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.
It is difficult to obtain patient's compliance with regular interproximal dental hygiene. Dental floss is recognized as an effective procedure to remove dental plaque and prevent gingivitis in the space between teeth, but it is difficult to use and most patients do no do it regularly. Essential oils mouthrinse acts on dental plaque bacteria and helps on gingivitis prevention. These properties may be of interest to control dental plaque accumulation and gingivitis in interproximal areas. The study hypothesis states that there are no differences between the use of an essential oils mouthrinse and dental floss on the reduction of dental plaque accumulation and gingivitis.
The use of mouthrinses may be of relevance as a complement to daily dental hygiene procedures, especially for patients who do not comply with a proper mechanical removal of dental plaque. Essential oils and delmopinol mouthrinses are effective to reduce dental plaque accumulation and gingivitis. Also an effect on dental bacteria can be found. The study hypothesis states that there are no differences between the mouthrinses on the reduction of gingivitis and dental plaque accumulation as well on the bacterial counts of Streptococcus mutans, Lactobacillus, aerobic and anaerobic bacteria.
The purpose of this study is to describe long term (> 96 weeks) efficacy and safety of Atazanavir-based regimens in real life setting.
This is an observational survey to assess the factors that influence adherence to Betaferon therapy in multiple sclerosis patients using elements of the BetaPlus support program, including the nurse support and auto-injectors. The patients were evaluated under normal clinical practice and were asked to fill out the quality of life FAMS questionnaire, Coping processes (WCQ) and depression questionnaire CES-D.
This study is a large observational study, set-up to observe how long-term treatment with FIRMAGON (hormone regulator) compare to other treatments in regards to cardiovascular events, changes in bone density, changes in blood sugar levels or liver enzyme levels in subjects with prostate cancer. Subjects will be treated according to their routine clinical care and not dictated by the study. As the study is observational in nature, the study will collect data relating to the events specified above. Subjects that agree to this study will be followed-up for 5 years. Subject data will be collected every 3 months for the first 2 years and every 6 months for the last 3 years.
This is an observational survey to assess the factors that influence adherence to Betaferon therapy in multiple sclerosis patients using elements of the BetaPlus support program, including the nurse support and auto-injectors. The patients were evaluated under normal clinical practice and were asked to fill out the quality of life FAMS questionnaire, Coping processes (WCQ - Ways of Coping Questionnaire) and depression questionnaire CES-D.
The purpose of this study is to characterize type 2 diabetic patients with initial alterations of diabetic retinopathy (DR) based on 3 different phenotypes previously identified and different patterns of progression in order to correlate this data with genetic information.
Parkinson's disease (PD) is a neurodegenerative disorder of unknown aetiology with an estimated incidence of 4.5-16/100,000 persons/year. BIA 9-1067 is currently being developed by BIAL (Portela & Cª,S.A.) to be used in addition to L-DOPA (Levodopa) /carbidopa or L-DOPA (Levodopa) / preparations in PD patients. Promising results have been obtained for BIA 9-1067 in previous studies.
This multi-center, randomized, double-blind, placebo-controlled parallel-group study will evaluate the effect of gantenerumab (RO4909832) on cognition and functioning and the safety and pharmacokinetics in participants with prodromal Alzheimer's Disease. Participants will be randomized to receive subcutaneous (SC) injections of either gantenerumab or placebo. Participants who consent to be part of the sub study will undergo positron emission tomography (PET) scanning to assess brain amyloid. The anticipated time on study treatment is 104 weeks in Part 1, with an option for an additional up to 2 years of treatment in Part 2, followed by an open-label extension (Part 3) until July 2020. The dosing for Parts 1 and 2 was stopped after a planned futility interim analysis showed a low probability of meeting the primary outcome measure with the doses studied. The study has converted to open-label to investigate higher gantenerumab doses.
The purpose of this study is to identify alterations of the blood-retinal barrier (BRB) in diabetic retinas using a novel non-invasive approach based on the Fourier domain high-definition optical coherence tomograph (OCT).