Galderma Labs, L.P. v. Tolmar, Inc., No. 13-1034 (Fed. Cir. 2013)
Annotate this CaseTolmar’s filed an Abbreviated New Drug Application (ANDA) seeking approval to market a generic version of Differin® Gel, 0.3%, a topical medication containing 0.3% by weight adapalene approved for the treatment of acne. Galderma sued Tolmar, alleging that Tolmar’s ANDA product infringed its patents. The district court ruled against Tolmar, finding the Galderma patents not invalidity for obviousness under 35 U.S.C.103. The Federal Circuit reversed, after examining prior art. While the comparable tolerability of 0.1% and 0.3% adapalene was unexpected in view of the prior art, a skilled artisan would have expected that tripling the concentration of adapalene would have resulted in a clinically significant increase in side effects, so the result does not constitute an unexpected result that is probative of nonobviousness. The commercial success of Differin® is of “minimal probative value.”
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