Clovis CEO: We can win against AstraZeneca By: CNBC.com News June 03, 2014 at 13:16 PM EDT Clovis shares fell to a 52-week low Tuesday on concerns its cancer drug won't be able to compete with rival AstraZeneca. Read More >> Related Stocks: Astrazeneca Plc ADR Citigroup Clovis Oncology Inc