Neurotech Receives US ODD in Rett Syndrome

ASX Announcement 26 November 2024 Neurotech International Ltd Suite 5 CPC, 145 Stirling Highway Nedlands, Western Australia 6009 T: +61 (8) 9389 3130 E: [email protected] W: neurotechinternational.com ABN: 73 610 205 402 ASX: NTI 1 of 2 Neurotech Receives US Orphan Drug Designation in Rett Syndrome Neurotech International Limited (ASX: NTI) (‘Neurotech’, ’ NTI’ or ‘the Company ’) a clinical -stage biopharmaceutical development company focused predominately on paediatric neurological disorders, today announces the US Food and Drug Administration (FDA) has granted the Company orphan drug designation (ODD) for the use of NTI164 in children and adults diagnosed with Rett Syndrome. Dr Thomas Duthy, Executive Director of Neurotech said “We are very pleased to have secured this orphan designation from the US FDA. Rett Syndrome remains a difficult to treat rare neurological disorder where safe and effective treatments are needed. Our Phase I/II clinical trial demonstrated significant clinical effects in these patients with an excellent safety profile extending beyond the initial 12 weeks of the trial. We look forward to the results of our European ODD request for Rett Syndrome with the European Medicines Agency, which was filed in October with the outcome expected in the first quarter of CY2025.” The FDA has authority to grant orphan drug designation to a drug or biological product to prevent, diagnose or treat a rare disease or condition. ODD qualifies sponsors for incentives including: (a) tax credits for qualified clinical trials (b) exemption from user fees and (c) potential seven years of market exclusivity after approval . The Orphan Drug Act defines a rare disease as a disease or condition that affects less than 200,000 people in the United States. Rett Syndrome is a rare genetic neurological and developmental disorder and is almost exclusively the result of a mutation(s) in the methyl CpG binding protein 2 (MECP2) gene located on the X chromosome, which is required for normal brain development and f unction. Rett Syndrome occurs almost exclusively in girls, with incidence of one in 10,000 female live births. The prevalence is approximately 15,000 girls and women in the US and 350,000 globally. The market is estimated at over US$2 billion annually. Authority This announcement has been authorised for release by the Board of Neurotech International Limited. Further Information Dr Thomas Duthy Executive Director [email protected] +61 (0) 402 493 727 About Neurotech Neurotech International Limited (ASX:NTI) ) is a clinical-stage biopharmaceutical development company focused predominately on paediatric neurological disorders with a broad -spectrum oral cannabinoid drug therapy called NTI164. Neurotech has completed a Phase II/III randomised, double - blind, placebo-controlled clinical trial in Autism Spectrum Disorder (ASD) with clinically meaningful and statistically significant benefits reported across a number of clinically-validated measures and excellent safety. In addition, Neurotech has completed and reported statistically significant and clinically meaningful Phase I/II trials in ASD and Paediatric Autoimmune Neuropsychiatric Disorders Associated Neurotech International Ltd Suite 5 CPC, 145 Stirling Highway Nedlands, Western Australia 6009 T: +61 (8) 9389 3130 E: [email protected] W: neurotechinternational.com ABN: 73 610 205 402 ASX: NTI 2 of 2 with Streptococcal Infections (PANDAS) and Paediatric Acute -Onset Neuropsychiatric Syndrome (PANS), collectively PANDAS/PANS along with Rett Syndrome. Neurotech has received human ethics committee clearance for a Phase I/II clinical trial in spastic cerebral palsy. For more information about Neurotech please visit http://www.neurotechinternational.com. About NTI164 NTI164 is a proprietary drug formulation derived from a unique cannabis strain with low THC (M<0.3%) and a novel combination of cannabinoids including CBDA, CBC, CBDP, CBDB and CBN. NTI164 has been exclusively licenced for neurological applications globally. Pre-clinical studies have demonstrated a potent anti -proliferative, anti -oxidative, anti -inflammatory and neuro -protective effects in human neuronal and microglial cells. NTI164 is being developed as a therapeutic drug product for a range of neurological disorders in children where neuroinflammation is involved. About Rett Syndrome Rett Syndrome is a rare genetic neurological and developmental disorder and is almost exclusively the result of a mutation(s) in the methyl CpG binding protein 2 (MECP2) gene located on the X chromosome, which is required for normal brain development and f unction. Rett Syndrome occurs almost exclusively in girls compared to boys (mostly fatal within one year of birth), with incidence of approximately 1 in 10,000 female live births across all racial and ethnic groups worldwide. According to the Rett Syndrome Research Trust, the prevalence is approximately 15,000 girls and women in the US and 350,000 globally. Rett syndrome is characterized by typical early normal development between 7 -18 months after birth, followed by a slowing of development, loss of functional use of the hands, distinctive hand movements along with difficulty walking, communicating, irritabi lity and seizures. There is currently no cure for Rett Syndrome and one approved therapy in the United States. Current treatments only address symptoms and provide support that may improve movement, communication and social participation into adulthood.

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