Introduction to Clinical Trial Protocol
Drugs when manufactured by the companies do not enter the market just in a day. They have to undergo a series of tests performed under a medical environment under supervision. After passing all the tests, the regulatory authorities should consider the drug is certain not to cause any adverse side effects and approves it for sale. Even after the sale, the drug is closely watched for any issues that may arise from a long-term basis. All these are done using the clinical trials. In simpler means, clinical trial is performed in a clinical environment with test subjects who could be volunteers or patients for the disease or cause considered. The US food and Drug administration monitors the activities of the clinical trials in USA. Clinical trials can be done on a single center in a country or on multiple centers in the country. Continuous clinical trials may result as a burden in paying the volunteers or the patients taking the trials.
