Data sourced from ClinicalTrials.gov (NIH registry) Updated weekly IRB-supervised studies only
Home/WA/Seattle
Updated August 2026 from ClinicalTrials.gov

Paid Clinical Trials in Seattle, WA

Studies commonly pay $75 to $4,500 per completed study

1,510 clinical trials are currently recruiting participants within 30 miles of Seattle. Listings below come straight from the official NIH registry, alongside the area's top-rated research centers with real Google reviews.

1,510studies recruiting
9+research centers nearby
6condition categories
Live from the NIH registry

Studies recruiting near Seattle right now

Top 25 of 1,510 recruiting studies, sorted by proximity — each links to its official registry page

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)

B Acute Lymphoblastic Leukemia Phase 2 Interventional 222 participants sought
Seattle Children's Hospital — Seattle, Washington (1.1 mi) · Sponsor: National Cancer Institute (NCI)
See eligibility & contact on ClinicalTrials.gov (NCT06124157)

QuantifyHER: Quantitative Immunofluorescence and/or RT-qPCR for Measuring HER2 in HER2-low Metastatic Breast Cancer

HER2-positive Metastatic Breast Cancer N/A Observational 200 participants sought
University of Washington - Fred Hutchinson Cancer Center — Seattle, Washington (1.1 mi) · Sponsor: Abramson Cancer Center at Penn Medicine
See eligibility & contact on ClinicalTrials.gov (NCT06551116)

GATEWAY: Safety Evaluation of the MiniMed™ NMX8-AID System in Children and Adults Living With Diabetes

Type 1 Diabetes Mellitus, Type 2 Diabetes Mellitus N/A Interventional 400 participants sought
Seattle Children's — Seattle, Washington (1.1 mi) · Sponsor: Medtronic MiniMed, Inc.
See eligibility & contact on ClinicalTrials.gov (NCT07228117)

A Study to Evaluate the Safety of AB-1003 (Previously LION-101) in Subjects With Genetic Confirmation of LGMD2I/R9 (Part1)

Limb Girdle Muscular Dystrophy, Limb-Girdle Muscular Dystrophy Type 2 Phase 1, Phase 2 Interventional 10 participants sought
University of Washington Medical Center — Seattle, Washington (1.1 mi) · Sponsor: AskBio Inc
See eligibility & contact on ClinicalTrials.gov (NCT05230459)

Detailed Phenotypic and Genotype Study to Correlate RB1 Mutations Relating to Primary Ocular Tumors and Secondary Extra-ocular Metastasis.

Retinoblastoma Bilateral, Retinoblastoma Unilateral N/A Observational 100 participants sought
University of Washington — Seattle, Washington (1.1 mi) · Sponsor: University of Washington
See eligibility & contact on ClinicalTrials.gov (NCT06725173)

DESTINY-Endometrial01: A Phase III Study of Trastuzumab Deruxtecan Plus Rilvegostomig or Pembrolizumab as First-Line Treatment of HER2-Expressing (IHC 3+/2+), Mismatch Repair Proficient (pMMR) Endometrial Cancer

Endometrial Cancer Phase 3 Interventional 600 participants sought
Research Site — Seattle, Washington (1.1 mi) · Sponsor: AstraZeneca
See eligibility & contact on ClinicalTrials.gov (NCT06989112)

ACT001 for the Treatment of Diffuse Intrinsic Pontine Gliomas and H3K27-altered High Grade Gliomas

Diffuse Intrinsic Pontine Gliomas (DIPG), Progressive DIPG Phase 2 Interventional 60 participants sought
Seattle Children's Hospital — Seattle, Washington (1.1 mi) · Sponsor: Nationwide Children's Hospital
See eligibility & contact on ClinicalTrials.gov (NCT06838676)

A Study to Investigate Efficacy and Safety of SAR441566 in Patients With Ulcerative Colitis

Colitis Ulcerative Phase 2 Interventional 204 participants sought
University of Washington Medical Center- Site Number : 8400014 — Seattle, Washington (1.1 mi) · Sponsor: Sanofi
See eligibility & contact on ClinicalTrials.gov (NCT06867094)

Lung-MAP: A Master Screening Protocol for Previously-Treated Non-Small Cell Lung Cancer

Previously Treated Non-Small Cell Lung Cancer Phase 2, Phase 3 Interventional 10,000 participants sought
Swedish Medical Center-Ballard Campus — Seattle, Washington (1.1 mi) · Sponsor: SWOG Cancer Research Network
See eligibility & contact on ClinicalTrials.gov (NCT03851445)

This Study Will Explore Whether a Combination of the Investigational Drug Mevrometostat (PF-06821497) and Enzalutamide Will Work Better Than Taking Enzalutamide Alone in Participants With mCSPC Who Are ARPI naïve.

Metastatic Castration Sensitive Prostate Cancer (mCSPC), Hormone Sensitive Prostate Cancer Phase 3 Interventional 1,000 participants sought
Northwest Medical Specialties, PLLC — Federal Way, Washington (20.7 mi) · Sponsor: Pfizer
See eligibility & contact on ClinicalTrials.gov (NCT07028853)

Functional Imaging in Prediction of Response to Abemaciclib for Advanced Hormone Receptor-Positive, HER2-Negative Breast Cancer

Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8 Phase 2 Interventional 60 participants sought
Fred Hutch/University of Washington Cancer Consortium — Seattle, Washington (1.1 mi) · Sponsor: University of Washington
See eligibility & contact on ClinicalTrials.gov (NCT06179303)

E-Mindfulness Approaches for Living After Breast Cancer

Breast Cancer, Depression Phase 3 Interventional 402 participants sought
Saint Joseph Medical Center Hematology and Oncology - Silverdale — Silverdale, Washington (17.3 mi) · Sponsor: NRG Oncology
See eligibility & contact on ClinicalTrials.gov (NCT06748222)

Inclisiran Versus Placebo for the Prevention of Major Adverse Cardiovascular and Limb Events in Patients Undergoing Percutaneous Coronary Intervention or Peripheral Endovascular Intervention

Percutaneous Coronary Intervention, Peripheral Endovascular Intervention Phase 4 Interventional 6,000 participants sought
MultiCare Institute for Research and Innovation — Tacoma, Washington (26.1 mi) · Sponsor: Duke University
See eligibility & contact on ClinicalTrials.gov (NCT06909565)

AVENTINE-1: Study of AVZO-1418 as a Single Agent and in Combination Therapy in Patients With Locally Advanced or Metastatic Solid Tumors (AVZO-1418-1001)

Solid Tumor Cancer, Locally Advanced Phase 1, Phase 2 Interventional 480 participants sought
Avenzo Therapeutics Recruiting Site — Seattle, Washington (1.1 mi) · Sponsor: Avenzo Therapeutics, Inc.
See eligibility & contact on ClinicalTrials.gov (NCT07038343)

Non-Invasive Diagnosis of Pediatric Pulmonary Invasive Mold Infections

Pulmonary Invasive Fungal Infections, Pulmonary Invasive Aspergillosis N/A Observational 400 participants sought
Seattle Children's Research Institute — Seattle, Washington (1.1 mi) · Sponsor: Arkansas Children's Hospital Research Institute
See eligibility & contact on ClinicalTrials.gov (NCT03827694)

Early Internal Fixation Versus NonOperative Care With Early Rehabilitation for LC1 Fragility Fractures of the Pelvis

Multiple Closed Pelvic Fractures With Disruption of Pelvic Ring, Fragility Fracture N/A Interventional 48 participants sought
University of Washington - Harborview Medical Center — Seattle, Washington (1.1 mi) · Sponsor: University of Southern California
See eligibility & contact on ClinicalTrials.gov (NCT06496867)

Sustained Oral Fiber Supplementation for Patients Undergoing Donor Stem Cell Transplantation for Hematological Malignancies

Hematopoietic and Lymphatic System Neoplasm N/A Interventional 40 participants sought
Fred Hutch/University of Washington Cancer Consortium — Seattle, Washington (1.1 mi) · Sponsor: Fred Hutchinson Cancer Center
See eligibility & contact on ClinicalTrials.gov (NCT04829136)

A Study of NX-2127 in Adults With Relapsed/Refractory B-cell Malignancies

Chronic Lymphocytic Leukemia (CLL), Small Lymphocytic Lymphoma (SLL) Phase 1 Interventional 248 participants sought
Swedish Cancer Institute — Seattle, Washington (1.1 mi) · Sponsor: Nurix Therapeutics, Inc.
See eligibility & contact on ClinicalTrials.gov (NCT04830137)

Evaluating Treatments for Suicidal Veterans With PTSD

Self-directed Violence, Post-traumatic Stress Disorder (PTSD) N/A Interventional 125 participants sought
VA Puget Sound Health Care System Seattle Division, Seattle, WA — Seattle, Washington (1.1 mi) · Sponsor: VA Office of Research and Development
See eligibility & contact on ClinicalTrials.gov (NCT05974631)
Actively enrolling

Studies you may be able to join near Seattle

These studies are recruiting through partner research networks. We may be paid a referral fee if you complete their screening form — this never changes what you pay (nothing) or the compensation the study offers you.

Research study for cirrhosis caused by MASH

Enrolling adults aged 18 to 80 with a physician diagnosis of liver cirrhosis caused by MASH (metabolic dysfunction-associated steatohepatitis). Not open to people with treated ascites, variceal bleeding, hepatitis B or C, or alcohol-related liver disease.

Screening is free and takes a few minutes. Eligibility and any compensation are confirmed by the study team, not by this site.

Check your eligibility

Research study for bladder problems after spinal cord injury

This study is enrolling US adults aged 18 to 75 living with chronic involuntary bladder leakage caused by a spinal cord injury, for research including investigational gene therapy approaches. The study team confirms eligibility and any compensation before enrollment.

Screening is free and takes a few minutes. Eligibility and any compensation are confirmed by the study team, not by this site.

Check your eligibility
Google-rated

Top-rated research centers in Seattle

Dedicated clinical research sites near you — with their real Google ratings, reviews and contact details

Seattle Clinical Research Center

★ 5.0
633 Yesler Wy, Seattle, WA 98104
(206) 522-3330
"I have been part of a vaccine trial here and the staff are so kind. I have a lot of medical anxiety due to some poor experiences. Typically, being in…"
— Kamla Anand Corder, 5★

DM Clinical Research — Seattle

★ 4.9
600 Broadway, Seattle, WA 98122
(425) 399-8006
"Very professional. Very nice they furnish u er ride when needed"
— Gretchen Schmidt, 4★

Clinical Research Center at Minor

★ 4.7
820 Minor Ave N, Seattle, WA 98109
(206) 667-7100
"Wonderful staff, supportive environment"
— Susan Mausshardt, 5★

Harborview Research and Training Building

★ 4.8
300 9th Ave, Seattle, WA 98104
(206) 744-3000
"Clean and the staff was very nice and professional and happy to help the doctors where amazing people Five star's ✨"
— Crystal Boles, 5★

Northwest Clinical Research Center

★ 3.9
1951 152nd Pl NE #200, Bellevue, WA 98007
(425) 453-0404
"Great staff and awesome research studies."
— Linda Martinez, 5★

Swedish Center for Research and Innovation

800 5th Ave 11th Fl, Seattle, WA 98104
(206) 215-3100

Seattle Institute for Biomedical and Clinical Research (SIBCR)

★ 2.3
1325 4th Ave Ste 1310, Seattle, WA 98101
(206) 204-9030
"These guys just changed our top tier insurance to one of the worst insurances, especially the dental. Goodbye boutique dentists. Hello brightnow dent…"
— Justin Cook, 1★

Fairview Research Center

★ 5.0
500 Fairview Ave N, Seattle, WA 98109
(848) 485-9840

Clinical Research Center

Seattle, WA 98195

Clinical trials in Seattle: what's recruiting

The Seattle area currently has 1,510 studies open to new participants, according to the ClinicalTrials.gov registry maintained by the U.S. National Institutes of Health. Among the studies closest to Seattle, the most active research areas are:

  • Cancer & Oncology12 studies
  • Brain & Mental Health4 studies
  • Immune & Skin2 studies
  • Diabetes & Metabolism1 studies
  • Heart & Vascular1 studies

Every listing shows the study phase, the recruiting site and its distance from Seattle, and links to the official registry page where eligibility criteria and study contacts are published. Compensation is set by each sponsor: industry surveys report typical payments of $75 to $4,500 per completed study, with short observational studies at the low end and multi-visit or overnight Phase 1 studies at the high end.

How to enroll in a paid study in Seattle

Start with a study whose condition matches your profile — or a healthy-volunteer study if you have no diagnosis. Contact the research site through the registry page, complete a short phone screen, then attend an in-person screening visit. If you qualify, the study team walks you through the informed consent document, which details every procedure, risk and payment before you commit. You can withdraw at any point, and enrollment is always free.

Seattle participants can also register with the dedicated research centers listed above — many maintain volunteer databases and call when a matching study opens — or sign up for our email alert below to hear when a new study starts recruiting within 30 miles of your ZIP code.

Frequently asked questions

How much do paid clinical trials in Seattle pay?
Compensation varies by study length, procedures and overnight stays. Industry surveys report typical payments from $75 to $4,500 per completed study, with simple observational studies at the low end and multi-week inpatient Phase 1 studies at the high end. Each listing's study team will confirm the exact amount before you enroll.
Do I need to be sick to join a clinical trial in Seattle?
No. Many studies recruit healthy volunteers, especially early-phase studies run at dedicated research centers. Others need participants diagnosed with a specific condition. Every trial lists its eligibility criteria — age range, condition, medications — and the study team screens you before enrollment.
How do I join a study in Seattle, WA?
Pick a study that matches your profile, contact the research site (or apply through the study links on this page), pass a phone pre-screen, then attend an in-person screening visit. If you qualify, you review and sign the informed consent and the study begins. The process typically takes 1-3 weeks.
Is compensation for clinical trials taxable?
In the U.S., clinical trial compensation is generally considered taxable income, and research sites may issue a 1099 form for payments above $600 in a year. Reimbursements for travel or meals are typically treated differently. Consult a tax professional for your situation.
Can I be in more than one clinical trial at a time?
Generally no — most studies exclude participants currently enrolled in another trial, and paid Phase 1 studies enforce a washout period (often 30 days or more) between studies. Frequent healthy volunteers in Seattle typically complete one or two studies per year.

Paid clinical trials near Seattle

Other metros within reach

Bellevue, WA1,520 Bremerton, WA1,481 Tacoma, WA1,464 Marysville, WA200 Olympia, WA234 Vancouver, WA1,021 Portland, OR1,021 Salem, OR116

By condition

Eligibility and exclusions, condition by condition

MASH (cirrhosis due to MASH) in Seattle Bladder Issues Due To Spinal Cord Injury in Seattle All conditions

More of WA

Bellevue1,520 Bremerton1,481 Tacoma1,464 Vancouver1,021 Spokane291 Olympia234 Marysville200 Kennewick55

New paid studies open every week

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