As defenses go, there's few better than "I don't infringe." Unfortunately, it's quite difficult to prove at the motion to dismiss stage. It is, after all, the rare complaint that contains the dark seed of its own demise on this front.
You might think that a motion to dismiss based on non-infringement would be a little bit easier in the ANDA context. After all, you have this giant document listing everything in your product and what it does. You would be wrong.
Such was the lesson of Judge Fallon's opinion in Allergan, Inc. v. Mankind Pharma Ltd., C.A. No. 23-272 (D. Del. Dec. 21, 2023), unsealed last week. The patent there required (amongst dozens of assorted buffers, reagents, uppers, downers, and excipients) a phosphate buffer. The defendant responded by pointing out that none of the 3.2 trillion ingredients listed in their ANDA contained any phosphorus.
(Eds. Note—for the liberal arts majors amongst you, phosphorous is a pretty big part of anything "phosphate")
They thus moved for judgment on the pleadings of no literal infringement, reasoning that the ANDA controlled the infringement inquiry. Judge Fallon denied the motion however, holding that it was possible future evidence might contradict the ANDA:
Mankind Pharma insists that the ANDA specification controls the infringement inquiry. However, the case law cited by Mankind Pharma in support of this proposition explains that the infringement inquiry is based not only on the ANDA filing, but also on "other materials submitted by the accused infringer to the FDA, and other evidence provided by the parties." The Federal Circuit explained "[i]t is ... possible, at least in theory, that other evidence may directly contradict the clear representations of the ANDA and create a dispute of material fact[,]" even if "[s]uch circumstances [are] unlikely to arise in practice[.]" Consistent with this recitation of the applicable standard, each case cited by Mankind Pharma was decided on a fully developed record, either on summary judgment or following a bench trial.
Allergan, Inc. v. Mankind Pharma Ltd., C.A. No. 23-272, at 5-6 (D. Del. Dec. 21, 2023) (internal citations omitted).
This case follows several similar decisions in the district, Novartis Pharmaceuticals Corp. v. Alembic Pharms. Ltd, C.A. No. 22-1395-RGA, 2023 WL 6387975, at *5 (D. Del. Sept. 29, 2023) and InfoRLife SA v. Sun Pharm. Ind. Ltd, C.A. No. 21-1740-WCB, D.I. 153 at 4-5 (D. Del. Nov. 21, 2022), which the opinion discusses at some length. Neither of those cases however were quite as factually stark as the one presented here, where the claims clearly require phosphorus, and the ANDA includes . . . no phosphorus.
