Evidence map›Paper›PMID 34013390›Full record

ArticlePharmaceutical research2021

Population Pharmacokinetic Analysis and Dosing Optimization Based on Unbound Daptomycin Concentration and Cystatin C in Nonobese Elderly Patients with Hypoalbuminemia and Chronic Kidney Disease.

Masaru Samura, Keisuke Takada, Risako Yamamoto, Hayato Ito, Fumio Nagumo, Masaki Uchida, Takenori Kurata, Sakura Koshioka, Yuki Enoki, Kazuaki Taguchi and 4 more

Abstract read
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Article in Pharmaceutical research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

8 citing papers in PubMed, 18 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

14 authors at 2 institutions in 1 country.

Masaru SamuraDivision of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan.
Keisuke TakadaDepartment of Pharmacy, Yokohama General Hospital, 2201-5 Kuroganecho, Aoba-ku-shi, Yokohama, Kanagawa, 225-0025, Japan.
Risako YamamotoDivision of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan.
Hayato ItoDivision of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan.
Fumio NagumoDepartment of Pharmacy, Yokohama General Hospital, 2201-5 Kuroganecho, Aoba-ku-shi, Yokohama, Kanagawa, 225-0025, Japan.
Masaki UchidaDepartment of Pharmacy, Yokohama General Hospital, 2201-5 Kuroganecho, Aoba-ku-shi, Yokohama, Kanagawa, 225-0025, Japan.
Takenori KurataDepartment of Pharmacy, Yokohama General Hospital, 2201-5 Kuroganecho, Aoba-ku-shi, Yokohama, Kanagawa, 225-0025, Japan.
Sakura KoshiokaDepartment of Pharmacy, Yokohama General Hospital, 2201-5 Kuroganecho, Aoba-ku-shi, Yokohama, Kanagawa, 225-0025, Japan.
Yuki EnokiDivision of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan. enoki-yk@pha.keio.ac.jp.ORCID http://orcid.org/0000-0002-5934-0670
Kazuaki TaguchiDivision of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan.
Ryuji HigashitaWound care center, Yokohama General Hospital, 2201-5 Kuroganecho, Aoba-ku, Yokohama-shi, Kanagawa, 225-0025, Japan.
Norifumi KunikaInternal Medicine, Yokohama General Hospital, 2201-5 Kuroganecho, Aoba-ku, Yokohama-shi, Kanagawa, 225-0025, Japan.
Koji TanikawaDepartment of Pharmacy, Yokohama General Hospital, 2201-5 Kuroganecho, Aoba-ku-shi, Yokohama, Kanagawa, 225-0025, Japan.
Kazuaki MatsumotoDivision of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan.
Yokohama University of Pharmacy · JPKeio University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study evaluated the population pharmacokinetics of daptomycin in nonobese elderly patients with hypoalbuminemia and chronic kidney disease (CKD) using the glomerular filtration rate estimated from cystatin C (eGFRcys) and estimated its optimal dose.

methodsWe performed population pharmacokinetic analysis of the unbound concentrations of daptomycin. The probability of target attainment of 90% for achieving an area under the concentration-time curve of unbound daptomycin at steady state/ minimum inhibitory concentration ratio of ≥66.6 was stochastically simulated.

resultsIn the population pharmacokinetic analysis of 25 patients aged ≥65 years, the two-compartment model using eGFRcys and age as covariates of clearance in central compartment of unbound daptomycin were optimal. The unbound fraction rate (fu) was 0.05-0.14. According to the Monte Carlo simulation, the optimal doses for patients with eGFRcys of 20-60 mL/min and aged 65-95 years were calculated as 200-500 mg q24h.

conclusionThese results suggest that establishing the dose using total concentrations may result in under- or overestimation caused by alterations in fu. The optimal dose for nonobese elderly patients with hypoalbuminemia and CKD depends on eGFRcys and age, and a standard dose may be insufficient for some patients.

Indexed as

Monte Carlo MethodAgedAged, 80 and overAnti-Bacterial AgentsCystatin CDaptomycinDose-Response Relationship, DrugFemaleGlomerular Filtration RateHumansHypoalbuminemiaMaleProspective StudiesProtein BindingRenal Insufficiency, ChronicAnti-Bacterial AgentsCystatin CDaptomycinchronic kidney diseasecystatin Cdaptomycinelderly patientspopulation pharmacokinetics

Identifiers

PMID34013390
OpenAlexW3161246814

What OpenQuestion holds

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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.