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Oral Disintegrating Ondansetron Tablet to Reduce Vomiting From Gastroenteritis in a Pediatric Emergency Department

Information source: The Hospital for Sick Children
Information obtained from ClinicalTrials.gov on June 20, 2008
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Gastroenteritis; Vomiting; Diarrhea; Dehydration

Intervention: Ondansetron Oral Disintegrating Tablet (Drug)

Phase: N/A

Status: Active, not recruiting

Sponsored by: The Hospital for Sick Children

Official(s) and/or principal investigator(s):
Stephen B Freedman, MDCM, MSCI, Principal Investigator, Affiliation: The Hospital for Sick Children


The objectives of the study were to determine whether ondansetron treatment would reduce:

- the amount of vomiting in the emergency department;

- the need for intravenous rehydration; and

- the need for hospitalization.

Clinical Details

Official title: Randomized Trial of the Oral Disintegrating Ondansetron Tablet to Reduce Vomiting From Acute Gastroenteritis in a Pediatric Emergency Department

Study design: Prevention, Randomized, Double-Blind, Placebo Control, Parallel Assignment, Safety/Efficacy Study

Primary outcome: The proportion of children who vomit during oral rehydration therapy after receiving either 0.13-0.27 mg per kilogram of an oral disintegrating ondansetron tablet or placebo.

Secondary outcome: To compare in each treatment arm: mean number of episodes of vomiting, the proportion of children administered supplemental intravenous rehydration or requiring hospitalization.

Detailed description: Background:

Vomiting may limit the success of oral rehydration in children with gastroenteritis and dehydration. Limited data suggest that while oral ondansetron may reduce vomiting from gastroenteritis, emergency department revisits may increase.


The investigators conducted a prospective, double-blind randomized trial at a pediatric emergency department in 214 dehydrated children, aged 6 months to 10 years with gastroenteritis and mild to moderate dehydration as assessed by a dehydration score. They were randomly assigned to receive treatment with an ondansetron oral disintegrating tablet or placebo. Oral rehydration was administered according to a standard protocol. The primary outcome was the proportion of children who vomited during oral rehydration therapy. The secondary outcomes were the mean number of episodes of vomiting, and the proportion of children treated with intravenous rehydration or hospitalized.


Minimum age: 6 Months. Maximum age: 10 Years. Gender(s): Both.


Inclusion Criteria:

- Acute gastroenteritis

- Non-bilious and non-bloody vomiting within 4 hours of triage

- Diarrhea

- Mild to moderate dehydration

Exclusion Criteria:

- Weight less than 8 kilograms

- Severe dehydration

- Underlying disease which might affect the assessment of hydration status (e. g.,

chronic renal failure, hypoalbuminemia, congestive heart failure, on diuretics)

- History of abdominal surgery

- Hypersensitivity to the drug or any components in its formulation

Locations and Contacts

Additional Information

Starting date: January 2004
Ending date: April 2005
Last updated: September 7, 2006

Page last updated: June 20, 2008

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