Revive Therapeutics Provides Update of Phase 3 Clinical Study for Bucillamine in the Treatment of COVID-19

Revive Therapeutics Ltd. announced today an update on the Company’s U.S. Food & Drug Administration (“FDA”) Phase 3 clinical trial (the “Study”) (NCT04504734) to evaluate the safety and efficacy of Bucillamine, an oral drug with anti-inflammatory and antiviral properties in patients with mild to moderate COVID-19.

TORONTO, March 20, 2023 (GLOBE NEWSWIRE) -- Revive Therapeutics Ltd. (“Revive” or the “Company”) (OTCQB: RVVTF) (CSE: RVV) (FRANKFURT:31R), a specialty life sciences company focused on the research and development of therapeutics for medical needs and rare disorders, announced today an update on the Company’s U.S. Food & Drug Administration (“FDA”) Phase 3 clinical trial (the “Study”) (NCT04504734) to evaluate the safety and efficacy of Bucillamine, an oral drug with anti-inflammatory and antiviral properties in patients with mild to moderate COVID-19.

On March 8th, 2023, the Company announced that it had received the Type C meeting written responses from the FDA to obtain agreement on the proposed protocol endpoints for the Company’s Study. The FDA recommended that the Company’s proposed primary symptom-based endpoint should cover the evaluation of time to sustained recovery assessed over an appropriate duration, evidence of subjects experiencing resolution of COVID-19 related symptoms and the element of sustained symptom resolution.

After a further in-depth review and analysis of the FDA recommendations with members of the Company’s clinical trial team, including its statistician, regulatory affairs, medical affairs, and clinical research advisors, the Company has decided that in the best interest of the Study to preserve and not compromise the integrity of the Study and keep the blinded data intact to support a potential FDA approval in the future. As such, the Company will remain with the current Study protocol’s primary endpoint of proportion of patients meeting a composite endpoint of hospitalization or death from time of first dose through Day 28 following randomization. Although the Study was originally designed for a ‘hospitalization or death’ primary endpoint, and it completed enrollment of almost three-quarters of the Study’s recruitment goal and recorded specific clinical symptoms (i.e. cough, fever, heart rate, and oxygen saturation), the Study was not designed to take into account all of the symptom assessments and supporting data outlined in the FDA guidelines to warrant a primary symptom-based endpoint for COVID-19 studies.

With the shift in COVID-19 clinical outcomes observed over the course of the pandemic, many patients with COVID-19 were either asymptomatic or experienced mild to moderate illness and could be managed in the outpatient setting. The Company made efforts with the FDA to allow for specific primary symptom-based endpoints, which were aligned with the Study’s available Pre-Dose selection data, such as time to resolution from COVID-19 via the polymerase chain reaction test and proportion of participants with improvement in at least two COVID-19 related clinical symptoms on or before Day 14. As such, it was now determined by the Company’s advisors and clinical team that any deviation from the Study’s original primary endpoint (‘hospitalization or death’) and any unblinding of the Post-Dose selection data of approximately 500 subjects that were randomized in the current Study would jeopardize any chance of potential future regulatory approval. As previously announced, the Data Safety Monitoring Board (“DSMB”) reviewed the Study’s Post-Dose selection data and supported the continuation of the Study in its last meeting as there were no serious adverse events or safety concerns reported.

As a result, the Company is committed to advancing the clinical and commercial development of Bucillamine and plans to pursue the following activities:

  1. Continue discussions with the FDA on a pathway for future potential regulatory approval under the current Study’s objectives, which the FDA and DSMB continue to support;
  2. Work with the Study’s current participating clinical sites and potential new clinical sites to develop a defined recruitment plan that prioritizes subjects recognized to be at higher risk for developing severe COVID-19 to achieve the Study’s objectives;
  3. Determine potential opportunities of unblinding additional data related to the Study for evaluation to support future discussions with the FDA, and further studies for Long COVID or COVID symptom-related conditions, which the FDA provided advice to pursue, and various infectious and respiratory disorders;
  4. Develop reformulation strategies of Bucillamine to expand on its potential therapeutic utility targeting rare disorders that may come with regulatory incentives awarded by the FDA, such as orphan drug (i.e. ischemia-reperfusion injury, cystinuria), fast track, and breakthrough therapy designations; and
  5. Secure alliances with strategic partners, including pharmaceutical companies, to achieve Bucillamine’s full commercial potential.

The Company is not making any express or implied claims that its product has the ability to eliminate or cure COVID-19 (SARS-2 Coronavirus) at this time.

About Revive Therapeutics Ltd.

Revive is a life sciences company focused on the research and development of therapeutics for infectious diseases and rare disorders, and it is prioritizing drug development efforts to take advantage of several regulatory incentives awarded by the FDA such as Orphan Drug, Fast Track, Breakthrough Therapy and Rare Pediatric Disease designations. Currently, the Company is exploring the use of Bucillamine for the potential treatment of infectious diseases, with an initial focus on severe influenza and COVID-19. With its acquisition of Psilocin Pharma Corp., Revive is advancing the development of Psilocybin-based therapeutics in various diseases and disorders. Revive’s cannabinoid pharmaceutical portfolio focuses on rare inflammatory diseases and the company was granted FDA orphan drug status designation for the use of Cannabidiol (CBD) to treat autoimmune hepatitis (liver disease) and to treat ischemia and reperfusion injury from organ transplantation. For more information, visit

For more information, please contact:

Michael Frank
Chief Executive Officer
Revive Therapeutics Ltd.
Tel: 1 888 901 0036

Neither the Canadian Securities Exchange nor its Regulation Services Provider has reviewed or accepts responsibility for the adequacy or accuracy of this release.

Cautionary Statement

This press release contains ‘forward-looking information’ within the meaning of applicable Canadian securities legislation. These statements relate to future events or future performance. The use of any of the words “could”, “intend”, “expect”, “believe”, “will”, “projected”, “estimated” and similar expressions and statements relating to matters that are not historical facts are intended to identify forward-looking information and are based on Revive’s current belief or assumptions as to the outcome and timing of such future events. Forward looking information in this press release includes information with respect to the Company’s cannabinoids, psychedelics and infectious diseases programs. Forward-looking information is based on reasonable assumptions that have been made by Revive at the date of the information and is subject to known and unknown risks, uncertainties, and other factors that may cause actual results or events to differ materially from those anticipated in the forward-looking information. Given these risks, uncertainties and assumptions, you should not unduly rely on these forward-looking statements. The forward-looking information contained in this press release is made as of the date hereof, and Revive is not obligated to update or revise any forward-looking information, whether as a result of new information, future events or otherwise, except as required by applicable securities laws. The foregoing statements expressly qualify any forward-looking information contained herein. Reference is made to the risk factors disclosed under the heading “Risk Factors” in the Company’s annual MD&A for the fiscal year ended June 30, 2022, which has been filed on SEDAR and is available under the Company’s profile at

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