The primary objective of this study is to assess the long-term safety of vatiquinone in participants with Friedreich ataxia (FA) previously exposed to vatiquinone.

Start Date08 Dec 2022

Sponsor / Collaborator

PTC Therapeutics, Inc.

NCT05485987 / CompletedPhase 2

An Open-Label Study to Evaluate Pharmacokinetics, Safety, and Efficacy of Vatiquinone in Children With Friedreich Ataxia Younger Than 7 Years of Age

The primary objective of the study is to assess the pharmacokinetics (PK) and safety of vatiquinone administered in participants with Friedreich ataxia (FA) younger than 7 years.

Start Date13 Oct 2022

Sponsor / Collaborator

PTC Therapeutics, Inc.

NCT05218655 / Enrolling by invitationPhase 3

An Open-Label, Safety Study for Previously Treated Vatiquinone (PTC743) Subjects With Inherited Mitochondrial Disease

The primary objective of this study is to assess the safety of vatiquinone in participants with inherited mitochondrial disease who had prior exposure to vatiquinone in a PTC/BioElectron sponsored (previously Edison) clinical study or treatment plan.
The study will continue until vatiquinone becomes commercially available or the program is terminated.

Start Date21 Jun 2022

Sponsor / Collaborator

PTC Therapeutics, Inc.

100 Clinical Results associated with Vatiquinone

100 Translational Medicine associated with Vatiquinone

100 Patents (Medical) associated with Vatiquinone

Literatures (Medical) associated with Vatiquinone

01 Nov 2024·Clinical Pharmacology in Drug Development

Lack of Concentration‐QTc Relationship and Cardiac Risk With Vatiquinone Therapeutic and Supratherapeutic Doses

Article

Author: Golden, Lee ; Darpo, Borje ; Flach, Stephen ; Kong, Ronald ; Xue, Hongqi ; Lee, Lucy ; Arivelu, Lavanya

AbstractVatiquinone, a 15‐lipoxygenase inhibitor, is in development for patients with Friedreich ataxia. The study determined the effect of vatiquinone on electrocardiogram parameters. This was a 2‐part, single‐center, randomized, double‐blinded, and placebo‐controlled study. Part 1 used an adaptive approach to identify a supratherapeutic dose, while Part 2 evaluated the effect of vatiquinone on Fridericia corrected QT interval (QTcF). A safe and tolerated supratherapeutic dose of 1400 mg was identified. Concentration‐QTcF analysis confirmed there was no statistically significant relationship between vatiquinone concentration and QTcF. QTcF effect (ie, ΔΔQTcF) exceeding 10 milliseconds was excluded for concentrations up to approximately 11,500 ng/mL. By‐time‐point analysis confirmed that least‐squares mean ΔΔQTcF was below 10 milliseconds. Largest least‐squares mean ΔΔQTcF of 1.5 milliseconds was observed at 2 hours after dosing. Vatiquinone did not have a clinically relevant effect on heart rate nor on cardiac conduction (PR interval and QRS interval). No new safety signals were found, as safety data are consistent with the known safety profile of vatiquinone. These findings altogether demonstrated that there is a minimal cardiac risk for vatiquinone concentrations up to the supratherapeutic dose level.

01 May 2023·Xenobiotica; the fate of foreign compounds in biological systems

Absorption, distribution, metabolism and excretion of ¹⁴C-vatiquinone in rats, dogs, and human subjects.

Article

Author: Kong, Ronald ; Klein, Matthew ; Ma, Jiyuan ; Yao, Bert ; Golden, Lee ; Thoolen, Martin ; Ye, Qing ; Lee, Lucy ; Giannousis, Peter

Vatiquinone is a potent inhibitor of 15-lipoxygenase and is in clinical development for the treatment of mitochondrial diseases and other disorders characterised by high levels of oxidative stress and dysregulation of energy metabolism.In rats, ¹⁴C-vatiquinone-derived radioactivity was quickly and widely distributed throughout the body and cleared from most tissues by 24 h post-dose following a single oral dose of ¹⁴C-vatiquinone.Following oral administration, 94% of dose was recovered within seven days in rats, approximately 61% of dose was recovered within seven days in dogs and approximately 93% of dose was recovered within nine days in human subjects (IND 119220). Faecal excretion was the major route (>56% dose) in all species; urinary excretion was minimal in rats and dogs (<3% dose) but was higher in humans (∼ 22% dose).Following oral administration, vatiquinone was the dominant circulating component in rats and dogs but was minor in human subjects. There were no plasma metabolites that were more than 10% of total drug related exposures in all species.Following oral administration, vatiquinone was not detectable in urine but was the most prominent component in faeces in rats, dogs, and humans.

01 Mar 2023·Clinical Pharmacology in Drug Development

Clinical Drug‐Drug Interaction Between Vatiquinone, a 15‐Lipoxygenase Inhibitor, and Rosuvastatin, a Breast Cancer Resistance Protein Substrate

Article

Author: Ma, Jiyuan ; Thoolen, Martin ; Lee, Lucy ; Murase, Katsuyuki

AbstractVatiquinone is a small‐molecule inhibitor of 15‐lipoxygenase in phase 3 development for patients with mitochondrial disease and Friedreich ataxia. The objective of this analysis was to determine the effect of vatiquinone on the pharmacokinetic profile of rosuvastatin, a breast cancer resistance protein substrate. In vitro investigations demonstrated potential inhibition of BCRP by vatiquinone (half maximal inhibitory concentration, 3.8 µM). An open‐label, fixed‐sequence drug‐drug interaction study in healthy volunteers was conducted to determine the clinical relevance of this finding. Subjects received a single dose of 20‐mg rosuvastatin followed by a 7‐day washout. On days 8 through 14, subjects received 400 mg of vatiquinone 3 times daily. On day 12, subjects concomitantly received a single dose of 20‐mg rosuvastatin. The geometric mean ratio for maximum plasma concentration was 77.8%; however, the rosuvastatin disposition phase appeared unaffected. The geometric mean ratios for the area under the plasma concentration–time curve from time 0 to time t and from time 0 to infinity were 103.2% and 99.9%, respectively. Mean rosuvastatin apparent elimination half‐life was similar between treatment groups. These results demonstrate that vatiquinone has no clinically relevant effect on the pharmacokinetics of rosuvastatin.

News (Medical) associated with Vatiquinone

07 Nov 2024

·www.prnewswire.com

PTC Therapeutics Provides Corporate Update and Reports Third Quarter 2024 Financial Results

– Strong revenue performance, supporting increase in full-year revenue guidance to $750-800 million – – Regulatory filings for sepiapterin, Translarna™ and AADC gene therapy under review by FDA – – On track to achieve remaining 2024 clinical and regulatory milestones, including NDA submission for vatiquinone – WARREN, N.J., Nov. 7, 2024 /PRNewswire/ -- PTC Therapeutics, Inc., (NASDAQ: PTCT) today announced a corporate update and financial results for the third quarter ending September 30, 2024. "I am proud of our team's strong execution," said Matthew Klein, M.D., Chief Executive Officer. "We continue to achieve excellent revenue performance allowing us to raise full-year revenue guidance. In addition, we have submitted three approval applications to FDA so far this year, all of which have been accepted for review, and plan a fourth submission for vatiquinone for Friedreich ataxia in December. We are on our way to accomplishing all of our 2024 objectives and are in a strong financial position to execute on our long-term strategic plans." Key Corporate Updates: Third quarter 2024 total revenue of $197 million Third quarter 2024 revenue for the DMD franchise was $124 million Translarna™ (ataluren) net product revenue was $72 million, driven by continued access for patients in existing geographies, continued geographic expansion, high compliance and adherence, and dose adjustments. Emflaza® (deflazacort) net product revenue was $52 million, driven by new patient starts, continued brand loyalty, high compliance and adherence, and dose adjustments. Key Clinical and Regulatory Milestones: PTC submitted an NDA to the FDA for sepiapterin for the treatment of PKU. The file was accepted for review, and the regulatory action date is set for July 29, 2025. PTC resubmitted the NDA for Translarna for the treatment of nmDMD; the file was accepted, and a regulatory action date was not provided. The BLA for PTC's gene therapy for AADC deficiency remains on schedule for a regulatory action date of November 13, 2024. PTC received Fast Track Designation for the PTC518 Huntington's disease program. PTC plans to submit an NDA for vatiquinone for the treatment of Friedreich ataxia in December 2024. PTC expects to share topline data for the CardinALS trial of utreloxastat for the treatment of ALS in the fourth quarter of 2024. Third Quarter 2024 Financial Highlights: Total revenues were $196.8 million for the third quarter of 2024, compared to $196.6 million for the third quarter of 2023. Total revenue includes net product revenue across the commercial portfolio of $135.4 million for the third quarter of 2024, compared to $144.0 million for the third quarter of 2023. Total revenue also includes royalty and manufacturing revenue of $61.4 million in the third quarter of 2024, compared to $52.5 million for the third quarter of 2023. Translarna net product revenues were $72.3 million for the third quarter of 2024, compared to $69.0 million for the third quarter of 2023. Emflaza net product revenues were $51.9 million for the third quarter of 2024, compared to $67.4 million for the third quarter of 2023. Roche reported Evrysdi® 2024 year-to-date sales of approximately CHF 1.2 billion, resulting in royalty revenue of $61.4 million to PTC for the third quarter of 2024, compared to $50.2 million for the third quarter of 2023. Based on U.S. GAAP (Generally Accepted Accounting Principles), GAAP R&D expenses were $161.4 million for the third quarter of 2024, compared to $164.2 million for the third quarter of 2023. The decrease in research and development expenses reflects strategic portfolio prioritization, as PTC continues to focus its resources on its differentiated, high-potential R&D programs. Included in third quarter 2024 R&D expense is $50.0 million in regulatory success-based milestones related to the Censa acquisition. Non-GAAP R&D expenses were $152.0 million for the third quarter of 2024, excluding $9.4 million in non-cash, stock-based compensation expense, compared to $150.2 million for the third quarter of 2023, excluding $14.0 million in non-cash, stock-based compensation expense. GAAP SG&A expenses were $73.5 million for the third quarter of 2024, compared to $80.9 million for the third 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 $63.1 million for the third quarter of 2024, excluding $10.3 million in non-cash, stock-based compensation expense, compared to $67.9 million for the third quarter of 2023, excluding $13.0 million in non-cash, stock-based compensation expense. Change in the fair value of deferred and contingent consideration was a loss of $0.7 million for the third quarter of 2024, compared to a loss of $1.5 million for the third quarter of 2023. Tangible asset impairment and losses (gains) on transactions, net, was a loss of $1.8 million for the third quarter of 2024, compared to $0.0 million for the third quarter of 2023. These results were primarily related to fixed asset impairments. Net loss was $106.7 million for the third quarter of 2024, compared to net loss of $133.0 million for the third quarter of 2023. Cash, cash equivalents, and marketable securities was $1,013.4 million on September 30, 2024, compared to $876.7 million on December 31, 2023. Shares issued and outstanding as of September 30, 2024, were 76,952,124. PTC Updates Full Year 2024 Financial Guidance: PTC anticipates total revenues for full year 2024 to be between $750 million and $800 million. PTC anticipates GAAP R&D and SG&A expenses for full year 2024 to be between $740 million and $835 million, including expected R&D expense milestone payments of up to $65 million. PTC anticipates non-GAAP R&D and SG&A expenses 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 expenses. As of September 30, 2024, $85 million in milestones have been achieved, of which $65 million has been recorded as R&D operating expenses and $20 million as contingent consideration payable. Non-GAAP Financial Measures: In this press release, the financial results of PTC are provided in accordance with GAAP and using certain non-GAAP financial measures. In particular, the non-GAAP R&D and SG&A expense financial measures exclude non-cash, stock-based compensation expense. These non-GAAP financial measures are provided as a complement to financial measures reported in GAAP because management uses these non-GAAP financial measures when assessing and identifying operational trends. In management's opinion, these non-GAAP financial measures are useful to investors and other users of PTC's financial statements by providing greater transparency into the historical and projected operating performance of PTC and the company's future outlook. Non-GAAP financial measures are not an alternative for financial measures prepared in accordance with GAAP. Quantitative reconciliations of the non-GAAP financial measures to their respective closest equivalent GAAP financial measures are included in the table below. Acronyms: AADC: Aromatic l-Amino Acid Decarboxylase ALS: Amyotrophic Lateral Sclerosis BLA: Biologics License Application CHF: Confoederatio Helvetica Francs (Swiss francs) DMD: Duchenne Muscular Dystrophy FA: Friedreich Ataxia FDA: U.S. Food and Drug Administration GAAP: Generally Accepted Accounting Principles HD: Huntington's Disease NDA: New Drug Application nmDMD: Nonsense Mutation Duchenne Muscular Dystrophy PKU: Phenylketonuria R&D: Research and Development SG&A: Selling, General, and Administrative Today's Conference Call and Webcast Reminder: To access the call by phone, please click here to register and you will be provided with dial-in details. To avoid delays, we recommend participants dial in to the conference call 15 minutes prior to the start of the call. The webcast conference call can be accessed on the Investor section of the PTC website at . A replay of the call will be available approximately two hours after completion of the call and will be archived on the company's website for 30 days following the call. 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 children and adults living 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 and follow us on Facebook, X, and LinkedIn. For More Information: Investors: Ellen Cavaleri +1 (615) 618-6228 [email protected] Media: Jeanine Clemente +1 (908) 912-9406 [email protected] Forward-Looking Statements: This press release contains forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995. All statements contained in this release, other than statements of historic fact, are forward-looking statements, including the information provided under the heading "PTC Updates Full Year 2024 Financial Guidance", including with respect to (i) 2024 total revenue guidance, (ii) 2024 GAAP and non-GAAP R&D and SG&A expense guidance and (iii) 2024 acquisition related milestone payment guidance, and statements regarding: the future expectations, plans and prospects for PTC, including with respect to the expected timing of clinical trials and studies, availability of data, regulatory submissions and responses, commercialization and other matters with respect to its products and product candidates; PTC's strategy, future operations, future financial position, future revenues, projected costs; the extent, timing and financial aspects of our strategic pipeline prioritization and reductions in workforce; and the objectives of management. Other forward-looking statements may be identified by the words, "guidance", "plan," "anticipate," "believe," "estimate," "expect," "intend," "may," "target," "potential," "will," "would," "could," "should," "continue," and similar expressions. PTC's actual results, performance or achievements could differ materially from those expressed or implied by forward-looking statements it makes as a result of a variety of risks and uncertainties, including those related to: the outcome of pricing, coverage and reimbursement negotiations with third party payors for PTC's products or product candidates that PTC commercializes or may commercialize in the future; PTC's ability to maintain its marketing authorization of Translarna for the treatment of nmDMD in Brazil, Russia, the European Economic Area (EEA) and other regions, including whether the European Commission adopts the negative opinion from the Committee for Medicinal Products for Human Use (CHMP) for the conditional marketing authorization for Translarna in the EEA, or PTC's ability to identify other potential mechanisms by which it may provide Translarna to nmDMD patients in the EEA; PTC's ability to use the clinical data from its international drug registry study and real-world evidence concerning Translarna's benefits to support a continued marketing authorization for Translarna for the treatment of nmDMD in the EEA; PTC's ability to use the results of Study 041, a randomized, 18-month, placebo-controlled clinical trial of Translarna for the treatment of nmDMD followed by an 18-month open-label extension, and from its international drug registry study to support a marketing approval for Translarna for the treatment of nmDMD in the United States; whether investigators agree with PTC's interpretation of the results of clinical trials and the totality of clinical data from its trials in Translarna; expectations with respect to Upstaza, including any regulatory submissions and potential approvals, commercialization, manufacturing capabilities, the potential achievement of development, regulatory and sales milestones and contingent payments that PTC may be obligated to make; expectations with respect to sepiapterin, including any regulatory submissions and potential approvals, commercialization, the potential achievement of development, regulatory and sales milestones and contingent payments that PTC may be obligated to make; expectations with respect to the commercialization of Evrysdi under PTC's SMA collaboration; expectations with respect to the commercialization of Tegsedi and Waylivra; the timing of and actual expenses incurred in connection with the discontinuation of PTC's preclinical and early research programs in gene therapy and reductions in workforce, which may be in different periods and may be materially higher than estimated; the savings that may result from the discontinuation of PTC's strategic pipeline prioritization and reductions in workforce, which may be materially less than expected; significant business effects, including the effects of industry, market, economic, political or regulatory conditions; changes in tax and other laws, regulations, rates and policies; the eligible patient base and commercial potential of PTC's products and product candidates; PTC's scientific approach and general development progress; PTC's ability to satisfy its obligations under the terms of its lease agreements; the sufficiency of PTC's cash resources and its ability to obtain adequate financing in the future for its foreseeable and unforeseeable operating expenses and capital expenditures; and the factors discussed in the "Risk Factors" section of PTC's most recent Annual Report on Form 10-K, as well as any updates to these risk factors filed from time to time in PTC's other filings with the SEC. You are urged to carefully consider all such factors. As with any pharmaceutical under development, there are significant risks in the development, regulatory approval and commercialization of new products. There are no guarantees that any product will receive or maintain regulatory approval in any territory, or prove to be commercially successful, including Translarna, Emflaza, Upstaza, Evrysdi, Tegsedi, Waylivra or sepiapterin. The forward-looking statements contained herein represent PTC's views only as of the date of this press release and PTC does not undertake or plan to update or revise any such forward-looking statements to reflect actual results or changes in plans, prospects, assumptions, estimates or projections, or other circumstances occurring after the date of this press release except as required by law. SOURCE PTC Therapeutics, Inc. 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Financial StatementNDA

25 Apr 2024

·www.prnewswire.com

PTC Therapeutics Provides Corporate Update and Reports First Quarter 2024 Financial Results

– Strong revenue performance across product portfolio – – Submitted MAA for sepiapterin and BLA for Upstaza – – On target to achieve remaining 2024 clinical and regulatory milestones, including global submissions for sepiapterin – WARREN, N.J., April 25, 2024 /PRNewswire/ -- 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. Non-GAAP Financial Measures: In this press release, the financial results of PTC are provided in accordance with GAAP and using certain non-GAAP financial measures. In particular, the non-GAAP R&D and SG&A expense financial measures exclude non-cash, stock-based compensation expense. These non-GAAP financial measures are provided as a complement to financial measures reported in GAAP because management uses these non-GAAP financial measures when assessing and identifying operational trends. In management's opinion, these non-GAAP financial measures are useful to investors and other users of PTC's financial statements by providing greater transparency into the historical and projected operating performance of PTC and the company's future outlook. Non-GAAP financial measures are not an alternative for financial measures prepared in accordance with GAAP. Quantitative reconciliations of the non-GAAP financial measures to their respective closest equivalent GAAP financial measures are included in the table below. Acronyms: AADC: Aromatic l-Amino Acid Decarboxylase ALS: Amyotrophic Lateral Sclerosis BLA: Biologics License Application CHF: Confoederatio Helvetica Francs (Swiss francs) DMD: Duchenne Muscular Dystrophy EMA: European Medicines Agency FA: Friedreich Ataxia FDA: U.S. Food and Drug Administration GAAP: Generally Accepted Accounting Principles HD: Huntington's Disease MAA: Marketing Authorization Application NDA: New Drug Application nmDMD: Nonsense Mutation Duchenne Muscular Dystrophy PKU: Phenylketonuria R&D: Research and Development SG&A: Selling, General, and Administrative Today's Conference Call and Webcast Reminder: To access the call by phone, please click here to register and you will be provided with dial-in details. To avoid delays, we recommend participants dial in to the conference call 15 minutes prior to the start of the call. The webcast conference call can be accessed on the Investor section of the PTC website at . A replay of the call will be available approximately two hours after completion of the call and will be archived on the company's website for 30 days following the call. 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 and follow us on Facebook, on Twitter at @PTCBio, and on LinkedIn. For More Information: Investors: Kylie O'Keefe +1 (908) 300-0691 [email protected] Media: Jeanine Clemente +1 (908) 912-9406 [email protected] Forward-Looking Statements: This press release contains forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995. All statements contained in this release, other than statements of historic fact, are forward-looking statements, including the information provided under the heading "PTC Reaffirms Full Year 2024 Revenue Guidance", including with respect to (i) 2024 total revenue guidance, (ii) 2024 GAAP and non-GAAP R&D and SG&A expense guidance and (iii) 2024 acquisition related milestone payment guidance, and statements regarding: the future expectations, plans and prospects for PTC, including with respect to the expected timing of clinical trials and studies, availability of data, regulatory submissions and responses, commercialization and other matters with respect to its products and product candidates; PTC's strategy, future operations, future financial position, future revenues, projected costs; the extent, timing and financial aspects of our strategic pipeline prioritization and reductions in workforce; and the objectives of management. Other forward-looking statements may be identified by the words, "guidance", "plan," "anticipate," "believe," "estimate," "expect," "intend," "may," "target," "potential," "will," "would," "could," "should," "continue," and similar expressions. PTC's actual results, performance or achievements could differ materially from those expressed or implied by forward-looking statements it makes as a result of a variety of risks and uncertainties, including those related to: the outcome of pricing, coverage and reimbursement negotiations with third party payors for PTC's products or product candidates that PTC commercializes or may commercialize in the future; PTC's ability to maintain its marketing authorization of Translarna for the treatment of nmDMD in Brazil, Russia, the European Economic Area (EEA) and other regions, including whether the European Commission adopts the negative opinion from the Committee for Medicinal Products for Human Use (CHMP) for the conditional marketing authorization for Translarna in the EEA; PTC's ability to use the results of Study 041, a randomized, 18-month, placebo-controlled clinical trial of Translarna for the treatment of nmDMD followed by an 18-month open-label extension, and from its international drug registry study to support a marketing approval for Translarna for the treatment of nmDMD in the United States; whether investigators agree with PTC's interpretation of the results of clinical trials and the totality of clinical data from our trials in Translarna; expectations with respect to Upstaza, including any regulatory submissions and potential approvals, commercialization, manufacturing capabilities, the potential achievement of development, regulatory and sales milestones and contingent payments that PTC may be obligated to make; expectations with respect to the commercialization of Evrysdi under our SMA collaboration; expectations with respect to the commercialization of Tegsedi and Waylivra; the timing of and actual expenses incurred in connection with the discontinuation of PTC's preclinical and early research programs in gene therapy and reductions in workforce, which may be in different periods and may be materially higher than estimated; the savings that may result from the discontinuation of PTC's strategic pipeline prioritization and reductions in workforce, which may be materially less than expected; significant business effects, including the effects of industry, market, economic, political or regulatory conditions; changes in tax and other laws, regulations, rates and policies; the eligible patient base and commercial potential of PTC's products and product candidates; PTC's scientific approach and general development progress; the potential financial impact and benefits of PTC's leased biologics manufacturing facility; PTC's ability to satisfy its obligations under the terms of its lease agreements, including for its leased biologics manufacturing facility; the sufficiency of PTC's cash resources and its ability to obtain adequate financing in the future for its foreseeable and unforeseeable operating expenses and capital expenditures; and the factors discussed in the "Risk Factors" section of PTC's most recent Quarterly Report on Form 10-Q and Annual Report on Form 10-K, as well as any updates to these risk factors filed from time to time in PTC's other filings with the SEC. You are urged to carefully consider all such factors. As with any pharmaceutical under development, there are significant risks in the development, regulatory approval and commercialization of new products. There are no guarantees that any product will receive or maintain regulatory approval in any territory, or prove to be commercially successful, including Translarna, Emflaza, Upstaza, Evrysdi, Tegsedi or Waylivra. The forward-looking statements contained herein represent PTC's views only as of the date of this press release and PTC does not undertake or plan to update or revise any such forward-looking statements to reflect actual results or changes in plans, prospects, assumptions, estimates or projections, or other circumstances occurring after the date of this press release except as required by law. SOURCE PTC Therapeutics, Inc.

Financial StatementNDA

01 Mar 2024

·www.fiercebiotech.com

After pair of failures, PTC finds a path through FDA jungle for Friedreich ataxia med

After the FA failure, announced in May 2023, PTC cut staff and conducted a pipeline prioritization. Then in June, vatiquinone failed again in MDAS, causing PTC to move on from the indication. PTC Therapeutics has managed to slash through the regulatory jungle to find a path forward for Friedreich ataxia med vatiquinone after a pair of failures last year left the biotech reeling. In a fourth-quarter earnings update Thursday afternoon, PTC executives briefed investors on the results of a type C meeting with the FDA where they pled their case for using a subscale called upright stability to show efficacy using data already collected in the phase 3 MOVE-FA trial. FA is a rare degenerative disease that causes damage to the spinal cord, peripheral nerves and cerebellum region of the brain. The condition develops in children and teens and gets worse over time, leading to awkward movements and a loss of sensation. PTC’s candidate for the disorder failed to move the needle on the modified Friedreich Ataxia Rating Scale (mFARS), which measures disease progression. The therapy had little impact on the lower and upper limbs, which led to the failure. Despite the primary endpoint miss, PTC saw a glimmer of efficacy in the data, pointing to the upright stability subscales. That’s what executives took to the FDA meeting earlier this year, arguing that this data could be used for a new drug application. CEO Matthew Klein, M.D., explained that since the MOVE-FA study started, there has been an advancement in the understanding of FA and the importance of the upright stability on an ambulant adolescent population. Even an FDA-funded study has shown that, so PTC took the agency’s own evidence to the meetings, he noted. “We demonstrated significant benefits on the only thing you possibly could show significant benefit on disease progression, and that's the upright stability scale,” Klein said. Discussions are continuing on the NDA, as well as whether the FDA will accept the application for a regular approval or on an accelerated basis. But after a bleak year and the double failures of vatiquinone in FA as well as a rare seizure disorder called mitochondrial disease-associated seizures (MDAS), PTC now has a path forward. “What we're most excited about, obviously, is being able to have the potential to submit an NDA based on the MOVE-FA study and what is still a significant unmet need for pediatric and adolescent Friedreich ataxia patients,” Klein said. PTC is expecting to file the NDA for vatiquinone in late 2024. Klein said an open-label trial is currently ongoing, which will be used to support the package and could also provide confirmatory evidence if the FDA agrees to the accelerated review. For that type of approval, companies can get an advanced go-ahead to market a drug based on biomarker data but must later provide confirmatory evidence to show benefit. After the FA failure, announced in May 2023, PTC cut staff and conducted a pipeline prioritization. Then in June, vatiquinone failed again in MDAS, causing PTC to move on from the indication. Beyond vatiquinone, PTC has a number of approved products and is planning to file an NDA for sepiapterin in phenylketonuria by the end of the third quarter this year. Enrollment is also underway for the phase 2 PIVOT-HD trial of PTC518 in Huntington's disease. Twelve-month interim data from that trial is expected in the second quarter.

NDAPhase 2Phase 3

100 Deals associated with Vatiquinone

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D10407	-	-	DB11917

R&D Status

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Indication	Highest Phase	Country/Location	Organization	Date
Diffuse Cerebral Sclerosis of Schilder	Phase 1	IT	PTC Therapeutics, Inc.	28 Sep 2020
Diffuse Cerebral Sclerosis of Schilder	Phase 1	CA	PTC Therapeutics, Inc.	28 Sep 2020
Diffuse Cerebral Sclerosis of Schilder	Phase 1	PL	PTC Therapeutics, Inc.	28 Sep 2020
Diffuse Cerebral Sclerosis of Schilder	Phase 1	ES	PTC Therapeutics, Inc.	28 Sep 2020
Diffuse Cerebral Sclerosis of Schilder	Phase 1	JP	PTC Therapeutics, Inc.	28 Sep 2020
Diffuse Cerebral Sclerosis of Schilder	Phase 1	FR	PTC Therapeutics, Inc.	28 Sep 2020
Diffuse Cerebral Sclerosis of Schilder	Phase 1	GB	PTC Therapeutics, Inc.	28 Sep 2020
Diffuse Cerebral Sclerosis of Schilder	Phase 1	US	PTC Therapeutics, Inc.	28 Sep 2020
Diffuse Cerebral Sclerosis of Schilder	Phase 1	SE	PTC Therapeutics, Inc.	28 Sep 2020
Leigh Disease	Phase 1	JP	Sumitomo Pharma Co., Ltd.	-

Clinical Result

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Study	Phase	Population	Analyzed Enrollment	Group	Results	Evaluation	Publication Date


NCT01642056 (CTgov)	Phase 1/2	Mitochondrial Diseases \| Muscular Diseases	20	Placebo+EPI-743 (EPI-743, Then Placebo)	bghdjmjiia(vtwcfknqes) = bqhactdgzb kocorejorq (nvouitxznd, vpuzvibckp - neissiiwdn) View more	-	14 Apr 2021
				Placebo+EPI-743 (Placebo, Then EPI-743)	bghdjmjiia(vtwcfknqes) = imlddjqmwp kocorejorq (nvouitxznd, dcplwnidbh - kqzmeoxhii) View more
I1.012 (AAN2016)	Phase 2	glutamine/glutamate levels	10	EPI-743 200 mg TID	lzyvmwudcf(gadghecckk) = ecqdrlyeva alllnogdfe (jcgsxgnsqj )	Positive	05 Apr 2016
				EPI-743 400 mg TID	lzyvmwudcf(gadghecckk) = askiompedt alllnogdfe (jcgsxgnsqj )
AAN2016	Phase 2	-	10	EPI-743 200 mg TID	zwcjimxzpo(psehifyizj) = lfwkatrhlk bxsitjcpkc (zuspmdxobl )	Positive	05 Apr 2016
				EPI-743 400 mg TID	zwcjimxzpo(psehifyizj) = jjkxxzlzpa bxsitjcpkc (zuspmdxobl )
P5.388 (AAN2016)	Not Applicable	Friedreich Ataxia	3	EPI-743 400mg PO TID	(vqmaebfiem) = No serious adverse events, including hematologic or cardiac, were observed ftpgtolfcu (qevajewsjn )	Positive	05 Apr 2016
EPI-743 (ARVO2013)	Not Applicable	Optic Atrophy, Hereditary, Leber Neuron specific enolase (NSE)	12	LHON patients receiving EPI-743	gvbmbalomd(ijbdvpefhq) = kiqlcvscbk guhnzydqow (eanbawpmqo, 6.21 - 12.64)	Positive	01 Jun 2013
				EPI-743	gvbmbalomd(ijbdvpefhq) = ruwvycawnk guhnzydqow (eanbawpmqo )

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