Evidence map›Paper›PMID 26722766›Full record

SynthesisEuropean journal of cancer (Oxford, England : 1990)2016

Effects of neoadjuvant chemotherapy with or without zoledronic acid on pathological response: A meta-analysis of randomised trials.

J R Kroep, A Charehbili, R E Coleman, R L Aft, Y Hasegawa, M C Winter, K Weilbaecher, K Akazawa, S Hinsley, H Putter and 3 more

Open access · hybridAbstract readMeta-Analysis
In one paragraph

Synthesis in European journal of cancer (Oxford, England : 1990), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 15% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 6 institutions in 4 countries.

J R Kroep *Leiden University Medical Center, Leiden, The Netherlands.
A Charehbili *Leiden University Medical Center, Leiden, The Netherlands.
R E ColemanSheffield Cancer Research Centre, Weston Park Hospital, Sheffield, United Kingdom.
R L AftWashington University School of Medicine, St. Louis, USA.
Y HasegawaHirosaki Municipal Hospital, Aomori, Japan.
M C WinterSheffield Cancer Research Centre, Weston Park Hospital, Sheffield, United Kingdom.
K WeilbaecherWashington University School of Medicine, St. Louis, USA.
K AkazawaNiigata University, Niigata, Japan.
S HinsleyClinical Trials Research Unit, Leeds, United Kingdom.
H PutterLeiden University Medical Center, Leiden, The Netherlands.
G J LiefersLeiden University Medical Center, Leiden, The Netherlands.
J W R NortierLeiden University Medical Center, Leiden, The Netherlands.
N KohnoKobe Kaisei Hospital, Kobe, Japan.
Leiden University Medical Center · NLWashington University in St. Louis · USWeston Park Cancer Centre · GBKobe Kaisei Hospital · JPNiigata University · JPOgaki Municipal Hospital · JP

Funding

Role of Inflammation in Tax-mediated TumorigenesisP01CA100730 · NCI · WASHINGTON UNIVERSITY · PI Malachi Griffith · 2003 to 2026
$44.8M
NCI NIH HHS P01 CA100730
6 · The paper itself

Abstract

purposeThe addition of bisphosphonates to adjuvant therapy improves survival in postmenopausal breast cancer (BC) patients. We report a meta-analysis of four randomised trials of neoadjuvant chemotherapy (CT) +/- zoledronic acid (ZA) in stage II/III BC to investigate the potential for enhancing the pathological response.

methodsIndividual patient data from four prospective randomised clinical trials reporting the effect of the addition of ZA on the pathological response after neoadjuvant CT were pooled. Primary outcomes were pathological complete response in the breast (pCRb) and in the breast and lymph nodes (pCR). Trial-level and individual patient data meta-analyses were done. Predefined subgroup-analyses were performed for postmenopausal women and patients with triple-negative BC.

resultspCRb and pCR data were available in 735 and 552 patients respectively. In the total study population ZA addition to neoadjuvant CT did not increase pCRb or pCR rates. However, in postmenopausal patients, the addition of ZA resulted in a significant, near doubling of the pCRb rate (10.8% for CT only versus 17.7% with CT+ZA; odds ratio [OR] 2.14, 95% confidence interval [CI] 1.01-4.55) and a non-significant benefit of the pCR rate (7.8% for CT only versus 14.6% with CT+ZA; OR 2.62, 95% CI 0.90-7.62). In patients with triple-negative BC a trend was observed favouring CT+ZA.

conclusionThis meta-analysis shows no impact from the addition of ZA to neoadjuvant CT on pCR. However, as has been seen in the adjuvant setting, the addition of ZA to neoadjuvant CT may augment the effects of CT in postmenopausal patients with BC.

Indexed as

Bone Density Conservation AgentsBreast NeoplasmsChemotherapy, AdjuvantDiphosphonatesFemaleHumansImidazolesLymphatic MetastasisNeoadjuvant TherapyNeoplasm StagingPostmenopauseRandomized Controlled Trials as TopicRisk FactorsSurvival AnalysisTime FactorsTreatment OutcomeBone Density Conservation AgentsDiphosphonatesImidazolesZoledronic AcidBisphosphonatesBreast cancerChemotherapyNeoadjuvantPathological complete responseZoledronic acid

Identifiers

PMID26722766
PMCPMC4928630
OpenAlexW2198494082

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

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.