8 Obesity Clinical Trials in Seattle, WA (2026)

Q: How do I join a clinical trial in Seattle?

Browse available studies, click one that interests you, and complete the free eligibility form. A study coordinator at the Seattle research site will contact you.

Recruiting Obesity Studies in Seattle

NCT07627074Recruiting

Weight Loss in Adults Using Semaglutide (Real-world Study)

The purpose of the study is to assess the weight loss in participants treated with commercially available semaglutide according to routine clinical practice at the discretion of the treating physician...

Seattle, WA35,000 participantsNovo Nordisk A/S

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NCT06619041Recruiting

HealthyTogether: RCT of a Dyadic Weight Management Intervention

Four in five Veterans have overweight or obesity. However, few eligible Veterans achieve meaningful weight loss in VA's national MOVE! Weight Management Program. Family and friends strongly influence ...

Seattle, WANA320 participantsVA Office of Research and Development

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NCT06861868Recruiting

Brain and Behavior Influences on Obesity Development From Infancy Through Childhood

The investigators project, RESONATE, aims to investigate why some children develop obesity. To do this it uses data on eating and eating-related behaviors, genetic and environmental factors, and brain...

Seattle, WANA210 participantsJohns Hopkins University

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NCT05818384Recruiting

Wakaya: Rising Up for Choctaw Youth Health

Investigators will conduct a two-group randomized waitlist-control trial to assess the efficacy of the Wakaya: Rising Up for Choctaw Youth Health program on improving physical activity, reducing seden...

Seattle, WANA176 participantsUniversity of Washington

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NCT06174389Recruiting

ADAPT Study: Assessing Diet, Appetite and Physiology Throughout Weight Loss Study)

Behavioral weight loss programs for obesity can result in weight loss and health benefits. However, behavioral weight loss often stops despite efforts to continue losing weight, this can be called an ...

Seattle, WANA90 participantsUniversity of Washington

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NCT06760546Recruiting

A Trial of Setmelanotide in Patients With Congenital Hypothalamic Obesity (Sub-study of NCT05774756)

This is a sub-study of Study RM-493-040 (NCT05774756). The goal of this sub-study is to learn how well Setmelanotide works to improve weight reduction, hunger, and quality of life in patients 4 years...

Seattle, WAPHASE339 participantsRhythm Pharmaceuticals, Inc.

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NCT06901245Recruiting

Tirzepatide in PWS, HO and GNSO

This research study is comparing the effectiveness of a weight loss medication called Tirzepatide in young adults with Prader-Willi Syndrome and/or hypothalamic obesity, as compared to young adults wi...

Seattle, WAPHASE436 participantsGrace Kim

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NCT06299891Recruiting

Efficacy and Safety of Phentermine/Topiramate in Youth With Hypothalamic Obesity

Hypothalamic obesity (HO) refers to the substantial weight gain that often complicates hypothalamic brain tumors. Children with this treatment-recalcitrant form of obesity have excess rates of metabol...

Seattle, WAPHASE224 participantsSeattle Children's Hospital

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About Obesity Clinical Trials in Seattle

Obesity is a complex chronic disease involving an excessive amount of body fat that increases the risk of other diseases and health problems. It affects over 650 million adults worldwide. Treatment approaches include lifestyle modifications, medications (GLP-1 agonists), and bariatric surgery.

There are currently 8 obesity clinical trials recruiting participants in Seattle, WA. These studies are seeking a combined 35,895 participants. Research is being sponsored by Novo Nordisk A/S, VA Office of Research and Development, Johns Hopkins University and 4 other organizations. Clinical trial participation is free and participants receive study-related medical care at no cost.

Obesity Clinical Trials in Seattle — FAQ

Are there obesity clinical trials in Seattle?

Yes, there are 8 obesity clinical trials currently recruiting in Seattle, WA. Browse the studies on this page to find one that fits.

How do I join a clinical trial in Seattle?

Browse the studies listed above, click one that interests you, and complete the free eligibility form. A study coordinator at the Seattle research site will contact you about next steps.

Are clinical trials in Seattle free?

Yes, clinical trial participation is always free. Study-related treatment, medical tests, and doctor visits are provided at no cost. Many Seattle studies also compensate for your time and travel.

What obesity treatments are being tested?

The 8 active trials in Seattle are testing new therapies including novel drugs, biologics, and treatment approaches for obesity.

Data updated August 29, 2026 from ClinicalTrials.gov