Mitchell Steiner
Analyst · Oppenheimer.
No, no. So, we moved the exploratory arm out of the Phase III, so that the Phase III then becomes simpler, easier. And as you know, every time we add an additional arm, it's another statistical hurdle. So, the idea was just make it clean, do enobosarm monotherapy versus another estrogen blocking agent, which these women that failed [Technical Difficulty]. And so, it's a good control for us to go up against. And third line setting, these women would have exhausted all of these things. And it's pre-chemo and our side effect profile looks pretty good. It looks like an endocrine therapy. It's not a chemotherapy. There's no diarrhea, vomiting, and hair loss and all that stuff. And so, we feel like that's a great spot for us to be. But to move in earlier, that was our thinking. If we're going to do combination therapy – because one of the things the agency asked for is that if you can do combination therapy, you just can't say I'm going to do CDK 4/6 inhibitor and an estrogen receptor blocking agent. They want you to specifically name CDK 4/6 inhibitor. That kind of makes sense, right? Because if you look at the CDK 4/6 inhibitors, palbociclib has a different safety profile than, for example, ribociclib. And so, one of the reasons why palbo is used so much and is the leader is because of its safety profile and because it was first to market. So, that's why in the Phase II – in the combination program, which in the Phase II were very specific, since palbo is being used 80% of the time in first line, then we're going to come in with ademaciclib plus enobosarm and go up against what's standard right now, which is another estrogen receptor blocking agent. And my God, can you imagine if we're in a second line setting and moving enobosarm earlier. So, they're very separate programs, a Phase III program for third line setting, Phase II program to go in earlier. And I think we'll get a lot of credit for good Phase II data because then, at that point, you're just kind of confirming your Phase III. So, essentially, what we've done is we just increased the depth and breadth of the enobosarm program. And there'll be other indications that we'll be able to go into the we'll announce later. But when you're the only game going after the androgen receptor, which is there, in some cases, more prevalent than an estrogen receptor in breast cancer, then we have to continue to explore how we're going to build the indications for the drug.