Cassava Sciences Announces Significant Program Progress and Expected Key Milestones in 2021 for Its Clinical Program in Alzheimer’s Disease
“We started 2021 with tremendous momentum, led by results of a 6-month interim analysis from an open-label study of simufilam, our drug candidate for Alzheimer’s disease,” said
Cassava Sciences’ strategic focus for 2021 is to advance simufilam in a Phase 3 clinical program in Alzheimer’s disease, to expand drug manufacturing capabilities in support of the clinical program, and to continue to lead the Company to deliver the full potential of its product portfolio.
Cassava Sciences’ 2021 Scientific and Clinical Outlook
Cassava Sciences’ product portfolio includes a small molecule drug for the treatment of Alzheimer’s disease, called simufilam, and an investigational blood-based diagnostic to detect and monitor the progression of Alzheimer’s disease, called SavaDx.
Expected progress and key milestones in 2021 across Cassava Sciences’ product portfolio are summarized below.
- Based on recent positive clinical results and inbound demand from clinical sites, patients, and their caregivers,
Cassava Sciencesplans to expand the size of the ongoing open-label study of simufilam. The target enrollment will be increased by up to 50 additional patients with mild-to-moderate Alzheimer’s disease, for a total target enrollment of up to 150 patients. Cassava Scienceshas enrolled approximately 80 patients in the open-label study to date. To accommodate increased enrollment, the Company plans to open new clinical sites across the U.S.and Canada. Cassava Sciencesexpects to announce results of a second interim analysis of the ongoing open-label study when approximately 50 patients complete 12 months of drug treatment. This second interim analysis is expected to include clinical data around long-term safety, cognition and Alzheimer’s-related behavior. Cassava Sciencesplans to initiate a 6-month, double-blind, randomized, placebo-controlled study in patients with Alzheimer’s disease who complete at least one year of open-label treatment with simufilam. This is a Cognition Maintenance Study (CMS), in which patients who complete one year of open-label treatment will subsequently be randomized (1:1) to simufilam or placebo for six months. The CMS is designed to compare simufilam’s effects on cognition and behavior in patients who continue with drug treatment versus those who discontinue drug treatment. For ethical and other reasons, patients who successfully complete the six-month CMS will have the option to receive open-label simufilam.
- Cassava Sciences’ clinical and regulatory strategy for simufilam is progressing as planned. In
January 2021, the Company concluded a successful End-of-phase 2 (EOP2) meeting with the U.S Food and Drug Administration(FDA). The purpose of the EOP2 was to gain general agreement around a Phase 3 program to treat Alzheimer’s disease dementia.
- As a result of the EOP2 meeting,
Cassava Sciencesbelieves its clinical program for simufilam is green-lighted to commence a large, Phase 3 clinical program in patients with Alzheimer’s disease, pending official FDA meeting minutes of the EOP2 meeting. Cassava Sciencesplans to initiate a Phase 3 program of simufilam in Alzheimer’s disease in the second half of 2021.
- Cassava Sciences’ Phase 3 program for simufilam consists of two large, double-blind, randomized, placebo-controlled studies of simufilam in patients with mild-to-moderate Alzheimer’s disease dementia. The Company expects to announce details of its Phase 3 program in Q1 2021, pending official FDA meeting minutes of the EOP2 meeting.
- Cassava Sciences’ first Phase 3 study will evaluate disease-modifying effects in Alzheimer’s disease patients over 18 months. The goal of this study is to show a slower rate of decline in cognition and daily function in patients treated with simufilam, compared to patients treated with placebo.
- Cassava Sciences’ second Phase 3 study will evaluate symptomatic improvement in Alzheimer’s disease patients over 6 months. The goal of this study is to show improvement in cognition and daily function in patients treated with simufilam, compared to patients treated with placebo.
Cassava Sciencesbelieves its manufacturing strategy is on-track to ensure sufficient drug supply for a Phase 3 program, including both drug substance (i.e., active ingredient) and drug product (i.e., oral tablets). Cassava Sciencesexpects to conclude a long-term, commercial drug supply agreement for simufilam with a contract manufacturing organization. The goal is to ensure the integrity of the drug supply chain on a worldwide basis, in compliance with FDA standards. Cassava Sciencesexpects to initiate a validation study with SavaDx, its investigational diagnostic for the detection of Alzheimer’s disease. Cassava Sciencesis in discussions with scientific and clinical advisors about potentially expanding therapeutic indications for simufilam outside of Alzheimer’s disease, but still within neurodegenerative conditions.
Other Expected Milestones and Announcements for 2021
Cassava Sciencesexpects to announce publication of Phase 2b results in a peer-reviewed technical journal.
- Net cash use for full-year 2021 is expected to be in the range of
$20to $25 million, depending on enrollment rates in its clinical programs and other factors. On December 31, 2020, unaudited cash and cash equivalents were approximately $93 million.
A copy of Cassava Sciences’ latest corporate presentation is available on its website https://www.CassavaSciences.com, under the Investors/Presentations page.
About Alzheimer's Disease
Alzheimer’s disease is a progressive brain disorder that destroys memory and thinking skills. Currently, there are no drug therapies to halt Alzheimer’s disease, much less reverse its course. In the
Simufilam is a proprietary, small molecule (oral) drug that restores the normal shape and function of altered filamin A (FLNA), a scaffolding protein, in the brain. Altered FLNA in the brain disrupts the normal function of neurons, leading to Alzheimer’s pathology, neurodegeneration and neuroinflammation. The underlying science for simufilam is published in peer-reviewed journals, including
Simufilam and SavaDx were both developed in-house. Both product candidates are substantially funded by peer-review research grant awards from the
Cassava Sciences’ mission is to discover and develop innovations for chronic, neurodegenerative conditions. Over the past 10 years,
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Cassava Sciences’ open-label study of simufilam in Alzheimer’s disease is funded by clinical research grant #AG065152 from the
The content of this press release is solely the responsibility of
Cassava Sciences Safe Harbor
This news release contains forward-looking statements, including statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, relating to: our strategy and plans; the treatment of Alzheimer’s disease; the status of current and future clinical studies with simufilam, including the interpretation of an interim analysis of open-label study results; planned enrollment and other changes to the open-label program; our intention to initiate a Phase 3 clinical program with simufilam in 2nd half 2021; results of our EOP2 meeting with FDA and the timing of further announcements; our ability to manufacture drug supply for a Phase 3 program and to enter into a long-term commercial drug supply agreement; the timing of validation studies with SavaDx; our ability to expand therapeutic indications for simufilam outside of Alzheimer’s disease; expected cash use in future periods; plans to publish results of a Phase 2b study in a peer-reviewed journal; verbal commentaries made by our employees; and potential benefits, if any, of the our product candidates. These statements may be identified by words such as “may,” “anticipate,” “believe,” “could,” “expect,” “forecast,” “intend,” “plan,” “possible,” “potential,” and other words and terms of similar meaning. Drug development and commercialization involve a high degree of risk, and only a small number of research and development programs result in commercialization of a product. Our clinical results from earlier-stage clinical trials may not be indicative of full results or results from later-stage or larger scale clinical trials and do not ensure regulatory approval. You should not place undue reliance on these statements or any scientific data we present or publish.
Such statements are based largely on our current expectations and projections about future events. Such statements speak only as of the date of this news release and are subject to a number of risks, uncertainties and assumptions, including, but not limited to, those risks relating to the ability to conduct or complete clinical studies on expected timelines, to demonstrate the specificity, safety, efficacy or potential health benefits of our product candidates, the severity and duration of health care precautions given the COVID-19 pandemic, any unanticipated impacts of the pandemic on our business operations, and including those described in the section entitled “Risk Factors” in our Annual Report on Form 10-K for the year ended
4, 5 Source: Alzheimer’s Association. Disease Facts and Figures. https://www.alz.org/media/documents/alzheimers-facts-and-figures-2019-r.pdf
Source: Cassava Sciences, Inc.