Is MRD a New Complete Response?

As of right now we have MRD as a test, and I think we have plenty of data, which has shown that MRD is a prognostic significance. Once we can start using MRD to tailor therapy, for example, that's where we're going to be able to make a difference. And what do we mean by tail ring therapy? When can we stop treatment? when can we deescalate treatment?"