AstraZeneca has revealed that its top executive in China, Leon Wang, has been detained by Chinese authorities, after confirming he was under investigation last week.
AstraZeneca's shares have fallen more than 8% on speculation about an anti-corruption probe in China, its second-largest market, wiping around $14 billion off its value.
The head of AstraZeneca's Chinese operations has been placed under investigation by the authorities in Beijing, although the reasons for the probe remain unclear.
Jörg Möller's sojourn as chief executive of BenevolentAI has come to an abrupt end after just nine months, as the company names co-founder Ken Mulvany as its executive chairman.
Sage Therapeutics has launched another round of layoffs as it deals with the fallout of abandoning a key pipeline drug for Alzheimer's and Parkinson's disease.