Phase I trial
Phase I trial
Phase I trial (pronunciation: /feɪz wʌn traɪəl/) is the first step in testing a new treatment in humans. These studies test the best way to give a new treatment (for example, by mouth, intravenous infusion, or injection) and the best dose. The dose is usually increased a little at a time in order to find the highest dose that does not cause harmful side effects.
Etymology
The term "Phase I trial" originates from the field of clinical research, where different phases of trials are conducted to test the safety, dosage, and efficacy of new drugs or treatments. The term "Phase I" signifies the first stage in this process.
Related Terms
- Clinical trial: A research study that tests how well new medical approaches work in people.
- Phase II trial: A second-phase clinical trial that assesses the effectiveness of a new treatment or drug, and further evaluates its safety.
- Phase III trial: A third-phase clinical trial that compares a new treatment or drug to the current standard treatment or drug.
- Placebo: A substance that has no therapeutic effect, used as a control in testing new drugs.
- Randomized controlled trial: A type of scientific experiment that aims to reduce bias when testing a new treatment.
See Also
External links
- Medical encyclopedia article on Phase I trial
- Wikipedia's article - Phase I trial
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