Kyle Gano
Analyst · Goldman Sachs. Please go ahead
Yeah, let me take your second question first in terms of our reassessment of the prevalence of TD. And, you know, that's something that we haven't looked at for a number of years. And so, you know, I would look at that as more of just an updating our prevalence estimates, you know, using a methodology that's similar and consistent with what we had done previously. The time that we launched in 2017, our estimate was at least 500,000 people in the U.S. with TD. A couple of years later, we updated our estimate to at least 600,000. And fast forward, I think it's been four or five years since the last time we looked at it. And, you know, the numbers of people living with TD continue to grow, I think commensurate with the expanded use of antipsychotics, especially in non-psychotic conditions. And so, in our prepared remarks, we did update the number now to at least 800,000 people with TD in the U.S. And I think that that number is similar to other estimates that are out there and, frankly, maybe a little bit on the low end of the range. So, that's the prevalence story. In terms of the sales team, you know, we certainly felt like the decision to expand our salesforce was in line with the growth of the market. And certainly, as I mentioned in the prepared remarks, consistent with the growth of the prescriber base in TD. And in terms of Huntington, the only part of our commercial team that we didn't expand or change, really, was the neurology team. And the strategy of penetrating that Huntington's opportunity is primarily through our neurology salesforce. On a relative basis, the neurology opportunity is much smaller, excuse me, the Huntington's opportunity is a lot smaller than it is in Tardive Dyskenisia. And yet, there's still significant unmet need in Huntington's Chorea. You may have seen that we've recently presented some data showing the use of INGREZZA in patients that are with Huntington's Chorea a that are also on antipsychotics. And I think that that's some important data to get out there because that is a segment of patients with Huntington's Chorea that are typically not treated with VMAT2 inhibitors. And so, we wanted to show that they have no impact on relative safety, but they can still improve their Chorea movements. And so, overall, the growth driver in the future will continue to be primarily TD, but Huntington's is still an important strategic opportunity for us, especially within the framework of our neurology team.