Request for Question Clarification by
tehuti-ga
on
09 Jul 2002 16:55 PDT
Hello sjt11
A new medication has to pass through a huge number of tests before it
can be marketed. These will range from simple physicochemical tests,
use of computerised expert systems, through investigations in cell
cultures, studies in animals, studies in healthy human volunteers, and
finally clinical trials in patients. The exact tests are not laid
down as such by the FDA. It is up to the study leader to decide what
tests are appropriate for the type of compound that is being tested
and its intended use. The exact design of the study, eg with respect
to species and numbers of animals used, will depend on whether the
study has to satisfy more than one regulatory authority. Since so
much depends on precedent, sometimes more testing is done that might
actually be required, in order to avoid the risk of having the
regulator decide that further testing will be needed.
The complexity of the process can be seen in the number of guidance
documents provided by the FDA at
http://www.fda.gov/cder/guidance/index.htm
I have put this as a clarification rather than an answer, because I
think you were hoping for something more specific.