Citing a lack of evidence that it improves survival, the need for ventilation or time to clinical improvement, the World Health Organization (WHO) has advised doctors against using Gilead Sciences Inc.’s antiviral Veklury (remdesivir) to treat COVID-19.

In a world more familiar with the 30% to 70% efficacy rates of seasonal flu vaccines, news of 95% efficacy rates for two of the major late-stage COVID-19 vaccines in development seems thrilling. But do such robust-sounding numbers, the product of relatively early analyses, really merit the enthusiasm they’ve garnered?

PERTH, Australia – Mesoblast Ltd. inked an exclusive global licensing deal with Novartis AG for the development, manufacture and commercialization of Mesoblast’s mesenchymal stromal cell product remestemcel-L, with an initial focus on the acute respiratory distress syndrome, including that associated with COVID-19, just six weeks after the FDA issued a complete response letter for the therapy as a treatment for steroid-refractory acute graft-versus-host disease.

Hot on the heels of news that two vaccines for COVID-19 are nearing market readiness, two companies have broken away from the pack of assay manufacturers to offer quantitative antibody tests that can verify whether the vaccines provide effective, lasting protection. Siemens Healthineers and Imanis Life Sciences both claim to be first to develop scalable, quantitative neutralizing antibody tests.

Concerns about biopharma executives profiting from stock sales aligned with releases of promising COVID-19 vaccine results could result in Congress requiring a cooling-off period for executives’ 10b5-1 plans that provide a safe harbor to insider trading. Testifying in a Nov. 17 hearing before the Senate Banking Committee, SEC Chair Jay Clayton suggested a mandatory period of four to six months between implementing or materially changing a 10b5-1 plan and the first allowed stock sale. He added that the cooling-off period should at least cover a full quarter.