Evidence map›Paper›PMID 25781958›Full record

Observational studyPloS one2015

Doing no harm? Adverse events in a nation-wide cohort of patients with multidrug-resistant tuberculosis in Nigeria.

Yohanna Kamabi Avong, Petros Isaakidis, Sven Gudmund Hinderaker, Rafael Van den Bergh, Engy Ali, Bolajoko Oladunni Obembe, Ernest Ekong, Clement Adebamowo, Nicaise Ndembi, James Okuma and 9 more

Open access · goldAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 14% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. 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
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Integration of drug safety monitoring in tuberculosis treatment programmes: country experiences.European respiratory review : an official journal of the European Respiratory Society · 2019
    Review
  12. Article
  13. Governance of tuberculosis control programme in Nigeria.Infectious diseases of poverty · 2019
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Evaluation of community-based treatment for drug-resistant tuberculosis in Bangladesh.Tropical medicine & international health : TM & IH · 2016
    Article
  20. Article
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

19 authors at 6 institutions in 5 countries.

Yohanna Kamabi AvongInstitute of Human Virology, Abuja, Nigeria.
Petros IsaakidisMédecins Sans Frontières, Operational Research Unit, Luxembourg City, Luxembourg.
Sven Gudmund HinderakerCentre for International Health, University of Bergen, Bergen, Norway.
Rafael Van den BerghMédecins Sans Frontières, Operational Research Unit, Luxembourg City, Luxembourg.
Engy AliMédecins Sans Frontières, Operational Research Unit, Luxembourg City, Luxembourg.
Bolajoko Oladunni ObembeInstitute of Human Virology, Abuja, Nigeria.
Ernest EkongInstitute of Human Virology, Abuja, Nigeria.
Clement AdebamowoInstitute of Human Virology, Abuja, Nigeria; University of Maryland School of Medicine, Baltimore, Maryland, United States of America.
Nicaise NdembiInstitute of Human Virology, Abuja, Nigeria.
James OkumaInstitute of Human Virology, Abuja, Nigeria.
Adeline OsakweNational Agency for Food and Drug Administration Control, Abuja, Nigeria.
Olanrewaju OladimejiZankli Medical Centre, Abuja, Nigeria; Liverpool School of Tropical Medicines, Pembroke Place, Liverpool, United Kingdom.
Gabriel AkangNational Tuberculosis and Leprosy Control Program, Abuja, Nigeria.
Joshua Olusegun ObasanyaNational Tuberculosis and Leprosy Control Program, Abuja, Nigeria.
Osman EltayebDamien Foundation Belgium, Nigeria Project, Ibadan, Nigeria.
Aderonke Vivian AgbajeInstitute of Human Virology, Abuja, Nigeria.
Alash'le AbimikuInstitute of Human Virology, Abuja, Nigeria.
Charles Olalekan MensahInstitute of Human Virology, Abuja, Nigeria.
Patrick Sunday DakumInstitute of Human Virology, Abuja, Nigeria.
Institute of Human Virology · NGMédecins Sans Frontières · LUNational Agency for the Control of AIDS · NGUniversity of Bergen · NOUniversity of Maryland, Baltimore · USZankli Medical Centre · NG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAdverse events (AEs) of second line anti-tuberculosis drugs (SLDs) are relatively well documented. However, the actual burden has rarely been described in detail in programmatic settings. We investigated the occurrence of these events in the national cohort of multidrug-resistant tuberculosis (MDR-TB) patients in Nigeria.

methodThis was a retrospective, observational cohort study, using pharmacovigilance data systematically collected at all MDR-TB treatment centers in Nigeria. Characteristics of AEs during the intensive phase treatment were documented, and risk factors for development of AEs were assessed.

resultsFour hundred and sixty patients were included in the analysis: 62% were male; median age was 33 years [Interquartile Range (IQR):28-42] and median weight was 51 kg (IQR: 45-59). Two hundred and three (44%) patients experienced AEs; four died of conditions associated with SLD AEs. Gastro-intestinal (n = 100), neurological (n = 75), ototoxic (n = 72) and psychiatric (n = 60) AEs were the most commonly reported, whereas ototoxic and psychiatric AEs were the most debilitating. Majority of AEs developed after 1-2 months of therapy, and resolved in less than a month after treatment. Some treatment centers were twice as likely to report AEs compared with others, highlighting significant inconsistencies in reporting at different treatment centers. Patients with a higher body weight had an increased risk of experiencing AEs. No differences were observed in risk of AEs between HIV-infected and uninfected patients. Similarly, age was not significantly associated with AEs.

conclusionPatients in the Nigerian MDR-TB cohort experienced a wide range of AEs, some of which were disabling and fatal. Early identification and prompt management as well as standardized reporting of AEs at all levels of healthcare, including the community is urgently needed. Safer regimens for drug-resistant TB with the shortest duration are advocated.

Indexed as

Tuberculosis, Multidrug-ResistantAdultFemaleHumansMaleNigeriaPharmacovigilanceRetrospective Studies

Identifiers

PMID25781958
PMCPMC4364363
OpenAlexW2120197453

What OpenQuestion holds

Textmetadata
LicenceCC0
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.