A rebrand for proteasome inhibition in solid tumors via continuous hepatic artery infusion

Carolina M Larrain1, Jack H Victory1, Priyanka P Desai1

  • 1Surgical Oncology Program.

JCI Insight
|November 6, 2025
PubMed

Insights

Proteasome inhibitors show promise for solid tumors when delivered via hepatic artery infusion pump. This method aims to maximize carfilzomib dosage directly to the tumor, minimizing liver toxicity for better patient outcomes.

Area of Science:

  • Oncology
  • Pharmacology
  • Drug Delivery Systems

Background:

  • Proteasome inhibitors are effective against multiple myeloma but show limited efficacy in solid tumors.
  • Current treatment strategies for solid tumors using proteasome inhibitors as single agents have not yielded significant clinical responses.

Purpose of the Study:

  • To investigate the potential of hepatic artery infusion pump delivery for carfilzomib in treating solid tumors.
  • To determine if continuous, high-dose delivery of carfilzomib directly to the tumor can improve efficacy while minimizing hepatic toxicity.

Main Methods:

  • Utilized a hepatic artery infusion pump for targeted delivery of carfilzomib.
  • Focused on delivering a high dose of the proteasome inhibitor directly to the tumor site.
  • Assessed for efficacy and hepatic toxicity associated with this delivery method.

Main Results:

  • The study explores a novel drug delivery approach for carfilzomib.
  • This method aims to achieve higher intratumoral drug concentrations.
  • The goal is to reduce systemic exposure and associated side effects, particularly liver toxicity.

Conclusions:

  • Hepatic artery infusion pump delivery represents a potential strategy to overcome the limitations of systemic proteasome inhibitor therapy in solid tumors.
  • This approach may enhance therapeutic efficacy by maximizing drug concentration at the tumor site.
  • Further research is warranted to validate the safety and effectiveness of this targeted delivery method.

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