Co-trimoxazole versus azithromycin for the treatment of undifferentiated febrile illness in Nepal: study protocol for a randomized controlled trial

Abstract Background Undifferentiated febrile illness (UFI) includes typhoid and typhus fevers and generally designates fever without any localizing signs. UFI is a great therapeutic challenge in countries like Nepal because of the lack of available point-of-care, rapid diagnostic tests. Often patien...

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Main Authors: Sunil Pokharel, Buddha Basnyat, Amit Arjyal, Saruna Pathak Mahat, Raj Kumar KC, Abhusani Bhuju, Buddhi Poudyal, Evelyne Kestelyn, Ritu Shrestha, Dung Nguyen Thi Phuong, Rajkumar Thapa, Manan Karki, Sabina Dongol, Abhilasha Karkey, Marcel Wolbers, Stephen Baker, Guy Thwaites
Format: Article
Language:English
Published: BMC 2017-10-01
Series:Trials
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13063-017-2199-6
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author Sunil Pokharel
Buddha Basnyat
Amit Arjyal
Saruna Pathak Mahat
Raj Kumar KC
Abhusani Bhuju
Buddhi Poudyal
Evelyne Kestelyn
Ritu Shrestha
Dung Nguyen Thi Phuong
Rajkumar Thapa
Manan Karki
Sabina Dongol
Abhilasha Karkey
Marcel Wolbers
Stephen Baker
Guy Thwaites
author_facet Sunil Pokharel
Buddha Basnyat
Amit Arjyal
Saruna Pathak Mahat
Raj Kumar KC
Abhusani Bhuju
Buddhi Poudyal
Evelyne Kestelyn
Ritu Shrestha
Dung Nguyen Thi Phuong
Rajkumar Thapa
Manan Karki
Sabina Dongol
Abhilasha Karkey
Marcel Wolbers
Stephen Baker
Guy Thwaites
author_sort Sunil Pokharel
collection DOAJ
description Abstract Background Undifferentiated febrile illness (UFI) includes typhoid and typhus fevers and generally designates fever without any localizing signs. UFI is a great therapeutic challenge in countries like Nepal because of the lack of available point-of-care, rapid diagnostic tests. Often patients are empirically treated as presumed enteric fever. Due to the development of high-level resistance to traditionally used fluoroquinolones against enteric fever, azithromycin is now commonly used to treat enteric fever/UFI. The re-emergence of susceptibility of Salmonella typhi to co-trimoxazole makes it a promising oral treatment for UFIs in general. We present a protocol of a randomized controlled trial of azithromycin versus co-trimoxazole for the treatment of UFI. Methods/design This is a parallel-group, double-blind, 1:1, randomized controlled trial of co-trimoxazole versus azithromycin for the treatment of UFI in Nepal. Participants will be patients aged 2 to 65 years, presenting with fever without clear focus for at least 4 days, complying with other study criteria and willing to provide written informed consent. Patients will be randomized either to azithromycin 20 mg/kg/day (maximum 1000 mg/day) in a single daily dose and an identical placebo or co-trimoxazole 60 mg/kg/day (maximum 3000 mg/day) in two divided doses for 7 days. Patients will be followed up with twice-daily telephone calls for 7 days or for at least 48 h after they become afebrile, whichever is later; by home visits on days 2 and 4 of treatment; and by hospital visits on days 7, 14, 28 and 63. The endpoints will be fever clearance time, treatment failure, time to treatment failure, and adverse events. The estimated sample size is 330. The primary analysis population will be all the randomized population and subanalysis will be repeated on patients with blood culture-confirmed enteric fever and culture-negative patients. Discussion Both azithromycin and co-trimoxazole are available in Nepal and are extensively used in the treatment of UFI. Therefore, it is important to know the better orally administered antimicrobial to treat enteric fever and other UFIs especially against the background of fluoroquinolone-resistant enteric fever. Trial registration ClinicalTrials.gov, ID: NCT02773407 . Registered on 5 May 2016.
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spelling doaj.art-d9080f16f7bd4b21b16c85d0e53237062022-12-22T02:57:51ZengBMCTrials1745-62152017-10-0118111310.1186/s13063-017-2199-6Co-trimoxazole versus azithromycin for the treatment of undifferentiated febrile illness in Nepal: study protocol for a randomized controlled trialSunil Pokharel0Buddha Basnyat1Amit Arjyal2Saruna Pathak Mahat3Raj Kumar KC4Abhusani Bhuju5Buddhi Poudyal6Evelyne Kestelyn7Ritu Shrestha8Dung Nguyen Thi Phuong9Rajkumar Thapa10Manan Karki11Sabina Dongol12Abhilasha Karkey13Marcel Wolbers14Stephen Baker15Guy Thwaites16Oxford University Clinical Research Unit Nepal, Patan Academy of Health SciencesOxford University Clinical Research Unit Nepal, Patan Academy of Health SciencesOxford University Clinical Research Unit Nepal, Patan Academy of Health SciencesOxford University Clinical Research Unit Nepal, Patan Academy of Health SciencesOxford University Clinical Research Unit Nepal, Patan Academy of Health SciencesOxford University Clinical Research Unit Nepal, Patan Academy of Health SciencesPatan Hospital, Patan Academy of Health SciencesCentre for Tropical Medicine and Global Health, University of OxfordOxford University Clinical Research Unit Nepal, Patan Academy of Health SciencesOxford University Clinical Research UnitPatan Hospital, Patan Academy of Health SciencesOxford University Clinical Research Unit Nepal, Patan Academy of Health SciencesOxford University Clinical Research Unit Nepal, Patan Academy of Health SciencesOxford University Clinical Research Unit Nepal, Patan Academy of Health SciencesCentre for Tropical Medicine and Global Health, University of OxfordCentre for Tropical Medicine and Global Health, University of OxfordCentre for Tropical Medicine and Global Health, University of OxfordAbstract Background Undifferentiated febrile illness (UFI) includes typhoid and typhus fevers and generally designates fever without any localizing signs. UFI is a great therapeutic challenge in countries like Nepal because of the lack of available point-of-care, rapid diagnostic tests. Often patients are empirically treated as presumed enteric fever. Due to the development of high-level resistance to traditionally used fluoroquinolones against enteric fever, azithromycin is now commonly used to treat enteric fever/UFI. The re-emergence of susceptibility of Salmonella typhi to co-trimoxazole makes it a promising oral treatment for UFIs in general. We present a protocol of a randomized controlled trial of azithromycin versus co-trimoxazole for the treatment of UFI. Methods/design This is a parallel-group, double-blind, 1:1, randomized controlled trial of co-trimoxazole versus azithromycin for the treatment of UFI in Nepal. Participants will be patients aged 2 to 65 years, presenting with fever without clear focus for at least 4 days, complying with other study criteria and willing to provide written informed consent. Patients will be randomized either to azithromycin 20 mg/kg/day (maximum 1000 mg/day) in a single daily dose and an identical placebo or co-trimoxazole 60 mg/kg/day (maximum 3000 mg/day) in two divided doses for 7 days. Patients will be followed up with twice-daily telephone calls for 7 days or for at least 48 h after they become afebrile, whichever is later; by home visits on days 2 and 4 of treatment; and by hospital visits on days 7, 14, 28 and 63. The endpoints will be fever clearance time, treatment failure, time to treatment failure, and adverse events. The estimated sample size is 330. The primary analysis population will be all the randomized population and subanalysis will be repeated on patients with blood culture-confirmed enteric fever and culture-negative patients. Discussion Both azithromycin and co-trimoxazole are available in Nepal and are extensively used in the treatment of UFI. Therefore, it is important to know the better orally administered antimicrobial to treat enteric fever and other UFIs especially against the background of fluoroquinolone-resistant enteric fever. Trial registration ClinicalTrials.gov, ID: NCT02773407 . Registered on 5 May 2016.http://link.springer.com/article/10.1186/s13063-017-2199-6Undifferentiated febrile illnessEnteric feverAzithromycinCo-trimoxazoleFever clearance time
spellingShingle Sunil Pokharel
Buddha Basnyat
Amit Arjyal
Saruna Pathak Mahat
Raj Kumar KC
Abhusani Bhuju
Buddhi Poudyal
Evelyne Kestelyn
Ritu Shrestha
Dung Nguyen Thi Phuong
Rajkumar Thapa
Manan Karki
Sabina Dongol
Abhilasha Karkey
Marcel Wolbers
Stephen Baker
Guy Thwaites
Co-trimoxazole versus azithromycin for the treatment of undifferentiated febrile illness in Nepal: study protocol for a randomized controlled trial
Trials
Undifferentiated febrile illness
Enteric fever
Azithromycin
Co-trimoxazole
Fever clearance time
title Co-trimoxazole versus azithromycin for the treatment of undifferentiated febrile illness in Nepal: study protocol for a randomized controlled trial
title_full Co-trimoxazole versus azithromycin for the treatment of undifferentiated febrile illness in Nepal: study protocol for a randomized controlled trial
title_fullStr Co-trimoxazole versus azithromycin for the treatment of undifferentiated febrile illness in Nepal: study protocol for a randomized controlled trial
title_full_unstemmed Co-trimoxazole versus azithromycin for the treatment of undifferentiated febrile illness in Nepal: study protocol for a randomized controlled trial
title_short Co-trimoxazole versus azithromycin for the treatment of undifferentiated febrile illness in Nepal: study protocol for a randomized controlled trial
title_sort co trimoxazole versus azithromycin for the treatment of undifferentiated febrile illness in nepal study protocol for a randomized controlled trial
topic Undifferentiated febrile illness
Enteric fever
Azithromycin
Co-trimoxazole
Fever clearance time
url http://link.springer.com/article/10.1186/s13063-017-2199-6
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