Evidence map›Paper›PMID 25801567›Full record

Trial reportAntimicrobial agents and chemotherapy2015

Influence of ABCC2 and ABCC4 polymorphisms on tenofovir plasma concentrations in Thai HIV-infected patients.

Kanokrat Rungtivasuwan, Anchalee Avihingsanon, Narukjaporn Thammajaruk, Siwaporn Mitruk, David M Burger, Kiat Ruxrungtham, Baralee Punyawudho, Thitima Pengsuparp

Registry-linked trialOpen access · bronzeAbstract readClinical Trial
In one paragraph

Trial report in Antimicrobial agents and chemotherapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01138241 (Incidence and Predictor of TDF Associated Nephrotoxicity and Pharmacokinetic of TDF in HIV-1 Infected Thai Patients), which is not on this map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 7% 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.

NCT01138241 completednot on this map

Incidence and Predictor of TDF Associated Nephrotoxicity and Pharmacokinetic of TDF in HIV-1 Infected Thai Patients: A Sub-study of HIV-NAT 006 Long Term Cohort

TypeobservationalSponsorThe HIV Netherlands Australia Thailand Research CollaborationRan2010 to 2017Enrolled700ConditionsRenal Function, HIV InfectionArmsTc99mDTPA renal clearance
3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 48 citations in OpenAlex.

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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

8 authors at 5 institutions in 2 countries.

Kanokrat RungtivasuwanDepartment of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand.
Anchalee AvihingsanonHIV-NAT, Thai Red Cross AIDS Research Centre, Bangkok, Thailand Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
Narukjaporn ThammajarukHIV-NAT, Thai Red Cross AIDS Research Centre, Bangkok, Thailand.
Siwaporn MitrukDepartment of Pharmacy, Faculty of Medicine, Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand.
David M BurgerDepartment of Pharmacy, Radboud University Medical Center, Nijmegen, The Netherlands.
Kiat RuxrungthamHIV-NAT, Thai Red Cross AIDS Research Centre, Bangkok, Thailand Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
Baralee PunyawudhoDepartment of Pharmaceutical Care, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand baralee.p@cmu.ac.th thitima.pe@pharm.chula.ac.th.
Thitima PengsuparpDepartment of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand baralee.p@cmu.ac.th thitima.pe@pharm.chula.ac.th.
Chulalongkorn University · THHIV Netherlands Australia Thailand Research Collaboration · THChiang Mai University · THRadboud University Nijmegen · NLVajira Hospital · TH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tenofovir (TFV) is eliminated by renal excretion, which is mediated through multidrug-resistant protein 2 (MRP2) and MRP4, encoded by ABCC2 and ABCC4, respectively. Genetic polymorphisms of these transporters may affect the plasma concentrations of tenofovir. Therefore, the aim of this study was to investigate the influence of genetic and nongenetic factors on tenofovir plasma concentrations. A cross-sectional study was performed in Thai HIV-infected patients aged ≥18 years who had been receiving tenofovir disoproxil fumarate at 300 mg once daily for at least 6 months. A middose tenofovir plasma concentration was obtained. Multivariate analysis was performed to investigate whether there was an association between tenofovir plasma concentrations and demographic data, including age, sex, body weight, estimated glomerular filtration rate (eGFR), hepatitis B virus coinfection, hepatitis C virus coinfection, duration of tenofovir treatment, concomitant use of ritonavir-boosted protease inhibitors, and polymorphisms of ABCC2 and ABCC4. A total of 150 Thai HIV-infected patients were included. The mean age of the patients was 43.9 ± 7.2 years. The mean tenofovir plasma concentration was 100.3 ± 52.7 ng/ml. In multivariate analysis, a low body weight, a low eGFR, the concomitant use of ritonavir-boosted protease inhibitors, and the ABCC4 4131T → G variation (genotype TG or GG) were independently associated with higher tenofovir plasma concentrations. After adjusting for weight, eGFR, and the concomitant use of ritonavir-boosted protease inhibitors, a 30% increase in the mean tenofovir plasma concentration was observed in patients having the ABCC4 4131 TG or GG genotype. Both genetic and nongenetic factors affect tenofovir plasma concentrations. These factors should be considered when adjusting tenofovir dosage regimens to ensure the efficacy and safety of a drug. (This study has been registered at ClinicalTrials.gov under registration no. NCT01138241.).

Indexed as

AdultAnti-HIV AgentsAsian PeopleATP-Binding Cassette, Sub-Family C ProteinsCross-Sectional StudiesFemaleGenotyping TechniquesHIV InfectionsHumansMaleMiddle AgedMultidrug Resistance-Associated Protein 2Polymorphism, GeneticTenofovirABCC2 protein, humanABCC4 protein, humanAnti-HIV AgentsATP-Binding Cassette, Sub-Family C ProteinsMultidrug Resistance-Associated Protein 2Tenofovir

Identifiers

PMID25801567
PMCPMC4432150
OpenAlexW2145936062

What OpenQuestion holds

Textmetadata
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Registered trials

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.