|1||NCT01092936||Unknown †||Italian Validation of the Revised MDS-Unified Parkinson's Disease Rating Scale||
||350||All||18 Years and older (Adult, Senior)||NCT01092936||IRIS||IRIS||March 2010||December 2010||December 2010||March 25, 2010||March 25, 2010||
|A Two Part Study (306A/306B) to Assess Droxidopa in Treatment of NOH in Patients With Parkinson's Disease||
||225||All||18 Years and older (Adult, Senior)||NCT01176240||Droxidopa NOH306 (306A / 306B)||306A/306B||June 2010||October 2012||November 2012||August 5, 2010||May 20, 2014||May 20, 2014||
† Study has passed its completion date and status has not been verified in more than two years.