Evidence map›Paper›PMID 31219949›Full record

Trial reportTherapeutic drug monitoring2019

Pharmacokinetics of Enteric-Coated Mycophenolate Sodium in Lupus Nephritis (POEMSLUN).

Dwarakanathan Ranganathan, Mohd H Abdul-Aziz, George T John, Brett C McWhinney, Robert G Fassett, Helen Healy, Paul Kubler, Aaron Lim, Jeffrey Lipman, Megan Purvey and 4 more

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Therapeutic drug monitoring, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

3 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
  2. Article
  3. 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

14 authors at 3 institutions in 1 country.

Dwarakanathan RanganathanDepartment of Renal Medicine, Royal Brisbane and Women's Hospital.
Mohd H Abdul-AzizFaculty of Medicine, University of Queensland Centre for Clinical Research (UQCCR), The University of Queensland.
George T JohnDepartment of Renal Medicine, Royal Brisbane and Women's Hospital.
Brett C McWhinneyPathology Queensland, Royal Brisbane and Women's Hospital.
Robert G FassettFaculty of Medicine, University of Queensland Centre for Clinical Research (UQCCR), The University of Queensland.
Helen HealyDepartment of Renal Medicine, Royal Brisbane and Women's Hospital.
Paul Kubler
Aaron LimDepartment of Renal Medicine, Royal Brisbane and Women's Hospital.
Jeffrey LipmanIntensive Care Medicine, Royal Brisbane and Women's Hospital.
Megan PurveyDepartment of Renal Medicine, Royal Brisbane and Women's Hospital.
Matthew RobertsDepartment of Renal Medicine, Royal Brisbane and Women's Hospital.
Reza ReyaldeenDepartment of Renal Medicine, Royal Brisbane and Women's Hospital.
Jacobus UngererPathology Queensland, Royal Brisbane and Women's Hospital.
Jason A RobertsFaculty of Medicine, University of Queensland Centre for Clinical Research (UQCCR), The University of Queensland.
Royal Brisbane and Women's Hospital · AUUniversity of Queensland · AUGriffith University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMycophenolate mofetil or enteric-coated mycophenolate sodium (EC-MPS) and steroids are used for induction and maintenance therapy in severe lupus nephritis. Blood concentrations of mycophenolic acid (MPA), the active metabolite of these drugs, vary among patients with lupus nephritis. The objective of this study was to examine whether concentration-controlled (CC) dosing (through therapeutic drug monitoring) of EC-MPS results in a higher proportion of participants achieving target exposure of MPA compared with fixed-dosing (FD). An additional aim of the study was to evaluate the influence of CC dosing on clinical outcomes.

methodsNineteen participants were randomly assigned either to the FD or CC group. All the participants were eligible to have free and total measurements of MPA over a period of 8-12 hours on 3 different occasions. Area under the concentration-time curve between 0 and 12 hours (AUC0-12) was calculated using noncompartmental methods. Dose of EC-MPS was titrated according to AUC0-12 in the CC group.

resultsThirty-two AUC0-12 measurements were obtained from 9 FD and 9 CC participants. Large inter-patient variability was observed in both groups but was more pronounced in the FD group. There were no significant differences between FD and CC participants in any pharmacokinetic parameters across the study visits, except for total C0 (FD 2.0 ± 0.3 mg/L versus CC 1.1 ± 0.3; P = 0.01) and dose-normalized C0 (FD 2.9 ± 0.2 mg/L/g versus CC 2.1 ± 0.7 mg/L/g; P = 0.04) at the second visit and total AUC0-12 (FD 66.6 ± 6.0 mg·h/L versus CC 35.2 ± 11.4 mg·h/L; P = 0.03) at the third visit. At the first study visit, 33.3% of the FD and 11.1% of the CC participants achieved the target area under the concentration-time curve (P = 0.58). From the second visit, none of the FD participants, compared with all the CC participants, achieved target AUC0-12 (P = 0.01). More CC participants achieved remission compared with FD participants (absolute difference of -22.2, 95% confidence interval (Equation is included in full-text article.)0.19 to 0.55; P = 0.62). The mean free MPA AUC0-12 was significantly lower in those who had complete remission.

conclusionsCC participants reached target AUC0-12 quicker. Larger studies are required to test clinical efficacy.

Indexed as

Drug MonitoringAdultEnzyme InhibitorsFemaleHumansLupus NephritisMaleMiddle AgedMycophenolic AcidEnzyme InhibitorsMycophenolic Acid

Identifiers

PMID31219949
PMCPMC6867677
OpenAlexW2952737233

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.