About Pricing FAQs Providers Trials Blog

Login Get started

Finding studies

Your health journey, clearly organized.

Questions? feedback@clareohealth.com

Product

How it works
Pricing
For Providers
Trials

Company

About
Blog
FAQ

Legal

Privacy Policy
Terms of Service

© 2026 Clareo Health. All rights reserved.

Clareo Health | Breast Cancer Clinical Trials in Seattle | 547 Studies

Clinical Trials Breast CancerSeattle

Breast Cancer Clinical Trials in Seattle

Find 547 clinical trials for breast cancer near Seattle, Washington. Connect with research centers in your area.

All Breast Cancer trials nationwide All trials in Seattle

Order

Status

RecruitingNot yet recruitingActive, not recruitingEnrolling by invitationCompletedTerminated

Phase

Early phase 1Phase 1Phase 1–2Phase 2Phase 2–3Phase 3Phase 4No phase

Who can join

Healthy volunteers too

Showing 321-340 of 547 trials

CompletedS1008: Exercise, Diet, & Counseling in Improving Weight Loss in Overweight Female Breast or Colorectal Cancer SurvivorsRATIONALE: Physical activity, diet, and counseling may help breast and colorectal cancer survivors to lose weight and improve their quality of life.NCT01453452·Tucson, Arizona and 57 others

Breast Cancer Trials in Other Cities

New York Los Angeles Chicago Houston Phoenix Philadelphia

Data from ClinicalTrials.govTerms

CompletedColombian Screening Mammography ProjectA cluster randomized controlled trial was performed in Bogotá, Colombia between 2007-2008 to evaluate the effects of an opportunistic (hospital-based) screening program…NCT02337582·Seattle, Washington

CompletedHealth SMART (Stress Management and Relaxation Training) to Improve Vaccine Immune ResponseThe proposed investigation will conduct a randomized, clinical trial to test the efficacy of a cognitive behavioral stress management (CBSM) group intervention on immune response…NCT00121160·Seattle, Washington

CompletedAZD8186 First Time In Patient Ascending Dose StudyThis is a phase I, open-label, multicentre study of AZD8186 administered orally in patients with advanced castrate-resistant prostate cancer (CRPC), squamous non-small cell lung…NCT01884285·Boston, Massachusetts and 12 others

Approved for marketingAn Expanded Access Study to Provide at Home Subcutaneous Administration of Pertuzumab and Trastuzumab Fixed-Dose Combination (PH FDC SC) for Patients With HER2-Positive Breast Cancer During the COVID-19 PandemicThis single arm, multicenter study provides the pertuzumab and trastuzumab fixed-dose combination formulation for subcutaneous injection (PH FDC SC) administered at home by a home…NCT04395508·Beverly Hills, California and 11 others

CompletedS0012 Doxorubicin, Cyclophosphamide, and Paclitaxel With or Without Filgrastim in Treating Women With Inflammatory or Locally Advanced Breast CancerRATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die.NCT00016406·Mobile, Alabama and 313 others

CompletedLymph Node Removal in Treating Women Who Have Stage I or Stage IIA Breast CancerRATIONALE: Surgery to remove lymph nodes in the armpit may remove cancer cells that have spread from tumors in the breast.NCT00003855·Birmingham, Alabama and 155 others

CompletedFulvestrant With or Without Lapatinib in Treating Postmenopausal Women With Stage III or Stage IV Breast Cancer That is Hormone Receptor-PositiveThis randomized phase III trial studies fulvestrant and lapatinib to see how well they work compared to fulvestrant and a placebo in treating postmenopausal women with stage III…NCT00390455·Little Rock, Arkansas and 367 others

Active not recruitingFES PET/CT in Predicting Response in Patients With Newly Diagnosed Metastatic Breast Cancer Receiving Endocrine TherapyThis phase II trial studies F-18 16 alpha-fluoroestradiol (FES) positron emission tomography (PET)/computed tomography (CT) in predicting response to endocrine therapy in patients…NCT02398773·Birmingham, Alabama and 24 others

UnknownLetrozole in Treating Postmenopausal Women Who Have Received Hormone Therapy for Hormone Receptor-Positive Breast CancerRATIONALE: Estrogen can cause the growth of breast cancer cells. Hormone therapy using letrozole may fight breast cancer by lowering the amount of estrogen the body makes.NCT00382070·Anniston, Alabama and 805 others

CompletedS0927:Omega3-Fatty Acid Supp in Treating Muscle&Bone Pain&Stiffness in Pts W/Stg I,II,III Brst Canc Rec'v Hormone ThpyRATIONALE: An omega-3 fatty acid-enriched nutritional supplement may help improve muscle and bone pain and stiffness caused by hormone therapy in patients with breast cancer.NCT01385137·Mobile, Alabama and 291 others

CompletedItraconazole Compared With Fluconazole to Prevent Infections in Patients Undergoing Peripheral Stem Cell or Bone Marrow TransplantationRATIONALE: Giving itraconazole or fluconazole may be effective in preventing infections in patients undergoing peripheral stem cell or bone marrow transplantation.NCT00003883·Seattle, Washington and 1 other

Active not recruitingAssessment of Cognitive Function in Breast Cancer and Lymphoma Patients Receiving ChemotherapyCognitive impairments in cancer patients represent an important clinical problem.NCT01382082·Newark, Delaware and 28 others

CompletedIntegrative Oncology Outcomes Study in Breast CancerThis NIH-NCCAM funded epidemiologic research is being conducted as an observational prospective case-control study of the use of Complementary and Alternative Medicine (CAM) and…NCT01366248·Bellevue, Washington and 5 others

CompletedVaccine Therapy With or Without Polysaccharide-K in Patients With Stage IV HER2 Positive Breast Cancer Receiving HER2-Targeted Monoclonal Antibody TherapyThis randomized phase I/II trial studies the side effects of vaccine therapy with or without polysaccharide-K and to see how well it works in treating patients with stage IV human…NCT01922921·Seattle, Washington

CompletedGabapentin For the Control of Hot Flashes in Women With Breast CancerRATIONALE: Gabapentin may be effective for the control of hot flashes. It is not yet known if gabapentin is effective in treating hot flashes.NCT00022074·Mobile, Alabama and 17 others

CompletedRibavirin With or Without Monoclonal Antibody Therapy in Treating Patients Who Develop RSV Pneumonia Following Peripheral Stem Cell TransplantationRATIONALE: Antivirals such as ribavirin are used to treat infections caused by viruses.NCT00014391·Seattle, Washington

CompletedTaxotere Plus Weekly Navelbine and G-CSF: A Study in Stage IV Breast CancerThe two drugs used to treat metastatic breast cancer in this study may perform better when used together than when used separately.NCT00194740·Seattle, Washington

Active not recruitingPertuzumab and Trastuzumab as Neoadjuvant Treatment in Patients With HER2-Positive Breast CancerThis research is being done to determine if early changes on a type of imaging procedure called PET (Positron Emission Tomography) can predict which patients are most likely to…NCT01937117·Birmingham, Alabama and 9 others

Active not recruitingSurgery in Preventing Ovarian Cancer in Patients With Genetic MutationsThis phase II trial studies how well surgery works in preventing ovarian cancer in patients with genetic mutations at risk of ovarian cancer.NCT02760849·Chicago, Illinois and 8 others

PreviousPage 17 of 28Next

Other Conditions in Seattle

Lung Cancer Prostate Cancer Colorectal Cancer Melanoma Leukemia Lymphoma