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.
Vasculitis is group of diseases where inflammation of blood vessels is the common feature. Patients typically present with fever, fatigue, weakness and muscle and joint aches. These symptoms are very common among many different diseases, not just vasculitis. A clustering of other symptoms, physical examination findings, blood tests, radiology and biopsy help make the diagnosis. There are currently no criteria to help doctors make a diagnosis of vasculitis when a patient presents with these non specific symptoms and they are reliant on previous experience and disease definitions. One of the aims of this project is to develop diagnostic criteria for the primary systemic vasculitides (granulomatosis with polyangiitis (Wegener's), microscopic polyangiitis, Churg Strauss syndrome, polyarteritis nodosa, giant cell arteritis, Takayasu arteritis). We, the investigators, will do this by studying a large group of patients with vasculitis and comparing them to a large group of patients that present in a similar way, but do not have vasculitis. By comparing the 2 groups we will create a list of items to differentiate between vasculitis and 'vasculitis mimics'. We also aim to update the current classification criteria. Classification criteria are used to group patients into different types of vasculitis, once a diagnosis of vasculitis has been made, and are useful for studying patients in clinical trials with similar or identical diseases. The current classification criteria (American college of Rheumatology 1990 criteria) were developed 20 years ago, before the availability of some important diagnostic tests (e.g. antineutrophil cytoplasmic antibodies [ANCA]), and are now not consistent with some of the current disease definitions. Therefore to progress future research in vasculitis, it is important that the classification criteria are updated. We will recruit 260 patients with each of the 6 types of vasculitis and compare them with 1300 controls (patients with the 5 other types of vasculitis), in order to determine the optimal combination of symptoms, signs and investigations that classify each person into the appropriate group.
This study will assess the safety and efficacy of different doses of sotrastaurin when combined with tacrolimus for the prevention of acute rejection after de novo renal transplantation.
This study is to provide reliable information on the management of bipolar disorders in real every day, clinical practice, to determine the clinical outcomes of such management and use of resources in relation to the disease, and to establish the factors associated with different management patterns and clinical outcomes.
Primary Objectives: Part A (dose ranging study): To demonstrate that sarilumab (SAR153191/REGN88) on top of MTX was effective on reduction of signs and symptoms of rheumatoid arthritis at 12 weeks. Part B (pivotal study): To demonstrate that sarilumab added to MTX was effective in: - reduction of signs and symptoms of rheumatoid arthritis at 24 weeks - inhibition of progression of structural damage at 52 weeks - improvement in physical function at 16 weeks Secondary Objectives: Part B: To demonstrate that sarilumab added to MTX was effective in induction of a major clinical response at 52 weeks To assess the safety of sarilumab added to MTX To document the pharmacokinetic profile of sarilumab added to MTX in participants with active rheumatoid arthritis who were inadequate responders to MTX therapy.
This study will assess the efficacy and safety of nilotinib in adult patients with newly diagnosed Philadelphia chromosome positive/BCR-ABL positive chronic myeloid leukaemia in chronic phase. The aim of the study is to confirm the rates of complete molecular remission (CMR) of nilotinib in newly diagnosed CML chronic phase patients in a pan-European population using the EUTOS standardized laboratories.
This purpose of this study is to assess the safety of ustekinumab in psoriasis patients who receive ustekinumab following an inadequate response to methotrexate therapy. The study will provide information for doctors on how to manage the transfer from methotrexate to the biologic agent ustekinumab. The study is designed to compare two methods of transferring patients from methotrexate to ustekinumab. The two methods being compared are discontinuation of methotrexate with immediate initiation of ustekinumab versus initiation of ustekinumab with overlap and gradual dose reduction of methotrexate over 4 weeks.
Prevention of invasive fungal infection in high risk patients following liver transplant.
This randomized, open-label, parallel group study will assess the effect on response rate and the safety of MabThera added to either bendamustine or chlorambucil in patients with chronic lymphocytic leukemia. Patients will be randomized to receive six 4-week cycles of either A) MabThera (375mg/m2 iv day 1 of cycle 1, 500mg/m2 iv cycles 2-6) plus bendamustine (90mg/m2 as first-line or 70mg/m2 as second-line therapy, iv on days 1 and 2, cycles 1-6), or B)MabThera plus chlorambucil (10mg/m2 po daily, days 1-7, cycles 1-6). Patients in group B can receive up to 6 further cycles of chlorambucil as monotherapy. Anticipated time on study treatment is 6-12 months, and target sample size is 600-700 individuals.
This is an open-label extension study intended for subjects who have previously completed study A0221045 (fesoterodine in elderly OAB patients) and who have been recommended by the investigator as being suitable for the extended use of Fesoterodine. Data from this study will extend the evaluation of efficacy, tolerability and safety of Fesoterodine in older subjects from Portugal.
Children and adolescents with chronic kidney disease (CKD) are at high risk for cardiovascular (CV) morbidity and mortality. Recent studies suggest that pediatric patients with even moderately impaired kidney function may be afflicted with significant early cardiac and vascular abnormalities. The pathogenesis and the natural course of CV comorbidity in pediatric CKD patients is still elusive. In this multicenter, prospective, observational study the prevalence, degree and progression of CV comorbidity in children will be characterized and related to CKD progression. The morphology and function of the heart and vessels will be monitored by sensitive, non-invasive methods and will be compared with aged matched healthy controls. Multiple potential clinical, anthropometric, biochemical, and pharmacological risk factors will be monitored prospectively and will be related to CV status. Genotyping might identify predisposing genetic factors for progression of CV comorbidity and underlying nephropathies.