The Company	9 Months Ended
Sep. 30, 2015
The Company
The Company	1.The Company PTC Therapeutics, Inc. (the Company or PTC) was incorporated as a Delaware corporation on March 31, 1998. PTC is a global biopharmaceutical company focused on the discovery, development and commercialization of orally administered, small molecule therapeutics targeting an area of RNA biology referred to as post-transcriptional control. The letters “PTC” in the corporate name are an acronym for post-transcriptional control processes, which are the regulatory events that occur in cells during and after a messenger RNA is copied from DNA through the transcription process. The Company has discovered all of its compounds currently under development using its proprietary technologies. The Company plans to continue to develop these compounds both on its own and through selective collaboration arrangements with leading pharmaceutical and biotechnology companies. The Company believes that systematically targeting post-transcriptional control processes represents an unexploited approach to drug discovery and development. The Company’s internally discovered pipeline addresses multiple therapeutic areas, including rare disorders, oncology and infectious diseases. The Company’s lead product, Translarna™ (ataluren) received marketing authorization from the European Commission, or EC, in August 2014 for the treatment of nonsense mutation Duchenne muscular dystrophy, or nmDMD, in ambulatory patients age five years and over in the 31 member states of the European Economic Area, or EEA. This marketing authorization is subject to annual review and renewal by the European Medicines Agency, or EMA, following its reassessment of the risk-benefit balance of the authorization and is further conditioned on the Company’s submission of the final report, including additional safety and efficacy data, from its global, confirmatory Phase 3 clinical trial in nmDMD, which it refers to as ACT DMD, during 2015. See “Risk Factors - Risks Related to Regulatory Approval of our Product and our Product Candidates” on page 61 for further detail regarding the annual EMA reassessment process, including a description of the risk-benefit balance. In October 2015, the Company announced results from ACT DMD, including that the trial did not meet the primary efficacy endpoint of change from baseline at week 48 in distance walked in the 6-minute walk test, or 6MWT, which we also refer to as six-minute walk distance, or 6MWD, in the overall intent-to-treat, or ITT, study population, as it showed a 15 meter benefit (p=0.213) in favor of Translarna compared to placebo, which was not statistically significant. Analyses of data from pre-specified subgroups, including patients with baseline 6MWD of 300 - 400 meters, was also conducted. A pre-specified meta-analysis was also performed of combined data from the ACT DMD and ambulatory decline phase patients from the Company’s randomized, double-blind, placebo controlled, Phase 2b clinical trial evaluating the long-term safety and efficacy of Translarna in patients with nmDMD, or the Phase 2b trial. For further discussion of ACT DMD, see “Recent Developments” in Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.” See “Risk Factors - Risks Related to the Development and Commercialization of our Product and Product Candidates” on page 40 for further detail regarding how ACT DMD results could impact our ability to commercialize Translarna. The Company launched Translarna on a commercial basis in Germany in December 2014 and in Austria, Denmark, Norway, and Sweden in 2015. The Company expects to expand its launch activities across the EEA in the fourth quarter of 2015 and in future years, subject to successful completion of pricing and reimbursement negotiations. The market access process, including pricing and reimbursement negotiations, varies from country to country and can take over 18 months in certain circumstances. Concurrently, the Company has been making Translarna available under reimbursed early access programs in selected countries where those mechanisms exist, both within Europe and in those countries outside of Europe that will reference the marketing authorization described above. During 2015, the Company’s revenues have been and are expected to be primarily generated from sales of Translarna in counties in the EEA where pricing and reimbursement approval is obtained at acceptable levels and in other territories where permitted to distribute Translarna under early access programs, or EAPs. The Company is subject to a number of risks similar to those of other early stage companies, including dependence on key individuals, the difficulties inherent in the development of commercially usable products, the potential need to obtain additional capital necessary to fund the development of its products, and competition from other companies. As of September 30, 2015, the Company had an accumulated deficit of approximately $542.1 million. The Company has financed its operations to date primarily through the private offering in August 2015 of 3.00% convertible senior notes due 2022 (see Note 9), public offerings of common stock in February 2014 and October 2014, its initial public offering of common stock in June 2013, private placements of its convertible preferred stock, collaborations, bank debt, convertible debt financings, grant funding and clinical trial support from governmental and philanthropic organizations and patient advocacy groups in the disease area addressed by the Company’s product candidates.

1.The Company

PTC Therapeutics, Inc. (the Company or PTC) was incorporated as a Delaware corporation on March 31, 1998. PTC is a global biopharmaceutical company focused on the discovery, development and commercialization of orally administered, small molecule therapeutics targeting an area of RNA biology referred to as post-transcriptional control. The letters “PTC” in the corporate name are an acronym for post-transcriptional control processes, which are the regulatory events that occur in cells during and after a messenger RNA is copied from DNA through the transcription process. The Company has discovered all of its compounds currently under development using its proprietary technologies. The Company plans to continue to develop these compounds both on its own and through selective collaboration arrangements with leading pharmaceutical and biotechnology companies. The Company believes that systematically targeting post-transcriptional control processes represents an unexploited approach to drug discovery and development. The Company’s internally discovered pipeline addresses multiple therapeutic areas, including rare disorders, oncology and infectious diseases.

The Company’s lead product, Translarna™ (ataluren) received marketing authorization from the European Commission, or EC, in August 2014 for the treatment of nonsense mutation Duchenne muscular dystrophy, or nmDMD, in ambulatory patients age five years and over in the 31 member states of the European Economic Area, or EEA. This marketing authorization is subject to annual review and renewal by the European Medicines Agency, or EMA, following its reassessment of the risk-benefit balance of the authorization and is further conditioned on the Company’s submission of the final report, including additional safety and efficacy data, from its global, confirmatory Phase 3 clinical trial in nmDMD, which it refers to as ACT DMD, during 2015. See “Risk Factors - Risks Related to Regulatory Approval of our Product and our Product Candidates” on page 61 for further detail regarding the annual EMA reassessment process, including a description of the risk-benefit balance.

In October 2015, the Company announced results from ACT DMD, including that the trial did not meet the primary efficacy endpoint of change from baseline at week 48 in distance walked in the 6-minute walk test, or 6MWT, which we also refer to as six-minute walk distance, or 6MWD, in the overall intent-to-treat, or ITT, study population, as it showed a 15 meter benefit (p=0.213) in favor of Translarna compared to placebo, which was not statistically significant. Analyses of data from pre-specified subgroups, including patients with baseline 6MWD of 300 - 400 meters, was also conducted. A pre-specified meta-analysis was also performed of combined data from the ACT DMD and ambulatory decline phase patients from the Company’s randomized, double-blind, placebo controlled, Phase 2b clinical trial evaluating the long-term safety and efficacy of Translarna in patients with nmDMD, or the Phase 2b trial. For further discussion of ACT DMD, see “Recent Developments” in Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.” See “Risk Factors - Risks Related to the Development and Commercialization of our Product and Product Candidates” on page 40 for further detail regarding how ACT DMD results could impact our ability to commercialize Translarna.

The Company launched Translarna on a commercial basis in Germany in December 2014 and in Austria, Denmark, Norway, and Sweden in 2015. The Company expects to expand its launch activities across the EEA in the fourth quarter of 2015 and in future years, subject to successful completion of pricing and reimbursement negotiations. The market access process, including pricing and reimbursement negotiations, varies from country to country and can take over 18 months in certain circumstances. Concurrently, the Company has been making Translarna available under reimbursed early access programs in selected countries where those mechanisms exist, both within Europe and in those countries outside of Europe that will reference the marketing authorization described above.

During 2015, the Company’s revenues have been and are expected to be primarily generated from sales of Translarna in counties in the EEA where pricing and reimbursement approval is obtained at acceptable levels and in other territories where permitted to distribute Translarna under early access programs, or EAPs. The Company is subject to a number of risks similar to those of other early stage companies, including dependence on key individuals, the difficulties inherent in the development of commercially usable products, the potential need to obtain additional capital necessary to fund the development of its products, and competition from other companies. As of September 30, 2015, the Company had an accumulated deficit of approximately $542.1 million. The Company has financed its operations to date primarily through the private offering in August 2015 of 3.00% convertible senior notes due 2022 (see Note 9), public offerings of common stock in February 2014 and October 2014, its initial public offering of common stock in June 2013, private placements of its convertible preferred stock, collaborations, bank debt, convertible debt financings, grant funding and clinical trial support from governmental and philanthropic organizations and patient advocacy groups in the disease area addressed by the Company’s product candidates.