Recent Updates
Recently added Catalysts

KAI-9531

Phase 2

Obesity | Small molecule | Metabolic |Kailera Therapeutics, Inc.|Last Updated: Apr 20, 2026

Target and mechanism

Molecular targetGLP-1/GIP receptor
Target classReceptor
ModalitySmall molecule

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment250

FDA Designations

No designations recorded

Clinical trial landscape

KAI-9531 · 2 trials · 2 indications

Phase 2 1Phase 1 1
NCT07458269Efficacy and Safety of KAI-9531 Administered Once Weekly in Participants Living With Obesity Who Do Not Have DiabetesObesity
RECRUITING250 Analytics
PHASE2RECRUITING
Efficacy and Safety of KAI-9531 Administered Once Weekly in Participants Living With Obesity Who Do Not Have Diabetes
ObesityUnlock trial analytics

Study Endpoints

Primary Endpoints

Percent Change From Baseline in Body Weight at Week 48
Baseline, Week 48
Maximum Observed Concentration (Cmax) of KAI-9531
Treatment Period 1, 2 and 3: Pre-dose and up to 672 hours post-dose
Area Under the Concentration-time Curve From 0 to Time of Last Quantifiable Concentration (AUC0-t) of KAI-9531
Treatment Period 1, 2 and 3: Pre-dose and up to 672 hours post-dose
Area Under the Concentration-time Curve From 0 to Infinity (AUC0-inf) of KAI-9531
Treatment Period 1, 2 and 3: Pre-dose and up to 672 hours post-dose

Secondary Endpoints

Percent of Participants with ≥5%, ≥10%, ≥15%, ≥20% and ≥25% Reduction From Baseline in Body Weight
Baseline, Week 48
Change From Baseline in Waist Circumference
Baseline, Week 48
Change From Baseline in Absolute Body Weight
Baseline, Week 48
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
KAI-9531: Dose 1EXPERIMENTALParticipants will receive Dose 1 of KAI-9531 once weekly.
KAI-9531: Dose 2EXPERIMENTALParticipants will receive Dose 2 of KAI-9531 once weekly.
KAI-9531: Dose 3EXPERIMENTALParticipants will receive Dose 3 of KAI-9531 once weekly.
KAI-9531: Dose 4EXPERIMENTALParticipants will receive Dose 4 of KAI-9531 once weekly.
PlaceboPLACEBO_COMPARATORParticipants will receive placebo matched to KAI-9531 once weekly.
KAI-9531: Abdomen Injection SiteEXPERIMENTALParticipants will receive KAI-9531 as a SC injection into the abdomen on Day 1 of either Treatment Period 1, 2 or 3.
KAI-9531: Thigh Injection SiteEXPERIMENTALParticipants will receive KAI-9531 as a SC injection into the thigh on Day 1 of either Treatment Period 1, 2 or 3.
KAI-9531: Upper Arm Injection SiteEXPERIMENTALParticipants will receive KAI-9531 as a SC injection into the upper arm on Day 1 of either Treatment Period 1, 2 or 3.

Interventions

NameTypeDescription
KAI-9531DRUGSC Injection
PlaceboDRUGSC Injection
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites33

Key Inclusion Criteria: * 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. Key Exclusion Criteria: * Current diagnosis or history of diabetes mellitus, including type 1 diabete...

Countries:United States
Unlock Eligibility Criteria

Frequently asked questions about KAI-9531

What is KAI-9531 used for?

KAI-9531 is an investigational small molecule being developed for the treatment of obesity. It is also being studied in healthy volunteers to assess its bioavailability. The drug is administered once weekly and is currently in clinical development, with studies enrolling participants living with obesity who do not have diabetes.

What does KAI-9531 target?

KAI-9531 targets the GLP-1/GIP receptor. By acting on these receptors, which are involved in glucose metabolism and appetite regulation, the drug is being investigated as a potential treatment for obesity. This mechanism is being evaluated in clinical trials to determine its efficacy and safety.

Who makes KAI-9531?

KAI-9531 is being developed by Kailera Therapeutics, Inc., a biopharmaceutical company. The company is conducting clinical trials to evaluate the drug's safety and efficacy in treating obesity. Kailera Therapeutics is publicly traded under the ticker symbol KLRA.

What phase is KAI-9531 in?

KAI-9531 is in Phase 2 clinical development. A Phase 1 study has been completed, and a Phase 2 trial is currently recruiting participants. The drug is investigational and has not been approved by regulatory authorities. It is being studied for its potential use in treating obesity.

What clinical trials is KAI-9531 in?

KAI-9531 has two clinical trials. NCT07044401 is a completed Phase 1 study in healthy volunteers, evaluating the effect of injection site on bioavailability. NCT07458269 is a recruiting Phase 2 trial in participants with obesity who do not have diabetes, assessing efficacy and safety of once-weekly dosing.

Is KAI-9531 the same as other obesity drugs?

KAI-9531 is a distinct investigational small molecule targeting the GLP-1/GIP receptor. It is not the same as other marketed obesity drugs, as it is still in clinical development. Its unique profile is being studied to determine its potential role in obesity treatment.