Evidence map›Paper›PMID 35739333›Full record

ArticleNPJ precision oncology2022

Deletions on 9p21 are associated with worse outcomes after anti-PD-1/PD-L1 monotherapy but not chemoimmunotherapy.

Ericka M Ebot, Daniel L Duncan, Khaled Tolba, David Fabrizio, Garrett M Frampton, Leah A Comment, Lee A Albacker

Open access · goldAbstract read
In one paragraph

Article in NPJ precision oncology, 2022. 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
2.2field-weighted citation impact, top 10% of its field
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, 22 citations in OpenAlex.

  1. Innate [European journal of nuclear medicine and molecular imaging · 2025
    Trial
  2. Article
  3. Review
  4. Presenting features and outcomes to standard systemic therapies in patients with MTAP-deleted advanced non-small cell lung cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2026
    Article
  5. Article
  6. Genomics ofJCO precision oncology · 2026
    Article
  7. Article
  8. Review
  9. Review
  10. Interferon Epsilon Loss Is Elusive 9p21 Link to Immune-Cold Tumors, Resistant to Immune Checkpoint Therapy, and Endogenous CXCL9/10 Induction.Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer · 2025
    Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. CDK4/6 Inhibition Sensitizes Intracranial Tumors to PD-1 Blockade in Preclinical Models of Brain Metastasis.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024
    Article
  16. Article
  17. Impact of Aneuploidy and Chromosome 9p Loss on Tumor Immune Microenvironment and Immune Checkpoint Inhibitor Efficacy in NSCLC.Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer · 2023
    Article
  18. Article
  19. Article
  20. Review
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

7 authors at 2 institutions in 1 country.

Ericka M EbotFoundation Medicine, Inc., Cambridge, MA, USA.ORCID http://orcid.org/0000-0001-7144-693X
Daniel L DuncanFoundation Medicine, Inc., Morrisville, NC, USA.
Khaled TolbaFoundation Medicine, Inc., Cambridge, MA, USA.
David FabrizioFoundation Medicine, Inc., Cambridge, MA, USA.
Garrett M FramptonFoundation Medicine, Inc., Cambridge, MA, USA.
Leah A CommentFoundation Medicine, Inc., Cambridge, MA, USA.
Lee A AlbackerFoundation Medicine, Inc., Cambridge, MA, USA. lalbacker@foundationmedicine.com.ORCID http://orcid.org/0000-0002-5070-1783
Foundation Medicine (United States)Tech Foundation · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

NCCN guidelines for first-line treatment of advanced non-squamous non-small-cell lung cancer (NSCLC) patients without targetable driver alterations includes either immunotherapy alone or in combination with chemotherapy. In this study, we investigated genomic predictors of survival after immunotherapy to guide this treatment decision. Cox proportional hazards regression was used to identify genomic correlates of survival in a cohort of EGFR/ALK-, non-squamous NSCLC patients treated with first-line pembrolizumab monotherapy (mono-IO) or pembrolizumab in combination with carboplatin/cisplatin and pemetrexed (chemo-IO) within a real-world clinico-genomic database. The effect of deletions on 9p21 was further evaluated in five additional tumor types. Among mono-IO treated non-squamous NSCLC patients, tumors with 9p21.3 gene deletions (CDKN2A, CDKN2B, MTAP) were associated with worse survival compared to the corresponding deletion-negative tumors (CDKN2A deletion HR = 1.8, P = 0.001). However, this association was not observed among chemo-IO treated patients (CDKN2A deletion HR = 1.1, P = 0.4). This finding remained after adjusting for clinical and genomic features including TMB and PD-L1. Deletions at 9p21.3 were not associated with differences in TMB, PD-L1, or tumor inflammation. Due to the high incidence of 9p21.3 deletions across tumor types, we performed a pan-cancer analysis and found CDKN2A deletion-positive tumors had worse survival following first-line immunotherapy treatment in multiple tumor types (HR = 1.4, P < 0.001). These results indicate deletions at 9p21.3 are a putative negative predictor of clinical benefit from first-line immune checkpoint inhibitors and may have utility in choosing between mono-IO vs chemo-IO regimens in NSCLC.

Identifiers

PMID35739333
PMCPMC9225995
OpenAlexW4283323046

What OpenQuestion holds

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LicenceCC BY
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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.