Clinical trials: Dopamine
Depression
Effects of Antidepressant Therapy on Brain Dopamine Transporter Activity in People With Major Depression
This study will examine changes in brain dopamine transporter activity before and after antidepressant therapy.
- Trial name
- NCT00655057
- Testing
- S-citalopram, Cognitive behavioral therapy (CBT), TRODAT-1 single photon emission computed tomographic (SPECT) imaging
- Where
- United States
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- University of Pennsylvania
Schizophrenia
Long-term Study of Cariprazine in Patients With Schizophrenia
The objective of this study is to evaluate the long-term safety, tolerability, and pharmacokinetics of cariprazine in patients with schizophrenia.
- Trial name
- NCT01104792
- Testing
- Cariprazine
- Where
- 86 sites in United States, Colombia and 4 more
- Volunteers
- 752 people
- Sponsor
- Forest Laboratories
Parkinson Disease, Movement Disorders
Altropane Dose for Imaging Patients With Suspected Parkinson's Disease
Previous studies showed that a dose of 8 millicuries of Altropane was appropriate for imaging patients with suspected Parkinson's disease. This study determined if a lower dose (5 millicuries) would suffice.
- Trial name
- NCT05636852
- Testing
- Altropane (123I) Injection
- Where
- 4 sites in United States
- Volunteers
- 15 people
- Sponsor
- GE Healthcare
Parkinson's Disease
Rasagiline as Add on to Dopamine Agonists in the Treatment of Parkinson's Disease
To assess the efficacy of rasagiline 1 mg as a first add-on treatment to dopamine agonist therapy in early Parkinson Disease (PD) patients, , not optimally controlled on dopamine agonists as compared to placebo.
- Trial name
- ANDANTE (NCT01049984)
- Testing
- Rasagiline
- Where
- 58 sites in United States
- Volunteers
- 328 people
- Sponsor
- Teva Neuroscience, Inc.
Affective Disorders, Psychotic, Depressive Disorder
Treatment of Psychotic Major Depression With Mifepristone
The purpose of this research study is to see how certain hormones cause changes in mood and thinking in some depressed patients and to determine the effectiveness of mifepristone in treating some forms of depression.
- Trial name
- NCT00867360
- Testing
- Mifepristone (RU-486)
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Stanford University
Restless Legs Syndrome
The Effect of Horizant (Gabapentin Enacarbil) on Augmentation
Restless Legs Syndrome (RLS) is a common neurological disorder. Augmentation is the main complication during long-term DA treatment of RLS.
- Trial name
- XP-IIT-0034 (NCT02642315)
- Testing
- Horizant
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- University of Missouri-Columbia