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A randomised controlled trial of rectal versus oral acetaminophen antipyresis in children
ISRCTN ISRCTN11886401
ClinicalTrials.gov identifier
Public title A randomised controlled trial of rectal versus oral acetaminophen antipyresis in children
Scientific title
Acronym N/A
Serial number at source N/A
Study hypothesis This randomised, double-dummy and placebo controlled study was conducted to compare the antipyretic efficacies of two different rectal doses of acetaminophen: 15 mg/kg and 35 mg/kg to that of a standard oral dose of 15 mg/kg, over a six-hour period, to allow detection of late antipyresis that may occur with rectal acetaminophen. The results of this study will provide further evidence on the comparative antipyretic efficacy of different doses of rectal acetaminophen versus the standard oral one.

Our study hypothesis was that a single dose of 15 mg/kg oral acetaminophen is more effective than either 15 mg/kg or 35 mg/kg rectal acetaminophen, in reducing the temperature of febrile children.
Lay summary
Ethics approval The Institutional Review Board and the Ethics Committee at the American University of Beirut, as well as the Board of the Middle East Hospital, approved this study.
Study design Randomised controlled trial
Countries of recruitment Lebanon
Disease/condition/study domain Fever
Participants - inclusion criteria 1. Age between 6 months and 13 years
2. Rectal temperature greater than or equal to 38.5 °C
3. Consent of treating physician
4. Written consent of parent and oral consent of child if older than 10 years
5. No antipyretic intake for 8 hours prior to enrolment
Participants - exclusion criteria 1. Presence of concurrent or previous hepatic disease
2. Chronic and/or serious disease such as malignancy, septic shock, malabsorption syndromes etc.
3. Any condition interfering with the absorption of oral or rectal acetaminophen such as vomiting or severe diarrhoea, ileus, rectal bleeding etc.
4. Hypersensitivity to acetaminophen
Anticipated start date 01/11/2000
Anticipated end date 30/09/2002
Status of trial Completed
Patient information material
Target number of participants 48
Interventions Group 1: A single dose of oral acetaminophen (15 mg/kg) plus placebo rectal suppository (size equivalent to a 35 mg/kg rectal acetaminophen suppository)
Group 2: A single dose of oral placebo (equivalent to a 15 mg/kg oral acetaminophen) plus a rectal suppository containing 15 mg/kg acetaminophen and 20 mg/kg placebo.
Group 3: A single dose of oral placebo as in group 2 plus a rectal suppository of 35 mg/kg acetaminophen.

Rectal temperature readings at baseline and hourly for a total of 6 hours.
Primary outcome measure(s) Time to maximum antipyresis following administration of a single dose of acetaminophen.
Secondary outcome measure(s) Secondary outcomes included the temperatures at one, two, three, four, five, and six hours from administration and possible side effects such as hypothermia.
Sources of funding American University of Beirut (Lebanon) - Medical Practice Plan of the Faculty of Medicine (grant ref: AUB A/C 686056)
Trial website
Publications Results in http://www.ncbi.nlm.nih.gov/sites/entrez?Db=pubmed&Cmd=ShowDetailView&TermToSearch=16143048
Contact name Dr  Mona  Nabulsi
  Address American University of Beirut Medical Center
  City/town Beirut
  Zip/Postcode 113-6044/C8
  Country Lebanon
  Tel +961 (0)3 628528
  Fax +961 (0)1 744464
  Email mn04@aub.edu.lb
Sponsor American University of Beirut (Lebanon)
  Address Faculty of Medicine, Medical Practice Plan
Riyad El-Solh
  City/town Beirut
  Zip/Postcode 11-02-36
  Country Lebanon
  Tel +961 (0)1 350000
  Fax +961 (0)1 744464
  Email resdean@aub.edu.lb
  Sponsor website: http://www.aub.edu.lb/
Date applied 04/03/2005
Last edited 20/12/2007
Date ISRCTN assigned 10/03/2005
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