A new vaccine that uses the native-like HIV-1 envelope (Env) trimer CH505 and a Toll-like receptor (TLR) 7/8 agonist adjuvant, successfully evaluated in macaques, generated potent polyclonal neutralizing antibodies (nAbs) and a high protection against the infection of the homologous simian-human immunodeficiency virus (SHIV).
Vaxart Inc. investors who stuck by company shares Feb. 3 had to swallow a bitter pill – watching shares of the oral vaccine developer (NASDAQ:VXRT) fall 57.8% to $9.85. Driving the trade in part was news that, during a phase I trial, neutralizing antibodies to SARS-CoV-2 were not detected in most of the five subjects given two doses of VXA-CoV2-1, its oral recombinant protein vaccine for the potential prevention of SARS-CoV-2 infection. Furthermore, the company concluded it was "unable to evaluate" a study of the candidate organized by Operation Warp Speed.
LONDON – A pan-European consortium backed by 11 pharma companies is pooling resources in a €77.7 million (US$92.5 million) five-year plan to advance development of therapeutics for COVID-19 and other coronaviruses.