Clinical trials: Dopamine
Pathological Gambling
Dopamine Responsivity in Gamblers
This study deals with how people decide between rewards of different value. The investigators want to understand how the brain's dopamine system impacts this kind of decision making.
- Trial name
- NCT02772978
- Testing
- Tolcapone
- Volunteers
- 19 people
- Sponsor
- University of California, San Francisco
Anorexia Nervosa
A Double-blind, Placebo Controlled Trial of Risperidone for the Treatment of Anorexia Nervosa
The aim of this pilot study is to determine the safety and efficacy of risperidone for the treatment of anorexia nervosa. Hypothesis 1: Subjects on risperidone will show a more significant decrease in body image distortion and…
- Trial name
- NCT00140426
- Testing
- Risperidone
- Where
- United States
- Volunteers
- 41 people
- Sponsor
- University of Colorado, Denver
Polymorphism-Genetic, Pain
Genetic Effects on Dopamine Response to an Opiate
Background: Small differences in genes may alter responses to drugs. One gene that has different forms is the mu opioid receptor gene. People with one form of this gene are more sensitive to alcohol.
- Conditions
- Polymorphism-Genetic, Pain, Addiction
- Trial name
- NCT01878006
- Testing
- Morphine
- Where
- United States
- Volunteers
- 15 people
- Sponsor
- National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Schizophrenia
A Pharmacokinetic Study of MP-214 in Patients With Schizophrenia
The objective of this study is to evaluate the pharmacokinetics, safety and efficacy of MP-214 in patients with schizophrenia.
- Trial name
- NCT01626859
- Testing
- MP-214 3mg, MP-214 6mg, MP-214 9mg
- Where
- Japan
- Volunteers
- 38 people
- Sponsor
- Tanabe Pharma Corporation
Major Depressive Disorder
Imaging Dopamine Release in Depression
This study aims to determine whether ventral striatal dopamine release is a mechanism of reward motivation in major depression, whether dopamine release is low in depression, and whether DA release and reward motivation predict…
- Trial name
- NCT02033369
- Testing
- Pramipexole
- Where
- United States
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- New York State Psychiatric Institute
Cocaine Dependence
Disulfiram for Cocaine Abuse
This study examines the influence of dopamine beta-hydroxylase enzyme activity on the clinical efficacy of the novel pharmacotherapy, disulfiram, for treating cocaine dependence in cocaine-dependent patients, some of whom are…
- Trial name
- NCT00395850
- Testing
- Disulfiram
- Where
- United States
- Volunteers
- 118 people, healthy volunteers welcome
- Sponsor
- University of Arkansas
Depression, HIV Infections
PET Imaging of the Dopaminergic and Serotonergic Systems in Treated HIV Positive Subjects
Background: Human immunodeficiency virus (HIV) infection is a serious disease with no cure. Some people with HIV have depression and other mood problems. They can have problems with thinking and memory.
- Conditions
- Depression, HIV Infections, HIV-Associated Cognitive Motor Complex
- Trial name
- NCT03581305
- Testing
- 18F-FDOPA, 11C-DASB
- Where
- United States
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- National Institutes of Health Clinical Center (CC)
Parkinson's Disease, Motor Symptoms
Apokyn for Motor IMProvement of Morning AKinesia Trial (AM IMPAKT)
This study is designed to assess the effect of APOKYN treatment in rapid and reliable improvement of motor symptoms in Parkinson's disease (PD) subjects suffering from delayed or unreliable onset of levodopa (L-dopa) action.
- Conditions
- Parkinson's Disease, Motor Symptoms, Akinesia, Hypomobility
- Trial name
- AM IMPAKT (NCT01770145)
- Testing
- APOKYN, L-dopa, Trimethobenzamide
- Where
- 12 sites in United States
- Volunteers
- 127 people
- Sponsor
- MDD US Operations, LLC a subsidiary of Supernus Pharmaceuticals
Postural Orthostatic Tachycardia Syndrome
Dietary Sodium's Effect on Urinary Sodium and Dopamine Excretion in Patients With Postural Tachycardia Syndrome
Patients with Postural Tachycardia Syndrome (POTS) may not adequately expand their plasma volume in response to a high sodium diet.
- Trial name
- NCT01563107
- Testing
- Plasma Volume, Exercise Capacity Test - Bicycle, Posture Study
- Where
- United States
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Schizophrenia
Safety and Efficacy of Cariprazine in Patients With Schizophrenia
The objective of this study is to evaluate the efficacy, safety, and tolerability of cariprazine relative to placebo for the treatment of acute exacerbation of schizophrenia.
- Trial name
- NCT01104766
- Testing
- Cariprazine, Aripiprazole
- Where
- 58 sites in United States, Romania and 2 more
- Volunteers
- 617 people
- Sponsor
- Forest Laboratories
Depression, Cognitive Impairment
1/2-Dopaminergic Dysfunction in Late-Life Depression (The D3 Study)
Growing evidence suggests that dopamine contributes to key cognitive, emotional, and motor functions across the lifespan. In Late-Life Depression (LLD), dysfunction in these areas is common, predicts poor outcomes, and manifests…
- Conditions
- Depression, Cognitive Impairment, Gait Impairment
- Trial name
- NCT04493320
- Testing
- Carbidopa/levodopa
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- New York State Psychiatric Institute
Schizophrenia
Neurocognitive Effects of Ziprasidone: Relationship to Working Memory and Dopamine Blockade
Ziprasidone is a newer drug intended for the treatment of the symptoms of schizophrenia. This new drug may have an added benefit of being able to help with some of the difficulties in problem solving and memory that many patients…
- Trial name
- NCT00225498
- Testing
- ziprasidone vs risperidone or olanzapine
- Where
- United States
- Volunteers
- 35 people
- Sponsor
- Northwell Health
Obesity
Dopamine and Insulin Resistance
Obese individuals have fewer striatal dopamine type 2 receptors (DRD2) than normal weight individuals. Lower DRD2 levels are associated with addiction and a decreased sense of pleasure.Obesity is also associated with insulin…
- Trial name
- NCT00802204
- Testing
- PET scan, Oral glucose tolerance test, MRI
- Where
- United States
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
Parkinson's Disease, Dyskinesia
Sarizotan HC1 in Patients With Parkinson's Disease Suffering From Treatment-associated Dyskinesia
The purpose of this study is to determine if Sarizotan HC1 1 mg b.i.d. (taken twice a day) is effective in the treatment of dyskinesia associated with dopaminergic treatment of Parkinson's disease (PD).
- Trial name
- NCT00105508
- Testing
- Sarizotan
- Where
- 31 sites in United States
- Volunteers
- 506 people
- Sponsor
- EMD Serono
Non-functioning Pituitary Adenomas, Prolactinomas
Response to Cabergoline and Pasireotide in Non-functioning Pituitary Adenomas and Resistant Prolactinomas
There are no available medical treatment options for patients with non-functioning pituitary adenomas (NFPA) or with resistant prolactinomas to dopamine agonists (DA) who are not cured by surgery.
- Trial name
- NCT01620138
- Testing
- Pasireotide, cabergoline
- Where
- Brazil
- Volunteers
- 21 people
- Sponsor
- Universidade Federal do Rio de Janeiro
Schizophrenia
Pharmacologically-augmented Cognitive Therapies (PACTs) for Schizophrenia.
This application seeks renewed support for MH59803, "Dopaminergic substrates of startle gating across species," to extend a clear path of "bench-to-bedside" progress towards a critical paradigm shift in therapeutic models for…
- Trial name
- NCT02634684
- Testing
- Dextroamphetamine
- Where
- United States
- Volunteers
- 82 people, healthy volunteers welcome
- Sponsor
- University of California, San Diego
Schizophrenia
Safety, Pharmacokinetics and Efficacy Study of MP-214 in Patients With Schizophrenia
The purpose of this study is to assess the safety, pharmacokinetics and efficacy of 3 fixed doses of MP-214 orally administered once daily to patients with schizophrenia.
- Trial name
- NCT00862992
- Testing
- Cariprazine 3 mg, Cariprazine 6 mg, Cariprazine 12.5 mg
- Where
- Japan
- Volunteers
- 34 people
- Sponsor
- Tanabe Pharma Corporation
Albinism, Oculocutaneous Albinism
Vision Response to Dopamine Replacement
The purpose of the study is to evaluate and document physiologic and functional changes in visual performance and retinal function of patients diagnosed with albinism (a dopamine deficiency state) following a trial of oral…
- Trial name
- NCT01663935
- Testing
- Levodopa/carbidopa
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- University of Wisconsin, Madison
Early Course Schizophrenia Spectrum Disorder
A Translational and Neurocomputational Evaluation of a Dopamine Receptor 1 Partial Agonist for Schizophrenia
This study will test whether CVL-562 (PF-06412562), a dopamine 1 partial agonist novel compound, affects working memory neural circuits in patients with early episode schizophrenia.
- Trial name
- NCT04457310
- Testing
- CVL-562 (PF-06412562) 1 mg, CVL-562 (PF-06412562) 4 mg, CVL-562 (PF-06412562) 15 mg
- Where
- 4 sites in United States
- Volunteers
- 112 people
- Sponsor
- Yale University
Hypotension
Study of Dopamine Versus Vasopressin for Treatment of Low Blood Pressure in Low Birth Weight Infants
Low blood pressure or hypotension is a very important problem that is often seen in premature babies, especially those with low birth weight.
- Trial name
- NCT01318278
- Testing
- Dopamine, Arginine Vasopressin
- Where
- United States
- Volunteers
- 70 people
- Sponsor
- Baylor College of Medicine