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 literature recognizes that fluoride is the most widely used and studied means for dental remineralization. The use of fluoride toothpaste in brushing is considered more rational method for the prevention of caries. However, the current challenge of toothpaste is the substantivity, so new compounds have been introduced into these formulations. This study aims to evaluate the in vivo effect of fluoride dentifrice containing a natural product - hydrocolloid tara gum - in fluoride retention in saliva and dental plaque. A study of the clinical and laboratory type, crossover, double-blind, randomized will be held. After sample calculation, the total of 12 individuals aged between 18 and 35 years old, healthy, decayed, missing, and filled teeth index less than 6 and residents in brazilian northeast capital will be part of the sample. Fluoride bioavailability will be evaluated in the biofilm and saliva after the use of fluoridated weekly. The biofilm will be assessed on 1h and 12 h after brushing; and unstimulated saliva in times of 3, 15, 30, 45, 60 minutes and 12 hours after. It will be 4 toothpastes: 1100ppm F- with hydrocolloid; F- 550ppm with hydrocolloid; 1100ppm F- without hydrocolloid; Without fluoride with hydrocolloid. Between weeks of use, brushing will be extended washout (without fluoride and no hydrocolloid) to avoid carryover effect. inferential data analysis will be carried out, considering the amount of alpha <0.05. So knowing that caries is a dynamic process, the largest fluoride retention in the oral fluids promoted by the hydrocolloid may have important impact on Des-Re process and in the control of dental caries.
Introduction: Attention deficit/hyperactivity disorder (ADHD) is one of the most prevalent mental disorders in children and is associated with important negative functional outcomes throughout development. The first signs and symptoms become apparent in preschool age. Therefore, early interventions in this population have the potential of limiting the disorder's negative impact and preventing future impairments in affected individuals. The first-choice medication for treating ADHD is methylphenidate, which has evidence of efficacy and safety in preschool children. However, non-evidence based worries and pressure from the media placed parent training as the first-line treatment for ADHD in clinical guidelines. Parent training is a behavioral intervention implemented with the parents, with weekly sessions for 8 weeks, adequate for treating ADHD dysfunctional symptoms and behaviors. However, the level of evidence for this intervention is reduced. Furthermore, the need of trained therapists in the public health system, added to the difficulties on adherence and comprehension from parents, limit its generalization and raise questions regarding its indications. Until now, no study has compared pharmacological treatment with methylphenidate to parent training in preschool children with ADHD regarding their clinical efficacy and cost-effectiveness. Moreover, no study has evaluated the impact of pharmacological intervention and psychotherapy on neurobiological mechanisms of ADHD, which is crucial for determining their impact on neurodevelopment. Objectives: This is a double-blind randomized clinical trial that aims to evaluate the efficacy, tolerability, and acceptability of treatment with methylphenidate compared to parental training and placebo in preschool children with ADHD. Methods: This study will be a randomized, double-blind, parallel-group, evaluating two active interventions and placebo control group. One hundred and fifty children aged 3 years and 11 months and 5 years and 11 months, diagnosed with ADHD, will be randomized to receive treatment with methylphenidate and information (50 children), parental training and treatment with placebo medication (50 children) or belong to active control group with educational information for parents and placebo treatment with no treatment (active control, 50 children). The treatment will last eight weeks, the neurobiological outcomes will be assessed before and after treatment and clinical outcomes will be assessed at weeks 0, 5 and 9. After the end of treatment, all participants will be invited to participate in a 3 years' annual follow-up. 50 children with typical development will also be evaluated in relation to neurobiological measures. Implications: This study proposes an innovative and relevant analysis, which will enable the field to advance the knowledge of biological mechanisms related to ADHD and to treatment response. Also, the study will expand the evidence to guide early prevention strategies and early intervention.
Home visiting programs for pregnant women aiming to improve mother-infant relationship has received worldwide attention in the past 30 years. These programs are considered an important strategy to improve women's health during pregnancy, aside from improving child's birthing conditions and allowing parents access to tools which will nurture and properly stimulate their baby, thus promoting emotional and cognitive development. Objectives: The "Nurse home visitation program for pregnant youth" aims to promote infant´s healthy development, from pregnancy to the first months of life, in a high-risk population. Methods: Eighty young pregnant women aged between 14 and 20 years were randomly allocated to the intervention or to usual prenatal care program. The "Nurse home visitation program for pregnant youth" was developed based on Albert Bandura's theory of self-efficacy, on Urie Bronfenbrenner´s bioecological model, which recognizes the importance of individual and family inclusion in various contexts of social life, on John Bowlby and Mary Ainsworth evolutionary theories of attachment, which involves the care practitioner addressing issues such as environmental health, life course and parenting, bond between mother and infant, and infant´s social and cognitive development. Neuropsychomotor development will be assessed at 3, 6 and 12 months using the Bayley Scale of Infant Development. Brain development will be assessed via electroencephalography at 6 and 12 months.
A Phase III, randomised study of atezolizumab alone and in combination with chemotherapy versus chemotherapy alone in participants with untreated advanced urothelial cancer.
Supervised exercises are the first line therapy for patients with chronic low back pain. The lumbar segmental stabilization (LSE) is a specific training for the muscles of the lumbar spine, which aims to improve neuromuscular control, strength and endurance of the muscles that promotes stability to the spine. The circular dance (CD) belongs to the group of complementary and integrative practices entered in Public Health Care in Brazil, and has been used to improve several aspects related to physical and mental states such as flexibility, posture, strength and muscular endurance, awareness or scheme body, pain control and strains. There are few studies evaluating the circular dance effect on back pain. The aim of this study is to compare the effects of lumbar stabilization exercises and circular dance for improvement in non specific low back pain in middle-aged women.
Associated with the worsening of functional capacity of older adult and the lack of guidance on how to care of them after stroke, the family caregiver starts to fell burden related to the care, and the quality of life was affected by that burden. Besides that, the older adult began to use more frequently health services and had more hospitalizations by preventable conditionals with adequate care. The aim of this study is to evaluate the effectiveness of educational interventions of care at home provide by nurses to family caregivers of older adult with stroke after hospital discharge, compared with usual care guidelines or no guidance, in one month follow up. The family caregivers of older adults post stroke with the first functional sequel from the Clinical Hospital of Porto Alegre (HCPA) will participate in the study. The intervention will involve the systematic monitoring of nurses through home visits (HVs) during one month. Thus, will instrumentalize the family caregiver to care of older adult with stoke according the protocol developed in a research group and the needs of care of them. The control group won't receive the home visits and could have or not the usual care guidelines provide by health services that have access.
Objective: To evaluate the effect of cold water immersion in elayed onset muscle soreness, muscle recruitment, dynamic postural control and quality of sleep in young soccer players. Methods: The sample will consist of 28 soccer players between 18 and 21 years of the same football club and with the same routine practices and games. At first athletes will respond to the IC and will be submitted to the test of a repetition maximum. After three days the athletes will analysis of muscle recruitment by electromyography and dynamic posture control through the force platform both during the time of shooting, moreover, will respond to scale the quality of sleep the previous night and one on pain, then they are instructed to perform a fatigue protocol for the quadriceps and then will be randomized to one of four intervention groups: cold water immersion, submersion in water at room temperature, or active recovery control. The same APPRAISAL be remade into three new moments, 24, 48 and 72 hours after the fatigue test. Hypothesis: The variables will be considered: Pain intensity in the quadriceps muscle, quality of sleep the night after intervention protocol, electromyographic analysis of the rectus femoris, vastus medialis oblique and vastus lateralis at the time of shooting, as well as postural control when the shot off. It is intended to establish the best way of recovery of late quadriceps muscle pain and contribute to the clinical practice of active recovery or rest in young soccer players.
This study evaluated the safety and efficacy of peginterferon alfa-2a monotherapy in participants with Chronic Hepatitis C (CHC) who have End-Stage Renal Disease (ESRD) and were undergoing hemodialysis.
Aim: To evaluate the effectiveness of physical therapy intervention techniques in the improvement of dyspareunia in climacteric women. Study design: This is a randomized controlled trial.
This is a double-blind placebo-controlled randomized clinical trial to test the use of tamoxifen or lidocaine for diminishing the pain and discomfort while performing mammography, intending to include 450 patients distributed between the three groups.