There are about 2320 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.
The purpose of this study was to evaluate the efficacy and safety of pembrolizumab plus epacadostat compared to sunitinib or pazopanib in participants with locally advanced/metastatic renal cell carcinoma (mRCC) with a clear cell component who have not received prior systemic therapy for their mRCC.
The purpose of this study is to demonstrate the impact of secukinumab on the progression of structural damage in the spine, as measured by the modified Stoke Ankylosing Spondylitis Spine Score (mSASSS) in patients with Ankylosing Spondylitis (AS).
The purpose of this study was to determine the efficacy, dose response, and safety of M52951 in participants with Rheumatoid Arthritis (RA), and to consider a dose to took forward into Phase III development.
This study evaluates the effect of Vitamin D3 supplementation in healing rate of tibia fractures in adult patients with low vitamin D. Half of participants will receive Vitamin D3 supplementation while the other will receive placebo.
To minimize the effects of polymerization shrinkage in the restorative treatment, there are new composites called Bulk- Fill which the companies has developed this composites for example Tetric N Ceram(Ivoclar-Vivadent) and Filtek ( 3M ESPE). Its decreased polymerization shrinkage and properties allow the material to be inserted in one layer being quickly than traditional composite. This clinical study is designed to compare the clinical performance of the bulk fill composite resin in Class I (one-surface posterior), II (two-surface posterior) and V (cervical-surface posterior) fillings.
To examine the impact of health determinants at the individual (e.g. health related behaviors) and societal level (e.g. environmental factors, health related policy, quality of health systems) on health outcomes (e.g. death, non-communicable disease development) across a range of socioeconomic and health resource settings. Additional components of this study will examine genetic factors for non-communicable diseases. This will be examined both through a cross sectional component, and prospectively (cohort component).
Interscalene brachial plexus block constitutes the analgesic criterion standard for shoulder surgery. However it is associated with a high incidence of hemidiaphragmatic paralysis (HDP) that may not be tolerated by patients with chronic pulmonary disease. This randomized controlled trial will compare ultrasound-guided interscalene block (ISB) and supraclavicular block in patients undergoing arthroscopic shoulder surgery. The main outcome is static pain at 30 minutes after arrival in the post anesthesia care unit (PACU) as measured by a numerical rate scale (NRS) from 0 to 10. Our research hypothesis is that interscalene and supraclavicular blocks will result in equivalent postoperative analgesia at 30 minutes in the PACU. The equivalence margin is set at 2 points
The purpose of this study is to evaluate the efficacy of pembrolizumab (MK-3745) in the neoadjuvant (prior to surgery) or adjuvant (after surgery) treatment of previously untreated adults with gastric and gastroesophageal junction (GEJ) adenocarcinoma. The primary study hypotheses are that: - Neoadjuvant and adjuvant pembrolizumab plus chemotherapy, followed by adjuvant pembrolizumab is superior to neoadjuvant and adjuvant placebo plus chemotherapy, followed by adjuvant placebo in terms of Event-free Survival (EFS) based on Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1), and - Neoadjuvant pembrolizumab plus chemotherapy is superior to neoadjuvant placebo plus chemotherapy in terms of rate of Pathological Complete Response (pathCR) at the time of surgery. With Amendment 10, upon study completion, participants will be discontinued and may be enrolled in an extension study.
This is a non-interventional multi-center with investigational sites in Chile and Brasil diagnostic study to validate novel diagnostic technologies, such as Next Generation Sequencing (NGS) from both tissue and blood compared to the current gold standard. As a non-interventional study, patients will receive the treatment indicated by their doctor independently of their participation on this study. Many cancer cells look the same under the microscope. But as these cells are studied at the molecular level, some genetic alterations or defects that are more common to certain types of cancer are identified. In some cases, these defects are what make the cells grow and multiply abnormally. Biomarkers are the molecular fingerprints of these genetic defects. By testing a sample of your tumor for biomarkers, doctors can learn if your cancer has one of these defects, and that may point to a specific treatment choice. One of the genetic biomarkers that are believed to cause some cancers to grow is the ALK fusion gene. About 3% to 5% of people with NSCLC may test positive for ALK. ROS1 is a receptor found in 1 to 2% of people with this type of cancer. The present study is designed to advance the molecular testing methodologies to identify ALK+ and ROS1+ NSCLC patients. A positive correlation with these new technologies will mean an efficient, more accurate diagnostic test, which could impact a greater number of cancer patients around world.
The present study investigates whether it is possible to achieve equally satisfactory results between 37.5% hydrogen peroxide gel and 6% gel for teeth bleaching. A prospective, double-blind, randomized clinical trial was carried out. A total of 33 patients were selected from the clinic of the Faculty of Dentistry at the University of Chile. The patients included men and women over 18 years old without prior tooth whitening treatments, tooth decay, or restorations of the upper front teeth. The patients had tooth colors of A3 or less according to the Vita Classical scale, which was determined with a Vita Easy® Shade spectrophotometer. The study was carried out with a "split-mouth" design. One side of each mouth was randomly treated with 37.5% hydrogen peroxide, and the other side was bleached with 6% hydrogen peroxide. Each group received 3 to 12 minutes of treatment with the respective gel applications. Two sessions of bleaching were carried out each week. Color was assessed at 7 different sessions for 3 months. The spectrophotometer was used to measure the total variation of color (ΔE) between the baseline (session 1) and different measurement times (sessions 2-7). We compared ΔE for both agents using the Mann-Whitney test.