An approved drug is a preparation that has been validated for a therapeutic use by a ruling authority of a government. This process is specific by country.
Process by country
In the United States, the FDA approves drugs. Before a drug can be prescribed, it must undergo the FDA's approval process. Drug companies seeking to sell a drug in the United States must first test it. The company then sends the Food and Drug Administration's Center for Drug Evaluation and Research (CDER) evidence from these tests to prove the drug is safe and effective for its intended use. A fee is required to make such FDA submission. For financial year 2020, this fee was: for an application requiring clinical data ($2,942,965) and for an application not requiring clinical data ($1,471,483). A team of CDER physicians, statisticians, chemists, pharmacologists, and other scientists reviews the company's data and proposed labeling. If this independent and unbiased review establishes that a drug's health benefits outweigh its known risks, the drug is approved for sale. The center doesn't actually test drugs itself, although it does conduct limited research in the areas of drug quality, safety, and effectiveness standards.
As of the end of 2013, the FDA and its predecessors had approved 1,452 drugs, though not all are still available, and some have been withdrawn for safety reasons. Accounting for subsequent corporate acquisitions, these approvals were earned by approximately 100 different organizations.
On average, only one in every 5,000 compounds that makes it through lead development to the stage of preclinical development becomes an approved drug. Only 10% of all drugs started in human clinical trials become an approved drug.
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On average, only one in every 5,000 compounds that drug companies discover and put through preclinical testing becomes an approved drug. Of the drugs started in clinical trials on humans, only 10 percent secure F.D.A. approval. ...
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