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.
Dementia is one of the main causes of disability in the elderly. It is characterized by cognitive, functional and social impairment, as well as behavioral changes. Neuropsychiatric symptoms (NPS) are experienced by patients and observed by caregivers during the natural course of dementia. These symptoms, such as apathy, depression and agitation, are a heterogeneous group of noncognitive symptoms and behaviors. When these symptoms are present, it is more likely that the elderly will be institutionalized as the caregivers will be overloaded with demands. Pharmacological treatment presents little efficacy for the adequate control of these symptoms, and nonpharmacological interventions have been recommended as the first line of treatment. Multisensory stimulation (MSS), a nonpharmacological intervention, is one of the possibilities for intervention in people with dementia and NPS. MSS aims to stimulate the five primary senses, namely, hearing, sight, taste, smell and touch, through pleasurable sensory experiences, in a safe and relaxed environment. This work aims to investigate the effects of an MSS protocol in aged people with dementia living in long-term care institutions in Brazil.
The main purpose of this study is to compare the clinical benefit, as measured by Progression-Free Survival (PFS), Objective Response Rate (ORR), and Overall Survival (OS), achieved by nivolumab in combination with ipilimumab or by nivolumab monotherapy in participants with Microsatellite Instability High (MSI-H) or Mismatch Repair Deficient (dMMR) metastatic colorectal cancer (mCRC). This study will also compare nivolumab plus ipilimumab combination vs chemotherapy for treatment of MSI-H/dMMR mCRC participants.
The aim of this study is to assess irritant or allergic response of 3 developmental cosmetic facial products following a conventional human repeated insult patch test methodology for 6 weeks.
The purpose of this study is to demonstrate the absence of sensitisation and irritation potential of a product when applied to the skin and exposed to ultraviolet (UV) radiation. Photo-sensitisation potential will primarily be evaluated through a subsequent semi-occluded application and UV exposure (challenge phase) after a 2-week rest period. Photo-irritation potential will primarily be evaluated through the repeated occluded application and UV exposure of the study products over 3 weeks (induction phase).
Magnesium sulfate has been shown to be useful in many situations in medicine, such as eclampsia prevention and treatment, pulmonary hypertension, arterial pressure, asthma, cardiac arrhythmias and pheochromocytoma. Recently there has been a growing a big interest in this drug as an useful adjuvant in anesthesia, with analgesic and anesthetic sparing effect, antihyperalgesic property and potentialization of the neuromuscular blocker agent effect. On the other hand there has been a growing concern related to opioid administration, such as hyperalgesia, delayed return of intestinal function and the (still controversial) possibility of facilitating effect on tumor growth and metastases in cancer patients. This project is based on a previous randomized, double blind prospective trial (conducted by one of these authors and not yet published) comparing two groups of patients who received general intravenous total anesthesia with propofol in controlled target infusion. The surgical stress index is obtained by the interaction between the interval between heart beats and the amplitude of the photoplethysmography wave, whose algorithm generates a number related to the hemodynamic result of the increase of the sympathetic tone, which has shown to be the most sensitive resource in detecting the imbalance between the stimulus nociceptive and anti-nociception.
Intense e recurrent nociceptive stimulation, which occurs in the postoperatively, can trigger sensitization of the peripheral and central nociceptive pathway, leading to chronic pain. Patients with rotator cuff injury often present to surgery due to referred moderate to intense long-term pain. During the immediate postoperative period, pain is rare due to the routine administration of a brachial plexus blockade as an adjuvant to improve the quality of postoperative analgesia. However, after the second postoperative day, the effect of the blockade ceases, and the pain becomes high and hard to treat, leading the patient to request administration of more frequent and more potent analgesics. The aim of this project is to assess the postoperative analgesic benefits of a brachial plexus blockcade 2 days before arthroscopic surgical correction of rotator cuff injury by reducing the sensitization of the nociceptive pathway.
Is 1064 nm YAG Laser better than sclerotherapy to treat leg veins?
The purpose of this study is to demonstrate how well aflibercept works in babies with ROP, comparing it with laser therapy. The study also has the objective to demonstrate how safe aflibercept is when used in babies, and describe how the drug moves into, through and out of the body.
This study aims at evaluating the efficacy and safety of a home-based tDCS device when compared to a sham stimulation for improving attention in adult ADHD patients.
Magnesium sulfate has been applied in various situations due to actual or potential benefits related to neuroprotection, treatment of eclampsia/pre-eclampsia, arterial hypertension, adrenergic reflex under laryngoscopy/intubation and, shivering, nausea and vomiting, among others. In anesthesia it has been useful as an analgesic adjuvant; however, the method to calculate the dose of magnesium sulfate in obese population is unclear. The objective of this project is to compare two methods of dose calculation based either on the real weight or corrected ideal weight.