Supernus Pharmaceuticals, Inc.

Vaunnex Inc.

Avinash Nangia

Jules S Jacob

Daya Verma

James Yeh

Vijayalakshmi Ramanan

The present invention is directed to pharmaceutical compositions that allow for once-daily or alternate day dosage forms of topiramate. The proposed delayed/extended release single dosage form is equivalent to the immediate-release multiple dose daily regimen, and upon administration, provides steady state blood levels of topiramate. Formulations with increased bioavailability and improved pharmacokinetics are disclosed. A once-a-day administration of topiramate is advantageous over the multiple dose regimen both in terms of patient compliance and reduced adverse events, thus providing better treatment of the conditions for which the topiramate is indicated.

Topiramate compositions and methods of enhancing its bioavailability

Polymers and compositions, collectively 'bioadhesive materials', with improved bioadhesive properties have been developed. One or more compounds comprising: a) an aromatic moiety comprising two or more hydroxyl substituents, methoxy substituents, substituents hydrolyzable to hydroxyl substituents, or a combination thereof, and b) a primary or secondary amino moiety are either covalently attached to a polymer or are physically mixed with a polymer to form a bioadhesive material. These bioadhesive materials can be used, for example, to fabricate new drug delivery or diagnostic systems with increased residence time at tissue surfaces, and consequently increase the bioavailability of a drug or a diagnostic agent.

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Sharon, MA, United States of America

Avinash Nangia