Fig. 1From: Early discontinuation of PD-1 blockade upon achieving a complete or partial response in patients with advanced melanoma: the multicentre prospective Safe Stop trialTimeline & flowchart of study assessments Safe Stop trial for first two years from start of PD-1 blockade. Abbreviations: CR, complete response; CT, computed tomography; HRQoL, Health-related quality of life; PD-1 blockade, programmed cell death protein 1 blockade; PR; partial responseBack to article page