A group of study participants who receive the standard medicine or treatment for a disease or condition, and are compared to the group that receives the study treatment.
Archives: Glossary Terms
phase 4 (study)
Clinical research, that is done using an approved and available treatment, to collect more information.
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phase 3 (study)
A step in clinical research that includes a large group of participants who have a disease or condition to find out how well a study treatment works and how safe it is, compared to other treatments or a placebo.
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phase 2 (study)
A step in clinical research that gives a study treatment to a small group of participants who have a disease or condition, to look at the study treatment’s safety, and its effect on the disease or condition.
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phase 1 (study)
The first step in clinical research that gives a new study treatment to a very small group of people, to learn about its safety and effects on the body.
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study suspension
A decision to pause a study, made by a group that oversees or is responsible for research.
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clinical hold
A pause to all or parts of a research study ordered by the government agency that oversees research in a country.
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data sharing (research)
Making information collected during a study available for future use.
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abstract (research)
A short summary of an academic article or report.
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antagonistic effect
When one treatment or intervention works against another to reduce or block its effect.
