15 results
1. To quantify the influence of propofol on the distribution, redistribution and elimination of ketamine and to evaluate the importance of hemodynamic parameters on the pharmacokinetics of ketamine.2. To quantify the influence of ketamine on the…
By means of resting state network measurments using fMRI we hope to gain more knowlegde about the actions (for example as an analgesic) an side effects of S(+)-ketamine on the central nervous system at different doses. Also blood samples will be…
The objectives are to assess the pharmacokinetic and pharmacodynamic effects of sub-anesthetic ketamine administration, to assess the optimal dose of ketamine and gender differences, to compare different oucome measures for psychomimetic symptoms…
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.
In a fMRI experiment, will measure the changes in brain activity patterns and in functional connectivity. We hypothesize that a subanesthetic dose of S-Ketamine impairs the functional connectivity, especially the feedback connections that are…
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.
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…
Primary aim:The primary aim of this study is to evaluate the effect of two consecutive infusions of S(+)-ketamine in patients with CRPS-I on pain relief. The design of the study is prospective, randomised, double-blind and placebo-controlled.…
1. Measure DNIC and offset analgesia in CRPS-1 patients, fibromyalgia patients and neuropathic pain patients;2. Compare DNIC and offset analgesia in chronic pain patients with DNIC and offset analgesia in healthy volunteers;3. Assess the effect of…
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 assess whether a single-dose of levodopa improves cognitive symptoms and balances goal-directed and habitual behavior.
The primary objective is to demonstrate non-inferiority of experimental esketamine administration of 6x 1 day per 2 weeks (in total 3 months) as compared with standard esketamine administration of 1x 6 consecutive days. The end of study is at 6…
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…
To investigate the effectiveness of s-ketamine as add-on medication to a multimodal pain approach with acetaminophen and opioids compared to placebo with the same multimodal pain approach on the total postoperative opioid consumption, the…