Sponsor
The organization or person who initiates the study and who has authority and control over the study.
Source: ClinicalTrials.gov
Glossary of Terms
Single-blind study
Side effect
A problem that occurs when treatment affects healthy tissues or organs.
Source: NCI
Selection Bias
An error in choosing the individuals or groups to take part in a study. Ideally, the subjects in a...
Retrospective study
A study that compares two groups of people: those with the disease or condition under study (cases) and a...
Retrospective cohort study
A research study in which the past medical records of groups of individuals who are alike in many ways...
Retrospective
Looking back at events that have already taken place.
Source: NCI
Research Study
A scientific study of nature that sometimes includes processes involved in health and disease. For example, clinical trials are...
Randomized Controlled Trial
A study in which participates are divided by chance into separate groups that compare treatments or other interventions. Using...
Randomization
When referring to an experiment or clinical trial, the process by which animal or human subjects are assigned by...
Race
Principal Investigator (PI)
The person who is responsible for the scientific and technical direction of the entire clinical study.
Source: ClinicalTrials.gov