Journal of cancer research and clinical oncology
Molecular tumor board in advanced sarcoma: treatment implementation and clinical outcomes in a real-world cohort
By Weinfurtner C, Kaupp-Merkle M, Marienfeld R and 20 others.
Abstract
Purpose
Advanced sarcomas remain therapeutically challenging. We evaluated treatment implementation and clinical outcomes after molecular tumor board recommendations.
Methods
We retrospectively analyzed 125 sarcoma patients discussed in our multidisciplinary Molecular and Familial Tumor Board between 2017 and 2023. Clinical benefit was assessed by treatment implementation and by the ratio of progression-free survival on molecularly guided therapy versus the preceding treatment line (PFS2/PFS1). Overall survival (OS) was measured from first board discussion.
Results
A total of 252 pathogenic or likely pathogenic variant records across 133 genes were identified. Molecular profiling enabled therapy recommendations in 71 of 125 patients (56.8%), with treatment implementation in 41 (32.8%). PFS2/PFS1 evaluation was feasible in 29 patients, and nine (31.0%) had a documented ratio > 1.3. Median PFS2 was 102 days (95% CI 63-233). Two of seven patients (28.6%) receiving poly(ADP-ribose) polymerase (PARP) inhibitor-containing regimens had ratios > 1.3. Median OS in 124 patients was 14.6 months (95% CI 11.7-18.5; global log-rank p = 0.220).