Corvus Pharmaceuticals Initiates Clinical Trial of Novel Immunotherapy for Patients with COVID-19

Nachrichtenquelle: globenewswire
07.07.2020, 13:00  |  228   |   |   

Approach stimulates immune response by activating B cells to enhance antibody production

Safety and scientific basis supported by ongoing cancer clinical trial

Study designed to evaluate anti-viral antibody response in up to 30 COVID-19 patients with mild to moderate symptoms

Company to host conference call and webcast today at 8:30 a.m. ET / 5:30 a.m. PT

BURLINGAME, Calif., July 07, 2020 (GLOBE NEWSWIRE) -- Corvus Pharmaceuticals, Inc. (NASDAQ: CRVS), a clinical-stage biopharmaceutical company, today announced that it has initiated a Phase 1 study to investigate a novel immunotherapy approach for patients with COVID-19. The first cohort of five patients enrolled in the study was treated at Temple University Hospital in Philadelphia, PA. The study is expected to enroll up to 30 patients at several sites in the United States. This follows the U.S. Food and Drug Administration’s (FDA) review and acceptance of the Company’s investigational new drug (IND) application for the COVID-19 study.

Corvus is studying an agonistic (immunostimulatory) humanized monoclonal antibody, designated as CPI-006, which has demonstrated a potential new approach to immunotherapy of infectious diseases and cancer. In both in vitro and in vivo studies in cancer patients, CPI-006 has demonstrated binding to various immune cells and the inducement of a humoral adaptive immune response – B cell activation and lymphocyte trafficking leading to the production of antigen-specific immunoglobulin (IgM and IgG) antibodies. Administration of CPI-006 has also led to increased levels of memory B cells, which are the cells responsible for long-term immunity. The similar production of antibodies and memory cells to pathogens such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes COVID-19, may provide immediate and long-term clinical benefits for patients including shortened recovery time and improved long-term protective immunity.

To date, over 90 cancer patients have been treated with CPI-006 in the Corvus Phase 1/1b study, with dosing as high as 24 mg/kg every three weeks. CPI-006 has been well tolerated in these patients and evidence of B-cell activation and lymphocyte trafficking was observed in patients that received single doses as low as 1 mg/kg. Corvus’ study showed that CPI-006 is associated with increases in memory B cells, the emergence of new B cell clones and, in some patients, the production of novel anti-tumor antibodies. These results have been previously reported in presentations at the Society of Immunotherapy of Cancer annual meeting in 2018 and 2019 and in a presentation at the American Society of Clinical Oncology annual meeting in 2019. CPI-006 was designed to bind to an epitope on an antigen known as CD73. This antigen is known to be involved in lymphocyte migration and activation. CPI-006 binds to a distinct region of CD73 and behaves as an agonist that serves as a signal to activate certain immune cells. As previously reported, binding of CPI-006 affects B cells, T cells and antigen presenting cells. The collection of observed changes are consistent with enhanced antigen recognition and induction of an adaptive immune response.

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