AstraZeneca and Daiichi add Datroway to Summit cancer collab

2 October 2026

UK pharma major AstraZeneca (LSE: AZN) and Japanese drugmaker Daiichi Sankyo (TYO: 4568) plan to test Datroway (datopotamab deruxtecan) with ivonescimab in a Phase III trial in first-line triple-negative breast cancer, under a new collaboration with US biotech Summit Therapeutics (Nasdaq: SMMT).

The agreement covers studies across multiple tumor types, including lung and breast cancers. It expands the companies’ work on combinations pairing antibody-drug conjugates (ADCs), which deliver cancer-killing drugs to targeted cells, with immunotherapy.

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