Merck to Acquire OncoImmune
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“Meaningful new therapeutic options are desperately needed for possibly millions of people around the world who will develop severe or critical COVID-19 disease,” said Dr. Roger M. Perlmutter, President Merck Research Laboratories. “Recent clinical investigations support the view that CD24Fc may provide benefit beyond standard of care therapy for COVID-19 patients requiring oxygen support, and hence will represent an important addition to the Merck pipeline of investigational medicines and vaccines designed to address the COVID-19 pandemic.”
Interim analysis of data from 203 participants (75% of the planned enrollment) reported by OncoImmune indicated that patients with severe or critical COVID-19 treated with a single dose of CD24Fc showed a 60% higher probability of improvement in clinical status, as defined by the protocol, compared to placebo. The risk of death or respiratory failure was reduced by more than 50%. Detailed results will be submitted for publication in a peer-reviewed medical journal.
“Outstanding work by the OncoImmune team has provided compelling evidence regarding the use of CD24Fc in patients with severe and critical COVID-19 in our Phase 3 Trial,” said Yang Liu, PhD, Co-founder and Chief Executive Officer of OncoImmune. “We look forward to working with the scientists and manufacturing engineers at Merck as well as regulators as we seek to accelerate the global development of this potentially important therapy.”
Under the agreement, prior to the completion of the acquisition, OncoImmune will spin-out certain rights and assets unrelated to the CD24Fc program to a new entity to be owned by the existing shareholders of OncoImmune. In connection with the closing of the acquisition, Merck will invest $50 million, and become a minority shareholder, in the new entity.
The closing of the acquisition, which is subject to approval under the Hart-Scott-Rodino Antitrust Improvements Act and other customary conditions, is expected before the end of 2020.
OncoImmune was represented by Goodwin Procter LLP as legal advisor and Guggenheim Securities as financial advisor.
About SAC-COVID Phase 3 Trial
The SAC-COVID Phase 3 clinical trial (NCT04317040) is a randomized, double blind, placebo-controlled trial designed to evaluate the safety and efficacy of CD24Fc in hospitalized patients with COVID-19 requiring oxygen support, including those requiring supplemental oxygen, high flow oxygen, and mechanical ventilation. Participants were randomly assigned into two arms receiving either standard of care plus a single dose of CD24Fc via an intravenous infusion on Day 1 or standard of care plus placebo on Day 1. The multi-center trial was initiated in April 2020 and had enrolled 243 patients when the trial was closed to enrollment in September 2020.
OncoImmune’s lead product is CD24Fc, a first-in-class recombinant fusion protein that targets the innate immune system. Prior to the Phase 3 clinical trial for COVID-19 patients, CD24Fc has been studied for safety in healthy volunteers and in Phase 2 clinical trials for the prevention of graft versus host disease (GVHD) following hematopoietic stem cell transplantation in patients with leukemia. A pivotal Phase 3 clinical trial (NCT04095858) for prophylaxis of GVHD has been initiated nationwide.
About Merck’s ongoing Commitment to COVID-19
Merck has been committed to developing an effective response to COVID-19 since the early stage of the pandemic and is exploring multiple paths to advance the understanding of SARS-CoV-2 infection. In collaboration with Ridgeback Biotherapeutics, Merck is evaluating molnupiravir, an investigational orally available anti-viral candidate, in two Phase 2/3 trials, for the treatment of patients with COVID-19 in both the outpatient and inpatient settings.The company is also conducting clinical trials to evaluate two SARS-CoV-2/COVID-19 vaccine candidates: V590, being developed through a collaboration with IAVI, which utilizes a recombinant vesicular stomatitis vector, and V591 which uses a measles virus vector-based platform.
OncoImmune is a privately-held, clinical-stage biopharmaceutical company that is actively engaged in the discovery and development of novel biopharmaceuticals for the treatment of cancer and autoimmune disease.
The company’s lead therapeutic candidate CD24Fc has a novel mechanism of action that has potential applications to a number of inflammatory diseases and has shown good safety and tolerability in a Phase 1 clinical trial in healthy volunteers. Clinical activity has been observed in two Phase 2 trials in GVHD and the Phase 3 trial in COVID-19. In addition to CD24Fc, OncoImmune has a rich pipeline of immuno-oncology candidates that will be the focus of the new spinout. OncoImmune has initiated a Phase 1 clinical trial evaluating a novel CTLA-4 antibody candidate that selectively eliminates immune suppressive regulatory T cells in the tumor microenvironment while preserving their physiological function to protect host against autoimmune diseases (NCT04140526). Visit www.oncoimmune.com.
For more than 125 years, Merck, known as MSD outside of the United States and Canada, has been inventing for life, bringing forward medicines and vaccines for many of the world’s most challenging diseases in pursuit of our mission to save and improve lives. We demonstrate our commitment to patients and population health by increasing access to health care through far-reaching policies, programs and partnerships. Today, Merck continues to be at the forefront of research to prevent and treat diseases that threaten people and animals – including cancer, infectious diseases such as HIV and Ebola, and emerging animal diseases – as we aspire to be the premier research-intensive biopharmaceutical company in the world. For more information, visit www.merck.com and connect with us on Twitter, Facebook, Instagram, YouTube and LinkedIn.
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