Tavaborole

MENLO PARK, Calif.--(BUSINESS WIRE)--AN2 Therapeutics, Inc. (Nasdaq: ANTX), a biopharmaceutical company advancing novel small molecule therapeutics through its boron chemistry platform, today announced a collaboration agreement with the global biopharma company GSK to develop new therapies for tuberculosis (TB). As part of this effort, the Gates Foundation will provide a third year of funding to support AN2’s work within the collaboration. TB continues to pose a major global health challenge, affecting more than a quarter of the world’s population and causing over 1.25 million deaths annually.1 “Our boron chemistry platform offers a differentiated and proven approach to small molecule drug discovery, paving the way for potential breakthroughs in addressing high unmet needs in infectious diseases and other therapeutic areas,” said Eric Easom, Co-Founder, Chairman, President and CEO of AN2 Therapeutics. “Boron chemistry has enabled the design of compounds that target novel mechanisms, such as LeuRS, not achieved by traditional carbon-based chemistry approaches. We believe it has the potential to deliver impactful therapeutics in infectious diseases like nontuberculous mycobacterial (NTM) lung disease and TB and for other therapeutic areas including critical solid-tumor oncology targets such as PI3Kα and ENPP1 and other high priority targets.” LeuRS is the same validated target underlying epetraborole (in development for NTM lung disease), ganfeborole (in development for TB), and tavaborole, an FDA-approved antifungal. Easom continued: “This collaboration builds on years of partnership between the team now at AN2 and GSK, underpinned by a shared commitment to exploring the potential of boron-based therapeutics. We are hopeful that this approach may contribute to addressing the significant unmet needs of TB patients in the future. Our team brings extensive experience applying boron chemistry to drug discovery and working alongside GSK’s Global Health research and development team, we look forward to advancing a program that could help address this urgent global health challenge.” Thomas Breuer, Chief Global Health Officer, GSK said: "Getting ahead of tuberculosis, the world’s deadliest infectious disease, requires bold science and strong partnerships. Through this collaboration with AN2 Therapeutics, supported by the Gates Foundation, we are proud to be advancing innovative approaches in the hopes of developing new TB treatments for those who need it most in lower income countries.” About AN2 Therapeutics AN2 Therapeutics, Inc. is a biopharmaceutical company focused on discovering and developing novel small molecule therapeutics derived from its boron chemistry platform. AN2 has a pipeline of boron-based compounds in development for Chagas disease, melioidosis, and NTM lung disease caused by M. abscessus, along with programs focused on targets in oncology and infectious diseases. We are committed to delivering high-impact drugs to patients that address critical medical needs and improve health outcomes. For more information, please visit our website at www.an2therapeutics.com. Forward-Looking Statements This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including, but not limited to, statements regarding AN2 Therapeutics’ collaboration with GSK, the potential of AN2’s boron chemistry platform, the development of LeuRS-targeting therapeutics, and the ability of such programs to address tuberculosis or other areas of unmet medical need. Forward-looking statements are based on AN2’s current expectations and involve risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statements. These risks and uncertainties include, among others, the ability to successfully initiate and complete preclinical and clinical studies, obtain regulatory approvals, and commercialize any resulting products; the timing and success of collaborations; and other risks described in AN2’s filings with the Securities and Exchange Commission, including under the heading “Risk Factors” in AN2’s most recent quarterly report on Form 10-Q and other filings. AN2 undertakes no obligation to update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise, except as required by law. 1 https://www.cdc.gov/global-hiv-tb/media/pdfs/2025/03/2025_DGHT-TB-Overview-Factsheet.pdf

MENLO PARK, Calif. & GENEVA--(BUSINESS WIRE)--AN2 Therapeutics, Inc. (Nasdaq: ANTX) and the non-profit medical research organization Drugs for Neglected Diseases initiative (DNDi) today announced a collaboration to advance clinical development of AN2-502998, AN2’s oral drug candidate in development for the treatment of chronic Chagas disease. Chagas disease is a life-threatening disease caused by the parasite Trypanosoma cruzi and affects 6 to 7 million people worldwide, including an estimated 300,000 in the United States. The T. cruzi parasite invades the body and lives long term in different tissues, including the heart and gastrointestinal system. Patients with chronic Chagas disease often remain asymptomatic for years while the infection silently causes irreversible damage to vital systems, including the heart and GI system, in an analogous manner to the silent, chronic liver damage experienced by patients with hepatitis C. Approximately 30% of patients with chronic T. cruzi infection develop serious manifestations of the infection that can lead to heart failure, arrhythmias, aortic aneurism, megacolon, megaesophagus, and other life-threatening conditions. The disease follows a chronic, progressive course, making timely diagnosis and access to treatment critical. “By drawing upon DNDi’s deep expertise in Chagas disease clinical trials, our collaboration optimizes resources, supports rigorous scientific execution, and accelerates access to a potential breakthrough therapy across multiple geographies, all while allowing AN2 to maintain full investment in our other high-potential pipeline programs,” said Eric Easom, Co-Founder, Chairman, President, and CEO of AN2 Therapeutics. “Together with the Chagas disease expertise from our partner, Professor Rick Tarleton of the University of Georgia, this collaboration with DNDi represents a rare opportunity to align global health impact and value creation, offering the hope of meaningful benefits to patients.” Having led and participated in multiple clinical trials for Chagas disease, DNDi has an established network of clinical trial sites throughout Latin America and Spain. In 2009, DNDi and its partners created the Chagas Clinical Research Platform, which advances pharmaceutical research and development for Chagas disease through stakeholder partnerships. “We are committed to sharing DNDi’s deep expertise to accelerate the development of candidates with strong potential to fulfill the Chagas disease target product profile, as is the case for AN2-502998,” said Dr. Laurent Fraisse, R&D Director at DNDi. “Having worked with members of the AN2 team for nearly 20 years, we successfully discovered and developed several drug candidates from the oxaborole class, including acoziborole, a single oral dose cure for African sleeping sickness and DNDI-6148, which emerged as a promising clinical candidate for leishmaniasis and Chagas disease working through the same novel mechanism of action as AN2-502998 and is an option within the collaboration with AN2.” One of DNDi’s core priorities is to develop an oral, age-adapted, shorter-course treatment for Chagas that is safer, better tolerated, and more effective than current options–and would be accessible to patients in all affected regions. “This collaboration with AN2 complements DNDi’s broader early-stage pipeline of novel candidates for Chagas disease,” said Dr. María Jesús Pinazo, Head of Chagas disease at DNDi. “In parallel to the development of therapeutics, we are also investing in biomarker research and implementation studies to ensure that effective diagnostics and treatments can reach the people who need them most.” About AN2-502998 in Chagas Disease AN2-502998 is a boron-based small molecule therapeutic candidate from the benzoxaborole class, which has a broad therapeutic profile and includes two FDA-approved drugs (crisaborole and tavaborole). AN2-502998 is an orally active CPSF3 inhibitor in T. cruzi. CPSF3 is a key factor involved in messenger RNA processing and is the same target as the benzoxaborole drug candidate acoziborole, which showed ~95% cure rate after a single oral dose in a Phase 2/3 study for human African trypanosomiasis, a related disease caused by trypanosome parasites. AN2 Therapeutics has initiated startup activities for its Phase 1 first-in-human clinical study of oral AN2-502998, expects to complete this trial in the second half of 2025, and anticipates initiation of a Phase 2 proof-of-concept study in 2026. About Chagas Disease Chagas disease (also known as American trypanosomiasis) is an infectious disease caused by the parasite Trypanosoma cruzi (T. cruzi). An estimated 6-7 million people worldwide are infected with the parasite T. cruzi, mostly in endemic regions in Latin America, but there are also approximately 300,000 people infected in the U.S. and over 100,000 in Europe. Left untreated, chronic Chagas infection is lifelong and silently damages the heart and digestive system, potentially resulting in heart failure, stroke, or sudden death. There are no FDA approved treatments for adults with Chagas disease. About Drugs for Neglected Diseases Initiative (DNDi) The Drugs for Neglected Diseases initiative (DNDi) is a not-for-profit medical research organization that discovers, develops, and delivers safe, effective, and affordable treatments for neglected populations. DNDi is developing medicines for sleeping sickness, leishmaniasis, Chagas disease, river blindness, mycetoma, dengue, paediatric HIV, cryptococcal meningitis, and hepatitis C. Its research priorities include children’s health; gender equity and gender-responsive R&D; and diseases impacted by climate change. DNDi was founded in 2003 by Doctors Without Borders/Médecins Sans Frontières (MSF), using their prize money from their Nobel Prize. Since its creation in 2003, DNDi has collaborated with public and private partners worldwide to deliver twelve new treatments for six deadly diseases, saving millions of lives. www.dndi.org About AN2 Therapeutics, Inc. AN2 Therapeutics, Inc. is a biopharmaceutical company focused on discovering and developing novel small molecule therapeutics derived from its boron chemistry platform. AN2 has a pipeline of boron-based compounds in development for Chagas disease, melioidosis, and NTM lung disease caused by M. abscessus, along with programs focused on targets in infectious diseases and oncology. We are committed to delivering high-impact drugs to patients that address critical unmet needs and improve health outcomes. For more information, please visit our website at www.an2therapeutics.com. Forward Looking Statements This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements expressed or implied in this press release include, but are not limited to, statements regarding: AN2’s plans about potential treatments for Chagas' disease; the design, execution, and outcome of a potential Phase 2 proof of concept trial in Chagas; AN2-502998’s potential to treat Chagas; the impact of Chagas and efficacy on current standard-of-care treatments; the timing and execution of Phase 2 trials; AN2's investment in and execution of its other pipeline programs. These statements are based on AN2’s current estimates, expectations, plans, objectives and intentions, are not guarantees of future performance and inherently involve significant risks and uncertainties. Actual results and the timing of events could differ materially from those anticipated in such forward-looking statements as a result of these risks and uncertainties, which include, but are not limited to, risks and uncertainties related to: AN2’s ability to conduct Phase 2 and future trials in Chagas; DNDi's ability to execute trials according to projected timelines and projected costs; timely enrollment of patients in clinical trials; AN2’s ability to procure sufficient supply of its product candidates for its clinical trials; the potential for results from clinical trials to differ from preclinical, early clinical, preliminary or expected results, significant adverse events, toxicities or other undesirable side effects associated with AN2’s product candidates; the significant uncertainty associated with AN2’s product candidates ever receiving any regulatory approvals; AN2’s ability to obtain, maintain or protect intellectual property rights related to its current and future product candidates; the sufficiency of AN2’s capital resources and need for additional capital to achieve its goals; global macroeconomic conditions and global conflicts and other risks, including those described under the heading “Risk Factors” in AN2’s Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and other reports filed with the U.S. Securities and Exchange Commission(SEC). These filings, when made, are available on the investor relations section of AN2’s website at www.an2therapeutics.com and on the SEC’s website at www.sec.gov. Forward-looking statements contained in this press release are made as of this date, and AN2 undertakes no duty to update such information except as required under applicable law