Martine Rothblatt
Analyst · ISI group
Yes, sure. Sorry about that. Well, I mean business development is a hard subject to address in just a sound bite type of answer. But the company's business development efforts involve concentrating first and foremost on line extensions for our very successful treprostinil franchise. And the core line extension activities going on there are, of course, the oral treprostinil route of delivery, which from all of our business modeling, we feel quite confident that oral treprostinil's revenue -- peak revenue potential is greater than the sum of Tyvaso plus Remodulin, okay. So it's beholden upon us to put that at the front and foremost of our business development agenda. Another business development activity is being able to make the Remodulin therapy for those patients who end up near the New York Heart Association class IV range of clinical status more enjoyable, if you will, more convenient by the implantable pump, and that implantable pump will hopefully allow more patients to say, yes, I realize that I'm at the end stage of pulmonary hypertension, but I'd like to continue and hope for a really good outcome by having the implantable pump. Because for many people, the ex vivo pump is just too much for them to put up with. So that's a couple of line extension areas just in pulmonary hypertension. Now in addition to that, Dr. Jeffs and his team are doing some very exciting line extension work in terms of, first of all, combination therapy regimens, combining treprostinil with other drugs and even with treprostinil itself, in a way I'll mention in a second, to further expand the market potential. And they're also developing it for indications other than pulmonary hypertension such as critical limb ischemia. So with regard to the combination, we have studies that are in planning or early stages of execution, combining a PDE-5 together with prostacyclin as frontline therapy and comparing that to the PDE-5 alone to be really the first company to provide clinical data to support our belief that pulmonary hypertension should be hit hard and hit early with a combination therapy regimen rather than the sequential treatment paradigm, which is prevalent today. And another very novel therapy that was actually conceptualized by Dr. Lewis Rubin, the key opinion leader in the country, is to combine lower-level oral treprostinil with Tyvaso, inhaled treprostinil, to be able to get both the systemic benefits of treprostinil as well as the pulmonary-selective benefits that come along with Tyvaso. So those are just a quick sketching of the wide range of BD activities that we have just within the treprostinil franchise. Now outside of the treprostinil franchise, we've got some very exciting business development activities going on. We believe that this successful work that has been achieved with the antibody for neuroblastoma, is in fact, extensible -- extendable to cover areas such as metastatic brain cancer, which is a much larger indication. And the IP that we're working together on with NCI, while it's a different antibody, it's in the same group that was studied by them, that we'll be able to once we get our manufacturing capability under way for the 1418, we will expand that franchise into a clinical study for metastatic brain cancer and that will allow UT to branch out beyond just the cardiopulmonary space into the oncology space. Finally, in the antiviral space, we've been really blessed to have exclusive rights to a very broad platform of amino sugars, which are small sugar-like molecules that have the ability to achieve excellent cellular penetration and interfere with viral replication within the endoplasmic reticulum. One thing which I really love about this platform is that it's already ready been proven safe because a number of this on family of drugs that we own the IP to has already been approved for Gaucher's disease, that's a [indiscernible]. And it's in a large number of Gaucher's patients with no untoward effects since it's been approved. So that gives me a lot of comfort right off the bat. And what we're now doing is improving its profile through some liposomal encapsulation of a proprietary method to achieve really peak concentrations of this drug within the endoplasmic reticulum. In vitro studies, which we've completed over the past year have shown a striking efficacy against a wide range of glycosylated viruses, which are actually most viruses, and work has been funded by the NIH and a couple of other government bodies have independently confirmed this work. So the entire antiviral area is another area of great promise for us in the business development radar.