,

PTC Therapeutics Provides Corporate Update

April 25, 2024

PTC Therapeutics, Inc., (NASDAQ: PTCT) today announced a corporate update and financial results for the first quarter ending March 31, 2024.

“We are off to a strong start in 2024, with outstanding commercial performance and achievement of all planned clinical and regulatory milestones for the first quarter,” said Matthew Klein, M.D., Chief Executive Officer, PTC Therapeutics, Inc. “We remain on track to achieve the many planned 2024 clinical and regulatory milestones, including global regulatory submissions for sepiapterin.”

Key Corporate Updates:

  • First quarter 2024 total revenue of $210 million
  • First quarter 2024 revenue for the DMD franchise was $161 million
    • Translarna™ (ataluren) net product revenue was $104 million, driven by new patients in existing geographies and continued geographic expansion.
    • Emflaza® (deflazacort) net product revenue was $57 million, resulting from new patient starts and high compliance.

Key Clinical and Regulatory Milestones:

  • PTC submitted an MAA to the EMA for sepiapterin for the treatment of PKU in March 2024. The company expects to submit an NDA to the FDA for sepiapterin no later than the third quarter of 2024 and to complete regulatory submissions in Japan and Brazil in 2024.
  • PTC submitted a BLA to the FDA for Upstaza™ for the treatment of AADC deficiency in March 2024.
  • Based on FDA feedback, PTC plans to resubmit the NDA for Translarna for the treatment of nmDMD in mid-2024.
  • Based on FDA feedback, PTC plans to submit an NDA for vatiquinone for the treatment of FA in late 2024.
  • The interim data update for the PIVOT-HD trial of PTC518 for HD patients remains on schedule for the second quarter of 2024. This update will include 12-month data on the initial group of subjects for whom data were reported in June 2023, as well as 12-week data on a larger number of stage 2 and stage 3 HD patients.
  • PTC expects to report topline data for the CardinALS trial of utreloxastat for ALS in the fourth quarter of 2024.

First Quarter 2024 Financial Highlights:

  • Total revenues were $210.1 million for the first quarter of 2024, compared to $220.4 million for the first quarter of 2023.
  • Total revenue includes net product revenue across the commercial portfolio of $177.6 million for the first quarter of 2024, compared to $187.6 million for the first quarter of 2023. Total revenue also includes collaboration, royalty, and manufacturing revenue of $32.5 million in the first quarter of 2024, compared to $32.8 million for the first quarter of 2023.
  • Translarna net product revenues were $103.6 million for the first quarter of 2024, compared to $115.1 million for the first quarter of 2023, driven by new patients in existing geographies and continued geographic expansion. The decrease was due to the timing of bulk patient orders.
  • Emflaza net product revenues were $57.5 million for the first quarter of 2024, compared to $54.6 million for the first quarter of 2023. These results were driven by new patient starts and high compliance.
  • Roche reported Evrysdi® 2024 year-to-date sales of approximately $400 million, resulting in royalty revenue of $31.2 million to PTC for the first quarter of 2024, as compared to $30.8 million for the first quarter of 2023.
  • Based on U.S. GAAP (Generally Accepted Accounting Principles), GAAP R&D expenses were $116.1 million for the first quarter of 2024, compared to $195.1 million for the first quarter of 2023. The decrease in research and development expenses reflects strategic portfolio prioritization as the Company continues to focus its resources on its differentiated, high-potential R&D programs.
  • Non-GAAP R&D expenses were $107.2 million for the first quarter of 2024, excluding $9.0 million in non-cash, stock-based compensation expense, compared to $179.8 million for the first quarter of 2023, excluding $15.3 million in non-cash, stock-based compensation expense.
  • GAAP SG&A expenses were $73.3 million for the first quarter of 2024, compared to $86.9 million for the first quarter of 2023. The decrease in selling, general and administrative expenses reflects lower employee costs as a result of the reduction in workforce in 2023.
  • Non-GAAP SG&A expenses were $63.9 million for the first quarter of 2024, excluding $9.4 million in non-cash, stock-based compensation expense, compared to $73.4 million for the first quarter of 2023, excluding $13.5 million in non-cash, stock-based compensation expense.
  • Change in the fair value of deferred and contingent consideration was a gain of $0.1 million for the first quarter of 2024, compared to a loss of $2.4 million for the first quarter of 2023.
  • The net loss was $91.6 million for the first quarter of 2024, compared to a net loss of $139.0 million for the first quarter of 2023.
  • Cash, cash equivalents, and marketable securities was $884.8 million on March 31, 2024, compared to $876.7 million on December 31, 2023.
  • Shares issued and outstanding as of March 31, 2024, were 76,653,960.

PTC Reaffirms 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 and $835 million.
  • PTC anticipates Non-GAAP R&D and SG&A expense for full year 2024 to be between $660 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.