10 results
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 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.
to assess whether a single-dose of levodopa improves cognitive symptoms and balances goal-directed and habitual behavior.
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…
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 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…
Main study: primary vaccination regimenPrimary Objective: 1. To determine the difference in the antibody response against SARS-CoV-2 in PLWH 4 weeks after the completed vaccination schedule with one of the two available mRNA vaccines (BNT162b2 or…
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…
Primary Objective:To evaluate long-term safety and tolerability of REN001 in subjects with PMM.Secondary Objective:To evaluate subjects with mtDNA-PMM who are receiving long-term treatment with REN001 in terms of PMM associated symptoms, exercise…
Primary:- To evaluate the safety and tolerability, and define the Maximum Tolerated Dose (MTD) and Recommended Phase 2 Dose (RP2D) of TransCon TLR7/8 Agonist alone or in combination with pembrolizumab- Part 3 Neoadjuvant Cohorts (Cohorts 3c and 3d…