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 purpose of the study is to compare the efficacy of a flexible dose of Symbicort with conventional stepwise treatment according to asthma treatment guidelines in patients with persistent asthma
This is an observational study to monitor the continued effectiveness of Ventavis (inhaled iloprost) in the long-term. The study observes the effects and the safety of Ventavis inhalation therapy over at least 2 years and up to 4 years. A total of 54 patients from around 30 study sites in Europe will be included in the study. This observational study will collect information in patients receiving a medication that is already available on prescription in the participating countries. Ventavis is used to treat moderate cases of primary pulmonary hypertension.
The purpose of the study is to evaluate the efficacy and safety of saredutant (or SR48968C) in patients with depression. The primary objective is to evaluate the efficacy of a 100 mg dose of saredutant compared to placebo in patients with depression. The secondary objectives are to evaluate the safety of saredutant, to evaluate the efficacy of saredutant on disability and quality of life in patients with depression, and to evaluate blood levels of saredutant.
The purpose of this study is to determine if the combination of clopidogrel 75mg once daily (od) plus aspirin 100mg daily (recommended dose) is better than aspirin alone (100mg daily recommended dose) for preventing vascular events such as stroke and heart attack during approximately three years of follow-up in patients with atrial fibrillation associated with at least one major risk factor of vascular event such as elderly, blood pressure increase, history of stroke or transient ischemic attack or left ventricular dysfunction etc. The study will also accept patients with atrial fibrillation and unwilling to take oral anticoagulant therapy.
The purpose of this study was to determine if Irbesartan compared to Placebo would reduce the risk of vascular events such as heart attack, stroke, non-cerebral thromboembolic event and death in patients with Atrial Fibrillation (AF) and with at least one major risk of vascular events.
The purpose of the study was to compare the efficacy of 2 different Etanercept regimens for the treatment of skin and joint manifestations of psoriatic arthritis.
The purpose of this study is to compare the efficacy of Faslodex (fulvestrant) to Nolvadex (tamoxifen) as first-line treatment for postmenopausal women with advanced breast cancer. Patients will be treated until disease progression or until the investigator has determined that treatment is not in the best interest of the patient, whichever occurs first.
Evaluate whether the effect of inhaled tiotropium bromide on the change in trough forced expiratory volume (FEV1), compared to placebo in patients with chronic obstructive pulmonary disease (COPD), is affected by smoking status.
The purpose of this clinical research study is to evaluate if Aripiprazole will prove to be effective, safe and well tolerated in the treatment of patients with schizophrenia who are treated in a general psychiatric setting.
The purpose of this observational study was to observe and assess the long term use, safety, and effectiveness of adalimumab in a normal clinical setting.