Two phase III studies in China testing Gilead Sciences Inc.’s antiviral drug, remdesivir, in patients with COVID-19 infection have been halted after Chinese authorities reported a lack of eligible patients. Other studies, including trials sponsored by the Foster City, Calif.-based company, remain ongoing.
The collection of nasal and throat swab samples to detect the presence or absence of the novel coronavirus SARS-CoV-2 has proven problematic on a few fronts, particularly in the U.S. The swabs themselves often have become scarce and difficult to obtain, while health care workers are routinely risking their own health commonly in the absence of proper protective equipment. In addition, sampling difficulties have largely been blamed for a very high false negative rate that could be as much as 25%.
There will be lessons learned aplenty when the COVID-19 pandemic finally breaks, including how serological and molecular testing can be used to maximum effect to corral a future pandemic.
The age of molecular testing for the COVID-19 pandemic is still with us, but the emphasis in the months ahead will be on serological testing as a quicker, more useful mass testing alternative. However, test developers have a number of hurdles to overcome in devising these serological tests, including that antibodies for the virus’s antigens emerge at different times in the disease cycle, just one of several challenges that have to be met in the effort to bring the SARS-CoV-2 virus to heel.
Since April 10, 2020, the FDA has issued emergency use authorizations (EUAs) to several companies that make blood purification devices that can clear excess cytokines in the blood of patients with COVID-19. Monmouth Junction, N.J.-based Cytosorbents Corp.; Lakewood, Colo.-based Terumo BCT Inc.; and Marker Therapeutics AG, a subsidiary of Marker AG, of Zug, Switzerland, have all recently received EUAs for use of their products in adults with confirmed COVID-19 infections who are admitted to intensive care.
Regulatory snapshots, including global submissions and approvals, clinical trial approvals and other regulatory decisions and designations: Advanced Sterilization Products, Axonics, Becton Dickinson, Intact Vascular, The Learning Corp, Mobidiag, Spectral.
DUBLIN – Sanofi SA and Glaxosmithkline plc are lending their considerable weight to the urgent global effort to develop a vaccine for COVID-19 by teaming up to develop an adjuvanted recombinant subunit vaccine that will employ technologies from each company. Paris-based Sanofi is contributing its recombinant spike protein antigen and its baculovirus expression system, which is also the basis of its U.S.-licensed influenza vaccine Flublok. London-based GSK is contributing its pandemic adjuvant technology.
The U.S. FDA’s routine guidance agenda may be badly disrupted by the COVID-19 outbreak, but the agency continues to pump out guidances and emergency use authorizations (EUAs) directed to the pandemic. While the FDA has included only one serological test under the diagnostic EUA paradigm, Rep. Diana DeGette penned a letter inquiring into when the agency intends to move more decisively on serological tests, arguing that the absence of action on this front endangers the nation’s economic health as well as the public’s health.
