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Alterity Therapeutics (NASDAQ: ATHE) gets positive FDA feedback on ATH434 Phase 3 MSA program

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6-K

Rhea-AI Filing Summary

Alterity Therapeutics reported positive regulatory progress for its lead drug ATH434 in Multiple System Atrophy (MSA). After a Type C Meeting, the FDA provided written feedback supporting the company’s clinical pharmacology and non-clinical plans for a planned Phase 3 pivotal trial.

The company now aims to secure FDA agreement on Chemistry, Manufacturing, and Controls (CMC) and the Phase 3 trial design, with an End-of-Phase 2 meeting targeted for mid-year 2026. ATH434 has already shown clinically meaningful efficacy in a randomized, double-blind, placebo-controlled Phase 2 trial and additional positive data in an open-label Phase 2 study in advanced MSA, and Alterity is preparing to initiate Phase 3.

Positive

  • Regulatory alignment with the FDA on clinical pharmacology and non-clinical elements of the ATH434 Phase 3 program in Multiple System Atrophy, marking tangible progress toward a pivotal trial.
  • ATH434 has demonstrated clinically meaningful efficacy in a randomized, double-blind, placebo-controlled Phase 2 trial in MSA, with additional positive data in an open-label Phase 2 study in advanced disease.
  • An End-of-Phase 2 meeting for ATH434 remains on track for mid-year 2026, providing a clear near-term regulatory milestone for confirming the Phase 3 path.

Negative

  • None.

Insights

Positive FDA feedback advances ATH434 toward Phase 3 in MSA.

Alterity Therapeutics obtained written FDA feedback after a Type C Meeting on its ATH434 program in Multiple System Atrophy. The agency supported the company’s plans for clinical pharmacology and non-clinical development, indicating regulatory alignment in two important technical domains.

This progress is an early but meaningful milestone on the path to a pivotal Phase 3 trial. Remaining steps include securing agreement on Chemistry, Manufacturing, and Controls (CMC) and finalizing Phase 3 trial design. The company expects an End-of-Phase 2 meeting by mid-year 2026, which will be key to confirming the registrational pathway.

ATH434 has already demonstrated clinically meaningful efficacy in a randomized, double-blind, placebo-controlled Phase 2 MSA trial, plus positive data in an open-label Phase 2 in advanced MSA. The regulatory and clinical data together suggest steady advancement of the program, though ultimate approval will depend on Phase 3 outcomes and ongoing FDA interactions.

 

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

FORM 6-K

 

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-163

UNDER THE SECURITIES EXCHANGE ACT OF 1934

 

For the month of March 2026

 

Alterity Therapeutics Limited

(Name of Registrant)

 

Level 14, 350 Collins Street, Melbourne, Victoria 3000 Australia

(Address of Principal Executive Office)

 

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

 

Form 20-F ☒       Form 40-F ☐

 

This Form 6-K is being incorporated by reference into our Registration Statement on Form S-8 (Files No. 333-251073, 333-248980 and 333-228671) and our Registration Statements on Form F-3 (Files No. 333-274816, 333-251647, 333-231417 and 333-250076)

 

 

 

 

ALTERITY THERAPEUTICS LIMITED

(a development stage enterprise)

 

The following exhibits are submitted:

 

99.1

ATH - Alterity Receives Positive FDA Feedback From Type C Meeting

 

1

 

SIGNATURE

 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

 

 

Alterity Therapeutics Limited

     
 

By:

/s/ Julian Babarczy

   

Julian Babarczy

   

Chairman

 

Date: March 30, 2026

2

Exhibit 99.1

 

logo.jpg

 

 

Alterity Therapeutics Receives Positive FDA Feedback Following Type C Meeting on ATH434 Phase 3 Program

 

Alignment reached on key elements of ATH434 Phase 3 development program

 

MELBOURNE, AUSTRALIA AND SAN FRANCISCO, USA 30 March 2026: Alterity Therapeutics (ASX: ATH, NASDAQ: ATHE) (“Alterity” or “the Company”), a biotechnology company dedicated to developing disease modifying treatments for neurodegenerative diseases, today announced it has received positive regulatory feedback following a Type C Meeting with the U.S. Food and Drug Administration (FDA) regarding its planned Phase 3 development program for ATH434 in Multiple System Atrophy (MSA).

 

The Type C Meeting is part of a multidisciplinary strategy to seek alignment with the FDA on readiness to initiate a Phase 3 pivotal trial in MSA. Alterity received written feedback supporting its plans related to the clinical pharmacology and non-clinical development elements of the program.

 

“This meeting confirms alignment with the FDA in two key disciplines and represents an important step toward initiation of the Phase 3 program,” said David Stamler, M.D., Chief Executive Officer of Alterity. “In addition, we will also be seeking agreement with the FDA on Chemistry, Manufacturing, and Controls (CMC) and the Phase 3 trial design. Today’s favorable outcome sets the stage for our future discussions, culminating in an End-of-Phase 2 meeting that remains on track for mid-year 2026.”

 

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 focused on developing disease modifying therapies in Multiple System Atrophy (MSA) and related Parkinsonian disorders. Alterity is preparing to initiate a Phase 3 pivotal trial in MSA, a rare and rapidly progressive disease. ATH434, the Company’s lead asset, has demonstrated clinically meaningful efficacy in a randomized, double-blind, placebo-controlled Phase 2 clinical trial in participants with MSA. Alterity has further reported positive data in its open label Phase 2 clinical trial in participants with 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 www.alteritytherapeutics.com.

 

 

 

 

Authorisation & Additional information

This announcement was authorized by the Board of Alterity Therapeutics Limited.

 

 

Contacts:

 

Investors:

 

Tara Speranza

Head of Investor Relations and Communications

tsperanza@alteritytx.com

 

Remy Bernarda

Investor Relations Advisory Solutions

ir@alteritytx.com

+1 (415) 203-6386

 

Media

Casey McDonald

Tiberend Strategic Advisors, Inc.

cmcdonald@tiberend.com

+1 (646) 577-8520

 

 

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 Companys 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 Companys 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 Companys 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.

 

 

FAQ

What did Alterity Therapeutics (ATHE) announce regarding the FDA and ATH434?

Alterity Therapeutics announced positive feedback from the FDA following a Type C Meeting on its ATH434 program in Multiple System Atrophy. The agency provided written support for the company’s clinical pharmacology and non-clinical development plans, helping prepare for a Phase 3 pivotal trial.

What is ATH434 and which disease is Alterity Therapeutics targeting?

ATH434 is Alterity Therapeutics’ lead drug candidate targeting Multiple System Atrophy, a rare, rapidly progressive neurodegenerative disease. The company focuses on disease modifying treatments and is preparing a Phase 3 pivotal trial in MSA after reporting encouraging Phase 2 clinical results.

What progress has ATH434 shown in clinical trials so far?

ATH434 has demonstrated clinically meaningful efficacy in a randomized, double-blind, placebo-controlled Phase 2 trial in participants with Multiple System Atrophy. Alterity has also reported positive data from an open-label Phase 2 trial in participants with advanced MSA, supporting advancement to Phase 3 planning.

What are the next regulatory steps for Alterity Therapeutics and ATH434?

Next steps include seeking FDA agreement on Chemistry, Manufacturing, and Controls (CMC) and the Phase 3 trial design for ATH434. Alterity expects these interactions to culminate in an End-of-Phase 2 meeting that remains on track for mid-year 2026, guiding the registrational strategy.

How does the FDA Type C Meeting affect Alterity Therapeutics’ Phase 3 plans?

The Type C Meeting provided written FDA feedback supporting key aspects of ATH434’s planned Phase 3 program. Alignment on clinical pharmacology and non-clinical elements reduces regulatory uncertainty in these areas and represents an important step toward initiating the Phase 3 pivotal trial in Multiple System Atrophy.

What therapeutic focus does Alterity Therapeutics (ATHE) have beyond ATH434?

Alterity Therapeutics is a clinical stage biotechnology company focused on disease modifying therapies for Multiple System Atrophy and related Parkinsonian disorders. It also maintains a drug discovery platform generating patentable compounds designed to treat underlying pathology in neurodegenerative diseases beyond its lead candidate ATH434.

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1 document
Alterity Therapeutics Ltd

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