Thanks Pat and good morning, everyone. In December we completed submission of the NDA for Firdapse for the treatment of Lambert-Eaton myasthenic syndrome and congenital myasthenic syndrome. Both of these diseases are ultra rare with prevalences in the United States believed to be approximately 3,000 and 1,000 to 1,500 patients respectively. As Pat previously stated, we're constantly scheduled to meet with the FDA in early April to try to resolve any open issues and to resubmit our NDA for Firdapse as soon thereafter as possible. As Pat also previously mentioned the Refusal to File Letter does not comment on the safety and efficacy information provided in our NDA. It is our hope that the issues raised in the letter can be resolved in a relatively short period of time and that our NDA can be resubmitted in the second or third quarter. However until we meet with the FDA and work out a path forward that is acceptable to the agency, we will not be able to layout our future development plans for Firdapse and the timing of our activities. On our pipeline, we recently announced topline results from our Phase 1b double-blind placebo-controlled safety and tolerance study of CPP-115 in normal healthy volunteers. The results showed significant increases in brain levels of the surrogate marker for potential efficacy, Gamma-aminobutyric acid or GABA. The main adverse effect of prolonged elevated brain GABA somnolence, was also observed. While the primary objective of this study was to obtain safety and tolerance data for CPP-115 administered over 14 days, brain GABA levels were measured as a surrogate marker of potential efficacy, since CPP-115 is a second generation GABA aminotransferase inhibitor. Specifically, this study examined GABA levels in both the Parietal-Occipital Cortex a grey matter rich region that approximates brain regions thought to be associated with epilepsy, and which was previously studied for vigabatrin, the Supplementary Motor Area, which is thought to be associated with Tourette's Disorder results of study. The maximum brain GABA increases, in both brain regions, ranged from about 150% to over 200% of baseline levels, as measured by magnetic resonance spectroscopy. We're presently evaluating the full results of this study including additional data from laboratory safety test and pharmacokinetic modeling of the patients in this study and developing a plan to make CPP-115 Phase 2 ready. We hope to commence our next study sometime in 2016 subject to the availability of funding. We are currently conducting a small clinical trial to support any future NDA we file for Firdapse for the treatment of CMS. The trial is a small blinded trial in the pediatric CMS population ages 2 to 17. We are also currently supporting an investigator sponsored adequate and well controlled clinical trial evaluating safety, tolerability and efficacy of Firdapse as a symptomatic treatment for patients with MuSK-Antibody Positive Myasthenia Gravis. The MuSK study is being conducted by a team of researchers led by Renato Mantegazza, MD, Director, Department of Neuroimmunology and Neuromuscular Diseases at the Fondazione Istituto Neurologico Carlo Besta in Milan, Italy, a major referral center for Myasthenia Gravis patients including MuSK antibody patients, Antibody Positive Myasthenia Gravis patients. The study is designed as a one-to-one randomized, double-blind, placebo-controlled, crossover, outpatient study to evaluate the safety, tolerability and potential efficacy of amifampridine in patients diagnosed with MuSK MG. The study is planned to include approximately 20 patients and we anticipate reporting top-line results from the study in about a year. Catalyst is providing study drug and financial support for the study. I will now turn the call over to Ali to review our financial results.