Revelation Biosciences Inc. Announces the Start of a Phase 1 Clinical Study for REVTx 99, an Experimental Treatment for Respiratory Viral Infection, Including COVID 19

-First cohort fully enrolled and dosed-

MENLO PARK, CA, USA I November 16, 2020 I Revelation Biosciences Inc. (Revelation), a clinical stage life sciences company focused on the development of immunologic-based therapies for the prevention and treatment of disease, announced today that the first cohort of its Phase 1 clinical study of REVTx‑99 in healthy volunteers (RVL‑NHV01 study) has completed dosing. Eight study participants were dosed with REVTx-99 (n=6) or placebo (n=2) in Australia starting November 12, 2020.

REVTx‑99 is in development as treatment and prevention of respiratory viral infection, including SARS‑CoV‑2 Infection (COVID‑19). RVL‑NHV01 is a single site, placebo-controlled, single dose, escalating dose study to determine the safety and tolerability of intranasal REVTx‑99 in healthy adult volunteers. Revelation expects to announce the topline data early in the first quarter of 2021.

"We are excited to have initiated the phase 1 study and pleased to have completed rapid enrollment of the first cohort,” said James Rolke, Chief Executive Officer of Revelation. “We are grateful for the continued support of our clinical trial site and study participants, as we all manage through the global pandemic. We look forward to sharing data from all cohorts early next year.”

RVL‑NHV01 will enroll up to 32 participants planned in 4 cohorts. The primary endpoints are to determine the safety and tolerability of escalating intranasal doses of REVTx‑99 in healthy adult volunteers, and to determine the pharmacodynamic effect of REVTx‑99 in healthy adult volunteers as measured by nasal and systemic cytokine levels throughout the course of treatment.

After completion of this study, Revelation plans to initiate a Phase 2 study during the first half of 2021 in early stage COVID‑19 patients at risk for hospitalization.

For more information on Revelation, please visit www.RevBiosciences.com.

About REVTx-99

REVTx‑99 is a proprietary intranasal formulation of phosphorylated hexaacylated disaccharide or PHAD®, a synthetic version of monophosphoryl lipid A. SARS‑CoV‑2 viral proteins have been shown to block the production of interferons, a key part of the innate immune response to viral infection, resulting in worsened clinical outcomes. REVTx‑99 acts by stimulating the innate immune response via interaction with toll-like receptor 4 (TLR4) and activation of the TIR-domain-containing adapter-inducing interferon-β (TRIF) pathway to produce protective cytokines including Type I and Type II interferons. The innate immune system is the first line of defense against invading pathogens such as bacteria and viruses. Toll-like receptors (TLRs) are associated with sentinel cells (e.g. macrophages, dendritic cells) and serve a vital role in the innate immune system response. TLRs recognize repeated molecular patterns associated with pathogens (PAMPS). When a pathogen invades a subject, TLRs recognize PAMPS as foreign and activate the innate immune response, inducing the production of numerous cytokines to combat the invading pathogen and stimulate the adaptive immune response.

About Revelation Biosciences Inc.

Revelation Biosciences, Inc. is a clinical stage life sciences company focused on the development of immunologic‑based therapies for the prevention and treatment of disease. The Company has several product candidates in development. REVTx‑99, the lead therapeutic candidate, is an intranasal immunomodulator for the early treatment of SARS‑CoV‑2 infection. An expansion of REVTx‑99 therapeutic indications is planned, targeting early treatment and prevention of respiratory viral infection such as influenza A or B, parainfluenza, and respiratory syncytial virus. REVTx‑200 is an intranasal immunomodulator adjunct to be used in combination with an intramuscular vaccination for more complete immunity. REVTx‑200 is based on the same technology used in REVTx-99. In addition to the Company’s therapeutic pipeline, Revelation is also developing REVDx‑501, a rapid point of care diagnostic that can be used to detect any respiratory viral infection regardless of virus type without the need for specialized instrumentation. For more information on Revelation, please visit www.RevBiosciences.com.

SOURCE: Revelation Biosciences

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