Oct 7, 2025 · Clinical trials are a type of research that studies new tests and treatments and evaluates their effects on human health outcomes.

Jan 16, 2020 · A clinical trials registry is the entity that houses the register, and is responsible for ensuring the completeness and accuracy of the information it contains, and that the registered …

Studies can be searched by status, condition or disease, country, or by other terms. The database is continually updated; it currently lists over 300,000 research studies located in all 50 states in the …

What is a clinical trial? For the purposes of registration, a clinical trial is any research study that prospectively assigns human participants or groups of humans to one or more health-related …

This section provides an overview of the key considerations for the conduct of pregnancy safety studies and a list of materials and resources used in clinical trials and observational studies involving …

The number of trials listed in the WHO International Clinical Trials Registry Platform is reported by year, country, WHO region and income group

Clinical evaluation is a critical step to support the approval of vaccines. Given the limitations of animal models, clinical studies to demonstrate the safety and efficacy of vaccines must be conducted in …

Clinical trials in children The mission of the WHO International Clinical Trials Registry Platform is to ensure that a complete view of research is accessible to all those involved in health care decision …

ICTRP Search Portal The ICTRP Search Portal aims to provide a single point of access to information about ongoing and completed clinical trials. It provides a searchable database containing the trial …

Figure 1: Number of registered studies in the ICTRP database by year. Each new update may lead to an update in a number of years because of retrospective registration.