40
Participants
Start Date
May 31, 1995
Primary Completion Date
August 31, 2009
Study Completion Date
August 31, 2009
embryonic dopamine cell implant surgery
Half of the participants received the cell implant surgery, while the other half received the placebo. After the double-blind phase of the study, patients in the placebo group had the option of receiving tissue implants. Fourteen of these patients eventually had transplants.
placebo
sham surgery
The Movement Disorder Center, Columbia-Presbyterian Hospital, New York
North Shore University Hospital, Manhasset
University Hospital, the University of Colorado Health Sciences Center, Denver
University of Colorado, Denver
OTHER