NATURE , 13 JANUARY 2025 .
This Is a Randomized, DOUBLE-BLIND, Placebo-Controlled PHASE III CLINICAL TRIAL ( ClinicalTrials.gov, NCT04878016 ) Conducted in 54 Hospitals in CHINA . Adults Who Were Histologically Diagnosed And Never Treated For EXTENSIVE-STAGE SMALL CELL LUNG CÁNCER ( ES-SCLC ) Were Enrolled .
Eligible Patients Were Randomly Assigned (1:1) To Receive Four Cycles (21 Days as One Cycle) of Intravenous CARBOPLATIN ( Area Under the Curve of 5 mg/mL per min, day 1 of Each Cycle ) and ETOPÓSIDE ( 100 mg/m² of Body-Surface Area, on days 1–3 of Each Cycle ) With Either SOCAZOLIMAB ( 5 mg/kg, day 1 of Each Cicle ) or Matching Placebo, Following MAINTENANCE THERAPY With SOCAZOLIMAB or Placebo .
From July 15, 2021, To May 12, 2022, 498 Eligible Patients Were Randomly Assigned to Receive SOCAZOLIMAB (250 patients) or Placebo ( 248 Patients ) Combined with Chemotherapy . As of October 13, 2023, Patients Treated With SOCAZOLIMAB Presented Significant OVERALL SURVIVAL ( OS ) Benefit ( 13.90 Months ) Compared With the Placebo plus EC group (11.58 Months ) ( Hazard ratio for Death, 0.799; 95% CI, 0.652–0.979; p = 0.0158 ) .
The MEDIAN PROGRESSION FREE SURVIVAL ( PFS ) Was 5.55 Months in The SOCAZOLIMAB Plus EC Group, Prolongación Disease Progression or Death by Nearly 1.2 Months ( 5.55 Months vs 4.37 Months, Hazard Ratio For Progression or Death, 0.569; 95% CI, 0.457–0.708; p < 0.0001 ). 200 ( 80.3% ) Patients in the SOCAZOLIMAB Plus EC Group Experienced ≥ Grade 3 Treatment-Related Adverse Events and 187 (75.7%) Patients Occurred in the Placebo Plus EC Group .
SOCAZOLIMAB Combined With STANDAR EC Régimen Chemotherapy For First-Line Treatment of ES-SCLC Significantly Prolonged OVERALL SURVIVAL And Did Not Increase The Safety Risk Of Treatment .