10 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 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.
Objectives: 1) To investigate change in FEV1 after 3 months nocturnal NIV in stable hypercapnic COPd patients as compared to standard care2) To investigate the relationship between FEV1 change and modification of systemic and airway inflammation and…
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…
The aim of this study is to improve our understanding of the mechanisms underlying altered social performance monitoring from a pharmacological perspective by directly comparing the effects of dopamine and oxytocin on individual and social…
Primary objective- To measure the effect of sapropterin on diurnal and day to day variations of blood phenylalanine concentrations.Secondary objective- To measure the effect of sapropterin on diurnal and day to day variations of blood tyrosine…
Primary Objective: The aim of the present study is to investigate whether home initiation of chronic NIV in stable COPD patients with CHRF is non-inferior to inpatient initiation Secondary Objective(s): The secondary objective of the study is to…
to assess whether a single-dose of levodopa improves cognitive symptoms and balances goal-directed and habitual behavior.
The study consists of two phases. In the first phase, we aim to investigate whether the dopamine receptor D4 (DRD4) genotype confers differential susceptibility to the effects of early life stress on empathy and prosocial behavior more generally in…
To investigate whether early treatment with levodopa has a delayed beneficial effect on PD symptoms and functional health, and improves the ability to (maintain) work, reduces the use of (informal) care, caregiver burden, and costs. Additionally,…