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ZB002

Phase 1

Healthy Volunteers | Small molecule | Immunology |Zenas BioPharma, Inc.|Last Updated: Sep 4, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLED
Total Trials1
Total Enrollment72

FDA Designations

No designations recorded

Clinical trial landscape

ZB002 · 1 trial · 2 indications

Phase 1 1
NCT05638854A Study to Evaluate Safety and Pharmacokinetics of ZB002 in Healthy Participants and Participants With Rheumatoid ArthritisHealthy Volunteers
COMPLETED72 Analytics
PHASE1COMPLETED
A Study to Evaluate Safety and Pharmacokinetics of ZB002 in Healthy Participants and Participants With Rheumatoid Arthritis
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Study Endpoints

Primary Endpoints

Part A: Safety and Tolerability in HVs
Day 1 through Day 120

To evaluate the safety and tolerability of ZB002 in HVs by assessing the number, severity and type of adverse events, including changes in laboratory safety test and electrocardiogram (ECG)

Part B: Safety and Tolerability of multiple doses of ZB002 in participants with RA
Day 1 through Day 176

To evaluate the safety and tolerability of ZB002 in participants with RA by assessing the number of participants with Treatment-emergent adverse events (TEAEs), serious TEAEs, and TEAE leading to discontinuation

Secondary Endpoints

Part A: Maximum observed serum concentration (Cmax)
Day 1 through Day 120
Part A: Time for Cmax (Tmax)
Day 1 through Day 120
Part A: Area under the concentration-time curve from time zero extrapolated to infinity (AUCinf)
Day 1 through Day 120
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Part A: SAD in Healthy VolunteersEXPERIMENTALHealthy volunteers will receive a single dose of ZB002 or placebo
Part B: MAD in RA ParticipantsEXPERIMENTALRA participants will receive ZB002 or placebo every 4 weeks (Q4W) × 3 administrations

Interventions

NameTypeDescription
ZB002DRUGZB002 will be administered subcutaneously as per schedule specified in the respective arm.
PlaceboDRUGPlacebo will be administered subcutaneously as per schedule specified in the respective arm.
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Eligibility Criteria

Age Range18 Years to 70 Years
SexALL
Healthy VolunteersYes
Study Sites2

Main Inclusion Criteria Part A SAD (HV): * Healthy male or female participants 18 to 55 years of age. * Body weight ≥ 50 kg for male participants and ≥ 45 kg for female participants; body mass index of 18 to 35 kg/m\^2 for both male and female participants. * Considered in good health as determine...

Countries:AustraliaNew Zealand
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Recent Changes (Last 90 Days)

HIGHSep 4, 2026NCT05638854Status: RECRUITING → COMPLETED
HIGHSep 4, 2026NCT05638854Status: RECRUITING → COMPLETED

Frequently asked questions about ZB002

What is ZB002 used for?

ZB002 is an investigational small molecule being developed by Zenas BioPharma for immunology applications. It is currently in Phase 1 clinical development, with studies evaluating its safety and pharmacokinetics in healthy volunteers and participants with rheumatoid arthritis.

What does ZB002 target?

The molecular target of ZB002 has not been disclosed. It is a small molecule immunology therapeutic being developed by Zenas BioPharma, currently in Phase 1 clinical trials.

Who makes ZB002?

ZB002 is being developed by Zenas BioPharma, Inc., a biopharmaceutical company. The company is publicly traded under the ticker symbol ZBIO.

What phase is ZB002 in?

ZB002 is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. A Phase 1 study has been completed, evaluating the drug in healthy volunteers and participants with rheumatoid arthritis.

What clinical trials is ZB002 in?

ZB002 has one completed Phase 1 clinical trial, NCT05638854, which evaluated the safety and pharmacokinetics of ZB002 in healthy participants and participants with rheumatoid arthritis. The study enrolled 72 participants and was conducted in Australia and New Zealand.

Is ZB002 the same as any other drug?

No alternative names for ZB002 have been disclosed. It is an investigational small molecule developed by Zenas BioPharma, currently in Phase 1 clinical development.