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The primary objective is to determine if the administration of a single dose of oral ondansetron (an anti-vomiting medication), compared to placebo, results in a reduction in intravenous (IV) rehydration therapy in children presenting for emergency department care with some dehydration, vomiting and diarrhea in Pakistan.
SOME Dehydration is defined as 2 or more of the following signs and symptoms:
Full description
Gastroenteritis remains one of the most common causes of morbidity and mortality in children <5 years of age worldwide. A critical factor in the reduction in mortality over the past 30 years has been the introduction of oral rehydration therapy (ORT) for the treatment of dehydration.
However, its use has stagnated in many low- and middle-income countries (LMIC) where many children lack access to alternatives such as intravenous (IV) rehydration. When such children have fluid losses that cannot be replaced orally due to intractable vomiting, death is common. Finding a safe, non-invasive, and effective strategy to reduce vomiting in children would substantially decrease the need for IV rehydration and hence morbidity and mortality in LMICs. Although antiemetic agents are included in the WHO list of Essential Medicines, their use in children with gastroenteritis is not endorsed by the World Health Organization (WHO). Concerns include a lack of evidence that antiemetic agents can improve outcomes and that they are associated with dangerous side effects. However, in high-income settings, studies on ondansetron, an antiemetic agent, have demonstrated that it can reduce vomiting, IV rehydration, and hospitalization. Recent reviews by prominent organizations (e.g. International child Health Review Collaboration; the Committee on the Selection and Use of Essential Medicines) have indicated an interest in ondansetron use in children with gastroenteritis, and they have concluded that further evidence is required. This trial aims to determine if the administration of a single dose of oral ondansetron results in improved outcomes in children brought for emergency department care with vomiting and diarrhea in Pakistan.
Two trials will be conducted under the umbrella of one study. The proposed trials will be identical with the exception of the severity of dehydration at enrollment (either "some" or none "well"). The trials will have the following specific aims:
IV rehydration is a powerful marker of treatment failure and reducing the need for IV rehydration therapy in either of these 2 groups of children will be viewed as a significant advance by healthcare providers and decision makers. Previous studies of ondansetron have not been conducted in low and middle income countries (LMIC), have been of relatively small sample sizes, have not employed WHO dehydration scales, and have not focused on young children (i.e. <5 years). These will be the first pediatric randomized, double-blind trials, in a LMIC, defining the impact of oral ondansetron administration in children with AGE on the need for IV rehydration. As such therapy is unavailable to a large number of children in LMIC countries, the ability to demonstrate that ondansetron can reduce the use of IV rehydration will provide compelling evidence that this drug has the potential to save lives around the world. We postulate that oral ondansetron administration to children in LMIC, if beneficial in our study population, could serve as a feasible and reliable intervention that is available for provision by non-hospital based, outreach, and healthcare providers in remote regions of the world.
This study may have immediate impact on patient management. Based on the results, it will be discovered if oral ondansetron plays a role in reducing the need for intravenous rehydration in children with gastroenteritis in Pakistan. As ondansetron is now available in generic formulations, and is relatively inexpensive, it is anticipated that if this study is positive, ondansetron will be considered for inclusion in the WHO - gastroenteritis care package. This could ultimately lead to a decrease in the need for intravenous rehydration in children in countries such as Pakistan.
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Inclusion criteria
Age 6 - 59 months (0.5 - 5 years)
Symptoms consistent with gastroenteritis (must have a & b)
In fact, of the 8 RCTs performed using antiemetics in children with gastroenteritis in developed countries, only 1 even required the presence of any diarrhea as part of the eligibility criteria (and that study required a single diarrheal stool).
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918 participants in 2 patient groups, including a placebo group
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Data sourced from clinicaltrials.gov
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