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.
Hypoestrogenism leads to vaginal wall changes resulting in diminished vaginal lubrication and, consequently, causing pain during intercourse. Topical estrogen therapy (THT) may control this complaint. However, there are limitations on its use, especially in patients with breast cancer and diagnosed endometrial cancer. This randomized clinical trial aims to assess the impact of local estriol therapy in postmenopausal women complaining of coital pain and to assess serum concentrations of estriol in these women after estriol use. One-hundred-thirty-two women aged between 40 and 65 years will be randomized into three groups: Women using estriol 1 mg / 1g at the proximal third of vagina every other night - estriol proximal group (PEG), women in using estriol 1 mg / 1g at the distal third of the vagina every other night - estriol distal group (DEG), gel group (GG) using water-based during intercourse.
The REGENT study (Familiar Renal Disease, Epidemiology and Genetics in Niteroi/Rio de Janeiro) is a epidemiological study that try to identify and clinically describe questions about genetic renal diseases in a southeast Brazilian population undergoing renal replacement therapy.
This randomized, double-blind, placebo-controlled, parallel-group study will evaluate the efficacy and safety of crenezumab versus placebo in participants with prodromal to mild AD. Participants will be randomized 1:1 to receive either intravenous (IV) infusion of crenezumab or placebo every 4 weeks (Q4W) for 100 weeks. The primary efficacy assessment will be performed at 105 weeks. The participants who do not enter open-label extension will enter for a long term follow-up period for up to 52 weeks after the last crenezumab dose (Week 153).
This study investigates the effects of nutritional counseling versus standard nutritional care on nutritional status and quality of life in patients with head and neck cancer submitted to radiotherapy.Half participants will receive intensive nutritional counseling while the other half will receive standard care.
Thirty individuals with ALS (18 men and 12 women, mean age 59 years, range 44-74 years), and 30 healthy controls matched for age and gender, participated. Individuals with ALS and from the control group were randomly divided into three groups, each using a different communication device systems (Kinect®, Leap Motion Controller® or touchscreen) to perform two task phases (acquisition and retention). Performance was then explored in a third phase (transfer) by switching devices (two transfers); so that, all groups had contact with all communication interfaces.
The aim is to compare the effectiveness and cost-effectiveness of a Pilates program versus home-based exercises in individuals with chronic non-specific low back pain. This is a randomized controlled trial with economic evaluation. Participants will be sequentially enrolled and randomly allocated into two groups: 1) Pilates: Mat Pilates sessions, supervised by a physiotherapist (2x/week for 6 weeks); 2) Home-Based Exercise: face-to-face familiarization (two sessions), supervised by another physiotherapist. After familiarization, the exercises will be prescribed using a booklet containing descriptions of sets/repetitions, as well as guidelines and precautions, to be performed during 6 weeks (2x/week) and monitored in a diary. Participants will be supervised by the physiotherapist (telephone/text messaging). Participants will be evaluated in three different moments: 1) Baseline (pre-intervention); 2) At the end of the intervention (post-intervention, 6 weeks); and 3) After six months follow-up (from post-intervention). Primary outcomes: pain intensity and disability. Secondary outcomes: perception of recovery, postural balance, and quality of life. Concurrently, a cost-effectiveness study will be conducted comparing the Pilates vs Home-Based Exercise, from the perspectives of public healthcare and society. In the first perspective, only costs incurred by the public healthcare system will be included (direct costs related to consultations, medications, tests, hospitalizations, and professional fees). In the second perspective, private health care expenses, costs incurred by patients (transportation and support by caregivers, when applicable), as well as indirect costs (missed workdays and loss of productivity) will be included. The incremental cost-effectiveness ratios for the primary outcomes and cost-utility ratios will be calculated for both perspectives. The cost-utility ratio will express the incremental costs per quality-adjusted life year (QALY). In addition, the absolute and incremental net monetary benefit will be calculated. Sensitivity analyses will be conducted. Data normality assumptions will be evaluated using the Shapiro Wilk test. If confirmed, a mixed model will be used, for the comparisons between groups and moments. It is hypothesized that the Pilates will be more cost-effective compared to the home-based exercise program.
The purpose of this phase I study is to know the pharmacodynamic profile in humans of the sodium heparin of porcine origin of the company União Química, building from the pharmacodynamic data generated its pharmacokinetic profile, due to the dosage limitation of heparin directly in biological samples. In addition, the toxicity of the product will be evaluated in healthy male participants.
Introduction: Bruxism is a parafunctional habit that affects the stomatognathic system and its support structures. Usually associated with stress and mostly occurring at night, bruxism leads to sleep disorders and daily tension headaches. Aiming to rebalance the emotional and physical state of patients, floral-essence therapy lacks side effects or drug interactions, and has been recognized by the World Health Organization. Aim and Methods: The investigators created a buccal-relaxant formula, combining 8 floral essences and testing it in a double-blind clinical assay conducted in bruxism patients. Results: An alcohol solution of the buccal relaxant containing Daughter of Gaia floral essences of Taraxacum officinale, Antirrhinum majus, Fuchsia × hybrida, Bidens bipinnata, Campanula carpatica, Achyrocline, Nymphaea caerulea, and Tetraoensis riparia significantly attenuated temporal headaches in the bruxism patients compared to the placebo group (69.46%±1.79 versus 3.55%±1.37, P=0.0001). Moreover, patients after 21 days using the buccal relaxant increased their quality of sleep and experienced attenuated jaw-muscle rigidity or morning mouth-opening difficulties. Less masseter hypertrophy and reduced sensitivity due to abfraction of enamel facets were noted as well. Conclusions: The buccal-relaxant formula may have sedative properties, preventing daily temporal headaches in sleep-bruxism patients, suggesting a muscle-relaxation effect. Although the results are promising, long-term studies are needed to clarify the pharmacological mechanism of each floral essence in the buccal-relaxant formula and their tolerance effects.
The aim of this study was to perform a clinical and microbiological evaluation of teeth with incomplete apexogenesis and traumatic necrosis that were treated with a revascularization technique, evaluating the microbial reduction after the use a double antibiotic paste. Furthermore, the investigation also aims to identify the presence of Enterococcus faecalis and Porphyromomas gingivalis within the root canal system.
The objective of this study is to evaluate the effects of LED phototherapy associated with a resistance training protocol on the peripheral muscle function of moderate to severe asthmatic patients ..