Treatment of Animals

Running head :TREATMENT OF ANIMALS IN CLINICAL TRIALS

Treatment of Animals in Clinical Trials

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Treatment of Animals in Clinical Trials

The Clinical trials are carefully controlled research studies that are done with patients . to test whether a new treatment is safe and how well it works in patients , or they may test new ways to diagnose or prevent a disease . In clinical trials

There are 4 phases of clinical trials , which are numbered I , II , III and IV

Phase I clinical

trials : The purpose of a phase I study is to find the best way to give a new treatment safely to patients . the team closely watches patients for any harmful side effects . For this the drug has already been tested in lab and animal studies , but the side effects in patients are not fully identified . very low doses of the drug are given to patients and increase the doses until side effects appear or the desired effect is seen

Phase II clinical trials : These studies are designed to test and determine how the drug works . Patients are given the best dose as determined from phase I studies . They are closely watched for an effect The side effects are also determined

Phase III clinical trials : Phase III studies involve large numbers of patients -- most often those who have just been diagnosed with a specific type of disease . Phase III clinical trials may enroll large numbers of patients

Phase IV clinical trials : Once a drug...