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Background <p>Adrenocortical carcinoma (ACC) is a rare, aggressive malignancy often detected at an advanced stage with limited effective treatment options beyond first-line chemotherapy. The liver is a common site of metastasis, and patients frequently present with substantial hepatic disease burden that precludes complete resection. Locoregional therapies, including hepatic artery infusion pump (HAIP) delivery of floxuridine, have not been thoroughly evaluated for treatment of ACC liver metastasis, likely due to its rare incidence and highly aggressive nature. PDS01ADC (previously referred to as NHS-IL12) is a novel antibody-drug conjugate designed to deliver the immunomodulatory cytokine interleukin-12 to areas of tumor necrosis and modulate the tumor microenvironment to support immune surveillance and cytotoxic tumor responses. Combination of PDS01ADC with HAIP therapy (HAIP-delivered floxuridine plus systemic chemotherapy) was recently found to be feasible for clinical evaluation by an interim analysis in patients with colorectal liver metastases. Patients who received PDS01ADC with HAIP therapy had extended overall survival compared to patients who received HAIP therapy alone in a nonrandomized prior sequential study. We discuss herein the rationale and initiation of a new clinical trial arm to evaluate HAIP therapy with PDS01ADC for patients with ACC liver metastasis who have failed standard of care therapy.</p> Methods <p>Patients with unresectable ACC liver metastasis and either resectable or no progressive extrahepatic disease will receive combination therapy including HAIP floxuridine and subcutaneous injection of PDS01ADC administered concurrently with systemic gemcitabine and oxaliplatin in 28-day cycles. The primary outcome measured is overall response rate as measured by Response Evaluation Criteria in Solid Tumors (RECIST v1.1) criteria. Secondary outcomes measured in this study include intrahepatic and extrahepatic progression-free survival, overall survival, and safety of PDS01ADC combination therapy with HAIP-delivered floxuridine.</p> Discussion <p>For select patients with ACC liver metastasis, HAIP therapy with PDS01ADC may improve disease control and thereby prolong survival.</p> Trial registration <p>Study ID NCT05286814 version 2026-05-04; <a href="https://clinicaltrials.gov/study/NCT05286814">https://clinicaltrials.gov/study/NCT05286814</a>.</p>

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Study protocol: targeted delivery of interleukin-12 in combination with hepatic artery infusion pump therapy for patients with adrenocortical carcinoma liver metastases

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月27日

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  • Lindsay R. Friedman,
  • Emily C. Smith,
  • A. Leila Sarvestani,
  • Alyssa V. Eade,
  • Jason Ho,
  • Tracey Pu,
  • Carolina Larrain,
  • Cathleen E. Hannah,
  • Tamika Magee,
  • Kathleen M. Smith,
  • Audra A. Satterwhite,
  • Sophia Xiao,
  • Justine F. Burke,
  • Surajit Sinha,
  • Priyanka P. Desai,
  • Kirsten Remmert,
  • Michael J. Cavnar,
  • James L. Gulley,
  • Jeffrey Schlom,
  • Jaydira del Rivero,
  • Jonathan M. Hernandez

摘要

Background

Adrenocortical carcinoma (ACC) is a rare, aggressive malignancy often detected at an advanced stage with limited effective treatment options beyond first-line chemotherapy. The liver is a common site of metastasis, and patients frequently present with substantial hepatic disease burden that precludes complete resection. Locoregional therapies, including hepatic artery infusion pump (HAIP) delivery of floxuridine, have not been thoroughly evaluated for treatment of ACC liver metastasis, likely due to its rare incidence and highly aggressive nature. PDS01ADC (previously referred to as NHS-IL12) is a novel antibody-drug conjugate designed to deliver the immunomodulatory cytokine interleukin-12 to areas of tumor necrosis and modulate the tumor microenvironment to support immune surveillance and cytotoxic tumor responses. Combination of PDS01ADC with HAIP therapy (HAIP-delivered floxuridine plus systemic chemotherapy) was recently found to be feasible for clinical evaluation by an interim analysis in patients with colorectal liver metastases. Patients who received PDS01ADC with HAIP therapy had extended overall survival compared to patients who received HAIP therapy alone in a nonrandomized prior sequential study. We discuss herein the rationale and initiation of a new clinical trial arm to evaluate HAIP therapy with PDS01ADC for patients with ACC liver metastasis who have failed standard of care therapy.

Methods

Patients with unresectable ACC liver metastasis and either resectable or no progressive extrahepatic disease will receive combination therapy including HAIP floxuridine and subcutaneous injection of PDS01ADC administered concurrently with systemic gemcitabine and oxaliplatin in 28-day cycles. The primary outcome measured is overall response rate as measured by Response Evaluation Criteria in Solid Tumors (RECIST v1.1) criteria. Secondary outcomes measured in this study include intrahepatic and extrahepatic progression-free survival, overall survival, and safety of PDS01ADC combination therapy with HAIP-delivered floxuridine.

Discussion

For select patients with ACC liver metastasis, HAIP therapy with PDS01ADC may improve disease control and thereby prolong survival.

Trial registration

Study ID NCT05286814 version 2026-05-04; https://clinicaltrials.gov/study/NCT05286814.