Clinical efficacy of 3 days versus 5 days of oral amoxicillin for treatment of childhood pneumonia: a multicentre double-blind trial. Three day versus five day treatment with amoxicillin for non-severe pneumonia in young children: a multicentre randomised controlled trial.
For most infections, especially acute respiratory infections (ARIs), the recommended duration of therapy is not based on strong scientific or clinical criteria. Shorter courses of antibiotics for non-severe pneumonia would result in lower costs, enhance patient compliance, and might help to contain antimicrobial resistance. We aimed to compare the clinical efficacy of 3-day and 5-day courses of amoxicillin in children with non-severe pneumonia.
                We recruited 2000 children, aged 2-59 months, with non-severe pneumonia (WHO criteria) diagnosed in the outpatient departments of seven hospitals. Patients were randomly assigned to 3 days or 5 days of treatment with oral amoxicillin. The primary outcome was treatment failure. Analyses were by intention to treat.
                We allocated 1000 children to 3 days of treatment and 1000 to 5 days. Treatment failed in 209 (21%) patients in the 3-day group, and in 202 (20%) in the 5-day group (difference 0.7%; 95% CI -1.8 to 3.2). In 12 (1%) children in the 3-day group and in 13 (1%) in the 5-day group the disease relapsed (difference 0.1%; -0.6 to 0.8). Treatment was more likely to fail in children who did not adhere to treatment (p<0.0001), in those younger than 12 months (p<0.0001), in those whose illness lasted for 3 days or longer (p=0.004), in those whose respiratory rate was more than 10 breaths/min above the age-specific cut-off (p=0.004), and in those with vomiting (p=0.009). Non-adherence was also associated with failure of treatment in the 5-day group (p<0.0001).
                Treatment with oral amoxicillin for 3-days was equally as effective as treatment for 5 days in children with non-severe pneumonia. The most important risk factor for treatment failure was non-compliance, which was also associated with longer duration of therapy. To assess the efficacy of three days versus five days of treatment with oral amoxicillin for curing non-severe pneumonia in children.
                Randomised, double blind, placebo controlled multicentre trial.
                Outpatient departments of seven referral hospitals in India.
                2188 children aged 2-59 months, 1095 given three days of treatment and 1093 given five days.
                Oral amoxicillin 31-54 mg/kg/day in three divided doses.
                Treatment failure: defined as development of chest indrawing, convulsions, drowsiness, or inability to drink at any time; respiratory rate above age specific cut points on day 3 or later; or oxygen saturation by pulse oximetry < 90% on day 3.
                The clinical cure rates with three days and five days of treatment were 89.5% and 89.9%, respectively (absolute difference 0.4 (95% confidence interval--2.1 to 3.0)). Adherence to treatment regimen was 94% and 85% for three day and five day treatments, respectively. Loss to follow up was 5.4% by day 5. There were no deaths, 41 hospitalisations, and 36 minor adverse reactions. There were 225 (10.3%) clinical failures and 106 (5.3%) relapses, and rates were similar in both treatments. At enrollment, 513 (23.4%) children tested positive for respiratory syncytial virus, and Streptococcus pneumoniae and Haemophilus influenzae were isolated from the nasopharynx in 878 (40.4%) and 496 (22.8%) children, respectively. Clinical failure was associated with isolation of respiratory syncytial virus (adjusted odds ratio 1.95 (95% confidence interval 1.0 to 3.8)), excess respiratory rate of > 10 breaths/minute (2.89 (1.83 to 4.55)), and non-adherence with treatment at day 5 (11.57 (7.4 to 18.0)).
                Treatment with oral amoxicillin for three days was as effective as for five days in children with non-severe pneumonia.
The evidence of this review suggests that a short course (three days) of antibiotic therapy is as effective as a longer treatment (five days) for non-severe CAP in children under five years of age. However, there is a need for more well-designed RCTs to support our review findings.