There are about 2273 clinical studies being (or have been) conducted in Chile. 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.
Background: Aging leads to an alteration in the immune response, characterized by a chronic inflammatory state, and a progressive decrease in muscle quantity and quality, a situation that increases in women and in the presence of obesity. With respect to muscle quality, intramuscular infiltration of adipose tissue has been considered a relevant parameter, involved in the relationship between aging-obesity-inflammation. As a therapeutic strategy, physical training with resistance exercises (or also known as strength training) has been shown to be effective in increasing skeletal muscle mass in this age group. However, its role on muscle quality in normal-weight versus obese older women has not been fully addressed. Hypothesis: A 12-week resistance exercise training program is effective in improving muscle quality, immune response and physical performance in normal weight and obese older women. In addition to the above, the investigators hypothesize that women with obesity will present greater baseline alterations, so the percentage of change will be higher compared to older women with normal weight after the training program. Goals: The primary aim of this study is to evaluate the effects of a 12-week resistance exercise training on muscle quality (infiltration of intramuscular adipose tissue), immune response and physical performance in older women between 60 and 79 years of age with obesity compared to older women with normal weight of the same age range. Methodology: The present clinical trial will consider 2 groups of older women between 60 and 79 years old: normal weight (BMI=18.5 to 24.9 kg/m 2 and % fat <25.9) and obese (BMI =30 to 39.9 Kg/m 2 and fat % >32). Participants will perform 12 weeks of training with resistance exercises 3 times a week. Before and after training, intramuscular infiltration of adipose tissue (echogenicity) will be measured by ultrasound, followed by aspects of muscle architecture (muscle thickness, penile angle and fascicle length) and functional parameters of muscle quality (maximum strength determined by 1 repetition maximum-1RM, maximum voluntary isometric strength of knee extensors through a lower limb force and power transducer). Finally, fasting blood samples will be obtained (immune response) and physical performance, body composition, physical activity level, and quality of life will be evaluated.
The ACtive BEhaviour in School Education (ACTIBESE) project aims to assess and intervene in Chilean schoolchildren's active behaviours by examining the influence of personal, interpersonal, and school factors. This study includes a cross-sectional and intervention study involving 152 schools in the Valparaíso and Araucanía Regions, representing urban and rural areas. Participants, divided into children (8-11 years old) and adolescents (12-17 years old), will undergo a comprehensive evaluation, including sociodemographic characteristics, physical activity (PA) levels, parental and peer support, teaching styles of the teachers, and school environment characteristics. For the cross-sectional study, questionnaires, interviews, accelerometry, and pedometry will be used to collect data on various factors influencing PA in schoolchildren. In the intervention study, a 5-month continuous training program for teachers will be implemented, focusing on improving teaching styles and enhancing teaching competencies related to physical education and health classes. The program aims to positively affect schoolchildren's PA indirectly through improved teaching practices. The research will use mixed models, ANCOVA (Analysis of Covariance) , and logistic regressions for data analysis, incorporating multilevel logistic regressions to account for school-level dependencies. The study's outcomes will contribute valuable insights into the complex interactions between school, interpersonal, and personal factors influencing schoolchildren's PA, aiding the development of targeted interventions. This comprehensive approach aligns with the project's goal of fostering a physically active lifestyle among Chilean schoolchildren.
Aim: to compare the effects of single-task (ST) and dual-task (DT) training on physical and cognitive function in institutionalized older adults in 1 month. Methods: Participants were assigned randomly into two groups, ST (multicomponent physical exercise) and DT training (multicomponent physical exercise + cognitive tasks). Both groups performed the exercise three times per week for 1 month. Short Physical Performance Battery (SPPB), handgrip strength, Barthel Index and Montreal Cognitive Assessment (MoCA) were used to assess physical and cognitive performance, respectively. Variables were measured at the beginning (V1),at the end of the exercise (V2), as well as one month later (V3). Paired Student's t-test and lineal logistic regressions models were used to explore the effect of the exercise interventions.
The purpose of this study is to compare the effectiveness and safety of golcadomide in combination with rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP) chemotherapy vs placebo in combination with R-CHOP chemotherapy in participants with previously untreated high-risk large B-cell lymphoma (LBCL).
The present study seeks to follow up the cohort of adults representative of Chile's urban population whose levels of chronic pain were evaluated in March 2023 (baseline) as part of the Mental Health Thermometer (MHT) study. The study consists of a 12 month follow-up telephone interview to assess parameters of chronic pain (CP) and subtypes, mental and physical health, lifestyle and adversity and work characteristics. The study objectives are as follows: 1. Estimate the prevalence of CP and subtypes in the general population 2. Explore the association between mental health indicators, perceived work stress and presence of CP in the population. 3. Investigate the impact of CP (functional, occupational and social) among the subset of participants reporting CP 4. Describe the use of management strategies in those who suffer from CP.
Ketamine, an intravenous anesthetic, and analgesic agent has experienced a resurgence in its clinical application, particularly in subanesthetic doses. The aim of this observational study is to characterize the changes in the Nociception Analgesia Index (ANI) associated with the administration of an intravenous ketamine bolus using a Pharmacokinetic-Pharmacodynamic (PKPD) modeling approach. The pharmacokinetic parameters of the Domino model will be used to predict ketamine plasma concentrations after the bolus dose. An Emax model and a link model assuming a first order rate constant (ke0) will be used to fit the data. Modeling analysis will use the program NONMEM. It is expected to recruit a total of 20 patients between 40 and 80 years, ASA I, II or III, programmed for elective surgery with general anesthesia. ANI values will be recorded every 6 seconds for 5 minutes from the bolus dose.
CO-CREATION-HF aims to evaluate the effectiveness of a comprehensive and hybrid cardiac rehabilitation model compared to supervised exercise alone.
The goal of this study is to explore whether specific intraoperative EEG signals (brain waves or neuronal electrical activity) are associated with the severity of acute postoperative pain.
Monitoring performed by a trained operator has proven to be useful and valued by patients after the use of continuous regional anesthesia. A health professional calls each patient to gather information about their recovery. However, this direct communication strategy requires time and resources, especially if many patients are involved. A modern and convenient approach involves the use of immediate communication technology for follow-up after a procedure. They may contain specific questions that patients can easily answer from their mobile devices. Automated text messages could be associated with greater convenience and ease for patients with response rates at least like the traditional method. Phone calls, on the other hand, may be less scalable and require more human resources. The objective of the project is to evaluate the feasibility of monitoring through automated electronic messaging by evaluating its usability using a validated scale in Spanish. response rate on the first day and adherence rate compared to that of the traditional method. Secondarily, adherence and differences in satisfaction will be compared.
Breast cancer stands as the foremost cause of cancer-related deaths among women worldwide, with the highest incidence of any cancer type. The choice of therapeutic interventions hinges upon factors like cancer stage, cell subtype, and tumor size. Consequently, individuals with more aggressive tumors, such as HER+2 and Triple Negative, or larger tumors often undergo neoadjuvant chemotherapy before breast surgery. However, these anticancer treatments come with side effects like cancer-related fatigue, reduced functional capacity, and changes in body composition, notably skeletal muscle atrophy. Skeletal muscle loss correlates with heightened mortality rates, cardiotoxicity, and diminished quality of life, underscoring the need for early therapeutic interventions. One such promising strategy is prehabilitation, which involves resistance-exercise training aimed at bolstering skeletal muscle mass from the outset of the disease, even preceding breast surgery. Resistance-exercise training has shown favorable effects on women undergoing adjuvant therapy or survivors of breast cancer, however, its molecular and clinical effects in women with breast cancer undergoing neoadjuvant therapy are unknown.