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 purpose of this study is to determine whether autologous bone marrow-derived stem cells are effective in the treatment of lower extremity ischemia.
This study was done to look at a method of hormonal birth control, called the NuvaRing, and specific anti-HIV medications, called antiretrovirals (ARVs). Some studies of women who use a hormonal birth control method (specifically oral pills, patches, and injections) and take ARVs have shown that ARVs interact with the hormones released by the birth control medication. These interactions may cause the birth control to be less effective at preventing pregnancy. There is also concern that hormonal birth control can increase HIV spreading to others, but more studies are needed to determine if this is true. The investigators did not know whether the NuvaRing and ARVs interact when they are used together, so this study looked to see if certain ARVs (efavirenz and atazanavir/ritonavir) interact with the two hormones released by NuvaRing. This will help us to determine if NuvaRing is safe and effective for women with HIV infection who are taking ARVs. The study also included HIV-infected women who were not on ARVs but used the NuvaRing to show us what the hormone levels are like in a similar group of women not on ARVs. Vaginal rings are also currently being studied to deliver anti-HIV medications that may prevent HIV acquisition, and to provide birth control over a longer period of time (more than 1 month). Since vaginal rings will become more commonly used to administer medications, the investigators wanted to better understand the potential for drug interactions with drugs given vaginally. This study will also help us understand the potential for drug interactions between ARVs given orally, and other drugs given through vaginal rings, like the NuvaRing. Additionally, this study will help us understand how hormones released from a vaginal ring affect the amount of HIV virus in the genital tract, the bacterial make-up (microbiome) of the female genital tract, and the immune system within the genital tract, all of which may affect the chances of spreading HIV.
The purpose of this study is to determine if the quality of life in children and adolescents diagnosed with chronic functional constipation improves after educational activity in focus group composed by these patients' mothers.
The purpose of this project is to compare the effectiveness between face-to-face consultations and consultations via videoconferencing among patients treated in the Institute of Psychiatry (IPq).
The purpose of this research study is to compare the effectiveness and safety of ABP 980 against trastuzumab in women with human epidermal growth factor receptor 2 (HER2)-positive early breast cancer.
This study has the objective to determine if intranasal dexmedetomidine, a sedative, is suitable for pediatric sedation in children undergoing tomographic scans.
The aim of this study is to evaluate the effect of a single session of aerobic plus resistance exercises on the vascular function of patients with type 1 diabetes mellitus. The investigators hypothesize that a single aerobic exercise session would promote greater benefit in vascular function of patients with type 1 diabetes, as compared with the resistive exercise session.
The study aimed to evaluate the use of exercise as a complementary strategy to treat severe major depression in inpatients. Hypothesis: Exercise can be used as a safe and efficacious complimentary strategy in severe depressed inpatients.
The aim of the study is to investigate the longterm impact on cardiovascular morbidity, mortality and renal function of treatment with linagliptin in a selected population of patients with Type 2 diabetes mellitus (T2DM) and to compare outcomes against placebo, on a background of standard of care.
The aim of the study was to evaluate the analgesic effect of transcutaneous electrical nerve stimulation High (100 Hz) and low (4 Hz) frequency in postpartum pain after cesarean section.