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 study aims at evaluating the maintenance of virologic suppression of dolutegravir/lamivudine (DTG/3TC) fixed dose combination (FDC) at Week 48 post-switch from bictegravir/emtricitabine/tenofovir alafenamide (BIC/FTC/TAF) in participants living with Human Immunodeficiency Virus Type 1 (HIV-1) who are of at least 50 years of age and above.
There is an increased lack of short- and long-term real-life effectiveness and safety data on new oral antivirals authorised and commercialised to treat COVID-19. To date, only two clinical trials have been published with data on the efficacy and safety of the use of the Paxlovid® and Lagevrio®. Since there is a public health, political, social and economic pressure to prevent severity, hospitalisation and death from COVID-19, monitoring the effectiveness and safety of commercialised oral antiviral therapies against COVID-19 has become emergent pharmacovigilance and public health task. The objective of the study is to monitor the post-marketing safety and effectiveness of the new oral antivirals indicated for the treatment of COVID-19, namely Nirmatrelvir/Ritonavir (Paxlovid®) and Molnupiravir (Lagevrio®), having as holders of the Authorization of Market introduction to Pfizer Europe MA EEIG and Merck Sharp & Dohme B.V., respectively.
The purpose of this study is to identify ocular biomarkers that can predict the success of phacoemulsification with bilateral AT LISA try 839MP (Carl Zeiss Meditec AG) implantation to achieve satisfactory post-post-operativly spectacle-free vision. Social, biometric and patient reported outcomes will be evaluated.
The goal of this prospective multicentric study is to evaluate the presence of long-term pulmonary sequelae in patients who had required hospitalization for treating COVID-19 pneumonia, trough chest CT and pulmonary function tests (PFT). Secondly we would like to evaluate the possible correlation between the chest CT findings and pulmonary function tests pre-existing co-morbidities and type of therapy used during hospitalization.
A total of 18 military pilots in their tirocinium in the air force academy from the Portuguese Air Force course "Masters in Military Aeronautics: aviator pilot specialist" participated in this study. Participants were randomly assigned to yoga (intervention group) or waiting list (control group). Procedures were approved by the Évora University research ethics committee and participants will give written informed consent according to the Helsinki declaration (approval number: 21050).
This study is investigating the safety and efficacy of eneboparatide (AZP-3601) in patients with chronic hypoparathyroidism (cHP). During the first 24 weeks of the trial, participants will be randomized to receive eneboparatide or placebo. Study treatment is blinded: patients and doctors will not know which group each patient has been randomized to. All patients will start with a fixed dose of study treatment (eneboparatide or placebo), administered subcutaneously with a pre-filled pen. Study treatment will be individually titrated. After completion of the first 24 weeks, patients will be treated in the open label extension part of the study for 28 weeks. During this phase, all patients (including patients that were in the placebo group) will receive eneboparatide.
The aim of this study is to determine whether the fasting duration required for patients after consuming oral jelly is comparable to that after consuming water, prior to elective surgery. International guidelines for perioperative fasting recommend abstaining from clear fluids for 2 hours to minimize the risk of regurgitation and aspiration pneumonia. However, there are no specific recommendations regarding the perioperative management of jelly consumption. Current understanding emphasizes the benefits of minimizing preoperative fasting time, including preventing dehydration and metabolic complications like ketoacidosis, as well as potentially enhancing patient satisfaction. Oral jelly consumption may offer advantages by improving preoperative hydration and providing some nutritional support prior to procedures. This crossover study will involve 25 adult volunteers. In the first phase, participants will be randomly assigned to either oral intake of water or jelly, followed by the opposite intervention in the second phase. Gastric content and volume will be assessed using gastric ultrasound.
The purpose of the present study is to assess the efficacy of secukinumab 300 mg s.c. (subcutaneous) compared to placebo, each in combination with standard of care, in improving signs, symptoms and physical function in participants with moderate to severe rotator cuff tendinopathy (RCT), using a randomized, double-blind, placebo controlled, parallel group design to minimize bias.
The main purpose of this study is to measure the efficacy (Myeloma response) of subcutaneous (SC) isatuximab treatment in combination with carfilzomib and dexamethasone in adult participants with RRMM having received 1 to 3 prior lines of therapy. After confirmation of the feasibility of SC isatuximab by manual administration, patient will be randomized to 1 of the 2 delivery methods of SC isatuximab.
This is a multicentre retrospective and prospective cohort study with the goal to develop a well-characterised multimodal image database of eyes with intermediate AMD with and without early atrophy. The main objectives are: 1. Develop a collaborative well-characterised database on intermediate AMD with or without early atrophy. 2. Grading of these images to explore imaging markers of progression. 3. Develop predictive models as a secondary analysis of our dataset. This study will recruit around 1.000 eyes in 6 months. All consenting patients who have had at least 3 clinic visits with multimodal imaging done at least at 6 months interval between 2 visits and meet the inclusion and exclusion criteria will be included in the study for retrospective data collection. Those with one visit remaining to complete 2 years, images will be acquired prospectively. In addition to the images, routine demographic data (age and sex) and available visual acuity (VA) (BCVA if possible, VA with Pinhole or VA with patient's glasses) will be collected. Multimodal imaging includes mandated macular OCT with or without enhanced depth imaging and infrared imaging. Fundus autofluorescence (AF) and multicolor imaging are optional. All imaging must be done on Heidelberg Spectralis system.