In chemistry, enantiomers are stereoisomers that are non-superimposable complete mirror images of one another. Enantiomers may be either “right-handed” (dextro-rotary) S(+)-isomers, or “left-handed” (levo-rotary) R(-)-isomers. A racemic mixture is one that has equal amounts of “left- and right-handed” enantiomers of a particular chiral molecule. For …
In a previous post, we reported on an assessment conducted by the Analysis Group, Inc. on the effects of authorized generics on paragraph IV patent certifications. There, the authors concluded that “[t]here is no evidence to suggest that authorized generic entry causes delayed generic entry.” …
There is a wise political maxim, “Fool me once, shame on you; fool me twice, shame on me.” Not to be fooled a second time, the U.S. Senate has passed legislation that would, if enacted, make significant changes in the way FDA handles so-called “generic …
We previously reported that Pfizer submitted a citizen petition (2007P-0110) and a petition for stay of action (2007P-0111) requesting that FDA take certain action with respect to Novartis’s LOTREL (amlodipine besylate; benazepril HCl) subsequent to Pfizer’s decision to revoke (as of midnight March 25, 2007) …
On May 22, 2007, the Competitive Enterprise Institute (“CEI”), a self-described non-profit public policy organization dedicated to advancing the principles of free enterprise and limited government, published a report, titled “Healthy Competition: The Case for Generic and Follow-On Biologics.” The report, authored by Gregory Conko, …
Last week we reported on motions submitted by Mylan and Apotex requesting that the U.S. District Court for the District of Columbia reconsider its April 30, 2007 memorandum opinion concerning 180-day generic drug and pediatric exclusivity issues involving NORVASC (amlodipine besylate) Tablets and the availability …
Yesterday, a former Federal Trade Commission (“FTC”) staffer recommended that drug companies follow a “moderate approach” in pursuing “reverse payments” — payments made by brand name companies to generic drug companies to persuade the generic companies to stay off the market for a particular drug. …
It has been a hectic week for those of us following the various twists and turns involving generic versions of Pfizer’s high blood pressure drug NORVASC (amlodipine besylate) Tablets and the availability and applicability of both 180-day generic drug exclusivity and pediatric exclusivity with respect …
On April 20, 2007, Arnold & Porter submitted a citizen petition and a petition for stay of action on behalf of Medicis Pharmaceutical Corp. asking FDA to change the Agency’s policy with respect to Hatch-Waxman patent and exclusivity benefits for combination drugs containing a so-called …
On April 18, 2007, Analysis Group, Inc. announced the release of a report assessing the effects of the market entry of authorized generics on paragraph IV patent certifications. FDA has described an authorized generic as “[a]ny marketing by an NDA holder or authorized by an …
Earlier today, FDA issued its decision with respect to amlodipine generics and the applicability of Mylan’s 180-day exclusivity and Pfizer’s pediatric exclusivity. The U.S. District Court for the District of Columbia in Mylan v. Leavitt had ordered FDA to respond to Mylan’s TRO motion by …
Last week, we reported on several citizen petitions submitted to FDA by Mylan and Pfizer concerning the availability and applicability of 180-day exclusivity and pediatric exclusivity to amlodipine drug products. FDA has also established a separate docket to solicit the views of interested parties on …
The Federal Circuit’s March 22, 2007 decision invalidating Pfizer’s patent on NORVASC (amlodipine besylate), and Mylan’s commercial launch of its generic version approved under ANDA #76-418 later that day triggering the company’s 180-day exclusivity period has set off a flurry of activity, both in the …
As the backlog of pre-Medicare Modernization Act (“MMA”) ANDAs is cleared and disputes over 180-day exclusivity under the old statutory regime become a vestige of the past, new post-MMA disputes over 180-day exclusivity will certainly take their place, particularly as they concern forfeiture. Indeed, within …
FDA’s highly anticipated PDUFA IV proposal, if enacted by Congress, would eliminate any possibility that a 505(b)(2) application might not be an application subject to PDUFA user fees. Among various technical changes included in the Agency’s PDUFA IV proposal, FDA recommends that Congress “[s]implify the …
