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Phase 2Data readout

Obexelimab (CD19xFcyRIIb)

Systemic lupus erythematosus

ZBIOZenas BioPharma
Expected catalystDecember 31, 2026Company guidance: Dec 31, 2026

Catalyst overview

Event details

Drug or asset
Obexelimab (CD19xFcyRIIb)
Development stage
Phase 2
Event type
Data readout
Indication
Systemic lupus erythematosus
Research signalsHigh management interest

Research summary

What is being tracked?

This catalyst tracks a Phase 2 data readout for Obexelimab (CD19xFcyRIIb) in Systemic lupus erythematosus. The expected timing is based on the latest available company guidance and may change.

Development notes

SunStone trial. 11/12/24- Trial initiated. 5/15/25- Enrollment completion by YE 2025. 8/12/25- Topline data in mid-2026. 11/12/25:- SunStone Ph2 enrollment completion YE 2025; topline data expected Mid-2026. 01/05/26:- SunStone Ph2 SLE topline and biomarker data now expected in Q4 2026. 03/16/26:- Reiterated SunStone Ph2 SLE topline and biomarker data expected in Q4 2026. 05/13/26:- SunStone Ph2 SLE enrollment complete; topline and biomarker results expected in Q4 2026. 08/13/26:- SunStone Ph2 SLE topline and biomarker results are expected in Q4 2026.

Verification

Primary source

Confirm timing and program details against the company announcement or filing.

Open source

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Company

Zenas BioPharma

ZBIO · NasdaqGS
Industry
Biotechnology
Pipeline assets
11
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Updated Aug 23, 2026. Dates can change; this is not investment advice.

Disclaimer: Biotech Stock Intel is an independent research platform. Information is provided for informational purposes only and is not investment or medical advice. Always verify catalyst dates against primary sources and conduct your own research.
Biotech Stock Intel© 2026 Biotech Stock Intel
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