Gregory Glenn
Analyst · Cantor. Your line is open
Well, I was just going to say that we know this with the Fluzone High-Dose and the Fluzone are have different doses, but they’re egg-based, egg-derived vaccines. The Fluzone quadrivalent vaccine is appropriate for us because we want to compare ourselves to a quadrivalent vaccine. So, the High Dose is not licensed for quadrivalent at this point. And so, we selected the Fluzone regular dose. And that has that we have matched with the strains that were selected for that in our vaccine. So, I think scientifically, these are the comparator is an egg-derived vaccine, and that means that they’ve isolated the virus. They grew it up in eggs and adapted to eggs. They then purified the important proteins. And so, it’s an egg-derived vaccine. Ours is recombinant where we have the sequences from the wild-type circulating strains that we then make the key protein hemagglutanin from those. And so, they are they have perfect fidelity with those strains that are circulating. And they’re selected they’re selected because these are strains that are prominent, especially with respect to the selection difficulties are associated with selecting the A strains, in particular, the H3N2. And so again, I think we had some discussion with that earlier, that the strength of our technology by having a recombinant nanoparticle that’s adjuvant and we get a very broad response. So, we’re much less in fact, we think we can overcome the antigenic drift that might occur between what was selected last based on last year’s surveillance data and what may come in the coming year. And I think that was the reason that the New England Journal published our Phase I data because we showed that precisely that precise situation, where we had a strain selection from the year before, that was not a good match or circulating, and yet, the immune response to our vaccine, based on the functional assay, showed that we were able to neutralize or address the antigenic drift, both the forward drift, we call it, where it was an unpredicted strain that arose. And then looking back, we also had very broad antibody response against those strains. So, we have a fundamentally different technology from what’s licensed. We have a recombinant. It’s a nanoparticle and its adjuvant. And those things are allowing us to, I think, address the major unmet need in older adult influenced immunization this antigenic drift and the egg adaptation and these things are bringing the older adult flu vaccine actually down to very, very low levels. So, I think the CDC and the public health authorities are very interested in having a technology like Novavax’ to address these clinical problems.