Appendix 4C – Q3 FY24 Quarterly Cash Flow Report - Seite 2

In April 2024, a poster was presented at the American Academy of Neurology (AAN) 2024 Annual Meeting, entitled, “A Phase 2 Study of ATH434, a Novel Inhibitor of α-Synuclein Aggregation, for the Treatment of Multiple System Atrophy”. The poster described the baseline characteristics for the 65 evaluable participants from the ATH434-201 with a focus on baseline fluid biomarkers, neuroimaging and clinical data. The participants met the strict criteria designed to confirm that participants were diagnosed with early-stage MSA and had a mean of two years of motor symptoms. The data showed increased iron in areas of pathology and elevated plasma Neurofilament Light Chain (NfL) levels at baseline that correlated significantly with disease severity.

The trial remains on track to complete in November 2024. The data from the trial will then be analyzed and the Company expects to report topline results by January 2025.

ATH434–202: Open-label, Biomarker Phase 2 Clinical Trial in More Advanced MSA

The ATH434-202 trial continues to enroll participants with more advanced MSA than in the 201 trial. A key aim of the 202 study is to assess the efficacy of ATH434 treatment on neuroimaging and protein biomarkers to evaluate target engagement, in addition to clinical measures, safety, and pharmacokinetics. While the 202 trial is also treating participants for 12-months, it has an open label design that will allow Alterity to perform interim analyses of biomarker and clinical data while the study is ongoing, providing a potential early indication of efficacy. The Company expects to report preliminary six-month data from the initial patients enrolled in the ATH434-202 trial in the second quarter of 2024.

ATH434 for the Treatment of Parkinson’s Disease

A poster was also presented at AAN entitled, “Effects of ATH434, a Clinical-Phase Small Molecule with Moderate Affinity for Iron, in Hemiparkinsonian Macaques”. The presentation showed that ATH434 can reduce Parkinsonism in a higher order animal, the monkey, with symptoms that closely parallel human disease. Importantly, the improvements in motor skills and general functioning that parallel human parkinsonism were associated with reductions in abnormal iron in affected brain regions. These favorable parkinsonian outcomes observed in each of the ATH434-treated monkeys were also associated with increased levels of striatal synaptophysin, a protein marker that reflects functional connections between neurons, suggesting functional recovery of nerve endings in this critical motor pathway. Taken together, the findings in this study increase the Company’s confidence in their approach in the ongoing Phase 2 program in MSA.