Evidence map›Paper›PMID 24284287›Full record

Trial reportLancet (London, England)2014

Trimethoprim-sulfamethoxazole versus trimethoprim-sulfamethoxazole plus doxycycline as oral eradicative treatment for melioidosis (MERTH): a multicentre, double-blind, non-inferiority, randomised controlled trial.

Ploenchan Chetchotisakd, Wirongrong Chierakul, Wipada Chaowagul, Siriluck Anunnatsiri, Kriangsak Phimda, Piroon Mootsikapun, Seksan Chaisuksant, Jiraporn Pilaikul, Bandit Thinkhamrop, Sunchai Phiphitaporn and 9 more

Open access · hybridAbstract readComparative StudyMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Lancet (London, England), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 2 pooled it
8.1field-weighted citation impact, top 2% 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

65 citing papers in PubMed, 2 syntheses or guidelines pooled it, 153 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Disseminated melioidosis due to ceftazidime-resistant Burkholderia pseudomallei in a Spanish traveler.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2026
    Article
  8. Article
  9. Case Report: Genetic evolution ofWellcome open research · 2025
    Article
  10. Review
  11. Article
  12. [Characteristics and Diagnostic Tests of Melioidosis].Jugan geon-gang gwa jilbyeong · 2024
    Review
  13. Marmosets as models of infectious diseases.Frontiers in cellular and infection microbiology · 2024
    Review
  14. Article
  15. Article
  16. Antibiotic susceptibility of clinicalAntimicrobial agents and chemotherapy · 2023
    Article
  17. Article
  18. Review
  19. Review
  20. Article

5 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

19 authors at 7 institutions in 2 countries.

Ploenchan ChetchotisakdFaculty of Medicine, Khon Kaen University, Thailand; Melioidosis Research Centre, Khon Kaen University, Thailand.
Wirongrong ChierakulFaculty of Tropical Medicine, Mahidol University, Thailand.
Wipada ChaowagulSappasithiprasong Hospital, Ubon Ratchathani, Thailand.
Siriluck AnunnatsiriFaculty of Medicine, Khon Kaen University, Thailand; Melioidosis Research Centre, Khon Kaen University, Thailand.
Kriangsak PhimdaUdon Thani Hospital, Udon Thani, Thailand.
Piroon MootsikapunFaculty of Medicine, Khon Kaen University, Thailand.
Seksan ChaisuksantKhon Kaen Hospital, Khon Kaen, Thailand.
Jiraporn PilaikulMahasarakam Hospital, Mahasarakam, Thailand.
Bandit ThinkhamropFaculty of Public Health, Khon Kaen University, Thailand.
Sunchai PhiphitapornUdon Thani Hospital, Udon Thani, Thailand.
Wattanachai SusaengratKhon Kaen Hospital, Khon Kaen, Thailand.
Chalongchai ToondeeMahasarakam Hospital, Mahasarakam, Thailand.
Surasakdi WongrattanacheewinFaculty of Medicine, Khon Kaen University, Thailand; Melioidosis Research Centre, Khon Kaen University, Thailand.
Vanaporn WuthiekanunFaculty of Tropical Medicine, Mahidol University, Thailand.
Narisara ChantratitaFaculty of Tropical Medicine, Mahidol University, Thailand.
Janjira ThaipadungpanitFaculty of Tropical Medicine, Mahidol University, Thailand.
Nicholas P DayFaculty of Tropical Medicine, Mahidol University, Thailand; University of Oxford, Churchill Hospital, Oxford, UK.
Direk LimmathurotsakulFaculty of Tropical Medicine, Mahidol University, Thailand. Electronic address: direk@tropmedres.ac.
Sharon J PeacockFaculty of Tropical Medicine, Mahidol University, Thailand; University of Cambridge, Addenbrooke's Hospital, Cambridge, United Kingdom.
Khon Kaen University · THMahidol University · THMahasarakham University · THUdon Thani Hospital · THAddenbrooke's Hospital · GBSappasithiprasong Hospital · THUniversity of Oxford · GB

Funding

Wellcome TrustWellcome Trust 077166/Z/05/AWellcome Trust 089275/Z/09/Z
6 · The paper itself

Abstract

backgroundMelioidosis, an infectious disease caused by the Gram-negative bacillus Burkholderia pseudomallei, is difficult to cure. Antimicrobial treatment comprises intravenous drugs for at least 10 days, followed by oral drugs for at least 12 weeks. The standard oral regimen based on trial evidence is trimethoprim-sulfamethoxaxole (TMP-SMX) plus doxycycline. This regimen is used in Thailand but is associated with side-effects and poor adherence by patients, and TMP-SMX alone is recommended in Australia. We compared the efficacy and side-effects of TMP-SMX with TMP-SMX plus doxycycline for the oral phase of melioidosis treatment.

methodsFor this multi-centre, double-blind, non-inferiority, randomised placebo-controlled trial, we enrolled patients (aged ≥15 years) from five centres in northeast Thailand with culture-confirmed melioidosis who had received a course of parenteral antimicrobial drugs. Using a computer-generated sequence, we randomly assigned patients to receive TMP-SMX plus placebo or TMP-SMX plus doxycycline for 20 weeks (1:1; block size of ten, stratified by study site). We followed patients up every 4 months for 1 year and annually thereafter to the end of the study. The primary endpoint was culture-confirmed recurrent melioidosis, and the non-inferiority margin was a hazard ratio (HR) of 1.7. This study is registered with www.controlled-trials.com, number ISRCTN86140460.

findingsWe enrolled and randomly assigned 626 patients: 311 to TMP-SMX plus placebo and 315 to TMP-SMX plus doxycycline. 16 patients (5%) in the TMP-SMX plus placebo group and 21 patients (7%) in the TMP-SMX plus doxycycline group developed culture-confirmed recurrent melioidosis (HR 0.81; 95% CI 0.42-1.55). The criterion for non-inferiority was met (p=0.01). Adverse drug reactions were less common in the TMP-SMX plus placebo group than in the TMP-SMX plus doxycycline group (122 [39%] vs 167 [53%]).

interpretationOur findings suggest that TMP-SMX is not inferior to TMP-SMX plus doxycycline for the oral phase of melioidosis treatment, and is preferable on the basis of safety and tolerance by patients.

fundingThailand Research Fund, the Melioidosis Research Center, the Center of Excellence in Specific Health Problems in Greater Mekong Sub-region cluster, and the Wellcome Trust.

Indexed as

Administration, OralAdultAnti-Bacterial AgentsDouble-Blind MethodDoxycyclineFemaleHumansKaplan-Meier EstimateMaleMelioidosisMiddle AgedRecurrenceThailandTreatment OutcomeTrimethoprim, Sulfamethoxazole Drug CombinationAnti-Bacterial AgentsDoxycyclineTrimethoprim, Sulfamethoxazole Drug Combination

Identifiers

PMID24284287
PMCPMC3939931
OpenAlexW2105228587

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.