Catyalyst Pharmaceutical (CPRX) Updates on FY15 Goals; Sees Pre-NDA Meeting in Q1 for Firdapse

Catyalyst Pharmaceutical (NASDAQ: CPRX) announced the company's 2015 goals for its product portfolio. The Company will be hosting 1x1 meetings this week in conjunction with The Trout Group Management Access Conference in San Francisco, January 12-15. The Company's presentation materials will be available on the "Investors" section of the Company's website, www.catalystpharma.com.

Firdapse™ has been granted Breakthrough Therapy and Orphan Drug Designations by the FDA for the treatment of Lambert-Eaton Myasthenic Syndrome (LEMS) and reported positive results from its Phase 3 clinical trial evaluating Firdapse™ for the treatment of LEMS in September 2014. The Company has also initiated an expanded access program (EAP) under which patients with LEMS and Congenital Myasthenic Syndrome (CMS), who meet the inclusion/exclusion requirements, have access to Firdapse™ via the EAP, at no charge to the patients. Catalyst expects to meet with the FDA for its pre-NDA meeting in Q1 2015, to begin its rolling NDA submission for Firdapse™ for the treatment of LEMS sometime thereafter and to complete its NDA submission sometime in Q3 2015. Catalyst recently promoted David D. Muth to Chief Commercial Officer as it continues to build out its commercial team ahead of a potential launch of the product in 2016.

Catalyst is continuing to develop CPP-115, a novel GABA-aminotransferase inhibitor, for a broad range of central nervous system indications, such as infantile spasms, epilepsy, Tourette Syndrome and Post Traumatic Stress Disorder (PTSD). The Company expects initial top line results from an academic investigator sponsored proof-of-concept study evaluating another GABA-aminotransferase inhibitor, vigabatrin, for the treatment of Tourette's Disorder during the second quarter of 2015. It also expects to obtain the results of its Phase 1 MAD study of CPP-115 during the second quarter of 2015. Additionally, Catalyst plans to explore other selected diseases in which modulation of GABA levels might be beneficial.

"This year will provide significant anticipated milestones and achievements for the company and our pipeline as we move towards an NDA filing for Firdapse™ this summer," said Patrick J. McEnany, Chief Executive Officer of Catalyst. "Along with the commencement of the expanded access program, we continue to focus on our pre-commercial activities for Firdapse™ in the LEMS community, as we prepare for an anticipated launch of the product in the first half of 2016, pending FDA approval. Finally, exploration of additional indications like Congenital Myasthenic Syndrome for Firdapse™ may provide further opportunities to expand the market and serve additional patients with unmet medical needs."

Anticipated 2015 Goals

Catalyst expects to achieve the following key milestones in the upcoming year:

• Conduct Pre-NDA meeting. Catalyst expects to hold a pre-NDA meeting with the FDA in Q1 2015.
• Submit Firdapse™ NDA to FDA. Catalyst expects to complete its renal safety study and full toxicology program for Firdapse™ in Q2 2015, with an anticipated completion of an NDA submission to the FDA by Q3 2015.
• Complete launch of Firdapse™ expanded access program. Catalyst is currently enrolling LEMS and CMS patients in the expanded access program, which will provide Firdapse™ at no charge to patients who meet the inclusion/exclusion requirements.
• Complete all pre-commercialization activities required for successful Firdapse™ launch. The Company will continue to focus on pre-commercial activities ahead of an estimated approval / launch of Firdapse™ in 1H 2016.
• CPP-109: Top-line results from Tourette's Disorder. An academic investigator sponsored study evaluating CPP-109 for the treatment of Tourette's Disorder is ongoing at Mt. Sinai, in New York, and Catalysts expects to announce topline results in the first half of 2015.
• CPP-115: Catalyst expects to announce topline results from a Phase 1 multiple dose safety and tolerance study in the first half of 2015.
• Exploration of additional indications for Firdapse™. Catalyst plans to continue to explore additional indications including Congenital Myasthenic Syndrome and refractory Myasthenia Gravis.

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