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 this study is to evaluate the effects of cinacalcet on markers of bone turnover in patients with kidney disease who are receiving dialysis.
Primary Objective: - Phase II: To determine the best treatment scheme (TPF vs. PF). - Phase III: To compare the time to progression and the treatment failure at the 3 arms. Secondary objectives: - To evaluate the safety at the 3 arms. - To compare the progression , overall survival and locoregional control at the 3 arms.
This is a 24-week study to determine the lipid metabolic effects, safety, and tolerability of tesaglitazar compared with metformin and metformin in combination with fenofibrate in patients with type 2 diabetes and low high-density lipoprotein cholesterol (HDL-C). Improvement in dyslipidemia will be evaluated. The study comprises a 2-week enrollment period, 6-week run-in and a 24-week randomized, double blind, parallel group, multi-center, active controlled (metformin with or without fenofibrate) treatment period and a 3-week follow-up. From visit 2 (run-in), all patients will receive a standardized dose of statin (rosuvastatin)
The purpose of this research study is to compare the efficacy of aripiprazole with placebo in combination with lithium or valproate monotherapy, in the treatment of bipolar I patients with manic or mixed episodes.
The purpose of this study is to determine the efficacy of anastrozole monotherapy versus maximal oestrogen blockade with combinated therapy of fulvestrant and anastrozole compared with in treatment of hormone receptor positive women with first relapse of breast cancer.
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.
This is a long-term safety follow-up study to assess the post-treatment safety, at 12 and 24 months, in patients with type 2 diabetes after participation in the phaseII/III studies GALLANT, GALLEX and ARMOR. In addition, selected patients, including those with pre-defined laboratory or clinical findings, will have a 12-week post-treatment follow-up visit, including laboratory evaluation and adverse event recording.
The purpose of this study is to compare the changes in a proliferation biomarker in subjects receiving Anastrozole or Anastrozole/ZD1839 combination.
To assess the efficacy and safety of PF-3512676 administered in combination with gemcitabine/cisplatin chemotherapy as first-line treatment in patients with locally advanced or metastatic Non-Small-Cell Lung Cancer (NSCLC) and to compare it to the efficacy and safety of gemcitabine/cisplatin alone.
To assess the efficacy and safety of PF-3512676 administered in combination with paclitaxel/carboplatin chemotherapy as first-line treatment in patients with locally advanced or metastatic Non-Small-Cell Lung Cancer (NSCLC) and to compare it to the efficacy and safety of paclitaxel