Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 406

The DOI matches its Crossref record; 24 of the 24 references it cites were found in a registry or an index.

Five-Year Survival Outcomes With Nivolumab Plus Ipilimumab Versus Chemotherapy as First-Line Treatment for Metastatic Non–Small-Cell Lung Cancer in CheckMate 227

Open access
Brahmer, Julie R., Lee, Jong-Seok, Ciuleanu, Tudor-Eliade, Bernabe Caro, Reyes, Nishio, Makoto, Urban, Laszlo, Audigier-Valette, Clarisse, Lupinacci, Lorena, Sangha, Randeep, Pluzanski, Adam, Burgers, Jacobus, Mahave, Mauricio, Ahmed, Samreen, Schoenfeld, Adam J., Paz-Ares, Luis G., Reck, Martin, Borghaei, Hossein, O'Byrne, Kenneth J., Gupta, Ravi G., Bushong, Judith, Li, Li, Blum, Steven I., Eccles, Laura J., Ramalingam, Suresh S.·2023·Journal of Clinical Oncology

Abstract

PURPOSE: We present 5-year results from CheckMate 227 Part 1, in which nivolumab plus ipilimumab improved overall survival (OS) versus chemotherapy in patients with metastatic non–small-cell lung cancer, regardless of tumor programmed death ligand 1 (PD-L1) status. METHODS: Adults with stage IV/recurrent non–small-cell lung cancer without EGFR mutations or ALK alterations and with tumor PD-L1 ≥ 1% or < 1% (n = 1739) were randomly assigned. Patients with tumor PD-L1 ≥ 1% were randomly assigned to first-line nivolumab plus ipilimumab, nivolumab alone, or chemotherapy. Patients with tumor PD-L1 < 1% were randomly assigned to nivolumab plus ipilimumab, nivolumab plus chemotherapy, or chemotherapy. End points included exploratory 5-year results for efficacy, safety, and quality of life. RESULTS: At a minimum follow-up of 61.3 months, 5-year OS rates were 24% versus 14% for nivolumab plus ipilimumab versus chemotherapy (PD-L1 ≥ 1%) and 19% versus 7% (PD-L1 < 1%). The median duration of response was 24.5 versus 6.7 months (PD-L1 ≥ 1%) and 19.4 versus 4.8 months (PD-L1 < 1%). Among patients surviving 5 years, 66% (PD-L1 ≥ 1%) and 64% (PD-L1 < 1%) were off nivolumab plus ipilimumab without initiating subsequent systemic anticancer treatment by the 5-year time point. Survival benefit continued after nivolumab plus ipilimumab discontinuation because of treatment-related adverse events, with a 5-year OS rate of 39% (combined PD-L1 ≥ 1% and < 1% populations). Quality of life in 5-year survivors treated with nivolumab plus ipilimumab was similar to that in the general US population through the 5-year follow-up. No new safety signals were observed. CONCLUSION: With all patients off immunotherapy treatment for ≥ 3 years, nivolumab plus ipilimumab increased 5-year survivorship versus chemotherapy, including long-term, durable clinical benefit regardless of tumor PD-L1 expression. These data support nivolumab plus ipilimumab as an effective first-line treatment for patients with metastatic non–small-cell lung cancer. [Media: see text]

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1200/jco.22.01503

Cites

24 of 24 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 24 references

Cited by

See all 406

Metadata

Authors
Brahmer, J. R., Lee, J.-S., Ciuleanu, T.-E., Bernabe Caro, R., Nishio, M., Urban, L., Audigier-Valette, C., Lupinacci, L., Sangha, R., Pluzanski, A., Burgers, J., Mahave, M., Ahmed, S., Schoenfeld, A. J., Paz-Ares, L. G., Reck, M., Borghaei, H., O'Byrne, K. J., Gupta, R. G., Bushong, J., Li, L., Blum, S. I., Eccles, L. J., & Ramalingam, S. S.
Venue
Journal of Clinical Oncology
Published
2023-02-20
Volume
41
Issue
6
Pages
1200-1212
ISSN
  • 0732-183X (ISSN-L)
  • 1527-7755
OpenAlex
W4304807333
Cited by
406
References
24
FWCI
29.36
Type
journal article
Language
en
Open access
hybrid

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Five-Year Survival Outcomes With Nivolumab Plus Ipilimumab Versus Chemotherapy as First-Line Treatment for Metastatic Non–Small-Cell Lung Cancer in CheckMate 227. https://app.cochat.ai/papers/10.1200/jco.22.01503
The paper
Brahmer, J. R., Lee, J.-S., Ciuleanu, T.-E., Bernabe Caro, R., Nishio, M., Urban, L., Audigier-Valette, C., Lupinacci, L., Sangha, R., Pluzanski, A., Burgers, J., Mahave, M., Ahmed, S., Schoenfeld, A. J., Paz-Ares, L. G., Reck, M., Borghaei, H., O'Byrne, K. J., Gupta, R. G., . . . Ramalingam, S. S. (2023). Five-Year Survival Outcomes With Nivolumab Plus Ipilimumab Versus Chemotherapy as First-Line Treatment for Metastatic Non–Small-Cell Lung Cancer in CheckMate 227. Journal of Clinical Oncology. https://doi.org/10.1200/jco.22.01503

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.