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Phase 2Data readout

Azenosertib (ZN-c3) (oral inhibitor of WEE1) mono

Cyclin E1+ platinum-resistant ovarian cancer (PROC)

ZNTLZentalis Pharmaceuticals
Expected catalystJune 30, 2027Company guidance: Jun 30, 2027

Catalyst overview

Event details

Drug or asset
Azenosertib (ZN-c3) (oral inhibitor of WEE1) mono
Development stage
Phase 2
Event type
Data readout
Indication
Cyclin E1+ platinum-resistant ovarian cancer (PROC)
Research signalsBig moverHigh management interest

Research summary

What is being tracked?

This catalyst tracks a Phase 2 data readout for Azenosertib (ZN-c3) (oral inhibitor of WEE1) mono in Cyclin E1+ platinum-resistant ovarian cancer (PROC). The expected timing is based on the latest available company guidance and may change.

Development notes

DENALI (ZN-c3-005): 1/29/25- Reported topline data from Part 1b. 3/15/25- Presented updated data at (SGO) 2025. 4/28/25- First patient dosed in Part 2 with topline data by YE 2026. 11/10/25:- Enrollment in DENALI Part 2a is ongoing, with two intermittent dosing regimens; Part 2b will enroll approximately 70 patients at a single selected dose, and topline Part 2 data are expected by YE 2026 with the potential to support an accelerated approval, subject to FDA review. 01/06/26:- Completed DENALI Part 2a enrollment; dose confirmation and ASPENOVA Ph3 initiation expected H1 2026; topline Part 2 data YE 2026. 03/26/26:- FDA-aligned ASPENOVA Ph3 design; DENALI dose confirmation and topline Part 2 data remain expected H1 and YE 2026. 04/09/26:- DENALI chose 400mg QD 5:2. Part 2c and ASPENOVA start Q2 2026; topline YE 2026. 04/21/26:- FDA Fast Track for Cyclin E1+ PROC; CD validation ongoing in DENALI/ASPENOVA. 05/05/26:- ASPENOVA Ph3 first patient dosed; trial enrolling. DENALI Part 2 topline readout expected Year-End 2026. 05/12/26:- DENALI Part 2 selected 400mg QD 5:2 pivotal dose; interim analysis showed better responses and safety; topline YE 2026. 07/17/26:- ESMO 2026 will present DENALI Part 1b overall survival Oct 23, 2026; ASPENOVA trial-in-progress Oct 26. 08/06/26:- DENALI FDA aligned; ESMO OS update upcoming; Part 2 topline now H1 2027.

Verification

Primary source

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

Open source

Company

Zentalis Pharmaceuticals

ZNTL · NasdaqGM
Industry
Biotechnology
Pipeline assets
12
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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
AboutMethodologyTermsPrivacy