Conflict-of-interest disclosure: J.S. reports consulting or serving in an advisory role for AbbVie and AstraZeneca. T.A.E. reports consulting or serving in an advisory role for Roche, Gilead/Kite, Loxo Oncology, BeiGene, Incyte, Secura Bio, and Autolus; honoraria from Roche, Gilead/Kite, Janssen, AbbVie, and AstraZeneca; and research support from Gilead, AstraZeneca, and BeiGene. P.M. reports consulting or serving in an advisory role for Gilead/Kite, Incyte, Janssen, AbbVie, AstraZeneca, BeiGene, Celgene/Bristol Myers Squibb (BMS), Epizyme, Roche, and Takeda. S.C. reports consulting or serving in an advisory role for AbbVie, Adicet Bio, Atara Biotherapeutics, Gilead/Kite, Novartis, Orion Pharma, Pierre Fabre, Roche, and Takeda. K.C. reports consulting or serving in an advisory role for BeiGene, Roche, Celgene/BMS, Takeda, Gilead/Kite, Incyte, Atara, and Janssen. C.P.F. reports consulting or serving in an advisory role for Roche, BeiGene, Gilead/Kite, Incyte, Janssen, Roche, Takeda, AbbVie, AstraZeneca, Atara Bio, and Celgene/BMS, and research support from BeiGene. The remaining authors declare no competing financial interests.