Evidence map›Paper›PMID 17145784›Full record

Trial reportAntimicrobial agents and chemotherapy2007

Randomized controlled comparison of ofloxacin, azithromycin, and an ofloxacin-azithromycin combination for treatment of multidrug-resistant and nalidixic acid-resistant typhoid fever.

Christopher M Parry, Vo Anh Ho, Le Thi Phuong, Phan Van Be Bay, Mai Ngoc Lanh, Le Thanh Tung, Nguyen Thi Hong Tham, John Wain, Tran Tinh Hien, Jeremy J Farrar

2 registry-linked trialsOpen access · greenAbstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Antimicrobial agents and chemotherapy, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 63 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 4 pooled it
15.7field-weighted citation impact, top 1% 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.

NCT02773407 phase3completednot on this mapstarted 2016, after this paper: background citation

Parallel Group, Double Blinded, 1:1, Randomized Controlled Phase III Trial of Co-trimoxazole Versus Azithromycin for the Treatment of Undifferentiated Fever In Nepal

TypeinterventionalSponsorOxford University Clinical Research Unit, VietnamRan2016 to 2019Enrolled330ConditionsUndifferentiated Febrile IllnessArmsAzithromycin, Co-trimoxazole
NCT04349826 phase4completednot on this mapstarted 2021, after this paper: background citation

Azithromycin and Cefixime Combination Versus Azithromycin Alone for the Out-patient Treatment of Clinically Suspected or Confirmed Uncomplicated Typhoid Fever in South Asia; a Randomised Controlled Trial

TypeinterventionalSponsorOxford University Clinical Research Unit, VietnamRan2021 to 2025Enrolled2,150ConditionsTyphoid FeverArmsAzithromycin, Cefixime, Placebo
3 · Its place in the literature

Who cites it

63 citing papers in PubMed, 4 syntheses or guidelines pooled it, 171 citations in OpenAlex.

  1. Pooled it
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  3. Fluoroquinolones for treating typhoid and paratyphoid fever (enteric fever).The Cochrane database of systematic reviews · 2011
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  17. Quantitative bacterial counts in the bone marrow of Vietnamese patients with typhoid fever.Transactions of the Royal Society of Tropical Medicine and Hygiene · 2022
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3 more citing papers are in PubMed but not listed here.

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

10 authors at 3 institutions in 2 countries.

Christopher M ParryOxford University Clinical Research Unit, Ho Chi Minh City, Vietnam. cmparry@liv.ac.uk
Vo Anh Ho
Le Thi Phuong
Phan Van Be Bay
Mai Ngoc Lanh
Le Thanh Tung
Nguyen Thi Hong Tham
John Wain
Tran Tinh Hien
Jeremy J Farrar
Dong Thap Hospital · VNJohn Radcliffe Hospital · GBHospital for Tropical Diseases · VN

Funding

Wellcome Trust
6 · The paper itself

Abstract

Isolates of Salmonella enterica serovar Typhi that are multidrug resistant (MDR, resistant to chloramphenicol, ampicillin, and trimethoprim-sulfamethoxazole) and have reduced susceptibility to fluoroquinolones (nalidixic acid resistant, Na(r)) are common in Asia. The optimum treatment for infections caused by such isolates is not established. This study compared different antimicrobial regimens for the treatment of MDR/Na(r) typhoid fever. Vietnamese children and adults with uncomplicated typhoid fever were entered into an open randomized controlled trial. Ofloxacin (20 mg/kg of body weight/day for 7 days), azithromycin (10 mg/kg/day for 7 days), and ofloxacin (15 mg/kg/day for 7 days) combined with azithromycin (10 mg/kg/day for the first 3 days) were compared. Of the 241 enrolled patients, 187 were eligible for analysis (186 S. enterica serovar Typhi, 1 Salmonella enterica serovar Paratyphi A). Eighty-seven percent (163/187) of the patients were children; of the S. enterica serovar Typhi isolates, 88% (165/187) were MDR and 93% (173/187) were Na(r). The clinical cure rate was 64% (40/63) with ofloxacin, 76% (47/62) with ofloxacin-azithromycin, and 82% (51/62) with azithromycin (P = 0.053). The mean (95% confidence interval [CI]) fever clearance time for patients treated with azithromycin (5.8 days [5.1 to 6.5 days]) was shorter than that for patients treated with ofloxacin-azithromycin (7.1 days [6.2 to 8.1 days]) and ofloxacin (8.2 days [7.2 to 9.2 days]) (P < 0.001). Positive fecal carriage immediately posttreatment was detected in 19.4% (12/62) of patients treated with ofloxacin, 6.5% (4/62) of those treated with the combination, and 1.6% (1/62) of those treated with azithromycin (P = 0.006). Both antibiotics were well tolerated. Uncomplicated typhoid fever due to isolates of MDR S. enterica serovar Typhi with reduced susceptibility to fluoroquinolones (Na(r)) can be successfully treated with a 7-day course of azithromycin.

Indexed as

AdolescentAdultAnti-Bacterial AgentsAzithromycinBlood Cell CountChildChild, PreschoolDrug CombinationsDrug Resistance, Multiple, BacterialFemaleHumansMaleMicrobial Sensitivity TestsNalidixic AcidOfloxacinSalmonella entericaAnti-Bacterial AgentsAzithromycinDrug CombinationsNalidixic AcidOfloxacin

Identifiers

PMID17145784
PMCPMC1803150
OpenAlexW2171624472

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.