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Filter by:Purpose: The study is designed to investigate cardiovascular effects of young healthy human subjects exposed to wood smoke. Participants: Approximately 30 young (18-35 years old) healthy subjects to complete. Procedure (methods): After consenting to participate in the study, participants will undergo exposure to approximately 500 μg/m^3 wood smoke for 2 hours while exercising intermittently (15 min exercise followed by 15 min rest) on a stationary bike at a workload sufficient to maintain approximately 12 L/min/m^2 minute ventilation. There are a total of three separate exposure sessions. During the first two exposure sessions, participants will wear, in randomized order, a half-face elastomeric respirator fitted with particulate filters alone (hereafter referred to as "PM mask") or particulate filters and a hydrocarbon sorbent (hereafter referred to as "VOC mask"). During the third exposure session, participants will be randomly assigned to wear either a surgical mask or an N95 respirator. Venous blood samples and measurements of lung, cardiac and vascular function will be made prior to and immediately following each exposure. Induced sputum samples and nasal epithelial lining fluid will be collected approximately 24 hours post each exposure.
Myofascial pain syndrome (MPS) is highly prevalent in the community. It is primarily diagnosed using patient self reports and physical examination, which lack reliability, sensitivity and specificity and does not provide insights into the abnormal biological and physiological processes in soft tissues. While a number of treatment methods are available to patients, there are currently no criteria to determine which treatments might be best for each patient's unique myofascial pain phenotype. To improve evidence-based management of myofascial pain, there is a critical need to develop quantitative measures that advance the understanding of the physiological processes in the underlying the soft tissues across the clinical continuum of MPS. The objective of this project is to develop a quantitative biomarker informed by the current understanding of underlying tissue-level mechanisms at the level of the "myofascial unit" (muscle, nerve, fascia, vasculature, lymphatics) that are likely to be involved in MPS.
The purpose of this research is to further investigate the potential of brain stiffness as a novel biomarker for Alzheimer's disease.
The goal of this clinical trial is to learn about the pharmacokinetic profile (behaviour of the drug in the body) of a new oral formulation of minoxidil administered in healthy volunteers. The main question that is to answer is to evaluate the bioavailability of the oral test formulation of minoxidil. The secondary onjectives is to compare it with the formulation already on the market (i.e . Regaxidil® 20 mg/mL cutaneous solution). It is planned that 14 healthy female volunteers of legal age (without any known pathology) participate in the study. The expected duration of the study is approximately 23-56 days. Each volunteer that decide to participate in this study will be sequentially administered one of the formulations planned for the study: either the test formulation (oral minoxidil tablets of 1 mg, developed by Industrial Farmacéutica Cantabria, S.A.), or the reference formulation (minoxidil skin solution, 20 mg/mL, marketed by Industrial Farmacéutica Cantabria, S.A.). After five days of administration of one of the study formulations, at least 7 days will elapse before starting an additional five days of administration of the other study formulation that had not been administered in the first sequence. Assignment to this sequence of administration of the study formulations (oral formulation or topical solution) shall be completely randomised. In each of these sequential periods of five days of administration of the study formulations, the concentration of minoxidil will be quantified in blood samples, which will be taken from each of the volunteers at certain times after the administration of the medication. These blood analyses will enable to determine the parameters that define the pharmacokinetic profile of the new oral formulation under study.
Vapendavir (VPV) is potent virostatic antiviral agent active against all known enterovirus species. VPV binds to the viral capsid, thereby inhibiting viral attachment to the target cell and, independently, preventing release of viral RNA (ribonucleic acid) into the cell. Alt VPV-101 is meant to investigate vapendavir in patients with chronic obstructive pulmonary disease (COPD) who develop a rhinoviral infection. This is a Phase 1, open-label, unblinded study. The primary objective of this study is to characterize single and multiple dose (plus a loading dose) plasma PK profiles of VPV in healthy participants (Group A) and participants with COPD (Group B). Group A is an open-label, 2-sequence, and up to a 3-period, cross-over study to assess the single-dose PK parameters and safety of VPV. Healthy participants may opt to participate in only the first 2 periods, all 3 periods or BID dosing, but it is preferred that participants complete all 3 periods. Group B is an open-label, multi-dose investigation of VPV PK parameters and safety in participants with COPD. Post-dose, follow up will continue for a minimum of 14 days and a maximum of 30 days, depending on which Group the participant is in and which periods said participant completes. There is a target for up to 24 adult participants comprised of healthy participants and participants with COPD.
The investigators have recently developed a new non-invasive brain stimulation (NIBS) system, kilohertz transcranial magnetic perturbation (kTMP) that opens up a new experimental space for safely modulating neural excitability in targeted areas of the human brain. This project will characterize the broad parameter space of kTMP in terms of tolerability and efficacy in healthy individuals. Following earlier feasibility studies, we are now increasing our number of subjects in order to capture preliminary safety and effectiveness information on a near-final device.
The goal of this randomized, double-blind, placebo control, Phase I clinical trial is to evaluate the Safety, Tolerability, and Pharmacokinetics after Single Ascending Dose (SAD) and multiple Ascending Dose (MAD) of MT200605 for Injection in Healthy Subjects. The main questions it aims to answer are: 1. The safety and tolerability of MT200605 injection in health subjects 2. The Pharmacokinetic characteristic of MT200605 injction in health subjects The study aims to recruit 60 health subjects and participants will be randomly allocate to two stages (SAD and MAD) with 36 subjects in SAD and 24 subjects in MAD stages. The placebo will be used in this study, and the researchers will compare the placebo and test article to see if the MT200605 will be safe or well tolerated.
The purpose of this study is to demonstrate the feasibility of using the transnasal endomicroscopy (TNE) platform, using intestinal potential difference (IPD) and microbiome brush to evaluate the intestine of unsedated infants.
The purpose of this research is to study the efficacy of ultrasound microvessel imaging for evaluation of Chronic Kidney Disease. Definity is an ultrasound contrast agent currently approved by the FDA for use on the heart, liver, and urinary tract. This study will look at its effectiveness on the kidney.
In this line of research, the researchers having participants engage in task switching between tasks which require a positive (target) template, negative (distractor) template, or neutral (non-informative) template to the cognitive control factors associated with each template type during visual search. This is a basic science study.