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AB102

Phase 1

Undisclosed | Small molecule | Other |Arcus Biosciences, Inc.|Trials Updated: Aug 25, 2026

AB102 development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Jun 2026

AB102 target and mechanism

Molecular targetMRGPRX2
Target classReceptor
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment130

FDA Designations

No designations recorded

AB102 clinical trials

AB102 · 1 trial · 1 indication

Phase 1 1
NCT07662057A Study to Investigate the Safety, Tolerability, and PK of AB102 in Healthy ParticipantsHealthy Volunteers
RECRUITING130 Analytics
PHASE1RECRUITING
A Study to Investigate the Safety, Tolerability, and PK of AB102 in Healthy Participants
Healthy VolunteersUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of participants experiencing Adverse Events (AEs)
Up to 49 days
Maximum observed plasma concentration (Cmax) for SAD and MAD Parts
Up to 28 days
Time to attain maximum observed plasma concentration (tmax) for SAD and MAD Parts
Up to 28 days
Terminal elimination half-life (t1/2) for SAD Part
Up to 28 days
Area under the plasma concentration-time curve from time 0 to last sample (AUClast) for SAD and MAD Parts
Up to 28 days
Area under the plasma concentration-time curve from time 0 to 24 hours (AUC0-24h) for SAD Part
Up to 28 days
Area under the plasma concentration-time curve from time 0 to infinity (AUCinf) for SAD Part
Up to 28 days
Area under the plasma concentration-time curve over a dosing interval (AUC0-tau) for MAD Part
Up to 28 days
Accumulation ratio (Racc(Cmax))for MAD Part
Up to 28 days
Accumulation ratio(Racc(AUCtau)) for MAD Part
Up to 28 days
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelSEQUENTIAL
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
SAD PartEXPERIMENTALEscalating single oral doses of AB102 will be given to participants
SAD Part PlaceboEXPERIMENTALEscalating single oral doses of placebo will be given to participants
MAD PartPLACEBO_COMPARATOREscalating multiple oral doses of AB102 will be given to participants
MAD Part PlaceboPLACEBO_COMPARATOREscalating multiple oral doses of placebo will be given to participants

Interventions

NameTypeDescription
AB102DRUGAdministered orally as specified in the treatment arm
PlaceboOTHERAdministered orally as specified in the treatment arm
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Eligibility Criteria

Age Range18 Years to 55 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Understands the study procedures in the Informed Consent Form and is willing and able to comply with the protocol. * BMI: 19.0 to 30.0 kg/m2, inclusive, at screening. * All prescribed medication must have been stopped at least 30 days prior to admission to the clinical site. A...

Countries:Netherlands
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Recent Changes (Last 90 Days)

LOWAug 25, 2026NCT07662057Status: NOT_YET_RECRUITING → RECRUITING
LOWAug 25, 2026NCT07662057Status: NOT_YET_RECRUITING → RECRUITING

Frequently asked questions about AB102

What is AB102?

AB102 is an investigational small molecule developed by Arcus Biosciences, Inc. It is being studied in a Phase 1 clinical trial in healthy volunteers. AB102 is designed to act on MRGPRX2, a receptor target. The program is in early clinical development and has not been approved for any use.

What does AB102 target?

AB102 targets MRGPRX2, a receptor. MRGPRX2 is the molecular target of this small molecule. By binding this receptor, AB102 is designed to modulate MRGPRX2-mediated signaling. The target class is a receptor, and the compound is being evaluated in a Phase 1 study in healthy participants.

Who makes AB102?

AB102 is being developed by Arcus Biosciences, Inc., which trades on the Nasdaq under the ticker RCUS. Arcus Biosciences is the sponsor of the Phase 1 clinical trial evaluating AB102. The company is a clinical-stage biopharmaceutical company, and AB102 is one of its investigational small molecule programs.

What phase is AB102 in?

AB102 is in Phase 1 clinical development. It is investigational and has not been approved by the FDA or any other regulatory agency. The Phase 1 program consists of one recruiting trial with a planned enrollment of 130 participants. No Phase 1 trials of AB102 have been completed to date.

What clinical trials is AB102 in?

AB102 is being evaluated in one clinical trial, NCT07662057, titled A Study to Investigate the Safety, Tolerability, and PK of AB102 in Healthy Participants. The trial is a Phase 1, randomized, double-blind, placebo-controlled study recruiting 130 healthy volunteers in the Netherlands. Participants must be 18 years or older.