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National Advertising Division Refers Maze Therapeutics to Regulatory Authorities for Failure to Respond to Inquiry

1. Maze faces regulatory review over unresponded advertising claims. 2. Vertex Pharmaceuticals challenged Maze’s claims regarding MZE829's efficacy. 3. Maze declined to participate in the self-regulation process. 4. NAD will refer the issue to government agencies for possible enforcement. 5. Competitiveness in the AMKD treatment space may impact investor sentiment.

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FAQ

Why Bearish?

Regulatory issues can cause investor concerns, similar to past biotech scrutiny examples.

How important is it?

The regulatory challenge directly impacts Maze's market image and investor trust.

Why Short Term?

Immediate regulatory actions could influence short-term stock prices significantly.

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VRTXAMGNBMY
New York, NY, Aug. 27, 2025 (GLOBE NEWSWIRE) -- Following a challenge brought by Vertex Pharmaceuticals Incorporated, BBB National Programs’ National Advertising Division will refer claims made by Maze Therapeutics, Inc. to the appropriate regulatory authorities for review and possible enforcement action for failure to submit a substantive response to the National Advertising Division’s (NAD) inquiry. Vertex and Maze are competitors developing clinical-stage treatments for APOL1-Mediated Kidney Disease (AMKD). At issue for NAD were express and implied claims made by Maze in investor presentations, press releases, and public filings. Vertex requested that NAD review Maze’s claims regarding the efficacy of MZE829, small-molecule compound treatment of AMKD being developed by Maze, as compared to inaxaplin, Vertex’s drug candidate for AMKD. Maze declined to participate in the NAD process, stating that it does not currently sell any product and does not advertise MZE829. Given Maze’s decision not to participate in the self-regulatory process, NAD will refer the matter to the appropriate government agencies. All BBB National Programs case decision summaries can be found in the case decision library. For the full text of NAD, NARB, and CARU decisions, subscribe to the online archive. Pursuant to NAD/NARB Procedures, this release may not be used for promotional purposes. About BBB National Programs: BBB National Programs, a non-profit organization, is the home of U.S. independent industry self-regulation, currently operating more than 20 globally recognized programs that have been helping enhance consumer trust in business for more than 50 years. These programs provide third-party accountability and dispute resolution services that address existing and emerging industry issues, create fair competition for businesses, and a better experience for consumers. BBB National Programs continues to evolve its work and grow its impact by providing business guidance and fostering best practices in arenas such as advertising, child-and-teen-directed marketing, data privacy, dispute resolution, automobile warranty, technology, and emerging areas. To learn more, visit bbbprograms.org. About the National Advertising Division: The National Advertising Division (NAD) of BBB National Programs provides independent self-regulation and dispute resolution services, guiding the truthfulness of advertising across the U.S. NAD reviews national advertising in all media and its decisions set consistent standards for advertising truth and accuracy, delivering meaningful protection to consumers and creating fair competition for business.

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