Evidence map›Paper›PMID 39489879›Full record

ArticleBritish journal of cancer2025

Real-world evidence for pembrolizumab in non-small cell lung cancer: a nationwide cohort study.

Helga H Hektoen, Kaitlyn M Tsuruda, Lars Fjellbirkeland, Yngvar Nilssen, Odd Terje Brustugun, Bettina K Andreassen

Abstract read
In one paragraph

Article in British journal of cancer, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Helga H HektoenDepartment of Research, Cancer Registry of Norway, Norwegian Institute of Public Health, Oslo, Norway.
Kaitlyn M TsurudaDepartment of Research, Cancer Registry of Norway, Norwegian Institute of Public Health, Oslo, Norway.ORCID http://orcid.org/0000-0001-8749-6237
Lars FjellbirkelandDepartment of Respiratory Medicine, Oslo University Hospital, Oslo, Norway.
Yngvar NilssenDepartment of Registration, Cancer Registry of Norway, Norwegian Institute of Public Health, Oslo, Norway.
Odd Terje BrustugunInstitute of Clinical Medicine, University of Oslo, Oslo, Norway.
Bettina K AndreassenDepartment of Research, Cancer Registry of Norway, Norwegian Institute of Public Health, Oslo, Norway. b.k.andreassen@kreftregisteret.no.ORCID http://orcid.org/0000-0001-5087-2913

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBased on favourable results from clinical trials, immune checkpoint inhibitors (ICI) have become the standard first line (1 L) systemic anticancer treatment (SACT) for advanced stage non-small cell lung cancer (NSCLC) without targetable mutations. We evaluate whether these results are generalizable to everyday clinical practice and compare overall survival (OS) of patients treated with ICI to a historical cohort of patients treated with chemotherapy and results from clinical trials.

methodsOur study comprised all advanced NSCLC patients initiating SACT in 2012-21 in Norway. Clinical characteristics and treatment information was retrieved from Norwegian Health Registries.

resultsSurvival for all 8416 advanced NSCLC patients treated with SACT increased concurrently with the gradual implementation of ICIs. Median OS of patients treated with 1 L pembrolizumab after 2017 was better (mono-/combination therapy: 13.8/12.8 months) than for patients treated with chemotherapy before 2017 (8.0 months). Although median OS for patients treated with pembrolizumab was lower in clinical practice than clinical trials (Keynote-024/189: 26.3/22.0 months), the survival benefit relative to chemotherapy was similar.

conclusionOur nationwide study demonstrated a survival benefit over conventional chemotherapy of a similar magnitude as observed in clinical trials and confirms the effectiveness of pembrolizumab in routine clinical practice.

Indexed as

Antibodies, Monoclonal, HumanizedCarcinoma, Non-Small-Cell LungImmune Checkpoint InhibitorsLung NeoplasmsAdultAgedAged, 80 and overCohort StudiesFemaleHumansMaleMiddle AgedNorwayRegistriesAntibodies, Monoclonal, HumanizedImmune Checkpoint Inhibitorspembrolizumab

Identifiers

PMID39489879
PMCPMC11724112

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.