9 results
To investigate the effects of galantamine on cognitive impairment and visual hallucinations in Parkinson`s disease, both therapeutic (direct effect) and preventive (protection against an acute increase of dopaminergic medication used by the patient…
To examine the effect of L-dopa addition to optimal D2-blocking antipsychotic treatment on positive symptoms, negative symptoms, cognitive symptoms and extrapyramidal symptoms in schizophrenia.
The main objective of the trial is to identify at least one NGR that will demonstrate all of the following:1. Inhibition of ovulation2. Cycle control that is non-inferior to NuvaRing®, as judged by the incidence ofBTB-S during Treatment Cycle 3. The…
To replicate and extend the findings of the recent methylphenidate study in which methylphenidate was found to enhance episodic memory performance; To explore whether this effect of methylphenidate is primarily mediated by its dopaminergic action.
to assess whether a single-dose of levodopa improves cognitive symptoms and balances goal-directed and habitual behavior.
Primary Objectives:- To investigate the effects of a single dose (plasma concentration) 5-HTP challenge test (5-HTP200mg/CBD100+50mg/granisetron2mg) on hypothalamic fMRS activation patterns in healthy male volunteers.Secondary Objectives:- To assess…
Primary:1. To establish the effect of MCP on the release of plasma AVP and subsequent ACTH and cortisol secretion in the absence of a 5HTP-challenge.2. To establish the effect of MCP on the release of plasma AVP and subsequent ACTH and cortisol…
This is a medical-scientific research study. The purpose of the study is to investigate the effect of multiple doses of the study compound BIA 28-6156 on the pharmacokinetics of the drugs levodopa-carbidopa (Group 1) and levodopa-benserazide (Group…
Objectives - Core StudyPrimary Objectives• To evaluate the effects of oral ALZ-801 in subjects with Early AD who have the APOE4/4 or APOE3/4 genotype, on the plasma biomarkers of core AD pathology and brain volumes* Primary Plasma Biomarker Outcome…