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NCT ID: NCT03513393 Completed - Hepatitis C Clinical Trials

Influence of Cola on the Absorption of the HCV Agent Velpatasvir in Combination With PPI Omeprazole.

COPA
Start date: August 1, 2018
Phase: Phase 1
Study type: Interventional

Epclusa® is a pan-genotypic, once-daily tablet for the treatment of chronic hepatitis C virus (HCV) infection containing the NS5B- polymerase inhibitor sofosbuvir (SOF, nucleotide analogue) 400 mg and the NS5A inhibitor velpatasvir (VEL) 100 mg. Velpatasvir has pH dependent absorption. At higher pH the solubility of velpatasvir decreases. It has been shown that in subjects treated with proton pump inhibitors (PPIs) such as omeprazole, the absorption of velpatasvir is reduced by 26-56%, depending on the dose of omeprazole, concomitant food intake, and timing/sequence of velpatasvir vs. omeprazole intake. As a result, concomitant intake of PPIs with velpatasvir is not recommended. For a number of reasons, the prohibition of PPI use with velpatasvir is a clinically relevant problem. First, PPI use is highly frequent in the HCV-infected subject population with prevalences reported up to 40%. Second, PPIs are available as over-the-counter medications and thus can be used by subjects without informing their physician. Third, although HCV therapy is generally well tolerated, gastro-intestinal symptoms such as abdominal pain and nausea are frequently reported, which my lead to PPI use. One solution of this problem could be the use of other acid-reducing agents such as H2-receptor antagonists or antacids. In general, they have a less pronounced effect on intragastric pH, and are considered less effective than PPIs by many patients and physicians. A second solution would be the choice of another HCV agent or combination that is not dependent on low gastric pH for its absorption such as daclatasvir. Daclatasvir, however, is not a pan-genotypic HCV agent and may be less effective against GT 2 and 3 infections than velpatasvir. Second, not all subjects have access to daclatasvir, depending on health insurance company or region where they live. A third solution, and the focus of this COPA study, is to add a glass of the acidic beverage cola at the time of velpatasvir administration in subjects concurrently treated with PPIs. This intervention has been shown to be effective for a number of drugs from other therapeutic classes who all have in common a reduced solubility (and thus reduced absorption) at higher intragastric pH, namely erlotinib, itraconazole, ketoconazole. The advantages of this approach are: (1) only a temporary decrease in gastric pH at the time of cola intake; the rest of the day the PPI will have its therapeutic effect (2) cola is available worldwide (3) the administration of cola can be done irrespective to the timing of PPI use.

NCT ID: NCT03513341 Completed - Physical Activity Clinical Trials

Levels of Daily Physical Activity and Sedentary Behaviour in Maastricht University's Undergraduate First Year Students

Start date: May 1, 2017
Phase:
Study type: Observational

This study explores the levels of daily physical activity and sedentary behaviour in Maastricht University's undergraduate first year students. Furthermore, this study explores the correlations between the students' demographical background information with their levels of physical activity and sedentary behaviour.

NCT ID: NCT03513042 Terminated - Clinical trials for Squamous Cell Carcinoma of the Head and Neck

Early Response Evaluation of Proton Therapy by PET-imaging in Squamous Cell Carcinoma Located in the Head and Neck

ERM-PT-HNSCC
Start date: January 21, 2021
Phase:
Study type: Observational

The goal of this project is to develop and characterise an imaging strategy for biology-guided individualisation of the proton therapy plan to improve patient outcome and quality-of-life. Positron-emission tomography (PET) studies reflecting glucose metabolism, hypoxia and physical changes of proton-irradiated tumour tissues will be performed. Patients with head and neck cancer will be studied, as these individuals frequently experience recurrences within the radiation field, often with limited therapeutic options. Severe side-effects and functional impairment, deteriorating patients' quality-of-life, limited the use of dose-escalation in recent feasibility studies of photon therapy guided by individual PET-response. However, proton therapy, currently being introduced in the Netherlands, improves the precision of radiotherapy and thereby limits the side-effects caused by irradiation of neighbouring healthy tissues. Therefore, in proton therapy dose-escalation to improve patient outcome is less restricted by toxicity. Using PET-studies of two hallmarks of radioresistance, glucose metabolism and hypoxia, side-by-side, before and early in-treatment, the predictive ability of both PET-techniques for local recurrence-free survival will be compared. A treatment plan adapted to the individual response measured by both procedures and compute tumour-dose and toxicity, will be simulated, thereby substantiating feasibility of image-guided adaptive replanning. Simultaneously to biological responses, proton therapy-induced physical changes will be studied. These atomic changes, dependent on tissue-composition and dose-deposition, are measurable by PET. It is expected that activation-PET to measure tissue-changes during therapy, a potential new biomarker of treatment efficacy, toxicity but also accuracy of treatment plan execution. Activation-PET will be related to earlier-mentioned PET-imaging of metabolism. This clinical-technological project paves the way for an interventional trial of PET-guided treatment personalisation. Activation-PET will also serve as biomarker and quality control for proton therapy and support the current development of specialised in-beam PET-technology. These PET-techniques together will help us to individualise treatment, which is of great importance for the success and cost-effectiveness of proton therapy.

NCT ID: NCT03511664 Completed - Prostate Cancer Clinical Trials

Study of 177Lu-PSMA-617 In Metastatic Castrate-Resistant Prostate Cancer

VISION
Start date: May 29, 2018
Phase: Phase 3
Study type: Interventional

The primary objective of this study was to compare the two alternate primary endpoints of radiographic progression-free survival (rPFS) and overall survival (OS) in patients with progressive prostate-specific membrane antigen (PSMA)-positive metastatic castration-resistant prostate cancer (mCRPC) who received 177Lu-PSMA-617 in addition to best supportive/best standard of care (BSC/BSoC) versus patients treated with best supportive/best standard of care alone.

NCT ID: NCT03510923 Completed - Cholecystectomy Clinical Trials

Selective Rather Than Routine Histopathological Examination Following Appendectomy and Cholecystectomy

FANCY
Start date: May 1, 2018
Phase:
Study type: Observational

The FANCY study will investigate whether a selective policy of histopathological examination of appendices and gallbladders based on the intraoperative findings of the surgeon is safe and cost-effective.

NCT ID: NCT03510884 Completed - Clinical trials for Hypercholesterolaemia

An Efficacy and Safety Study of Alirocumab in Children and Adolescents With Heterozygous Familial Hypercholesterolemia

Start date: May 31, 2018
Phase: Phase 3
Study type: Interventional

Primary Objective: To evaluate the efficacy of alirocumab administered every 2 weeks (Q2W) and every 4 weeks (Q4W) versus placebo after 24 weeks of double-blind (DB) treatment on low-density lipoprotein cholesterol (LDL-C) levels in participants with heterozygous familial hypercholesterolemia (heFH) 8 to 17 years of age on optimal stable daily dose of statin therapy ± other lipid modifying therapies (LMTs) or a stable dose of non-statin LMTs in case of intolerance to statins. Secondary Objectives: - To evaluate the efficacy of alirocumab versus placebo on LDL-C levels. - To evaluate the effects of alirocumab versus placebo on other lipid parameters. - To evaluate the safety and tolerability of alirocumab in comparison with placebo. - To evaluate the efficacy, safety, and tolerability of alirocumab after open label treatment. - To evaluate the development of anti-alirocumab antibodies.

NCT ID: NCT03510715 Completed - Clinical trials for Hypercholesterolemia

An Efficacy and Safety Study of Alirocumab in Children and Adolescents With Homozygous Familial Hypercholesterolemia

Start date: August 31, 2018
Phase: Phase 3
Study type: Interventional

Primary Objective: To evaluate the efficacy of alirocumab (75 or 150 milligrams [mg] depending on body weight [BW]), administered every 2 weeks (Q2W), on low-density lipoprotein cholesterol (LDL-C) levels at Week 12 of treatment in children and adolescents with homozygous familial hypercholesterolemia (hoFH) of 8 to 17 years of age on top of background treatments. Secondary Objectives: - To evaluate the efficacy of alirocumab after 24 and 48 weeks of treatment on LDL-C levels. - To evaluate the effects of alirocumab on other lipid parameters (eg, apolipoprotein B [Apo B], non-high density lipoprotein cholesterol [non-HDL-C], total cholesterol [Total-C], high density lipoprotein cholesterol [HDL-C], lipoprotein a [Lp (a)], triglycerides [TG], apolipoprotein A-1 [Apo A-1] levels) after 12, 24, and 48 weeks of treatment. - To evaluate the safety and tolerability of alirocumab up to 48 weeks of treatment.

NCT ID: NCT03509662 Active, not recruiting - Cardiac Arrest Clinical Trials

Vitamin C in Post-cardiac Arrest

VITaCCA
Start date: October 7, 2019
Phase: Phase 2
Study type: Interventional

Only half of the patients suffering from cardiac arrest arrive at the hospital alive. Of these survivors, more than 50% will still die or remain severely disabled. During cardiac arrest ischemia causes damage to the vital organs, especially the brain. When with return of spontaneous circulation oxygen is re-offered to the ischemic organs, massive amounts of reactive oxygen species (ROS) are produced. These ROS can further increase the damage to the myocardium and brain (reperfusion injury). Vitamin C is the primary circulating antioxidant. It scavenges free radicals and reduces the production of ROS. In a recent study we demonstrated that vitamin C plasma levels are deficient in ~60% of the patients after cardiac arrest, probably due to massive consumption. Vitamin C deficiency reduces the protection against oxidative stress. Intravenous supplementation is needed to restore deficiency and the antioxidative effect of vitamin C is much more potent if it is administered in a supraphysiological dose (≥ 3 g per day). Its strong antioxidative effect may reduce damage to the circulation and to brain, heart and other organs. Beneficial effects of high dose i.v. vitamin C after cardiac arrest have been demonstrated in preclinical studies, but not in patients. The investigators hypothesize that vitamin C can reduce organ damage, especially cerebral injury, if administered for a short period as a high i.v. dose during the very early phase of reperfusion after cardiac arrest. Objectives: - To determine whether an early high dose i.v. vitamin C can improve organ function, especially neurological outcome, in patients after cardiac arrest - To explore the optimal dosing regimen for high dose i.v. vitamin C - To investigate in vitro the difference in effect of plasma obtained from post cardiac arrest patients treated with placebo, 3 gr/day or 10 gr/day vitamin C on endothelial cell viability and underlying oxidative pathways.

NCT ID: NCT03508947 Completed - Clinical trials for Duchenne Muscular Dystrophy

Safety and Tolerability of WVE-210201 in Patients With Duchenne Muscular Dystrophy

Start date: January 24, 2018
Phase: Phase 1
Study type: Interventional

This is a Phase 1, double-blind, placebo-controlled, single ascending dose cohort study to evaluate the safety, tolerability, and plasma concentrations of WVE-210201 in ambulatory and non-ambulatory male pediatric patients with DMD amenable to exon 51 skipping intervention.

NCT ID: NCT03507790 Completed - Clinical trials for Mild to Moderate Alzheimer's Disease

A Study to Evaluate the Safety and Efficacy of CT1812 in Subjects With Mild to Moderate Alzheimer's Disease.

Start date: October 10, 2018
Phase: Phase 2
Study type: Interventional

This is a multi-center, randomized, double-blind, placebo-controlled, parallel group 36 week multicenter Phase 2 study of two doses of CT1812 in adults with mild to moderate Alzheimer's Disease (AD).