Evidence map›Paper›PMID 31179082›Full record

ArticleJournal of thoracic disease2019

Anaplastic lymphoma kinase inhibitors in non-small cell lung cancer patients with brain metastases: a meta-analysis.

Zhiguo Zhang, Hongwei Guo, Yuanli Lu, Wei Hao, Lei Han

Open access · diamondAbstract read
In one paragraph

Article in Journal of thoracic disease, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.7field-weighted citation impact, top 6% 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

19 citing papers in PubMed, 31 citations in OpenAlex.

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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

5 authors at 1 institution in 1 country.

Zhiguo ZhangDepartment of Oncology, Beijing Daxing District People's Hospital, Capital Medical University, Beijing 102600, China.
Hongwei GuoDepartment of Oncology, Beijing Daxing District People's Hospital, Capital Medical University, Beijing 102600, China.
Yuanli LuDepartment of Oncology, Beijing Daxing District People's Hospital, Capital Medical University, Beijing 102600, China.
Wei HaoDepartment of Oncology, Beijing Daxing District People's Hospital, Capital Medical University, Beijing 102600, China.
Lei HanDepartment of Oncology, Beijing Daxing District People's Hospital, Capital Medical University, Beijing 102600, China.
Capital Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatients with anaplastic lymphoma kinase (ALK) rearrangements are particularly prone to development of brain metastases (BMs). Newer anti-ALK treatments have demonstrated far greater intracranial efficacy. Here we performed a meta-analysis with the aim of assessing the efficacy of ALK inhibitors on BMs.

methodsA search of published trials was conducted in PubMed, The Cochrane Library, Web of Science, and Embase. Data were pooled using the number of events/number of evaluable patients (non-small cell lung cancer patients with BMs) according to fixed or random effect models. Intracranial efficacy was assessed through overall response rate (ORR), disease control rate (DCR), and median progression-free survival (PFS). Subgroup analyses for baseline BMs, previous treatment with ALK inhibitor, study type, and current ALK inhibitor were made.

resultsTwenty studies accounting for 2,715 patients were included. The pooled iORR was 48% (95% CI: 32-63%) in fifteen single-arm studies. The overall DCR was 65% (95% CI: 60-69%) from three studies include available data. The iORR was 79% (95% CI: 64-91%), 45% (24-67%), 48% (34-63%), 18% (13-24%) in patients receiving alectinib, ceritinib, brigatinib, and crizotinib, respectively. Five randomized studies assessed the intracranial efficacy of anti-ALK agents versus chemotherapy, the pooled RR for iORR was 3.54 (95% CI: 2.38-5.26), and the pooled HR for iPFS was 0.52 (95% CI: 0.36-0.75; P=0.71) estimated in 2 studies.

conclusionsDespite the limitation from lack of published clinical data, our results showed that ALK inhibitors are effective at the brain site regardless of previous anti-ALK treatments, systemic therapy with ALK inhibitors should be considered as a preferred approach over for controlling BMs from ALK-positive NSCLC.

Indexed as

Anaplastic lymphoma kinase inhibitors (ALK inhibitors)brain metastases (BMs)non-small cell lung cancer (NSCLC)

Identifiers

PMID31179082
PMCPMC6531761
OpenAlexW2943541518

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

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.