Evidence map›Paper›PMID 30762079›Full record

ArticleEuropean journal of clinical pharmacology2019

Reduction of exposure to tacrolimus trough level variability is associated with better graft survival after kidney transplantation.

Ruth Rahamimov, Hagit Tifti-Orbach, Boris Zingerman, Hefziba Green, Shira Schneider, Avry Chagnac, Eytan Mor, Benjamin D Fox, Benaya Rozen-Zvi

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In one paragraph

Article in European journal of clinical pharmacology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
–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

18 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  17. A comprehensive review of the impact of tacrolimus intrapatient variability on clinical outcomes in kidney transplantation.American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons · 2020
    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

9 authors.

Ruth RahamimovDepartment of Nephrology and Hypertension, Rabin Medical Center, Beilinson campus, 39, Jabutinsky st., Petah Tikva, Israel. rutir@clalit.org.il.ORCID http://orcid.org/0000-0002-1346-3771
Hagit Tifti-OrbachSackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
Boris ZingermanSackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
Hefziba GreenDepartment of Nephrology and Hypertension, Rabin Medical Center, Beilinson campus, 39, Jabutinsky st., Petah Tikva, Israel.
Shira SchneiderDepartment of Nephrology and Hypertension, Rabin Medical Center, Beilinson campus, 39, Jabutinsky st., Petah Tikva, Israel.
Avry ChagnacDepartment of Nephrology and Hypertension, Rabin Medical Center, Beilinson campus, 39, Jabutinsky st., Petah Tikva, Israel.
Eytan MorDepartment of Transplantation, Rabin Medical Center, Beilinson campus, Petah Tikva, Israel.
Benjamin D FoxSackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
Benaya Rozen-ZviDepartment of Nephrology and Hypertension, Rabin Medical Center, Beilinson campus, 39, Jabutinsky st., Petah Tikva, Israel.

Funding

none none
6 · The paper itself

Abstract

purposeHigh tacrolimus trough drug level variability was found to be associated with reduced graft survival. The primary goal of this study was to find whether reduction of exposure to high tacrolimus trough level variability in patients in which previously had high variability was associated with better graft survival.

methodsAll tacrolimus drug level values in patients that underwent kidney transplantation at our center between 2006 and 2015 were collected. Exposure to variability was calculated using a time-weighted coefficient of variability (TWCV). Time-dependent univariate and multivariate Cox proportional hazard models were used to analyze the primary outcome of graft survival and to determine a cutoff value for TWCV as a predictor of this outcome.

resultsA total of 878 patients were included in the study with a median follow-up of 1263 days. TWCV above 25% was significantly associated with reduced graft survival (HR3.66, 95% CI 2.3-5.8, p < 0.001). Of the 480 patients (54.7%) who had a cumulative TWCV of > 25% at a certain time during the follow-up, 110 (22.9%) later returned to a cumulative TWCV of less than 25%. Reduction of TWCV to values below 25% was associated with a hazard of graft loss that was not different from patients who had cumulative TWCV of less than 25% during the entire follow-up period (HR 1.81, 95% CI 0.71-4.62, p = 0.218 and HR 1.08, 95% CI 0.39-2.99, p = 0.780) in univariate and multivariate analyses, respectively.

conclusionsMonitoring TWCV can help detect the high-risk patients. Interventions intended to reduce variability on long-term graft survival may have a positive effect on graft survival.

Indexed as

Graft SurvivalKidney TransplantationAdultFemaleHumansImmunosuppressive AgentsMaleMiddle AgedTacrolimusImmunosuppressive AgentsTacrolimusGraft survivalKidney transplantationTacrolimusTrough levelsVariability

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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.