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Sidy's Intelligence Brief — Asymmetries

WHO African Region Clinical Trials: Health Need and Evidence Capacity Are Not in the Same Place

2026-09-2216 min read

The WHO African Region carries substantial health need, yet clinical-trial activity and research capacity remain far more concentrated elsewhere. WHO recorded 822 newly recruiting registered trials in the African Region in 2025 versus 31,097 in the Western Pacific Region, while its latest research-workforce indicator shows a weighted average of 19 health researchers per million inhabitants in the African Region versus 304 in Europe. The asymmetry is therefore not simply a low trial count. It is an uneven ability to generate, review, execute and learn from clinical evidence where health need is substantial.

Clinical trialsResearch capacityEvidence inequalityHealth systemsAfrica

The Brief in One Sentence

A region can carry major health need without possessing an equally strong system for producing the clinical evidence that shapes which interventions are tested, understood and improved.

Why It Matters

WHO’s African Regional Office describes the African Region as carrying approximately one-fifth of the world’s disease burden with about one-seventh of global population during the 2025–2026 reporting period. Yet WHO’s June 2026 clinical-trial analysis records only 822 newly recruiting registered trials in the African Region in 2025, compared with 31,097 in the Western Pacific Region.

That comparison does not mean the African Region should mechanically host one-fifth of the world’s trials. Disease pipelines differ. Epidemiology differs. Some interventions need specific populations, laboratories or specialist centers. And trial count says nothing by itself about quality.

What the numbers do establish is a large imbalance in where clinical research activity happens. When that sits alongside a major research-workforce gap, the analytical question becomes deeper: who has the capability to turn health questions into locally generated evidence?

Explain It Simply

Imagine two towns have serious health problems. Town A has experienced researchers, laboratories, trial sites, ethics committees, regulators, data systems and hospitals used to research. Town B has patients with important needs but far less of that infrastructure.

A company or research group deciding where to run a study may find Town A much easier to use. Each completed study gives Town A’s teams more experience, stronger systems and more familiarity with sponsors. Town B can remain important medically while falling further behind in the machinery that produces evidence.

The illness creates the question. The research ecosystem often determines where the answer is produced.

Evidence Map

  • Observed / trial activity: WHO reports 822 newly recruiting registered trials in the African Region in 2025 versus 31,097 in the Western Pacific Region — more than thirty times as many in the latter.
  • Observed / health context: WHO’s African Regional Office describes the African Region as carrying roughly one-fifth of global disease burden with about one-seventh of global population in the 2025–2026 reporting period.
  • Observed / research workforce: WHO’s latest regional indicator gives a weighted average of 19 FTE health researchers per million inhabitants in the African Region versus 304 in the European Region, while warning that country reporting is incomplete.
  • Observed / policy diagnosis: WHO’s Global Action Plan for Clinical Trial Ecosystem Strengthening explicitly identifies persistent disparities in trial activity and access and calls for stronger workforce, governance, ethics and regulatory review, health-system integration, transparency and international collaboration.
  • Observed / regional response: AVAREF now works across all 55 African countries and is mapping review timelines, staffing, resources, digital systems and emergency preparedness across regulators and ethics committees.
  • Observed / remaining capacity gap: WHO reported in October 2025 that not all African countries had emergency trial-review and scientific-advice procedures suited to public-health emergencies.
  • Inference: the asymmetry is best understood as unequal evidence-generation capability rather than a simple shortage of study registrations.
  • Uncertain: public regional counts do not tell us whether every trial is locally relevant, high quality, well distributed within countries or aligned with the region’s largest health needs.

The Exact Asymmetry

The imbalance is not ‘Africa has disease while other regions have science.’ African institutions conduct important research, and the continent contains world-class investigators and sites. Nor is the imbalance simply a comparison between two WHO regions.

The narrower asymmetry is this: the capacity to generate clinical evidence is distributed much more unevenly than health need. That capacity includes trained researchers, experienced sites, laboratory and data infrastructure, predictable ethics and regulatory review, sponsor relationships, participant engagement and the ability to integrate research into routine health systems.

Where those layers are weak or fragmented, the region may participate less in the process that determines what evidence exists and how quickly local capability grows.

Trial Count Is a Signal, Not a Score

A trial count cannot tell us whether the studies answer the right questions, protect participants well, recruit representative populations, publish their results or change clinical practice. It also mixes different disease areas and, in ICTRP, includes both interventional and observational studies.

Registration data can also move retrospectively: WHO notes that some trials are registered after enrollment has begun, and historical counts are therefore revised as records arrive.

The useful role of the count is narrower. It shows the volume of registered research activity occurring in different places. When that gap is extremely large and sits beside a major workforce disparity, it is a legitimate signal to investigate the underlying research ecosystem.

Research Capacity Can Compound

This is Sidy’s synthesis from the evidence, not a WHO metric. Clinical-research capability can behave cumulatively. A site that repeatedly runs studies builds investigators, coordinators, data-management routines, laboratory relationships, quality systems and familiarity with oversight. Sponsors and funders also learn what the site can execute reliably.

That creates a plausible reinforcing loop: trial experience → stronger execution capability → lower friction for the next trial → more experience. The reverse can also occur. A location with little activity has fewer opportunities to build the very track record that would make future placement easier.

This does not mean sponsors should place studies simply to build capacity. Scientific relevance, ethics, participant safety and feasibility remain first-order requirements. It means capability has a path-dependent element that policy can ignore at its cost.

The Workforce Gap Sits Under the Trial Gap

WHO’s latest regional indicator gives a weighted average of 19 FTE health researchers per million inhabitants in the African Region and 304 in the European Region — more than a sixteen-fold difference. WHO explicitly warns that the dataset is incomplete, so the comparison should not be read as a census of every researcher.

Even with that limitation, the indicator matters because trials do not run on protocols alone. They require investigators, statisticians, pharmacists, laboratory specialists, research nurses, data managers, monitors, ethics expertise and regulatory science.

A workforce shortage can therefore be both an outcome of low research investment and a mechanism that makes additional research harder to execute.

Regulation and Ethics Are Part of the Research Infrastructure

It is tempting to think of trial capacity as laboratories and hospitals. WHO’s current action plan is broader. It treats governance, regulatory review, ethics review, workforce, community engagement, transparency and integration into health systems as parts of the same ecosystem.

AVAREF’s current continent-wide survey follows the same logic by tracking review timelines, staffing, institutional readiness, digital systems and emergency preparedness across national regulators and ethics committees. WHO also reported in October 2025 that not every African country had emergency review and scientific-advice procedures suited to public-health emergencies.

A trial site can therefore be technically capable while the surrounding approval and oversight system remains too slow, fragmented or under-resourced. Conversely, faster review without strong ethics and quality would not be progress.

Who Bears the Cost of the Imbalance?

Patients and clinicians may have less locally generated evidence about how interventions perform in the populations and health systems where they will be used. Researchers and institutions receive fewer opportunities to build durable trial capability. Governments and regulators can have less domestic experience evaluating novel products and study designs. Sponsors, meanwhile, may face a narrower set of proven sites and therefore keep returning to established research geographies.

None of those consequences is automatic in every disease or country. Multinational trials can transfer knowledge, high-quality evidence can sometimes generalize well across populations, and a small number of excellent trials can be more valuable than a large number of weak ones.

The asymmetry matters when the system repeatedly leaves health need on one side and evidence-generation capability on the other.

What Would Actually Reduce the Gap

The gap will not close by announcing a target number of trials. WHO’s ecosystem approach points toward the harder work: sustained research careers, capable sites and laboratories, faster but rigorous ethics and regulatory review, community engagement, reliable data systems, transparent registration, integration with routine care and long-term collaboration between local and international institutions.

AVAREF’s harmonization and joint-review work is important because it attacks transaction friction across multi-country research. But the durable test is whether capability remains after an individual project ends: trained people, functioning institutions, reusable systems and stronger local scientific leadership.

A region has not fully closed the asymmetry merely because more protocols pass through it. It closes the gap when it can originate, evaluate and execute high-quality research with increasing independence and relevance.

Critical View

There are several ways to misuse this evidence. First, disease burden is not a trial-allocation formula. A region can have high burden from conditions for which few new products are in development, while another region may host many trials because of a large domestic pharmaceutical pipeline. Second, the Western Pacific figure is heavily shaped by large research systems such as China and Japan and should not be treated as a universal benchmark.

Third, more local trials can create risks if governance, participant protection, informed consent, post-trial access or scientific value are weak. Equity is not achieved by moving trials geographically while leaving local institutions with little authority or durable capability.

Finally, some evidence generalizes across populations and settings. The correct objective is not research nationalism. It is a stronger ability for regions with major health needs to participate meaningfully in generating the evidence that affects them.

Sidy’s Synthesis — Need and Evidence Capacity

Health need creates the question; research capacity often determines where the answer is produced.

The most important gap is therefore not the distance between 822 and 31,097 by itself. It is the distance between carrying health problems and possessing the institutional machinery to investigate them repeatedly, ethically and at high quality.

That changes what to monitor. Count trials, but also count investigators, experienced sites, predictable review systems, data capability, locally led protocols and what remains after external funding leaves. The durable asset is not one study. It is the ability to produce the next credible study.

What to Monitor Next

  • WHO ICTRP trial activity by African country and disease area, not only the regional total.
  • Prospective versus retrospective registration and the stability of annual counts.
  • Health-researcher density and country reporting coverage.
  • AVAREF review timelines, staffing, digital readiness and joint-review performance.
  • Share of trials led by African institutions versus sites participating in externally led protocols.
  • Whether trial infrastructure becomes reusable across diseases and sponsors.
  • Evidence on participant representation, result publication and post-trial access.

Reopen This Thesis If

  • WHO materially revises the 2025 African Region trial count or changes the ICTRP method enough to break comparability.
  • Regional trial activity converges materially after adjustment for disease area, population and relevant product pipelines.
  • New workforce data show the observed research-capacity disparity narrowing sharply.
  • AVAREF or another authoritative source shows regulatory and ethics capacity constraints have been broadly resolved.
  • Strong evidence shows that local trial activity does not contribute to durable research capability or locally relevant evidence.

Remember This

Do not confuse health need with evidence capacity. A region can need answers urgently while lacking the institutions that make those answers easier to produce. Closing that gap requires more than importing studies; it requires building the ability to generate the next trustworthy study locally.

Primary sources

Facts, figures and quotations should be traceable to the sources below. Sidy's synthesis is labeled as synthesis and does not replace sourced facts.

  1. https://www.who.int/observatories/global-observatory-on-health-research-and-development/monitoring/number-of-clinical-trials-by-year-country-who-region-and-income-group/
  2. https://www.afro.who.int/about-us/regional-director/annual-report-2025/landscape
  3. https://www.who.int/observatories/global-observatory-on-health-research-and-development/indicators/health-researchers-in-full-time-equivalent-per-million-inhabitants-by-who-region-first-set-of-charts
  4. https://www.who.int/news/item/08-05-2025-who-releases-global-action-plan-to-strengthen-clinical-trial-ecosystems
  5. https://www.who.int/our-work/science-division/research-for-health/implementation-of-the-resolution-on-clinical-trials/guidance-for-best-practices-for-clinical-trials
  6. https://avaref.afro.who.int/ecosystem/
  7. https://afro.who.int/news/cepi-partners-avaref-boost-clinical-trial-application-reviews-africa-0