There are about 21071 clinical studies being (or have been) conducted in Spain. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
The aim of this clinical trial is to compare the horizontal bone gain when grafting a bone substitute with non fixed resorbable collagen membranes (control group), versus fixed resorbable collagen membranes (test group) in resorbed ridges requiring Guided Bone Regeneration (GBR) to facilitate implant placement at 6 months.
Erdheim-Chester Disease (ECD) is a rare form of histiocytosis characterized by the proliferation of blood cells, known as histiocytes, which infiltrate various organs and tissues, often causing irreversible damage. The causes of the condition are still unknown, and although some mutations in genes involved in cell proliferation have been identified, other factors may be involved. Susceptibility to developing rare diseases like ECD is typically associated with genetic factors, including DNA polymorphisms and epigenetic modifications. This study aims to analyze the entire genome of a large cohort of patients with ECD and healthy controls to determine whether there are polymorphisms and epigenetic variants associated with susceptibility to developing the disease. The study could thus clarify the genetic predisposition to ECD development, provide insights into disease pathogenic mechanisms, and identify proteins or cellular mechanisms potentially targeted by specific treatments.
The aim of this clinical trial was to demonstrate the effectiveness of the application of ultrasound-guided percutaneous nerve stimulation (US-PENS) directed at the axillary nerve and the suprascapular nerve, in patients with post-surgical shoulder pain. This is a randomized, longitudinal, prospective and quasi-experimental clinical trial in which a total of 70 patients divided into two groups; physiotherapy protocol group (n=35) and experimental group to which the same protocol was practiced and a US-PENS session was added (n=35). The intervention and follow-up period of the participants took place over 12 weeks.
This study is being conducted to evaluate efficacy parameters (disease free survival [DFS] and overall survival [OS]) of atezolizumab and atezolizumab in combination with tiragolumab in TMB-H or MSI-H as adjuvant treatment after standard radical intended treatment in participants with intermediate-high risk of recurrence.
Low back pain is considered one of the great global challenges in public health due to its high prevalence. Exercise have been shown to cause an increase in pain thresholds, through the effect known as exercise-induced hypoalgesia. Little is known about exercise-induced hypoalgesia induced by different modalities of exercise in low back pain, and its possible effects in lumbopelvic biomechanics. The goal of this clinical trial is to compare the effect of exercise-induced hypoalgesia after an isometric, aerobic and a sham/ placebo exercise in non-specific low back pain. The main questions it aims to answer are: - Does an isometric exercise intervention cause exercise-induced hypoalgesia in non-specific low back pain patients? - Is the effect of an isometric exercise intervention comparable to that of aerobic exercise? - Is a placebo/ sham intervention also effective to reduce pain thresholds in these patients? - Do healthy subjects show the same effects in pain thresholds as low back pain patients ? Participants will perform an isometric, aerobic and placebo/ sham exercise intervention in three different recording sessions. Before and after the interventions, pain intensity, pain-pressure thresholds and lumbopelvic biomechanical parameters during trunk flexion-extension will be recorded. Researchers will compare a group of low back pain patients to an age-, gender- and anthropometrics-matched control group of pain-free subjects to see if exercise-induced hypoalgesia is also observed when there is no low back pain diagnosis.
The goal of this observational study is to assess the effectiveness of sentinel lymph node biopsy as a treatment approach for patients with recurrent breast cancer on the same side as previous surgeries. The main questions it aims to answer are: - What is the rate of identification of the sentinel lymph node, and how does it vary among patients with different histories of axillary surgeries? - How can we describe and understand the drainage pathways, including those from the armpit on the same side as the cancer, the area near the breastbone, and the opposite armpit? Participants will undergo sentinel lymph node biopsy as part of their treatment for recurrent breast cancer. They will also receive standard treatments, including surgery and adjuvant therapies as recommended by their healthcare team.
Mild traumatic brain injury(mTBI) is a common cause of consultation to the emergency rooms worldwide and is the most common form of traumatic brain injury. Though classified as mild, as many as 40% of patients suffering mTBI do not make complete recoveries or present persistent symptoms. The present study is intended to determine long term outcome of patients suffering mTBI and to establish new prognostic models with the use of serum and saliva based biomarkers. For this purpose this study will not exclude patients regarding their comorbidities.
Coronary atherosclerosis is the most common cause of ischaemic heart disease. About 40-50% of patients with symptoms and documented ischaemia on non-invasive tests do not show obstructive coronary artery disease on coronary angiography. This cause of ischaemic heart disease called INOCA (Ischemic Non-Obstructive Coronary Artery), far from having a benign prognosis, is associated with an increase in major adverse cardiac events (MACE) as well as increased functional limitation. The current European Society of Cardiology clinical practice guidelines for the management of chronic coronary syndrome establish for the first time a IIa recommendation for the invasive analysis of coronary flow reserve (CFR) and microvascular resistance index (MRI) in symptomatic patients with INOCA. The acetylcholine (Ach) test, based on intracoronary (ic) administration, is established as indication IIb for the assessment of micro or macrovascular vasospasm in patients with suspected vasospastic angina (VSA) (4). A national multicentre registry would allow us to determine the prevalence of INOCA and its different endotypes in our setting.
Vascular target organ damage (TOD), defined as structural or functional deleterious changes in large and small arteries, is related to unfavorable arterial biomechanics, atherosclerosis and arteriosclerosis. Endothelial dysfunction due to unfavorable redox and glycation states on the bases of these phenomena. However, little is known about the role of glycoxidation on arterial biomechanics and TOD in apparently healthy individuals. The main hypothesis is that glycation and glycoxidation status are associated with arterial biomechanical abnormalities and TOD in patients with moderate to high cardiovascular risk. This is an observational, ambispective, and multicenter project that will include non-smoking patients over 18 years, without diabetes mellitus or established cardiovascular disease. Demographic, epidemiological, and clinical-anthropometric variables will be collected, including data from ambulatory blood pressure monitoring. The investigators will measure the serum percentage of glycated hemoglobin, glycated albumin, and fructosamine levels; along with quantification of skin advanced glycation and glycoxidation end productos (AGEs). Plasma concentration, activity, and structure of catalase, glutathione peroxidase, and superoxide dismutase in relation to the patient's glycation and glycoxidation status will be also evaluated. Concurrently, several biomechanical parameters will be assessed in the Common, Internal Carotid Artery, and distal limb arteries using ultrasound exploration. Incipient microvasculature damage will be also evaluated by retinal image. Patients will be followed up for the development of arterial biomechanical abnormalities and TOD, along with cardiovascular events.
ASC is a life-threatening medical emergency. The lack of a timely intervention has shown to be associated with a mortality rate higher than 20% in adults, whereas a prompt targeted therapy has displayed a decrease of the aforementioned rate to 1%. Therefore, the identification of predictors of poor outcome trough an objective tool may provide crucial help to individualize the timing of second line treatment initiation. At the state of the art, PUCAI represents the only validated tool to appraise the risk of first-line treatment failure and there is a lack of objective methods with a prognostic value in ASC. BUS has proven to be a reliable tool in assessing disease activity in children with UC and it has also shown statistically significant correlation with endoscopic features of disease activity. Given the literature suggesting a role for BUS in severe UC and the results from our retrospective study we aim to validate our findings trough a prospective assessment of the potential prognostic role of BUS in ASC.