(Reuters) - AstraZeneca will pay $18 million to biotechnology firm Immunai Inc to use the New York-based firm's AI model of the immune system to make certain cancer drug trials more efficient, the latter said on Thursday.

A cancer drug being developed by AstraZeneca failed to "achieve statistical significance" in helping patients live longer than with chemotherapy in a phase 3 trial, the drugmaker said Monday.

AstraZeneca released results from the TROPION-Breast01 Phase 3 trial of datopotamab deruxtecan, showing no statistically significant improvement in overall survival. The trial met its progression-free survival endpoint,

AstraZeneca said on Monday its experimental precision drug developed with Japan's Daiichi Sankyo did not significantly improve overall survival for patients with a type of breast cancer in a late-stage trial.

A new AstraZeneca drug has failed to extend significantly the lives of breast cancer patients in a blow to the company’s ambitions to hit an $80bn revenue target by 2030. Datopotamab deruxtecan (Dato-DXd) is a new form of cancer treatment,

AstraZeneca stock slumped Monday after its Daiichi Sankyo-partnered drug missed its mark in a study of patients with breast cancer.

AstraZeneca said on Monday its experimental precision drug developed with Daiichi Sankyo did not significantly improve overall survival for patients with a type of breast cancer in a late-stage trial.