RE: New ACTIV-2 sub-study ‘involving’ SNG0014 Nov 2021 10:23
A5404 is a phase 4, open-label study that aims to learn about the difference in neutralizing antibody (NAb) responses to mRNA-based COVID-19 vaccines among participants with prior SARS-CoV-2 infection who participated in ACTIV-2 (who either received an investigational COVID-19 treatment or placebo or active comparator) and participants who have no history of COVID-19 and did not participate in ACTIV-2. A5404 will enroll 70 participants each from five different ACTIV-2 therapy groups and up to 70 participants without prior history of COVID-19 for each ACTIV-2 therapy group.
In the first cohort, ACTIV-2 participants will either receive the Moderna COVID-19 vaccine through the study or the Moderna or Pfizer COVID-19 vaccine at a community site. They will receive their vaccine 30-240 days after their last day of ACTIV-2 study treatment.
In the second cohort, participants without history of prior COVID-19 will receive the Moderna COVID-19 vaccine through the study.
All participants will have their blood collected and their immune responses measured as close to when the vaccine is administered as feasible and at eight and 20 weeks and one and two years after the first vaccine dose.
My take on this - an interesting question that will take ages to report and not seminal to us. Basically looking at antibody response to vaccination in those who have never had COVID (up to 350 individuals), versus those who were randomised to be given placebo/comparator arm(RegenCOV) in ACTIV 2/3, versus those who had one of the investigational treatments (70 per investigational drug). These include 70 who had SNG001, one of 5 drugs looked at (3 promoted to P3, and 2 under consideration of promotion)