Evidence map›Paper›PMID 35005315›Full record

ArticleKidney international reports2022

Efficacy of Rituximab in Treatment-Resistant Focal Segmental Glomerulosclerosis With Elevated Soluble Urokinase-Type Plasminogen Activator Receptor and Activation of Podocyte β3 Integrin.

Michelle A Hladunewich, Dan Cattran, Sanjeev M Sethi, Salim S Hayek, Jing Li, Changli Wei, Sarah I Mullin, Heather N Reich, Jochen Reiser, Fernando C Fervenza

Open access · goldAbstract read
In one paragraph

Article in Kidney international reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.7field-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

13 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
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  4. Management of adult patients with podocytopathies: an update from the ERA Immunonephrology Working Group.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2024
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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

10 authors at 5 institutions in 2 countries.

Michelle A HladunewichDivision of Nephrology, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.
Dan CattranDivision of Nephrology, Department of Medicine, University Health Network, University of Toronto, Toronto, Ontario, Canada.
Sanjeev M SethiDepartment of Pathology, Mayo Clinic, Rochester, Minnesota, USA.
Salim S HayekDivision of Cardiology, Department of Medicine, University of Michigan, Ann Arbor, Minnesota, USA.
Jing LiDivision of Nephrology, Department of Medicine, Rush University Medical Center, Chicago, Illinois, USA.
Changli WeiDivision of Nephrology, Department of Medicine, Rush University Medical Center, Chicago, Illinois, USA.
Sarah I MullinDivision of Nephrology, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.
Heather N ReichDivision of Nephrology, Department of Medicine, University Health Network, University of Toronto, Toronto, Ontario, Canada.
Jochen ReiserDivision of Nephrology, Department of Medicine, Rush University Medical Center, Chicago, Illinois, USA.
Fernando C FervenzaDivision of Nephrology, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA.
Rush University Medical Center · USUniversity of Toronto · CAMayo Clinic · USSunnybrook Health Science Centre · CAUniversity of Michigan–Ann Arbor · US

Funding

Role of SuPAR in the Intersection between Cardiovascular and Kidney DiseaseR01HL153384 · NHLBI · UNIVERSITY OF TEXAS MED BR GALVESTON · PI HAYEK, SALIM · 2020 to 2024
$2.5M
NHLBI NIH HHS R01 HL153384
6 · The paper itself

Abstract

introductionSevere, nonresponsive, primary focal segmental glomerular sclerosis (FSGS) can progress to end-stage kidney disease (ESKD) in <5 years. Soluble urokinase-type plasminogen activator receptor (suPAR) may contribute to podocyte effacement by activating podocyte β3 integrin. It has been reported as a potential permeability factor and biomarker for primary FSGS. Rituximab was found to have efficacy in case reports and small series. Whether rituximab is efficacious in patients with treatment-resistant FSGS in the context of high suPAR levels and evidence of podocyte B3 integrin activation remains unknown.

methodsIn this nonblinded, open-label pilot study, the safety and efficacy of rituximab were evaluated in treatment-resistant adult patients with primary FSGS and a suPAR level > 3500 pg/ml with evidence of β3 integrin activation. Rituximab (1 g) was given on days 1 and 15. The primary outcome was proteinuria at 12 months.

resultsOnly 13 of 38 screened patients qualified for the study, of whom 9 consented to participate. The baseline proteinuria and glomerular filtration rate (GFR) levels were 7.70 ± 4.61 g/d and 67 ± 38 ml/min, respectively. A transient response at 6 months was noted in 2 patients without a parallel change in suPAR level. At 12 months, there was no statistically significant improvement in proteinuria level with all participants remaining nephrotic (7.27 ± 7.30 g/d). GFR level marginally declined to 60 ± 38 ml/min with one patient progressing to ESKD. There were 2 serious infections, an infusion-related reaction and leucopenia attributed to rituximab.

conclusionRituximab was ineffective when administered to adult patients with treatment-resistant primary FSGS with a high suPAR and evidence of podocyte activation.

Indexed as

focal segmental glomerulosclerosis (FSGS)nephrotic syndromerituximabsoluble urokinase-type plasminogen activator receptor (suPAR)treatment resistance

Identifiers

PMID35005315
PMCPMC8720804
OpenAlexW3208894493

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.