Evidence map›Paper›PMID 31515666›Full record

SynthesisInternational urology and nephrology2019

Efficacy and safety of leflunomide in IgA nephropathy: a systematic review and meta-analysis.

Jianwei Yi, Zhihong He, Shizhang Xu, Si Feng

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in International urology and nephrology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 pooled it
3.0field-weighted citation impact, top 9% 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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 27 citations in OpenAlex.

  1. Immunosuppressive therapy for IgA nephropathy in children.The Cochrane database of systematic reviews · 2024
    Pooled it
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  7. Contemporary review of IgA nephropathy.Frontiers in immunology · 2024
    Review
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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

4 authors at 1 institution in 1 country.

Jianwei YiDepartment of Nephrology, The People's Hospital of Yichun City, 88 Zhongsha West Road, Yuanzhou District, Yichun, Jiangxi Province, China. yiwenhua195725@163.com.
Zhihong HeDepartment of Nephrology, The People's Hospital of Yichun City, 88 Zhongsha West Road, Yuanzhou District, Yichun, Jiangxi Province, China.
Shizhang XuDepartment of Nephrology, The People's Hospital of Yichun City, 88 Zhongsha West Road, Yuanzhou District, Yichun, Jiangxi Province, China.
Si FengDepartment of Nephrology, The People's Hospital of Yichun City, 88 Zhongsha West Road, Yuanzhou District, Yichun, Jiangxi Province, China.
Yichun University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe optimal therapy for immunoglobulin A nephropathy (IgAN) remains uncertain. Leflunomide (LEF) is an immunosuppressive drug which may reduce deposition of glomerular autoantibodies and immune complexes. Several clinical trials were designed to evaluate the efficacy of LEF, but their results were controversial.

methodsOvid Medline, Embase, the Cochrane Library, PubMed, and CNKI were systematically searched. Search terms included ("glomerulonephritis" OR "nephritis") AND ("immunoglobulin A" OR "IgA") AND "leflunomide". Studies in which patients were diagnosed with IgAN based on renal biopsy were included. Studies needed to report clinical outcomes via either short- or long-term clinical examination, remission rate, or complication rate.

resultsForty-four studies encompassing 1802 patients were included, of which 35 were randomized controlled trials. Results of 24 h post-treatment urine protein tests and serum creatinine tests were significantly lower in patients treat with LEF and corticosteroids (CS) or valsartan (ACEI) (CS + LEF or CS + ACEI) compared with patients treated with CS or ACEI alone (P < 0.05). More patients treated with CS + LEF (31.2%) achieved complete remission (CR) than patients treated with CS alone (22.2%) (RR = 0.71, 95% CI 0.59-0.85, P < 0.05). Although there was no significant difference in CR between patients treated with cyclophosphamide and CS (CS + CTX) and those treated with CS + LEF, the complication rate in the former group was higher (28.4%) than in the latter one (11.4%) (RR = 2.46, 95% CI 1.47-4.13, P < 0.005).

conclusionLEF appears to improve renal function while decreasing loss of urine protein. Combination regimens including LEF were better and safer compared with CS or ACEI alone or combinations including CTX.

Indexed as

Glomerulonephritis, IGAHumansImmunosuppressive AgentsLeflunomideTreatment OutcomeImmunosuppressive AgentsLeflunomideIgA nephropathyImmunosuppressive agentsLeflunomideTreatment

Identifiers

PMID31515666
OpenAlexW2972831564

What OpenQuestion holds

Textmetadata
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.