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 to Learn About a Study Medicine Called Ibuzatrelvir in Adult and Adolescent Patients With COVID-19 Who Are Not Hospitalized But Are at Risk For Severe Disease
Recruiting
The purpose of the study is to evaluate whether ibuzatrelvir is effective and safe in adults and adolescents with COVID-19 who do not need to be in the hospital but who are at high risk for progression to severe disease. Eligible participants will be randomly assigned (by chance) to receive ibuzatrelvir or matching placebo orally for 5 days. Co-administration of locally available standard of care is allowed. The total duration of the study is around 6 months.
Gender:
ALL
Ages:
12 years and above
Trial Updated:
08/13/2025
Locations: Eastside Research Associates, Redmond, Washington
Conditions: COVID-19 SARS-CoV-2 Infection
A Study of Amivantamab and mFOLFOX6 or FOLFIRI Versus Cetuximab and mFOLFOX6 or FOLFIRI as First-line Treatment in Participants With KRAS/NRAS and BRAF Wild-type Unresectable or Metastatic Left-sided Colorectal Cancer
Recruiting
The purpose of this study is to compare how long the participants are disease-free (progression-free survival) when treated with amivantamab and chemotherapy with 5-fluorouracil, leucovorin calcium (folinic acid) or levoleucovorin, oxaliplatin (mFOLFOX6) or 5-fluorouracil, leucovorin calcium (folinic acid) or levoleucovorin, and irinotecan hydrochloride (FOLFIRI) versus cetuximab and mFOLFOX6 or FOLFIRI in adult participants with Kirsten rat sarcoma viral oncogene homolog (KRAS)/ Neuroblastoma R... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/13/2025
Locations: Swedish Cancer Institute, Edmonds, Washington
Conditions: Colorectal Neoplasms
A Study of Pembrolizumab (MK-3475) With or Without Intismeran Autogene (V940) in Participants With Non-small Cell Lung Cancer (V940-009/INTerpath-009)
Recruiting
The goal of this study is to learn if people who receive intismeran autogene and pembrolizumab after surgery are cancer-free longer than people who receive placebo and pembrolizumab. Researchers want to know if giving intismeran autogene and pembrolizumab after surgery can help prevent the cancer from coming back in people with non-small cell lung cancer (NSCLC) whose tumors did not respond completely to treatment before surgery (neoadjuvant treatment).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/13/2025
Locations: Swedish Cancer Institute ( Site 0143), Seattle, Washington
Conditions: Carcinoma, Non-Small-Cell Lung
Subcutaneous Tarlatamab in Participants With Extensive Stage Small Cell Lung Cancer (DeLLphi-308)
Recruiting
The primary objective of this study is to evaluate the safety and tolerability of subcutaneous (SC) tarlatamab.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/13/2025
Locations: Swedish Cancer Institute, Seattle, Washington
Conditions: Extensive Stage Small Cell Lung Cancer
A Study to Test if TEV-56286 is Effective in Relieving Multiple System Atrophy (MSA): A Safety and Efficacy Study
Recruiting
The primary objective of the study is to evaluate the efficacy of TEV-56286 administered orally for the treatment of adult participants with Multiple System Atrophy (MSA). A secondary objective of the study is to evaluate specific efficacy parameters of TEV-56286. Another secondary objective is to evaluate the safety and tolerability of TEV-56286. The planned study period per participant is 56 weeks including a screening period (up to 4 weeks), a 48-week double-blind treatment period, and a f... Read More
Gender:
ALL
Ages:
30 years and above
Trial Updated:
08/13/2025
Locations: Teva Investigational Site 15543, Spokane, Washington
Conditions: Multiple System Atrophy
SIMPLAAFY Clinical Trial
Recruiting
The primary objective is to demonstrate the safety and effectiveness of two monotherapy regimens versus dual antiplatelet (DAPT) therapy following post-implant with the WATCHMAN FLX Pro device in a commercial clinical setting.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/13/2025
Locations: Overlake Hospital Medical Center, Bellevue, Washington
Conditions: Atrial Fibrillation, Stroke, Bleeding
A Study to Evaluate the Efficacy and Safety of Tulisokibart (MK-7240) in Participants With Moderate to Severe Crohn's Disease (MK-7240-008)
Recruiting
The purpose of this protocol is to evaluate the efficacy and safety of tulisokibart in participants with moderately to severely active Crohn's disease. Study 1's primary hypotheses are that at least 1 tulisokibart dose level is superior to placebo in the proportion of participants achieving clinical remission per Crohn's Disease Activity Index score (\<150, US/FDA) or per stool frequency and abdominal pain score (EU/EMA) and in the proportion of participants achieving endoscopic response at Week... Read More
Gender:
ALL
Ages:
Between 16 years and 80 years
Trial Updated:
08/13/2025
Locations: Washington Gastroenterology - Bellevue ( Site 5040), Bellevue, Washington
Conditions: Crohn's Disease
A Study Comparing Niraparib With Temozolomide in Adult Participants With Newly-diagnosed, MGMT Unmethylated Glioblastoma
Recruiting
The goal of this Phase 3 clinical trial is to compare the efficacy of niraparib versus temozolomide (TMZ) in adult participants with newly-diagnosed, MGMT unmethylated glioblastoma multiforme (GBM). The main questions it aims to answer are: Does niraparib improve progression-free survival (PFS) compared to TMZ? Does niraparib improve overall survival (OS) compared to TMZ? Participants will be randomly assigned to one of two treatment arms: niraparib or TMZ. * study drug (Niraparib) or * comp... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/13/2025
Locations: University of Washington Medical Center, Seattle, Washington
Conditions: Glioblastoma, GBM, Brain Neoplasms, Adult, Malignant, Brain Tumor
A Study to Assess the Safety and Efficacy of Oral Armour Thyroid Compared to Synthetic T4 for the Treatment of Primary Hypothyroidism in Adult Participants
Recruiting
This study will evaluate the efficacy and safety of Armour Thyroid treatment compared with synthetic T4 in subjects who have primary hypothyroidism and are currently stabilized (i.e., in-range thyroid-stimulating hormone \[TSH\]) on synthetic T4 treatment. This study will also therefore evaluate the efficacy and safety of dose conversion from synthetic T4 therapy to Armour Thyroid therapy.
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
08/13/2025
Locations: Rainier Clinical Research /ID# 255802, Renton, Washington
Conditions: Hypothyroidism
Iberdomide Versus Observation Off Therapy After Idecabtagene Vicleucel CAR-T for Multiple Myeloma
Recruiting
This phase II trial compares iberdomide maintenance therapy to disease monitoring for improving survival in patients who have received idecabtagene vicleucel (a type of chimeric antigen receptor T-cell \[CAR-T\] therapy) for multiple myeloma. The usual approach after treatment with idecabtagene vicleucel is to monitor the multiple myeloma without giving myeloma medications. There is currently no medication approved specifically for use after idecabtagene vicleucel treatment. Upon administration,... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/13/2025
Locations: Swedish Cancer Institute-Edmonds, Edmonds, Washington
Conditions: Multiple Myeloma
Study Assessing Activity of Intravenous (IV) Etentamig Monotherapy Versus Standard Available Therapies in Adult Participants With Relapsed or Refractory Multiple Myeloma
Recruiting
Multiple myeloma (MM) is a cancer of the blood's plasma cells. The cancer is typically found in the bones and bone marrow (the spongy tissue inside of the bones) and can cause bone pain, fractures, infections, weaker bones, and kidney failure. Treatments are available, but MM can come back (relapsed) or may not get better (refractory) with treatment. This is a study to determine change in disease symptoms of etentamig compared to standard available therapies in adult participants with relapsed/r... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/13/2025
Locations: Northwest Medical Specialties Tacoma /ID# 276281, Tacoma, Washington
Conditions: Multiple Myeloma
A Study Testing the Combination of Dasatinib or Imatinib to Chemotherapy Treatment With Blinatumomab for Children, Adolescents, and Young Adults With Philadelphia Chromosome Positive (Ph+) or ABL-Class Philadelphia Chromosome-Like (Ph-Like) B-cell Acute Lymphoblastic Leukemia (B-ALL)
Recruiting
This pilot trial assesses the effect of the combination of blinatumomab with dasatinib or imatinib and standard chemotherapy for treating patients with Philadelphia chromosome positive (Ph+) or ABL-class Philadelphia chromosome-like (Ph-like) B-Cell acute lymphoblastic leukemia (B-ALL). Blinatumomab is a bispecific antibody that binds to two different proteins-one on the surface of cancer cells and one on the surface of cells in the immune system. An antibody is a protein made by the immune syst... Read More
Gender:
ALL
Ages:
Between 366 days and 46 years
Trial Updated:
08/13/2025
Locations: Seattle Children's Hospital, Seattle, Washington
Conditions: B Acute Lymphoblastic Leukemia