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Catalyst Pharmaceutical Partners Provides Update On FIRDAPSE(TM) Progress

Based on this progress and its patient enrollment projections, Catalyst continues to expect:

  • to complete enrollment of 36 subjects in the Phase III trial during the 4 th quarter of 2013; and
  • to report top-line results from the double-blind portion of the Phase III trial during the second quarter of 2014.

Assuming positive results are obtained from the Phase III trial, Catalyst expects:

  • to submit an NDA for Firdapse in the first quarter of 2015;
  • to obtain approval from the FDA of such NDA by the end of 2015; and
  • to commercially launch Firdapse in the first half of 2016.

About LEMS

Lambert-Eaton Myasthenic Syndrome, LEMS, is a rare autoimmune disease that can be severely disabling, with the primary symptom of muscle weakness. The weakness is generally more marked in the proximal muscles, particularly of the legs and trunk. Other problems include reduced reflexes, drooping of the eyelids, facial weakness and problems with swallowing. Patients often report dry mouth, impotence, constipation and feelings of light headedness on standing. These problems can be life threatening when the weakness involves respiratory muscles. The muscle weakness in LEMS is caused by autoantibodies to voltage gated calcium channels, which cause a reduction in the amount of acetylcholine released from nerve terminals. The prevalence of LEMS is estimated at approximately 3,000 patients in the United States and Canada. Approximately 50 percent of LEMS patients diagnosed have small cell lung cancer. Patients with LEMS typically present with fatigue, muscle pain and stiffness. A diagnosis of LEMS is generally made on the basis of clinical symptoms, electromyographic and compound muscle action potential (CMAP) testing and where available, the presence of autoantibodies against voltage gated calcium channels.

About Catalyst Pharmaceutical Partners

Catalyst Pharmaceutical Partners, Inc., is a specialty pharmaceutical company focused on the development and commercialization of prescription drugs targeting rare (orphan) neuromuscular and neurological diseases, including Lambert-Eaton Myasthenic Syndrome (LEMS), infantile spasms, and Tourette's Syndrome. Catalyst's lead candidate, Firdapse™ for the treatment of LEMS, is currently undergoing testing in a global, multi-center, pivotal phase III trial. Catalyst is also developing a potentially safer and more potent vigabatrin analog (designated CPP-115) to treat infantile spasms, and epilepsy, as well as other neurological conditions associated with reduced GABAergic signaling, like post-traumatic stress disorder, Tourette's Syndrome, and movement disorders associated with the treatment of Parkinson's Disease.

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