Autopsy Shows Withdrawn Drug Was Helping Man With Parkinson'sBy Randolph E. Schmid Associated Press Writer Published: Jul 1, 2005 WASHINGTON (AP) - A drug withdrawn from clinical trials because of safety concerns was helping regrow nerve fibers in the brain of a man with Parkinson's disease, scientists report. The finding probably will renew debate over the drug, GDNF. It had offered encouragement to people with Parkinson's who reported improvement when using it in trials. But the drug was withdrawn by the manufacturer, Amgen Inc., this year. Some of those patients in the trial sued Amgen to get continued supplies of...