P2X3 receptor

-- IkT-001Pro to be developed as a New Molecular Entity as the first oral, potentially disease-modifying treatment for a rapidly fatal disease primarily afflicting women between the ages of 30 and 60 -- Oct. 21, 2024 -- Inhibikase Therapeutics, Inc. (Nasdaq: IKT) (“Inhibikase” or “Company”), a clinical-stage pharmaceutical company developing protein kinase inhibitor therapeutics to modify the course of Cardiopulmonary and Neurodegenerative disease through Abelson Tyrosine Kinase inhibition, today announced the closing of a private placement of approximately $110 Million from the issuance and sale of shares of the Company’s common stock and accompanying warrants with potential aggregate financing of up to approximately $275 Million upon the full cash exercise of the warrants issued in the private placement, before deducting placement agent fees and offering expenses. The financing will fund execution of the Phase 2b ‘702’ trial in Pulmonary Arterial Hypertension (PAH) and for general corporate purposes. “This transformational financing for Inhibikase is a testament to the Company’s persistent scientific and medical focus to develop disease-modifying therapeutics that could improve the lives of millions of patients afflicted with cardiopulmonary and neurodegenerative diseases,” noted Dr. Milton Werner, President and Chief Executive of Inhibikase. “Imatinib, the active ingredient in IkT-001Pro, had previously been shown to provide significant clinical benefit and improve heart health as an oral, once a day therapy, albeit with an unacceptable safety and tolerability profile. We believe imatinib delivered as IkT-001Pro has the potential to ameliorate the safety and tolerability profile that precluded approval of imatinib more than 10 years ago. With this investment, top tier dedicated healthcare investment funds recognized the potential of IkT-001Pro to improve the lives of patients afflicted with PAH. As with risvodetinib in Parkinson’s-related diseases, IkT-001Pro is a product of the Company’s innovative medicinal chemistry program that designs and develops novel kinase inhibitor therapeutics.” Concurrent with the closing of this financing, three highly accomplished leaders in biopharmaceutical development and a Partner of Soleus Capital with deep experience in financing cardiopulmonary therapeutics development will join the Board of Directors at the closing of this transaction. Roberto Bellini (former Chief Executive of BELLUS Health Inc. and current Managing Partner of BSQUARED Capital), Amit Munshi (current Chief Executive of Orna Therapeutics and former CEO of Arena Pharmaceuticals), Arvind Kush (current CFO of Candid Therapeutics and former CFO of RayzeBio) and David Canner (Partner at Soleus Capital) have been appointed to the Inhibikase Board of Directors. In addition to joining the Board of Directors, Messers. Bellini, Munshi and Kush will each participate in the transaction. Mr. Bellini has been appointed Independent Chairperson of the Inhibikase Board coincident with the closing. In addition to these new Board members, Ms. Gisele Dion, Chair of the Audit Committee and Dr. Paul Grint, Chair of the Compensation Committee, have resigned from their service on the Board. The Company is grateful for their dedicated service, their thoughtful guidance and efforts that were an integral part of the program advancements leading to this investment. “I am excited about IkT-001Pro as a potential treatment for PAH patients,” noted Mr. Bellini. “I look forward to leveraging my recent experience at BELLUS Health to support the company’s strategic growth.” “I want to express my excitement to join the Inhibikase Board at this transformative moment for the company,” said Mr. Munshi. “Inhibikase, under Dr. Werner’s leadership, is poised to create a fundamental shift in the lives of patients suffering from these debilitating and fatal diseases,” said Mr. Munshi. “This financing is an important milestone for Inhibikase, and I’m thrilled to be joining the Board,” added Mr. Kush. “The capital from top tier investors is transformative and will enable the rapid development of IkT-001Pro for PAH.” Roberto Bellini is currently a Managing Partner at BSQUARED Capital, a family office biotech fund. He previously served as President and CEO of BELLUS Health between January 2010 and July 2023. Under his leadership BELLUS Health developed camlipixant, a P2X3 antagonist for chronic cough from preclinical to Phase 3. BELLUS Health was subsequently acquired by GSK plc in 2023. Mr. Bellini holds a Bachelor of Science in Biochemistry from McGill University. Amit Munshi is a 30-year industry veteran who is currently Chief Executive Officer of Orna Therapeutics and former President, Chief Executive Officer and board member of ReNAgade Therapeutics. Previously Mr. Munshi served as President and CEO of Arena Pharmaceuticals Inc., which was subsequently sold to Pfizer, Inc. Arvind Kush, the Chief Financial and Chief Business Officer of Candid Therapeutics, has over 15 years of finance and investment banking experience. Prior to Candid, Arvind was Chief Financial Officer at RayzeBio, where he helped the company raise over $160 million in a private financing in 2022, complete its $350+ million IPO in 2023 and close its $4.1B acquisition Bristol Meyers Squibb in February 2024. Arvind holds a Bachelor in Engineering in Computer Science from Visvesvaraya Technological University and an MBA from Goizueta Business School, Emory University. David Canner is a Partner at Soleus Capital. David has served on the board for a number of companies. Prior to joining Soleus in 2018, David completed his PhD at MIT in Biology after finishing his undergraduate studies at Princeton University where he received a BA in Chemistry. IkT-001Pro is a prodrug formulation of imatinib mesylate and has been developed to improve the safety of the first FDA-approved Abelson (Abl) kinase inhibitor, imatinib (originally marketed as Gleevec®). Imatinib is commonly taken for hematological and gastrointestinal cancers that arise from Abl kinase mutations found in the bone marrow or for gastrointestinal cancers that arise from c-Kit and/or PDGFRa/b mutations in the stomach; c-Kit, PDGFRa/b and Abl are all members of the Abelson Tyrosine Kinase protein family. In a previously published Phase 3 trial (the IMPRES trial, published in 2013 in the journal Circulation, volume 127, pages 1128-1138), imatinib was shown to induce a clinically meaningful improvement in 6 minute walking distance (6MWD) of approximately 40 meters and reduce pulmonary vascular resistance by more than 300 dyne-sec/cm, improve other measures of heart health and approximately 30% of participants actually got better with imatinib added to their standard-of-care at a dose of 400 mg once daily. IkT-001Pro has the potential to be a safer, better tolerated alternative for imatinib therapy in patients with PAH. In preclinical studies, IkT-001Pro was shown to be as much as 3.4 times safer and/or better tolerated than imatinib in non-human primates, reducing burdensome gastrointestinal and other on-dosing side effects that occur following oral administration. The 702 trial evaluating IkT-001Pro in PAH was IND-cleared for clinical entry at Phase 2b by the FDA on September 9, 2024. Imatinib delivered as IkT-001Pro was granted Orphan Drug Designation for Stable-Phase CML in 2018, and Orphan Drug Designation is presently under review for PAH. The securities (including the shares of common stock underlying the pre-funded warrants and warrants) were offered in a private placement under Section 4(a)(2) of the Securities Act of 1933, as amended (the “Securities Act”) and have not been registered under the Securities Act, or any state or other applicable jurisdictions’ securities laws, and may not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements of the Securities Act and applicable state or other jurisdictions’ securities laws. This press release shall not constitute an offer to sell or a solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such state or other jurisdiction. Any offering of the securities under the resale registration statement will only be made by means of a prospectus. Inhibikase Therapeutics, Inc. (Nasdaq: IKT) is a clinical-stage pharmaceutical company developing Abelson Tyrosine Kinase inhibitor therapeutics for Cardiopulmonary and Neurodegenerative disease. Inhibikase's multi-therapeutic pipeline includes its neurodegenerative disease portfolio led by risvodetinib in Parkinson’s disease, Multiple System Atrophy and other diseases that may arise from alpha-synuclein aggregate formation. Inhibikase’s cardiopulmonary disease portfolio is led by IkT-001Pro, a prodrug of imatinib mesylate, for Pulmonary Arterial Hypertension that will deliver imatinib in a form that the Company believes will provide a better patient experience with fewer on-dosing side-effects. The Company's RAMP™ medicinal chemistry program has identified several follow-on compounds to risvodetinib that could potentially be applied to other cognitive and motor function diseases of the brain. Inhibikase is headquartered in Atlanta, Georgia with offices in Lexington, Massachusetts. The content above comes from the network. if any infringement, please contact us to modify.

Strong bitterness is the main reason why people all over the world, especially children, avoid taking their medicines, putting their health, and sometimes, their lives at risk. Now, a group of scientists has identified the first temporary, universal taste blocker that works in people. Many people, especially children and the elderly, have difficulty swallowing pills. Liquid forms of many medicines taste extremely bitter and are often rejected. Put simply, strong bitterness is the main reason why people all over the world, especially children, avoid taking their medicines, putting their health, and sometimes, their lives at risk. Now, a group of scientists at the Monell Chemical Senses Center identified the first temporary, universal taste blocker that works in people. Their findings appear in the British Journal of Pharmacology. "Remarkably, and unlike our experience with blockers of bitter taste receptors, the taste-nerve blocker we tested worked for every subject and every bitter compound we tested," said first author Linda J. Flammer, PhD, Monell Senior Research Associate and Director of the Corporate Partners Program. "I have never seen this before." Until now, efforts to block bitterness in foods and medicines have focused on finding blockers for bitter taste receptors on the tongue. Because different medications activate distinct sets of bitter taste receptors, targeting specific receptors may only suppress bitterness for certain, but not all, bitter-tasting compounds. "There is a clear need to develop bitter blockers that are able to suppress the bitterness of many medications," said co-author Carol Christensen, PhD, Monell Alumnus Faculty Member. "Although humans have 25 different bitter receptors, our ongoing research suggests only a handful of bitter receptors may be responsible for most of the bitterness of medicines." Taste cells in the mouth that express the TAS2R family of taste receptors are stimulated by sweet, bitter, and savory compounds, and transmit signals to nerve fibers by releasing adenosine triphosphate (ATP), a cell's main source of energy. In turn, ATP activates a receptor called P2X2/P2X3 on the receiving nerve cells. These nerves send information to the brain about the taste of foods and medications. The team used an inhibitor of P2X2/P2X3 receptors, called AF-353, to block taste-nerve transmission and reduce the bitterness signal caused by medications and other taste compounds. Several blockers of P2X2/P2X3 receptors have been identified, with some tested in clinical trials to treat chronic cough; however, a side effect in these trials was taste disturbance. The Monell team capitalized on the "side effect" of these compounds to create an oral treatment that enhances the palatability of medicines. A key finding of the study is that rinsing the mouth with AF-353 significantly reduced the bitterness of two important medicines that treat common chronic diseases: Praziquantel for parasites and Tenofovir Alafenamide (TAF) for hepatitis B and HIV. "AF-353 is the first universal bitter taste blocker that has been identified," said Monell Faculty Member Peihua Jiang, PhD. "In addition to bitter taste, it also affects savory, salt, sweet, and sour tastes. However, AF-353 only blocks taste. Other oral sensations like the tingle from carbonation were not affected." The team conducted both human sensory taste testing and mouse behavioral experiments to determine the breadth, strength, and duration of the blocking effects. The results of the human and rodent studies were similar in the breadth and duration of AF-353's action. The topical application of AF-353 directly into the mouth may improve compliance of many important medications, especially those that are life-saving for children in developing countries. "In people, the blocking effect lasted 60 to 90 minutes, when their taste was restored to normal," said Flammer. "We are now looking for taste blockers that act faster and allow taste to return to normal sooner," said Jiang.orted by the Bill & Melinda Gates Foundation (INV-037008 and INV-042630). The behavioral work was performed at the Monell Behavioral and Physiological Phenotyping Core, which is supported, in part, by the National Institutes of Health (NIH) NIDCD Core Grant 1P30DC011735-01. Research infrastructure was provided in part by NIH Grant G20OD020296.

VANCOUVER, British Columbia, March 27, 2024 (GLOBE NEWSWIRE) -- Algernon Pharmaceuticals Inc. (the “Company” or “Algernon”) (CSE: AGN) (FRANKFURT: AGW0) (OTCQB: AGNPF), a Canadian clinical stage pharmaceutical development company, is pleased to announce that it has closed on its agreement with Seyltx Inc. (“Seyltx”), a privately owned U.S. based drug development company, for the acquisition of Algernon’s NP-120 (“Ifenprodil”) research program for the purchase price of USD $2M cash and a 20% common share equity position in Seyltx. The Company previously announced on November 22, 2003 that it had signed a Letter of Intent with Seyltx, to acquire Algernon’s Ifenprodil research program. Ifenprodil is an N-methyl-D-aspartate (“NMDA”) receptor antagonist specifically targeting the NMDA type subunit 2B (GluN2B), which prevents glutamate signaling. Ifenprodil is one of Algernon’s lead research programs and represents a novel first-in-class potential treatment for chronic cough. It is thought to interfere with central signalling in the brain, suppressing the urge to cough. “There are multiple converging lines of evidence that define GluN2B as the master regulator of the cough reflex in the deep brain, including human clinical data with the allosteric inhibitor Ifenprodil in the hardest to treat cough population, those with underlying idiopathic pulmonary fibrosis, illustrating dramatic reductions in cough counts. This human efficacy data is complemented by an extensive safety package that de-risks the final phases of clinical development,” said Dietrich A. Stephan, Ph.D. co-founder and CEO of Seyltx. “I have great respect for the Algernon team who have done an outstanding job at maturing the program to this point, and we look forward to completing the clinical development of this exciting agent for a common and debilitating condition.” Seyltx plans to initiate an Ifenprodil multi-center Phase 2b placebo-controlled chronic cough study in CY2024. Algernon’s clinical management team will be available to provide support, oversight, and management of the study. “We are very pleased to have closed this transaction with Seyltx,” said Christopher J. Moreau, Algernon’s Chief Executive Officer. “We believe that Ifenprodil, a first in class potential treatment for chronic cough could outperform all other drugs that have been clinically investigated to date. We look forward to working with Seyltx as they advance Ifenprodil into the Phase 2b clinical trial.” In connection with the transaction, Maxim Group LLC was paid a transaction advisory services fee pursuant to an agreement with Algernon whereby Maxim was retained to identify and evaluate potential M&A and strategic opportunities. Algernon’s Phase 2a Study Data Algernon’s decision to advance to a Phase 2b cough study was based on positive data previously reported from the Company’s proof of concept Phase 2a study of idiopathic pulmonary fibrosis (“IPF”) and chronic cough, where Ifenprodil showed a significant reduction in cough count. Patients with IPF are usually excluded from trials in refractory chronic cough (“RCC”), and cough in this population is regarded as extremely difficult to treat. Key Data: The geometric mean 24-hour cough counts were reduced by 32.0% at 4 weeks(p = 0.023) and 39.5% at 12 weeks (p = 0.001) compared to baselineThe geometric mean awake cough counts were reduced by 30.2% at 4 weeks(p = 0.038) and 37.4% at 12 weeks (p = 0.002) compared to baselineAlgernon previously announced on January 14, 2022, that it had received positive feedback from the U.S. Food and Drug Administration at its pre-Investigational New Drug (pre-IND) meeting for its investigation of Ifenprodil solely for the treatment of chronic cough. About Chronic Cough Chronic cough is defined as a cough lasting for more than eight weeks in duration and in the United States cough continues to be one of the most common reasons that adults consult medical doctors. Some cases of chronic cough are so debilitating that quality of life is severely impacted leading to depression, anxiety, urinary incontinence, dysphonia, sleep interruption, vomiting, and even rib fractures further adding to the decay in socio-familial dynamics. Chronic cough is believed to be the result of a hypersensitivity of the cough reflex within the neuronal circuitry that governs the urge to cough, wherein one or more aspects that regulate cough are over-active to stimulus, triggering a cough at abnormal levels. Trials of cough suppressants (“Antitussives”) have shown differences in response that may reflect differing pathological processes driving cough in different patients. Experimental Antitussives (like gefapixant and camlipixant) often only engage a single receptor, while the overall cough response is governed by multiple receptors triggered by a large variety of stimuli. A compound like Ifenprodil, acting centrally in the brain where all peripheral messages are sent and coordinated, may achieve a better outcome than what has been achieved by others in clinical trials. Chronic Cough Market According to Data Bridge Market Research analyses, the global chronic cough market was valued at USD $6.15B in 2021 and is projected to grow up to USD $11.38B by 2029. Merck & Co. obtained the rights to gefapixant, a P2X3 receptor antagonist, as the lead asset in the acquisition of Afferent Pharmaceuticals in 2016. At the time, gefapixant had interim data from a Phase 2b study in RCC. The deal was worth up to USD $1.25 billion. Bellus Health, which was advancing camlipixant, its own novel P2X3 receptor antagonist, closed a deal on June 16, 2023 with GSK plc which bought all the outstanding shares in Bellus for USD $14.75 per share in cash with a total deal value estimated at USD $2 billion, confirming the need for better therapies for chronic cough. About NP-120 (Ifenprodil) NP-120 selectively inhibits GluN2B receptors which diminish excitability of neurons and prevent the relaying of information along neuronal circuitry, including the cough reflex. NP-120 may also inhibit the neuroplastic enhancement of central and peripheral cough response neurons. About Seyltx Inc. Seyltx is a clinical-stage pharmaceutical company focused on addressing refractory chronic cough by modulating the master switch of the cough reflex in the brain. Refractory chronic cough is a common disorder estimated to affect between 4-5 million individuals in the United States alone, for which there exist no effective therapies. About Algernon Pharmaceuticals Inc. Algernon Pharmaceuticals is a Canadian clinical stage drug development company investigating multiple drugs for unmet global medical needs. Algernon Pharmaceuticals has active research programs for chronic kidney disease and is the parent company of a private subsidiary called Algernon NeuroScience, that is advancing a psychedelic program investigating a proprietary form of DMT for stroke and traumatic brain injury. CONTACT INFORMATION Christopher J. MoreauCEOAlgernon Pharmaceuticals Inc.604.398.4175 ext 701info@algernonpharmaceuticals.com investors@algernonpharmaceuticals.com www.algernonpharmaceuticals.com Neither the Canadian Securities Exchange nor its Market Regulator (as that term is defined in the policies of the Canadian Securities Exchange) accepts responsibility for the adequacy or accuracy of this release. CAUTIONARY DISCLAIMER STATEMENT: No Securities Exchange has reviewed nor accepts responsibility for the adequacy or accuracy of the content of this news release. This news release contains forward-looking statements relating to product development, licensing, commercialization and regulatory compliance issues and other statements that are not historical facts. Forward-looking statements are often identified by terms such as “will”, “may”, “should”, “anticipate”, “expects” and similar expressions. All statements other than statements of historical fact, included in this release are forward-looking statements that involve risks and uncertainties. There can be no assurance that such statements will prove to be accurate and actual results and future events could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from the Company’s expectations include the failure to satisfy the conditions of the relevant securities exchange(s) and other risks detailed from time to time in the filings made by the Company with securities regulations. The reader is cautioned that assumptions used in the preparation of any forward-looking information may prove to be incorrect. Events or circumstances may cause actual results to differ materially from those predicted, as a result of numerous known and unknown risks, uncertainties, and other factors, many of which are beyond the control of the Company. The reader is cautioned not to place undue reliance on any forward-looking information. Such information, although considered reasonable by management at the time of preparation, may prove to be incorrect and actual results may differ materially from those anticipated. Forward-looking statements contained in this news release are expressly qualified by this cautionary statement. The forward-looking statements contained in this news release are made as of the date of this news release and the Company will update or revise publicly any of the included forward-looking statements as expressly required by applicable law.