Avenue Gets ‘Complete Response’ on Pain Drug

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FDA has issued Avenue Therapeutics a complete response letter due to safety concerns on its NDA for intravenous tramadol, indicated for treating patients in acute pain who require an opioid. The FDA letter told the company that while its Phase 3 clinical trials demonstrated statistically significant outcomes for all of the primary and many secondary endpoints, the agency had determined that it cannot approve the application in its present form because the drug is not safe for the intended patient population, Avenue says. “Specifically, if a patient requires an analgesic between the first dose of IV tramadol and the onset of analgesia, a rescue analgesic would be needed,” it says. “The likely choice would be another opioid, which would result in opioid ‘stacking’ and increases the likelihood of opioid-related adverse effects.” Additionally, FDA said it will require an adequate terminal sterilization validation prior to NDA approval, which the company says it is planning for later this quarter.

 

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