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.
Testing the Addition of Radiation Therapy to the Usual Immune Therapy Treatment (Atezolizumab) for Extensive Stage Small Cell Lung Cancer, The RAPTOR Trial
NCT04402788
Recruiting
This phase II/III trial compares the effect of adding radiation therapy to the usual maintenance therapy with atezolizumab versus atezolizumab alone in patients who have already received atezolizumab plus chemotherapy for the treatment of small cell lung cancer that has spread outside of the lung or to other parts of the body (extensive stage). Immunotherapy with monoclonal antibodies, such as atezolizumab, may help the body's immune system attack the cancer, and may interfere with the ability o... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/22/2025
Locations: PeaceHealth Saint Joseph Medical Center, Bellingham, Washington
Conditions: Extensive Stage Lung Small Cell Carcinoma
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A 12-Month Study of Lasmiditan (LY573144) Treatment in Children Aged 6 to 17 With Migraine
NCT04396574
Recruiting
The reason for this 12-month, open-label study is to see if the study drug lasmiditan is safe and effective for the intermittent acute treatment of migraine in children aged 6 to 17. The study will last about 12 months and may include up to 7 visits.
Gender:
ALL
Ages:
Between 6 years and 17 years
Trial Updated:
08/22/2025
Locations: Northwest Clinical Research Center, Bellevue, Washington
Conditions: Migraine
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A Study of Lasmiditan (LY573144) Treatment in Children Aged 6 to 17 With Migraine
NCT04396236
Recruiting
The reason for this study is to see if lasmiditan is safe and effective in children aged 6 to 17 with migraine. The study will last up to 20 weeks and may include up to 4 visits.
Gender:
ALL
Ages:
Between 6 years and 17 years
Trial Updated:
08/22/2025
Locations: Northwest Clinical Research Center, Bellevue, Washington
Conditions: Migraine
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Osimertinib With or Without Bevacizumab as Initial Treatment for Patients With EGFR-Mutant Lung Cancer
NCT04181060
Recruiting
This phase III trial compares the effect of bevacizumab and osimertinib combination vs. osimertinib alone for the treatment of non-small cell lung cancer that has spread outside of the lungs (stage IIIB-IV) and has a change (mutation) in a gene called EGFR. The EGFR protein is involved in cell signaling pathways that control cell division and survival. Sometimes, mutations in the EGFR gene cause EGFR proteins to be made in higher than normal amounts on some types of cancer cells. This causes can... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/22/2025
Locations: Providence Regional Cancer System-Aberdeen, Aberdeen, Washington
Conditions: Advanced Lung Non-Squamous Non-Small Cell Carcinoma, Metastatic Lung Non-Squamous Non-Small Cell Carcinoma, Recurrent Lung Non-Squamous Non-Small Cell Carcinoma, Stage IIIB Lung Cancer AJCC v8, Stage IV Lung Cancer AJCC v8
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A Study of the Drugs Selumetinib vs. Carboplatin and Vincristine in Patients With Low-Grade Glioma
NCT04166409
Recruiting
This phase III trial compares the effect of selumetinib versus the standard of care treatment with carboplatin and vincristine (CV) in treating patients with newly diagnosed or previously untreated low-grade glioma (LGG) that does not have a genetic abnormality called BRAFV600E mutation and is not associated with systemic neurofibromatosis type 1. Selumetinib works by blocking some of the enzymes needed for cell growth and may kill tumor cells. Carboplatin and vincristine are chemotherapy drugs... Read More
Gender:
ALL
Ages:
Between 2 years and 21 years
Trial Updated:
08/22/2025
Locations: Seattle Children's Hospital, Seattle, Washington
Conditions: Low Grade Glioma, Low Grade Astrocytoma, Metastatic Low Grade Astrocytoma, Metastatic Low Grade Glioma
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A Study to Evaluate the Long-Term Efficacy and Safety of Mirikizumab in Participants With Moderately to Severely Active Ulcerative Colitis (LUCENT 3)
NCT03519945
Recruiting
This study is designed to evaluate the long-term efficacy and safety of mirikizumab in participants with moderately to severely active ulcerative colitis (UC). The study will last up to 3 years. Participants who complete the 3-year study may continue to receive mirikizumab until it is (outside of this study) in their country or until they meet other discontinuation criteria.
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
08/22/2025
Locations: Washington Gastroenterology - Tacoma, Tacoma, Washington
Conditions: Ulcerative Colitis
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A Study of Galcanezumab (LY2951742) in Participants 6 to 17 Years of Age With Episodic Migraine
NCT03432286
Recruiting
The main purpose of this study is to evaulate the efficacy and safety of galcanezumab in participants 6 to 17 years of age for the preventive treatment of episodic migraine. The primary objective is to demonstrate the superiority of galcanezumab versus placebo in the reduction of monthly migraine headache days across the 3-month double-blind treatment period.
Gender:
ALL
Ages:
Between 6 years and 17 years
Trial Updated:
08/22/2025
Locations: Northwest Clinical Research Center, Bellevue, Washington
Conditions: Episodic Migraine
Register for Updates
Testing Docetaxel-Cetuximab or the Addition of an Immunotherapy Drug, Atezolizumab, to the Usual Chemotherapy and Radiation Therapy in High-Risk Head and Neck Cancer
NCT01810913
Recruiting
This phase II/III trial studies how well radiation therapy works when given together with cisplatin, docetaxel, cetuximab, and/or atezolizumab after surgery in treating patients with high-risk stage III-IV head and neck cancer the begins in the thin, flat cells (squamous cell). Specialized radiation therapy that delivers a high dose of radiation directly to the tumor may kill more tumor cells and cause less damage to normal tissue. Drugs used in chemotherapy, such as cisplatin and docetaxel, wor... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/22/2025
Locations: Saint Francis Hospital, Federal Way, Washington
Conditions: Stage III Hypopharyngeal Squamous Cell Carcinoma AJCC v7, Stage III Laryngeal Squamous Cell Carcinoma AJCC v6 and v7, Stage III Oral Cavity Squamous Cell Carcinoma AJCC v6 and v7, Stage III Oropharyngeal Squamous Cell Carcinoma AJCC v7, Stage IV Hypopharyngeal Squamous Cell Carcinoma AJCC v7, Stage IV Laryngeal Squamous Cell Carcinoma AJCC v7, Stage IV Oral Cavity Squamous Cell Carcinoma AJCC v6 and v7, Stage IV Oropharyngeal Squamous Cell Carcinoma AJCC v7, Oropharyngeal p16INK4a-Negative Squamous Cell Carcinoma
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Safety, Reactogenicity, and Immunogenicity Trial of STX-S SARS-CoV-2 Vaccine in Adults
NCT07095231
Recruiting
This phase 1 clinical trial will evaluate the safety, reactogenicity, and immunogenicity of STX-S in adults who have previously received a primary series and at least one booster with an authorized or licensed SARS-CoV-2 parenteral vaccine. The study is designed as a non-randomized, open-label, dose-escalation clinical trial evaluating three dose levels of STX-S. A sample size of 60 participants (20 participants per dose cohort) is anticipated. The primary objective is to evaluate the safety and... Read More
Gender:
ALL
Ages:
Between 18 years and 64 years
Trial Updated:
08/21/2025
Locations: Kaiser Permanente Washington Health Research Institute, Seattle, Washington
Conditions: COVID-19
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A Study to Compare the Efficacy and Safety of Golcadomide in Combination With Rituximab (Golca + R) vs Investigator's Choice in Participants With Relapsed/Refractory Follicular Lymphoma (GOLSEEK-4)
NCT06911502
Recruiting
The study is designed as a multicenter, randomized, open label Phase 3 study to compare the efficacy and safety of golcadomide in combination with rituximab vs investigator's choice in participants with relapsed/refractory follicular lymphoma who have received at least one line of prior systemic therapy.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/21/2025
Locations: Local Institution - 0143, Vancouver, Washington
Conditions: Follicular Lymphoma
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A Study to Assess the Change in Disease Activity in Adult Participants With Moderate to Severe Ulcerative Colitis Treated With Risankizumab Compared to Vedolizumab
NCT06880744
Recruiting
Ulcerative colitis (UC) is a type of inflammatory bowel disease that causes inflammation and bleeding from the lining of the rectum and colon (large intestine).This study will evaluate how safe and effective risankizumab is compared to vedolizumab in treating adult participants with moderate to severe UC who are naive to targeted therapies (TaTs). Risankizumab and vedolizumab are approved medications for moderate to severe UC in multiple countries. Participants who meet the eligibility criteria... Read More
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
08/21/2025
Locations: Gi Alliance - Bellevue /ID# 274264, Bellevue, Washington
Conditions: Ulcerative Colitis
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Polycystic Kidney Disease 1 (PKD1) Gene Variant Groups in Autosomal Dominant Polycystic Kidney Disease
NCT06747572
Recruiting
The purpose of this study is to estimate the prevalence, demographic, and clinical characteristics of PKD1/2 gene variant groups in the ADPKD population.
Gender:
ALL
Ages:
Between 12 years and 65 years
Trial Updated:
08/21/2025
Locations: Swedish Center for Comprehensive Care, Seattle, Washington
Conditions: Autosomal Dominant Polycystic Kidney Disease (ADPKD)
Register for Updates