The state of Washington currently has 87 active clinical trials seeking participants for Breast Cancer research studies. These trials are conducted in various cities, including Seattle, Spokane, Tacoma and Vancouver.
Phase IIIb Study of Ribociclib + ET in Early Breast Cancer
Recruiting
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 (iBCFS), in a close to clinical practice patient population with HR-positive (HR+), HER2-negative (HER2-), Anatomic Stage Group III, IIB, and a subset of Stage IIA Early Breast Cancer (EBC).
Gender:
ALL
Ages:
Between 18 years and 100 years
Trial Updated:
07/14/2025
Locations: Northwest Medical Specialties, Tacoma, Washington
Conditions: Early Breast Cancer
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
Recruiting
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 metastatic HER2-positive breast cancer who have progressed on, or are intolerant to, previous T-DXd treatment.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/14/2025
Locations: Fred Hutchinson Cancer Center, Seattle, Washington
Conditions: Metastatic HER2-positive Breast Cancer
Testing Longer Duration Radiation Therapy Versus the Usual Radiation Therapy in Patients With Cancer That Has Spread to the Brain
Recruiting
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. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. FSRS delivers a high dose of radiation to the tumor over 3 treatments. SRS is a type of external radiation therapy that uses special equipment to position the patient and precisely give... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/14/2025
Locations: Valley Medical Center, Renton, Washington +2 locations
Conditions: Anatomic Stage IV Breast Cancer AJCC v8, Metastatic Breast Carcinoma, Metastatic Digestive System Carcinoma, Metastatic Lung Non-Small Cell Carcinoma, Metastatic Malignant Neoplasm in the Brain, Metastatic Malignant Solid Neoplasm, Metastatic Melanoma, Metastatic Renal Cell Carcinoma, Stage IV Lung Cancer AJCC v8, Stage IV Renal Cell Cancer AJCC v8
Adding an Immunotherapy Drug, MEDI4736 (Durvalumab), to the Usual Chemotherapy Treatment (Paclitaxel, Cyclophosphamide, and Doxorubicin) for Stage II-III Breast Cancer
Recruiting
This phase III trial compares the addition of an immunotherapy drug (durvalumab) to usual chemotherapy versus usual chemotherapy alone in treating patients with MammaPrint High 2 Risk (MP2) stage II-III hormone receptor positive, HER2 negative breast cancer. Immunotherapy with monoclonal antibodies, such as durvalumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Chemotherapy drugs, such as paclitaxel, doxorubicin, and... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/12/2025
Locations: Swedish Cancer Institute-Edmonds, Edmonds, Washington +6 locations
Conditions: Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, HER2-Negative Breast Carcinoma, Hormone Receptor-Positive Breast Carcinoma
Targeted Therapy Directed by Genetic Testing in Treating Patients With Locally Advanced or Advanced Solid Tumors, The ComboMATCH Screening Trial
Recruiting
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 advanced) or have spread to other places in the body (advanced) and have progressed on at least one line of standard systemic therapy or have no standard treatment that has been shown to prolong overall survival may be candidates for these trials. Genetic tests loo... Read More
Gender:
ALL
Ages:
All
Trial Updated:
07/12/2025
Locations: Swedish Cancer Institute-Edmonds, Edmonds, Washington +6 locations
Conditions: Advanced Malignant Solid Neoplasm, Locally Advanced Malignant Solid Neoplasm, Metastatic Malignant Solid Neoplasm, Unresectable Malignant Solid Neoplasm, Recurrent Endometrial Carcinoma, Recurrent Fallopian Tube Carcinoma, Recurrent Ovarian Carcinoma, Recurrent Primary Peritoneal Carcinoma, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8, Metastatic HER2-Negative Breast Carcinoma, Unresectable HER2-Negative Breast Carcinoma, Malignant Female Reproductive System Neoplasm, Recurrent Malignant Female Reproductive System Neoplasm, Recurrent Malignant Solid Neoplasm
National Cancer Institute "Cancer Moonshot Biobank"
Recruiting
This trial collects multiple tissue and blood samples, along with medical information, from cancer patients. The "Cancer Moonshot Biobank" is a longitudinal study. This means it collects and stores samples and information over time, throughout the course of a patient's cancer treatment. By looking at samples and information collected from the same people over time, researchers hope to better understand how cancer changes over time and over the course of medical treatments.
Gender:
ALL
Ages:
13 years and above
Trial Updated:
07/11/2025
Locations: Valley Medical Center, Renton, Washington +1 locations
Conditions: Clinical Stage IV Gastroesophageal Junction Adenocarcinoma AJCC v8, Lung Non-Small Cell Carcinoma, Lung Small Cell Carcinoma, Malignant Solid Neoplasm, Stage III Lung Cancer AJCC v8, Stage IV Colorectal Cancer AJCC v8, Stage IV Lung Cancer AJCC v8, Stage IVB Prostate Cancer AJCC v8, Acute Myeloid Leukemia, Metastatic Prostate Carcinoma, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8, Clinical Stage IV Esophageal Adenocarcinoma AJCC v8, Clinical Stage IV Gastric Cancer AJCC v8, Multiple Myeloma, Stage III Ovarian Cancer AJCC v8, Stage IV Ovarian Cancer AJCC v8, Fallopian Tube Carcinoma, Hormone Receptor-Positive Breast Carcinoma, Invasive Breast Carcinoma, Melanoma, Ovarian Carcinoma, Ovarian High Grade Serous Adenocarcinoma, Primary Peritoneal Carcinoma, Stage III Fallopian Tube Cancer AJCC v8, Stage IV Fallopian Tube Cancer AJCC v8, Triple-Negative Breast Carcinoma, Esophageal Carcinoma, Gastric Carcinoma
A Study Evaluating the Efficacy and Safety of Adjuvant Giredestrant Compared With Physician's Choice of Adjuvant Endocrine Monotherapy in Participants With Estrogen Receptor-Positive, HER2-Negative Early Breast Cancer (lidERA Breast Cancer)
Recruiting
This is a Phase III, global, randomized, open-label, multicenter, study evaluating the efficacy and safety of adjuvant giredestrant compared with endocrine therapy of physician's choice in participants with medium- and high-risk Stage I-III histologically confirmed estrogen receptor (ER)-positive and human epidermal growth factor receptor 2 (HER2)-negative early breast cancer. In addition, an open-label exploratory substudy will explore the safety and efficacy of giredestrant in combination wit... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/11/2025
Locations: Swedish Cancer Institute, Seattle, Washington
Conditions: Early Breast Cancer
Sacituzumab Tirumotecan (MK-2870) Plus Pembrolizumab Versus TPC in TNBC Who Did Not Achieve pCR (MK-2870-012)
Recruiting
This is a randomized, open-label study comparing the efficacy and safety of adjuvant sacituzumab tirumotecan (MK-2870) in combination with pembrolizumab compared to treatment of physician's choice (TPC) in participants with triple-negative breast cancer (TNBC) who received neoadjuvant therapy and did not achieve a pathological complete response (pCR) at surgery. The primary objective is to compare sacituzumab tirumotecan plus pembrolizumab to TPC (pembrolizumab or pembrolizumab plus capecitabine... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/11/2025
Locations: Northwest Medical Specialties, PLLC ( Site 0093), Tacoma, Washington
Conditions: Triple-Negative Breast Cancer
BGB-21447 (Bcl-2 Inhibitor) Combinations for Adults With Hormone-Receptor Positive (HR+)/Human Epidermal Growth Factor Receptor 2 Negative (HER2-) Metastatic Breast Cancer
Recruiting
The purpose of this study is to assess the safety and tolerability of BGB-21447 (a B-cell leukemia/lymphoma 2 inhibitor, Bcl-2i) in combination with fulvestrant, with or without BGB-43395 (cyclin-dependent kinase 4 inhibitor, CDK4i), in adults with HR+/HER2- metastatic breast cancer.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/10/2025
Locations: Fred Hutchinson Cancer Research Center, Seattle, Washington
Conditions: Hormone-receptor-positive Breast Cancer, HER2-negative Breast Cancer, Metastatic Breast Cancer
Effect of HSD3B1 (1245C) Gene Mutation on Treatment of Stage I-III Breast Cancer
Recruiting
This stage IV trial examines how a mutation in HSD3B1 (1245C) gene affects treatment of stage I-III breast cancer. This trial may help researchers determine if mutations in HSD3B1 decreases the efficacy of aromatase inhibitor therapy such as letrozole. Letrozole may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth.
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
07/10/2025
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, Breast Adenocarcinoma, Invasive Breast Carcinoma of No Special Type
Capivasertib + CDK4/6i + Fulvestrant for Advanced/Metastatic HR+/HER2- Breast Cancer (CAPItello-292)
Recruiting
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, Unresectable or Metastatic Breast Cancer (CAPItello-292)
Gender:
ALL
Ages:
Between 18 years and 99 years
Trial Updated:
07/09/2025
Locations: Research Site, Tacoma, Washington
Conditions: Locally Advanced (Inoperable) or Metastatic Breast Cancer
A Study of Elacestrant Versus Standard Endocrine Therapy in Women and Men With ER+,HER2-, Early Breast Cancer With High Risk of Recurrence
Recruiting
The primary goal of this study is to evaluate the effectiveness of elacestrant versus standard endocrine therapy in participants with node-positive, Estrogen Receptor-positive (ER+), Human Epidermal Growth Factor-2 negative (HER2-) early breast cancer with high risk of recurrence.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/08/2025
Locations: Virginia Mason Medical Center, Seattle, Washington +3 locations
Conditions: Breast Cancer