Steven Stein
Analyst · Evercore. Please proceed with your question.
Sure. So, Josh. Thanks for the question. So for the quarter, so MF continues to be, if there is about 14,000 patients in any given quarter MF accounts for about 7,000 patients, PV accounts for about 5,000 patients, and others is about 2000 patients in any given quarter. So, the growth, so new patients in total patients for MF grew quarter-over-quarter, for PV grew quarter-over-quarter, for other grew quarter-over-quarter and we can't always break that out for GVHD. How much was accounted for in gross to net was 4% quarter-over-quarter. So, as you know the gross to net in the first quarter has the biggest impact and then it gets better in the second quarter. As far as premium price, I'll turn it over to Hervé and see if he has some comments.
Hervé Hoppenot: So, the situation is the following, is that we have a Phase 3 ongoing, two Phase 3 ongoing in atopic dermatitis with two different concentration being compared to a placebo. So vehicle versus two different concentrations, so that would read in 2020 somewhere next year and we are initiating the vitiligo Phase 3 study. So your comment is -- your question is really about the pricing, is the pricing identical between two indications where for one of them vitiligo we have a first-in-class disease modifying effect, and another atopic dermatitis where there is a fair amount of competition. I think it's important to remember that the duration of treatments are very, very different between the two indications. You heard from Steven that the vitiligo the 24-week data that has been published is one aspect, but the 52 weeks. If the trend continues, we'll show that the duration of treatment should go beyond 24 weeks, where in fact the treatment in atopic dermatitis is in many cases just a few weeks per year if you look at it over a 52 weeks period. So this entire pricing question is not resolved yet. We need to have more data point to be able to make the right decision between the two indications and the different concentrations, and frankly, it will be something that will be done probably during the -- when we see the data in atopic dermatitis. Can we have a premium price on the topical formulation is an excellent question. I frankly believe looking at the Vitiligo data that is accumulating that there is a case to be made about the economic value of this topical ruxolitinib formulation, because it is frankly giving a level of efficacy that is better than what we can see from the data we have, what we can see with alternative treatments that are in fact fairly expensive, so there is, there is a value case that could be made around the vitiligo indication.