Cortexyme, Inc. (Nasdaq: CRTX), a company advancing a pivotal trial in Alzheimer’s disease with top-line data expected in the fourth quarter of 2021 and a growing pipeline of therapeutics for degenerative diseases, announced that it will present two poster presentations covering an update from its pivotal Phase 2/3 GAIN Trial of atuzaginstat, in addition to new data demonstrating the upstream role that P. gingivalis plays in key pathology of Alzheimer’s disease, at the Alzheimer's Association International Conference® 2021 (AAIC®) taking place July 26-30, 2021, in Denver, Colorado, as well as virtually.

AAIC 2021 Poster Presentation Details

Topic: An update and baseline data from the Phase 2/3 GAIN trial of COR388 (atuzaginstat), a novel bacterial virulence factor inhibitor for the treatment of Alzheimer’s Disease

• Presenter: Michael Detke, MD, PhD, Cortexyme’s Chief Medical Officer

• Authors: Michael Detke, MD, PhD¹, Shirin Kapur, PhD¹, Marwan Sabbagh, MD², Mark Ryder, DMD³, Ira Goodman, MD⁴, Debasish Raha, PhD¹, Florian Ermini, PhD¹, Mai Nguyen, PhD¹, Ursula Haditsch, PhD¹, Joanna Bolger¹, Dave Hennings, PhD¹, Kim Perry, PhD⁵, Kelly Ritch, MS⁶, Casey Lynch¹, Hatice Hasturk, DDS, PhD⁶, Leslie J. Holsinger, PhD¹, Stephen Dominy, MD¹

Topic: Examining phospho-tau217 in neuron cultures and CVN mice infected with Porphyromonas gingivalis and effects of gingipain inhibition

• Presenter: Florian Ermini, PhD, Cortexyme’s Associate Director, In Vivo Pharmacology and Translational Biology

• Authors¹: Florian Ermini, PhD, Ursula Haditsch, PhD, Aurora Martinez-Horta, Leo Rodriguez, Sean Broce, Mai Nguyen, PhD, Debasish Raha, PhD, Shirin Kapur, PhD, Leslie Holsinger, PhD, Casey Lynch, Stephen Dominy, MD

Cortexyme’s posters will be available on Monday, July 26, 2021, beginning at 10:00 a.m. Eastern Time (8:00 a.m. Mountain Time) via AAIC 2021’s virtual conference experience here, as well as on the company’s website under the Science section accessible here.

Cortexyme AAIC Symposium – Getting to the Root Cause of Alzheimer’s Disease

In conjunction with AAIC 2021, Cortexyme also will host a corporate sponsored symposium and dinner titled “Getting to the Root Cause of Alzheimer’s Disease: An Innovative, Upstream Approach for Disease Modification” on Tuesday, July 27, 2021, from 5:30 p.m. to 7:30 p.m. Mountain Time at the Hilton Denver City Center in Denver, Colorado. Led by Cortexyme’s Chief Executive Officer, Co-founder, and Chair Casey Lynch and Chief Medical Officer Michael Detke, MD, PhD, the symposium will provide an informative presentation on how Cortexyme is moving beyond the prevailing targets to deliver a game-changing shift in Alzheimer’s disease treatment. For AAIC 2021 registered participants wishing to attend Cortexyme’s symposium in person, please email info@cortexyme.com to sign up. The symposium may be accessed online by registering to attend AAIC 2021 through its virtual conference experience here.

About Cortexyme

Cortexyme, Inc. (Nasdaq: CRTX) is a clinical stage biopharmaceutical company pioneering upstream therapeutic approaches designed to improve the lives of patients diagnosed with Alzheimer’s and other degenerative diseases. The company is advancing its disease-modifying pivotal GAIN Trial in mild to moderate Alzheimer's disease with top-line data expected in the fourth quarter of 2021, in addition to growing a proprietary pipeline of first-in-class small molecule therapeutics for Parkinson’s disease, periodontitis, and other diseases with high unmet clinical need. Cortexyme’s lead program targets a specific, infectious pathogen called P. gingivalis found in the brain and other organs and tied to degeneration and inflammation in humans and animal models. The company’s causation evidence for Alzheimer’s disease and the mechanism of its novel therapeutic has been independently replicated and confirmed by multiple laboratories around the world, as well as published in peer-reviewed scientific journals. To learn more about Cortexyme, visit www.cortexyme.com or follow @Cortexyme on Twitter.

Forward-Looking Statements

Statements in this news release contain “forward-looking statements” that are subject to substantial risks and uncertainties. Forward-looking statements contained in this news release may be identified by the use of words such as “anticipate,” “expect,” “believe,” “will,” “may,” “should,” “estimate,” “project,” “outlook,” “forecast,” or other similar words. Examples of forward-looking statements include, among others, statements we make regarding our business plans, strategy, timeline, prospects, and milestone expectations; the timing and success of the company’s clinical trials and related data, including with respect to the GAIN and REPAIR Trials; the potential of atuzaginstat to treat Alzheimer’s disease, periodontal disease, and other potential indications; the timing of announcements and updates relating to its clinical trials and related data; the potential therapeutic benefits, safety and efficacy of the company’s product candidate or library of compounds; and statements about its ability to obtain, and the timing relating to, regulatory submissions and approvals with respect to the company’s drug product candidate. Forward-looking statements are based on Cortexyme’s current expectations and are subject to inherent uncertainties, risks, and assumptions that are difficult to predict and could cause actual results to differ materially from what the company expects. Further, certain forward-looking statements are based on assumptions as to future events that may not prove to be accurate. Factors that could cause actual results to differ include, but are not limited to, the risks and uncertainties described in the section titled “Risk Factors” in Cortexyme’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (SEC) on March 1, 2021, its Quarterly Report on Form 10-Q filed with the SEC on May 6, 2021, and other reports as filed with the SEC. Forward-looking statements contained in this news release are made as of this date, and Cortexyme undertakes no duty to update such information except as required under applicable law.

^{(1) Cortexyme, South San Francisco, CA; (2) Cleveland Clinic, Las Vegas; (3) UCSF, San Francisco, CA; (4) Bioclinica, Orlando, FL; (5) Innovative Analytics, Portage, MI; (6) Datafy Clinical R & D}

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