Pulse Brain · Growing Health Evidence Index
Tier 4 — Narrative / commentaryPeer-reviewed

PD-L1 as a biomarker of response to immune-checkpoint inhibitors

Deborah B. Doroshow, Sheena Bhalla, Mary Beth Beasley, Lynette M. Sholl, Keith M. Kerr, Sacha Gnjatic, Ignacio I. Wistuba, David L. Rimm, Ming‐Sound Tsao, Fred R. Hirsch

Nature Reviews Clinical Oncology · 2021

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Summary

This review, published in Nature Reviews Clinical Oncology, examines programmed death-ligand 1 (PD-L1) as a biomarker of response to immune-checkpoint inhibitors in cancer patients. The authors, a multi-institutional consortium, appear to consolidate evidence on PD-L1's utility in predicting ICI efficacy, discussing its role as a companion diagnostic across solid tumour types. The review likely addresses methodological considerations, clinical evidence, and limitations of PD-L1 as a single-agent predictor of immunotherapy response.

UK applicability

This oncology biomarker review is directly applicable to UK clinical practice, as PD-L1 testing informs treatment decisions within the NHS for eligible cancer patients. The findings would support evidence-based stratification of immunotherapy access and tumour board decision-making in UK cancer centres.

Key measures

PD-L1 expression levels (percentage and intensity of staining), response rates to ICIs, progression-free survival, overall survival, biomarker performance across cancer histologies

Outcomes reported

The study examined PD-L1 expression as a biomarker to predict patient response to immune-checkpoint inhibitor (ICI) therapies across multiple cancer types. The work appears to synthesise evidence on PD-L1's prognostic and predictive value in clinical oncology practice.

Theme
Nutrition & health
Subject
Other / interdisciplinary
Study type
Narrative Review
Study design
Narrative review
Source type
Peer-reviewed study
Status
Published
Geography
United States
System type
Human clinical
DOI
10.1038/s41571-021-00473-5
Catalogue ID
SNmoh0dwem-dyourn

Topic tags

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