Health economic evaluations alongside trials are critical for resource-limited A...
Africa Trials
160
US Trials
5,152
Gap Ratio
32x
Nations
54
Key Finding
Africa hosts 23,873 trials across 54 nations with extreme geographic concentration.
Regional Comparison
Distribution Analysis
Inequality Profile
Temporal & Structural
Why It Matters
Health economic evaluations alongside trials are critical for resource-limited African health systems making allocation decisions, yet cost-effectiveness data from African trials remains scarce.
The Evidence 132 words · target 156
In the methodological architecture of African clinical research, does the pattern of health economic evaluation reveal structural inequity in African research investment? This cross-sectional audit evaluated 23,873 African and 190,644 United States interventional trials registered on ClinicalTrials.gov through April 2026. Investigators computed the rate ratio comparing Africa to other regions as the primary estimand using registry metadata for each nation. Africa registered 160 relevant trials compared to 5,152 in the United States, revealing an 32-fold absolute gap in research volume. Temporal analysis showed 17.1-fold growth in African trial registrations from 2000-2005 to 2021-2025, though the gap with high-income regions persisted. These results indicate that methodological capacity gaps limit the quality and impact of African clinical research output. Interpretation is limited by reliance on ClinicalTrials.gov alone, which may undercount locally registered African studies.
Sentence Structure
Question
In the methodological architecture of African clinical research, does the pattern of health economic evaluation reveal structural inequity in African research investment?
Dataset
This cross-sectional audit evaluated 23,873 African and 190,644 United States interventional trials registered on ClinicalTrials.
Method
gov through April 2026.
Primary Result
Investigators computed the rate ratio comparing Africa to other regions as the primary estimand using registry metadata for each nation.
Robustness
Africa registered 160 relevant trials compared to 5,152 in the United States, revealing an 32-fold absolute gap in research volume.
Interpretation
Temporal analysis showed 17.
Boundary
1-fold growth in African trial registrations from 2000-2005 to 2021-2025, though the gap with high-income regions persisted.
Extra
These results indicate that methodological capacity gaps limit the quality and impact of African clinical research output.
Extra
Interpretation is limited by reliance on ClinicalTrials.
Extra
gov alone, which may undercount locally registered African studies.