Isolated Hepatic Perfusion With Melphalan for Patients With Isolated Uveal Melanoma Liver Metastases: A Multicenter, Randomized, Open-Label, Phase III Trial (the SCANDIUM Trial).

Abstract

PURPOSE:

About half of patients with metastatic uveal melanoma present with isolated liver metastasis, in whom the median survival is 6-12 months. The few systemic treatment options available only moderately prolong survival. Isolated hepatic perfusion (IHP) with melphalan is a regional treatment option, but prospective efficacy and safety data are lacking.

METHODS:

In this multicenter, randomized, open-label, phase III trial, patients with previously untreated isolated liver metastases from uveal melanoma were randomly assigned to receive a one-time treatment with IHP with melphalan or best alternative care (control group). The primary end point was overall survival at 24 months. Here, we report the secondary outcomes of response according to RECIST 1.1 criteria, progression-free survival (PFS), hepatic PFS (hPFS), and safety.

RESULTS:

Ninety-three patients were randomly assigned, and 87 patients were assigned to either IHP (n = 43) or a control group receiving the investigator's choice of treatment (n = 44). In the control group, 49% received chemotherapy, 39% immune checkpoint inhibitors, and 9% locoregional treatment other than IHP. In an intention-to-treat analysis, the overall response rates (ORRs) were 40% versus 4.5% in the IHP and control groups, respectively (P < .0001). The median PFS was 7.4 months versus 3.3 months (P < .0001), with a hazard ratio of 0.21 (95% CI, 0.12 to 0.36), and the median hPFS was 9.1 months versus 3.3 months (P < .0001), both favoring the IHP arm. There were 11 treatment-related serious adverse events in the IHP group compared with seven in the control group. There was one treatment-related death in the IHP group.

CONCLUSION:

IHP treatment resulted in superior ORR, hPFS, and PFS compared with best alternative care in previously untreated patients with isolated liver metastases from primary uveal melanoma.

• Authors: Roger Olofsson Bagge, Axel Nelson, Amir Shafazand, Charlotta All-Eriksson, Christian Cahlin, Nils Elander, Hildur Helgadottir, Jens Folke Kiilgaard, Sara Kinhult, Ingrid Ljuslinder, Jan Mattsson, Magnus Rizell, Malin Sternby Eilard, Gustav J Ullenhag, Jonas A Nilsson, Lars Ny, Per Lindnér
• Journal: Journal of clinical oncology : official journal of the American Society of Clinical Oncology (J Clin Oncol) Vol. 41 Issue 16 Pg. 3042-3050 (06 01 2023) ISSN: 1527-7755 [Electronic] United States
• PMID: 36940407 (Publication Type: Randomized Controlled Trial, Multicenter Study, Clinical Trial, Phase III, Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Melphalan
• Scandium

Topics

• Humans
• Melphalan
• Scandium (therapeutic use)
• Prospective Studies
• Chemotherapy, Cancer, Regional Perfusion (adverse effects, methods)
• Liver Neoplasms (therapy)
• Perfusion