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PTC Therapeutics Provides Corporate Update

February 29, 2024

PTC Therapeutics, Inc., (NASDAQ: PTCT) today announced a corporate update and financial results for the fourth quarter and full year ending December 31, 2023.

“We closed out 2023 with strong revenue performance in the fourth quarter,” said Matthew Klein, M.D., Chief Executive Officer, PTC Therapeutics, Inc. “We are well-positioned for a successful 2024 with several potential exciting clinical and regulatory milestones ahead. We look forward to initiating the global regulatory submissions for sepiapterin for the treatment of PKU, which we see as a potential billion-dollar opportunity, as well as to advancing our PTC518, vatiquinone, and utreloxastat programs.”

Key Corporate Updates:

  • 2023 total revenue of $938 million, representing 34% year-over-year growth
  • 2023 revenue for the DMD franchise was $611 million
    • Translarna™ (ataluren) net product revenue was $356 million, driven by new patients in existing geographies and continued geographic expansion.
    • Emflaza® (deflazacort) net product revenue was $255 million, resulting from new patient starts and high compliance.

Key Clinical and Regulatory Milestones:

  • PTC expects to submit an MAA to the EMA for sepiapterin for the treatment of PKU in March 2024 and expects to submit an NDA to the FDA for sepiapterin no later than the third quarter of 2024.
  • PTC had a Type C meeting with the FDA in the first quarter of 2024 to discuss the vatiquinone Friedreich ataxia program. Based on discussions with the FDA, PTC has a potential path to an NDA submission in late 2024 based on the placebo-controlled results of MOVE-FA, along with data from the ongoing open-label extension study.
  • PTC expects to submit a BLA to the FDA for Upstaza™ for the treatment of AADC deficiency in March 2024.
  • PTC expects to meet with the FDA to discuss a potential NDA resubmission of Translarna in March 2024.
  • PTC expects to provide an interim data update for the PIVOT-HD trial of PTC518 for Huntington’s disease patients in the second quarter of 2024. This update will include 12-month data on the initial group of subjects for which data was reported in June 2023.
  • PTC expects to report topline data for the CardinALS trial of utreloxastat for ALS in the fourth quarter of 2024.

Fourth Quarter and Full Year 2023 Financial Highlights:

  • Total revenue was $307.1 million for the fourth quarter of 2023, compared to $167.4 million for the fourth quarter of 2022. Total revenue was $937.8 million for full year 2023, compared to $698.8 million for full year 2022.
  • Total revenue included net product revenue across the commercial portfolio of $155.1 million for the fourth quarter of 2023 and $661.2 million for full year 2023, compared to $127.5 million for the fourth quarter of 2022 and $535.2 million for full year 2022. Total revenue also included collaboration, royalty, and manufacturing revenue of $152.0 million in fourth quarter of 2023 and $276.6 million for full year 2023, compared to $39.9 million for the fourth quarter of 2022 and $163.6 million for full year 2022.
  • Translarna net product revenue was $75.2 million for the fourth quarter of 2023, compared to $55.8 million for the fourth quarter of 2022. Translarna net product revenue was $355.8 million for full year 2023, compared to $288.6 million for full year 2022. These results were driven by treatment of new patients in existing geographies and continued geographic expansion.
  • Emflaza net product revenue was $67.4 million for the fourth quarter of 2023, compared to $58.1 million for the fourth quarter of 2022. Emflaza net product revenue was $255.1 million for full year 2023, compared to $218.3 million for full year 2022. These results were driven by new patient starts and high compliance.
  • Roche reported Evrysdi® full year 2023 sales of approximately CHF 1,419 million, resulting in full year 2023 royalty revenue of $168.9 million to PTC, as compared to $113.5 million for full year 2022. Also in the fourth quarter of 2023, PTC recorded a sales milestone of $100.0 million for the achievement of $1.5 billion in worldwide annual net sales from Evrysdi. This sales milestone was recorded as collaboration revenue.
  • Based on U.S. GAAP (Generally Accepted Accounting Principles), GAAP R&D expense was $121.4 million for the fourth quarter of 2023, compared to $188.7 million for the fourth quarter of 2022. GAAP R&D expense was $666.6 million for full year 2023, compared to $651.5 million for full year 2022. The decrease in R&D expense for the fourth quarter of 2023 reflects the strategic portfolio prioritization as the Company continues to focus its resources on its differentiated, high-potential R&D programs. The increase in R&D expense for full year 2023 is primarily due to the achievement of a $30.0 million success-based development milestone for the completion of enrollment of a Phase 3 clinical trial for sepiapterin for PKU, partially offset by the Company’s strategic portfolio prioritization.
  • Non-GAAP R&D expense was $113.2 million for the fourth quarter of 2023, excluding $8.1 million in non-cash, stock-based compensation expense, compared to $174.7 million for the fourth quarter of 2022, excluding $14.0 million in non-cash, stock-based compensation expense. Non-GAAP R&D expense was $613.6 million for full year 2023, excluding $52.9 million in non-cash, stock-based compensation expense, compared to $595.6 million for full year 2022, excluding $55.9 million in non-cash, stock-based compensation expense.
  • GAAP SG&A expense was $76.3 million for the fourth quarter of 2023, compared to $92.7 million for the fourth quarter of 2022. GAAP SG&A expense was $332.5 million for full year 2023, compared to $326.0 million for full year 2022. The decrease in SG&A expense for the fourth quarter of 2023 was primarily due to lower employee costs as a result of the reduction in workforce. The increase in SG&A expense for full year 2023 reflected the Company’s continued investment to support commercial activities, including the expanding commercial portfolio, and restructuring costs from the reduction in workforce in the year ended December 31, 2023.
  • Non-GAAP SG&A expense was $67.9 million for the fourth quarter of 2023, excluding $8.4 million in non-cash, stock-based compensation expense, compared to $79.3 million for the fourth quarter of 2022, excluding $13.4 million in non-cash, stock-based compensation expense. Non-GAAP SG&A expense was $283.8 million for full year 2023, excluding $48.7 million in non-cash, stock-based compensation expense, compared to $271.5 million for full year 2022, excluding $54.5 million in non-cash, stock-based compensation expense.
  • The intangible asset impairment was $217.8 million for full year 2023, which represented a non-cash charge. This was a result of the Company’s strategic portfolio prioritization and its decision to discontinue its preclinical and early research programs in its gene therapy platform, which included FA and AS, which was announced in May 2023. No intangible asset impairment was recorded in the fourth quarter of 2023. The intangible asset impairment was $33.4 million for the fourth quarter and full year 2022, which represented a non-cash charge related to a decrease in projected cash flows for Upstaza due to refinements in market assumptions.
  • The change in the fair value of deferred and contingent consideration was a gain of $2.7 million for the fourth quarter of 2023, compared to a loss of $6.3 million for the fourth quarter of 2022. The change in the fair value of deferred and contingent consideration was a gain of $127.7 million for full year 2023, compared to a gain of $25.9 million for full year 2022. The change in the fair value of deferred and contingent consideration was primarily related to the fair valuation of potential future consideration to be paid to former equity holders of Agilis Biotherapeutics, Inc. (Agilis) in connection with PTC’s acquisition of Agilis, which closed in August 2018. The Company’s strategic portfolio prioritization and its decision to discontinue its preclinical and early research programs in its gene therapy platform, which included FA and AS, was announced in May 2023. As a result, PTC determined the fair value for all the contingent consideration payable related to FA and AS was $0.
  • The loss on extinguishment of debt was $137.6 million for the fourth quarter of 2023 and full year 2023, compared to $0.0 million for the fourth quarter of 2022 and full year 2022. The increase was primarily due to the early termination of the Company’s Blackstone Credit Agreement, which resulted in a loss on the extinguishment of debt of $92.7 million for the period ended December 31, 2023. In addition, the Company recorded a $44.9 million loss on extinguishment of debt for the period ended December 31, 2023, relating to the A&R Royalty Purchase Agreement, which represented a non-cash charge.
  • The net loss was $155.8 million for the fourth quarter of 2023, compared to a net loss of $170.9 million for the fourth quarter of 2022. The net loss was $626.6 million for full year 2023, compared to a net loss of $559.0 million for full year 2022.
  • Cash, cash equivalents, and marketable securities was $876.7 million on December 31, 2023, compared to $410.7 million at December 31, 2022.
  • Shares issued and outstanding as of December 31, 2023, were 75,708,889.

PTC Updates Full Year 2024 Financial Guidance:

  • PTC anticipates total revenues for full year 2024 to be between $600 million and $680 million.
  • PTC anticipates GAAP R&D and SG&A expense for full year 2024 to be between $740 million and $835 million.
  • PTC anticipates Non-GAAP R&D and SG&A expense for full year 2024 to be between $660 million and $755 million, including expected R&D expense milestone payments of up to $65 million and excluding estimated non-cash, stock-based compensation expense of $80 million.
  • PTC anticipates up to $90 million of payments for full year 2024 upon achievement of potential regulatory success-based milestones from previous acquisitions, of which up to $65 million will be recorded as R&D operating expense.

About PTC Therapeutics, Inc.

PTC is a global biopharmaceutical company focused on the discovery, development and commercialization of clinically differentiated medicines that provide benefits to patients with rare disorders. PTC’s ability to globally commercialize products is the foundation that drives investment in a robust and diversified pipeline of transformative medicines and our mission to provide access to best-in-class treatments for patients who have an unmet medical need. The company’s strategy is to leverage its strong scientific expertise and global commercial infrastructure to maximize value for its patients and other stakeholders. To learn more about PTC, please visit us at www.ptcbio.com and follow us on Facebook, on Twitter at @PTCBio, and on LinkedIn.