CancerDrs

Breast Cancer clinical trials in Washington

36 actively recruiting breast cancer trials at 31 sites across Washington.

Data from ClinicalTrials.gov · last refreshed

Phase 3 Recruiting Academic/Other

Evaluating the Addition of Adjuvant Chemotherapy to Ovarian Function Suppression Plus Endocrine Therapy in Premenopausal Patients With pN0-1, ER-Positive/HER2-Negative Breast Cancer and an Oncotype Recurrence Score Less Than or Equal to 25

This Phase III Trial will determine whether adjuvant chemotherapy (ACT) added to ovarian function suppression (OFS) plus endocrine therapy (ET) is superior to OFS plus ET in improving invasive breast cancer-free survival (IBCFS) among prem…

Sponsor: NRG Oncology
NCT ID: NCT05879926
Sites in Washington:
  • Providence Regional Cancer System-Aberdeen — Aberdeen, Washington
  • FHCC Overlake — Bellevue, Washington
  • PeaceHealth Saint Joseph Medical Center — Bellingham, Washington
  • Providence Regional Cancer System-Centralia — Centralia, Washington
  • Swedish Cancer Institute-Edmonds — Edmonds, Washington
Phase 3 Recruiting Academic/Other

ShortStop-HER2: 12 Months vs. 6 Months of HER2-targeted Medications for People With HER2+ Breast Cancer Who Had a Pathologic Complete Response After Chemotherapy Plus Trastuzumab

This phase III trial compares 6 months of human epidermal growth factor receptor 2 (HER2)-targeted therapy to 12 months of HER2-targeted therapy for the treatment of HER2-positive (+) breast cancer in patients that had a pathologic complet…

Sponsor: Alliance for Clinical Trials in Oncology
NCT ID: NCT06876714
Sites in Washington:
  • Swedish Cancer Institute-Edmonds — Edmonds, Washington
  • Swedish Cancer Institute-Issaquah — Issaquah, Washington
  • Skagit Regional Health Cancer Care Center — Mount Vernon, Washington
  • Swedish Medical Center-First Hill — Seattle, Washington
  • Saint Michael Cancer Center — Silverdale, Washington
Phase 3 Recruiting Academic/Other

Testing Longer Duration Radiation Therapy Versus the Usual Radiation Therapy in Patients With Cancer That Has Spread to the Brain

This phase III trial compares the effectiveness of fractionated stereotactic radiosurgery (FSRS) to usual care stereotactic radiosurgery (SRS) in treating patients with cancer that has spread from where it first started to the brain. Radia…

Sponsor: NRG Oncology
NCT ID: NCT06500455
Sites in Washington:
  • Valley Medical Center — Renton, Washington
  • Legacy Cancer Institute Medical Oncology and Day Treatment — Vancouver, Washington
  • Legacy Salmon Creek Hospital — Vancouver, Washington
Phase 3 Recruiting Industry

Study of Sacituzumab Govitecan-hziy and Pembrolizumab Versus Treatment of Physician's Choice in Patients With Triple Negative Breast Cancer Who Have Residual Invasive Disease After Surgery and Neoadjuvant Therapy (ASCENT-05/AFT-65 OptimICE-RD/GBG 119/NSABP B-63)

The goal of this study is to find out if the experimental product, sacituzumab govitecan-hziy (SG) in combination with pembrolizumab given after surgery, is effective and safe compared to the treatment of physician's choice (TPC) which inc…

Sponsor: Gilead Sciences
NCT ID: NCT05633654
Sites in Washington:
  • Providence Regional Cancer System — Lacey, Washington
  • MultiCare Regional Cancer Center - Tacoma — Puyallup, Washington
  • Northwest Medical Specialties, PLLC — Puyallup, Washington
  • University of Washington — Renton, Washington
  • Medical Oncology Associates — Spokane, Washington
Phase 3 Recruiting Industry

An Adjuvant Endocrine-based Therapy Study of Camizestrant (AZD9833) in ER+/HER2- Early Breast Cancer (CAMBRIA-2)

This is a Phase III open-label study to assess if camizestrant improves outcomes compared to standard adjuvant endocrine therapy for patients with ER+/HER2- early breast cancer with intermediate-high or high risk for disease recurrence who…

Sponsor: AstraZeneca
NCT ID: NCT05952557
Sites in Washington:
  • Research Site — Puyallup, Washington
  • Research Site — Spokane, Washington
  • Research Site — Vancouver, Washington
Phase 3 Recruiting Industry

A Study of Tersolisib (LY4064809/STX-478) With Other Anti-Cancer Treatments in Participants With Advanced Breast Cancer With a Genetic Change (PIK3CA)

The purpose of the study is to assess the efficacy and safety of the addition of Tersolisib (LY4064809/STX-478) to other anti-cancer drugs as first treatment for advanced hormone receptor-positive (HR+)/human epidermal growth factor recept…

Sponsor: Eli Lilly and Company
NCT ID: NCT07174336
Sites in Washington:
  • Swedish Cancer Institute - Edmonds — Edmonds, Washington
  • Providence Regional Cancer Partnership — Everett, Washington
  • UW Medicine Valley Medical Center — Renton, Washington
  • Swedish Medical Center — Seattle, Washington
  • Deaconess Hospital — Spokane, Washington
Phase 3 Recruiting Industry

A Study to Learn About the Study Medicine Called PF-07248144 in Combination With Fulvestrant in People With HR-positive, HER2-negative Advanced or Metastatic Breast Cancer Who Progressed After a Prior Line of Treatment.

The purpose of this study is to learn about the safety and effects of the study medicine PF-07248144 when given along with fulvestrant for the possible treatment of HR-positive, HER2-negative advanced or metastatic breast cancer. HR-positi…

Sponsor: Pfizer
NCT ID: NCT07062965
Sites in Washington:
  • Fred Hutchinson Cancer Center — Seattle, Washington
Phase 3 Recruiting Industry

Phase IIIb Study of Ribociclib + ET in Early Breast Cancer

The purpose of this open-label, multicenter, phase IIIb, single-arm study is to characterize the efficacy and safety of the combination of ribociclib and standard adjuvant endocrine therapy (ET) on invasive breast cancer-free survival (iBC…

Sponsor: Novartis Pharmaceuticals
NCT ID: NCT05827081
Sites in Washington:
  • Kadlec Clinic Hematology and Onco — Kennewick, Washington
  • Providence Regional Cancer System — Lacey, Washington
  • Valley Medical Center Research — Renton, Washington
  • Northwest Medical Specialties — Tacoma, Washington
Phase 3 Recruiting Industry

Capivasertib + CDK4/6i + Fulvestrant for Advanced/Metastatic HR+/HER2- Breast Cancer (CAPItello-292)

A Phase Ib/III Open-label, Randomised Study of Capivasertib plus CDK4/6 Inhibitors and Fulvestrant versus CDK4/6 Inhibitors and Fulvestrant in Hormone Receptor-Positive and Human Epidermal Growth Factor Receptor 2-Negative Locally Advanced…

Sponsor: AstraZeneca
NCT ID: NCT04862663
Sites in Washington:
  • Research Site — Tacoma, Washington
Phase 3 Recruiting Industry

OP-1250 (Palazestrant) vs. Standard of Care for the Treatment of ER+/HER2- Advanced Breast Cancer

This phase 3 clinical trial compares the safety and efficacy of palazestrant (OP-1250) to the standard-of-care options of fulvestrant or an aromatase inhibitor in women and men with breast cancer whose disease has advanced on one endocrine…

Sponsor: Olema Pharmaceuticals, Inc.
NCT ID: NCT06016738
Sites in Washington:
  • Clinical Trial Site — Spokane, Washington
  • Clinical Trial Site — Spokane, Washington
Phase 3 Recruiting Industry

A Study of Metastases Free Survival With Saruparib vs Placebo Added to a Standard RT/ADT in Men With High-risk Prostate Cancer With a BRCA Mutation

The purpose of the study is to demonstrate superiority of Saruparib (AZD5305) relative to placebo added to a standard radiation therapy (RT) + androgen deprivation therapy (ADT) regimen by assessment of metastases-free survival in particip…

Sponsor: AstraZeneca
NCT ID: NCT06952803
Sites in Washington:
  • Research Site — Seattle, Washington
Phase 3 Recruiting Industry

Palazestrant in Combination With Ribociclib for the First-line Treatment of ER+/HER2- Advanced Breast Cancer

This phase 3 clinical trial compares the efficacy and safety of palazestrant with ribociclib to letrozole and ribociclib in women and men who have not received prior systemic anti-cancer treatment for advanced breast cancer.

Sponsor: Olema Pharmaceuticals, Inc.
NCT ID: NCT07085767
Sites in Washington:
  • Clinical Trial Site — Olympia, Washington
  • Clinical Trial Site — Vancouver, Washington
Phase 3 Recruiting Industry

ROSETTA Breast-01: The Effects and Safety of Pumitamig in Patients With Triple-Negative Breast Cancer

This is a Phase III trial where participants will be randomized to two treatment groups, which means participants will be assigned by equal chance to a treatment group. This trial will be double-blinded, which means neither the participant…

Sponsor: BioNTech SE
NCT ID: NCT07173751
Sites in Washington:
  • Northwest Medical Specialties, PLLC — Tacoma, Washington
Phase 2 Recruiting NIH

Targeted Therapy Directed by Genetic Testing in Treating Patients With Locally Advanced or Advanced Solid Tumors, The ComboMATCH Screening Trial

This ComboMATCH patient screening trial is the gateway to a coordinated set of clinical trials to study cancer treatment directed by genetic testing. Patients with solid tumors that have spread to nearby tissue or lymph nodes (locally adva…

Sponsor: National Cancer Institute (NCI)
NCT ID: NCT05564377
Sites in Washington:
  • Swedish Cancer Institute-Edmonds — Edmonds, Washington
  • Swedish Cancer Institute-Issaquah — Issaquah, Washington
  • Providence Regional Cancer System-Lacey — Lacey, Washington
  • Valley Medical Center — Renton, Washington
  • Swedish Medical Center-First Hill — Seattle, Washington
Phase 1, Phase 2 Recruiting Industry

Open-Label Umbrella Study To Evaluate Safety And Efficacy Of Elacestrant In Various Combination In Participants With Metastatic Breast Cancer

This is a multicenter, Phase 1b/2 trial in participants with estrogen receptor positive/human epidermal growth factor receptor 2 negative (ER+/HER2-) advanced/metastatic breast cancer. The phase 1b part of the trial will determine the reco…

Sponsor: Stemline Therapeutics, Inc.
NCT ID: NCT05563220
Sites in Washington:
  • Cancer Care Northwest — Spokane Valley, Washington
  • Northwest Medical Specialties (Nwms) - Puyallup - Medical Oncology (Rainier Hematology-Oncology)/Exigent Research Network; LLC — Tacoma, Washington
Phase 1, Phase 2 Recruiting Industry

The Evaluation of PC14586 in Patients With Advanced Solid Tumors Harboring a TP53 Y220C Mutation (PYNNACLE)

The Phase 2 monotherapy portion of this study is currently enrolling and will evaluate the efficacy and safety of PC14586 (INN rezatapopt) in participants with locally advanced or metastatic solid tumors harboring a TP53 Y220C mutation. Th…

Sponsor: PMV Pharmaceuticals, Inc
NCT ID: NCT04585750
Sites in Washington:
  • University of Washington, Fred Hutchinson Cancer Center — Seattle, Washington
Phase 1, Phase 2 Recruiting Industry

A Study to Evaluate the Safety, Tolerability, Drug Levels, and Preliminary Efficacy of BMS-986507 Combinations in Adult Participants With Advanced Solid Tumors

The purpose of this study is to evaluate the safety, tolerability, drug levels, and preliminary efficacy of BMS-986507 combinations in adult participants with advanced solid tumors.

Sponsor: Bristol-Myers Squibb
NCT ID: NCT06618287
Sites in Washington:
  • Swedish Medical Center — Seattle, Washington
Phase 1, Phase 2 Recruiting Industry

Study of ECI830 Single Agent or in Combination in Patients With Advanced HR+/HER2- Breast Cancer and Other Advanced Solid Tumors

Phase I: Characterize safety and tolerability of ECI830 as a single agent and in combination with ribociclib and fulvestrant. Identify dose range for optimization/recommended dose for future studies. Phase II: Assess the anti-tumor activit…

Sponsor: Novartis Pharmaceuticals
NCT ID: NCT06726148
Sites in Washington:
  • Fred Hutch Cancer Research — Seattle, Washington
Phase 2 Recruiting Academic/Other

Hippocampal Avoidance in Craniospinal Irradiation for the Treatment of Leptomeningeal Metastases From Breast Cancer or Non-small Cell Lung Cancer

This phase II clinical trial studies how well craniospinal irradiation (CSI) with hippocampal avoidance, using proton therapy or volumetric modulated arc therapy (VMAT), works in treating patients with breast cancer or non-small cell lung …

Sponsor: University of Washington
NCT ID: NCT06518057
Sites in Washington:
  • Fred Hutch/University of Washington Cancer Consortium — Seattle, Washington
Phase 2 Recruiting Academic/Other

Concurrent WOKVAC Vaccination, Chemotherapy, and HER2-Targeted Monoclonal Antibody Therapy Before Surgery for the Treatment of Patients With Breast Cancer

This phase II trial studies the immunologic response and side effects of using the WOKVAC vaccine in combination with chemotherapy and HER2-targeted monoclonal antibody therapy before surgery in treating patients with breast cancer. Vaccin…

Sponsor: University of Washington
NCT ID: NCT04329065
Sites in Washington:
  • Fred Hutch/University of Washington Cancer Consortium — Seattle, Washington
Phase 1, Phase 2 Recruiting Academic/Other

[18F]FTT Positron Emission Tomography for the Measurement of PARP Tumor Expression in Patients With Metastatic Breast Cancer

This clinical trial studies how well fluorine F 18 fluorthanatrace (\[18F\]FTT) positron emission tomography (PET) works in imaging patients with breast cancer that has spread from where it first started (primary site) to other places in t…

Sponsor: University of Washington
NCT ID: NCT06502691
Sites in Washington:
  • Fred Hutch/University of Washington Cancer Consortium — Seattle, Washington
Phase 2 Recruiting Academic/Other

A Vaccine (STEMVAC) With Standard Endocrine-Based Therapy or Chemotherapy for the Treatment of Metastatic Hormone Receptor Positive, HER2 Negative Breast Cancer

This phase II trial studies how well a vaccine, STEMVAC, works in combination with standard endocrine-based therapy (ET) with a CDK4/6 targeted drug therapy, or with the chemotherapy drug capecitabine, in treating patients with hormone rec…

Sponsor: University of Washington
NCT ID: NCT07112053
Sites in Washington:
  • Fred Hutch/University of Washington Cancer Consortium — Seattle, Washington

Showing 25 of 36 trials with sites in Washington. See all breast cancer trials →

Medical disclaimer: This page aggregates public ClinicalTrials.gov data. It is not medical advice. Always confirm eligibility and enrollment details with the trial site or your oncologist.

Source: ClinicalTrials.gov API v2 · Last checked: 2026-05-25