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Breast Cancer clinical trials in Everett, WA
6 studies for Breast Cancer are looking for participants at sites in and around Everett (within about 30 miles). Open a study to see who can join and how to contact the study team.
Recruiting for a study here? Feature it at the top of this page — $99 for 30 days →
A Study of Tersolisib (LY4064809/STX-478) With Other Anti-Cancer Treatments in Participants With Advanced Breast Cancer With a Genetic Change (PIK3CA)
RecruitingPhase 3
- Providence Regional Cancer Partnership, Everett
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
RecruitingPhase 3
- Providence Regional Cancer Partnership, Everett
Collecting Blood Samples From Patients With and Without Cancer to Evaluate Tests for Early Cancer Detection
RecruitingObservational studyHealthy volunteers welcome
- Providence Regional Cancer Partnership, Everett
- Providence Swedish Cancer Institute, Everett
Rinatabart Sesutecan (Rina-S, PRO1184, GEN1184) for Advanced Solid Tumors (GCT1184-01/ PRO1184-001)
RecruitingPhase 1/2
- Swedish Cancer Institute, Everett
Assessing Benefits and Harms of Cannabis/Cannabinoid Use Among Cancer Patients Treated in Community Oncology Clinics
RecruitingObservational study
- Jefferson Healthcare, Port Townsend · 28 mi away
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
RecruitingPhase 3
- Providence Regional Cancer Partnership, Everett
- Providence Swedish Cancer Institute, Everett
About Breast Cancer
Breast cancer is a cancer that starts in the breast tissue, when cells change and grow out of control. Learn about the types, diagnosis, and treatments.
More about Breast Cancer on MedlinePlus
Breast Cancer trials in other cities
- New York City, NY144 studies
- Houston, TX126 studies
- Boston, MA110 studies
- Nashville, TN78 studies
- Los Angeles, CA73 studies
- Edison, NJ70 studies
- Queens, NY67 studies
- Durham, NC63 studies
- St. Louis, MO63 studies
- Chicago, IL59 studies
- Dallas, TX54 studies
- Philadelphia, PA51 studies
Other studies in Everett
- Major Depressive Disorder7 studies
- Depression5 studies
- Colorectal Cancer5 studies
- Schizophrenia4 studies
- Prostate Cancer4 studies
- Ovarian Cancer3 studies
- Bipolar Disorder3 studies
- Melanoma3 studies
- Attention Deficit Hyperactivity Disorder3 studies
From ClinicalTrials.gov, data retrieved Nov 15, 2026. Each study sets its own eligibility; the study team decides who can join.