There are about 1196 clinical studies being (or have been) conducted in Colombia. 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.
This study measures SP and CGRP expression in human dental pulp under occlusal trauma induced by occlusal interferences under moderate orthodontic forces or under a combination of occlusal trauma and moderate orthodontic forces because in clinical reality, patients under orthodontic treatment experience a combination of these stimuli on their pulp tissue.
Guided bone regeneration (GBR) has been the most frequently used option to treat bone ridge deficiencies, allowing to restore such defects in order to place bone-integrated dental implants. A few reports exist in the literature about the augmentation of mandibular horizontal ridge defects before implant placement. Published studies show a large variability of reported results regarding horizontal bone augmentation. This can be due to the use of different types of membranes and bone graft materials or a combination thereof. Likewise, an important percentage of graft reabsorption is reported. Although this technique is very much used, an important number of cases must be re-treated or require placing bone graft during implant installation surgery. Techniques are required in order to improve vascularization of the grafts during GBR technique with the aim to improve their clinical success. Recent studies show great interest on the application of shock waves in oral diseases associated to infection and bone loss. The shock waves are acoustic waves that have effects on human biological tissues, stimulating the neo-angiogenesis and the development of a hyper cellularity, showing repairing characteristics on tissues, and starting regenerative processes as a result of metabolism improvement and the increase of local circulation. The extra corporeal shock waves can activate the osteoblasts and their precursors and they have been widely used in orthopaedics for repairing bone fractures. Several clinical studies have shown the effectiveness and safety of shock wave therapy in myocardial revascularization, lithotripsy, cellulitis, volar fasciitis, osteonecrosis, bone fractures, and complicated injuries of soft tissues. No clinical studies exist that assess its effect on guided bone regeneration. The evidence related to the positive effects of the use of shock waves on bone regeneration suggests this treatment as a novelty and a promising therapy that combined with the GBR technique for the treatment of horizontal defects could have an important impact on the potentialization of its clinical effectiveness.
This study evaluates the effect of three different airtime incentive amounts on interactive voice response (IVR) survey cooperation, response, refusal and contact rates, as compared to control group, in Colombia and Tanzania.
This study evaluates the effect of four different airtime incentive amounts on short message service (SMS) survey cooperation, response, refusal and contact rates, as compared to control group, in Colombia and Tanzania.
Highly active antiretroviral therapy (HAART) has been the greatest achievement to control the HIV/AIDS epidemic in the world. HAART has been shown to reduce virus replication to undetectable levels and to favor the recovery of immune function, avoiding the occurrence of opportunistic diseases. Although existing treatments have been shown to lower AIDS-related morbimortality and to increase patients' quality of life, the success of HAART requires high levels of adherence to the prescribed treatment regimen. Adherence to HAART has become the major challenge for global public policy managers and healthcare teams involved in the care of HIV/AIDS patients. Mental healthcare professionals should use structured and effective intervention as strategies to facilitate a better approach, increase patients' autonomy and achieve optimal adherence. Trial-Based Cognitive Therapy (TBCT) is a new, structured, and short-term version of cognitive behavior therapy developed by de Oliveira (2011). TBCT is an active approach that aims to change negative cognitions, especially dysfunctional core beliefs, that negatively influence patient's life in different domains. TBCT helps patients recognize situationally based thoughts, unhelpful beliefs and maladaptive behaviors that exacerbate emotional distress. This study aims to assess the efficacy of TBCT in helping the patients to identify thoughts, emotions, assumptions and behaviors associated with non-adherence to antiretroviral therapy, and to improve adherence to treatment.
Colorectal cancer worldwide is the third most common in men and the second in female, although mortality is not as high as its incidence, there is less survival in developing countries. According to data from the World Health Organization, in 2012, there were an estimated 1.4 million cases and 693,900 deaths from this disease. Patients with rectal cancer are frequently taken to resection surgery as a curative management of their malignant pathology, according to the type of resection or reconstruction. In a high number of cases, they are management with colorectal anastomosis with a derivative ileostomy in the same procedure. The closure of this ileostomy is usually done after two to three months of the procedure, however in our environment it could take up to six or twelve months, during which time the patient is exposed to social difficulties, management problems and complications, derived from it. The early closure (7-12 days of its creation) of an ileostomy, despite the little evidence, seems to be a safe, feasible procedure that would save the patient having to live temporarily with an ileostomy.
In this study researchers want to gain more information on treatment patterns of patients treated with Xarelto in combination with acetylsalicylic acid (ASA). Both drugs reduce the risk of blood clots via different pathways. The study will enroll adult patients suffering from coronary artery disease (narrowing or blockage of vessels that supply the heart with blood) or peripheral artery disease (narrowing or blockage of vessels that supply the legs or head with blood). The study will focus on information on when and why physicians are starting to treat patients with Xarelto in addition to ASA, treatment duration, reasons to discontinue treatment and previous therapies. The study will also look into treatment outcomes for patients being treated with a combination of Xarelto and ASA by their physicians.
Cable cars are means of transportation with urban mobility benefits for vulnerable populations living in areas with geographic barriers. Despite their popularity, there is no evidence of cable cars' potential health effects. TransMicable, located in "Ciudad Bolivar", Bogota, Colombia will open in late-2018 presenting an unprecedented opportunity to assess the health impacts and accessibility improvements. The investigators aim is to assess the effect of theTransMiCable implementation on social determinants of health (social capital, employment, crime, transport, microenvironment pollution, built environment), healthy behaviors (leisure and transport physical activity) and health outcomes (health-related quality of life, respiratory diseases and homicides). The investigators are conducting a controlled quasi-experimental pre-post study with six elements: 1) The co-construction of a conceptual framework using a causal loop diagram with stakeholders of multiple sectors. 2) A (non-intervention - intervention) quantitative study of social capital, community participation, travel time, costs, demand, modal choice, physical activity and health-related quality of life using repeated in-person questionnaire, anthropometric measurements and physical activity using accelerometers. 3) A transport trajectory study in a subsample of the population of the quantitative study using a mobile application to track journeys. 4) A subsample of environment evaluations 5) Our Voice in the Neighborhood qualitative study to address the potential change in perceptions of the neighborhood using Citizen Science "by the people" involving the community and local public and private stakeholders and 6) A Secondary-data analysis of Crime and Respiratory diseases using time trends from official surveillance systems for homicides and acute respiratory diseases. The investigators' main hypothesis are 1) There is an increase in the Social Capital and Quality of life indicators in the TransMicable target area after the implementation when compared to other neighborhoods without TransMiCable. 2) There is a significant decrease in travel time and cost for trips to downtown Bogota and an increase in the total number of trips for residents of "Ciudad Bolivar" neighborhoods with TransMiCable, after the implementation of TransMiCable when compared to other neighborhoods without TransMiCable in the locality of "San Cristobal". 3) There is a significant shift in modal choice for the resident of "Ciudad Bolivar" from informal transport service to the TransMiCable system with a positive association in terms of proximity to TransMiCable stations. 4) Most TransMiCable users are former informal bus transit and formal bus feeder users. While most users will access TransMiCable by walking, some living further from stations will take informal transport services to access to TransMiCable. 5) There is a reduction in the microenvironment pollution around the target area of TransMiCable when compared to the control area. 6) There is a change in the perception of the neighborhood for residents of the target area of TransMiCable when compared to the control area. 7) There is a significant decrease in the prevalence of homicides and acute respiratory diseases in the area of the TransMiCable implementation in comparison to the control area without TransMiCable. The results of this study will allow us to understand baseline dynamics, while, in the long-term, allowing us to assess the changes in travel and health behaviors.
Enteral nutrition is considered the best way to feed those who can´t be fed orally. the standard protocol of administration includes continuous infusion for 24 hours; nonetheless this support is constantly suspended which causes a decrease in the nutrition administered vs the one formulated. Therefore this randomized clinical trial attempts to compare de standard administration vs. cyclic infusion during night hours measuring the formulated vs the administered volume of enteral nutrition given to the patient. The control group will be assigned standard 24 hour infusion of enteral nutrition while the experimental group will be assigned cyclic infusion during night hours. The variables include volume formulated, volume given in 24 hours, hours and reasons why the enteral nutrition was suspended, and related complications (abdominal distension, vomiting, and diarrhea).
Evaluate molecular testing and treatment patterns for EGFR mutation in two different cohorts of stage IV NSCLC, at diagnosis (treatment naïve) and at the moment of progression to EGFR-TKIs. This study is non-indication seeking (NIS), descriptive in nature and does not attempt to test any specific a priori hypotheses.