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NCT ID: NCT03498053 Completed - Cigarette Smoking Clinical Trials

Smoking Topography Study 2018

Start date: December 12, 2017
Phase: N/A
Study type: Interventional

Rationale: The World Health Organization Framework Convention on Tobacco Control (WHO FCTC) aims for a regulatory strategy including the regulation of the contents of tobacco products (Article 9). Cigarette smoke includes more than 7000 chemicals which are harmful and cause tobacco-related diseases. In the future, regulation of these harmful cigarette constituents should be based on more chemical classes, as the WHO suggested. However, in order to introduce such class-based regulation, a scientific base is needed to define upper limits of allowed amounts of chemicals (groups) in cigarette smoke emissions and to ensure decreased harmful health effects due to cigarette smoking. To date, the causality between human exposure to specific cigarette smoke compounds and the harmful effects is unknown. The first step in closing the gap in knowledge between cigarette smoke exposure and developing tobacco-related diseases includes a proper determination of human exposure to cigarette smoke chemicals. This includes measuring smoking topography and inhalation. Smoking topography is how the smoker smokes the cigarette (puff volume, duration, flow etc). The goal is to link smoking behavior to smoke exposure, for 2 different cigarette brands. The participants will smoke their 'normal' brand Marlboro (experimental day 1) after which they receive the low TNCO (tar, nicotine and carbon monoxide) Marlboro Prime to smoke at home. A week later the experimental day (day 2) is repeated with this cigarette. On the last experimental day (day 3), the participants will smoke the Prime cigarette while the ventilation holes of this low-TNCO cigarette are taped. Afterwards, the personal smoking profiles of the participants, and thus their individual exposures, will be mimicked in the lab using machine smoking. The observed smoking topography and inhalation parameters together give information about the exposure to smoke toxicants. In addition, this study is also designed to measure biomarkers of exposure in body fluids of smokers, such as nicotine and the most abundant cigarette smoke chemicals and their metabolites. Objective: We want to find out whether the individual habitudinal smoking topography of a smoker smoking his usual brand, and the changes between cigarettes over the day, can be compared to that of smoking a low-TNCO or high nicotine cigarette (i.e. the Marlboro Prime and Red Sun). In addition, differences in inhalation patterns are investigated. Next to that, the exposure will be connected to the nicotine and carbon monoxide levels in blood and/or urine. Also smoke toxicants (and metabolites) in exhaled air, saliva, urine and blood of smokers are determined. Study design: This prospective observational study monitors smokers in their habitudinal smoking during the day (for 10 hr) while smoking Marlboro, Marlboro Prime and Marlboro Prime taped cigarette, while during the day bodily fluids are sampled at several time points. Study population: This population consists of 18 Caucasian, healthy, adult males, aged between 25-34 years old. Participants should be used to smoke Marlboro (red/regular) for at least 3 years with a daily average of 13 to 25 cigarettes (about a package every day). Nature and extent of the burden and risks associated with participation, benefit and group relatedness: The participating smokers smoke according to their habitudinal smoking pattern, and are therefore not increasingly exposed to the harmful health effects of cigarette smoking. The invasive part of the study is their stay for 3 days (and 1 night when wanted) in a hotel, and the sampling of blood, saliva, urine and exhaled air.

NCT ID: NCT03449875 Completed - Clinical trials for Abdominal Aortic Aneurysm

Global Post-market Registry for the Treovance Stent-graft.

Start date: February 5, 2014
Phase: N/A
Study type: Observational [Patient Registry]

Patients with abdominal aortic aneurysms (AAA) suitable for endovascular aortic repair (EVAR) with Treovance were eligible to participate. Main inclusion criteria were: age 18-85 years; infrarenal AAA without significant infrarenal or distal iliac landing neck calcification or thrombus formation; infrarenal or distal iliac landing neck size requirements specified in the instructions for use. Main exclusion criteria: dissection/ruptured aneurysm or prior AAA endovascular or surgical repair. The primary endpoints were standard EVAR criteria.

NCT ID: NCT03428789 Completed - Breast Cancer Clinical Trials

Nerve Coaptation in DIEP Flap Breast Reconstruction

Start date: September 2015
Phase: N/A
Study type: Observational

The sensory recovery of the breast remains an undervalued aspect of breast reconstruction and surgical reinnervation is not regarded as a priority by most reconstructive surgeons. A prospective study was conducted of all patients who underwent either innervated or non-innervated DIEP flap breast reconstruction in Maastricht University Medical Center and returned for follow-up between September 2015 and July 2017. Semmes-Weinstein monofilaments were used for sensory testing of the breast. This study showed that nerve coaptation in DIEP flap breast reconstruction resulted in a significantly improved sensation of the reconstructed breast compared to non-innervated flaps.

NCT ID: NCT03410979 Completed - Healthy Clinical Trials

A Study to Assess Safety, Tolerability and Pharmacokinetics of GLPG2737 in Healthy Subjects

Start date: November 25, 2016
Phase: Phase 1
Study type: Interventional

This study is a first-in-human (FIH), Phase I, single center, randomized, double-blind, placebo-controlled, sequential group study in healthy male subjects to assess the safety, tolerability and PK of single ascending oral doses of GLPG2737 and multiple ascending oral doses of GLPG2737 administered for 14 days.

NCT ID: NCT03395951 Completed - Heart Failure Clinical Trials

Mean Systemic Filling Pressure Continuous Diuretics Critical Care Patients

Start date: October 1, 2014
Phase: N/A
Study type: Observational

Within clinical settings observation of hemodynamic changes (e.g. mean systemic filling pressure, cardiac output) in critically ill patients with a clinical indication for deresuscitation with intravenous diuretic therapy.

NCT ID: NCT03380338 Completed - Clinical trials for Type 2 Diabetes Mellitus

The Effect of Exercise on Gut Microbiota in Type 2 Diabetic Patients

Start date: May 11, 2016
Phase: N/A
Study type: Interventional

To investigate whether targeted lifestyle intervention (exercise), induces a change in intestinal fecal microbiota related to improved glycemic control and systemic inflammation in patients with DM type 2.

NCT ID: NCT03380325 Completed - Clinical trials for Diabetes Mellitus, Type 2

The Effect of Iloprost on Capillary Recruitment and Insulin Sensitivity in Type 2 Diabetes

Start date: May 11, 2016
Phase: N/A
Study type: Interventional

This study examines the effects of iloprost - a stable prostacyclin analogue - on insulin-mediated muscle capillary recruitment and whole-body glucose uptake in a cross-over design.

NCT ID: NCT03377686 Completed - Asthma Clinical Trials

Breath Analysis in Children by New Point-of-care Instruments

Start date: March 2016
Phase: N/A
Study type: Observational

In this study new hand-held devices for measuring exhaled breath will be tested in children with asthma, CF, and healthy controls. Main objectives will be feasibility and discriminative value of these techniques.

NCT ID: NCT03358134 Completed - Clinical trials for Spondylarthropathies

Mechanism of Action of Anti-IL17 Therapy in Peripheral Spondyloarthritis

MoA aIL-17
Start date: March 2014
Phase: Phase 3
Study type: Interventional

The purpose of this study is to determine the mechanism of action on target tissue level of anti Interleukine-17 (anti-IL-17) an therapy in peripheral spondyloarthritis. Patients will be treated with anti-IL-17 therapy (secukinumab) for 12 weeks and with a 2 year extension period thereafter. At week 0 and 12 peripheral blood, synovial tissue and skin will be analysed with different techniques, including immunohistochemistry, RNA analysis and tissue culture to assess the effect of the therapy on inflammatory pathways.

NCT ID: NCT03354156 Completed - Atherosclerosis Clinical Trials

The Effect of Statin Treatment on Trained Innate Immunity

Start date: January 2015
Phase: N/A
Study type: Observational

The innate immune system plays a pivotal role in the development and progression of atherosclerosis. Recently, it was reported that monocytes can develop a long-lasting immunological memory after stimulation with various microorganisms, which has been termed 'trained innate immunity'. This memory is induced by epigenetic reprogramming, in particular trimethylation of lysine 4 at histone 3 (H3K4me3). In this study, the investigators aim to investigate the immunophenotype of circulating monocytes in patients with elevated LDL cholesterol levels and the effect of statins on this phenotype.