Sandoz Does Not Infringe Canadian Rapaflo Patent

But Generics Firm Fails To Convince Federal Court On Invalidity

Sandoz has succeeded in convincing a Canadian court that its generic version of Rapaflo does not infringe a formulation patent for silodosin capsules, although the firm’s invalidity claims fell on deaf ears.

Canada Law Gavel Flag
Sandoz has triumphed in Canadian litigation over Rapaflo • Source: Shutterstock

Sandoz’ proposed generic version of Allergan’s Rapaflo (silodosin) capsules does not infringe a key Canadian formulation patent protecting the benign prostatic hyperplasia treatment, a federal court has ruled. However, the Ontario court rejected Sandoz’ argument that Canadian patent 2,507,002 was invalid for obviousness.

The litigation was prompted by the generics firm filing an application for a Notice of Compliance – effectively a marketing...

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