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

Paid Clinical Trials in Seattle, WA

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

1,517 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.

1,517studies recruiting
9+research centers nearby
6condition categories
Live from the NIH registry

Studies recruiting near Seattle right now

Top 25 of 1,517 recruiting studies, sorted by proximity — each links to its official registry page

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)

AMAZE 12: A Research Study Investigating How Well the Medicine NNC0487-0111 Helps People With Excess Body Weight Maintain Their Weight Loss

Obesity Phase 3 Interventional 600 participants sought
Rainier Clin Res Ctr Inc — Renton, Washington (10.8 mi) · Sponsor: Novo Nordisk A/S
See eligibility & contact on ClinicalTrials.gov (NCT07503210)

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)

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)

A Phase 1 Study of UB-VV111 With and Without Rapamycin in Relapsed/Refractory CD19+ B-cell Malignancies

Lymphoma, B-Cell, Lymphoma, Non-Hodgkin (NHL) Phase 1 Interventional 106 participants sought
Fred Hutch Cancer Center — Seattle, Washington (1.1 mi) · Sponsor: Umoja Biopharma
See eligibility & contact on ClinicalTrials.gov (NCT06528301)

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)

A Study to Evaluate DJI136, a DLL3-targeted CAR-T Therapy

Extensive-stage Small Cell Lung Cancer (ES-SCLC) Phase 1, Phase 2 Interventional 80 participants sought
Fred Hutchinson Cancer Center — Seattle, Washington (1.1 mi) · Sponsor: Novartis Pharmaceuticals
See eligibility & contact on ClinicalTrials.gov (NCT07564401)

Testing Different Dosing Schedules of the Anti-cancer Drug, Lutetium 177Lu PSMA RLT and Its Effect on Patients With Advanced Prostate Cancer, RECIPROCAL Trial

Metastatic Castration-Resistant Prostate Carcinoma, Metastatic Prostate Adenocarcinoma Phase 3 Interventional 1,524 participants sought
Swedish Medical Center-First Hill — Seattle, Washington (1.1 mi) · Sponsor: Alliance for Clinical Trials in Oncology
See eligibility & contact on ClinicalTrials.gov (NCT07200830)

BAFFR-targeting CAR T Cells for Patients With Relapsed or Refractory B-NHL

Relapsed or Refractory B-cell Non-Hodgkin's Lymphoma Phase 1 Interventional 36 participants sought
Providence Swedish Cancer Institute — Seattle, Washington (1.1 mi) · Sponsor: PeproMene Bio, Inc.
See eligibility & contact on ClinicalTrials.gov (NCT05370430)

Study of Momelotinib in Combination With Luspatercept in Participants With Transfusion Dependent Myelofibrosis

Primary Myelofibrosis, Myelofibrosis; Primary Myelofibrosis; Post-polycythemia Vera Myelofibrosis; Post-essential Thrombocythemia Myelofibrosis Phase 2 Interventional 68 participants sought
GSK Investigational Site — Seattle, Washington (1.1 mi) · Sponsor: GlaxoSmithKline
See eligibility & contact on ClinicalTrials.gov (NCT06517875)

Comparison of Intravesical Therapy and Surgery as Treatment Options for Bladder Cancer 2

Bladder Cancer, Recurrent Bladder Cancer N/A Observational 408 participants sought
Fred Hutch/University of Washington Cancer Consortium — Seattle, Washington (1.1 mi) · Sponsor: University of Washington
See eligibility & contact on ClinicalTrials.gov (NCT07225127)

A Research Study Investigating How Well the Medicine NNC0487-0111 Helps People With Excess Body Weight and Knee Osteoarthritis Lose Weight and Reduce Pain

Obesity, Knee Osteoarthritis (OA) Phase 3 Interventional 400 participants sought
Northwest Clinical Research Center — Bellevue, Washington (5.8 mi) · Sponsor: Novo Nordisk A/S
See eligibility & contact on ClinicalTrials.gov (NCT07481630)

A Study of Sigvotatug Vedotin in Advanced Solid Tumors

Carcinoma, Non-Small Cell Lung, Squamous Cell Carcinoma of Head and Neck Phase 1 Interventional 1,006 participants sought
Swedish Cancer Institute — Seattle, Washington (1.1 mi) · Sponsor: Seagen, a wholly owned subsidiary of Pfizer
See eligibility & contact on ClinicalTrials.gov (NCT04389632)

ENdoluminal LIGHT ActivatED Treatment of Upper Tract Urothelial Cancer (ENLIGHTED) Study

Transitional Cell Cancer of Renal Pelvis and Ureter Phase 3 Interventional 100 participants sought
University of Washington — Seattle, Washington (1.1 mi) · Sponsor: Steba Biotech S.A.
See eligibility & contact on ClinicalTrials.gov (NCT04620239)

Maintenance Obinutuzumab in Treating Patients With Central Nervous System Lymphoma Who Have Achieved a Complete or Partial Response

Primary Central Nervous System Lymphoma Phase 2 Interventional 28 participants sought
Ivy Center for Advanced Brain Tumor Treatment; Swedish Neuroscience Institute — Seattle, Washington (1.1 mi) · Sponsor: Providence Health & Services
See eligibility & contact on ClinicalTrials.gov (NCT06175000)

Acoramidis Transthyretin Amyloidosis Prevention Trial in the Young (ACT-EARLY) Study in Asymptomatic Carriers of a Pathogenic TTR Variant

Amyloidosis, Amyloid Cardiomyopathy Phase 3 Interventional 587 participants sought
University of Washington Medical Center — Seattle, Washington (1.1 mi) · Sponsor: Eidos Therapeutics, a BridgeBio company
See eligibility & contact on ClinicalTrials.gov (NCT06563895)

XVIVO Heart Box (XHB) With Supplemented XVIVO Heart Solution (SXHS) Continued Access Protocol (CAP)

Heart Transplant, Heart Failure N/A Interventional 60 participants sought
University of Washington Medical Center — Seattle, Washington (1.1 mi) · Sponsor: XVIVO Perfusion
See eligibility & contact on ClinicalTrials.gov (NCT06895070)

Multicenter HomeVENT: Home Values and Experiences Navigation Track

Pediatric ALL, Respiratory Insufficiency N/A Interventional 600 participants sought
Seattle Childrens Hospital — Seattle, Washington (1.1 mi) · Sponsor: Johns Hopkins University
See eligibility & contact on ClinicalTrials.gov (NCT06102330)

Benchmark Evidence Led by Latin America: Trial of Intracranial Pressure - Pediatrics

Severe Traumatic Brain Injury N/A Interventional 428 participants sought
University of Washington, Harborview Medical Center — Seattle, Washington (1.1 mi) · Sponsor: University of Washington
See eligibility & contact on ClinicalTrials.gov (NCT05566431)

A Study Comparing AZD0120, a Dual-targeted CAR-T Against B-cell Maturation Antigen (BCMA) and CD19, Versus Standard Regimens in Participants With Relapsed Refractory Multiple Myeloma (DURGA-4)

Relapsed Refractory Multiple Myeloma Phase 3 Interventional 508 participants sought
Research Site — Seattle, Washington (1.1 mi) · Sponsor: AstraZeneca
See eligibility & contact on ClinicalTrials.gov (NCT07391657)
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 1,517 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 & Oncology14 studies
  • Diabetes & Metabolism3 studies
  • Liver & Kidney2 studies
  • Heart & Vascular2 studies
  • Immune & Skin1 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, WA1,528 Bremerton, WA1,488 Tacoma, WA1,467 Marysville, WA204 Olympia, WA230 Vancouver, WA1,018 Portland, OR1,018 Salem, OR113

More of WA

Bellevue1,528 Bremerton1,488 Tacoma1,467 Vancouver1,018 Spokane293 Olympia230 Marysville204 Kennewick57

New paid studies open every week

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