Question

How many phases of linical
studies are there? Write your

answer in numeric form.


​

Answer 1

Answer:

The phases of clinical research are the stages in which scientists conduct experiments with a health intervention to obtain sufficient evidence for a process considered effective as a medical treatment.[1] For drug development, the clinical phases start with testing for safety in a few human subjects, then expand to many study participants (potentially tens of thousands) to determine if the treatment is effective.[1] Clinical research is conducted on drug candidates, vaccine candidates, new medical devices, and new diagnostic assays.

Explanation:

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