Cited by 2,527Lung Cancer Treatments and MutationsLung Cancer Research StudiesLung Cancer Diagnosis and Treatment

Alectinib versus Crizotinib in Untreated ALK -Positive Non–Small-Cell Lung Cancer

Open access
Peters, Solange, Camidge, D. Ross, Shaw, Alice T., Gadgeel, Shirish, Ahn, Jin S., Kim, Dong-Wan, Ou, Sai-Hong I., Pérol, Maurice +9 more·2017·New England Journal of Medicine

Abstract

BACKGROUND: Alectinib, a highly selective inhibitor of anaplastic lymphoma kinase (ALK), has shown systemic and central nervous system (CNS) efficacy in the treatment of ALK-positive non-small-cell lung cancer (NSCLC). We investigated alectinib as compared with crizotinib in patients with previously untreated, advanced ALK-positive NSCLC, including those with asymptomatic CNS disease. METHODS: In a randomized, open-label, phase 3 trial, we randomly assigned 303 patients with previously untreated, advanced ALK-positive NSCLC to receive either alectinib (600 mg twice daily) or crizotinib (250 mg twice daily). The primary end point was investigator-assessed progression-free survival. Secondary end points were independent review committee-assessed progression-free survival, time to CNS progression, objective response rate, and overall survival. RESULTS: During a median follow-up of 17.6 months (crizotinib) and 18.6 months (alectinib), an event of disease progression or death occurred in 62 of 152 patients (41%) in the alectinib group and 102 of 151 patients (68%) in the crizotinib group. The rate of investigator-assessed progression-free survival was significantly higher with alectinib than with crizotinib (12-month event-free survival rate, 68.4% [95% confidence interval (CI), 61.0 to 75.9] with alectinib vs. 48.7% [95% CI, 40.4 to 56.9] with crizotinib; hazard ratio for disease progression or death, 0.47 [95% CI, 0.34 to 0.65]; P<0.001); the median progression-free survival with alectinib was not reached. The results for independent review committee-assessed progression-free survival were consistent with those for the primary end point. A total of 18 patients (12%) in the alectinib group had an event of CNS progression, as compared with 68 patients (45%) in the crizotinib group (cause-specific hazard ratio, 0.16; 95% CI, 0.10 to 0.28; P<0.001). A response occurred in 126 patients in the alectinib group (response rate, 82.9%; 95% CI, 76.0 to 88.5) and in 114 patients in the crizotinib group (response rate, 75.5%; 95% CI, 67.8 to 82.1) (P=0.09). Grade 3 to 5 adverse events were less frequent with alectinib (41% vs. 50% with crizotinib). CONCLUSIONS: As compared with crizotinib, alectinib showed superior efficacy and lower toxicity in primary treatment of ALK-positive NSCLC. (Funded by F. Hoffmann-La Roche; ALEX ClinicalTrials.gov number, NCT02075840 .).

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 · 10.1056/nejmoa1704795

Cites

17 of 17 references verified0 citation errors · 0 not checkable

Statistics

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

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Duration of response, progression-free survival, and overall survival are even more variable across these trials.

    “Even more variable are duration of response to targeted therapy, progression-free survival and overall survival16–26, 28–32, 35.”
  • The low frequency of co-drivers plus marked dependence on the ALK fusion protein could account for prolonged PFS seen with second- and third-generation ALK inhibitors.

    “both the rarity of co-drivers and strong addiction to the ALK fusion oncoprotein may account for the long progression-free survival observed in patients with ALK-rearrangements with the potent and selective second and third generation ALK inhibitors alectinib, brigatinib and lorlatinib23, 26, 27.”

Self-check

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

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

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Peters, S., Camidge, D. R., Shaw, A. T., Gadgeel, S., Ahn, J. S., Kim, D.-W., Ou, S.-H. I., Pérol, M., Dziadziuszko, R., Rosell, R., Zeaiter, A., Mitry, E., Golding, S., Balas, B., Noe, J., Morcos, P. N., & Mok, T.
Affiliations
F. Hoffmann-La Roche AG (CH)
Venue
New England Journal of Medicine
Published
2017-08-31
Volume
377
Issue
9
Pages
829-838
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W2624310346
Cited by
2,527
References
14
Citations by year
2026: 173 · 2025: 216 · 2024: 260 · 2023: 270 · 2022: 306 · 2021: 336 · 2020: 327 · 2019: 276 · 2018: 277 · 2017: 82 · 2016: 1
FWCI
218.03
Type
journal article
Language
en
Open access
Locations
  • New England Journal of Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • SERVAL (Université de Lausanne) (publishedVersion, other-oa)
  • Dipòsit Digital de Documents de la UAB (Universitat Autònoma de Barcelona) (submittedVersion, public-domain)
  • IRIS (submittedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, public-domain)
  • Seoul National University Open Repository (Seoul National University) (submittedVersion)
Funders
  • Amgen
  • Bristol-Myers Squibb
  • Eli Lilly and Company
  • Pfizer
  • AstraZeneca
  • Ariad Pharmaceuticals
  • Celgene
  • F. Hoffmann-La Roche
  • Array BioPharma
  • Regeneron Pharmaceuticals
  • Taiho Pharmaceutical
  • Les Laboratories Pierre Fabre
  • Clovis Oncology
  • G1 Therapeutics
  • Eisai
  • Genentech
  • EMD Serono
  • Ignyta
  • Loxo Oncology
  • Foundation Medicine
  • Daiichi Sankyo Europe
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Treatments and Mutations
  • Health Sciences › Medicine › Oncology › Lung Cancer Research Studies
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Diagnosis and Treatment
Keywords
alectinib, crizotinib, anaplastic lymphoma kinase, ALK-positive non-small cell lung cancer, ALK inhibitors, progression-free survival, CNS progression, central nervous system metastasis, objective response rate, overall survival, first-line therapy, targeted therapy, head-to-head comparison
MeSH terms
Crizotinib, Anaplastic Lymphoma Kinase, Adult, Aged, 80 and over, Animals, Antineoplastic Agents, Carbazoles, Carcinoma, Non-Small-Cell Lung, Female, Follow-Up Studies, Humans, Lung Neoplasms, Male, Middle Aged, Piperidines, Pyrazoles, Pyridines, Central Nervous System Neoplasms, Disease-Free Survival, Receptor Protein-Tyrosine Kinases, Protein Kinase Inhibitors, Kaplan-Meier Estimate, Young Adult, Intention to Treat Analysis

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