Washington is currently home to 1729 active clinical trials, seeking participants for engagement in research studies. These trials take place at a variety of cities in the state, including Seattle, Spokane, Tacoma and Vancouver. Whether you're a healthy volunteer interested in paid medical research or someone seeking trials related to a specific condition, the state offers a diverse array of opportunities in your vicinity.
A Study of Retatrutide (LY3437943) in the Maintenance of Weight Reduction in Individuals With Obesity
Recruiting
This is a study of retatrutide in participants with obesity. The main purpose is to learn more about how retatrutide maintains body weight loss. The study will have two treatment phases: an 80 week lead-in phase in which all participants will take retatrutide dose 1 and a 36 week randomized, double-blinded phase in which participants will either take retatrutide dose 1, retatrutide dose 2, or switch to placebo. Participation in the study will last around 125 weeks.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/28/2025
Locations: Northwest Clinical Research Center, Bellevue, Washington
Conditions: Obesity
PUL-042 Treatment in Patients With Parainfluenza Virus (PIV), Human Metapneumovirus (hMPV) or Respiratory Syncytial Virus (RSV)
Recruiting
The purpose of this research study is to try to see whether an experimental drug, PUL 042 Inhalation Solution (PUL 042), is effective in reducing the severity of lung infections in patients with hematologic malignancies and recipients of hematopoietic stem cell transplantation with documented viral infections due to PIV, hMPV, or RSV. PUL-042 or a placebo will be administered 3 times over a 6-day period. The total duration of the study will be approximately 30 days.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/28/2025
Locations: Fred Hutchinson Cancer Center, Seattle, Washington
Conditions: Hematologic Malignancies, Hematopoietic Stem Cell Transplant (HSCT)
Safety and Pharmacodynamic Effects of BIIB122 in Participants With LRRK2-Associated Parkinson's Disease (LRRK2-PD)
Recruiting
This Phase 2a, multicenter, randomized, 12-week double-blind, placebo-controlled, parallel-group study, followed by an OLE, is designed to evaluate the safety, tolerability, and pharmacodynamic effects of BIIB122 in participants with LRRK2-PD. LRRK2-PD is defined as Parkinson's Disease (PD) in individuals who are heterozygous or homozygous carriers of a pathogenic LRRK2 variant that increases LRRK2 kinase activity.
Gender:
ALL
Ages:
30 years and above
Trial Updated:
07/28/2025
Locations: Evergreen Health Laboratory, Kirkland, Washington
Conditions: Parkinson Disease
A Study to Assess the Efficacy and Safety of Afimkibart (Also Known as RO7790121) for Induction and Maintenance Therapy in Participants With Moderately to Severely Active Ulcerative Colitis
Recruiting
This Phase III, multicenter, double-blind, placebo-controlled, treat-through study will evaluate the efficacy and safety of Afimkibart (RO7790121) compared with placebo in participants with moderately to severely active ulcerative colitis (UC).
Gender:
ALL
Ages:
Between 16 years and 80 years
Trial Updated:
07/28/2025
Locations: The Vancouver Clinic, Vancouver, Washington
Conditions: Moderately to Severely Active Ulcerative Colitis
A Study Evaluating Efruxifermin in Subjects With Compensated Cirrhosis Due to NASH/MASH
Recruiting
This is a multi-center evaluation of efruxifermin (EFX) in a randomized, double-blind, placebo-controlled study in subjects with compensated cirrhosis due to NASH/MASH.
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
07/28/2025
Locations: Akero Clinical Study Site, Seattle, Washington
Conditions: NASH - Nonalcoholic Steatohepatitis, MASH - Metabolic Dysfunction-Associated Steatohepatitis
Clinical Trial of Upfront Haploidentical or Unrelated Donor BMT to Restore Normal Hematopoiesis in Aplastic Anemia
Recruiting
BMT CTN 2207 will investigate the use of marrow transplantation for treatment of severe aplastic anemia that has not previously been treated.
Gender:
ALL
Ages:
Between 3 years and 75 years
Trial Updated:
07/28/2025
Locations: Fred Hutchinson Cancer Center, Seattle, Washington
Conditions: Severe Aplastic Anemia
A Phase 3 Study to Evaluate Petosemtamab Compared With Investigator's Choice Monotherapy in Previously Treated Head and Neck Squamous Cell Carcinoma Patients
Recruiting
This is a phase 3 open-label, randomized, controlled, multicenter study to compare petosemtamab vs investigator's choice monotherapy in HNSCC patients for the second- and third-line treatment of incurable metastatic/recurrent disease.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/28/2025
Locations: Site 6, Spokane, Washington
Conditions: Head and Neck Squamous Cell Carcinoma
Trial of Therapeutic Cancer Vaccine OSE2101 in Patients With Non-Small Cell Lung Cancer and Secondary Resistance to Immune Checkpoint Inhibitor
Recruiting
Multicenter, randomized (2:1), open-label phase 3 study in HLA-A2 positive patients with squamous and non-squamous metastatic NSCLC with ICI secondary resistance. Patients will be randomized into 2 arms (randomization 2:1): experimental Arm A with OSE2101 monotherapy or control Arm B SoC with docetaxel monotherapy. Stratification factors will be histology (squamous versus non squamous) and ECOG Performance Status (0 versus 1).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/28/2025
Locations: Northwest Medical Specialties - Bonney Lake, Bonney Lake, Washington
Conditions: Patients With Non-Small Cell Lung Cancer
ADVENT Post Approval Study
Recruiting
The ADVENT Post Approval Study (PAS) is a prospective, global, multicenter, observational study.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/28/2025
Locations: University of Washington Medical Center, Seattle, Washington
Conditions: Paroxysmal Atrial Fibrillation
A Study of Adjuvant Cretostimogene Grenadenorepvec for Treatment of Intermediate Risk NMIBC Following TURBT
Recruiting
This is a Phase 3, open-label, randomized trial designed to evaluate the RFS of TURBT followed by cretostimogene grenadenorepvec versus TURBT followed by surveillance for the treatment of participants with IR-NMIBC.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/28/2025
Locations: Benaroya Research Institute at Virginia Mason, Seattle, Washington
Conditions: Non Muscle Invasive Bladder Cancer, Urologic Cancer, Bladder Cancer, Urothelial Carcinoma
Study of GalaFLEX LITE™ Scaffold in Treatment of Capsular Contracture After Breast Implant Augmentation
Recruiting
Prospective, randomized, controlled study to assess the safety and effectiveness of GalaFLEX LITE™ Scaffold in revision surgery for reduction of capsular contracture recurrence and/or malposition in implant-based breast augmentation patients versus patients undergoing conventional revision surgery with no supportive matrix or acellular dermal matrix (ADM). Subjects will be randomized 2:1 to receive either GalaFLEX LITE™ Scaffold or standard care (no ADM or matrix placement). This study is design... Read More
Gender:
FEMALE
Ages:
Between 22 years and 66 years
Trial Updated:
07/28/2025
Locations: Allen Gabriel MD, Vancouver, Washington
Conditions: Capsular Contracture Associated With Breast Implant, Capsular Contracture Grade III, Capsular Contracture Grade IV
Clinical, Imaging, and Endoscopic Outcomes of Children Newly Diagnosed With Crohn's Disease
Recruiting
Crohn's disease (CD) is a condition that causes inflammation (swelling, redness) of the lining and wall of the small intestine, large intestine, or both. CD may be associated with abdominal cramps/pain, diarrhea, blood in the stool, weight loss, or delayed growth in children. While the exact cause of CD is not certain it is thought that the immune system located in the intestine reacts abnormally to the large number of bacteria contained there. The investigators think that diet, exposure to anti... Read More
Gender:
ALL
Ages:
Between 6 years and 17 years
Trial Updated:
07/28/2025
Locations: Seattle Children's Hospital, Seattle, Washington
Conditions: Crohn Disease