Mihael H. Polymeropoulos
Operator
Thank you very much, Chris, for the questions. I will start off with the question of insomnia. And your question had to do on what evidence supports the indication. And second, if approved, what could be the pricing strategy. On the first part, the -- as you know, Tasimelteon has been approved for a chronic indication of Non-24. And of course, more recently, for Smith-Magenis Syndrome. We have shown that Tasimelteon has a significant and large defect on improving sleep in two types of studies. One type of studies is the transient insomnia model based on phase events. There are three studies, a smaller one and two large studies with 5-hour and 8-hour phase events where we're showing a first very significant effect improving key parameters. And the second study is a study, a 4 week duration study in patients with chronic insomnia characterized by difficulties with sleep function. Again, there Tasimelteon was shown to be effective both in the beginning period. This was defined as Stage 1 and 9 as well as 4 weeks later, in significantly improving persistent sleep, or sleep as compared to placebo. The combination of this evidence plus the significant experience for now almost over 8 years, chronically using Tasimelteon for Non-24, we believe supports the indication of treating chronic insomnia with sleep disturbances, likely a support for the short-term indication, given that we have the 4 week study data, but also an opportunity for insomnia disorder with a specification of changes in the sleep schedule, and specifically phase events. So we will be preparing this for submission is a supplemental NDA and we will continue the discussions with the FDA as we prepare that finally, I will turn to your question on gastroparesis and I believe specifically you asked on and I will come back to pricing on Tasimelteon, specifically you asked about the 9 month dog toxicity study and the safety database. As you know, Vanda has conducted a very large group of studies from preclinical toxicology. And therefore the profile of the drug has been started well in short-term and long-term -- starts long-term being a 6 month study. And of course 2 year other studies in mice. These are the . The FDA says that the 9 month dog study is recommended through the guidance, but not required that as we all have found out, there is no alternative they have suggested to that. Nonetheless, our many devaluations to date suggest that is not necessary. And we at Vanda object to conduct toxicology studies in animals, especially in dogs, if they're necessary. And if of course, that there is a significant trend in public opinion to support that, especially with the recent court decision and the raid by the U.S Department of Agriculture in a facility in Virginia, where these dogs were being kept in very difficult conditions. So we believe that we have sufficient and adequate information for the FDA to conduct the review. In terms of safety, we have, again, significant amount of data with exposures up to 3 months and some data with exposures of 6 months. And if you pay since over a year, through the Expanded Access Program. So we believe the combination of these information would classify as adequate to, of course, file and conduct review. But of course, the FDA will not commit either way, up until the application has been submitted in a 60-day review period on the fileability of the application has been concluded. So that's where that stand. I'll go back to your question about if indicate the indication was granted, what would that mean for pricing? Of course, we all know that HETLIOZ is now indicated for two orphan indications. It has a very significant price tag that we have discussed in the past, and our hope was that we can identify other indications where this useful therapeutic can be used, increasing the , and of course, making the drug more affordable. So that's where I would stop this commentary. But then this vision is to make drugs available to patients that need them, and do so and make them -- make the access available again. And that means drugs that are more reasonably priced, where you can do that, given the much larger population of patients that can benefit. Now, what we find intriguing is that well, for many years, insomnia drugs, especially for sleep onset insomnia, have been seen as a sleep promoting agent. I think that is a opportunity with the circadian regulator, like tasimelteon to actually establish a new thinking that it may be that a large number of patients with poor sleep onset insomnia may actually have a change in their sleep schedule, which is because of a circadian challenge. So this may be a circadian etiology within sleep and insomnia, and this is perhaps why this drug has worked and worked very well in the 4 week insomnia . I know longer answers, but please let me know if you any follow-up.