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.
Pain due to peripheral nerve lesion remains extremely difficult to treat and current treatments have onl moderate efficacy and/or side effects. The investigators have previously demonstrated the long term efficacy of Botulinum toxin type A (BTX-A) in a small group of patients with post-traumatic/postherpetic neuralgia and allodynia. The present study aims to a/ confirm the efficacy of repeated applications of BTX-A in a larger group of patients with peripheral neuropathic pain with or without allodynia(primary outcome) ; b/ evaluate its mechanisms of action ; c/analyse the predictors of response ;d/analyse whether the second injection is associated with a therapeutic gain. This will be a randomized placebo controlled study. A total of 30 patients will be randomized to receive either BTX-A (subcutaneous injection in the painful area) or placebo. Each injection will be repeated within at least 3 months depending on the duration of efficacy. Skin punch biopsies will be performed before and 1 month after BTX-A administration. The investigators postulate that this study will confirm the clinical efficacy and good safety of repeated administrations of BTX-A in the treatment of peripheral neuropathic pain.
Type 2 diabetes mellitus (T2DM) is a relevant public health problem and obesity has been associated as the major risk factor. Roux-en-Y gastric bypass is an effective method to treat severe obesity, and its metabolic benefits can lead to early and complete remission of T2DM, even before a considerable weight loss. We have hypothesized that intestinal anatomic changes may change intestinal genes expression related to glycemic control. The knowledge of mechanisms mediating the glycemic control after Roux-en-Y gastric bypass and it site of action in bowel may eventually help to develop alternative, less invasive and safer surgery for the treatment of T2DM, as well as drug development for the newly targets identified.
The purpose of this study is to determine inspiratory muscle training effects on blood pressure, functional capacity and quality of life in hypertensive patients.
This randomized, open-label, parallel-group study will assess the efficacy and s afety of Avastin (bevacizumab) in combination with chemotherapy versus chemother apy alone as second- and third-line therapy in patients with locally recurrent o r metastatic breast cancer progressing after first-line therapy with Avastin and chemotherapy. Patients will be randomized to receive either Avastin (15 mg/kg e very 3 weeks or 10 mg/kg every 2 weeks intravenously) plus standard chemotherapy or chemotherapy alone. Anticipated time on study treatment is until third-line disease progression or unacceptable toxicity occurs.
The main problem of ocular surface reconstruction is the lack of viable conjunctival tissue. The use of a biocompatible latex biomembrane in ocular surface healing, like post pterygium surgery, could be an alternative therapeutic resource to this process.
E-learning material increases the student knowledge level before the traditional class of blindness prevention and help to fix this information a short period (one month) after the class.
The primary objective of this study is to assess the efficacy of nimotuzumab in combination with chemotherapy and radiotherapy for the treatment of locally advanced esophageal cancer, comparing it to that of the conventional treatment with radiation and chemotherapy. The secondary objective of this study is to assess the health-related quality of life for the nimotuzumab in combination with chemotherapy and radiotherapy regimen, compared to the standard chemoradiation regimen in the treatment of inoperable locally advanced esophageal cancer.
Sixty subjects will take part in this study. The subjects will be randomly assigned in a 1:1 ratio between the two arms of study. (Group A: Solution of Luffa Nasal Operculate 5mg/mL, Group B: saline). The subjects will use the study medication or comparative, according to their randomization, for a treatment period of 3 to 7 days. A follow-up visit will be made 15 days after initiation of treatment.
This randomized, double-blind, double-dummy, parallel-group study will evaluate the efficacy and safety of ocrelizumab in comparison with interferon beta-1a (Rebif) in participants with relapsing multiple sclerosis. Participants will be randomized to receive either ocrelizumab 600 mg or matching placebo intravenous (IV) as 300 mg infusions on Days 1 and 15 for the first dose and as a single infusion of 600 mg for all subsequent infusions every 24 weeks, with placebo injections matching interferon beta-1a SC three times per week; or interferon beta-1a 44 mcg SC injections three times per week (with placebo infusions matching ocrelizumab infusions every 24 weeks). Planned duration of double-blind treatment is 96 weeks. Participants who complete the 96-week double-blind treatment will have an option to enter a single-group, active-treatment, open-label extension period, providing they fulfill the eligibility criteria.
Urinary lithiasis is a common disease on young adults, but not so far on aging people. Nowadays, the investigators are seeing a gradative growth on men above sixty years old, mainly in industrialized countries. The purpose of this study is to investigate metabolic aspects of aging men with renal stones, towards blood tests, 24 hour-urinary samples, imagenological exams and bone densitometry. The investigators have made a case-control model.