From:  Addition of immune checkpoint inhibitor to standard of care chemoradiotherapy in patients with locally advanced nasopharyngeal carcinoma: a systematic review and meta-analysis

 Characteristics of the studies included in the meta-analysis.

Study (author/year)Study typeNumber of patients [immune checkpoint inhibitor (ICI) group/control]Cancer typeTreatment regimenPrimary outcome measure
CONTINUUMPhase III, randomized controlled trial (RCT)423 total; 209 ICI/214 controlLocally advanced nasopharyngeal carcinoma (LA NPC)Chemotherapy induction (gemcitabine + cisplatin) followed by cisplatin radiotherapy versus standard + sintilimab (ICI)Event-free survival
DIPPERPhase III, RCT450 randomized (226 ICI/224 control); 426 included in safety analysis (205 ICI/221 control)LA NPCChemotherapy induction + concurrent chemotherapy, then camrelizumab versus observationEvent-free survival
Phase II toripalimab trialPhase II, RCT149 total; 99 ICI/50 controlLA NPCNeoadjuvant toripalimab versus placebo, followed by concurrent chemoradiotherapy, then adjuvant toripalimab versus placeboProgression-free survival
Total-998 total; 513 ICI/485 control---