Monopar Presents New Data and Analyses on Rapidly Improved Copper Balance in Wilson Disease Patients on Tiomolybdate Choline at AASLD - The Liver Meeting® 2025

WILMETTE, Ill., Nov. 09, 2025 (GLOBE NEWSWIRE) -- Monopar Therapeutics Inc. (“Monopar” or the “Company”) (Nasdaq: MNPR), a clinical-stage biopharmaceutical company developing innovative treatments for patients with unmet medical needs, is presenting new data and analyses today from the Phase 2 ALXN1840-WD-204 copper balance study at the American Association for the Study of Liver Diseases (AASLD) – The Liver Meeting® 2025, taking place in Washington, D.C., from November 7-11, 2025. In an oral presentation titled “Rapidly Improved Cu Balance in Wilson Disease Patients on Tiomolybdate Choline,” Professor Aftab Ala, MBBS, M.D., FRCP, Ph.D., Professor of Hepatology and Consultant Hepatologist at the Institute of Liver Studies at King’s College Hospital in London, will be sharing results showing that treatment with ALXN1840 (tiomolybdate choline) led to a rapid and sustained improvement in daily copper balance in patients with Wilson disease, primarily through increased fecal copper excretion. The mean daily copper balance among patients treated with ALXN1840 in the study (n=8) was significantly lower - indicating improvement - compared with their pre-treatment baseline. Copper balance improved both during the initial 15 mg once-daily dosing period (days 1-28) and over the entire treatment duration (days 1-39), which included patients receiving either 15 mg every other day or 30 mg once daily. Additional new nonclinical and clinical data supporting these findings from the ALXN1840-WD-204 study will also be presented. The presentation materials are available on Monopar’s website, and the abstract can be accessed on the AASLD conference website. About Monopar Therapeutics Inc. Monopar Therapeutics is a clinical-stage biopharmaceutical company with late-stage ALXN1840 for Wilson disease, and radiopharmaceutical programs including Phase 1-stage MNPR-101-Zr for imaging advanced cancers, and Phase 1a-stage MNPR-101-Lu and late preclinical-stage MNPR-101-Ac225 for the treatment of advanced cancers. For more information, visit: www.monopartx.com. Forward-Looking Statements Statements contained in this press release regarding matters that are not historical facts are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. The words “may,” “will,” “could,” “would,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “predict,” “project,” “potential,” “continue,” “target” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. The forward-looking statements involve risks and uncertainties including, but not limited to: uncertainties related to the regulatory process that Monopar intends to initiate related to ALXN1840 and the outcome thereof; the rate of market acceptance and competitiveness in terms of pricing, efficacy and safety, of any products for which Monopar receives marketing approval, and Monopar’s ability to competitively market any such products as compared to larger pharmaceutical firms; Monopar’s ability to raise sufficient funds in order for the Company to support continued preclinical, clinical, regulatory, precommercial and commercial development of its programs and to make contractual milestone payments, as well as its ability to further raise additional funds in the future to support any existing or future product candidate programs through completion of clinical trials, the approval processes and, if applicable, commercialization; and the significant general risks and uncertainties surrounding the research, development, regulatory approval, and commercialization of imaging agents and therapeutics. Actual results may differ materially from those expressed or implied by such forward-looking statements. Risks are described more fully in Monopar's filings with the Securities and Exchange Commission. All forward-looking statements contained in this press release speak only as of the date on which they were made. Monopar undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made. Any forward-looking statements contained in this press release represent Monopar’s views only as of the date hereof and should not be relied upon as representing its views as of any subsequent date. CONTACT: Monopar Therapeutics Inc.Investor RelationsQuan VuChief Financial Officervu@monopartx.com Follow Monopar on social media for updates:    X: @MonoparTx LinkedIn: Monopar Therapeutics  

Monopar Presents New Data and Analyses on Rapidly Improved Copper Balance in Wilson Disease Patients on Tiomolybdate Choline at AASLD - The Liver Meeting® 2025

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