CancerDrs

Breast Cancer clinical trials in Washington

39 actively recruiting breast cancer trials at 38 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 Network

S1501 Dual Observational and Randomized Cohort Study of Patients With Metastatic HER-2+ Breast Cancer at Risk of Cardiac Toxicity

This trial has two cohorts of patients with human epidermal growth factor receptor (HER)-2-positive breast cancer that has spread to other places in the body. All patients must be receiving trastuzumab-based treatment. Both cohorts are bei…

Sponsor: SWOG Cancer Research Network
NCT ID: NCT03418961
Sites in Washington:
  • Providence Regional Cancer System-Aberdeen — Aberdeen, Washington
  • MultiCare Auburn Medical Center — Auburn, Washington
  • Virginia Mason Bainbridge Island Medical Center — Bainbridge Island, Washington
  • Overlake Medical Center — Bellevue, Washington
  • PeaceHealth Saint Joseph Medical Center — Bellingham, Washington
Phase 3 Recruiting Academic/Other

E-Mindfulness Approaches for Living After Breast Cancer

NRG-CC015 is a prospective, randomized phase III clinical trial to evaluate the efficacy of two distinct digital approaches for delivering a mindfulness-based intervention: a live, instructor-led version delivered over Zoom (MAPs LO), and …

Sponsor: NRG Oncology
NCT ID: NCT06748222
Sites in Washington:
  • Saint Joseph Medical Center Hematology and Oncology - Silverdale — 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

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 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 Academic/Other

The CDK4/6 Inhibitor Dosing Knowledge (CDK) Study

The purpose of this study is to generate evidence on an alternative dosing strategy for CDK4/6 inhibitors to help more patients with Metastatic Breast Cancer (MBC) (age ≥ 65 years) tolerate side effects and stay on treatment longer, to der…

Sponsor: American Society of Clinical Oncology
NCT ID: NCT06377852
Sites in Washington:
  • Northwest Medical Specialties — Bonney Lake, Washington
  • Northwest Medical Specialties — Federal Way, Washington
  • Northwest Medical Specialties — Gig Harbor, Washington
  • Northwest Medical Specialties — Olympia, Washington
  • Northwest Medical Specialties — Puyallup, Washington
Phase 3 Recruiting Industry

A Study to Evaluate Efficacy and Safety of Giredestrant Compared With Fulvestrant (Plus a CDK4/6 Inhibitor), in Participants With ER-Positive, HER2-Negative Advanced Breast Cancer Resistant to Adjuvant Endocrine Therapy (pionERA Breast Cancer)

This is a Phase III, randomized, open-label multicenter study that will evaluate the efficacy and safety of giredestrant compared with fulvestrant, both in combination with the investigator's choice of a CDK4/6 inhibitor (palbociclib, ribo…

Sponsor: Hoffmann-La Roche
NCT ID: NCT06065748
Sites in Washington:
  • Northwest Medical Specialties — Tacoma, Washington
Phase 3 Recruiting Industry

A Clinical Study of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) in People With Breast Cancer (MK-2870-032)

Researchers are looking for new ways to treat types of breast cancer that are both: * High-risk, which means the cancer may have a higher chance of getting worse or coming back after treatment * Early-stage, which means the cancer is in th…

Sponsor: Merck Sharp & Dohme LLC
NCT ID: NCT06966700
Sites in Washington:
  • Fred Hutchinson Cancer Center ( Site 0069) — Seattle, Washington
  • Cancer Care Northwest ( Site 0003) — Spokane, Washington
  • Northwest Medical Specialties, PLLC ( Site 0067) — Tacoma, 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 3 Recruiting Industry

Saruparib (AZD5305) Plus Camizestrant Compared With CDK4/6 Inhibitor Plus Endocrine Therapy or Plus Camizestrant in HR-Positive, HER2-Negative (IHC 0, 1+, 2+/ ISH Non-amplified), BRCA1, BRCA2, or PALB2m Advanced Breast Cancer

The primary objective of the study is to measure efficacy of saruparib (AZD5305) plus camizestrant compared with physician's choice CDK4/6i plus ET in patients with BRCA1, BRCA2, or PALB2m, HR-positive, HER2-negative (defined as IHC 0, 1+,…

Sponsor: AstraZeneca
NCT ID: NCT06380751
Sites in Washington:
  • Research Site — Tacoma, Washington
Phase 3 Recruiting Industry

A Study Evaluating the Efficacy and Safety of Inavolisib Plus CDK4/6 Inhibitor and Letrozole vs Placebo + CDK4/6i and Letrozole in Participants With Endocrine-Sensitive PIK3CA-Mutated, Hormone Receptor-Positive, HER2-Negative Advanced Breast Cancer

This study will evaluate the efficacy and safety of the combination of inavolisib plus a cyclin-dependent kinase 4 and 6 inhibitor (CDK4/6i) and letrozole versus placebo plus a CDK4/6i and letrozole in the first-line setting in participant…

Sponsor: Hoffmann-La Roche
NCT ID: NCT06790693
Sites in Washington:
  • Swedish Cancer Institute - Edmonds Campus — Edmonds, Washington
  • Providence Regional Cancer Partnership — Everett, Washington
  • Swedish Cancer Institute - Issaquah — Seattle, Washington
  • Swedish Cancer Institute — Seattle, Washington
  • Northwest Medical Specialties — Tacoma, Washington
Phase 3 Recruiting Industry

A Study Comparing the Efficacy and Safety of Zanidatamab to Trastuzumab, Each in Combination With Physician's Choice Chemotherapy, for the Treatment of Participants With Metastatic HER2-positive Breast Cancer

The efficacy and safety of zanidatamab in combination with physician's choice of chemotherapy compared with trastuzumab in combination with physician's choice of chemotherapy will be evaluated for the treatment of participants with metasta…

Sponsor: Jazz Pharmaceuticals
NCT ID: NCT06435429
Sites in Washington:
  • Fred Hutchinson Cancer Center — Seattle, Washington
Phase 3 Recruiting Industry

A Study of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) as Monotherapy and in Combination With Pembrolizumab (MK-3475) in Participants With Triple-Negative Breast Cancer (MK-2870-011/TroFuse-011)

Researchers want to know if sacituzumab tirumotecan given alone or with pembrolizumab can treat triple negative breast cancer (TNBC). The main goal of this study is to learn if people treated with sacituzumab tirumotecan alone or with pemb…

Sponsor: Merck Sharp & Dohme LLC
NCT ID: NCT06841354
Sites in Washington:
  • Fred Hutchinson Cancer Center ( Site 0042) — Seattle, Washington
Phase 3 Recruiting Industry

Phase 3 Study of Gedatolisib as First-Line Treatment for Patients With HR-Positive, HER2-Negative Advanced Breast Cancer (VIKTORIA-2)

This is a Phase 3, open-label, randomized, clinical trial evaluating the efficacy and safety of gedatolisib and palbociclib plus endocrine therapy for the treatment of patients with locally advanced or metastatic HR+/HER2- advanced breast …

Sponsor: Celcuity Inc
NCT ID: NCT06757634
Sites in Washington:
  • Fred Hutchinson Cancer Center — Seattle, 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

Rinatabart Sesutecan (Rina-S, PRO1184, GEN1184) for Advanced Solid Tumors (GCT1184-01/ PRO1184-001)

This study will test the safety, including side effects, and determine the characteristics of a drug called Rina-S in participants with solid tumors. Participants will have solid tumor cancer that has spread through the body (metastatic) o…

Sponsor: Genmab
NCT ID: NCT05579366
Sites in Washington:
  • Swedish Cancer Institute — Seattle, Washington
Phase 1, Phase 2 Recruiting Industry

Beamion BCGC-1: A Study to Find a Suitable Dose of Zongertinib Used Alone and in Combination With Other Treatments to Test Whether it Helps People With Different Types of HER2+ Cancer That Has Spread

This study is open to adults aged 18 years and older with different types of HER2+ cancer that has spread and cannot be removed by surgery. People can take part in this study if their tumours show HER2 aberrations and previous treatment wa…

Sponsor: Boehringer Ingelheim
NCT ID: NCT06324357
Sites in Washington:
  • Fred Hutchinson Cancer Research Center — Seattle, Washington
Phase 2 Recruiting Industry

Study of PF-07248144 in Advanced or Metastatic Solid Tumors

This is an open-label, multi center study to evaluate safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of PF-07248144 and early signs of clinical efficacy of PF-07248144 as a single agent and in combination with other…

Sponsor: Pfizer
NCT ID: NCT04606446
Sites in Washington:
  • Swedish Cancer Institute — Seattle, Washington
  • Swedish Medical Center — Seattle, Washington
Phase 1, Phase 2 Recruiting Industry

A Study of PARG Inhibitor ETX-19477 in Patients With Advanced Solid Malignancies

This is a two-part, open-label, multicenter, dose escalation and dose expansion study designed to evaluate the safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PDx), and anti- tumor activity of ETX-19477, a novel reversible s…

Sponsor: 858 Therapeutics, Inc.
NCT ID: NCT06395519
Sites in 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

SMP-3124LP in Adults With Advanced Solid Tumors

An Open-label, Phase I Dose Escalation and Phase 2 Dose Expansion Study to Assess Safety, Tolerability, Preliminary Antitumor Activity of SMP 3124LP in Adults with Advanced Solid Tumors

Sponsor: Sumitomo Pharma America, Inc.
NCT ID: NCT06526819
Sites in Washington:
  • University of Washington — Seattle, Washington
Phase 2 Recruiting Academic/Other

Avelumab or Hydroxychloroquine With or Without Palbociclib to Eliminate Dormant Breast Cancer

This clinical trial will assess the safety and early efficacy of Hydroxychloroquine or Avelumab, with or without Palbociclib, in early-stage ER+ breast cancer patients who are found to harbor disseminated tumor cells (DTCs) in the bone mar…

Sponsor: Abramson Cancer Center at Penn Medicine
NCT ID: NCT04841148
Sites in Washington:
  • University of Washington — Seattle, Washington

Showing 25 of 39 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: 2026-07-27