Pfizer has left its partner Pain Therapeutics shocked by an unexpected decision to withdraw from a deal between the two companies relating to opioid agonist Remoxy. Investors too were left reeling, sending shares of both Pain Therapeutics and Durect, the developer of the technology behind Remoxy, plummeting.
Pfizer was conducting five clinical trials for Remoxy with which it planned to refile the drug in the US in...





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