Scott Harris
Analyst · Seamus Fernandez. Go ahead please
Hey, thanks, Seamus. I will answer the first question, and then I will turn to Vipin to answer the second question. So as you know, in that GGG study, the effects on heart rate were striking. Then they announced that with multiple dosing, they saw increases of about 10 pre beats per minute. But actually, in their single ascending dose study earlier than that, they actually got 30 beats per minute. So why is that? Is that because you simply add a glucagon to the molecule? Well, we say a couple of things about that. The first is the amount of glucagon and GGG, as we understand it, and I want to emphasize that is small. That molecule appears to be TIRZEPATIDE, slightly lower ratio of JYP to GLP-1. I think TIRZEPATIDE 15 to one, it looked like based on the data they presented, that is eight to one, but want to emphasize that the ratio of GLP-1 to glucagon that molecule is 10 to one is only one-tenth, the relative amount of activity in that molecule compared to the GLP-1. So if there is any effect of that molecule is the GLP-1, and we have seen those heart rate increases before. How do we explain it and why aren’t we seeing it with our compounds? We believe it is probably the pharmacokinetic effects. If you look at the time to maximal concentration, about compound, as we understand it, as presented in graphs at the meeting, it looks like it is very short about 12-hours. And again, I want to say it is about because I’m estimating it from slides, they present it without actually seeing the raw data. What that means is that when that drug is given, there is a surge of drugs into the bloodstream with higher P concentrations and immediate effect. Contrast that with Pemvidutide where we see a maximal concentration. That is actually several times greater than that not 12-hours but 70-hours with a lower C max. We have estimated that our C max compared to comparative doses of semaglutide is about one-third. So what we have is an onset that is slower and perhaps more gentle, using a non biological term. But we think that that accounts for the lack of heart rate increases. Now, we presented that data at the ADA meeting, that we are not seeing the heart rate increases of semaglutide. It is probable that as we go further in development, because this is a GLP-1 based compound that we will see some increase, that the initial data suggests that it is not going to be significant any more than a GLP-1. But again, I want to emphasize that we have a small number of patients, and we will just observe that as we go. But we think that the heart rate increase that we are seeing with glucagon containing compounds, were not due to glucagon, we think it was nature, the nature of the pharmacokinetics. So for the second question, we will turn that over to Vipin.