Inhibikase Therapeutics Announces Second Quarter 2025 Financial Results and Highlights Recent Activity

About this update from Inhibikase Therapeutics, Inc.

BOSTON , ATLANTA - Inhibikase Therapeutics, Inc. (Nasdaq: IKT) (' Inhibikase ' or 'Company'), a clinical-stage pharmaceutical company developing therapeutics to modify the course of cardiopulmonary diseases namely, Pulmonary Arterial Hypertension ('PAH'), reported financial results for the quarter ended June 30, 2025 and highlighted recent developments. 'During our second quarter of 2025, we continued to position the Company to advance IKT-001 toward a late-stage clinical trial in PAH,' said Mark Iwicki , Chief Executive Officer of Inhibikase . 'We have now finalized our study protocol, and we expect to initiate our Phase 2b clinical study of IKT-001, our re-engineered prodrug of imatinib mesylate, in PAH in the second half of 2025.' Multiple studies including both Phase 2 and the Phase 3 IMPRES study previously demonstrated that imatinib mesylate ('imatinib'), an anti-proliferative tyrosine kinase inhibitor, was highly efficacious in PAH. Notably in the IMPRES study, patients that maintained 400 mg of imatinib for greater than 50% of the treatment period showed a placebo adjusted 45-meter improvement in 6-minute walk distance ('6MWD') which represents best-in-class improvements for patients afflicted by PAH. More recently, a contemporary study in the American Journal of Respiratory and Critical Care Medicine demonstrated that higher exposures of imatinib were associated with a larger improvement in total pulmonary resistance ('TPR'). The 400 mg dose of imatinib exhibited the greatest impact on TPR and, even though the majority of patients completed the study at 200 mg or less, the magnitude of the hemodynamic change for the study was noted to compare favorably with recent studies of novel therapies added to background treatment. The Company believes this supports its thesis that IKT-001 has the potential to minimize GI side effects while maximizing the highly efficacious outcomes observed at 400 mg across multiple studies. Recent Developments Advancement of IKT-001 as a therapy in PAH During the first half of 2025, the Company evaluated potential study designs and obtained feedback from various key opinion leaders before finalizing a clinical study protocol for its forthcoming Phase 2b study, known as IMPROVE-PAH. IMPROVE-PAH is a multi-center, randomized, double-blind, placebo-controlled study of approximately 150 PAH participants. Participants under IMPROVE-PAH will be randomized 1:1:1 to receive 300 mg IKT-001, 500 mg IKT-001, or placebo once daily for 26 weeks, in addition to stable background PAH therapy. The Company's bioequivalence studies previously confirmed that 500 mg of IKT-001 has comparable exposure in humans to 380 mg of imatinib. The primary efficacy endpoint is change in pulmonary vascular resistance at Week 26. Secondary endpoints include 6MWD, World Health Organization functional class, and pharmacokinetics. The study protocol also includes an interim safety review for study continuance by the Data Safety Monitoring Board with at least 50 patients at 12-weeks of follow-up. The Company expects to initiate IMPROVE-PAH in the second half of 2025. Financial Results Cash Position: As of June 30, 2025 , cash, cash equivalents and marketable securities were $87.7 million as compared to $97.5 million as of December 31, 2024 . Net Loss: Net loss for the quarter ended June 30, 2025 , was $9.9 million , or $0.11 per share, compared to a net loss of $5.0 million , or $0.66 per share in the quarter ended June 30, 2024 . Net loss for the six months ended June 30, 2025 , was $23.6 million , or $0.26 per share, compared to a net loss of $9.6 million , or $1.38 per share, for the six months ended June 30, 2024 . R&D Expenses: Research and development expenses were $5.3 million for the quarter ended June 30, 2025 , compared to $3.1 million for the quarter ended June 30, 2024 . Research and development expenses were $15.8 million for the six months ended June 30, 2025 , which includes a non-cash write-off of in-process research and development of $7.4 million and $1.0 million of stock-based compensation expense, both associated with the Company's acquisition of CorHepta in February 2025 , compared to $5.8 million for the six months ended June 30, 2024 . SG&A Expenses: Selling, general and administrative expenses for the quarter ended June 30, 2025 were $5.9 million , compared to $2.0 million for the quarter ended June 30, 2024 . Selling, general and administrative expenses for the six months ended June 30, 2025 were $11.2 million , which includes $1.0 million of severance expenses resulting from the transition of senior executives in the Company during the year, compared to $4.0 million for the six months ended June 30, 2024 . About Inhibikase (www.inhibikase.com) Inhibikase Therapeutics, Inc. (Nasdaq: IKT) is a clinical-stage pharmaceutical company developing therapeutics to modify the course of cardiopulmonary diseases namely, PAH, that arise from aberrant signaling through the Abelson Tyrosine Kinase, and type III receptor tyrosine kinases including platelet derived growth factor receptors and c-KIT. Our lead product candidate is IKT-001, a prodrug of imatinib mesylate, for PAH which is an orphan indication. PAH is a progressive, life-threatening disease characterized by pulmonary vascular remodeling and elevated pulmonary vascular resistance that affects approximately 50,000 Americans. Forward-Looking Statements This press release contains 'forward-looking statements' within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking terminology such as 'believes,' 'expects,' 'may,' 'will,' 'should,' 'anticipates,' 'plans,' or similar expressions or the negative of these terms and similar expressions are intended to identify forward-looking statements. These forward-looking statements include, but are not limited to, statements that express the Company's intentions, beliefs, expectations, strategies, predictions or any other statements related to the potential effects of IKT-001, the initiation of the Company's Phase 2b trial of IKT-001 in PAH and the Company's future activities, or future events or conditions. These forward-looking statements are based on Inhibikase's current expectations and assumptions. Such statements are subject to certain risks and uncertainties, which could cause Inhibikase's actual results to differ materially from those anticipated by the forward-looking statements. Important factors that could cause actual results to differ materially from those in the forward-looking statements include our ability to commence and execute a Phase 2b trial to evaluate IKT-001 as a treatment for PAH, as well as such other factors that are included in our periodic reports on Form 10-K and Form 10-Q that we file with the U.S. Securities and Exchange Commission . Any forward-looking statement in this release speaks only as of the date of this release. Inhibikase undertakes no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by any applicable securities laws. Contact: Michael Moyer Email: [email protected] (C) 2025 Electronic News Publishing, source ENP Newswire

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