Abstract
BACKGROUND/OBJECTIVES: Locoregional therapies (LRTs), including transarterial embolization (TAE), transarterial chemoembolization (TACE), and transarterial radioembolization (TARE), have become integral in the management of hepatocellular carcinoma (HCC) in recent decades and continue to shape evolving treatment strategies. While their role in liver tumor management is well established, their potential for treating extrahepatic malignancies is gaining increasing attention. Notably, growing research has highlighted the promising applications of TAE, TACE, and TARE in extrahepatic cancers such as glioblastoma (GBM), soft tissue sarcomas (STSs), prostate cancer (PCa), pancreatic cancer, and renal cell carcinoma (RCC). This review aims to explore these novel applications, providing a comprehensive summary of the current literature, examining clinical outcomes, and discussing future directions for integrating these techniques into broader oncologic treatment strategies. METHODS: A systematic literature review was conducted focusing on LRTs such as TAE, TACE, and TARE in extrahepatic malignancies. Studies published between May 1998 and December 2024 were included, emphasizing outcomes in GBM, STS, PCa, pancreatic cancer, and RCC. Data extraction prioritized clinical outcomes, safety profiles, and procedural efficacy. RESULTS: LRTs demonstrated significant potential in managing extrahepatic malignancies, with TAE, TACE, and TARE showing promising results in palliative management and tumor control. Across studies, these therapies exhibited varying degrees of success in improving progression-free survival and overall survival, with minimal systemic toxicity. CONCLUSIONS: The expanding application of LRTs in extrahepatic malignancies highlights their transformative potential in interventional oncology. By offering targeted, minimally invasive treatment options, these modalities bridge critical gaps in managing tumors refractory to conventional therapies. Future research should focus on standardizing protocols, optimizing patient selection, and exploring combination therapies to maximize their clinical efficacy.