Evidence map›Paper›PMID 40131716›Full record

ArticleJournal of nephrology2025

Dosing practices, pharmacokinetics, and effectiveness of allopurinol in gout patients receiving dialysis: a scoping review.

Noha A Kamel, Michael A Stokes, Daniel F B Wright, Kamal Sud, Surjit Tarafdar, Ronald L Castelino, Sophie L Stocker

Abstract readScoping Review
In one paragraph

Article in Journal of nephrology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. Article
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.

Noha A KamelSchool of Pharmacy, Faculty of Medicine and Health, The University of Sydney, A15 Pharmacy and Bank Building, Science Road, Camperdown, NSW, 2006, Australia.ORCID http://orcid.org/0000-0002-3299-9555
Michael A StokesSchool of Pharmacy, Faculty of Medicine and Health, The University of Sydney, A15 Pharmacy and Bank Building, Science Road, Camperdown, NSW, 2006, Australia.ORCID http://orcid.org/0009-0005-6615-4998
Daniel F B WrightSchool of Pharmacy, Faculty of Medicine and Health, The University of Sydney, A15 Pharmacy and Bank Building, Science Road, Camperdown, NSW, 2006, Australia.ORCID http://orcid.org/0000-0001-9313-9252
Kamal SudNepean Clinical School, The University of Sydney, Sydney, NSW, 2006, Australia.ORCID http://orcid.org/0000-0001-7648-007X
Surjit TarafdarDepartment of Renal Medicine, Nepean Kidney Research Centre, Nepean Hospital, Kingswood, NSW, 2750, Australia.ORCID http://orcid.org/0000-0002-6490-0708
Ronald L CastelinoSchool of Pharmacy, Faculty of Medicine and Health, The University of Sydney, A15 Pharmacy and Bank Building, Science Road, Camperdown, NSW, 2006, Australia.ORCID http://orcid.org/0000-0002-5128-7115
Sophie L StockerSchool of Pharmacy, Faculty of Medicine and Health, The University of Sydney, A15 Pharmacy and Bank Building, Science Road, Camperdown, NSW, 2006, Australia. sophie.stocker@sydney.edu.au.ORCID http://orcid.org/0000-0002-2114-587X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Urate and oxypurinol, allopurinol's active metabolite, are predominantly eliminated by the kidneys. Therefore, optimising allopurinol dosing in patients on dialysis is challenging. This review explores allopurinol dosing practices, oxypurinol pharmacokinetics, and effectiveness in gout patients receiving haemodialysis or peritoneal dialysis (PD). Five databases and grey literature were searched. Studies on gout patients on allopurinol, receiving dialysis, and reporting dosing, pharmacokinetics, or effectiveness (reduction in urate and/or gout flares) were included. Abstract, full text screening and data extraction were done by two authors. Studies were grouped by dialysis modality. Eighteen studies were identified including 390 patients, most (n = 274, 70%) on haemodialysis with allopurinol administered after dialysis. The peritoneal dialytic clearance of oxypurinol (3.14 mL/min, n = 5) and urate (2.7-4 mL/min, n = 25) was similar. The haemodialytic clearance was 78-137 mL/min for oxypurinol (n = 21) and 80-165 mL/min for urate (n = 19). Allopurinol doses were higher in haemodialysis (100-600 mg/day) than PD (110-125 mg/day). Haemodialysis sessions decreased oxypurinol and urate concentrations by 39-57% (n = 30) and 56-71% (n = 6), respectively. Over time (1-230 days), urate concentrations in haemodialysis (n = 85) reduced by 14-41%. Target serum urate (< 0.36 mmol/L) was achieved in 61% (20/33) and 47% (13/28) of haemodialysis and PD patients, respectively. Gout flares decreased from 2 to 0.1 attacks/year in patients receiving dialysis (n = 79). Oxypurinol and urate clearance by haemodialysis was higher than PD, necessitating higher doses of allopurinol. POST dialysis allopurinol doses titrated to target urate are suggested. Future studies considering the impact of dialysis modality on allopurinol dose requirements are needed.

Indexed as

AllopurinolGoutGout SuppressantsRenal DialysisHumansPeritoneal DialysisTreatment OutcomeUric AcidAllopurinolGout SuppressantsUric AcidAllopurinolDialysisGoutPharmacokineticsUrate

Identifiers

PMID40131716
PMCPMC12166007

What OpenQuestion holds

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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.