Which drugs does patent 5,972,920 protect, and when does it expire?
Patent 5,972,920protects CLOBEX and is included in one NDA. There have been three Paragraph IV challenges on Clobex.
Summary for Patent: 5,972,920
Formulation containing a carrier, active ingredient, and surfactant for treating skin disorders
One or more formulations for treating psoriasis and other skin disorders characterized by redness, itching, flaking, scaling, and plaque-type growth. The formulation includes a carrier component, one or more active ingredient components, and a surfactant component. The carrier preferably includes an alcohol in substantially equal volume with isopropyl myristate. The active ingredient component preferably includes a superpotent or high-potency corticosteroid such as clobetasol propionate, an anti-flaking ingredient such as zinc pyrithione, or a combination of the two. It may also include an anti-fungal compound. The surfactant component preferably includes an alkyl sulfate such as sodium lauryl sulfate. The formulations made by applied topically either in spray form or as a direct-contact liquid.
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