Globalization of clinical trials: participation, development and future directions

Luis G Medina1,2, Curtis Pettaway2,3, Philippe E Spiess2,4

  • 1Medical University of South Carolina, Hollings Cancer Center, Department of Urology. Charleston, South Carolina.

Abstract

Insights

Global clinical trial participation is unequal, with developing nations underrepresented despite high disease burdens. Addressing these disparities requires understanding barriers and developing infrastructure to improve global health equity.

Area of Science:

  • Clinical Research
  • Global Health Equity
  • Evidence-Based Medicine

Background:

  • Clinical trials are essential for evidence-based medicine, governed by regulations for ethical conduct and scientific rigor.
  • Current clinical trials often fail to represent diverse global patient populations, particularly in developing nations.
  • Developing countries frequently lack the necessary infrastructure, funding, and regulatory resources for robust clinical research, leaving prevalent diseases understudied.

Purpose of the Study:

  • To examine the disparities in global clinical trial participation.
  • To identify barriers contributing to the underrepresentation of developing nations in clinical research.
  • To explore strategies for improving global clinical trial equity.

Main Methods:

  • Review of existing literature on global clinical trial participation and disparities.
  • Analysis of funding allocation in clinical research concerning developed versus developing nations.
  • Identification of regulatory, infrastructural, and cultural factors affecting trial conduct in diverse settings.

Main Results:

  • Global participation in clinical trials is highly unequal, with significant underrepresentation from developing nations.
  • Funding for clinical trials does not align with the global disease burden, with most resources allocated to developed countries.
  • Key barriers include stringent sponsor requirements, inadequate regulatory infrastructure, limited research training, and cultural/systemic factors.

Conclusions:

  • Addressing global trial disparities necessitates understanding socioeconomic and cultural barriers.
  • Streamlining guidelines can reduce operational obstacles without compromising scientific quality.
  • Long-term strategies involving governments and industry are crucial for developing research infrastructure and training programs.

Related Concept Videos

Clinical Trials: Overview01:11

Clinical Trials: Overview

Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
Clinical Trials01:16

Clinical Trials

Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
There are four phases in a clinical trial. A phase one...
Preclinical Development: Overview01:28

Preclinical Development: Overview

Preclinical development consists of a series of tests that ensure the safety and efficacy of a new therapeutic compound before it is tested in humans. There are four main phases to this process. First, safety pharmacology tests are conducted to ensure the drug does not produce any acutely harmful effects. These tests examine parameters such as bronchoconstriction, cardiac dysrhythmias, blood pressure changes, and ataxia. Next, preliminary toxicological testing is performed to determine the...
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches01:23

Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches

Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast, controlled...
Bioavailability Study Design: Healthy Subjects Versus Patients01:15

Bioavailability Study Design: Healthy Subjects Versus Patients

Bioavailability studies are essential for evaluating a drug's therapeutic efficacy and understanding its absorption patterns under various physiological conditions. Conducting such studies on target patient populations provides more relevant data by simulating real-world disease states. However, practical challenges often necessitate the use of young, healthy adult volunteers as study subjects.Patients may exhibit altered drug absorption patterns due to the effects of the disease itself,...
Pharmacogenomics: Identification of New Drug Targets01:29

Pharmacogenomics: Identification of New Drug Targets

Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...