Is TDXD in Lung Cancer?

In breast cancer, they're a lot more exquisite in terms of chemo sensitivity. So 5.4 dose was pursued because some investigators and the drug developers thought that you don't need too much dosing for breasts. And there's a no pain, no game kind of concept. But evidently, the Destiny Lung O2 had proven that that 5.4 is just as good and less toxic. It's not exactly the same. A lot of my patients on in the early days of drug development have been dose reduced to 4.4 and they're still responding today.