There are about 10004 clinical studies being (or have been) conducted in Brazil. 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 study objective is to evaluate the effect that sildenafil citrate has on the hardness of erections in males with erectile dysfunction, based on subject responses to question 5 on the Event Log (hardness of erection) as measured at the end of double blind treatment (week 6).
Open label extension study to the pivotal efficacy study to assess the safety of sildenafil citrate in patients with pulmonary arterial hypertension
Active treatment, dose-blinded extension study evaluating the safety and long term efficacy of sildenafil citrate in children with PAH.
Genital herpes (GH) is a commonly occurring sexually transmitted disease caused by herpes simplex virus (HSV). There are two types of HSV, type 1 (HSV-1) and type 2 (HSV-2); both can cause GH, although the latter is much more likely to produce frequent recurrences of GH lesions. Evidence suggests that there are advantages to using suppressive vs. episodic treatment, which include increased intervals between the pain and discomfort of genital herpes recurrences. Therefore, this study will collect safety and efficacy data on suppressive therapy with valaciclovir in subjects newly diagnosed with HSV-2 genital herpes.
A study of pregabalin efficacy and safety in a racially and culturally diverse group of subjects with painful diabetic peripheral neuropathy (DPN).
This study looks at immediate treatment of a cervix with CIN 1 versus regular six-month follow-up with colposcopy and treatment if CIN 1 progresses.
Drugs used against cancer work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Monoclonal antibodies, such as cetuximab, can block tumor growth in different ways. Giving combination chemotherapy together with cetuximab as first treatment after diagnosis of a metastatic colorectal cancer ('1st-line' treatment) may improve the treatment efficacy. However, it is not yet known whether giving combination chemotherapy together with cetuximab is more effective than combination chemotherapy alone. This open-label trial investigates the effectiveness of cetuximab in combination with a standard and effective chemotherapy (5-Fluorouracil (5FU)/Folinic acid (FA) plus irinotecan) for metastatic colorectal cancer in first-line setting, compared to the same chemotherapy alone on patient expressing the epidermal growth factor (EGF) receptor. Patients expressing this EGF Receptor will be randomly assign in one of the 2 groups to either receive the combination chemotherapy alone or with cetuximab (open-label study) and will then be treated until progression of the disease or unacceptable toxicity occur. Regular efficacy assessments (every 8 weeks) based on imaging will be performed throughout the study together with regular safety assessments (e.g. safety labs). An independent Safety Board of experts will also monitor safety data. After participant discontinuation from the trial, regular updates on further treatments and survival status will be requested from the investigator. The entire study (from the first patient entering the study to the last collect of follow-up information) is 4-5 years long.
The Ongoing Telmisartan Alone and in combination wiht Ramipril Global Endpoint trial (ONTARGET): The primary objectives are to determine if (a) telmisartan 80mg daily and ramipril 10mg daily combination therapy is more effective in reducing the composite endpoint of Cardiovascular Death (CV) death, Myocardial infarction (MI), stroke or hospitalization for Congestive Heart Failure (CHF) compared with ramipril 10mg alone; and (b) telmisartan 80mg daily is at least as effective as (i.e. not less effective than) ramipril 10mg daily, on this endpoint. Telmisartan Randomised Assessment Study in Angiotension converting Enzyme inhibitor intolerant subjects with Cardiovascular Disease. (TRANSCEND): The primary objective of the study is to determine if treatment with telmisartan 80mg daily is superior to placebo reducing the composite endpoint of Cardiovascular Death (CV), Myocardial Infarction ( MI)I, stroke or hospitalization for Congestive Heart Failure (CHF) in patients who are intolerant to Angiotension Converting Enzyme inhibitors.
The purpose of the trial is to determine if extended-release dipyridamole + aspirin [Aggrenox, Asasa ntin] is superior to clopidogrel [Plavix], and if telmisartan [Micardis, Gliosartan, Kinzal, Kinzalm ono, Predxal, Pritor, Samertan, Telmisartan] is superior to placebo, in the presence of background antihypertensive therapy, in prevention of a second stroke in patients who have recently suffered a stroke and therefore are at high risk of suffering another one.
To allow pediatric patients with partial onset seizures an opportunity to receive (as follow-up to studies N01009(NCT00105040)/N01103(NCT00175890) or by direct enrollment) open-label levetiracetam treatment, continue studying cognition and behavior in children, and continue collection of safety/efficacy data.