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Discover 16,901 clinical trials near Los Angeles, California. Find research studies in your area.
Showing 16381-16400 of 16,901 trials
NCT00596908
This study is designed to obtain an imaging training set that will be used to evaluate images in future trials. Currently, no radiopharmaceutical diagnostic imaging agent has been approved by the FDA in the U.S. for use in diagnosing Parkinson disease and related Parkinsonian syndromes. The diagnosis of Parkinsonian syndromes in the U.S. is based on clinical criteria only. The goal is to demonstrate that 123I-ALTROPANE® paired with SPECT imaging permits a more accurate early diagnosis of Parkinson disease than a clinical diagnosis by a general neurologist.
NCT00321438
The purpose of this study is to measure viral tropism over time in subjects with X4-tropic or non-phenotypeable virus while receiving standard of care therapy. This is an observational study. No investigational treatment will be administered through this study.