Crestor Patent Battle Could Have Ripple Effect: Is A Salt Equivalent To Base Compound?
Watson filed a 505(b)(2) NDA for a zinc salt of AstraZeneca’s Crestor, which AstraZeneca claims infringes its patent; if Watson prevails more generic manufacturers may pursue this pathway around a patent.
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The agreement permits Actavis to launch its generic version of AstraZeneca’s Crestor 67 days before the patent on the cholesterol-lowering drug expires in return for paying AstraZeneca 39% of its net sales during this period; Actavis may also launch its alternative zinc salt formulation of Crestor at the same time.
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