Acasti Pharma Provides Update on TRILOGY 1 and TRILOGY 2 Phase 3 Trials of CaPre

Investigation underway into unexpected and inconsistent findings that may have negatively impacted results reported in TRILOGY 1
Announces plans to seek FDA guidance prior to unblinding TRILOGY 2 data, which is expected to delay reporting of TRILOGY 2 topline results until calendar Q3, 2020LAVAL, Quebec, Feb. 10, 2020 (GLOBE NEWSWIRE) — Acasti Pharma Inc. (“Acasti” or the “Company”) (NASDAQ: ACST – TSX-V: ACST), a biopharmaceutical innovator focused on the research, development and commercialization of its prescription drug candidate CaPre® (omega-3 phospholipid) for the treatment of severe hypertriglyceridemia, or HTG (triglyceride blood levels from 500 mg/dL to 1500 mg/dL), today announced that a detailed examination of the Phase 3 TRILOGY 1 results for CaPre  is underway, including specific clinical site audits and an audit of the central testing laboratory.As previously reported, the Company noted a highly unusual placebo response in its topline triglyceride reduction primary endpoint, far greater than seen in any prior omega-3 triglyceride lowering trials, with 5 sites out of the total 54 enrolling sites disproportionately contributing to this placebo response. These sites accounted for about 36% of the 242 patients enrolled in the TRILOGY 1 study. By comparison, TRILOGY 2 was conducted at 71 sites in Canada, Mexico and the United States that enrolled a total of 278 patients. The 5 sites also participated in TRILOGY 2, however these sites accounted for only 12% of the total patients, with the majority of these patients coming from only 3 sites.Despite monitoring activities conducted throughout the TRILOGY 1 trial to ensure adherence to the protocol and identify protocol violations, the Company has subsequently identified some unexpected and inconsistent findings that it believes may have negatively contributed to the overall topline results. These findings are now being further explored via a comprehensive and rigorous review of data and patient medical records by an independent team of auditors. To support this effort, the Company, its independent Clinical Research Organization (CRO) that conducted the TRILOGY studies, its principal investigator Dr. Mozaffarian, and other clinical and regulatory advisors, are conducting a thorough review of all data and records from patients taking both CaPre and placebo. This assessment is well underway, and the Company has also determined that a thorough investigation of the data must be completed and reviewed with the FDA, before the Company can report the findings from TRILOGY 1 and the implications for TRILOGY 2.Consequently, the Company intends to request a meeting with the FDA to discuss the TRILOGY 1 data, and will seek their guidance about how to conduct the analysis of the TRILOGY 2 data prior to unblinding TRILOGY 2. The Company continues to remain blinded to the TRILOGY 2 data. Upon submission of the meeting request, which is expected to be sent to the FDA in calendar Q2, 2020, the FDA will have 75 days to review the findings and provide feedback and guidance. Given the need to complete the audit and review of the TRILOGY 1 data, and obtain FDA feedback, the Company now anticipates the unblinding of the topline results for TRILOGY 2 sometime in calendar Q3 of 2020. Acasti will provide further guidance as to the timing of reporting TRILOGY 2 data based on progress of the audits and feedback from the FDA. Accordingly, key secondary and exploratory endpoints from both TRILOGY 1 and TRILOGY 2 studies, would now be expected as soon as possible after the unblinding of TRILOGY 2 results.If the interpretation of the analyses produced as an outcome of the audits and post-hoc data review are supported by the FDA, and if TRILOGY 2 achieves statistical significance, Acasti believes it may still have a viable path forward to file an NDA for CaPre.Jan D’Alvise, president and CEO of Acasti Pharma, stated, “Taking into account that the audit is still underway, that the data that we are evaluating is still preliminary, and that any findings will be subject to guidance from the FDA, we look forward to concluding the necessary work, which we hope will help us to better understand the unexpected TRILOGY 1 results. While we regret the additional delay in reporting TRILOGY 2 results, given our initial findings, we believe it is critical to conduct a thorough investigation and evaluation of the TRILOGY 1 results. Any learnings we can take from this investigation that may allow us to proactively adjust the SAP for TRILOGY 2, gives us a better chance of accurately reflecting the clinical value that we believe we still see in CaPre. Moreover, we have confirmed that there is established precedent for the FDA accepting post-hoc analyses of study results, assuming the analyses are transparent, well justified and well supported.  We are moving as quickly as possible to gain a greater understanding of the TRILOGY 1 results, and will provide material updates as we learn more information.  Furthermore, we project that our current cash position will now last through calendar 2020, giving us the necessary runway to complete our extended analysis of the TRILOGY program. We remain fully committed to our goal of gaining NDA approval for CaPre, and appreciate the tremendous support and patience of our shareholders.”  About CaPre
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