RecruitingPhase 2NCT07458269

Efficacy and Safety of KAI-9531 Administered Once Weekly in Participants Living With Obesity Who Do Not Have Diabetes

A Phase 2b, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of KAI-9531 Administered Once Weekly in Participants Living With Obesity Who Do Not Have Diabetes


Sponsor

Kailera

Enrollment

250 participants

Start Date

Mar 4, 2026

Study Type

INTERVENTIONAL

Conditions

Summary

The primary objective of this study is to determine the effects of KAI-9531 administered by subcutaneous (SC) injection once weekly compared to placebo on percent change in body weight.


Eligibility

Min Age: 18 Years

Inclusion Criteria2

  • BMI ≥35 kilograms per meter squared (kg/m\^2).
  • History of at least 1 self-reported unsuccessful effort to lose weight with diet and exercise within the prior 6 months.

Exclusion Criteria10

  • Current diagnosis or history of diabetes mellitus, including type 1 diabetes mellitus (T1DM) or type 2 diabetes mellitus (T2DM), history of diabetic ketoacidosis, or hyperosmolar state/coma.
  • Started medications within 3 months prior to Screening that may cause significant weight gain, including, but not limited to, tricyclic antidepressants, atypical antipsychotics, and mood stabilizers.
  • Unstable weight defined as self-reported change in body weight exceeding 5% within 3 months prior to Screening.
  • Family or personal history of multiple endocrine neoplasia Type 2 or medullary thyroid cancer.
  • Uncontrolled hypertension or unstable cardiovascular disease.
  • History of chronic or acute pancreatitis.
  • Known clinically significant gastric-emptying abnormality or chronic treatment with medications that directly affect gastrointestinal motility.
  • History of suicide attempt.
  • History of significant active or unstable Major Depressive Disorder (MDD) or other severe psychiatric disorder within 2 years prior to Screening.
  • Received treatment with semaglutide, tirzepatide, glucagon-like peptide-1 receptor (GLP-1R) agonist, GLP-1R/glucose-dependent insulinotropic polypeptide receptor (GIPR), or glucagon receptor agonist within 3 months prior to Screening.

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Interventions

DRUGKAI-9531

SC Injection

DRUGPlacebo

SC Injection


Locations(33)

Kailera Clinical Site

Mesa, Arizona, United States

Kailera Clinical Site

Sun City West, Arizona, United States

Kailera Clinical Site

Lake Forest, California, United States

Kailera Clinical Site

Lomita, California, United States

Kailera Clinical Site

Long Beach, California, United States

Kailera Clinical Site

Montclair, California, United States

Kailera Clinical Site

Rolling Hills Estates, California, United States

Kailera Clinical Site

San Diego, California, United States

Kailera Clinical Site

Santa Ana, California, United States

Kailera Clinical Site

Van Nuys, California, United States

Kailera Clinical Site

DeLand, Florida, United States

Kailera Clinical Site

Orlando, Florida, United States

Kailera Clinical Site

Orlando, Florida, United States

Kailera Clinical Site

The Villages, Florida, United States

Kailera Clinical Site

Decatur, Georgia, United States

Kailera Clinical Site

Woodstock, Georgia, United States

Kailera Clinical Site

Morton, Illinois, United States

Kailera Clinical Site

Indianapolis, Indiana, United States

Kailera Clinical Site

Louisville, Kentucky, United States

Kailera Clinical Site

Rockville, Maryland, United States

Kailera Clinical Site

St Louis, Missouri, United States

Kailera Clinical Site

Lincoln, Nebraska, United States

Kailera Clinical Site

Omaha, Nebraska, United States

Kailera Clinical Site

East Syracuse, New York, United States

Kailera Clinical Site

Greensboro, North Carolina, United States

Kailera Clinical Site

Monroe, North Carolina, United States

Kailera Clinical Site

Raleigh, North Carolina, United States

Kailera Clinical Site

Greenville, South Carolina, United States

Kailera Clinical Site

Myrtle Beach, South Carolina, United States

Kailera Clinical Site

Knoxville, Tennessee, United States

Kailera Clinical Site

Memphis, Tennessee, United States

Kailera Clinical Site

San Antonio, Texas, United States

Kailera Clinical Site

Winchester, Virginia, United States

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