In a nonprecedential opinion issued on November 13, 2017, the United States Court of Appeals for the Federal Circuit affirmed a district court finding that Apotex’s aBLAs for biosimilar versions of Neulasta® and Neupogen® did not infringe an Amgen protein folding patent. The Federal Circuit affirmed the non-infringement finding despite statements made in Apotex’s pre-litigation letters sent during the parties’ information exchange (i.e., the “patent dance”), which the district court found were controverted by evidence presented by Apotex at trial.

Background

Amgen makes the biologic drugs Neulasta® (pegfilgrastim) and Neupogen® (filgrastim). Apotex submitted aBLAs (“abbreviated Biologics License Applications”) to the FDA seeking approval of biosimilar versions of both drugs under the BPCIA (“Biologics Price Competition and Innovation Act”) framework. The parties engaged in the BPCIA’s “patent dance” information exchange process, whereby Apotex provided Amgen with copies of Apotex’s aBLAs. Amgen ultimately brought suit under 35 U.S.C. § 271(e)(2)(C), (a) and (g), asserting that Apotex’s proposed manufacturing processes would infringe, among others, Amgen’s U.S. Patent. No. 8,952,138 (the ‘138 patent).

The ‘138 patent covers a method of refolding misfolded proteins. This process purportedly allows for large-scale protein refolding using lower reagent volumes than was previously possible. The district court construed (and the Federal Circuit did not reverse) asserted claim 1 of the ‘138 patent to require “refold mixture” protein concentrations above 1.0 g/L. Continue Reading Federal Circuit Evaluates Import of Factual Statements Made During BPCIA Pre-litigation Patent Dance

On July 17, 2017, the United States Court of Appeals for the Federal Circuit reversed, in a precedential opinion in Millennium Pharmaceuticals, Inc. v. Sandoz, Inc., No. 2015-2066 (Fed. Cir. July 17, 2017), a district court ruling that claims of a patent directed to the Velcade® cancer treatment drug compound were invalid as obvious. The Court held that the District of Delaware clearly erred by finding U.S. Patent No. 6,713,446 (the ‘446 patent) prima facie obvious to one of skill in the art, and by misapplying the secondary indicia of unexpected success and long-unmet need.

Continue Reading Federal Circuit Thoroughly Reverses District Court Findings of Velcade® Patent Obviousness

In a unanimous decision issued on June 12, 2017, the Supreme Court for the first time interpreted key provisions of the 2010 Biologics Price Competition and Innovation Act (“BPCIA”). See Sandoz Inc. v. Amgen Inc., No. 15-1195 (U.S. June 12, 2017). The Court’s decision grants more flexibility to biosimilar companies and filers of abbreviated Biologics License Applications (“aBLAs”), holding that (1) a reference product sponsor is not entitled to injunctive relief under federal law for an applicant’s refusal to provide a copy of its aBLA and manufacturing information during the information exchange period contemplated by the BPCIA, and (2) an applicant may provide statutory 180-day pre-launch notice of commercial marketing before its proposed biosimilar product is licensed by FDA. An overview of the parties’ oral arguments before the Court on these issues can be found here.

Continue Reading Amgen v. Sandoz: The Supreme Court’s First Biosimilars Ruling