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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 week, the US Food and Drug Administration ended the emergency authorization for Eli Lilly’s bebtelovimab, due to new variants against which the treatment is ineffective. Prior to this, bebtelovimab was the only COVID-19 antibody therapy still cleared for use. This news comes after several other antibody therapies were also made ineffective by the growth of new subvariants. While there are other updated antibody therapies in development, they will likely not be authorized for some time. Other COVID-19 treatments, including Paxlovid and Remdesivir, remain available although limitations prevent their wide use. The Coalition for Epidemic Preparedness Innovations (CEPI) has published a new plan for the development of a vaccine for “Disease X,” a pathogen with pandemic potential that has yet been identified. The plan calls for a vaccine within 100 days of the release of its genetic sequence. It was developed in collaboration with international health bodies, vaccine producers, researchers, and regulatory authorities, and identifies steps and investments needed far in advance of the identification of a disease outbreak.New results from a small trial found that a single pill of acoziborole given to participants with sleeping sickness (human African trypanosomiasis) in the late stages of infection has a 95 percent success rate at 18 months posttreatment and a 100 percent success rate among participants with an early-to-intermediary infection. The study, carried out by the Drugs for Neglected Diseases initiative, identifies the dug as a safe, effective oral therapy with incredible strengths compared to the currently used treatment, fexinidazole, which has a lower efficacy rate, must be taken more often, and has several common side effects.

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.A study published last week found that an experimental influenza vaccine that uses messenger RNA (mRNA) technology protected against all known flu subtypes in animals. If found to be successful in humans, the universal vaccine, which would serve as a supplement to annual flu shots, could prepare the immune system to better respond to new flu viruses, reducing the likelihood of severe disease and death. These promising results come after years of efforts to develop a universal flu vaccine. While human trials are expected to begin soon, challenges including potential low tolerability of the mRNA vaccine will need to be addressed before the candidate can progress.A recently published study estimated that approximately 7.7 million people were killed by bacterial pathogens in 2019—the second leading cause of death globally that year. More than half of these deaths resulted from five pathogens: Staphylococcus aureus, Escherichia coli, Streptococcus pneumoniae, Klebsiella pneumoniae, and Pseudomonas aeruginosa. While the highest mortality rates occurred in sub-Saharan Africa, disproportionately high burdens are present throughout low- and middle-income countries, which could be linked to inadequate access to effective antimicrobials (which exist for all the bacteria investigated in the study), among other structural challenges. Despite the high burden of deaths associated with bacterial pathogens, they receive much less funding and attention compared to other diseases. These data underline the need for greater investment into a variety of interventions and innovations, including vaccine candidates, that can address drug-resistant bacterial pathogens.A recent study determined that an antibody (DH1017.IgM) found in pregnant women who were infected with Zika but did not pass the virus to their fetuses can protect mice from the virus and suppress it to an undetectable state in their blood. The study, which began during the 2015 Brazilian Zika outbreak, could lead to the use of the antibody as a therapeutic agent and prophylactic to protect at-risk patients during an outbreak. The research team is working next to discover whether the antibody can prevent transmission from pregnant mice to their offspring and hoping to progress to human trials that include pregnant individuals who are often excluded from drug trials. Preclinical research into other vaccine candidates for Zika are also underway.