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NCT ID: NCT04566718 Completed - PCOS Clinical Trials

A Treatment Legacy Effect of Metformin in Obese Women With PCOS

Start date: March 25, 2019
Phase:
Study type: Observational

Metformin has multiple health promoting effects and it may serve as a preventive measure for individuals who are at high risk for metabolic complications. According to the latest international guidelines it should be considered as an adjunct therapy to lifestyle intervention in all overweight/obese women with PCOS, independently of their glucose homeostasis and menstrual regularity. However, there is no clear answer for how long metformin should be prescribed in this subset of women with PCOS and for how long the beneficial impact would sustain after treatment cessation. The investigators compared the consequences of metformin withdrawal after long-term therapy as opposed to the consequences of metformin suspension after short term therapy in overweight/obese women with PCOS that had previously responded to metformin by means of moderate weight loss, improved menstrual frequency and sustained normal glucose homeostasis.

NCT ID: NCT04563000 Not yet recruiting - Oxidative Stress Clinical Trials

Impact of Vitamin C on Biomarkers of Neurologic Injury in Survivors of Cardiac Arrest

Start date: October 1, 2020
Phase: Phase 2
Study type: Interventional

Out-of-hospital cardiac arrest (OHCA) is one of the leading cause of death in the world. In Slovenia approximately 25% of resuscitated patients survives to discharge from hospitals, usually with poorer functional status. One of key pathophysiological process responsible for poorer functional status is global hypoxic-ischemic injury, which is two-stage. Primary stage occurs immediately after cardiac arrest due to cessation of blood flow. With return of spontaneous circulation a secondary injury occurs, of which the leading process is an imbalance between oxygen delivery and consumption. Reperfusion exposes ischemic tissue to oxygen, resulting in the formation of large amounts of highly reactive oxygen species (ROS) within minutes. ROS lead to oxidative stress, which causes extensive damage to cell structures and leads to cell death. Consequently, necrosis and apoptosis are responsible for organ dysfunction and functional outcome of these patients. Such injury of neural tissue causes brain damage, which is ultimately responsible for poor neurological and thus functional outcome of OHCA survivors. The extent of brain damage can be determined in several ways: clinically by assessing quantitative and qualitative consciousness and the presence of involuntary movements in an unconscious patient, by assessing activity on electroencephalographic record, by imaging of the brain with computed tomography and magnetic resonance imaging, as well as by assessing levels of biological markers of brain injury. Of the latter, the S-100b protein and neuron-specific enolase have been shown to be suitable for such assessment. Oxidative stress is counteracted by the body with endogenous antioxidants that balance excess free radicals and stabilize cellular function. Vitamin C (ascorbic acid) is the body's main antioxidant and is primarily consumed during oxidative stress. Large amounts of ROS rapidly depletes the body's vitamin C stores. Humans cannot synthesise vitamin C and enteral uptake of vitamin C is limited by transporter saturation. On the other hand, parenteral (venous) dosing of vitamin C can achieve concentrations of vitamin C above physiological and thus produce a stronger antioxidant effect. The beneficial effect of parenteral dosing of vitamin C has been establish in several preclinical and clinical studies in patients with ischemic stroke and cardiac arrest. The investigators hypothesize that there is a similarly beneficial effect of vitamin C in survivors of OHCA.

NCT ID: NCT04561609 Recruiting - Clinical trials for Peripheral Diabetic Neuropathy

Transcutaneous Application of Gaseous CO2

Start date: May 2, 2020
Phase: N/A
Study type: Interventional

The research is designed to evaluate influence of transcutaneous application of CO2 (carbon dioxide) on peripheral diabetic neuropathy. Transcutaneous application of CO2 is known to have immediate effect on vasodilatation and elevates oxygen release from Hb via the Bohr effect. After repetition of the therapies neoangiogenesis is induced. Impairment of microcirculation is one of the causes of diabetic peripheral neuropathy and improvement in circulation could have positive effect also on peripheral neuropathy. In order to evaluate the effect of transcutaneous application of CO2 on peripheral neuropathy in diabetic patients the investigators designed a randomised double blind clinical trial.

NCT ID: NCT04558710 Completed - Type 1 Diabetes Clinical Trials

The Effect of Frequent Continuous Glucose Monitoring Use on Glucose Variability in Preschoolers With Type 1 Diabetes

Start date: June 1, 2018
Phase:
Study type: Observational [Patient Registry]

The purpose of this study is to determine whether continuous glucose monitoring will improve glucose variability as measured by the coefficient of variation of glucose levels in very young children with T1D. The study adopts an open-label, multi-centre, multinational, prospective registry-based population cohort design contrasting CGM use to SMBG alone in young children with type 1 diabetes over 12 months. The primary endpoint is the difference between treatment modalities (CGM vs SMBG alone) in glycaemic variability, measured as the coefficient of variation of glucose levels, during the 12 months observational period. Other Key edpoints include time in range 70-180 mg/dl, time below range 70 mg/dl and time above range 180 mg/dl.

NCT ID: NCT04544345 Completed - Clinical trials for Atrioventricular Block

Impact of Atrio-ventricular Optimization With His Bundle Pacing on Treatment of Atrio-ventricular Dromotropathy

Start date: December 23, 2019
Phase: N/A
Study type: Interventional

This study aims to determine the clinical and hemodynamic benefit of atrio-ventricular (AV) resynchronization with His bundle pacing in patients with symptomatic first degree AV block.

NCT ID: NCT04529122 Recruiting - Solid Tumours Clinical Trials

A Worldwide Cancer Registry Enrolling Participants Profiled With a Next-Generation Sequencing Test

Start date: August 27, 2020
Phase:
Study type: Observational [Patient Registry]

WAYFIND-R is a registry that aims to capture high-quality real-world data linking next-generation sequencing, treatments and outcomes from cancer patients diagnosed with a solid tumour. The WAYFIND-R has three main overarching objectives: 1. To provide a platform to support the design and conduct of clinical and epidemiological research; 2. To develop an evidence-generation platform to better understand health outcomes and cancer care processes; and 3. To characterize the treatments and clinical course of solid tumor cancers in patients who have undergone NGS testing.

NCT ID: NCT04524949 Active, not recruiting - Clinical trials for Diabetes Mellitus, Type 1

IMCY-0098 Proof of ACtion in Type 1 Diabetes (IMPACT Study)

IMPACT
Start date: December 29, 2020
Phase: Phase 2
Study type: Interventional

The IMPACT study is a study to test a new experimental drug, IMCY-0098, for the treatment of type 1 diabetes (T1D). In most people with type 1 diabetes, the pancreas loses its ability to make insulin because some cells of the body's own immune system mistakenly attack and destroy the cells in the pancreas that produce insulin (islet beta-cells). The study drug IMCY-0098 is being developed to stop the body's own immune system attacking and destroying the insulin-producing cells. When injected, it will induce new immune cells that will specifically destroy the bad immune cells responsible for the damage to the pancreas. IMCY-0098 has previously been tested on recently diagnosed type 1 diabetes patients in the first clinical study between 2017 and 2019 to collect information on the safety of IMCY-0098. The next step is to test the best dose and the best number of injections that show the drug can give a benefit. Two doses of IMCY-0098 will be tested and they will be compared to a placebo. Safety information will also be collected during the study for all the participants.

NCT ID: NCT04509791 Active, not recruiting - Clinical trials for Diabetes Mellitus, Type 1

MELD-ATG: Phase II, Dose Ranging, Efficacy Study of Anti-thymocyte Globulin (ATG) Within 6 Weeks of Diagnosis of Type 1 Diabetes (T1D)

Meld-ATG
Start date: November 24, 2020
Phase: Phase 2
Study type: Interventional

This study has been set up within the framework of the INNODIA network. INNODIA is a global partnership between 31 academic institutions, 6 industrial partners, a small sized enterprise and 2 patient organizations, bringing their knowledge and experience together with one common goal: "To fight type 1 diabetes". (www.innodia.eu) The overall aim of INNODIA is to advance in a decisive way how to predict, stage, evaluate and prevent the onset and progression of type 1 diabetes (T1D). For this, INNODIA has established a comprehensive and interdisciplinary network of clinical and basic scientists, who are leading experts in the field of T1D research in Europe and UK (United Kingdom), with complementary expertise from the areas of immunology, Beta-cell biology, biomarker research and T1D therapy, joining forces in a coordinated fashion with industry partners and two foundations, as well as with all major stakeholders in the process, including regulatory bodies and patients with T1D and their families. The MELD-ATG trial is a phase II, Multi-centre, randomised, double-blind, placebo-controlled, Multi-arm parallel cohort trial. - to investigate the effect of 2.5 mg/kg og ATG on the preservation of stimulated C-peptide at 12 months compared to placebo - to identify the minimally effective dose of ATG that shows an effect on C-peptide when compared to placebo at 12 months

NCT ID: NCT04509180 Withdrawn - Clinical trials for Persistent Atrial Fibrillation

Comparison of Treatment Outcomes Between Convergent Procedure and Catheter Ablation for Persistent and Longstanding Persistent Atrial Fibrillation

Start date: February 26, 2021
Phase: N/A
Study type: Interventional

In the last 20 years, atrial fibrillation has become one of the leading healthcare burden in Europe and other developed countries. With an ever-increasing prevalence and incidence, atrial fibrillation is expected to remain a significant problem in the near future. Due to numerous detrimental effects atrial fibrillation has on the patient's health, having an efficient and safe treatment is crucial for managing the problem. The gold standard for an atrial fibrillation treatment is a catheter ablation. In typical catheter ablation procedure, triggers in pulmonary veins are addressed with a pulmonary vein isolation- offering a high long-term success rate in patients with paroxysmal atrial fibrillation. However, the same cannot be said for persistent and longstanding persistent atrial fibrillation. Studies have shown that efficiency of catheter ablation for persistent and longstanding persistent atrial fibrillation, including multiple procedures per patient, ranges around 50 %. It is postulated that extrapulmonary vein triggers, such as foci located in the posterior wall of the left atrium, play an important role in initiating and maintaining persistent and longstanding persistent atrial fibrillation. In the past, to address this issue, a convergent procedure was developed. In convergent procedure an epicardial ablation of posterior wall is performed through a subxyphoid window. Next, an endocardial ablation with an ablation catheter is performed to isolate pulmonary veins. Because the epicardial lesions are applied in the opposite direction and not towards the esophagus, ablation of posterior wall can safely be performed. The procedure offers a high long-term success rate (85%) in patients with persistent and longstanding persistent atrial fibrillation. However, due to higher associated invasiveness, the convergent procedure carries a higher risk of complications compared with catheter ablation (4 % vs 9 %). With advancements in ablation catheter technology, such as continuous force measurement at the tip of the catheter, the depth and volume of the lesion can be estimated. This information greatly increases the reliability of lesion formation. The operator can thus effectively apply lesions to the posterior wall of the left atrium more safely in regards to the collateral damage to the esophagus. The objectives of the study are: - To compare procedural, safety and efficiency profile of convergent procedure with catheter ablation procedure, both targeting pulmonary veins triggers and triggers located in the posterior wall of the left atrium. - To compare long-term success rate of convergent procedure with catheter ablation procedure, both targeting pulmonary veins triggers and triggers located in the posterior wall of the left atrium.

NCT ID: NCT04507984 Completed - Clinical trials for Familial Hypercholesterolemia

Universal Familial Hypercholesterolemia Screening in Children

Start date: January 1, 2019
Phase:
Study type: Observational [Patient Registry]

30 million individuals globally with undiagnosed familial hypercholesterolemia (FH) are at a substantial cardiovascular disease (CVD) risk, which could be normalized by early diagnosis and treatment. Effective screening strategies are urgently needed, but the data on universal FH screening (uFHs) is scarce. The investigators aim to assess the overall performance of the uFHs program in Slovenia and to compare the common elements to the pilot uFHs program in Lower Saxony (LS; Germany).