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Phase 1aData readout

DAY301 (formerly MTX-13)

Solid tumor/s

DAWNDay One Pharmaceuticals
Expected catalystDecember 31, 2026Company guidance: Dec 31, 2026

Catalyst overview

Event details

Drug or asset
DAY301 (formerly MTX-13)
Development stage
Phase 1a
Event type
Data readout
Indication
Solid tumor/s

Research summary

What is being tracked?

This catalyst tracks a Phase 1a data readout for DAY301 (formerly MTX-13) in Solid tumor/s. The expected timing is based on the latest available company guidance and may change.

Development notes

04/2024 - FDA cleared IND. 1/13/25- First dose cohort cleared. 8/5/25- Actively enrolling participants. 11/04/25:- Dose escalation in the Ph1a trial of DAY301, a PTK7-targeted ADC, is actively advancing. 01/11/26:- Initial data from the Phase 1a DAY301 trial in H2 2026. 02/24/26:- Phase 1a DAY301 dose escalation ongoing; initial clinical data and program update planned for H2 2026.

Verification

Primary source

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

Open source

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Company

Day One Pharmaceuticals

DAWN · NasdaqGS
Industry
Biotechnology
Pipeline assets
5
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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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