Evidence map›Paper›PMID 31852082›Full record

SynthesisMedicine2019

Efficacy and safety of bevacizumab-based maintenance therapy in metastatic colorectal cancer: A meta-analysis.

Hongbo Ma, Xiaoli Wu, Miaomiao Tao, Nan Tang, Yanyan Li, Xianquan Zhang, Qi Zhou

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.4field-weighted citation impact, top 16% 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

11 citing papers in PubMed, 21 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

7 authors at 2 institutions in 1 country.

Hongbo MaThe Fuling Center Hospital of Chongqing City.
Xiaoli WuThe Fuling Center Hospital of Chongqing City.
Miaomiao TaoThe Fuling Center Hospital of Chongqing City.
Nan TangThe Fuling Center Hospital of Chongqing City.
Yanyan LiThe Fuling Center Hospital of Chongqing City.
Xianquan ZhangThe Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Qi ZhouThe Fuling Center Hospital of Chongqing City.
Fuling Center Hospital of Chongqing · CNSecond Affiliated Hospital of Chongqing Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo identify the optimal treatment strategy after first-line induction chemotherapy for metastatic colorectal cancer (mCRC).

methodsWe conducted a meta-analysis of randomized controlled trials comparing bevacizumab-based maintenance therapy, observation, and continuous chemotherapy.We searched the PubMed, Embase, and Cochrane databases for relevant articles published through March 2018. All randomized phase-III trials evaluating bevacizumab-based maintenance treatment after bevacizumab-based induction treatment were eligible for inclusion. The primary and secondary endpoints were progression-free survival (PFS) and overall survival (OS), respectively. Hazard ratios (HRs) with 95% confidence intervals (CIs) or data for calculating HRs with 95% CIs were extracted. The RevMan v5.3 (Copenhagen, Denmark) software was used for data analysis.

resultsNine trials (3121 patients) were included in this meta-analysis. Compared with observation alone, bevacizumab-based maintenance therapy significantly improved PFS (HR: 0.62, 95% CI: 0.47-0.82) and showed a trend toward prolonged OS (HR: 0.93, 95% CI: 0.83-1.05). The incidence of grade 3/4 toxicity, including hypertension and fatigue, was higher after maintenance therapy than after observation alone. PFS (HR: 0.91, 95% CI: 0.70-1.18) and OS (HR: 0.88, 95% CI: 0.74-1.04) did not differ between the maintenance treatment and continuous chemotherapy groups. Grade 3/4 toxicity, including diarrhea and sensory neuropathy, was less common after maintenance therapy than after continuous chemotherapy.

conclusionBevacizumab-based maintenance therapy significantly improved PFS, showed a trend toward prolonged OS, and reduced cumulative grade 3/4 toxicity relative to continuous chemotherapy with comparable efficacy. Although maintenance therapy was beneficial, the optimal strategy should be individualized.

Indexed as

Antineoplastic Agents, ImmunologicalBevacizumabColorectal NeoplasmsHumansMaintenance ChemotherapyNeoplasm MetastasisTreatment OutcomeAntineoplastic Agents, ImmunologicalBevacizumab

Identifiers

PMID31852082
PMCPMC6922481
OpenAlexW2996637695

What OpenQuestion holds

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LicenceCC BY
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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.