Serplulimab for Locally Advanced Cervical Cancer

intravenous infusion of 300 mg, administered every 3 weeks as one cycle, on the first day of each cycle, with a maximum treatment duration of 2 years (up to 35 treatment cycles)

Pelvic external beam radiotherapy was delivered with a prescribed dose of 45.0-50.4 Gy in 25-28 fractions to the PTV, administered once daily, five days per week; the PGTVnd received a simultaneous integrated boost to 53.50-59.92 Gy in 25-28 fractions. During radiotherapy, concurrent chemotherapy with weekly cisplatin was administered. Brachytherapy was delivered with 28 Gy in 4 fractions, prescribed to the 100% isodose line covering the CTV.

Two cycles of induction chemotherapy were administered prior to concurrent chemoradiotherapy, consisting of cisplatin 60-75 mg/m² on days 1 and 2 of each cycle, once every 3 weeks (21 days), and nab-paclitaxel 135-175 mg/m² by intravenous infusion on day 1 of each cycle, once every 3 weeks (21 days). After completion of concurrent chemoradiotherapy, patients received four cycles of consolidation chemotherapy using the same cisplatin and nab-paclitaxel regimen as above.