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Phase 1Data readout

VIR-5818 + Pembrolizumab

Cancer, HER2-expressing cancers, Metastatic breast cancer, Metastatic colorectal cancer

VIRVir Biotechnology
Expected catalystDecember 31, 2026Company guidance: Dec 31, 2026

Catalyst overview

Event details

Drug or asset
VIR-5818 + Pembrolizumab
Development stage
Phase 1
Event type
Data readout
Indication
Cancer, HER2-expressing cancers, Metastatic breast cancer, Metastatic colorectal cancer

Research summary

What is being tracked?

This catalyst tracks a Phase 1 data readout for VIR-5818 + Pembrolizumab in Cancer, HER2-expressing cancers, Metastatic breast cancer, Metastatic colorectal cancer. The expected timing is based on the latest available company guidance and may change.

Development notes

11/7/24- Share initial clinical data in Q1 2025. 1/8/25- Announced safety & efficacy data. Currently evaluating Q3W dosing. 11/05/25:- VIR-5818, a HER2-targeting PRO-XTEN dual-masked T-cell engager, continues in a Phase 1 dose escalation study with pembrolizumab across multiple tumor types, including metastatic colorectal cancer, with no new data or timing disclosed. 01/12/26:- VIR-5818 Phase 1 dose escalation response data in H2 2026; trials continue enrolling HER2-expressing solid tumors. 02/23/26:- Ph1 VIR-5818/pembrolizumab dose-escalation ongoing; response data expected in H2 2026. 05/06/26:- Phase 1 VIR-5818/pembrolizumab dose-escalation ongoing; response data still expected in H2 2026. 08/05/26:- Phase 1 VIR-5818 data timing reiterated for H2 2026.

Verification

Primary source

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

Open source

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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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