There are about 3194 clinical studies being (or have been) conducted in Portugal. 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 junctional zone (JZ) is an internal layer of the myometrium, with unique characteristics that allow its visualization as a hypoechogenic structure in three-dimensional (3D) ultrasound. While there is a growing realization that the origins of major obstetrical complications associated with defective deep placentation, such as pre-term labour, fetal growth restriction and pre-eclampsia, may lie in the very early pregnancy events, the underlying mechanisms are not understood.
The main goal is to learn how HeartInsight is used in clinical routine care. HeartInsight is a heart failure monitoring and notification tool within BIOTRONIK's Home Monitoring System. HeartInsight combines patient data as collected by the implanted devices to alert the attending physicians to impending worsening of heart failure events of the patients. This study will create a sound and seamless documentation of approximately 150 HeartInsight alerts, their processing, subsequent interventions and disease progressions. The data will be analyzed to characterize and quantify the use of HeartInsight in a clinical routine set-up.The patient population consists of heart failure patients with BIOTRONIK CRT-D devices that support HeartInsight.
Mechanical debridement is the traditional method for the treatment of peri-implant mucositis and its success depends on the patient's correct oral hygiene. It is believed that probiotics may help by their ability to modulate the oral biofilm, resulting in anti-inflammatory and anti-bacterial plaque action. The aim of this study is to evaluate the adjuvant effect of the probiotic Limosilactobacillus reuteri in the mechanical treatment of peri-implant mucositis. This study aims to include 32 subjects with implant-supported total rehabilitation and peri-implant mucositis, divided into test and control groups, equally subjected to professional mechanical debridement, with the administration of a daily GUM® PerioBalance® lozenge for 30 days added to the test group. Plaque Index, Bleeding Index and probing pocket depth are evaluated before the intervention (baseline) and at 6 and 10 weeks later.
The purpose of this study is to evaluate if milvexian is at least as effective as apixaban for reducing the risk of the composite stroke and non-central nervous system (CNS) systemic embolism.
The goal of this randomized trial is to examine the effects of a body-oriented intervention program on preschoolers' social-emotional competence. The main question it aims to answer are: does OUT to IN effectively promotes preschoolers' self-awareness, self-regulation, relationship skills and motor competence? Participants are children between 3 and 6 years from portuguese preschools. The inclusion criteria are (a) participants' age between 3 and 6 years, (b) do not have participated in a similar intervention program within the last 6 months, and (c) do not have a physical condition that can affect the participation in the program. Children will be randomly allocated to the experimental group (who will participate in a 10-week intervention program with biweekly sessions of psychomotricity implemented outdoors) and to the control group (who will maintain their usual routines).
The purpose of this study is to evaluate that milvexian is superior to placebo, in addition to standard-of-care, in reducing the risk of major adverse cardiovascular event (MACE) (the composite of cardiovascular [CV] death, myocardial infarction [MI], and ischemic stroke).
A migraine is a moderate to severe headache on one side of the head that may be accompanied by throbbing, nausea, vomiting, sensitivity to light and sound, or other symptoms. The main goal of the study is to evaluate the tolerability (how patients handle the study treatment) and safety of atogepant compared to topiramate in participants with migraine. Atogepant is a medicine currently approved for the preventive treatment of adult patients with episodic migraine (0 to 14 migraine days per month) and is being studied for the preventative treatment of migraine globally. Topiramate is an approved medication for migraine prevention. This study is conducted in 2 periods. In Period 1, participants will be randomly put into 1 of 2 groups at the start of the study to receive atogepant or topiramate. In Period 2, eligible participants will receive atogepant. Approximately 520 participants aged 18 and older will be enrolled in this study in approximately 85 sites across the world. Participants will receive atogepant (and placebo for topiramate) or topiramate (and placebo for atogepant) for 24 weeks in Period 1. Both atogepant and placebo for atogepant are given as a tablet to take by mouth while topiramate and placebo for topiramate are given as a capsule to take by mouth. After 24 weeks, all eligible participants will receive atogepant for 52 weeks in Period 2. Participants are monitored for safety for 4 weeks after their last study treatment. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic. The safety and tolerability of the treatment will be checked by medical assessments, blood tests, checking for adverse events and completing questionnaires.
The goal of this clinical trial is to test the efficacy of a blended format (i.e., a combination of face-to-face and online sessions into one integrated treatment protocol) of the Unified Protocol for Transdiagnostic Treatment of Emotional Disorders in Children (UP-C) in a sample of children aged between 7 and 12 years with a primary diagnosis of an anxiety disorder or with clinically significant levels of anxiety. The main questions it aims to answer are: - Is the proposed intervention (named Emotion Detectives In-Out) feasible and acceptable among Portuguese children with anxiety disorders and their parents? - Is the Emotion Detectives In-Out intervention as effective as an evidence-based intervention for children's anxiety disorders in reducing anxiety symptomatology and changing secondary outcomes? - What are the key predictors of adherence to the Emotion Detectives In-Out intervention? - What are the key predictors of treatment outcomes? Participants (children and one parent/legal representative) will: - Participate in an initial interview with a clinical psychologist, who will assess if children and parents meet eligibility criteria. - Complete an assessment protocol before, during, and after the intervention, as well as three months later. - Be randomly assigned to one of the two conditions: experimental (Emotion Detectives In-Out) or active control (Coping Cat). - Participate in one of the two psychological interventions. Researchers will compare the experimental and control groups to see if the Emotion Detectives In-Out intervention is equally efficacious as the Coping Cat intervention.
The goal of this observational study is to analyse and compare Diabetic Retinopathy severity level using 30º ETDRS 7-fields and Wide-field Imaging techniques using Clarus 500 (Carl Zeiss Meditech Inc., Dublin, USA) and Optos (Optos, Dunfermline, UK) in diabetic patients with mild to moderate diabetic retinopathy. The main questions it aims to answer are: 1. To compare the Clarus 500TM wide-field imaging technique with the ETDRS 7-fields method in the assessment of DR severity level using the ETDRS DRSS.2. To compare the two wide-field imaging techniques (Clarus 500TM vs OptosTM) in the assessment of DR severity level using the ETDRS DRSS.3. To evaluate the peripheral area imaged by the wide-field Clarus 500TM and OptosTM to characterize DR lesions distribution (predominantly observed within or outside the ETDRS 7-fields) and severity (according to the ETDRS standard photos).4. To determine the relevance and frequency of DR PPL, located outside the ETDRS 7-fields area, and to explore PPL occurrence in different DR severity levels. Participants will undergo a non-invasive ophthalmological examination, which includes BCVA, 7-fields CFP and UWF FP to assess ETDRS DRSS level.
The hypothesis to be tested by this study is that an intervention promoting adherence to the MedDiet can decrease symptoms of depression in patients with elevated inflammation biomarkers, namely C-reactive protein (CRP) and Interleukin 6 (IL-6) diagnosed with Major Depression Disorder (MDD), under treatment with antidepressant medication for a period of time less than or equal to 6 months. The main aim of this study is to understand if promoting the adherence to the MedDiet, as an adjuvant strategy in the treatment of MDD, is effective in decreasing symptoms of depression in MDD patients, with elevated levels of inflammation biomarkers. Other specific objectives of the study are 1. To assess the association between adherence to MedDiet and changes in inflammatory biomarkers; 2. To assess the association between changes in inflammatory biomarkers with symptoms of MDD; 3. To evaluate the association between adherence to MedDiet and effectiveness of psychiatric treatment of MDD; 4. To characterize the association between adherence to MedDiet and changes in health-related quality of life 5. To evaluate the economic cost-effectiveness of dietary counselling, as an adjuvant treatment in MDD. The study will have a duration of 12 weeks, with a randomized parallel-group open controlled trial design, with two parallel groups with an allocation ratio of 1:1 - (a) intervention arm with six nutritional consultations with a registered nutritionist, promoting adherence to MedDiet, in addition to MDD Treatment-As-Usual (TAU) and (b) control group arm benefitting only from MDD TAU. A follow up assessment will be performed at 6- and 12-months. Having into consideration an attrition of 40 percentage at the end of the intervention, the minimum sample size estimated is 190 (95 per arm). The main outcome of the trial, changes in symptoms of depression, will be evaluated using the Beck Depression Inventory Second Edition (BDI-II).