...the phase 1/2 KEYNOTE-022 study investigated the maximum tolerated dose (MTD), safety, and efficacy of pembrolizumab plus trametinib in solid tumours and BRAF wild-type melanoma.....ORR was 40% in concurrent DL1 and 0% in concurrent DL2b….ORR in intermittent DL1 was 33%....The combination had limited antitumour activity, numerically higher ORR with intermittent versus concurrent dosing, and manageable safety.