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Find Breast Cancer Clinical Trials That Are Right For You

The clinical trials listed below are open in the U.S. for people with DCIS (stage 0), stage 1, stage 2, stage 3, or stage 4 (metastatic)
breast cancer. Clinical trials are available for people who are newly diagnosed with breast cancer, currently in treatment, experiencing
breast cancer recurrence, living with metastatic disease, as well as breast cancer survivors who have completed treatment.

Use the search box and filters to find a trial that’s right for you.


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(Last updated: April 20, 2024)

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Treatment

Brain Mets

BRCA1/2 (inherited)

Chemotherapy

Hormone Therapy

Leptomeningeal Disease

Radiation Oncology

Surgery

Surgery: Reconstruction

Targeted Therapy: All

Targeted Therapy: ADC

Targeted Therapy: Anti-HER2 Therapy

Targeted Therapy: CDK Inhibitors

Targeted Therapy: PARP Inhibitors

Targeted Therapy: Tumor Mutations

Targeted Therapy: Other Targeted Therapy

Vaccines and Immunotherapy

Other Treatment

Non-Treatment

Activities

Complementary and Integrative Medicine

Decision Support

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Genetics/Family History

Having Children

Healthy/High Risk

Imaging

Lymphedema

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No Travel Required

Predicting Response to Treatment

Preventing Breast Cancer

Preventing Recurrence

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AKT

ALK

AR

BARD1

BRCA1/2 (tumor)

BRIP1

CD205

CD70

CHEK2 or CHEK1

dMMR/MSI-H

ESR1

FGFR

HER2/ERBB2

HLA

MET or C-Met

NTRK

PALB2

PIK3CA or PI3K

PTEN

RAD51

RAF (including BRAF)

RAS (KRAS or NRAS)

RB

ROS1

TP53

1

NEAREST SITE: 3 miles
UCSF Medical Center-Mount Zion
San Francisco,CA

VISITS: 1 visit every 6 months for 5 years

PHASE: III

NCT ID: NCT04711109

Denosumab to Prevent Breast Cancer in Women With an Inherited BRCA1 Mutation

BRCA-P: A Randomized, Double-Blind, Placebo-Controlled, Multi-Center, International Phase 3 Study to Determine the Preventive Effect of Denosumab on Breast Cancer in Women Carrying a BRCA1 Germline Mutation Scientific Title

Purpose
To study the safety, effects (good and bad), and ability of denosumab to prevent breast cancer.
Who is this for?
Women aged 25 to 55 who do not have breast cancer and who have an inherited BRCA1 mutation.    Full eligibility criteria
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  • What's involved?
  • What's being studied?
  • How can I learn more?
  • <p class="seamTextPara"> You will be randomly assigned to 1 of 2 groups: </p> <p class="seamTextPara"> <i class="seamTextEmphasis">Group 1</i> </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Denosumab, by injection, every 6 months for up to 5 years</li> </ul> <p class="seamTextPara"> <i class="seamTextEmphasis">Group 2</i> </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Placebo for denosumab, by injection, every 6 months for up to 5 years</li></ul>
  • <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Denosumab is a targeted therapy called a RANK ligand inhibitor. It is used to reduce the risk of bone fractures in people without cancer and to reduce new bone growth in people whose cancer has spread to their bones.</li> <li class="seamTextUnorderedListItem">Denosumab may also reduce the risk of developing breast cancer in women with an inherited (germline) BRCA1 mutation.</li> <li class="seamTextUnorderedListItem">Targets or mutations: BRCA1, BRCA 1</li></ul>
  • <ul class='seamTextUnorderedList'><li class='seamTextUnorderedListItem'>View eligibility criteria and additional trial information: <a href='https://clinicaltrials.gov/ct2/show/NCT04711109' target='_blank'>ClinicalTrials.gov</a> </li><li class='seamTextUnorderedListItem'><a href='https://www.cancerpreventioninitiative.org/projects/prevention-of-breast-cancer-by-denosumab-in-women-carrying-a-brca1-or-brca2-mutation-brca-p-trial/' target='_blank'>Cancer Prevention Initiative: Trial Information Page</a> </li><li class='seamTextUnorderedListItem'><a href='https://medlineplus.gov/druginfo/meds/a610023.html' target='_blank'>MedlinePlus: Denosumab</a> </li></ul>
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2

NEAREST SITE: 3 miles
University of California San Francisco
San Francisco,CA

VISITS: 2 visits

PHASE: II

NCT ID: NCT04821141

Bazedoxifene and Estrogen Hormone Therapy to Reduce Risk Factors for Developing Breast Cancer

Randomized IIB Study of the Effect of Bazedoxifene Plus Conjugated Estrogens on Breast Imaging and Tissue Biomarkers in Peri or Post-Menopausal Women at Increased Risk for Development of Breast Cancer Scientific Title

Purpose
To study whether bazedoxifene and estrogen affect risk factors associated with developing breast cancer.
Who is this for?
Perimenopausal and postmenopausal women ages 45 to 60 who experience hot flashes and/or night sweats at least once a week and have a moderate risk of developing breast cancer. Risk factors include a family history of breast cancer, prior breast biopsies, or one of the following gene mutations: ATM, CDH1, CHEK2, NBN, NF1, PALB2, PTEN, STK11, P53, PTEN. You must not have a BRCA1/2 mutation.    Full eligibility criteria
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  • What's involved?
  • What's being studied?
  • How can I learn more?
  • <p class="seamTextPara"> You will be randomly assigned to 1 of 2 groups: </p> <p class="seamTextPara"> <i class="seamTextEmphasis">Group 1</i> </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Bazedoxifene, by mouth, daily for 6 months</li> <li class="seamTextUnorderedListItem">Estrogen, by mouth, daily for 6 months</li> <li class="seamTextUnorderedListItem">Mammogram, 2 times within 6 months</li> <li class="seamTextUnorderedListItem">Fine needle aspiration biopsy, 2 times within 6 months</li> <li class="seamTextUnorderedListItem">Blood tests, 2 times within 6 months</li> </ul> <p class="seamTextPara"> <i class="seamTextEmphasis">Group 2</i> </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Mammogram, 2 times within 6 months</li> <li class="seamTextUnorderedListItem">Fine needle aspiration biopsy, 2 times within 6 months</li> <li class="seamTextUnorderedListItem">Blood tests, 2 times within 6 months</li> </ul> <p class="seamTextPara"> followed 6 months later by (optional): </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Bazedoxifene, by mouth, daily for 6 months</li> <li class="seamTextUnorderedListItem">Estrogen, by mouth, daily for 6 months</li></ul>
  • <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Bazedoxifene is a type of hormone therapy called a selective estrogen receptor modulator (SERM). SERMs work by blocking the activity of estrogen. It may help reduce the risk of breast cancer.</li> <li class="seamTextUnorderedListItem">Estrogen is a hormone used to treat women experiencing hot flashes.</li></ul>
  • <ul class='seamTextUnorderedList'><li class='seamTextUnorderedListItem'>View eligibility criteria and additional trial information: <a href='https://clinicaltrials.gov/ct2/show/NCT04821141' target='_blank'>ClinicalTrials.gov</a> </li><li class='seamTextUnorderedListItem'><a href='https://www.cancer.gov/about-cancer/treatment/clinical-trials/search/v?id=NCI-2022-03864&r=1#:~:text=Giving%20bazedoxifene%20with%20conjugated%20estrogens,increased%20risk%20for%20breast%20cancer.' target='_blank'>National Cancer Institute: Trial Information Page</a> </li><li class='seamTextUnorderedListItem'><a href='https://medlineplus.gov/druginfo/meds/a614004.html' target='_blank'>Medline Plus: Bazedoxifene and Estrogen</a> </li><li class='seamTextUnorderedListItem'><a href='https://www.cdc.gov/cancer/breast/basic_info/mammograms.htm' target='_blank'>Centers for Disease Control and Prevention: Mammogram</a> </li><li class='seamTextUnorderedListItem'><a href='https://www.cancer.org/cancer/breast-cancer/screening-tests-and-early-detection/breast-biopsy/fine-needle-aspiration-biopsy-of-the-breast.html#:~:text=During%20a%20fine%20needle%20aspiration,needle%20biopsy%20is%20often%20preferred).' target='_blank'>American Cancer Society: Fine Needle Aspiration Biopsy</a> </li></ul>
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3

NEAREST SITE: 602 miles
Huntsman Cancer Institute
Salt Lake City,UT

VISITS: Number of visits unavailable

PHASE: II

NCT ID: NCT02694809

Duavee Hormone Therapy for Postmenopausal Women with DCIS

A Large-scale Multicenter Phase II Study Evaluating the Protective Effect of a Tissue Selective Estrogen Complex (TSEC) in Women With Newly Diagnosed Ductal Carcinoma in Situ Scientific Title

Purpose
To study the safety, effects (good and bad), and ability of a drug called conjugated estrogens/bazedoxifene (Duavee®) to reduce the risk of developing breast cancer.
Who is this for?
Postmenopausal women with newly diagnosed estrogen receptor positive (ER+) DCIS who are planning to receive surgery or have positive margins after surgery.    Full eligibility criteria
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  • What's involved?
  • What's being studied?
  • How can I learn more?
  • <p class="seamTextPara"> You will be randomly assigned to 1 of 2 groups: </p> <p class="seamTextPara"> <i class="seamTextEmphasis">Group 1</i> </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Conjugated estrogens/bazedoxifene (Duavee®), by mouth, daily for 1 month</li> </ul> <p class="seamTextPara"> <i class="seamTextEmphasis">Group 2</i> </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Placebo for conjugated estrogens/bazedoxifene (Duavee®), by mouth, daily for 1 month</li> </ul> <p class="seamTextPara"> <i class="seamTextEmphasis">Additional Procedures</i> </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Questionnaires</li></ul>
  • <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Conjugated estrogens/bazedoxifene (Duavee®) is a FDA approved hormone therapy used to treat symptoms of menopause such as hot flashes in women that do not have breast cancer.</li> <li class="seamTextUnorderedListItem">Because conjugated estrogens/bazedoxifene (Duavee®) is not approved in women with DCIS, its use in this study is experimental. </li> <li class="seamTextUnorderedListItem">Margins are the area around where DCIS was removed during surgery. A positive margin means DCIS cells were found in the margin after surgery.</li></ul>
  • <ul class='seamTextUnorderedList'><li class='seamTextUnorderedListItem'>View eligibility criteria and additional trial information: <a href='https://clinicaltrials.gov/ct2/show/NCT02694809' target='_blank'>ClinicalTrials.gov</a> </li><li class='seamTextUnorderedListItem'><a href='https://www.mayoclinic.org/drugs-supplements/conjugated-estrogens-and-bazedoxifene-oral-route/description/drg-20061326' target='_blank'>Mayo Clinic: Conjugated Estrogens/Bazedoxifene (Duavee®)</a> </li><li class='seamTextUnorderedListItem'><a href='https://www.breastcancer.org/types/ductal-carcinoma-in-situ' target='_blank'>Breastcancer.org: DCIS</a> </li></ul>
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4

NEAREST SITE: 660 miles
Mayo Clinic in Arizona
Scottsdale,AZ

VISITS: 1 visit

PHASE: NA

NCT ID: NCT06036875

Survey to Understand How Black and Hispanic Women Perceive Their Risk for Breast Cancer

CARE: Cancer Risk Perception and Women of Color Scientific Title

Purpose
To study how Black and Hispanic women understand their current and lifetime risk for breast cancer.
Who is this for?
Women, age 25-50 years, who are Black and/or Hispanic and who live in Arizona or Florida with no history of breast cancer.    Full eligibility criteria
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  • What's involved?
  • What's being studied?
  • How can I learn more?
  • <p class="seamTextPara"> You will receive the following: </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Survey, 1 time</li> <li class="seamTextUnorderedListItem">Interview (optional)</li></ul>
  • <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">This study is examining the relationship between risk factors for breast cancer and a person's perceptions of those risk factors and if these relationships are different according to race and ethnicity.</li> <li class="seamTextUnorderedListItem">This study is also exploring how people reduce their risk for breast cancer.</li></ul>
  • <ul class='seamTextUnorderedList'><li class='seamTextUnorderedListItem'>View eligibility criteria and additional trial information: <a href='https://clinicaltrials.gov/ct2/show/NCT06036875' target='_blank'>ClinicalTrials.gov</a> </li></ul>
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5

NEAREST SITE: 660 miles
Mayo Clinic in Arizona
Scottsdale,AZ

VISITS: Number of visits unavailable

PHASE: II

NCT ID: NCT05557877

Low-Dose Aspirin to Prevent Breast Cancer After Having a Baby

Targeted Prevention of Postpartum-Related Breast Cancer Scientific Title

Purpose
To study whether low-dose aspirin prevents breast cancer in women who have recently had a baby and who have benign (non-cancerous) breast disease.
Who is this for?
Pre-menopausal women, ages 18 to 45, who have had a baby in the last 5 years, have received a mammogram that suggested benign (non-cancerous) breast disease, and are planning to receive a biopsy. You must not be taking any medication to prevent breast cancer.    Full eligibility criteria
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  • What's involved?
  • What's being studied?
  • How can I learn more?
  • <p class="seamTextPara"> You will receive the following: </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Biopsy</li> <li class="seamTextUnorderedListItem">Blood tests</li> </ul> <p class="seamTextPara"> followed by: </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Low-dose aspirin, by mouth, daily</li> </ul> <p class="seamTextPara"> followed by: </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Blood tests</li> <li class="seamTextUnorderedListItem">Questionnaires</li> </ul> <p class="seamTextPara"> <i class="seamTextEmphasis">Please contact research site for treatment schedule</i></p>
  • <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Low-dose aspirin, a non-steroidal anti-inflammatory drug, may reduce inflammation in blood and tissue which may prevent breast cancer after having a baby.</li> <li class="seamTextUnorderedListItem">Benign breast disease is non-cancerous breast disease.</li></ul>
  • <ul class='seamTextUnorderedList'><li class='seamTextUnorderedListItem'>View eligibility criteria and additional trial information: <a href='https://clinicaltrials.gov/ct2/show/NCT05557877' target='_blank'>ClinicalTrials.gov</a> </li><li class='seamTextUnorderedListItem'><a href='https://newsnetwork.mayoclinic.org/discussion/mayo-clinic-minute-aspirins-role-in-preventing-and-stopping-the-spread-of-cancer/' target='_blank'>Mayo Clinic: Aspirin and Cancer Prevention</a> </li></ul>
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6

NEAREST SITE: 1615 miles
Mayo Clinic
Rochester,MN

VISITS: Number of visits unavailable

PHASE: II

NCT ID: NCT04570956

Tamoxifen Hormone Therapy for Women With Atypical Hyperplasia or LCIS

A Phase IIB Randomized Trial of Oral Tamoxifen vs. Topical 4-hydroxytamoxifen Gel vs. Control in Women With Atypical Hyperplasia or Lobular Carcinoma In Situ Scientific Title

Purpose
To study changes in breast tissue after treatment with tamoxifen by mouth or gel.
Who is this for?
Women with atypical hyperplasia or lobular carcinoma in situ (LCIS).    Full eligibility criteria
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  • What's involved?
  • What's being studied?
  • How can I learn more?
  • <p class="seamTextPara"> You will be randomly assigned to 1 of 3 groups: </p> <p class="seamTextPara"> <i class="seamTextEmphasis">Group 1</i> </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Tamoxifen (Nolvadex®), by mouth, daily</li> </ul> <p class="seamTextPara"> <i class="seamTextEmphasis">Group 2</i> </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Placebo for tamoxifen (Nolvadex®), by mouth, daily</li> <li class="seamTextUnorderedListItem">4-hydroxytamoxifen (TamGel®), gel rubbed on the breast, daily</li> </ul> <p class="seamTextPara"> <i class="seamTextEmphasis">Group 3</i> </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Placebo for tamoxifen (Nolvadex®), by mouth, daily</li> <li class="seamTextUnorderedListItem">Placebo for 4-hydroxytamoxifen (TamGel®), gel rubbed on the breast, daily</li> </ul> <p class="seamTextPara"> <i class="seamTextEmphasis">Additional Procedures</i> </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">2 biopsies</li></ul>
  • <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Tamoxifen (Nolvadex®) is a type of hormone therapy called a selective estrogen receptor modulator (SERM). SERMs work by blocking the activity of estrogen.</li> <li class="seamTextUnorderedListItem">4-hydroxytamoxifen (TamGel®) is a gel version of tamoxifen.</li></ul>
  • <ul class='seamTextUnorderedList'><li class='seamTextUnorderedListItem'>View eligibility criteria and additional trial information: <a href='https://clinicaltrials.gov/ct2/show/NCT04570956' target='_blank'>ClinicalTrials.gov</a> </li><li class='seamTextUnorderedListItem'><a href='https://www.mayoclinic.org/diseases-conditions/breast-cancer/in-depth/breast-cancer/art-20045353#:~:text=Tamoxifen%20is%20used%20to%20reduce,score%20is%20greater%20than%201.7%25.' target='_blank'>Mayo Clinic: Tamoxifen for Breast Cancer Prevention</a> </li><li class='seamTextUnorderedListItem'><a href='https://www.breastcancer.org/treatment/hormonal-therapy/tamoxifen' target='_blank'>Breastcancer.org: Tamoxifen (Nolvadex®)</a> </li></ul>
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7

NEAREST SITE: 2054 miles
University of Michigan Rogel Cancer Center
Ann Arbor,MI

VISITS: Number of visits unavailable

PHASE: NA

NCT ID: NCT05700006

Effects of Hormone Therapy vs. No Hormone Therapy for Breast Cancer and Breast Cancer Prevention on Aging and the Microbiome

An Observational Study of Women With Breast Cancer Examining the Effect of Endocrine Therapy on Aging Scientific Title

Purpose
To study the effects of hormone therapy on biomarkers of aging and the microbiome.
Who is this for?
Women with stage 0 (DCIS), stage I, stage II, or stage III breast cancer or women at high risk of developing breast cancer. You must not have received treatment with an aromatase inhibitor for breast cancer or breast cancer prevention.    Full eligibility criteria
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  • What's involved?
  • What's being studied?
  • How can I learn more?
  • <p class="seamTextPara"> You will be assigned to 1 of 3 groups depending on your situation: </p> <p class="seamTextPara"> <i class="seamTextEmphasis">Group 1: Over 65 and Planning to Receive Hormone Therapy</i> </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Physician's choice of anastrozole (Arimidex®), exemestane (Aromasin®), or letrozole (Femara®)</li> <li class="seamTextUnorderedListItem">3 stool samples, questionnaires, blood draws</li> </ul> <p class="seamTextPara"> <i class="seamTextEmphasis">Group 2: Over 65 and Not Planning to Receive Hormone Therapy (Control Group)</i> </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">3 stool samples, questionnaires, blood draws</li> </ul> <p class="seamTextPara"> <i class="seamTextEmphasis">Group 3: Under 65 and Planning to Receive Hormone Therapy</i> </p> <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">Physician's choice of anastrozole (Arimidex®), exemestane (Aromasin®), or letrozole (Femara®)</li> <li class="seamTextUnorderedListItem">3 stool samples, questionnaires, blood draws</li></ul>
  • <ul class="seamTextUnorderedList"> <li class="seamTextUnorderedListItem">The microbiome is the collection of microorganisms (bacteria) living in your digestive tract.</li> <li class="seamTextUnorderedListItem">Anastrozole (Arimidex®), exemestane (Aromasin®), and letrozole (Femara®) are types of hormone therapy called aromatase inhibitors. Aromatase inhibitors block some production of estrogen that helps cancer grow.</li></ul>
  • <ul class='seamTextUnorderedList'><li class='seamTextUnorderedListItem'>View eligibility criteria and additional trial information: <a href='https://clinicaltrials.gov/ct2/show/NCT05700006' target='_blank'>ClinicalTrials.gov</a> </li><li class='seamTextUnorderedListItem'><a href='https://www.breastcancer.org/treatment/hormonal-therapy/arimidex' target='_blank'>Breastcancer.org: Anastrozole (Arimidex®)</a> </li><li class='seamTextUnorderedListItem'><a href='https://www.breastcancer.org/treatment/hormonal-therapy/aromasin' target='_blank'>Breastcancer.org: Exemestane (Aromasin®)</a> </li><li class='seamTextUnorderedListItem'><a href='https://www.breastcancer.org/treatment/hormonal-therapy/femara' target='_blank'>Breastcancer.org: Letrozole (Femara®)</a> </li><li class='seamTextUnorderedListItem'><a href='https://www.insideprecisionmedicine.com/topics/oncology/breast-cancer/probiotic-bacteria-may-improve-efficacy-of-endocrine-targeted-therapies-for-breast-cancer/' target='_blank'>Inside Precision Medicine: Breast Cancer Treatments and the Microbiome</a> </li></ul>
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