Evidence map›Paper›PMID 31651031›Full record

ArticleThe Journal of antimicrobial chemotherapy2019

Effect of diabetes mellitus on TB drug concentrations in Tanzanian patients.

Charles M Mtabho, Hadija H Semvua, Jossy van den Boogaard, Constantine F Irongo, Martin J Boeree, Angela Colbers, David M Burger, Reinout van Crevel, Andre J A M van der Ven, Gibson S Kibiki and 2 more

Abstract readComparative Study
In one paragraph

Article in The Journal of antimicrobial chemotherapy, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 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, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Impact of Diabetes Mellitus in Tuberculosis (TB) Patients on TB Transmission.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Therapeutic drug monitoring in tuberculosis.European journal of clinical pharmacology · 2024
    Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Clinical standards for the dosing and management of TB drugs.The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease · 2022
    Article
  14. Review
  15. Article
  16. Article
  17. Lower Cumulative Antiretroviral Exposure in People Living With HIV and Diabetes Mellitus.Journal of acquired immune deficiency syndromes (1999) · 2020
    Article
  18. 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

12 authors.

Charles M MtabhoKilimanjaro Clinical Research Institute, Kilimanjaro Christian Medical Centre, Moshi, Tanzania.
Hadija H SemvuaKilimanjaro Clinical Research Institute, Kilimanjaro Christian Medical Centre, Moshi, Tanzania.
Jossy van den BoogaardKilimanjaro Clinical Research Institute, Kilimanjaro Christian Medical Centre, Moshi, Tanzania.
Constantine F IrongoKilimanjaro Clinical Research Institute, Kilimanjaro Christian Medical Centre, Moshi, Tanzania.
Martin J BoereeRadboud university medical center, Department of Lung Diseases & Radboud Institute for Health Sciences, Nijmegen, The Netherlands.
Angela ColbersRadboud university medical center, Department of Pharmacy & Radboud Institute for Health Sciences, Nijmegen, The Netherlands.
David M BurgerRadboud university medical center, Department of Pharmacy & Radboud Institute for Health Sciences, Nijmegen, The Netherlands.
Reinout van CrevelRadboud university medical center, Department of Internal Medicine & Radboud Institute for Health Sciences, Nijmegen, The Netherlands.
Andre J A M van der VenRadboud university medical center, Department of Internal Medicine & Radboud Institute for Health Sciences, Nijmegen, The Netherlands.
Gibson S KibikiKilimanjaro Clinical Research Institute, Kilimanjaro Christian Medical Centre, Moshi, Tanzania.
Alma TostmannRadboud university medical center, Department of Lung Diseases & Radboud Institute for Health Sciences, Nijmegen, The Netherlands.
Rob E AarnoutseRadboud university medical center, Department of Pharmacy & Radboud Institute for Health Sciences, Nijmegen, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDiabetes mellitus (DM) is associated with poor TB treatment outcome. Previous studies examining the effect of DM on TB drug concentrations yielded conflicting results. No studies have been conducted to date in an African population.

objectivesTo compare exposure to TB drugs in Tanzanian TB patients with and without DM. PATIENTS AND

methodsA prospective pharmacokinetic study was performed among 20 diabetic and 20 non-diabetic Tanzanian TB patients during the intensive phase of TB treatment. Plasma pharmacokinetic parameters of isoniazid, rifampicin, pyrazinamide and ethambutol were compared using an independent-sample t-test on log-transformed data. Multiple linear regression analysis was performed to assess the effects of DM, gender, age, weight, HIV status and acetylator status on exposure to TB drugs.

resultsA trend was shown for 25% lower total exposure (AUC0-24) to rifampicin among diabetics versus non-diabetics (29.9 versus 39.9 mg·h/L, P=0.052). The AUC0-24 and peak concentration (Cmax) of isoniazid were also lower in diabetic TB patients (5.4 versus 10.6 mg·h/L, P=0.015 and 1.6 versus 2.8 mg/L, P=0.013). Pyrazinamide AUC0-24 and Cmax values were non-significantly lower among diabetics (P=0.08 and 0.09). In multivariate analyses, DM remained an independent predictor of exposure to isoniazid and rifampicin, next to acetylator status for isoniazid.

conclusionsThere is a need for individualized dosing of isoniazid and rifampicin based on plasma concentration measurements (therapeutic drug monitoring) and for clinical trials on higher doses of these TB drugs in patients with TB and DM.

Indexed as

Diabetes ComplicationsAdultAgedAged, 80 and overAntitubercular AgentsDiabetes MellitusFemaleHumansIsoniazidMaleMiddle AgedPlasmaProspective StudiesPyrazinamideRifampinTanzaniaAntitubercular AgentsIsoniazidPyrazinamideRifampin

Identifiers

PMID31651031
PMCPMC7183353

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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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.