Dose-escalation patient response. Dose-escalation patient response. Individual patient's target lesion response (A) and time on study (B) are shown as a function of initial dose level. C, A representative sustained partial tumor response in a melanoma patient that was refractory to prior BRAF inhibitor therapy. Horizontal red line in A depicts RECIST v1.1 partial response threshold. b.i.d., twice daily. Ryan J. Sullivan et al. Cancer Discov 2018;8:184-195 ©2018 by American Association for Cancer Research