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Clinical Trials for New Drugs. Therapies and Medical Equipment

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Clinical Trials for New drugs. Therapies and Medical equipment

The process for a new drug can take years and several stages to be approved by the FDA (Food and Drug Administration). Although most drugs are tested for specific kinds of diseases they might often have disappointing results for a specific disease but may have great results for another. The FDA has twelve stages of drug development and Review; these are important procedures before and after clinical trials. The twelve stages of drug development fall into the FDA’s four categories: pre-clinical, clinical, NDA (New Drug Application) review and post marketing.

In the pre-clinical category there are two stages; animals tested and IND (Investigational New Drug) Application. The drug sponsor, companies/research institutions responsible for developing a drug, develops a new drug and seeks to have it approved by the FDA. Once the drug has been developed the sponsor has to test the new drug on animals for levels of toxicity, safety and efficacy of the drug. The sponsor then must submit an IND application and must include the results from animal testing. When the FDA approves of the new drug they make sure that it is completely safe to proceed and test on humans. In most cases drugs that have gone through the pre-clinical testing never actually make it to the human testing phase or are reviewed by the FDA.

If the new drug is approved for human testing the research moves on to the clinical category, aka clinical trials, stages three-five. There are four phases of clinical trails but only three fall into the clinical category. In the first phase there are twenty-eighty healthy volunteers that are used to test the safety of the drug. The goal of the first phase is to determine what the drugs side effects are and how the drug is metabolized and excreted. In phase two there up to hundred new

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