling, Genetic Testing, Survey Administration
Procedure · Other
Lead sponsor
OHSU Knight Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
27,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
2
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jan 22, 2026 · Synced Jun 25, 2026, 1:24 PM EDT
Completed No phase listed Observational

Genetic Susceptibility to Radiation-Induced Skin Reactions in Racial/Ethnic Groups of Patients With Breast Cancer

NCT01407770
View directory record Official record
Conditions
Breast Cancer, Cognitive Ability, General, Fatigue, Pain, Psychosocial Deprivation, Radiation Toxicity, Skin Abnormalities
Interventions
DNA analysis, gene expression analysis, enzyme-linked immunosorbent assay, flow cytometry, laboratory biomarker analysis, questionnaire administration, adjuvant therapy, assessment of therapy complications, quality-of-life assessment, 3-dimensional conformal radiation therapy, breast irradiation, external beam radiation therapy, hypofractionated radiation therapy, intensity-modulated radiation therapy, whole breast irradiation
Genetic · Other · Procedure + 1 more
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older · Female only
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 27, 2023 · Synced Jun 25, 2026, 1:24 PM EDT
Completed Phase 2 Interventional Results available

Hypofractionated Radiation Therapy in Treating Patients With Stage 0-IIB Breast Cancer

NCT03345420
View directory record Official record
Conditions
Ductal Breast Carcinoma In Situ, Invasive Breast Carcinoma, Stage 0 Breast Cancer, Stage I Breast Cancer, Stage IA Breast Cancer, Stage IB Breast Cancer, Stage II Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer
Interventions
Hypofractionated Radiation Therapy
Radiation
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Dec 29, 2025 · Synced Jun 25, 2026, 1:24 PM EDT