Clinical Trials
From DrugPedia: A Wikipedia for Drug discovery
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(New page: Clinical Trials involve the following Phases Testing in Humans Number of Patients Length Purpose Per...) |
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Number of Patients Length Purpose Percent of Drugs Successfully Tested | Number of Patients Length Purpose Percent of Drugs Successfully Tested | ||
| - | Phase I 20 - 100 Several months Mainly safety 70 percent | + | [[Phase I]] 20 - 100 Several months Mainly safety 70 percent |
| - | Phase II Upto several hundred Several months to 2 years Some short-term safety, 33 percent | + | [[Phase II]] Upto several hundred Several months to 2 years Some short-term safety, 33 percent |
but mainly effectiveness | but mainly effectiveness | ||
| - | Phase III Several hundred to 1 - 4 years Safety, effectiveness, dosage 25 - 30 percent | + | [[Phase III]] Several hundred to 1 - 4 years Safety, effectiveness, dosage 25 - 30 percent |
several thousand | several thousand | ||
| - | Phase IV | + | [[Phase IV]] |
Revision as of 04:58, 31 July 2008
Clinical Trials involve the following Phases
Testing in Humans
Number of Patients Length Purpose Percent of Drugs Successfully Tested
Phase I 20 - 100 Several months Mainly safety 70 percent
Phase II Upto several hundred Several months to 2 years Some short-term safety, 33 percent but mainly effectiveness
Phase III Several hundred to 1 - 4 years Safety, effectiveness, dosage 25 - 30 percent several thousand
Phase IV
