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Obesity clinical trials in Los Angeles, CA

23 studies for Obesity are looking for participants at sites in and around Los Angeles (within about 30 miles). Open a study to see who can join and how to contact the study team.

Recruiting for a study here? Feature it at the top of this page — $99 for 30 days →

Safety and Efficacy of ABBV-295 in Adults With Obesity or Overweight With Weight-Related Comorbidities

RecruitingPhase 2
  • Los Angeles Institute for Metabolic Research /ID# 282059, Los Angeles
Ages 18 to 75 · All sexes · Updated Oct 2, 2026 · NCT07752979

Comparing the Efficacy and Safety of the EndoZip System and Apollo ESG in Obese Patients

Recruiting
  • Cedars Sinai Medical Center, Los Angeles
Ages 21 to 65 · All sexes · Updated Oct 1, 2026 · NCT07090005

A Platform Trial for Pediatric Participants With Obesity or Overweight (LY900040)

RecruitingPhase 3
  • Childrens Hospital of Los Angeles, Los Angeles
  • UCLA Mattel Children's Hospital, Los Angeles
Ages 6 to 17 · All sexes · Updated Sep 24, 2026 · NCT06672549

A Study of Eloralintide (LY3841136) in Participants With Obesity or Overweight, and Type 2 Diabetes

RecruitingPhase 3
  • Inglewood Clinical, Los Angeles
Ages 18 and older · All sexes · Updated Sep 22, 2026 · NCT07282600

A Study of Once-daily Oral ASC30 to Evaluate the Efficacy and Safety in Adult Participants With Obesity or Overweight With Weight-Related Comorbidities

RecruitingPhase 3
  • AURORA-1 Clinical Site, Los Angeles
Ages 18 and older · All sexes · Updated Sep 16, 2026 · NCT07743463

A Study of Once-daily Oral ASC30 to Evaluate the Efficacy and Safety in Adult Participants With Obesity or Overweight With Type 2 Diabetes

RecruitingPhase 3
  • AURORA-2 Clinical Site, Los Angeles
Ages 18 and older · All sexes · Updated Sep 16, 2026 · NCT07743450

Research Study on How Well Oral Semaglutide Works for Weight Loss in Adults With Excess Body Weight

RecruitingPhase 3
  • Los Angeles Institute for Metabolic Research, Los Angeles
Ages 18 and older · All sexes · Updated Sep 9, 2026 · NCT07770841

Effects of Dietary Supplements on Muscle Mass and Function While Using GLP-1 Medication

RecruitingHealthy volunteers welcome
  • UCLA Center for Human Nutrition, Los Angeles
Ages 18 and older · All sexes · Updated Sep 8, 2026 · NCT07806838

Caloric Restriction and Activity to Reduce Chemoresistance in B-ALL

RecruitingPhase 2
  • Children's Hospital Los Angeles, Los Angeles
Ages 7 to 25 · All sexes · Updated Aug 19, 2026 · NCT05082519

A Research Study to Look at How Well NNC0487-0111 Works Compared to Placebo in People With Heart Failure and Obesity

RecruitingPhase 3
  • VAGrtrLosAngelesHlthcareSystem, Los Angeles
Ages 18 and older · All sexes · Updated Aug 18, 2026 · NCT07567001

A Study to See if an iPhone Weight Management App Can Help Promote Weight Loss in Adolescents and Young Adults After a Stem Cell Transplant

RecruitingHealthy volunteers welcome
  • UCLA / Jonsson Comprehensive Cancer Center, Los Angeles
Ages 13 to 30 · All sexes · Updated May 11, 2026 · NCT04453072

A Study to Evaluate Tradipitant on Treating Nausea and Vomiting Induced by GLP-1R Agonist Use

RecruitingPhase 3Healthy volunteers welcome
  • Vanda Investigational Site, Los Angeles
Ages 18 to 65 · All sexes · Updated Apr 20, 2026 · NCT07446439

Probiotic Intervention Study

RecruitingHealthy volunteers welcome
  • University of California, Los Angeles
Ages 18 to 50 · All sexes · Updated Mar 27, 2026 · NCT06030362

Single Nuclei RNA-seq to Map Adipose Cellular Populations and Senescent Cells in Older Subjects

RecruitingPhase 2/3Healthy volunteers welcome
  • Cedars Sinai Medical Center, Los Angeles
Ages 18 and older · All sexes · Updated Mar 18, 2026 · NCT05653258

Avoid and Resist Strategies for Weight Management

RecruitingHealthy volunteers welcome
  • Cedars-Sinai Medical Center, Los Angeles
Ages 14 and older · All sexes · Updated Feb 17, 2026 · NCT05143931

FEAST Perinatal Support Program Intervention

Recruiting
  • University of Southern California, Los Angeles
Ages 18 and older · Women · Updated Feb 2, 2026 · NCT06715787

Behavioral Weight Loss Intervention Utilizing Mobile Health Technology in Hematopoietic Stem Cell Transplant Patients

RecruitingHealthy volunteers welcome
  • UCLA Mattel Children's Hospital, Los Angeles
Ages 13 to 30 · All sexes · Updated Jan 28, 2026 · NCT04997473

BrainWeighve App Feasibility Study

RecruitingHealthy volunteers welcome
  • UCLA Marion Davies Children's Center, Los Angeles
Ages 14 to 21 · All sexes · Updated Dec 22, 2025 · NCT05530538

eMOTION: Examining Implicit Attitudes in Physical Activity Engagement

RecruitingObservational studyHealthy volunteers welcome
  • Univeristy of Southern California, Los Angeles
Ages 18 and older · All sexes · Updated Nov 3, 2025 · NCT07044570

Tirzepatide for Alcohol Use Disorder

RecruitingPhase 2
  • Keck School of Medicine, University of Southern California, Los Angeles
Ages 21 to 65 · All sexes · Updated Oct 14, 2025 · NCT06994338

eMOTION: Examining Affective Mechanisms in Physical Activity Engagement

RecruitingHealthy volunteers welcome
  • University of Southern California, Los Angeles
Ages 18 and older · All sexes · Updated Jun 27, 2025 · NCT06570642

Brown Adipose Tissue Activity in Response to Semaglutide Administered to Obese Subjects.

RecruitingObservational studyHealthy volunteers welcome
  • UCLA Health, Los Angeles
Ages 18 and older · All sexes · Updated May 11, 2025 · NCT05419726

About Obesity

Read about the causes of obesity and find out what you can do to decrease your risk of its associated health issues.

More about Obesity on MedlinePlus

Obesity trials in other cities

Other studies in Los Angeles

From ClinicalTrials.gov, data retrieved Oct 5, 2026. Each study sets its own eligibility; the study team decides who can join.