The Evolution of Federal Regulation of Human Drugs in the United States: An Historical Essay

Abstract

Drug development prior to 1800 was based almost completely on observational trial and error. The earliest known exception was a controlled drug trial conducted by James Lind in 1747 on an English ship to show the effectiveness of citrus fruit in the treatment of scurvy. Clinical tests, but not concurrent comparative trials, were conducted by Charles Maitland in 1722 in London to show the effectiveness of variolation in preventing smallpox, and a controlled drug trial was conducted by Edward Jenner in London in 1796 to show the effectiveness of material taken from cowpox sores of young milkmaids (later called smallpox vaccine) in preventing smallpox. In 1775, William Withering learned from an elderly woman herbalist in Shropshire, England about her use of the Foxglove plant (whose active ingredient Withering later determined to be digitalis) in treating heart disease, and in 1785 published the results of his treatment of 158 patients with the drug, but he did not conduct a controlled study.