ananyo writes "A court decision on 23 July could help to tame the largely unregulated field of adult stem-cell treatments. The US District Court in Washington DC affirmed the right of the Food and Drug Administration (FDA) to regulate therapies made from a patient's own processed stem cells. The case hinged on whether the court agreed with the FDA that such stem cells are drugs. The judge concurred, upholding an injunction brought by the FDA against Regenerative Sciences, based in Broomfield, Colorado. The FDA had ordered Regenerative Sciences to stop offering 'Regenexx', its stem cell treatment for joint pain, in August 2010. As Slashdot has noted before, they are far from the only company offering unproven stem cell therapies."