Latest news with #ATH434
Associated Press
12-05-2025
- Business
- Associated Press
Alterity Therapeutics Prominently Featured at the International MSA Congress
–ATH434 Phase 2 data demonstrated clinically meaningful efficacy on multiple clinical endpoints – –MSA Atrophy Index (MSAai) enhances MSA diagnosis and monitoring – –bioMUSE Study shows higher α- synuclein concentration is associated with greater burden of orthostatic symptoms – MELBOURNE, Australia and SAN FRANCISCO, May 12, 2025 (GLOBE NEWSWIRE) -- Alterity Therapeutics (ASX: ATH, NASDAQ: ATHE) ('Alterity' or 'the Company'), a biotechnology company dedicated to developing disease modifying treatments for neurodegenerative diseases, today announced that several oral and poster presentations related to Alterity's clinical programs in Multiple System Atrophy (MSA) were featured at the 2025 International MSA Congress. The Congress was presented by Mission MSA, a non-profit organization dedicated to improving the quality of life and building hope for people affected by MSA through support services, educational resources, research funding, and community engagement. 'The MSA Congress gave us an opportunity to share the results of our Phase 2 double-blind trial of ATH434 with prominent MSA clinicians and scientists as well as community members affected by MSA,' said David Stamler, M.D., Chief Executive Officer of Alterity. 'The robust efficacy of ATH434, as indicated by reduced disease severity on the MSA activities of daily living scale along with improvement in key symptoms of MSA and preserved activity in the outpatient setting, continue to generate enthusiasm. Our clinical progress is generating significant excitement, and we are focused on bringing this therapy to patients as quickly as possible.' 'In addition, our colleagues at Vanderbilt University Medical Center presented data from our bioMUSE Natural History Study that highlights the understanding of MSA we have brought to our development program. Because of the variability in MSA presentation and progression and its similarity to Parkinson's disease, it is critical to improve diagnostic and monitoring tools. Through development of a novel imaging biomarker known as the MSA Atrophy Index (MSAai), we have a new tool to measure and track brain volume in individuals with MSA. In a separate presentation, the bioMUSE study demonstrated that α-synuclein levels in the skin increased over the 12-month follow-up period, and that a higher concentration of α-synuclein in skin is associated with greater burden of orthostatic symptoms, a valuable finding that confers insight into disease progression.' Presentation Highlights: ATH434 Slowed Disease Progression in a Phase 2 Study in Multiple System Atrophy Presenter: David Stamler, M.D., Chief Executive Officer of Alterity The oral and poster presentation highlighted data from Alterity's ATH434-201 Phase 2 clinical trial. The clinical analysis included 71 patients who had at least one post-baseline assessment of the key clinical endpoint, the modified UMSARS1 I activities of daily living scale. On this endpoint, ATH434 demonstrated a clinically significant reduction in disease severity versus placebo, with a 48% relative treatment effect at the 50 mg dose (p=0.02)^ and a 30% relative treatment effect at the 75 mg dose (p=0.16) at 52 weeks. Additional efficacy assessments showed improvement consistent with the UMSARS I findings: the Clinical Global Impression of Severity Scale2 demonstrated improvement compared to placebo at both dose levels, with difference at 50 mg achieving nominal statistical significance (p=0.0088). On the Orthostatic Hypotension Symptom Assessment (a patient reported outcome), on average placebo patients worsened by approximately 6 points over 52 weeks whereas both ATH434 treatment groups improved over the same period (p=0.08 at 50 mg, p=0.14 at 75 mg). Baseline differences in disease severity likely explain different response in 50 mg and 75 mg treatment groups. Increased activity in the outpatient setting was observed at both dose levels as compared to placebo with wearable sensors, with clinically meaningful improvements in step count, bouts of walking, total walking time, and total standing time. ATH434 was well tolerated with similar adverse event rates compared to placebo and no serious adverse events attributed to ATH434. Regarding neuroimaging in 61 participants, ATH434 demonstrated target engagement by stabilizing or reducing iron accumulation at both dose levels compared to placebo in MSA affected brain regions. In addition, ATH434 demonstrated trends in reducing brain atrophy at both dose levels compared to placebo. Overall, the study results support continued advancement of ATH434 for the treatment of MSA. MSA Atrophy Index (MSAai): A Quantitative Imaging Marker for Diagnosis and Monitoring of Multiple System Atrophy Presenter: Amy Brown, M.D., M.S., Assistant Professor, Movement Disorders Division, Department of Neurology, Vanderbilt University Medical Center This oral presentation described the MSA Atrophy Index (MSAai) as a promising imaging biomarker that distinguishes MSA from related disorders, correlates with clinical presentation, and tracks disease progression. Its implementation has the potential to enhance MSA diagnosis and monitoring in both clinical trials and clinical practice. The MSAai imaging tool was developed by the team at Vanderbilt University Medical Center as part of the bioMUSE Natural History Study. The study evaluated the utility of volumetric measures and the MSAai in distinguishing early MSA from other movement-related disorders, correlating with clinical presentation, and tracking longitudinal changes in brain structure. The study results showed that fluid biomarkers classified bioMUSE participants into MSA (n=10), Lewy body disorders (n=5; PD or DLB), and α-synuclein-negative (n=2) groups. At baseline, MSA patients had significantly lower LN, brainstem, cerebellum, and MSAai values compared to HC, PD, DLB, and PAF (all p<0.001). The MSAai demonstrated strong group discrimination, correlated with UMSARS scores (ρ=-0.46, p=0.038), and predicted clinical progression (ρ=0.58, p=0.022). Longitudinally, reductions in LN, brainstem, and MSAai volumes were strongly associated with UMSARS progression. Cutaneous Phosphorylated Alpha-Synuclein Deposition Informs Autonomic Function in Individuals with Early-Stage Multiple System Atrophy Presenter: Leah Mann, PhD, Postdoctoral Research Fellow, Vanderbilt University Medical Center This poster presentation evaluated 17 participants from the bioMUSE Natural History Study who met criteria for clinically probable MSA. The study compared α-synuclein deposition in skin at baseline and 12 months later and examined associations between clinical measures and α-synuclein quantitation over the year. The analysis described the relationship between α-synuclein and autonomic function and revealed that cutaneous α-synuclein detection may serve as an effective diagnostic biomarker that can additionally track progression of MSA. Importantly, deposition of α-synuclein may confer insight into symptomatology, as higher α- synuclein concentration is associated with greater burden of orthostatic symptoms. In the analysis, 100% (17/17) of patients exhibited detection of phosphorylated α-synuclein by skin biopsy. Cutaneous α-synuclein deposition significantly increased ( p = 0.042) from baseline (mean = 6.59 ± 4.37) to 12-month follow-up (mean = 7.71 ± 4.22). Deposition at 12-month follow-up was positively correlated with Orthostatic Hypotension Questionnaire (OHQ) and Composite Autonomic Symptom Score-31 (COMPASS-31) (OHQ: coefficient = 0.579, p = 0.015; COMPASS-31: coefficient = 0.560, p = 0.024). Presentations will be available on the Alterity Therapeutics website here. About ATH434 Alterity's lead candidate, ATH434, is an oral agent designed to inhibit the aggregation of pathological proteins implicated in neurodegeneration. ATH434 has been shown preclinically to reduce α-synuclein pathology and preserve neuronal function by restoring normal iron balance in the brain in preclinical models. As an iron chaperone, it has excellent potential to treat Parkinson's disease as well as various Parkinsonian disorders such as Multiple System Atrophy (MSA). Phase 1 studies have demonstrated the agent is well tolerated and achieved brain levels comparable to efficacious levels in animal models of MSA. Positive results from the randomized, double-blind, placebo-controlled Phase 2 clinical trial in patients with MSA demonstrated robust clinical efficacy, target engagement on key biomarkers, and a favorable safety profile. A second Phase 2 open-label biomarker trial in patients with more advanced MSA is ongoing. ATH434 has been granted Fast Track Designation by the U.S. FDA, and Orphan Drug Designation by the U.S. FDA and the European Commission for the treatment of MSA. About ATH434-201 Phase 2 Clinical Trial The ATH434-201 Phase 2 clinical trial is a randomized, double-blind, placebo-controlled investigation of 12 months treatment with ATH434 in patients with MSA. The study evaluated the efficacy, safety and pharmacokinetics of ATH434 as well as the effect of ATH434 on neuroimaging and protein biomarkers. Wearable sensors were employed to evaluate motor activities outside of the clinic. The study enrolled 77 adults who were randomly assigned to receive ATH434 50 mg or 75 mg twice daily or matching placebo. The data showed that, compared to placebo, ATH434 produced clinically and statistically significant improvement on the modified Unified Multiple System Atrophy Rating Scale (UMSARS) Part I, a functional rating scale that assesses disability on activities of daily living affected in MSA. Additional efficacy assessments demonstrated improvement consistent with the positive UMSARS Part I findings including trends in improved motor performance on the Parkinson's Plus rating scale, the Clinical Global Impression of Severity Scale, and the Orthostatic Hypotension Symptom Assessment (a patient reported outcome). Wearable sensor data indicated that ATH434 also led to increased activity in an outpatient setting. Biomarkers were used to evaluate potential drug effect and target engagement relative to placebo. Both dose levels reduced iron accumulation in MSA affected brain regions with trends in preservation of brain volume. ATH434 was well tolerated with similar adverse event rates compared to placebo and no serious adverse events attributed to ATH434. Additional information on the Phase 2 trial can be found by Identifier: NCT05109091. About bioMUSE Biomarkers of progression in Multiple System Atrophy (bioMUSE) is a natural history study that aims to track the progression of individuals with MSA, a parkinsonian disorder without approved therapy. The study is being conducted in collaboration with Vanderbilt University Medical Center in the U.S. under the direction of Daniel Claassen, M.D., M.S., Professor of Neurology and Principal Investigator. Natural history studies are important for characterizing disease progression in selected patient populations. The study has provided rich data for optimizing the design of Alterity's randomized ATH434-201 Phase 2 clinical trial and enrolled approximately 20 individuals with clinically probable or clinically established MSA. BioMUSE continues to provide vital information on early stage MSA patients, informs the selection of biomarkers suitable to evaluate target engagement and preliminary efficacy, and delivers clinical data to characterize disease progression in a patient population that mirrors those currently enrolling in the Phase 2 clinical trial. About Multiple System Atrophy Multiple System Atrophy (MSA) is a rare, neurodegenerative disease characterized by failure of the autonomic nervous system and impaired movement. The symptoms reflect the progressive loss of function and death of different types of nerve cells in the brain and spinal cord. It is a rapidly progressive disease and causes profound disability. MSA is a Parkinsonian disorder characterized by a variable combination of slowed movement and/or rigidity, autonomic instability that affects involuntary functions such as blood pressure maintenance and bladder control, and impaired balance and/or coordination that predisposes to falls. A pathological hallmark of MSA is the accumulation of the protein α-synuclein within glia, the support cells of the central nervous system, and neuron loss in multiple brain regions. MSA affects at least 15,000 individuals in the U.S., and while some of the symptoms of MSA can be treated with medications, currently there are no drugs that are able to slow disease progression and there is no cure.1 1 Multiple System Atrophy | National Institute of Neurological Disorders and Stroke ( 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 is initially focused on developing disease modifying therapies in Parkinson's disease and related disorders. Alterity recently reported positive data for its lead asset, ATH434, in a Phase 2 clinical trial in participants with Multiple System Atrophy (MSA), a rare and rapidly progressive Parkinsonian disorder. ATH434 is also being evaluated in a Phase 2 clinical trial in advanced MSA. In addition, Alterity has a broad drug discovery platform generating patentable chemical compounds to treat the underlying pathology of neurological diseases. The Company is based in Melbourne, Australia, and San Francisco, California, USA. For further information please visit the Company's website at Authorisation & Additional information This announcement was authorized by David Stamler, CEO of Alterity Therapeutics Limited. Investor and Media Contacts: Australia Millie Macdonald Head of Investor Relations and Business Development [email protected] +61 468 304 742 Ana Luiza Harrop [email protected] +61 452 510 255 U.S. Remy Bernarda [email protected] +1 (415) 203-6386 Forward Looking Statements This press release contains 'forward-looking statements' within the meaning of section 27A of the Securities Act of 1933 and of such words as 'expects,' 'intends,' 'hopes,' 'anticipates,' 'believes,' 'could,' 'may,' 'evidences' and 'estimates,' and other similar expressions, but these words are not the exclusive means of identifying suchstatements. Importantfactorsthatcouldcauseactualresultstodiffermateriallyfromthoseindicatedbysuchforward-lookingstatements aredescribedinthesectionstitled'RiskFactors'intheCompany'sfilingswiththeSEC,includingitsmostrecentAnnualReport onForm20-FaswellasreportsonForm6-K,including,butnotlimitedtothefollowing:statementsrelatingtotheCompany's drug development program, including, but not limited to the initiation, progress and outcomes of clinical trials of the Company'sdrugdevelopmentprogram,including,butnotlimitedto,ATH434,andanyotherstatementsthatarenothistorical difficultiesordelaysinfinancing,development,testing,regulatoryapproval,productionandmarketingoftheCompany'sdrug components,including,butnotlimitedto,ATH434,theabilityoftheCompanytoprocureadditionalfuturesourcesoffinancing, unexpected adverse side effects or inadequate therapeutic efficacy of the Company's drug compounds, including, but not limitedto,ATH434,thatcouldslowor prevent productscomingtomarket,the uncertaintyof obtaining patent protectionfortheCompany's intellectualpropertyortradesecrets, the uncertainty of successfully enforcing the Company's patent rights and the uncertainty of the Company freedom to operate. Any forward-looking statement made by us in this press release is based only on information currently available to us and whetherwrittenororal,thatmaybemadefromtimetotime,whetherasaresultofnewinformation,futuredevelopmentsor otherwise.
Yahoo
12-05-2025
- Business
- Yahoo
Alterity Therapeutics Prominently Featured at the International MSA Congress
– ATH434 Phase 2 data demonstrated clinically meaningful efficacy on multiple clinical endpoints – – MSA Atrophy Index (MSAai) enhances MSA diagnosis and monitoring – – bioMUSE Study shows higher α- synuclein concentration is associated with greater burden of orthostatic symptoms – MELBOURNE, Australia and SAN FRANCISCO, May 12, 2025 (GLOBE NEWSWIRE) -- Alterity Therapeutics (ASX: ATH, NASDAQ: ATHE) ('Alterity' or 'the Company'), a biotechnology company dedicated to developing disease modifying treatments for neurodegenerative diseases, today announced that several oral and poster presentations related to Alterity's clinical programs in Multiple System Atrophy (MSA) were featured at the 2025 International MSA Congress. The Congress was presented by Mission MSA, a non-profit organization dedicated to improving the quality of life and building hope for people affected by MSA through support services, educational resources, research funding, and community engagement. 'The MSA Congress gave us an opportunity to share the results of our Phase 2 double-blind trial of ATH434 with prominent MSA clinicians and scientists as well as community members affected by MSA,' said David Stamler, M.D., Chief Executive Officer of Alterity. 'The robust efficacy of ATH434, as indicated by reduced disease severity on the MSA activities of daily living scale along with improvement in key symptoms of MSA and preserved activity in the outpatient setting, continue to generate enthusiasm. Our clinical progress is generating significant excitement, and we are focused on bringing this therapy to patients as quickly as possible.' 'In addition, our colleagues at Vanderbilt University Medical Center presented data from our bioMUSE Natural History Study that highlights the understanding of MSA we have brought to our development program. Because of the variability in MSA presentation and progression and its similarity to Parkinson's disease, it is critical to improve diagnostic and monitoring tools. Through development of a novel imaging biomarker known as the MSA Atrophy Index (MSAai), we have a new tool to measure and track brain volume in individuals with MSA. In a separate presentation, the bioMUSE study demonstrated that α-synuclein levels in the skin increased over the 12-month follow-up period, and that a higher concentration of α-synuclein in skin is associated with greater burden of orthostatic symptoms, a valuable finding that confers insight into disease progression.' Presentation Highlights: ATH434 Slowed Disease Progression in a Phase 2 Study in Multiple System Atrophy Presenter: David Stamler, M.D., Chief Executive Officer of Alterity The oral and poster presentation highlighted data from Alterity's ATH434-201 Phase 2 clinical trial. The clinical analysis included 71 patients who had at least one post-baseline assessment of the key clinical endpoint, the modified UMSARS1 I activities of daily living scale. On this endpoint, ATH434 demonstrated a clinically significant reduction in disease severity versus placebo, with a 48% relative treatment effect at the 50 mg dose (p=0.02)^ and a 30% relative treatment effect at the 75 mg dose (p=0.16) at 52 weeks. Additional efficacy assessments showed improvement consistent with the UMSARS I findings: the Clinical Global Impression of Severity Scale2 demonstrated improvement compared to placebo at both dose levels, with difference at 50 mg achieving nominal statistical significance (p=0.0088). On the Orthostatic Hypotension Symptom Assessment (a patient reported outcome), on average placebo patients worsened by approximately 6 points over 52 weeks whereas both ATH434 treatment groups improved over the same period (p=0.08 at 50 mg, p=0.14 at 75 mg). Baseline differences in disease severity likely explain different response in 50 mg and 75 mg treatment groups. Increased activity in the outpatient setting was observed at both dose levels as compared to placebo with wearable sensors, with clinically meaningful improvements in step count, bouts of walking, total walking time, and total standing time. ATH434 was well tolerated with similar adverse event rates compared to placebo and no serious adverse events attributed to ATH434. Regarding neuroimaging in 61 participants, ATH434 demonstrated target engagement by stabilizing or reducing iron accumulation at both dose levels compared to placebo in MSA affected brain regions. In addition, ATH434 demonstrated trends in reducing brain atrophy at both dose levels compared to placebo. Overall, the study results support continued advancement of ATH434 for the treatment of MSA. MSA Atrophy Index (MSAai): A Quantitative Imaging Marker for Diagnosis and Monitoring of Multiple System AtrophyPresenter: Amy Brown, M.D., M.S., Assistant Professor, Movement Disorders Division, Department of Neurology, Vanderbilt University Medical Center This oral presentation described the MSA Atrophy Index (MSAai) as a promising imaging biomarker that distinguishes MSA from related disorders, correlates with clinical presentation, and tracks disease progression. Its implementation has the potential to enhance MSA diagnosis and monitoring in both clinical trials and clinical practice. The MSAai imaging tool was developed by the team at Vanderbilt University Medical Center as part of the bioMUSE Natural History Study. The study evaluated the utility of volumetric measures and the MSAai in distinguishing early MSA from other movement-related disorders, correlating with clinical presentation, and tracking longitudinal changes in brain structure. The study results showed that fluid biomarkers classified bioMUSE participants into MSA (n=10), Lewy body disorders (n=5; PD or DLB), and α-synuclein-negative (n=2) groups. At baseline, MSA patients had significantly lower LN, brainstem, cerebellum, and MSAai values compared to HC, PD, DLB, and PAF (all p<0.001). The MSAai demonstrated strong group discrimination, correlated with UMSARS scores (ρ=-0.46, p=0.038), and predicted clinical progression (ρ=0.58, p=0.022). Longitudinally, reductions in LN, brainstem, and MSAai volumes were strongly associated with UMSARS progression. Cutaneous Phosphorylated Alpha-Synuclein Deposition Informs Autonomic Function in Individuals with Early-Stage Multiple System AtrophyPresenter: Leah Mann, PhD, Postdoctoral Research Fellow, Vanderbilt University Medical Center This poster presentation evaluated 17 participants from the bioMUSE Natural History Study who met criteria for clinically probable MSA. The study compared α-synuclein deposition in skin at baseline and 12 months later and examined associations between clinical measures and α-synuclein quantitation over the year. The analysis described the relationship between α-synuclein and autonomic function and revealed that cutaneous α-synuclein detection may serve as an effective diagnostic biomarker that can additionally track progression of MSA. Importantly, deposition of α-synuclein may confer insight into symptomatology, as higher α- synuclein concentration is associated with greater burden of orthostatic symptoms. In the analysis, 100% (17/17) of patients exhibited detection of phosphorylated α-synuclein by skin biopsy. Cutaneous α-synuclein deposition significantly increased (p = 0.042) from baseline (mean = 6.59 ± 4.37) to 12-month follow-up (mean = 7.71 ± 4.22). Deposition at 12-month follow-up was positively correlated with Orthostatic Hypotension Questionnaire (OHQ) and Composite Autonomic Symptom Score-31 (COMPASS-31) (OHQ: coefficient = 0.579, p = 0.015; COMPASS-31: coefficient = 0.560, p = 0.024). Presentations will be available on the Alterity Therapeutics website here. About ATH434 Alterity's lead candidate, ATH434, is an oral agent designed to inhibit the aggregation of pathological proteins implicated in neurodegeneration. ATH434 has been shown preclinically to reduce α-synuclein pathology and preserve neuronal function by restoring normal iron balance in the brain in preclinical models. As an iron chaperone, it has excellent potential to treat Parkinson's disease as well as various Parkinsonian disorders such as Multiple System Atrophy (MSA). Phase 1 studies have demonstrated the agent is well tolerated and achieved brain levels comparable to efficacious levels in animal models of MSA. Positive results from the randomized, double-blind, placebo-controlled Phase 2 clinical trial in patients with MSA demonstrated robust clinical efficacy, target engagement on key biomarkers, and a favorable safety profile. A second Phase 2 open-label biomarker trial in patients with more advanced MSA is ongoing. ATH434 has been granted Fast Track Designation by the U.S. FDA, and Orphan Drug Designation by the U.S. FDA and the European Commission for the treatment of MSA. About ATH434-201 Phase 2 Clinical Trial The ATH434-201 Phase 2 clinical trial is a randomized, double-blind, placebo-controlled investigation of 12 months treatment with ATH434 in patients with MSA. The study evaluated the efficacy, safety and pharmacokinetics of ATH434 as well as the effect of ATH434 on neuroimaging and protein biomarkers. Wearable sensors were employed to evaluate motor activities outside of the clinic. The study enrolled 77 adults who were randomly assigned to receive ATH434 50 mg or 75 mg twice daily or matching placebo. The data showed that, compared to placebo, ATH434 produced clinically and statistically significant improvement on the modified Unified Multiple System Atrophy Rating Scale (UMSARS) Part I, a functional rating scale that assesses disability on activities of daily living affected in MSA. Additional efficacy assessments demonstrated improvement consistent with the positive UMSARS Part I findings including trends in improved motor performance on the Parkinson's Plus rating scale, the Clinical Global Impression of Severity Scale, and the Orthostatic Hypotension Symptom Assessment (a patient reported outcome). Wearable sensor data indicated that ATH434 also led to increased activity in an outpatient setting. Biomarkers were used to evaluate potential drug effect and target engagement relative to placebo. Both dose levels reduced iron accumulation in MSA affected brain regions with trends in preservation of brain volume. ATH434 was well tolerated with similar adverse event rates compared to placebo and no serious adverse events attributed to ATH434. Additional information on the Phase 2 trial can be found by Identifier: NCT05109091. About bioMUSE Biomarkers of progression in Multiple System Atrophy (bioMUSE) is a natural history study that aims to track the progression of individuals with MSA, a parkinsonian disorder without approved therapy. The study is being conducted in collaboration with Vanderbilt University Medical Center in the U.S. under the direction of Daniel Claassen, M.D., M.S., Professor of Neurology and Principal Investigator. Natural history studies are important for characterizing disease progression in selected patient populations. The study has provided rich data for optimizing the design of Alterity's randomized ATH434-201 Phase 2 clinical trial and enrolled approximately 20 individuals with clinically probable or clinically established MSA. BioMUSE continues to provide vital information on early stage MSA patients, informs the selection of biomarkers suitable to evaluate target engagement and preliminary efficacy, and delivers clinical data to characterize disease progression in a patient population that mirrors those currently enrolling in the Phase 2 clinical trial. About Multiple System Atrophy Multiple System Atrophy (MSA) is a rare, neurodegenerative disease characterized by failure of the autonomic nervous system and impaired movement. The symptoms reflect the progressive loss of function and death of different types of nerve cells in the brain and spinal cord. It is a rapidly progressive disease and causes profound disability. MSA is a Parkinsonian disorder characterized by a variable combination of slowed movement and/or rigidity, autonomic instability that affects involuntary functions such as blood pressure maintenance and bladder control, and impaired balance and/or coordination that predisposes to falls. A pathological hallmark of MSA is the accumulation of the protein α-synuclein within glia, the support cells of the central nervous system, and neuron loss in multiple brain regions. MSA affects at least 15,000 individuals in the U.S., and while some of the symptoms of MSA can be treated with medications, currently there are no drugs that are able to slow disease progression and there is no cure.1 1Multiple System Atrophy | National Institute of Neurological Disorders and Stroke ( 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 is initially focused on developing disease modifying therapies in Parkinson's disease and related disorders. Alterity recently reported positive data for its lead asset, ATH434, in a Phase 2 clinical trial in participants with Multiple System Atrophy (MSA), a rare and rapidly progressive Parkinsonian disorder. ATH434 is also being evaluated in a Phase 2 clinical trial in advanced MSA. In addition, Alterity has a broad drug discovery platform generating patentable chemical compounds to treat the underlying pathology of neurological diseases. The Company is based in Melbourne, Australia, and San Francisco, California, USA. For further information please visit the Company's website at Authorisation & Additional informationThis announcement was authorized by David Stamler, CEO of Alterity Therapeutics Limited. Investor and Media Contacts: Australia Millie MacdonaldHead of Investor Relations and Business Developmentmmacdonald@ +61 468 304 742 Ana Luiza Harropwe-aualteritytherapeutics@ 452 510 255 +1 (415) 203-6386 Forward Looking Statements This press release contains "forward-looking statements" within the meaning of section 27A of the Securities Act of 1933 and section 21E of the Securities Exchange Act of 1934. The Company has tried to identify such forward-looking statements by use of such words as "expects," "intends," "hopes," "anticipates," "believes," "could," "may," "evidences" and "estimates," and other similar expressions, but these words are not the exclusive means of identifying such statements. Important factors that could cause actual results to differ materially from those indicated by such forward-looking statements are described in the sections titled 'Risk Factors' in the Company's filings with the SEC, including its most recent Annual Report on Form 20-F as well as reports on Form 6-K, including, but not limited to the following: statements relating to the Company's drug development program, including, but not limited to the initiation, progress and outcomes of clinical trials of the Company's drug development program, including, but not limited to, ATH434, and any other statements that are not historical facts. Such statements involve risks and uncertainties, including, but not limited to, those risks and uncertainties relating to the difficulties or delays in financing, development, testing, regulatory approval, production and marketing of the Company's drug components, including, but not limited to, ATH434, the ability of the Company to procure additional future sources of financing, unexpected adverse side effects or inadequate therapeutic efficacy of the Company's drug compounds, including, but not limited to, ATH434, that could slow or prevent products coming to market, the uncertainty of obtaining patent protection for the Company's intellectual property or trade secrets, the uncertainty of successfully enforcing the Company's patent rights and the uncertainty of the Company freedom to operate. Any forward-looking statement made by us in this press release is based only on information currently available to us and speaks only as of the date on which it is made. We undertake no obligation to publicly update any forward-looking statement, whether written or oral, that may be made from time to time, whether as a result of new information, future developments or in retrieving data Sign in to access your portfolio Error in retrieving data Error in retrieving data Error in retrieving data Error in retrieving data
Associated Press
07-05-2025
- Business
- Associated Press
Alterity Therapeutics Announces Multiple Oral and Poster Presentations to be Featured at the International MSA Congress
MELBOURNE, Australia and SAN FRANCISCO, May 07, 2025 (GLOBE NEWSWIRE) -- Alterity Therapeutics (ASX: ATH, NASDAQ: ATHE) ('Alterity' or 'the Company'), a biotechnology company dedicated to developing disease modifying treatments for neurodegenerative diseases, today announced that multiple oral and poster presentations related to Alterity's clinical programs in Multiple System Atrophy (MSA) will be featured at the 2025 International MSA Congress taking place May 9 - 11, 2025 in Boston, MA, USA. The Congress is presented by Mission MSA, a non-profit organization dedicated to improving the quality of life and building hope for people affected by MSA through support services, educational resources, research funding, and community engagement. David Stamler, M.D., Chief Executive Officer of Alterity, commented, 'We are excited to play a prominent role at the MSA Congress which brings together a noteworthy group of physicians and scientists as well as patients and care partners, all of whom are focused on advancing MSA research and care. Mission MSA is one of the primary patient education and advocacy organizations for the disease in the U.S., and we are also proud to support the event as a sponsor. We look forward to presenting our double-blind Phase 2 data for ATH434 as well as our bioMUSE natural history study with our colleagues at Vanderbilt University Medical Center. Our clinical advancements in MSA continue to generate significant interest throughout the community, bolstered by the recent Fast Track Designation for ATH434 that was granted by the US FDA.' Type: Oral Presentation Session: Opening Plenary: Toward Disease Modifying Therapies of MSA Title: ATH434 Slowed Disease Progression in a Phase 2 Study in Multiple System Atrophy Presenter: David Stamler, M.D., Chief Executive Officer of Alterity Date/Time: Friday, May 9, 2025 at 9:10 AM EDT (USA) Type: Oral Presentation Session: Biomarkers in MSA: Imaging Title: MSA Atrophy Index (MSAai): A Quantitative Imaging Marker for Diagnosis and Monitoring of Multiple System Atrophy Presenter: Amy Brown, M.D., M.S., Assistant Professor, Movement Disorders Division, Department of Neurology, Vanderbilt University Medical Center Date/Time: Saturday, May 10, 2025 at 2:55 PM EDT Type: Poster Session Title: ATH434 Slowed Disease Progression in a Phase 2 Study in Multiple System Atrophy Presenter: David Stamler, M.D., Chief Executive Officer of Alterity Date/Time: Saturday, May 10, 2025 at 12:00 PM EDT Poster: #85 Type: Poster Session Title: Cutaneous Phosphorylated Alpha-Synuclein Deposition Informs Autonomic Function in Individuals with Early-Stage Multiple System Atrophy Presenter: Leah Mann, PhD, Postdoctoral Research Fellow, Vanderbilt University Medical Center Date/Time: Saturday, May 10, 2025 at 12:00 PM EDT Poster: #86 About ATH434 Alterity's lead candidate, ATH434, is an oral agent designed to inhibit the aggregation of pathological proteins implicated in neurodegeneration. ATH434 has been shown preclinically to reduce α-synuclein pathology and preserve neuronal function by restoring normal iron balance in the brain in preclinical models. As an iron chaperone, it has excellent potential to treat Parkinson's disease as well as various Parkinsonian disorders such as Multiple System Atrophy (MSA). Phase 1 studies have demonstrated the agent is well tolerated and achieved brain levels comparable to efficacious levels in animal models of MSA. Positive results from the randomized, double-blind, placebo-controlled Phase 2 clinical trial in patients with MSA demonstrated robust clinical efficacy, target engagement on key biomarkers, and a favorable safety profile. A second Phase 2 open-label biomarker trial in patients with more advanced MSA is ongoing. ATH434 has been granted Fast Track Designation by the U.S. FDA, and Orphan Drug Designation by the U.S. FDA and the European Commission for the treatment of MSA. About ATH434-201 Phase 2 Clinical Trial The ATH434-201 Phase 2 clinical trial is a randomized, double-blind, placebo-controlled investigation of 12 months treatment with ATH434 in patients with MSA. The study evaluated the efficacy, safety and pharmacokinetics of ATH434 as well as the effect of ATH434 on neuroimaging and protein biomarkers. Wearable sensors were employed to evaluate motor activities outside of the clinic. The study enrolled 77 adults who were randomly assigned to receive ATH434 50 mg or 75 mg twice daily or matching placebo. The data showed that, compared to placebo, ATH434 produced clinically and statistically significant improvement on the modified Unified Multiple System Atrophy Rating Scale (UMSARS) Part I, a functional rating scale that assesses disability on activities of daily living affected in MSA. Additional efficacy assessments demonstrated improvement consistent with the positive UMSARS Part I findings including trends in improved motor performance on the Parkinson's Plus rating scale, the Clinical Global Impression of Severity Scale, and the Orthostatic Hypotension Symptom Assessment (a patient reported outcome). Wearable sensor data indicated that ATH434 also led to increased activity in an outpatient setting. Biomarkers were used to evaluate potential drug effect and target engagement relative to placebo. Both dose levels stabilized or reduced iron accumulation in MSA affected brain regions with trends in preservation of brain volume. ATH434 was well tolerated with similar adverse event rates compared to placebo and no serious adverse events attributed to ATH434. Additional information on the Phase 2 trial can be found by Identifier: NCT05109091 . About bioMUSE Biomarkers of progression in Multiple System Atrophy (bioMUSE) is a natural history study that aims to track the progression of individuals with MSA, a Parkinsonian disorder without approved therapy. The study is being conducted in collaboration with Vanderbilt University Medical Center in the U.S. under the direction of Daniel Claassen, M.D., M.S., Professor of Neurology and Principal Investigator. Natural history studies are important for characterizing disease progression in selected patient populations. The study has provided rich data for optimizing the design of Alterity's randomized ATH434-201 Phase 2 clinical trial and enrolled approximately 20 individuals with clinically probable or clinically established MSA. BioMUSE continues to provide vital information on early stage MSA patients, informs the selection of biomarkers suitable to evaluate target engagement and preliminary efficacy, and delivers clinical data to characterize disease progression in a patient population that mirrors those currently enrolling in the Phase 2 clinical trial. About Multiple System Atrophy Multiple System Atrophy (MSA) is a rare, neurodegenerative disease characterized by failure of the autonomic nervous system and impaired movement. The symptoms reflect the progressive loss of function and death of different types of nerve cells in the brain and spinal cord. It is a rapidly progressive disease and causes profound disability. MSA is a Parkinsonian disorder characterized by a variable combination of slowed movement and/or rigidity, autonomic instability that affects involuntary functions such as blood pressure maintenance and bladder control, and impaired balance and/or coordination that predisposes to falls. A pathological hallmark of MSA is the accumulation of the protein α-synuclein within glia, the support cells of the central nervous system, and neuron loss in multiple brain regions. MSA affects at least 15,000 individuals in the U.S., and while some of the symptoms of MSA can be treated with medications, currently there are no drugs that are able to slow disease progression and there is no cure.1 1 Multiple System Atrophy | National Institute of Neurological Disorders and Stroke ( 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 is initially focused on developing disease modifying therapies in Parkinson's disease and related disorders. Alterity recently reported positive data for its lead asset, ATH434, in a Phase 2 clinical trial in participants with Multiple System Atrophy (MSA), a rare and rapidly progressive Parkinsonian disorder. ATH434 is also being evaluated in a Phase 2 clinical trial in advanced MSA. In addition, Alterity has a broad drug discovery platform generating patentable chemical compounds to treat the underlying pathology of neurological diseases. The Company is based in Melbourne, Australia, and San Francisco, California, USA. For further information please visit the Company's website at . Authorisation & Additional information This announcement was authorized by David Stamler, CEO of Alterity Therapeutics Limited. Investor and Media Contacts: Australia Millie Macdonald Head of Investor Relations and Business Development [email protected] +61 468 304 742 Ana Luiza Harrop [email protected] +61 452 510 255 U.S. Remy Bernarda [email protected] +1 (415) 203-6386 Forward Looking Statements This press release contains 'forward-looking statements' within the meaning of section 27A of the Securities Act of 1933 and section 21E of the Securities Exchange Act of 1934. The Company has tried to identify such forward-looking statements by use of such words as 'expects,' 'intends,' 'hopes,' 'anticipates,' 'believes,' 'could,' 'may,' 'evidences' and 'estimates,' and other similar expressions, but these words are not the exclusive means of identifying such statements. Important factors that could cause actual results to differ materially from those indicated by such forward-looking statements are described in the sections titled 'Risk Factors' in the Company's filings with the SEC, including its most recent Annual Report on Form 20-F as well as reports on Form 6-K, including, but not limited to the following: statements relating to the Company's drug development program, including, but not limited to the initiation, progress and outcomes of clinical trials of the Company's drug development program, including, but not limited to, ATH434, and any other statements that are not historical facts. Such statements involve risks and uncertainties, including, but not limited to, those risks and uncertainties relating to the difficulties or delays in financing, development, testing, regulatory approval, production and marketing of the Company's drug components, including, but not limited to, ATH434, the ability of the Company to procure additional future sources of financing, unexpected adverse side effects or inadequate therapeutic efficacy of the Company's drug compounds, including, but not limited to, ATH434, that could slow or prevent products coming to market, the uncertainty of obtaining patent protection for the Company's intellectual property or trade secrets, the uncertainty of successfully enforcing the Company's patent rights and the uncertainty of the Company freedom to operate. Any forward-looking statement made by us in this press release is based only on information currently available to us and speaks only as of the date on which it is made. We undertake no obligation to publicly update any forward-looking statement, whether written or oral, that may be made from time to time, whether as a result of new information, future developments or otherwise.
Associated Press
30-04-2025
- Business
- Associated Press
Appendix 4C – Q3 FY25 Quarterly Cash Flow Report
Highlights MELBOURNE, Australia and SAN FRANCISCO, April 30, 2025 (GLOBE NEWSWIRE) -- Alterity Therapeutics (ASX: ATH, NASDAQ: ATHE) ('Alterity' or 'the Company'), a biotechnology company dedicated to developing disease modifying treatments for neurodegenerative diseases, today released its Appendix 4C Quarterly Cash Flow Report and update on company activities for the quarter ending 31 March 2025 (Q3 FY25). David Stamler, M.D., Chief Executive Officer of Alterity, commented, 'The third fiscal quarter of 2025 was one of our most successful periods to date for Alterity Therapeutics. The outstanding results from our ATH434 Phase 2 double-blind trial continue to demonstrate the tremendous potential for ATH434 as a disease modifying treatment for MSA and are resonating throughout the medical community. For individuals living with MSA, there is currently no approved therapy to help stabilize or improve their condition, and we believe that ATH434 may be able to change this paradigm.' 'During the quarter we also completed our open-label Phase 2 trial in patients with more advanced MSA. Data from this study are expected mid-year and will provide insights on the effects of ATH434 treatment in a population that faces severe challenges due to the advanced stage of their illness. We look forward to engaging with the U.S. Food and Drug Administration and European regulatory authorities as we seek to advance the development of ATH434 for individuals living with MSA,' concluded Dr Stamler. Alterity's cash position on 31 March 2025 was A$17.96M with operating cash outflows for the quarter of A$0.73M. In accordance with ASX Listing Rule 4.7C, payments of A$80K made to related parties and their associates included in item 6.1 of the Appendix 4C incorporates directors' fees, consulting fees, remuneration and superannuation at commercial rates. Operational Activities ATH434–201: Randomized, Double-Blind, Placebo Controlled Phase 2 Clinical Trial in MSA On 30 January 2025, Alterity announced the positive topline results led by robust clinical efficacy. Subsequent to the quarter end, on 10 April 2025, an oral presentation was delivered at the American Academy of Neurology (AAN) 2025 Annual Meeting that provided additional data from the trial. Overall, the study results support continued advancement of ATH434 for the treatment of MSA. The ATH434-201 Phase 2 clinical trial is a randomized, double-blind, placebo-controlled investigation of ATH434 in patients with MSA. In addition to evaluating the efficacy of ATH434 and its impact on biomarkers, wearable sensors were employed to evaluate outpatient activity levels relevant to patients with MSA. The study enrolled 77 individuals with MSA who were randomly assigned to receive one of two dose levels of ATH434 or placebo. Participants received treatment for 12 months. The clinical analysis included 71 patients who had at least one post-baseline assessment of the key clinical endpoint, the modified UMSARS1 I activities of daily living scale. On this endpoint, ATH434 demonstrated a clinically significant reduction in disease severity versus placebo, with a 48% relative treatment effect at the 50 mg dose (p=0.02)^ and a 30% relative treatment effect at the 75 mg dose (p=0.16) at 52 weeks. Additional efficacy assessments showed improvement consistent with the UMSARS I findings: the Clinical Global Impression of Severity Scale2 demonstrated improvement compared to placebo at both dose levels, with difference at 50 mg achieving nominal statistical significance (p=0.0088). On the Orthostatic Hypotension Symptom Assessment (a patient reported outcome), on average placebo patients worsened by approximately 6 points over 52 weeks whereas both ATH434 treatment groups improved over the same period (p=0.08 at 50 mg, p=0.14 at 75 mg). Increased activity in the outpatient setting was observed at both dose levels as compared to placebo as measured by wearable sensors, with clinically meaningful improvements in step count, bouts of walking, total walking time, and total standing time. ATH434 was well tolerated with similar adverse event rates compared to placebo and no serious adverse events attributed to ATH434. Regarding neuroimaging, ATH434 demonstrated target engagement by stabilizing or reducing iron at both dose levels compared to placebo in MSA affected brain regions. In addition, ATH434 demonstrated trends in reducing brain atrophy at both dose levels compared to placebo. Overall, the study results support continued advancement of ATH434 for the treatment of MSA. ATH434–202: Open-label, Biomarker Phase 2 Clinical Trial in Advanced MSA On 27 March 2025, Alterity announced that the last patient in the ATH434-202 Phase 2 trial completed the study. The ATH434-202 is an open label study designed to evaluate the safety, efficacy and target engagement of ATH434 in participants with advanced MSA. The 202 study gives Alterity the opportunity to evaluate the effects of ATH434 treatment in an MSA population more advanced than individuals enrolled in the ATH434-201 study. These individuals face severe challenges due to the stage of their illness. The data from this study will help Alterity guide the MSA development program given the differences between the 202 study and the double-blind trial. Alterity expects to report topline data from this study in mid-year 2025. Corporate Activities During the period, Alterity strengthened its balance sheet with a total of approximately A$15.0M raised in gross proceeds through financing transactions. Subsequent to the end of the quarter, an additional A$27.1M was raised upon completion of the second tranche of the two-tranche placement. During the period, Alterity was also granted a settlement in relation to the refund of $1.65M from the Australian Taxation Office under the Australian Government's Research and Development Tax Incentive (R&DTI) Scheme for eligible activities conducted during the financial year ending 30 June 2020. The Company expects to use these funds to accelerate ATH434 regulatory and development activities and to continue research and discovery of novel compounds for additional indications such as Parkinson's disease. 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 is initially focused on developing disease modifying therapies in Parkinson's disease and related disorders. Alterity recently reported positive data for its lead asset, ATH434, in a Phase 2 clinical trial in participants with Multiple System Atrophy (MSA), a rare and rapidly progressive Parkinsonian disorder. ATH434 is also being evaluated in a Phase 2 clinical trial in advanced MSA. In addition, Alterity has a broad drug discovery platform generating patentable chemical compounds to treat the underlying pathology of neurological diseases. The Company is based in Melbourne, Australia, and San Francisco, California, USA. For further information please visit the Company's website at References: 1 UMSARS: Unified Multiple System Atrophy Rating Scale ^ All p-values are uncorrected 2 Clinical Global Impression of Severity: a clinician assessment of the total picture of the subject including the impact of the illness on function and level of distress Authorisation & Additional information This announcement was authorized by David Stamler, CEO of Alterity Therapeutics Limited. Investor and Media Contacts: Australia Millie Macdonald Head of Investor Relations and Business Development [email protected] +61 3 9349 4906 Ana Luiza Harrop [email protected] +61 452 510 255 U.S. Remy Bernarda [email protected] +1 (415) 203-6386 Forward Looking Statements This press release contains 'forward-looking statements' within the meaning of section 27A of the Securities Act of 1933 and of such words as 'expects,' 'intends,' 'hopes,' 'anticipates,' 'believes,' 'could,' 'may,' 'evidences' and 'estimates,' and other similar expressions, but these words are not the exclusive means of identifying suchstatements. Importantfactorsthatcouldcauseactualresultstodiffermateriallyfromthoseindicatedbysuchforward-lookingstatements aredescribedinthesectionstitled'RiskFactors'intheCompany'sfilingswiththeSEC,includingitsmostrecentAnnualReport onForm20-FaswellasreportsonForm6-K,including,butnotlimitedtothefollowing:statementsrelatingtotheCompany's drug development program, including, but not limited to the initiation, progress and outcomes of clinical trials of the Company'sdrugdevelopmentprogram,including,butnotlimitedto,ATH434,andanyotherstatementsthatarenothistorical difficultiesordelaysinfinancing,development,testing,regulatoryapproval,productionandmarketingoftheCompany'sdrug components,including,butnotlimitedto,ATH434,theabilityoftheCompanytoprocureadditionalfuturesourcesoffinancing, unexpected adverse side effects or inadequate therapeutic efficacy of the Company's drug compounds, including, but not limitedto,ATH434,thatcouldslowor prevent productscomingtomarket,the uncertaintyof obtaining patent protectionfortheCompany's intellectualpropertyortradesecrets, the uncertainty of successfully enforcing the Company's patent rights and the uncertainty of the Company freedom to operate. Any forward-looking statement made by us in this press release is based only on information currently available to us and whetherwrittenororal,thatmaybemadefromtimetotime,whetherasaresultofnewinformation,futuredevelopmentsor otherwise.
Associated Press
10-04-2025
- Health
- Associated Press
Alterity Therapeutics Presents Encouraging New Data from its ATH434 Phase 2 Trial in Multiple System Atrophy at the American Academy of Neurology Annual Meeting
– Clinically Meaningful Efficacy Observed on Multiple Assessments – – Confirmed Target Engagement with Reduced Iron Signal in MSA Affected Brain Regions – MELBOURNE, Australia and SAN FRANCISCO, April 10, 2025 (GLOBE NEWSWIRE) -- Alterity Therapeutics (ASX: ATH, NASDAQ: ATHE) ('Alterity' or 'the Company'), a biotechnology company dedicated to developing disease modifying treatments for neurodegenerative diseases, today announced that new presentations related to its Multiple System Atrophy (MSA) program were delivered at the American Academy of Neurology (AAN) 2025 Annual Meeting, one of the premier global neurology meetings. Notably, new data from the ATH434-201 trial was prominently featured via an oral presentation during a Scientific Platform Session on Movement Disorders. 'We are excited to present these new data from our double-blind Phase 2 trial, reinforcing the potential of ATH434 to significantly modify disease progression in MSA. The clinical results from this study are important given the lack of available treatments to address the underlying pathology in MSA,' said, David Stamler, M.D., Chief Executive Officer of Alterity. 'Importantly, we saw clinically meaningful efficacy on multiple measures including the UMSARS1 I activities of daily living scale, the clinical global impression of severity, the orthostatic hypotension symptom assessment, and activity levels from wearable sensors. In addition, new analyses of neuroimaging data show target engagement of ATH434 on iron levels in MSA affected regions of the brain. We look forward to engaging with the U.S. Food and Drug Administration and other regulatory authorities as we seek to advance the development of this potentially disease modifying therapy for individuals living with MSA.' 'In addition, results from the bioMUSE natural history study were presented by our collaborators at Vanderbilt University Medical Center on the use of wearable sensors to assess outpatient activity. These data support the utility of digital outcomes in MSA trials and reinforce the relevance of the findings in our double-blind trial,' concluded Dr. Stamler. Type: Oral Presentation Title: Topline Data from a Randomized, Double Blind, Placebo Controlled Phase 2 Study of ATH434 in Multiple System Atrophy Presenter: Daniel Claassen, M.D., M.S., Professor of Neurology at Vanderbilt University Medical Center Summary: The oral presentation produced additional data on Alterity's ATH434-201 Phase 2 clinical trial. Overall, the study results support continued advancement of ATH434 for the treatment of MSA. The imaging outcomes in n=61 participants indicate a heterogeneous localization of pathology and evidence that ATH434 reduces the iron signal in MSA affected brain regions. The clinical analysis included 71 patients who had at least one-post baseline UMSARS I assessment. The data showed that on the modified UMSARS I rating scale, ATH434 demonstrated a clinically significant treatment effect versus placebo with a 48% decrease in clinical progression at the 50 mg dose (p=0.02)^ and a 30% decrease in clinical progression at the 75 mg dose at 52 weeks. Additional assessments showed improvement: the Clinical Global Impression of Severity Scale2 (7-point scale, higher score worse), including a nominally significant difference at the 50 mg dose (p=0.0088) at 52 weeks. The Orthostatic Hypotension Symptom Assessment (patient reported outcome) showed trends favoring benefit in both groups (p=0.08 at 50 mg dose, p=0.14 at 75 mg dose). Increased activity in the outpatient setting was seen on wearable sensors at both dose levels as compared to placebo, with observed improvements in step count, bouts of walking, total walking time, and total standing time. The benefit on step count at 50 mg was nominally significant (p<0.05). Type: Poster Presentation Title: Association Between Wearable Sensor Data and Clinical Scores in Individuals with Early-stage Multiple System Atrophy Presenter: Ashkan Vaziri, PhD, BioSensics LLC Summary: The poster described the n=18 patients with clinically probable MSA who wore sensors for continuous monitoring of physical activity during our bioMUSE natural history study. The study determined the association between gold-standard clinical measures and sensor-derived parameters of locomotion, posture, and postural transitions at baseline. From this, machine learning models were developed to investigate whether sensor-derived measures could predict scores and performance on clinical evaluations. The study found that sensor-derived metrics, specifically those measuring walking and postural transitions, may increase the understanding of impairments associated with MSA. Across several tests, the participants who had increased walking time, walking episodes, and higher step counts had better scores on the tandem walk and Timed Up and Go (TUG). Additionally, positive relationships were identified between the average sit-to-stand and stand-to-sit durations with motor rating scales such as the MSA Rating Scale (UMSARS-II), the motor section of the Parkinson's Plus Rating Scale (NNIPPS-PPS3), and the TUG. Importantly, regression models established successful prediction of clinical scores, with TUG demonstrating the highest explained variance. The poster presentations will be available on the Alterity website here. About ATH434 Alterity's lead candidate, ATH434, is an oral agent designed to inhibit the aggregation of pathological proteins implicated in neurodegeneration. ATH434 has been shown preclinically to reduce α-synuclein pathology and preserve neuronal function by restoring normal iron balance in the brain. As an iron chaperone, it has excellent potential to treat Parkinson's disease as well as various Parkinsonian disorders such as Multiple System Atrophy (MSA). ATH434 successfully completed Phase 1 studies demonstrating the agent is well tolerated and achieved brain levels comparable to efficacious levels in animal models of MSA. ATH434 recently announced positive results from the randomized, double-blind, placebo-controlled Phase 2 clinical trial in patients with early-stage MSA. A second Phase 2 open-label 2 Biomarker trial in patients with more advanced MSA is ongoing. ATH434 has been granted Orphan Drug Designation for the treatment of MSA by the U.S. FDA and the European Commission. About ATH434-201 Phase 2 Clinical Trial The ATH434-201 Phase 2 clinical trial is a randomized, double-blind, placebo-controlled investigation of 12 months treatment with ATH434 in patients with MSA. The study evaluated the efficacy, safety and pharmacokinetics of ATH434 as well as the effect of ATH434 on neuroimaging and protein biomarkers. Wearable sensors were employed to evaluate motor activities outside of the clinic. The study enrolled 77 adults who were randomly assigned to receive ATH434 50 mg or 75 mg twice daily or matching placebo. The topline data showed that ATH434 produced clinically and statistically significant improvement on the modified UMSARS Part I, a functional rating scale that assesses disability on activities of daily living affected in MSA. In addition to the robust efficacy demonstrated on the UMSARS Part I, trends in improved motor performance were observed on the Parkinson's Plus rating scale and overall benefit was shown on the Clinical Global Impression of Severity at the 50 mg dose. Wearable sensor data indicated that both dose levels of ATH434 led to increased activity in an outpatient setting as compared to placebo. Biomarkers were used to evaluate potential drug effect and target engagement. Both dose levels reduced iron accumulation in MSA affected brain regions and trends in preservation of brain volume were observed relative to placebo. Additional information on the Phase 2 trial can be found by Identifier: NCT05109091. About bioMUSE Biomarkers of progression in Multiple System Atrophy (bioMUSE) is a natural history study that aims to track the progression of individuals with MSA, a parkinsonian disorder without approved therapy. The study is being conducted in collaboration with Vanderbilt University Medical Center in the U.S. under the direction of Daniel Claassen, M.D., M.S., Professor of Neurology and Principal Investigator. Natural history studies are important for characterizing disease progression in selected patient populations. The study has provided rich data for optimizing the design of Alterity's randomized ATH434-201 Phase 2 clinical trial and enrolled approximately 20 individuals with clinically probable or clinically established MSA. BioMUSE continues to provide vital information on early stage MSA patients, informs the selection of biomarkers suitable to evaluate target engagement and preliminary efficacy, and delivers clinical data to characterize disease progression in a patient population that mirrors those currently enrolling in the Phase 2 clinical trial. About Multiple System Atrophy Multiple System Atrophy (MSA) is a rare, neurodegenerative disease characterized by failure of the autonomic nervous system and impaired movement. The symptoms reflect the progressive loss of function and death of different types of nerve cells in the brain and spinal cord. It is a rapidly progressive disease and causes profound disability. MSA is a Parkinsonian disorder characterized by a variable combination of slowed movement and/or rigidity, autonomic instability that affects involuntary functions such as blood pressure maintenance and bladder control, and impaired balance and/or coordination that predisposes to falls. A pathological hallmark of MSA is the accumulation of the protein α-synuclein within glia, the support cells of the central nervous system, and neuron loss in multiple brain regions. MSA affects at least 15,000 individuals in the U.S., and while some of the symptoms of MSA can be treated with medications, currently there are no drugs that are able to slow disease progression and there is no cure.4 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 is initially focused on developing disease modifying therapies in Parkinson's disease and related disorders. Alterity recently reported positive data for its lead asset, ATH434, in a Phase 2 clinical trial in participants with Multiple System Atrophy (MSA), a rare and rapidly progressive Parkinsonian disorder. ATH434 is also being evaluated in a Phase 2 clinical trial in advanced MSA. In addition, Alterity has a broad drug discovery platform generating patentable chemical compounds to treat the underlying pathology of neurological diseases. The Company is based in Melbourne, Australia, and San Francisco, California, USA. For further information please visit the Company's website at 1 UMSARS: Unified Multiple System Atrophy Rating Scale ^ All p-values are uncorrected 2 Clinical Global Impression of Severity: a clinician assessment of the total picture of the subject including the impact of the illness on function and level of distress 3 NNIPPS-PPS: Natural History and Neuroprotection in Parkinson Plus Syndromes - Parkinson Plus Scale Authorisation & Additional information This announcement was authorized by David Stamler, CEO of Alterity Therapeutics Limited. Investor and Media Contacts: Australia Ana Luiza Harrop [email protected] +61 452 510 255 U.S. Remy Bernarda [email protected] +1 (415) 203-6386 Forward Looking Statements This press release contains 'forward-looking statements' within the meaning of section 27A of the Securities Act of 1933 and section 21E of the Securities Exchange Act of 1934. The Company has tried to identify such forward-looking statements by use of such words as 'expects,' 'intends,' 'hopes,' 'anticipates,' 'believes,' 'could,' 'may,' 'evidences' and 'estimates,' and other similar expressions, but these words are not the exclusive means of identifying such statements. Important factors that could cause actual results to differ materially from those indicated by such forward-looking statements are described in the sections titled 'Risk Factors' in the Company's filings with the SEC, including its most recent Annual Report on Form 20-F as well as reports on Form 6-K, including, but not limited to the following: statements relating to the Company's drug development program, including, but not limited to the initiation, progress and outcomes of clinical trials of the Company's drug development program, including, but not limited to, ATH434, and any other statements that are not historical facts. Such statements involve risks and uncertainties, including, but not limited to, those risks and uncertainties relating to the difficulties or delays in financing, development, testing, regulatory approval, production and marketing of the Company's drug components, including, but not limited to, ATH434, the ability of the Company to procure additional future sources of financing, unexpected adverse side effects or inadequate therapeutic efficacy of the Company's drug compounds, including, but not limited to, ATH434, that could slow or prevent products coming to market, the uncertainty of obtaining patent protection for the Company's intellectual property or trade secrets, the uncertainty of successfully enforcing the Company's patent rights and the uncertainty of the Company freedom to operate.
