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.
Cervical ripening is a medical treatment that can cause physical or emotional discomfort in pregnant women and is not without risks. This is a pilot study to assess feasibility and calculate the number of participants necessary for a complete clinical trial. The aim is to evaluate whether acupuncture can reduce the need for treatment (cervical ripening) in pregnant women at low or intermediate risk. Participants will be divided into two groups: one group will receive acupuncture, and the other will receive a simulated treatment of acupuncture.
This is a prospective observational study to evaluate the phenotype of 10 patients under 10 years of age with developmental epileptic encephalopathy due to mutation of the STXBP1 gene. The study will consist of a clinical and neurodevelopmental evaluation, magnetic resonance imaging, prolonged electroencephalogram, cardiological study, and analysis of biomarkers in cerebrospinal fluid. These patients will be followed up for 3 years. The aim of the study is, knowing the baseline phenotype, to analyse the response to commonly used drugs and to anticipate the response to different drugs available on the market in this group of patients based on clinical and biomarker assessment (EEG, MRI and study of specific proteins and neurotransmitters in plasma, urine and CSF).
Two primary care-based screening systems will be tested to identify subjects with referrable glaucoma to hospital care. Subjects between 45 to 64 years old living in the metropolitan area of Barcelona will be invited to participate in a one-time visit, with an optic disc examination and intraocular pressure (IOP). The criteria for referring a patient will be the detection of glaucoma but with two different approaches depending on which Integrated Practice Unit (IPU) the patients will be allocated to: one arm using an Artificial Intelligence (AI) reading software of the optic disc picture; and the other one will base their referral after an ophthalmic examination performed by an ophthalmologist. In both circuits, an optic nerve head photography will be obtained, and a masked reading center will be established to determine the ground truth for diagnosis. This screening trial will explore the level of agreement between both systems and the cost-effectiveness of each of them. Secondary analyses will include potential diagnostic composite scores (including other ancillary tests, such as optical coherence tomography images, that could maximize the screening process); the identification of population and disease characteristics (type of glaucoma, intraocular pressure) that could increase the effectivity and adherence to the screening process.
Pulmonary vein (PV) isolation is considered the therapeutic strategy of choice to maintain sinus rhythm (SR) in symptomatic patients with atrial fibrillation (AF). The most commonly used energy modality is radiofrequency (RF). However, this type of energy presents notable challenges, such as its lack of selectivity for myocardial tissue, which increases the risk of serious complications such as atrioesophageal fistula, PV stenosis, and vagus nerve injuries. In this context, PV isolation using pulsed field ablation (PFA) emerges as a promising alternative due to its greater myocardial selectivity. However, this selectivity presents additional challenges. Preliminary studies indicate that PFA may not damage the autonomic nervous system (ANS) involved in the initiation and maintenance of AF in certain patients, although stronger evidence is needed to support this claim. The investigators propose to carry out a single-center clinical trial, although with the possibility in the future of including other centers. Patients will be randomized to three research groups: PV isolation with RF, PV isolation with PFA, and PV isolation combining PFA and RF (using RF on the anterior wall and PFA on the posterior wall). This assignment will be open to the operator who performs the procedure, but blind for the researcher responsible for monitoring and for the data analyst. The objective is to compare the impact of different energy sources during PV isolation on the ability to produce a permanent alteration in the ANS. The hypothesis is that combined PF isolation will be capable of producing a permanent alteration of autonomic function parameters superior to ablation using exclusive PFA.
The goal of this clinical trial is to evaluate safety and tolerability of preservative-free parenteral treprostinil in paediatric patients with PAH (PH Group 1) who are below 18 years of age. The main question it aims to answer is: • if preservative-free parenteral treprostinil is safe and tolerable in the treatment of paediatric PAH in patients who are either treatment-naïve or have been previously treated with commercially available parenteral treprostinil formulations. Participants will receive either subcutaneous (SC) or intravenous (IV) preservative-free treprostinil and will be observed for 5 months (20 weeks ± 1 week).
The aim of this multi-center, retrospective epidemiologic study is to confirm the prognostic performance of the Digital Pathology (DP) FibroNest Phenotypic Fibrosis Composite Score (Ph-FCS), derived from standard digital pathology liver biopsy images, in predicting clinical hepatic decompensation events in patients with metabolic dysfunction-associated steatohepatitis (MASH).
The goal of this clinical trial is to test two advices on alcohol drinking in more than 10.000 Spanish adult drinkers (men of 50 or more years and women of 55 or more years). The main question it aims to answer is to test the non-inferiority advice of a moderate alcohol drinking pattern on all-cause mortality and other chronic disease like cardiovascular disease, cancer or type 2 diabetes. Participants will receive during 4 years an advice to drink alcohol following a Mediterranean Alcohol Drinking Pattern (MADP): consuming alcohol in moderation, avoidance of binge drinking and preference for red wine. Researchers will compare those who will receive a MADP advice with those who will receive an advice on abstention to see if the advice on MADP is not inferior than the abstention advice to prevent all-cause mortality and other chronic diseases.
This is an observational study where pregnant women treated with non-anti-TNF agents or targeted small molecules approved for IBD treatment will be included. Although it is a multicentre, nationwide study, the number of patients to be included is expected to be relatively low (in DUMBO 1, during 5 years of recruitment, 88 patients treated with ustekimunab, 34 treated with vedolizumab, and 2 exposed to tofacitinib were included); however, this registry involved over 60 Spanish centres and it is a paramount study providing with data on the safety of drugs during pregnancy, as patients with this condition are excluded from clinical trials. In this regard, no sample size estimation was made, as we plan to include all patients who meet the inclusion criteria and consent their enrolment.
Objectives: To identify in patients with major depression different peripheral markers of neuroinflammation in relation to affective symptoms (anxiety, depression, irritability), fatigue and cognitive symptoms; and its relationship with the response to antidepressant treatment with selective serotonin reuptake inhibitors (SSRIs). Methodology: This is a prospective observational cohort study in patients with major depression naturally subjected to treatment with SSRIs. For this, 30 patients with major depression attended in the Outpatient Psychiatry Consultations will be selected. All of them will be evaluated at baseline and after 3 months of treatment, collecting demographic and clinical variables, Diagnostic and Statistical Manual of Mental Disorders 5th edition (DSM-5) psychiatric diagnoses, psychopathological scales and immunological and biochemical variables. The correlation between immunological markers and affective and cognitive symptoms at baseline, as well as their variation with treatment, will be analyzed. A group of 20 healthy subjects will be used as a control group. Subsequently, a bivariate comparative analysis will be carried out, where the statistically significant or marginally significant variables associated with psychopathological variables will be used to build a multivariate binary logistic regression model.
The 3TR-ICS COPD study is an international, multicentre, randomized, parallel, controlled study that will recruit clinically stable former smokers COPD patients (with no exacerbations in the previous 8 weeks) on treatment with dual long-acting bronchodilators (LABA+LAMA), minimum 8 weeks of usage, not receiving ICS (either naïve or > 3 months since last usage). The overall objective of this clinical trial is to identify the molecular signatures associated with the molecular response to ICS treatment in patients with COPD stratified by the levels of circulating eosinophils, and the potential influence of the pulmonary microbiome