“…Though imAE onset is variable, most occur during the initial months of therapy [11][12][13][14][15][16]. Whereas imAEs of any grade can occur in up to 90% of patients treated with ICBs as monotherapy [17,20,24,36,42,43,54,56,59,62], the incidence of grade ≥ 3 imAEs can range from 1% to 10% with anti-PD-1/PD-L1 monotherapy [24,43,54,56,59,62] and from 15% to 42% with anti-CTLA-4 monotherapy [17,20,24,36]. Combination therapy with anti-CTLA-4 and anti-PD-1 antibodies is associated with a 40% to 45% incidence of grade ≥ 3 imAEs [24,36].…”