LONDON – The latest tranche of data from an array of large-scale COVID-19 studies running in the U.K. provides real-world evidence that vaccines have a dramatic effect in preventing hospitalization and death, but that there are a very small number of vaccine failures. The data cover 3,842 people who received a vaccine and subsequently were admitted to the hospital between Dec. 8, 2020, when the national vaccination rollout began, and the data cutoff of April 10, 2021.
LONDON – A large scale U.K. study looking at the impact of COVID-19 vaccinations on antibody responses and new infections in 373,402 people in the general population has shown a single dose of vaccine cut infections by 65%.
Astrazeneca plc’s saga of its COVID-19 vaccine continued this week with the European Commission (EC) deciding to begin legal action against the Cambridge, U.K.-based company, claiming it has failed to deliver doses in line with its contract.
Respiratory syncytial virus, which puts millions of otherwise healthy infants in the hospital each year, could soon face a new foe. Top-line results from a phase III test of the extended half-life monoclonal antibody nirsevimab, developed by Astrazeneca plc and Sanofi SA, found it reduced lower respiratory tract infections requiring medical attention due to the virus in both healthy preterm and term infants.
As part of a U.S. FDA evaluation of confirmatory trials for anti-PD-1/PD-L1 antibodies, the agency’s Oncologic Drugs Advisory Committee (ODAC) is being asked this week to consider whether three blockbuster biologics should continue to be available for certain cancer indications for which they received accelerated approval. At question is whether the data from the confirmatory trials for the Roche Group’s Tecentriq (atezolizumab), Merck & Co. Inc.’s Keytruda (pembrolizumab) and Bristol Myers Squibb Co.’s Opdivo (nivolumab) has proved sufficient benefit in particular indications and, if not, whether alternative or ongoing trials could do so.
DUBLIN – The European Medicines Agency (EMA) has reiterated its support for Astrazeneca plc’s Vaxzervia COVID-19 vaccine, following an interim analysis of a data review, which the agency’s Committee on Human Medicinal Products (CHMP) has conducted over the past two weeks.
LONDON – A large scale U.K. study looking at the impact of COVID-19 vaccinations on antibody responses and new infections in 373,402 people in the general population has shown a single dose of vaccine cut infections by 65%. Symptomatic infections fell by 74% and infections with no reported symptoms by 57%, 21 days after receiving the first dose of either Astrazeneca plc’s or Pfizer Inc./Biontech SE’s vaccine.
In addition to safety questions about its COVID-19 vaccine, Johnson & Johnson is facing manufacturing challenges as a key partner, Emergent Biosolutions Inc., has yet to get FDA approval to manufacture or distribute the vaccine or its components in the U.S. That approval could be awhile in coming. On April 21, a day after completing its onsite inspection of Emergent’s Bayview plant in Baltimore, Md., the FDA released Form 483 from its inspection, revealing nine observations related to cross-contamination issues, lack of employee training and poorly designed and maintained facilities.
LONDON – The EMA’s safety committee has concluded that unusual blood clots with low blood platelets are a rare side effect of Johnson & Johnson Inc.’s COVID-19 vaccine and that a warning should be added to the label. The decision is based on all available evidence, which currently consists of eight reports from the U.S. of serious cases of thrombosis, one of which was fatal. All cases were in people under 60 years of age, and within three weeks after vaccination, the majority in women. One case occurred during the clinical trials.
As COVID-19 deaths across the globe top 3 million, with more than 1 million in Europe alone, the global demand is increasing for mRNA vaccines, even as sponsors of adenovirus vaccines push back against ongoing safety concerns. Last week, the World Health Organization’s (WHO) Regional Office for Europe reported that the confirmed COVID-19 death toll for the region had surpassed 1 million, with 1.6 million new cases being reported every week. More than 171 million doses of COVID-19 vaccines have been administered in the region, translating to nearly 13% of the European population receiving one dose and close to 6% completing both doses of the vaccines.
