Research Roundup: Moderna shot gets EUA, 2 monoclonal antibody treatments enter phase 3 trials, and first at-home, over-the-counter COVID-19 diagnostic gets EUA

Interested in more global health innovation news? Every week GHTC scours media reports worldwide to deliver essential global health R&D news and content to your inbox. Sign-up now to receive our weekly R&D News Roundup email.Last Wednesday, the United Kingdom authorized AstraZeneca and the University of Oxford’s COVID-19 vaccine, giving the candidate its first regulatory greenlight and providing the country with its second vaccination option. The two-dose AstraZeneca/Oxford vaccine—of which a two-dose, full-strength regimen showed 62 percent efficacy in clinical trials—is low cost and easy to handle, as it can be stored in refrigerators rather than ultra-cold or freezer temperatures that other vaccines require. The United Kingdom has also updated its distribution strategy and will allocate the first vaccine dose of both vaccines to as many people as possible before circling back within 12 weeks, rather than 3, to provide the second dose, instead of holding large amounts in reserve for the second shot. By providing more people with quicker access to the first dose, the hope is to enable the greatest number of eligible people to receive some level of protection in the shortest time possible. Rollout of the AstraZeneca/Oxford vaccine in the United Kingdom begins today.The World Health Organization (WHO) on Thursday issued an emergency use validation for Pfizer and BioNTech’s COVID-19 vaccine, the first COVID-19 vaccine authorization the agency has made. The emergency validation allows some countries to expedite their own regulatory approval processes for the candidate, as well as allows UNICEF and the Pan-American Health Organization to acquire and deliver the vaccine to countries in need. In its statement, WHO also emphasized the need for equitable global access to COVID-19 vaccines and urged a global effort to ensure enough vaccine supply for priority populations around the world. The two-dose Pfizer/BioNTech vaccine, which was shown to have 95 percent efficacy in clinical trials, requires a strict cold chain that could pose a challenge to distribution in many countries.The US Food and Drug Administration (FDA) has approved Ridgeback Biotherapeutics’ Ebanga drug to treat Ebola. The endorsement makes Ebanga the second FDA-approved Ebola therapeutic, following approval of Regeneron’s Inmazeb in October. The two treatments, both antibody therapies, were tested in a trial conducted during the 2018-19 Ebola outbreak in Democratic Republic of the Congo against standard-of-care therapies Zmapp and remdesivir for the control arm. Trial data indicated patients who received Ebanga were more likely to survive than those in the control group. Among those receiving the treatment, 35.1 percent died compared to 49.4 percent in the control group. The 11th and most recent Ebola outbreak in the Democratic Republic of the Congo was identified in June and declared over in mid-November.

Interested in more global health innovation news? Every week GHTC scours media reports worldwide to deliver essential global health R&D news and content to your inbox. Sign-up now to receive our weekly R&D News Roundup email. The US Food and Drug Administration (FDA) on Friday granted emergency use authorization (EUA) to Pfizer and BioNTech’s COVID-19 vaccine candidate, following a vote by the agency’s independent advisory panel last Thursday recommending authorization. Results from the vaccine’s phase 3 clinical trial released in late November showed 95 percent efficacy of the two-dose regimen, leading the companies to submit the candidate to regulatory bodies around the world. The candidate, the first mRNA-based vaccine ever to receive regulatory authorization, is the first COVID-19 vaccine to receive a green light in the United States and has also been authorized in the United Kingdom, Canada, and several other countries. The EUA allows the United States to begin vaccinating people 16 years of age and older in a massive distribution effort prioritizing health care personnel and residents and staff of long-term care facilities.As COVID-19 vaccine approval and rollout becomes a reality, a group of global health organizations is warning that low-income countries will face extreme challenges with vaccine access due to high-income countries securing a vast majority of the global vaccine supply through advance purchase deals with vaccine developers. Data on these agreements and the current vaccine pipeline indicates that nearly 70 low- and middle-income countries will be only able to vaccinate 10 percent of their populations against COVID-19 in the next year. A recent study also outlines the confirmed purchases of at least 6.8 billion doses by primarily high-income countries, creating a risk that lower-income countries will be forced to wait for doses, deepening existing inequities and furthering economic damages. Low-income countries will likely be reliant on doses provided through the COVAX Facility, a global mechanism to speed up development, manufacturing, and equitable distribution of COVID-19 vaccines—an initiative researchers say is being undermined by these unequal vaccine deals.Efforts to develop COVID-19 treatments are moving forward as companies look to add to the arsenal of therapeutics helping to minimize the effects of COVID-19 illness. Since the onset of the pandemic, FDA has authorized a few treatment options, including remdesivir, convalescent plasma, and monoclonal antibodies. Other therapeutics remain under development, including an apelin agonist peptide treatment developed by CohBar, which recently demonstrated efficacy in preclinical models to treat acute respiratory distress, and Sorrento Therapeutics’ intravenous STI-2020, which recently received FDA clearance to begin phase 1 trials as a potential early treatment for COVID-19 outpatients with mild symptoms. Both developers plan to accumulate further safety and efficacy data of the therapeutics in the upcoming months.