There are more than 498,563 clinical trials published worldwide with over 60,000 trials that are currently either recruiting or not yet recruiting. Use our filters on this page to find more information on current clinical trials or past clinical trials (free or paid) for study purposes and read about their results.
The participants are invited to take part in this study because they have Haemophilia B. The purpose of this study is to assess the safety and effectiveness of Refixia® about long-term routine use in patients with Haemophilia B. The participants will get Refixia® as prescribed to them by their study doctor. The study will last up to Sep 2025 for the participant. The participants may be asked to fill in the quality of life questionnaires (if they are above age of 15). The blood samples taken from the participants as part of routine clinical practice will also be used to investigate the safety for the long-term use of Refixia®.
The main objective is to assess the effectiveness and safety of the MitralStitch repair system in patients with moderate to severe and severe mitral regurgitation.
The purpose of this study is to explore drivers and mitigators of anal sex stigma in healthcare, and then to develop and pilot an intervention for health workers that mitigates the deterrent effects of this stigma on the engagement of gay and bisexual men in HIV-related services.
The study is being conducted to assess the safety and tolerability of HRS4800 after multiple oral administration with different dose regimens in healthy subjects.
The study aims to evaluate the impact of different dietary interventions on abdominal fat components and cardiometabolic parameters. This is a randomized clinical trial study conducted in overweight adults, selected by voluntary adherence, in an outpatient clinic of a cardiology hospital. The sample was calculated based on data from a study with the Brazilian population, with the sample size calculated as a function of a mean difference (d) in visceral adipose tissue (VAT) after the interventions, standard deviation (s) and a significance level of 5% (z). To correct eventual losses, the number was increased by 20%. Four dietary interventions will be applied in the 6-month period: group with calorie restriction and balanced distribution of macronutrients (group 1); group with calorie restriction and low-carbohydrate diet (group 2); group with calorie restriction and low-fat diet (group 3) and group with collective nutritional guidance (group 4). Patients will be followed up monthly to assess weight loss, analyze adherence to the diet therapy plan, reinforce nutritional guidelines and monitor anthropometric measurements and abdominal adipose tissue. The evaluation of VAT and subcutaneous adipose tissue (SAT) by ultrasonography will be performed at baseline and after 6 months of intervention. The present study is expected to clarify the effects that different dietary interventions produce over 6 months on abdominal fat deposits and cardiometabolic parameters.
This study aims to determine whether the use of non-absorbable (i.e. nylon) versus absorbable (i.e. chromic gut) sutures in traumatic hand lacerations affects wound healing, patient perception, and development of complications.
Mainly studying the correlation between the abundance of Prevotella copri （P.copri） in the gut microbiome and the progression of clinical coronary atherosclerotic heart disease（CAD） patients, and confirming that an increase in P.copri abundance will accelerate the occurrence and development of CAD disease, accompanied by an increase in serum Branched chain amino acid（BCAA）, lipopolysaccharide（LPS）, and serotonin; For people who mainly consume a high carbon water diet, blood sugar is a stronger risk factor for AS compared to blood lipids; Explore the KAP status（Study composes of Knowledge, attitude, and practice） of coronary heart disease patients and their caregivers regarding coronary heart disease and diet, and investigate whether the popularization of science after KAP investigation can change the treatment effect of patients.
The overall objective of this randomized clinical trial is to test the effectiveness of a personalized approach to the surgical treatment of OSA in children with Down syndrome (DS).The estimated prevalence of obstructive sleep apnea (OSA) in children with DS ranges from 45-83%, compared to 1-6% in the general pediatric population. Untreated OSA in children has been associated with daytime sleepiness, cognitive or behavioral problems, and cardiovascular complications, all which are common in children with DS. Adenotonsillectomy (AT) is the first line treatment for OSA in children, however, most large studies of AT outcomes have excluded children with DS. Available evidence demonstrates that AT is far less effective in children with DS than in the general pediatric population, with 48 to 95% of children with DS having persistent OSA after AT. Medical treatments such as positive airway pressure (PAP) therapy are frequently inadequate or poorly tolerated in this population, so many children with DS and OSA remain untreated. Drug-induced sleep endoscopy (DISE) enables direct observation of the sites and patterns of obstruction during sedated sleep using a flexible endoscope passed through the nose into the pharynx. DISE was developed to guide surgical decisions in adult OSA, and in recent years has also been used to design personalized surgical interventions in children. Using this DISE Rating Scale, the investigators have demonstrated that children with DS are more prone to tongue base and supraglottic obstruction than non-DS children, suggesting the need for more personalized surgical treatments that are tailored to the common sources of obstruction in this population. Several small case series demonstrate that DISE-directed surgery can be effective in treating OSA in children with DS. However, because there have been few prospective studies and no randomized trials comparing different treatment options in this population, there remains uncertainty about whether such a personalized approach leads to superior outcomes compared to the first line AT. It is the investigators' hypothesis that personalized DISE-directed surgery that uses existing procedures to address specific fixed and dynamic anatomic features causing obstruction in each child with DS will be superior to the current first line approach of AT. This novel approach may improve OSA outcomes and reduce the burden of unnecessary AT or secondary surgery for persistent OSA after an ineffective AT.
Reinforcement learning is an advanced analytic method that discovers each individual's pattern of responsiveness by observing their actions and then implements a personalized strategy to optimize individuals' behaviors using trial and error. The goal of the proposed research is to refine, adapt and perform efficacy testing of a novel reinforcement learning-based text messaging intervention to support medication adherence for patients with type 2 diabetes within a community health center setting. This study will be a parallel randomized pragmatic trial comparing medication adherence and clinical outcomes for adults in a community setting aged 18-84 with type 2 diabetes who are prescribed 1-3 daily oral medications for this disease. Participants will be randomized to one of two arms for the duration of the study period: (1) a reinforcement learning intervention arm with up to daily, tailored text messages based on time-varying treatment-response patterns; or (2) a control arm with up to daily, un-tailored text messages. Outcomes of interest will be medication adherence, as measured by electronic pill bottles, and HbA1c levels over 6 months.
This clinical study will utilize allogenic bone marrow-derived culture-expanded MSC that are expanded from the NK1R+ Mesenchymal stem cells as a therapy for chronic ischemic left ventricular dysfunction delivered using the investigational Helix transendocardial delivery catheter.