Clinical trials: Dopamine
Health
The Effect of Dopamine on Pulmonary Diffusion and Capillary Blood Volume During Exercise
The purpose of this study is to examine the effect of dopamine infusion and dopamine-2 receptor blockade on pulmonary capillary blood volume, diffusion, and the hemodynamic variables of pulmonary artery pressure, cardiac output…
- Trial name
- NCT02965963
- Testing
- Dopamine, Metoclopramide, Rest
- Where
- Canada
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- University of Alberta
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.
Schizophrenia, Schizophreniform Disorder
Optimization of Treatment and Management of Schizophrenia in Europe (OPTIMISE): Substudy Site Copenhagen
The investigators want to relate disturbances in first-episode schizophrenic patients in (dopaminergic) D2 receptors, brain structure, brain function, and information processing to each other and to psychopathology.
- Conditions
- Schizophrenia, Schizophreniform Disorder, Schizoaffective Disorder
- Trial name
- NCT01555814
- Testing
- Amisulpride
- Where
- Denmark
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- Birte Glenthoj
Impulsive Behavior, Impulse Disorders
Clinical Response of Impulsivity After Brain Stimulation in Parkinson's Disease
The objective of this prospective observational cohort study is to answer the following clinically important questions: 1. In patients with a pre-operative history of ICBs, what is the likelihood of improvement or deterioration…
- Conditions
- Impulsive Behavior, Impulse Disorders, Gambling, Pathological, Eating, Binge
- Trial name
- CRIPS (NCT04811807)
- Testing
- Subthalamic Nucleaus Deep brain stimulation
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- King's College London
Quality of Life
Biological and Psychological Health Effect of Ramadan Study
This observational study collects data on blood neurotransmitter and neuromodulator levels of subjects observing Ramadan. Additional information collected are a diet record, mood and perceived stress using validated surveys at…
- Trial name
- HERS (NCT04846075)
- Testing
- Ramadan fasting, praying, and welfare for poor
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Bastyr University
Aphasia
Effect of Dopaminergic Medication on Recovery of Aphasia
The investigators have been offering computer assisted therapy of aphasia (CAT) as a complement to traditional treatments to aphasia patients of the "Service of Neurorehabilitation" for some years.
- Trial name
- NCT00941265
- Testing
- levodopa and benserazide
- Where
- Switzerland
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University Hospital, Geneva
Opioid Dependence, Opioid Use Disorder (OUD)
VK4-116 Phase I Study With Food-Effect
This first-in-human, randomized, double-blind, placebo-controlled, single ascending dose (SAD), phase I study is designed to assess the safety, tolerability and pharmacokinetics of VK4-116 in healthy volunteers in fasted and fed…
- Trial name
- NCT06808932
- Testing
- VK4-116
- Where
- United States
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- National Institute on Drug Abuse (NIDA)
Prolactin-Producing Pituitary Tumor
A Study of Pasireotide in People With Prolactinoma
The researchers are doing this study to find out whether pasireotide is an effective treatment for people with prolactinoma who cannot receive dopamine agonist therapy.
- Trial name
- NCT06295952
- Testing
- Pasireotide, SF-36 and HADS
- Where
- 7 sites in United States
- Volunteers
- 10 people
- Sponsor
- Memorial Sloan Kettering Cancer Center
Smoking Cessation
Studying NMDA and Sigma-1 in Smoking Cessation Treatment (SUMMIT)
This study is a Phase 3, multicenter, randomized, double-blind, placebo- and active-controlled, parallel-group trial to evaluate the efficacy and safety of AXS-05 compared to placebo and bupropion for smoking cessation in adults.
- Trial name
- SUMMIT (NCT07766655)
- Testing
- AXS-05 (dextromethorphan-bupropion), Bupropion
- Where
- 26 sites in United States
- Volunteers
- 705 people
- Sponsor
- Axsome Therapeutics, Inc.
Cerebral Palsy
Dopamine and Motor Learning in Cerebral Palsy
Background: Cerebral palsy (CP) is the most common childhood motor disability. The neurotransmitter dopamine (DA) is important in cognition and emotions/behavior. DA may also be important in motor skill learning.
- Trial name
- NCT02839733
- Where
- United States
- Volunteers
- 28 people
- Sponsor
- National Institutes of Health Clinical Center (CC)
Major Depressive Disorder
Assessing Dopamine Transporter Occupancy in the Healthy Adult Brain With Toludivenlafaxine Hydrochloride Extended-Release Tablets Using 11C-CFT Positron Emission Tomography (PET)
This study was a single-arm, non-randomized, open-label clinical study to assess dopamine transporter occupancy in the brain of healthy adults using 11C-CFT positron emission tomography (PET)
- Trial name
- NCT05905120
- Testing
- Toludivenlafaxine hydrochloride sustained-release tablets
- Where
- China
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- Shanghai Mental Health Center
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
In Vitro Fertilization
The Influence of Dopamine Agonist Cabergoline on Oocyte Maturation
The dopamine agonist cabergoline inhibits phosphorylation of the vascular endothelial growth factor receptor-2(VEGFR-2), which prevent vascular endothelial growth factor (VEGF) overexpression and reduce the severity of Ovarian…
- Trial name
- NCT01065376
- Testing
- the timing cabergoline administration
- Where
- Taiwan
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Shin Kong Wu Ho-Su Memorial Hospital
Addiction
Prognosis of Behavioral Addiction in Parkinson's Disease
Our hypothesis is that the conventional treatment of Behavioral Addiction in Parkinson's disease is often not effective, and that affects the motor aspects (worsening akinéto-rigid syndrome and / or worsening of dyskinesia due to…
- Trial name
- PROBA-PD (NCT02671240)
- Where
- France
- Volunteers
- 164 people
- Sponsor
- University Hospital, Strasbourg, France
Parkinson Disease
Electroencephalographic Signatures of Neuropsychiatric Fluctuations in Parkinson's Disease
Dopaminergic replacement therapy while efficient at reducing symptoms of Parkinson's disease is however often associated with motor and non-motor fluctuations which have a severe impact on patient quality of life.
- Trial name
- Transition (NCT06301282)
- Testing
- assessment during the transition between OFF-levodopa (i.e. withdrawal of levodopa phase) and ON-levodopa (i.e. effect of Levodopa phase)states
- Where
- Switzerland
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University Hospital, Geneva
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
Hormonal Changes, Menstrual Cycle
Dopamine, Reward Learning and Sex Hormones
Hormonal transition periods during the menstrual cycle may predispose women to mental disorders. Hormonal fluctuations provide specific neuroendocrine conditions that modulate brain structure and function and these actions affect…
- Trial name
- NCT06365515
- Testing
- Levodopa administration
- Where
- Germany
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- University Hospital Tuebingen
Healthy Participants
Influence of Dopaminergic Blockade on Stress Responses, Motivation and Emotional Reactivity in Humans.
The study aims to identify whether partial blockade of human dopamine signaling with antipsychotic drugs affects human stress responses, motivation and emotion.
- Trial name
- NCT03863691
- Testing
- Amisulpride 300 MG
- Where
- Germany
- Volunteers
- 85 people, healthy volunteers welcome
- Sponsor
- Philipps University Marburg
Alcohol Use Disorder
Exploring Regulation and Function of Dopamine D3 Receptors in Alcohol Use Disorders: A [11C]-(+)-PHNO Study
There is a need to better understand the mechanisms underlying alcohol use and dependence in order to advance the clinical treatment of alcohol dependence.
- Trial name
- NCT03037060
- Testing
- [11C]-(+)-PHNO PET scan, Alcohol Self-Administration, Craving Task
- Where
- Canada
- Volunteers
- 17 people
- Sponsor
- Centre for Addiction and Mental Health
Major Depressive Disorder, Anhedonia
Depression and Dopamine Transporter Function Study Using C-11 Altropane
Major depressive disorder (MDD) is often characterized by anhedonia and impaired ability to modulate behavior as a function of rewards.
- Trial name
- NCT01701141
- Where
- 2 sites in United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Mclean Hospital