Published online Apr 15, 2025. doi: 10.4251/wjgo.v17.i4.103776
Revised: January 12, 2025
Accepted: February 7, 2025
Published online: April 15, 2025
Processing time: 116 Days and 2.1 Hours
Intrahepatic cholangiocarcinoma (iCCA) is the second most common liver malignancy with poor prognosis and limited treatment options.
To identify the most effective drug for transarterial chemoembolization (TACE) in cholangiocarcinoma and evaluate the efficacy and safety of combining it with gemcitabine and cisplatin (GemCis) for unresectable iCCA.
Cholangiocarcinoma cell lines (RBE, HuCC-T1) were treated with 10 chemotherapeutic drugs, and cytotoxicity was assessed by cell counting kit-8 assays. Tumor-bearing nude mice were treated with idarubicin or GemCis, and tumor growth was monitored. Clinical data from 85 iCCA patients were analyzed to evaluate the efficacy and safety of idarubicin-TACE combined with GemCis.
Idarubicin demonstrated the highest cytotoxicity, significantly outperforming GemCis, the standard first-line therapies. In tumor-bearing mouse models, idarubicin and GemCis treatments significantly slowed tumor growth, with idarubicin showing particularly pronounced effects on days 12 and 15 (P < 0.05). In retrospective analysis, the median overall survival (OS) and progression-free survival (PFS) in the combination therapy group were significantly longer than those in the GemCis alone group (median OS, 16.23 months vs 10.07 months, P = 0.042; median PFS, 7.73 months vs 6.30 months, P = 0.023). Additionally, major grade 3/4 adverse events (AEs) in the combination therapy group were abdominal pain (26.3% vs 6.5%, P = 0.049) and elevated transaminases (42.1% vs 12.9%, P = 0.038). Most AEs were mild to moderate and manageable.
Idarubicin demonstrated higher cytotoxicity than GemCis, significantly inhibiting tumor growth in tumor-bearing mouse models. Preliminary clinical results suggest that local idarubicin-TACE combined with GemCis may offer improved survival outcomes for iCCA patients with a manageable safety profile.
Core Tip: Intrahepatic cholangiocarcinoma (iCCA) is a liver cancer with poor survival rates and limited treatments, prompting the need for novel therapeutic strategies. This study reveals that idarubicin demonstrates superior cytotoxicity compared to standard treatments and shows improved survival outcomes when combined with gemcitabine and cisplatin in both preclinical and clinical settings. The findings highlight the potential of idarubicin-transarterial chemoembolization as a promising therapeutic agent for unresectable iCCA, offering hope for better management of this challenging disease with a manageable safety profile.