Appendix 4C – Q4 FY23 Quarterly Cash Flow Report

Highlights:

• ATH434-201 Phase 2 study on track to complete enrollment in Q3 2023 with top-line data expected by the end of 2024 in individuals with Multiple System Atrophy (MSA)
• ATH434–201 Phase 2 Data Monitoring Committee recommends continuing clinical trial as planned
• Initiated ATH434-202 Phase 2 Biomarker study in individuals with more advanced MSA
• Promising wearable sensor data from the bioMUSE Natural History Study presented at the AAN Annual Meeting
• Cash balance on 30 June 2023 of $15.8M

MELBOURNE, AUSTRALIA AND SAN FRANCISCO, USA – 31 July 2023. Alterity Therapeutics Limited (ASX: ATH, NASDAQ: ATHE) (“Alterity” or “the Company”), a biotechnology company dedicated to developing disease modifying treatments for neurodegenerative diseases, releases its Appendix 4C Quarterly Cash Flow Report and update on company activities for the quarter ending 30 June 2023 (Q4 FY23).

“The last several months have been extremely productive for Alterity as we hit several milestones and made significant progress advancing ATH434,” said David Stamler, M.D., Chief Executive Officer, Alterity. “With the clearance by the Data Monitoring Committee to continue the ATH434-201 trial as planned and the enthusiasm for the trial from physicians around the world, the trial remains on track to complete enrollment in the third quarter of 2023 with top-line data expected by the end of 2024.”

Dr. Stamler, continued, “We also initiated a second Phase 2 study, ATH434-202, in participants with more advanced MSA. Importantly, this Biomarker study gives us the opportunity to get an early indication of efficacy before the ATH434-201 Phase 2 study reads out. Individuals with more advanced MSA may also benefit from ATH434 and measuring key biomarkers will permit us to evaluate drug activity in this population. The data derived from the Biomarker study have the potential to accelerate the overall development program.”

“An important element of our ATH434-201 trial is the use of wearable sensors to determine the impact of ATH434 on motor impairment and gait stability. During the quarter, data from the bioMUSE natural history study reinforced this measure by showing that wearable sensors can be used to assess disease progression that may not be captured by neurological examination,” concluded Dr. Stamler.

The Company’s cash position on 30 June 2023 was A$15.8M with operating cash outflows for the quarter of A$6.2M. The company anticipates the cash position will be boosted in the coming weeks with the receipt of the A$4.7M R&D Tax incentive for the 2022 fiscal year.

Operational Activities

ATH434–201 Phase 2 Clinical Trial

Subsequent to the quarter, on 26 July, Alterity announced that the independent Data Monitoring Committee (DMC) for the ATH434-201 Phase 2 study recommended the trial continue as planned. The DMC conducted a prespecified review of unblinded clinical data from an initial cohort of study participants. The DMC expressed no concerns about safety and recommended that the study continue without modification.

This randomized, double blind, placebo controlled clinical trial continues to progress with participants in both Australia and the United Kingdom now being treated. The trial is enrolling participants with early stage MSA at over 15 sites in three regions – Australia/New Zealand, the United States, and Europe. The trial is being well received by physicians across the board with feedback positive as they implement Alterity’s state of the art methods to diagnose and track the disease.

ATH434–202 Phase 2 Clinical Trial

Alterity initiated enrollment in a second Phase 2 trial of ATH434 during the quarter in participants with MSA. This open label, single arm study, entitled “A Biomarker Study of ATH434 in participants with MSA” (ATH434-202), allows Alterity to evaluate the effect of ATH434 on a MSA population more advanced than that being investigated in the randomized study. The design of the Biomarker study will allow the Company to perform interim analyses of biomarker data during conduct, with potential to provide early indications of efficacy before the randomized study reads out.

The key aim of the study is to assess the efficacy of ATH434 on objective biomarkers that measure target engagement and are relevant to the underlying pathology of disease. Clinical measures important in MSA will also be assessed.

Promising wearable sensor data from the bioMUSE Natural History Study

During the quarter, analysis from the Biomarkers of Progression in Multiple System Atrophy (bioMUSE) natural history study demonstrated that wearable sensors can quantify motor impairment in individuals with MSA that is not captured by neurological examination. This means that wearable sensors can be used to assess disease progression and inform clinical trials. These data were presented at the American Academy of Neurology Annual Meeting. As a result of the study, Alterity has incorporated wearable sensor data into its Phase 2 clinical trial for ATH434 as one of its secondary endpoints to determine the effect of treatment on gait parameters.

The ongoing bioMUSE study will continue to provide vital information on early stage MSA, inform the selection of biomarkers suitable to evaluate target engagement and preliminary efficacy, and deliver clinical data to characterize disease progression in a population that mirrors those being studied in Alterity’s ATH434-201 trial.

About Alterity Therapeutics Limited

Alterity Therapeutics is a clinical stage biotechnology company dedicated to creating an alternate future for people living with neurodegenerative diseases. The Company’s lead asset, ATH434, has the potential to treat various Parkinsonian disorders. Alterity also has a broad drug discovery platform generating patentable chemical compounds to intercede in disease processes. The Company is based in Melbourne, Australia, and San Francisco, California, USA. For further information please visit the Company’s web site at www.alteritytherapeutics.com.

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Authorisation & Additional information

This announcement was authorised by David Stamler, CEO of Alterity Therapeutics Limited.