To launch a drug in market is known as new drug approval (NDA) process. A drug approval process comprises of various stage, application to conduct pre-clinical trials, clinical trial, and application to marketing authorization of drug and post-marketing studies. Different country has its own regulation and guidelines to regulate the marketing of drugs. The reason for this article is to present overview of drug approval process. It will briefly review journey of new product from early stage of development until it approved by FDA for prescription use.
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