New Drug Approvals





7 MAR 2013

The US Food and Drug Administration (FDA) has issued a Complete Response Letter (CRL) to Nuvo Research’s US licensing partner, Mallinckrodt, following the review of Mallinckrodt’s New Drug Application (NDA) for diclofenac sodium topical solution, 2% w/w (PENNSAID 2%).

FDA in the letter mentioned that it requires Mallinckrodt’s complete pharmacokinetic study comparing PENNSAID 2% to original PENNSAID 1.5%.

FDA denied to review the similar pharmacokinetic studies submitted by Mallinckrodt with the NDA, as the reserve samples were not retained at the clinical site.

Pharmacokinetic studies are standard studies conducted during a drug development program to identify the total exposure or the amount of drug that reaches the blood stream after a patient receives both single and multiple doses of the product.

Mallinckrodt has suggested Nuvo that it expects to complete the study and submit the results to the FDA in the third…

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