Evidence map›Paper›PMID 33579962›Full record

ArticleNPJ breast cancer2021

Meta-analyses of visceral versus non-visceral metastatic hormone receptor-positive breast cancer treated by endocrine monotherapies.

John F R Robertson, Angelo Di Leo, Stephen Johnston, Stephen Chia, Judith M Bliss, Robert J Paridaens, Jasmine Lichfield, Ian Bradbury, Christine Campbell

Open access · goldAbstract read
In one paragraph

Article in NPJ breast cancer, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
4.1field-weighted citation impact, top 5% 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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 32 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

9 authors at 8 institutions in 4 countries.

John F R RobertsonGraduate Entry Medicine, University of Nottingham, School of Medicine, Nottingham, UK. John.Robertson@nottingham.ac.uk.ORCID http://orcid.org/0000-0001-6212-3979
Angelo Di LeoSandro Pitigliani Medical Oncology Unit, Department of Oncology, Hospital of Prato, Instituto Toscano Tumori, Prato, Italy.
Stephen JohnstonRoyal Marsden NHS Foundation Trust, London, UK.
Stephen ChiaDepartment of Medical Oncology, British Columbia Cancer Agency, Vancouver, BC, Canada.
Judith M BlissInstitute of Cancer Research, London, UK.
Robert J ParidaensDepartment of Oncology, Universitair Ziekenhuis Gasthuisberg, Leuven, Belgium.
Jasmine LichfieldGlobal Medicines Development, AstraZeneca, Cambridge, UK.
Ian BradburyBiostatistics, Frontier Science, Kincraig, Scotland, UK.
Christine CampbellBiostatistics, Frontier Science, Kincraig, Scotland, UK.
Frontier Agriculture (United Kingdom) · GBAstraZeneca (United Kingdom) · GBBC Cancer Agency · CAHospital of Prato · ITInstitute of Cancer Research · GBRoyal Marsden NHS Foundation Trust · GBUniversitair Ziekenhuis Leuven · BEUniversity of Nottingham · GB

Funding

Cancer Research UK 25351
6 · The paper itself

Abstract

Endocrine therapy (ET) is recommended as first-line therapy for the majority of patients with hormone receptor-positive (HR+), human epidermal growth factor 2-negative advanced breast cancer (ABC); however, the efficacy of ET in patients with visceral metastases (VM) versus patients whose disease is limited to non-visceral metastases (non-VM) is debated. Meta-analyses including available data from randomised controlled trials of first- and second-line endocrine monotherapies for patients with HR+ ABC were performed to address this question. In one and two-stage meta-analyses, progression-free survival (PFS), overall survival (OS), clinical benefit rate (CBR) and duration of clinical benefit (DoCB) outcomes were analysed. In the first-line meta-analysis (seven trials; n = 1988) tamoxifen and fulvestrant significantly improved PFS, OS and CBR for patients with non-VM versus those whose disease included VM. The most substantial hazard ratios were observed for fulvestrant 500 mg; 0.56 (95% confidence interval [CI] 0.45-0.70) and 0.55 (95% CI 0.42-0.72) for PFS and OS, respectively. In the second-line meta-analysis (seven trials; n = 2324), all ET combined was more effective (in terms of PFS, OS and DoCB) for non-VM versus VM. In both meta-analyses, patients with non-liver VM had better clinical outcomes than patients with liver VM for all types of ET. Patients whose disease included non-VM sites had better clinical outcomes with endocrine monotherapy compared with patients whose disease included VM. These findings may facilitate better informed treatment decision-making.

Identifiers

PMID33579962
PMCPMC7881093
OpenAlexW3128758614

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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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.