A disappearing Pediatric Exclusivity and other musings about the June 2019 Orange Book supplement
In mid-July the FDA released their June 2019 (Vol. 39, Supp. 6) Orange Book raw data. Here are a few observations about Supplement 6: There were 47 new patents listed in June. Only four of the newly listed patents had traditional compound claims which does not include new polymorphs, salts or hydrates. One patent was delisted in June. The patent, 8,759,316, had been listed for KENGREAL ® (cangrelor) from Chiesi USA. The claims are directed to a method of transitioning a patient from administration of cangrelor during percutaneous coronary intervention (“PCI”, which is the more modern name for angioplasty with stent) to administration of cangrelor in preparation for surgery, or vice versa. Cangrelor is not in the latest Patent Listing Disputes list, nor is it in the July 16, 2019 “Paragraph IV Patent Certifications” list. The NCE-1 date occurred on June 22. So why was the patent delisted? One thought that I had was based upon the lack of any mention in the KENGREAL label of...