CAJICA, Colombia – Authorities in Brazil released new efficacy data for Sinovac Biotech Ltd.'s COVID-19 vaccine Coronavac that surprised on the downside, suggesting the vaccine could be much less effective than initially indicated for preventing symptomatic infections.

Shares of Eli Lilly and Co. (NYSE:LLY) leapt 11.7% to $185.94, their second biggest gain since 2010, after a phase II trial showed its beta-amyloid-targeting monoclonal antibody, donanemab, appeared to slow by 32% decline in a composite measure of cognition and daily function in patients with early symptomatic Alzheimer’s disease vs. placebo.

CAJICA, Colombia – A phase III trial for an HIV vaccine developed Janssen Vaccines & Prevention BV is finally moving forward in Latin America and elsewhere in the world after a delay of more than a year caused by slow regulatory progress and worsened by a string of COVID-19 lockdowns.

Sarepta Therapeutics Inc.’s miss on a key phase II ambulatory endpoint in its Duchenne muscular dystrophy (DMD) trial may have been caused by a dramatic disparity in functional ability at baseline among older vs. younger patients afflicted with the progressively worsening disorder. In any case, Wall Street had knives out, carving 51% of the value away from shares (NASDAQ:SRPT) of the Cambridge, Mass.-based firm, which closed at $82.29, a loss of $86.66, or 51%.

Alnylam Pharmaceuticals Inc. said the 164-patient Helios-A phase III study with next-generation RNAi drug vutrisiran hit its primary endpoint as well as both secondary goals in the treatment of hereditary transthyretin-mediated amyloidosis with polyneuropathy. The primary endpoint was change from baseline in the modified Neuropathy Impairment Score at nine months as compared to historical placebo data from the Apollo phase III study of Alnylam’s Onpattro, cleared by the FDA for ATTR polyneuropathy in August 2018.