Vaccine specialists Sanofi SA and Glaxosmithkline plc have been behind the curve throughout the pandemic, with upstarts such as Moderna Inc. and Biontech SE stealing the show with their ground-breaking mRNA technology. While their rivals were beginning to launch the first wave of vaccines early last year, Sanofi and GSK had to reformulate theirs after it failed to produce a strong enough immune response in older people. New results show that the shot, SP-0253, could play a role as a booster but there will be another delay after the companies struggled to recruit enough participants in a crucial phase III trial.

Mitsubishi Tanabe Pharma Corp.'s Medicago Inc. plans to "imminently" seek Health Canada approval for its plant-based COVID-19 vaccine candidate, MT-2766, after top-line phase III results showed an overall vaccine efficacy rate of 71% against all variants of SARS-CoV-2.

LONDON – New research shows the extent to which an individual’s immune response to the SARS-CoV-2 virus is affected by which variants they are initially exposed to, a finding that has consequences for attempts to update vaccines against emerging variants of concern.

The U.S. Court of Appeals for the Federal Circuit struck a blow Nov. 30 to Biogen Inc.’s blockbuster multiple sclerosis (MS) drug, Tecfidera, affirming a lower court’s determination that a patent claiming a method of treating MS was invalid for lack of written description. In two other precedential cases the next day, the appellate court opened the door for Arbutus Biopharma Corp. to seek royalties on Moderna Inc.’s COVID-19 vaccine.