Revive Therapeutics Announces Filing of FDA Pre-IND Meeting

Revive Therapeutics Ltd. (“Revive” or the “Company”) (CSE:RVV), a life sciences company focused on the research and development of therapeutics for infectious diseases and rare disorders, announced today that it has filed its Pre-Investigational New Drug (“pre-IND”) meeting request with the U.S. Food and Drug Administration (“FDA”) for Bucillamine in the treatment of the coronavirus disease (“COVID-19”). The Company will rely on its previous FDA IND submissions of Bucillamine to expedite communications and obtain FDA acceptance to proceed to a phase 2 clinical study. The Company has previously been granted Phase 2 study approval for the treatment of Gout and Cystinuria with Bucillamine.

Revive, along with the assistance of Pharm-Olam, LLC. is finalizing the clinical study protocol to advance to a Phase 2 clinical trial in the U.S. The proposed Phase 2 clinical study contemplates a multi-center, randomized, double-blind, placebo-controlled, clinical study of Bucillamine in patients with mild to moderate symptoms. The proposed objectives of the study are to evaluate disease course in patients receiving Bucillamine therapy compared to a placebo, the safety of Bucillamine therapy when administered up to 14 days, and the time to clinical improvement in patients with symptoms receiving Bucillamine compared with a placebo.

“We are excited to expedite the clinical investigation of Bucillamine in a proposed phase 2 clinical study in the U.S., and we believe our history with the FDA for Bucillamine will provide a compelling case”, said Michael Frank, Revive’s Chief Executive Officer. “We will also seek to expand the clinical investigation of Bucillamine in Asian regions, with a particular interest in Japan and South Korea where Bucillamine has been prescribed for treating arthritis for over 30 years. We are in discussion with various contract research organizations (‘CRO’) in these regions.”

Innovative therapies to treat and modify the natural course of the disease are urgently needed. Preclinical and clinical studies have demonstrated that reactive oxygen species contribute to the destruction and programmed cell death of pulmonary epithelial cells.1 N-acetyl-cysteine (NAC) has been shown to significantly attenuate clinical symptoms in respiratory viral infections in animals and humans, primarily via donation of thiols to restore antioxidant and to reduce the activity of cellular glutathione 2,3,4,5. Bucillamine (N-(mercapto-2-methylpropionyl)-l-cysteine) has a well-known safety profile and is prescribed in the treatment of rheumatoid arthritis in Japan and South Korea for over 30 years. Bucillamine, a cysteine derivative with two thiol groups, has been shown to be 16 times more potent as a thiol donor in vivo than NAC 6. The drug is non-toxic with high cellular permeability. The basis of the clinical study will analyze if Bucillamine has the potential, via restoration of glutathione activity and other anti-inflammatory activity, to lessen the negative consequences of influenza and SARS CoV2 infection in the lungs and to help treat these conditions.

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 its recent 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 was previously 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 www.ReviveThera.com.

For more information, please contact:

Michael Frank
Chief Executive Officer
Revive Therapeutics Ltd.
Tel: 1 888 901 0036
Email: mfrank@revivethera.com
Website: www.revivethera.com

Neither the Canadian Securities Exchange nor its Regulation Services Provider have reviewed or accept 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 Offering, including the intended use of proceeds. 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, 2019, which has been filed on SEDAR and is available under the Company’s profile at www.sedar.com.

References

1. S Ye et al, Inhibition of Reactive Oxygen Species Production Ameliorates Inflammation Induced by Influenza A Viruses via Upregulation of SOCS1 and SOCS3., American Society for Microbiology. 2015 Mar;89(5):2672-2683).

2. L. Carati et al, Attenuation of influenza-like symptomatology and improvement of cell-mediated immunity with long-term N-acetylcysteine treatment., Eur Respir J. 1997 Jul;10(7):1535-41).

3. M Mata et al, N-acetyl-L-cysteine (NAC) inhibit mucin synthesis and pro-inflammatory mediators in alveolar type II epithelial cells infected with influenza virus A and B and with respiratory syncytial virus (RSV)., Biochem Pharmacol. 2011 Sep;82(5):548-55.

4. D Ungheri et al, Protective effect of n-acetylcysteine in a model of influenza infection in mice., Int J Immunopathol Pharmacol. 2000 Sep-Dec;13(3):123-128.

5. RH Zhang et al, N-acetyl-l-cystine (NAC) protects against H9N2 swine influenza virus-induced acute lung injury., Int Immunopharmacol. 2014 Sep;22(1):1-8).

6. LD Horwitz, Bucillamine: a potent thiol donor with multiple clinical applications, Cardiovasc Drug Rev. 2003 Summer;21(2):77-90).

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