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Home/Stocks/ZBIO/Catalyst
PDUFAApproval decision

Obexelimab (CD19xFcyRIIb)

IgG4-related disease

ZBIOZenas BioPharma
Expected catalystMay 27, 2027

Catalyst overview

Event details

Drug or asset
Obexelimab (CD19xFcyRIIb)
Development stage
PDUFA
Event type
Approval decision
Indication
IgG4-related disease

Research summary

What is being tracked?

This catalyst tracks a PDUFA approval decision for Obexelimab (CD19xFcyRIIb) in IgG4-related disease. The expected timing is based on the latest available company guidance and may change.

Development notes

INDIGO trial. 11/12/24- Completed enrollment. 8/12/25- Topline data by YE 2025 and submit BLA in 2026. 11/12/25:- INDIGO Ph3 topline obexelimab IgG4-RD data expected around YE 2025. 01/05/26:- INDIGO Ph3 IgG4-RD trial met primary and key secondary endpoints; BLA planned Q2 2026, EMA MAA H2 2026. 03/16/26:- Reaffirmed INDIGO IgG4-RD BLA filing Q2 2026 and EMA MAA H2 2026; full data at future meeting. 05/13/26:- INDIGO Ph3 IgG4-RD results to be presented orally at EULAR 2026; BLA submission remains planned Q2 2026. 05/19/26:- INDIGO Ph3 IgG4-RD efficacy and safety to be presented at EULAR June 4, 2026. 05/28/26:- BLA submitted to FDA for IgG4-RD; INDIGO data presented at EULAR June 4, 2026. 06/02/26:- Additional INDIGO Ph3 IgG4-RD data published; BLA submitted May 2026; OLE continues. 08/13/26:- FDA accepted the INDIGO Ph3 IgG4-RD BLA. PDUFA action is expected May 27, 2027; EMA MAA is expected H2 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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