The state of Washington currently has 93 active clinical trials seeking participants for Breast Cancer research studies. These trials are conducted in various cities, including Seattle, Spokane, Tacoma and Vancouver.
Open-Label Study to Evaluate the Safety, Tolerability, PK, and Efficacy of INX-315 in Patients With Advanced Cancer
Recruiting
Incyclix Bio (Incyclix) is developing INX-315 as an oral, small molecule inhibitor of cyclin dependent kinase 2 (CDK2) for the treatment of human cancers. This first-in-human study is designed to evaluate the safety, tolerability, pharmacokinetics (PK) and preliminary antitumor activity of INX-315 in patients with recurrent advanced/metastatic cancer, including hormone receptor positive (HR+)/Human Epidermal Growth Factor Receptor 2 Negative (HER2-) breast cancer who progressed on a prior cyclin... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/01/2025
Locations: Northwest Medical Specialties, PLLC, Tacoma, Washington
Conditions: Breast Cancer, Breast Cancer Metastatic, Hormone Receptor Positive Tumor, Human Epidermal Growth Factor 2 Negative Carcinoma of Breast, Ovarian Cancer, CCNE1 Amplification, Solid Tumor, Advanced Cancer, Metastatic Cancer
Testing Radiation and HER2-targeted Therapy Versus HER2-targeted Therapy Alone for Low-risk HER2-positive Breast Cancer
Recruiting
This Phase III trial compares the recurrence-free interval (RFI) among patients with early-stage, low risk HER2+ breast cancer who undergo breast conserving surgery and receive HER2-directed therapy, and are randomized to not receive adjuvant breast radiotherapy versus those who are randomized to receive adjuvant radiotherapy per the standard of care.
Gender:
ALL
Ages:
40 years and above
Trial Updated:
08/01/2025
Locations: Swedish Cancer Institute-Edmonds, Edmonds, Washington +7 locations
Conditions: HER2-positive Breast Cancer
A Study to Evaluate the Efficacy and Safety of Inavolisib in Combination With Phesgo Versus Placebo in Combination With Phesgo in Participants With PIK3CA-Mutated HER2-Positive Locally Advanced or Metastatic Breast Cancer
Recruiting
This study will evaluate the efficacy and safety of inavolisib in combination with Phesgo (pertuzumab, trastuzumab, and rHuPH20 injection for subcutaneous use) compared with placebo in combination with Phesgo, as maintenance therapy, after induction therapy in participants with previously untreated HER2-positive advanced breast cancer (ABC).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/01/2025
Locations: Kadlec Clinic Hematology and Oncology, Kennewick, Washington +1 locations
Conditions: Metastatic Breast Cancer
De-Escalation of Breast Radiation Trial for Hormone Sensitive, HER-2 Negative, Oncotype Recurrence Score Less Than or Equal to 18 Breast Cancer (DEBRA)
Recruiting
This Phase III Trial evaluates whether breast conservation surgery and endocrine therapy results in a non-inferior rate of invasive or non-invasive ipsilateral breast tumor recurrence (IBTR) compared to breast conservation with breast radiation and endocrine therapy.
Gender:
ALL
Ages:
Between 50 years and 70 years
Trial Updated:
08/01/2025
Locations: PeaceHealth Saint Joseph Medical Center, Bellingham, Washington +8 locations
Conditions: Stage I Breast Cancer
Open-Label Umbrella Study To Evaluate Safety And Efficacy Of Elacestrant In Various Combination In Participants With Metastatic Breast Cancer
Recruiting
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 recommended Phase 2 dose (RP2D) of elacestrant when administered in combination with alpelisib, everolimus, palbociclib, capivasertib, and ribociclib. The Phase 2 part of the trial will evaluate the efficacy and safety of the various combinations.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/01/2025
Locations: Cancer Care Northwest, Spokane Valley, Washington +1 locations
Conditions: Breast Cancer, Metastatic Breast Cancer
A Study of PARG Inhibitor ETX-19477 in Patients With Advanced Solid Malignancies
Recruiting
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 small molecule inhibitor of PARG.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/31/2025
Locations: Fred Hutchinson Cancer Center, Seattle, Washington
Conditions: Advanced or Metastatic Solid Tumors, Breast Cancer, Ovarian Cancer, Prostate Cancer, Epithelial Ovarian Cancer, BRCA2 Mutation, ER+ Breast Cancer, Castrate Resistant Prostate Cancer, BRCA1 Mutation, BRCA Mutation, Endometrial Cancer, Colorectal Cancer, Gastric Cancer
Safety and Preliminary Effectiveness of BNT327, an Investigational Therapy for Breast Cancer, When Given in Combination With Chemotherapy
Recruiting
This study is a Phase II, multi-site, randomized, open-label clinical study to evaluate the safety, efficacy, and pharmacokinetics (PK) of BNT327 at two dose levels in combination with chemotherapeutic agents in the first- and second-line treatment of participants with locally advanced/metastatic triple-negative breast cancer (mTNBC).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/31/2025
Locations: Northwest Cancer Specialists, Vancouver, Washington
Conditions: Locally Advanced Breast Cancer, Triple Negative Breast Cancer, Metastatic Triple Negative Breast Cancers
A Study to Evaluate the Safety and Efficacy of A2B395, an Allogeneic Logic-gated CAR T, in Participants With Solid Tumors That Express EGFR and Have Lost HLA-A*02 Expression
Recruiting
The goal of this study is to test A2B395, an allogeneic logic-gated Tmod™ CAR T-cell product in subjects with solid tumors including colorectal cancer (CRC), non-small cell lung cancer (NSCLC), head and neck squamous cell carcinoma (HNSCC), triple-negative breast cancer (TNBC), renal cell carcinoma (RCC) and other solid tumors that express EGFR and have lost HLA-A\*02 expression. The main questions this study aims to answer are: * Phase 1: What is the recommended dose of A2B395 that is safe fo... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/31/2025
Locations: Fred Hutch Cancer Center, Seattle, Washington
Conditions: Solid Tumor, Adult, Colorectal Cancer, Non-Small Cell Lung, NSCLC (non-small Cell Lung Cancer), Cancer, Colon Cancer, Rectal Cancer, Lung Cancer, CRC, Head and Neck Squamous Cell Cancer, HNSCC, Renal Cell Carcinoma, RCC, Kidney Cancer, Triple Negative Breast Cancer, TNBC, Colorectal Adenocarcinoma
Study of the Bria-IMT Regimen and CPI vs Physicians' Choice in Advanced Metastatic Breast Cancer.
Recruiting
This is a multicenter randomized, open label study to evaluate overall survival with the Bria-IMT regimen in combination with Checkpoint Inhibitor \[Retifanlimab\], versus Treatment of Patients'/Physicians' Choice (TPC) in advanced metastatic or locally recurrent breast cancer (aMBC) patients with no approved alternative therapies available.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/30/2025
Locations: Cancer Care Northwest, Spokane Valley, Washington +2 locations
Conditions: Breast Cancer, Metastatic Breast Cancer, Breast Neoplasm, Breast Cancer Metastatic, End Stage Cancer
DNA-guided Second Line Adjuvant Therapy for High Residual Risk, Estrogen Receptor Positive, HER-2 Negative Breast Cancer (DARE)
Recruiting
A randomized, Phase II trial of circulating tumor DNA-guided second line Adjuvant therapy for high Residual risk, Estrogen Receptor positive, HER-2 negative breast cancer (DARE)
Gender:
ALL
Ages:
All
Trial Updated:
07/29/2025
Locations: Swedish Cancer Institute, Seattle, Washington
Conditions: Breast Cancer
Concurrent WOKVAC Vaccination, Chemotherapy, and HER2-Targeted Monoclonal Antibody Therapy Before Surgery for the Treatment of Patients With Breast Cancer
Recruiting
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. Vaccines like WOKVAC are made from tumor-associated antigens which may help the body build an effective immune response to kill tumor cells. Chemotherapy drugs, such as paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells,... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/25/2025
Locations: Fred Hutch/University of Washington Cancer Consortium, Seattle, Washington
Conditions: Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8
A Phase III Randomised Study to Evaluate Dato-DXd and Durvalumab for Neoadjuvant/Adjuvant Treatment of Triple-Negative or Hormone Receptor-low/HER2-negative Breast Cancer
Recruiting
This is a Phase III, 2-arm, randomised, open-label, multicentre, global study assessing the efficacy and safety of neoadjuvant Dato-DXd plus durvalumab followed by adjuvant durvalumab with or without chemotherapy compared with neoadjuvant pembrolizumab plus chemotherapy followed by adjuvant pembrolizumab with or without chemotherapy in participants with previously untreated TNBC or hormone receptor-low/HER2-negative breast cancer.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/18/2025
Locations: Research Site, Tacoma, Washington
Conditions: Breast Cancer