Source MS Trust:
The development of new drugs is a long and difficult process. Fewer than one or two compounds in 10,000 tested actually make it through to being licensed treatments with many being rejected on safety, efficacy or quality grounds. On average it will take 10-15 years for a new compound to get from the test-tube into the medicine cabinet. It is important to remember that not all the treatments currently being developed or tested will receive a license or be approved for use in the NHS. Read on.