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.
Observation of humoral and cellular immune response after additional dose vaccine with different COVID-19 vaccines in ESKD patients in hemodialysis therapy.
All participants who completed the prior study to assess long-term safety, tolerability, pharmacokinetics and efficacy, and in the opinion of the investigator, continue to have a positive risk:benefit profile, will be offered to enroll in this open-label extension (OLE) study for up to an additional 24 months of treatment. Approximately 63 participants will be offered to continue at the previously received dose of Recifercept either Low Dose Medium Dose High Dose or at the therapeutic dose once it is identified. Participants will attend the clinic monthly for 24 months. Assessments include safety, blood sampling, physical examination, vital signs, anthropometric body measurements & patient/caregiver quality of life questionnaires.
Crohn's disease (CD) is a long-lasting condition causing inflammation that can affect any part of the gut. CD may cause tiredness, loose stools with or without bleeding, abdominal pain, weight loss, and fever. This study evaluates how safe and effective ABBV-154 is in participants treated for moderately to severely active CD. Adverse events and change in the disease activity will be assessed. ABBV-154 is an investigational drug being evaluated for the treatment of CD. In the induction period, there is a 1 in 5 chance that participants will be assigned to placebo. Depending on the dose received in the induction period, there is a 1 in 2 or 1 in 3 chance that participants will be assigned to placebo in the maintenance period. Around 265 participants 18-75 years of age with moderately to severely active CD will be enrolled in the study at approximately 200 sites worldwide. The study is compromised of a 12-week double-blind, placebo-controlled induction period, followed by either a 12-week double-blind re-induction period for non-responders or a 40-week double-blind placebo-controlled maintenance period for responders. In the maintenance period, responders will be randomized to receive subcutaneous placebo or ABBV-154 in 2 different doses every other week. Participants in the placebo group who are initial responders will receive ABBV-154 in the maintenance period. There may be higher treatment burden for participants in this trial compared to their standard of care due to study procedures. Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.
Head and Neck Squamous Cell Carcinoma (HNSCC) is the 6th most common cancer. Most cases are diagnosed in locally advanced stages, with treatment involving multimodal approach with combinations of radiotherapy, surgery and chemotherapy. The aggressive nature of HNSCCs and treatment modalities are associated with important acute and late toxicities that often promote temporary or definitive treatment interruption and may compromised the capability to tolerate subsequent treatments. Thus, the aim of this study is to analyze the acute and long-term impact of cancer treatment on quality of life, physical and cognitive function of HNSCC patients diagnosed with a locally advanced disease.
The purpose of the study is to evaluate the efficacy of cobitolimod treatment compared to placebo in inducing clinical remission, in participants with moderate to severe active left-sided UC and to evaluate the efficacy of cobitolimod maintenance treatment compared to placebo in inducing or maintaining clinical remission at week 52, in participants with clinical response at week 6 after induction treatment with cobitolimod.
The overall objective of this post market clinical follow-up (PMCF) investigation is to follow the progress of exuding chronic wounds to healing, or up to 12 weeks, whichever occurs first, consecutively using Exufiber® as primary dressing, and Mepilex® Border Flex (Mepilex Border Comfort) as primary dressing.
The purpose of this study is to assess the effect of reldesemtiv versus placebo on functional outcomes in ALS.
The purpose of this study was to evaluate the efficacy of GSK3640254 + DTG relative to lamivudine (3TC) + DTG in treatment-naïve adult participants living with human immunodeficiency virus (HIV)-1. The participants were randomized to one of the three doses of blinded GSK3640254 (100, 150, or 200 milligrams [mgs]) or a reference arm of blinded 3TC-each in combination with open label DTG.
EU SolidAct is a randomized, multifactorial, adaptive platform trial for COVID-19 and emerging infectious diseases and pandemics. The purpose of this study is to evaluate the effect of a range of interventions to improve outcome of patients admitted to hospital with COVID-19. The platform is designed for running phase 2 and phase 3 trials, and with modular data capture (end point/safety data, biobanking, add-on studies) depending on the capacity of participating sites. The study consists of two parts with different primary end points depending on disease stage: EU SolidAct part A includes hospitalized patients with moderate disease, whereas EU SolidAct part B includes hospitalized patients with severe and critical disease.
This study will evaluate the efficacy, safety, antiviral activity, and pharmacokinetics of study drug RO7496998 (AT-527) compared to placebo in non-hospitalized adult and adolescent participants with mild to moderate coronavirus disease 2019 (COVID-19) in the outpatient setting.