Condition
Obesity and Obesity-related Medical Conditions clinical trials and research
As of November 12, 2026, Find a Trial lists 21 Obesity and Obesity-related Medical Conditions clinical trials that are recruiting, at sites in 13 countries (most in United States (9), Canada (2), Spain (1)). By phase: Phase 4 (1). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 21Clinical trials
- 13Countries
Newest Obesity and Obesity-related Medical Conditions clinical trials
All recruiting trials (21)
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Cognitive changes after bariatric surgery using VR Neurotracker and Neuropsi testing
This study will test whether bariatric surgery combined with virtual‑reality Neurotracker sessions improves thinking and memory in adults with morbid obesity scheduled for surgery.
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Short-term effects of ultra-processed foods on metabolism
This project will test whether a short-term diet high in ultra-processed foods versus a nutrient- and energy-matched low-UPF diet changes appetite and how much adults with BMI 18.5–30 eat.
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Validating lab assays, IV catheter techniques, and devices for endocrine, cardiometabolic, and musculoskeletal conditions
This project will test whether laboratory assays, IV catheter methods, and equipment give consistent, reliable results in adults with or without obesity-related, metabolic, or musculoskeletal conditions.
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Improving team-based biopsychosocial training so clinics can deliver recommended obesity care
This project will test two training methods to help clinic teams (primary care clinicians, behavioral health staff, dietitians, and community health workers) deliver USPSTF-recommended obesity care to patients at Federally Qualified Health Centers.
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See if same day discharge after bariatric surgery is safe for select patients
This trial tests whether people having sleeve gastrectomy or gastric bypass can go home the same day or should stay at least one night, to see if ER visits within a week differ.
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Evaluating smoking cessation using e-cigarettes and nicotine therapy
This study is testing whether using e-cigarettes or nicotine replacement therapy can help people with obesity who smoke quit smoking and manage their weight better.
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Investigating the long-term health effects of obesity treatments on women
This study is trying to see how different obesity treatments affect women's health over time, including their nutrition, bones, muscles, and pregnancy outcomes.
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9-week dietitian-led program for adults with spinal cord injury to reduce body fat and insulin resistance
This program will try a 9-week dietitian-led version of the Diabetes Prevention Program to see if it lowers body fat and insulin resistance in adults with chronic spinal cord injury.
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Time-restricted eating and immune function in women with severe obesity
This trial tests whether following an 8-hour time-restricted eating schedule improves immune function in women aged 18–64 with severe obesity compared with a longer, 14-hour eating window, using a healthy lean group for reference.
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Effects of intermittent fasting and exercise on inflammation and metabolism in metabolic syndrome
This study is testing if intermittent fasting alone or with high-intensity exercise can reduce inflammation and improve metabolism in people with obesity and metabolic syndrome.
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Time-restricted feeding for immune health in people with severe obesity
This trial will test whether eating only during an 8-hour window improves immune function in adults with severe obesity who are preparing for bariatric surgery.
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Examining how aspirin metabolism relates to metabolic dysfunction in pregnant individuals at risk of preeclampsia
This study is trying to see how the way pregnant people process aspirin relates to their metabolic health and the health of their babies, especially for those at risk of preeclampsia.
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Endoscopic sleeve gastroplasty with fundal mucosal ablation for weight loss
This study is testing a new weight loss method that combines a procedure called endoscopic sleeve gastroplasty with a technique to reduce a hormone that makes you feel hungry, to see if it helps people lose more weight safely.
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Gut fermentation and metabolism in teens and young adults with obesity
This will test whether giving lactulose to teens and young adults with obesity and insulin resistance changes gut fermentation in ways that lower fat release from fat tissue and reduce appetite.
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Evaluating lung function in obese patients during bariatric surgery anesthesia
This study tests how different types of anesthesia affect lung function in obese patients having bariatric surgery to see which option might lead to better recovery.
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Gastric ablation therapy for weight management after stopping GLP-1 medications
This study tests if a procedure called gastric ablation can help adults keep off weight they lost with GLP-1 medications after they stop taking them.
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Using tirzepatide before bariatric surgery to improve outcomes
This study is testing if taking tirzepatide before weight loss surgery can help patients recover better and have fewer complications after the surgery.
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Effects of eating eggs on metabolism and liver health in obese individuals
This study tests whether eating three eggs a day can improve metabolism and liver health in people with obesity.
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Evaluating physical fitness and blood flow in diverse populations
This study is testing how physical fitness and blood flow work in healthy people and those with prehypertension or obesity to see if certain fitness tests can help us understand their heart health better.
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Wearable and AI-guided diet and exercise program for weight loss
This study will test whether adding a wearable device and AI apps to a personalized 6-month diet and exercise program helps overweight and obese adults (BMI ≥24 with obesity-related conditions) lose weight.
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Non-invasive tool to predict fatty liver disease
This study is testing a new, non-invasive tool to see if it can help identify fatty liver disease in healthy people and those already diagnosed with it.
Related topics
Quick answers
How many Obesity and Obesity-related Medical Conditions clinical trials are recruiting right now?
21, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 13 countries. The most sites are in United States (9 trials), Canada (2 trials), Spain (1 trial), Slovenia (1 trial), France (1 trial). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 4: 1. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.