Related Experiment Video
Updated: Feb 17, 2026

A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition
Published on: September 20, 2019
Comparative evidence on harms in pediatric randomized clinical trials from less developed versus more developed
Dario Tedesco1, Mufiza Farid-Kapadia2, Martin Offringa2
1Department of Biomedical and Neuromotor Sciences, University of Bologna, Via San Giacomo, 12, 40126, Bologna, Italy.
Insights
Harm rates in pediatric clinical trials show no significant differences between more developed and less developed countries. However, overall data on harms in children remains very limited, indicating a need for more research.
Area of Science:
- Pediatric clinical research
- Global health equity
- Medical intervention safety
Background:
- Assessing comparative harm rates in pediatric randomized clinical trials (RCTs) between more developed countries (MDCs) and less developed countries (LDCs) is crucial for global health equity.
- Existing data on adverse events in pediatric populations across different economic settings is limited.
Purpose of the Study:
- To evaluate and compare the rates of clinically important harm outcomes in pediatric RCTs conducted in MDCs versus LDCs.
- To identify any systematic differences in harm reporting between these settings.
Main Methods:
- A meta-epidemiologic evaluation of systematic reviews from the Cochrane Database (up to June 2014) was performed.
- Meta-analyses including pediatric RCTs from both MDCs and LDCs reporting severe adverse events (AEs), discontinuations due to AEs, any AE, and mortality were analyzed.
- Relative odds ratios (RORs) and summary RORs (sRORs) were calculated to compare harm rates between the two country groups.
Main Results:
- Only 1% of relevant meta-analyses included pediatric RCTs from both MDCs and LDCs.
- Analysis of 26 meta-analyses revealed no major systematic differences in harm rates: sROR for severe AEs was 0.92, for discontinuations 1.13, for any AE 1.10, and for mortality 0.99.
- Significant differences (≥2-fold) in ROR point-estimates were observed in 35% of the meta-analyses.
Conclusions:
- No significant systematic differences in harm rates were found in pediatric trials between MDCs and LDCs.
- The study highlights a substantial limitation in the available data concerning harms in pediatric populations globally.
- Further research is needed to comprehensively understand and address potential disparities in pediatric medical intervention safety.
Objectives:
Evaluate comparative harm rates from medical interventions in pediatric randomized clinical trials (RCTs) from more developed (MDCs) and less developed countries (LDCs).
Study Design And Setting:
Meta-epidemiologic empirical evaluation of Cochrane Database of Systematic Reviews (June 2014) meta-analyses reporting clinically important harm-outcomes (severe adverse events [AEs], discontinuations due to AEs, any AE, and mortality) that included at least one pediatric RCT from MDCs and at least one from LDCs. We estimated relative odds ratios (RORs) for each harm, within each meta-analysis, between RCTs from MDCs and LDCs and calculated random-effects-summary-RORs (sRORs) for each harm across multiple meta-analyses.
Results:
Only 1% (26/2,363) of meta-analyses with clinically important harm-outcomes in the entire Cochrane Database of Systematic Reviews included pediatric RCTs both from MDCs and LDCs. We analyzed 26 meta-analyses with 244 data sets from pediatric RCTs, 116 from MDCs and 128 from LDCs (64 and 66 unique RCTs respectively). The summary ROR was 0.92 (95% confidence intervals: 0.78-1.08) for severe AEs; 1.13 (0.54-2.34) for discontinuations due to AEs; 1.10 (0.77-1.59) for any AE; and 0.99 (0.61-1.61) for mortality and for the all-harms-combined-end point 0.96 (0.83-1.10). Differences of ROR-point-estimates ≥2-fold between MDCs and LDCs were identified in 35% of meta-analyses.
Conclusion:
We found no major systematic differences in harm rates in pediatric trials between MDCs and LDCs, but data on harms in children were overall very limited.
Related Concept Videos
Hazard Ratio
For example, in a clinical trial...
Clinical Trials
There are four phases in a clinical trial. A phase one...
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
Pharmacokinetics in Pediatric Patients: Drug Metabolism
Pharmacokinetics in Pediatric Patients: Drug Distribution
Pharmacokinetics in Pediatric Patients: Drug Excretion

