Califf: FDA’s Duty to OK Generic Opioids is a ‘Difficult Problem’
Is FDA looking for some wiggle room to skirt its obligation under current law to approve generic opioids in the face of unprecedented public alarm about the current abuse epidemic? Addressing the recent Rx Opioid and Drug Abuse Summit in Atlanta, FDA commissioner Robert Califf acknowledged calls for the agency to limit the number of opioids it approves. “But there are limits to what we can do under the current law,” he said. “Under the current law, FDA is obligated to approve an application for a generic drug unless the product fails to demonstrate bioequivalence to the innovator or it does not meet other standards. This is a difficult problem that we’ll be talking about more in the near future.”
In contrast, Califf said ensuring appropriate access to generic abuse-deterrent opioids is an important element in the agency’s broader strategy to help combat abuse. “We’ve noticed in prescribing patterns that abuse-deterrent formulations have not taken a large share of the market, perhaps in part due to the much higher cost without generic formulations on the market,” he said. “So the availability of less costly generic products has the potential to increase the use of abuse-deterrent formulations.”
Califf said that an “essential piece of developing new abuse deterrent products is having the necessary data on the impact of existing [abuse-deterrent formulation] ADF products. That’s why FDA has made the decision that all sponsors of brand name products with approved abuse-deterrent labeling must conduct long-term studies to assess their effectiveness in reducing abuse in practice. To generate further discussion and ideas on this topic that could lead to more effective ADFs, we have scheduled three advisory committee meetings on ADF opioids in May and June. You can see there will be plenty of opportunity for discussions, and we do seek your input and guidance on these issues.”