Clinical effect of bronchial arterial infusion chemotherapy and CalliSpheres drug-eluting beads in patients with stage II-IV lung cancer: A prospective cohort study.

BACKGROUND:CalliSpheres are drug-eluting beads used for tumor artery embolization, with clinical benefits in a number of cancer types. The aim of the study was to examine the clinical benefits and complications of patients with stage II-IV lung cancer treated with CalliSpheres drug-eluting beads for embolization versus conventional vascular interventional treatment. METHODS:This was a prospective cohort study conducted from August 2018 to May 2019. The patients were grouped according to traditional bronchial arterial infusion chemotherapy (infusion group) or bronchial arterial chemoembolization with CalliSpheres drug-eluting beads loaded with adriamycin (CallisSphere group). Short-term effects, serum tumor markers, and adverse reactions during follow-up were compared between the two groups. RESULTS:There were 60 participants enrolled into the study with 30 in each group including 54 men and six women, 42-78 years of age. In the CalliSphere group, compared with the infusion group, the disease control rate was 93.3% versus 73.3% (P = 0.080) and the objective remission rate (ORR) was 86.7% versus 60.0% (P = 0.039); the three- and six-month progression-free survival (PFS) and six-month overall survival (OS) were better in the CalliSphere group (three-month PFS: 96.7% vs. 73.3%, P = 0.026; six-month PFS: 87.5% vs. 57.1%, P = 0.045; six-month OS: 87.5% vs. 52.7%, P = 0.024); after treatment, the tumor markers in the CalliSphere group were lower (CEA: P < 0.001; CYFRA21-1: P = 0.014). There were no differences in adverse reactions between the two groups. CONCLUSIONS:The clinical effect of bronchial arterial chemoembolization with drug-eluting beads on lung cancer is probably significant and could improve the short-term response, PFS, and OS in patients with stage IIIV lung cancer, without increasing severe adverse reactions. KEY POINTS:SIGNIFICANT FINDINGS OF THE STUDY: The clinical effect of bronchial arterial chemoembolization with drug-eluting beads on lung cancer is probably significant and could improve the short-term response, PFS, and OS in patients with stage II-IV lung cancer, without increasing severe adverse reactions. WHAT THIS STUDY ADDS:The ORR, PFS, OS was better in the CalliSphere group than that of infusion group; CEA and CYFRA21-1 were significant lower in CalliSphere group.