Clinical trials: Dopamine
Insulin Resistance, Dyslipidemia
Metabolic Effects of Subchronic Dopamine D2 Receptor Blockade by Antipsychotic Drugs in Healthy Humans
We hypothesized that short-term treatment with AP drugs induces insulin resistance through a mechanistic route that is independent of weight gain and that atypical drugs exert stronger effects than typical compounds in this…
- Trial name
- NCT00625170
- Testing
- olanzapine, Haloperidol
- Where
- Netherlands
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Leiden University Medical Center
Opioid Induced Pharyngeal and Esophageal Dysfunction
Opioid Effects on Swallowing and Esophageal Sphincter Pressure
The purpose of this study is to determine whether a dopamine receptor antagonist metoclopramide can counteract opioid induced effects on esophageal motility and lower esophageal sphincter.
- Trial name
- NCT01191645
- Testing
- naloxone, remifentanil, Sodium Chloride
- Where
- Sweden
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Region Örebro County
Tourette Syndrome
Dopaminergic Effects on Cortical Function in Tourette's (Levodopa Protocol)
Dr. Kevin J. Black at Washington University is conducting a study to learn whether we can use MRI scans to test dopamine function in the brain and to determine whether the brain performs memory tasks differently in Tourette…
- Trial name
- TSfMRI (NCT00634556)
- Testing
- levodopa solution 2mg/ml for i.v. use
- Where
- United States
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- Washington University School of Medicine
Parkinson Disease
Trodat 1 SPECT and Dopamine Polymorphism
The study population will include 100 parkinsonian patients in early stage of disease, with total duration not exeeding 5 years.
- Trial name
- NCT01381302
- Where
- 2 sites in Israel
- Volunteers
- 90 people
- Sponsor
- Wolfson Medical Center
Schizophrenia
Imaging Dopamine D2 Agonist Binding Sites in Schizophrenia
The goals of this study is to determine (1) if differences in D2/3 receptor affinity states exist between medication-free subjects with SCH (MF-S) compared with healthy controls (HC), (2) the degree to which pre- and…
- Trial name
- NCT03999190
- Testing
- NPA radiotracer, Raclopride radiotracer, Dextroamphetamine
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- NYU Langone Health
Parkinson's Disease
Gastrointestinal Dopamine Decarboxylase and Levodopa Pharmacokinetics
The main treatment for Parkinson's disease is a medication called levodopa. Levodopa has to be absorbed from the gut and travel to the brain to work, but a naturally occurring enzyme in the lining of the stomach, called dopamine…
- Trial name
- NCT07793461
- Testing
- Levodopa (L-dopa)
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- Beth Israel Deaconess Medical Center
Parkinson Disease
Pilot Study To Assess Effect of Treatment and Adherence in PD Subjects
The purpose of this study is to evaluate the impact of imaging the brain as a diagnostic tool in the management of early Parkinson's disease (PD).
- Trial name
- NCT01788696
- Testing
- Group A - Early Imaging, Group B - Delayed Imaging
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Duke University
Drug Dependence
Brain Function in Response to Motivational Stimuli
This study seeks more information about the biology of substance dependency by exploring the brain areas involved in feeling positive and negative emotions.
- Trial name
- NCT00047866
- Where
- United States
- Volunteers
- 38 people
- Sponsor
- National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Septic Shock
Dopamine Versus Norepinephrine for the Treatment of Vasopressor Dependent Septic Shock
We are performing a prospective, randomized, controlled trial of dopamine versus norepinephrine for septic shock. The trial will enroll patients with suspected or documented site of infection and having 2 out of the three SIRS…
- Trial name
- NCT00604019
- Testing
- Dopamine, Norepinephrine
- Where
- United States
- Volunteers
- 252 people
- Sponsor
- Rush University Medical Center
Parkinson Disease
Embryonic Dopamine Cell Implants for Parkinson's Disease
The purpose of this trial is to determine if patients who received embryonic dopamine cell implant surgery showed significantly greater improvement in their Parkinson's disease than a control group undergoing the placebo…
- Trial name
- NCT00038116
- Testing
- embryonic dopamine cell implant surgery
- Where
- 3 sites in United States
- Volunteers
- 40 people
- Sponsor
- University of Colorado, Denver
Bipolar Disorder
Clinical Trial of Pramipexole in Bipolar Depression
The purpose of this study is to examine the safety and effectiveness of the drug pramipexole given in combination with lithium or divalproex for the short-term treatment of acute depression in patients with bipolar disorder.
- Trial name
- NCT00025792
- Testing
- Pramipexole
- Where
- United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- National Institute of Mental Health (NIMH)
Leigh Syndrome (Maternally Inherited, MILS), Leigh Syndrome (AR, AD, XR)
Drug Repurposing for Mitochondrial Disorders Using iPSCs Derived Neural Cells
In this project, the investigators are using iPSC lines derived from patients with Leigh syndrome that carry mutations in the mitochondrial (mtDNA) and in the nuclear DNA (nDNA) to reprogram them into neural progenitor cells and…
- Trial name
- cureMILS (NCT06967831)
- Testing
- skin biopsy, generation of iPSCs, blood drawing
- Where
- 2 sites in Germany
- Volunteers
- 80 people
- Sponsor
- Charite University, Berlin, Germany
Parkinson's Disease
A Double Blind Placebo Controlled Trial Evaluating Rasagiline Effects on Cognition in Parkinson's Disease Patients With Mild Cognitive Impairment Receiving Dopaminergic Therapy
The present pilot study is designed to assess the extent to which rasagiline may improve cognition in Parkinson's disease patients requiring dopaminergic therapy.
- Trial name
- RECOGNIZE (NCT01497652)
- Testing
- Rasagiline
- Where
- United States
- Volunteers
- 34 people
- Sponsor
- Georgetown University
Healthy
The Impact of Reward-induced Dopamine Release on Functional Connectivity: a Combined PET/fMRI Study
The present study would be the first to investigate the relationship between reward- and or social stimuli-induced dopamine (DA) release and neural function using a combined PET/fMRI approach.
- Trial name
- NCT02801643
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- Stony Brook University
Acute Pain
Efficacy of Co-administration of an NSAID With a Dopamine Agonist In Healthy Subjects
Findings from the investigator's lab and others' show the involvement of the brain's mesolimbic circuitry in pain perception and evaluation, as well as during the transition from acute to chronic pain states in both humans and…
- Trial name
- NCT02116790
- Testing
- Naproxen, Sinemet
- Volunteers
- healthy volunteers welcome
- Sponsor
- Northwestern University
Depression
Examination of a Soy-Based Supplement for Major Depression
The purpose of this study is to find out if the soy-based dietary supplement Novasoy (Registered Trademark) is effective for the short-term treatment of clinical depression.
- Trial name
- NCT00042380
- Testing
- Novasoy
- Where
- United States
- Volunteers
- 120 people
- Sponsor
- National Institute of Mental Health (NIMH)
Major Depressive Disorder
Effects of Ghrelin Administration on Dopamine and Effort
Ghrelin is a stomach-derived hormone and the only known circulating peptide that stimulates appetite. Animal studies have conclusively shown that ghrelin increases dopaminergic neurotransmission and, thereby, enhances effort.
- Trial name
- NCT05318924
- Testing
- Ghrelin
- Where
- Germany
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- University Hospital Tuebingen
Schizophrenia
Quetiapine and the Dopaminergic Epigenetic Control
BACKGROUND: Epigenetic modifications such as DNA-methylation and histone acetylation are known to be involved in the pathophysiology of schizophrenia. Aim of the present study is to investigate 1.
- Trial name
- NCT00370500
- Testing
- Quetiapine fumarate
- Where
- Germany
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Erlangen-Nürnberg Medical School
Restless Legs Syndrome, Ekbom Syndrome
Switching From Oral Dopamine Agonists to Rotigotine
The primary objective is to demonstrate safety and tolerability of switching patients with Restless Legs Syndrome (RLS) from an oral dopamine agonist to rotigotine.
- Conditions
- Restless Legs Syndrome, Ekbom Syndrome, Willis-Ekbom Disease
- Trial name
- SWITCH (NCT01976871)
- Testing
- Rotigotine
- Where
- United States
- Volunteers
- 21 people
- Sponsor
- John Winkelman, MD, PhD
Major Depression
Lexapro and Pramipexole and to Treat Major Depression
This study compares the effectiveness of the combination of antidepressants: Lexapro and Pramipexole, with the effectiveness of each antidepressant alone.
- Trial name
- NCT00086307
- Testing
- Pramipexole, Escitalopram
- Where
- United States
- Volunteers
- 39 people
- Sponsor
- National Institute of Mental Health (NIMH)