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Association of programmed death ligand 1 expression with prognosis among patients with ten uncommon advanced cancers

  • Torben Steiniche*
  • , Morten Ladekarl
  • , Jeanette Bæhr Georgsen
  • , Simon Andreasen
  • , Michael Busch-Sørensen
  • , Wei Zhou
  • , Matthew J Marton
  • , Scott K Pruitt
  • , Fan Jin
  • , Kai-Li Liaw
  • *Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Aim: PD-L1 expression and high levels of microsatellite instability (MSI-H) may predict response to checkpoint inhibitors, but their prevalence and prognostic value are unknown in many cancers.

Methods: We retrospectively evaluated PD-L1 combined positive score (CPS) and MSI-H and their association with clinical outcomes among patients with ten advanced uncommon cancers.

Results: 398 of 426 patients (93%) had a valid PD-L1 result; most (242; 61%) had CPS ≥1. Prevalence of MSI-H tumors was 8/360. Median overall survival was shorter among patients with PD-L1 CPS ≥1 tumors after first-line treatment (23.0 vs 39.7 months, p = 0.014).

Conclusion: PD-L1 was commonly expressed in solid tumors, and CPS ≥1 was associated with shorter overall survival. Prevalence of MSI-H was low.

Original languageEnglish
Article numberFSO616
JournalFuture Science OA
Volume6
Issue number8
DOIs
Publication statusPublished - 19 Aug 2020

Keywords

  • anal carcinoma
  • biliary adenocarcinoma
  • cervical carcinoma
  • endometrial carcinoma
  • mesothelioma
  • neuroendocrine tumors
  • salivary gland carcinoma
  • small-cell lung carcinoma
  • thyroid carcinoma
  • vulvar carcinoma

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