As filed with the U.S. Securities and Exchange Commission on November 17, 2025. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM F-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Biodexa Pharmaceuticals PLC (Exact name of registrant as specified in its charter) (State or Other Jurisdiction of Incorporation or Organization) England and Wales 2834 Not Applicable (Primary Standard Industrial Classification Code Number) (IRS Employer Identification No. ...

Core Viewpoint - PharmaTher Holdings Ltd. has received a U.S. patent for the use of ketamine in treating Amyotrophic Lateral Sclerosis (ALS), significantly enhancing its intellectual property portfolio and clinical development program [1][2][3] Company Overview - PharmaTher is focused on unlocking the pharmaceutical potential of ketamine, particularly for severe neurological disorders [1][3][8] - The company aims to address unmet medical needs in various fields, including surgery, pain, mental health, and neurological conditions [8] Patent and Regulatory Designations - The newly granted U.S. Patent No. 12,128,012, expiring on May 14, 2041, provides long-term protection for the specific method of using ketamine to treat ALS [7] - The company holds an Orphan Drug Designation (ODD) from the FDA, which offers seven years of market exclusivity post-approval, tax credits for clinical trials, exemption from FDA application fees, and regulatory guidance [7] Market Opportunity - The ALS treatment market is projected to exceed USD $1.04 billion by 2030, driven by high unmet needs and a dedicated patient advocacy community [7] - Approximately 5,000 new ALS cases are diagnosed annually in the U.S., with an estimated 30,000 individuals currently living with the disease [7] Strategic Positioning - The combination of the new patent and FDA ODD creates a strong strategic advantage for PharmaTher, allowing the company to advance its clinical program and pursue strategic partnerships [6][7] - The company is positioned to deliver potentially life-altering therapies to patients with urgent medical needs [6][3]