Evidence map›Paper›PMID 33181704›Full record

ArticleMedicine2020

Population pharmacokinetics and dosing optimization of metformin in Chinese patients with type 2 diabetes mellitus.

Ling Li, Ziwan Guan, Rui Li, Wei Zhao, Guoxiang Hao, Yan Yan, Yuedong Xu, Lin Liao, Huanjun Wang, Li Gao and 3 more

Abstract read
In one paragraph

Article in Medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

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

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Exome Sequence Data of Eight SLC Transporters Reveal ThatPharmaceuticals (Basel, Switzerland) · 2024
    Article
  6. Review
  7. Effects of plateau hypoxia on population pharmacokinetics and pharmacodynamics of metformin in patients with Type 2 diabetes.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2023
    Article
  8. Review
  9. Review
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

13 authors.

Ling LiSchool of Pharmaceutical Sciences, Shandong University.
Ziwan GuanSchool of Pharmaceutical Sciences, Shandong University.ORCID 0000-0003-0574-6883
Rui LiSchool of Pharmaceutical Sciences, Shandong University.
Wei ZhaoSchool of Pharmaceutical Sciences, Shandong University.
Guoxiang HaoSchool of Pharmaceutical Sciences, Shandong University.
Yan YanSchool of Pharmaceutical Sciences, Shandong University.
Yuedong XuShandong Provincial Qianfoshan Hospital, the First Hospital Affiliated with Shandong First Medical University, Jinan.
Lin LiaoShandong Provincial Qianfoshan Hospital, the First Hospital Affiliated with Shandong First Medical University, Jinan.
Huanjun WangShandong Provincial Qianfoshan Hospital, the First Hospital Affiliated with Shandong First Medical University, Jinan.
Li GaoSchool of Pharmaceutical Sciences, Shandong University.
Kunrong WuSchool of Pharmaceutical Sciences, Shandong University.
Yuxia GaoDepartment of Pharmacy, Shengli Hospital of Shengli Oilfield, Dongying, Shandong, China.
Yan LiSchool of Pharmaceutical Sciences, Shandong University.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Approximately 35% of patients fail to attain ideal initial blood glucose control under metformin monotherapy. The objective of this observational study is to simulate the optimal protocol of metformin according to the different renal function.The population pharmacokinetics of metformin was performed in 125 subjects with type 2 diabetes mellitus. Plasma concentrations of metformin were quantified by high-performance liquid chromatography. A population pharmacokinetic model of metformin was developed using NONMEN (version 7.2, Icon Development Solutions, USA). Monte Carlo simulation was used to simulate the concentration-time profiles for doses of metformin for 1000 times at different stages of renal function.The mean population pharmacokinetic parameters were apparent clearance 53.0 L/h, apparent volume of distribution 438 L, absorption rate constant 1.4 hour and lag-time 0.91 hour. Covariate analyses revealed that estimated glomerular filtration rate (eGFR) and bodyweight as individual factors influencing the apparent oral clearance: CL/F = 53.0 × ( bodyweight/75) × (eGFR/102.5)EXP(0.1797). The results of the simulation showed that patients should be prescribed metformin 2550 mg/d (t.i.d.) vs 3000 mg/d (b.i.d.) as the minimum doses for patients with augmented renal clearance.eGFR had a significant impact on metformin pharmacokinetics. Patients administered metformin twice a day require higher total daily doses than those with a regimen of 3 times a day at each stage of kidney function.

Indexed as

AdultAgedAged, 80 and overChinaDiabetes Mellitus, Type 2FemaleHumansMaleMetforminMiddle AgedMonte Carlo MethodProspective StudiesRisk FactorsMetformin

Identifiers

PMID33181704
PMCPMC7668473

What OpenQuestion holds

Texttitle and abstract
LicenceCC BY-NC
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.