Therapeutic Actionability of Circulating Cell-Free DNA Alterations in Carcinoma of Unknown Primary
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ABSTRACT: METHODS
We evaluated 1,931 patients with CUP with a cfDNA next-generation sequencing panel (73-74 genes). RESULTS
Overall, 1,739 patients (90%) had ≥ 1 cfDNA alteration. We then explored alteration actionability (per the levels of evidence from the OncoKB database); 825 patients (47.4% of 1,739) had level 1, level 2, or resistance/R1 alterations. Among 40 clinically annotated patients with CUP who had cfDNA evaluated, higher degrees of matching treatment to alterations (Matching Score > 50% v ≤ 50%) was the only variable predicting improved outcome: longer median progression-free survival (10.4 v 2.5 months; P = .002), overall survival (13.4 v 5.7 months; P = .07, trend), and higher clinical benefit rate (stable disease ≥ 6 months/partial response/complete response; 83% v 25%; P = .003). CONCLUSION
In summary, cfDNA frequently reveals strong level-of-evidence actionable alterations in CUP, and high degrees of matching to therapy correlates with better outcomes.
SUBMITTER: Kato S
PROVIDER: S-EPMC8585281 | biostudies-literature |
REPOSITORIES: biostudies-literature
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