
Firm Wastes No Time Trying to Copy Weight Loss Drug
The first ANDA for Vivus’s diet drug Qsymia (phenteramine hydrochloride and topiramate) appeared in today’s Paragraph IV new postings. The Paragraph IV database is where first-to-file ANDAs containing Paragraph IV challenges to the reference listed drug are posted. The receipt date reported on the FDA site is July 18, 2013, which is just 6 days more than a year since Qsymia was approved (July 12, 2013).
Qsymia is an extended-release product; thus, the turnaround for generic development, generation of required stability data, conduct of successful bioequivalence studies and putting the ANDA together was almost as much time as FDA took to decide the ANDA was acceptable for receipt (almost 10 months).