Key Takeaways A breast 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 trial included over 700 patients with inoperable or metastatic breast cancer.

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

The experimental drug Astrazeneca used against breast cancer has proven not to work as hoped. The stock, listed in London, is in sharp decline. The goal of 80 billion dollars in revenue by 2030 is fur

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,

London-listed AstraZeneca shares fell more than 5% on Tuesday after results from the company's lung cancer trials showed that its experimental precision drug did not significantly improve overall survival results for patients.

Biopharmaceutical stock AstraZeneca PLC (NASDAQ:AZN) is 1.3% lower before the open, after a bear note from Deutsche Bank. The analyst downgraded AZN to "sell" from "hold" and lowered its price target, pointing to the company's results from a lung cancer trial that showed its experimental precision drug did not improve overall survival.

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 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.