PDCD1 and cervical carcinoma: Frenel JS et al. 17 reported that the results of the multicenter clinical trial of the safety and efficacy of anti-PD-1 monoclonal antibody-pembrolizumab in patients with PD-1-positive advanced solid tumors showed that among 24 patients with PD-1-positive advanced cervical cancer who had failed previous treatment, 4 had partial response, with an overall response of 17% and 3 had stable disease.