David Mazzo
Analyst · H.C. Wainwright
No, I mean, Sara, that's the frustrating - the frustrating situation. So we have, I would say tacit [ph] agreement with FDA, and certainly, you know, a strong database that indicates that NORDA is a - is orphan in size. Alright, it doesn't have an orphan designation, but there's somewhere between 30,000 and 100,000 available patients in the United States. And so for something of that size, you know, doing a 400 patient clinical trial is enormous. And then when you make that study design, essentially give the patient or the subject a 50% chance of being randomized to a non-treatment arm. These are patients who are having seven plus angina episodes a day. And with - as the name implies, no option, nothing's working, everything's refractory, they're not going to tolerate being randomized the standard of care, which is nothing or to placebo, they'll drop out. So you know, there's no point in us initiating a trial, which, as suggested by FDA, by our best guests would cost over $70 million, but have a very, very low probability of ever being able to be completely enrolled. So we're working with them at CEBER [ph] to see if we could come to an agreement on a study size that's much smaller, and with a design that is more attractive to get people to join the trial. And if we can't get there, for whatever reason, then we simply it would be bad business to run that trial. So we're still in discussion we haven't given up. But you know, it's been slow going, mostly because FDA has been preoccupied with lots of other things this last year. But we'll keep at it. And hopefully one day we'll be able to reach agreement on the pivotal trial design that we can actually execute.