There are more than 498,563 clinical trials published worldwide with over 60,000 trials that are currently either recruiting or not yet recruiting. Use our filters on this page to find more information on current clinical trials or past clinical trials (free or paid) for study purposes and read about their results.
To investigate if fresh finger prick autologous blood (FAB) instead of serum from venesection, is a safe and effective treatment for dry eyes and corneal ulcers/ epithelial defects. Currently there are no studies on the use of whole fresh blood for the treatment of chronic ulcers, persistent epithelial defects or dry eyes. Unpublished case reports indicate that fresh blood can be an effective tool to the treatment of corneal pathology.
This research study is designed to investigate brain response using fMRI scan, and behavioral responses, to treatment with the drug carbamazepine (CBZ) in patients with the painful sodium channelopathy inherited Erythromelalgia (IEM). This study is designed to identify the central nervous system (CNS) regions that are activated during ongoing or evoked pain attacks, and the altered CNS response to CBZ treatment. This will advance our understanding of how IEM affects the brain. We also hope to validate a pharmacogenic approach to the study of IEM by use of an FDA approved drug. We hope, but cannot be sure, that subjects will directly benefit from this study.
Background and objectives: Recently the news of intern doctors' death due to overloaded work or committing suicide has made the authorities concerned put emphasis on the mental health care of medical staffs and related policies of psychological interventions. The prefrontal lobe plays an important role in the working memory, executive function and problem-solving abilities of the brain. Currently, no neuroimaging studies investigating the impact of job stress on the prefrontal love functions in intern doctors. Functional near-infrared spectroscopy (fNIRS) measures the cortical functions of the frontotemporal regions and has been widely used as a biomarker to aid in differential diagnoses in major psychiatric illnesses in Japan. The present study will investigate impact of the job stress on brain cortical activity during a verbal fluency test (VFT) by using fNIRS. Materials and methods: A total of 100 participants will be recruited. Clinical measurements of mood status by Beck's Depression Inventory and Beck's Anxiety Inventory, as well as job stress by Chinese Version of the Job Content Questionnaire and the Chinese version of Copenhagen Burnout Inventory will be arranged. The relationship between clinical measurements and cortical activity during a VFT will be analyzed by Pearson's correlation. Multiple regression analysis will be applied to investigate the independent contributions of mood status and job stress. Expected results and contributions of the study: Job stress, depression, and anxiety are significantly negatively correlated with cortical activity of prefrontal regions. The importance of mental health of medical staffs under high job stress should be stressed.
Through a double blinded study, patients with low rectal cancer will be randomized into two equal groups to compare between the 5 year disease free survival as a primary outcome measure.
The RELAHP registry is a Latin-American multinational, multicenter, prospective observational registry-type cohort study, which pretends to identify clinical characteristics, clinical course, management and outcome of all forms of pulmonary hypertension (PH). All consecutively consented patients newly diagnosed with WHO Group I-V PH according to specific hemodynamic criteria on right heart catheterization at the participating centers will be enrolled. Patients will be followed six-monthly for a minimum of five years from the time of enrollment.
The purpose of this study is to assess how human skin reacts and how sunscreens and sun protection fabrics protect in natural sunlight compared to their labeled claims, indoor testing methods (existing or modified) and instructions.
Percutaneous endoscopic gastrostomy (PEG) was created to replace surgical gastrostomy in patients who are needed long-term tube feeding. PEG has less severe complication rate or mortality rate compared with traditional surgical gastrostomy. However, there are still some mild complications which cannot be completely prevented and peristomal infection is the most common one. Povidone-iodine (PVP-I) exhibits broad range of microbicidal activity via increasing the solubility of iodine. In our study, the gastrostomy feeding tube will be coated with a layer of Betadine before PEG technique. Investigators expect gastrostomy feeding tube coated with Betadine will reduce the oropharyngeal, esophageal and gastric bacteria colonization rate, followed by reducing peristomal infection rate.
The goals of this study are: (1) to better understand the relationship between the phenotype and genotype of amyotrophic lateral sclerosis (ALS) and related diseases, including primary lateral sclerosis (PLS), hereditary spastic paraplegia (HSP), progressive muscular atrophy (PMA), and frontotemporal dementia (FTD); and (2) to develop biomarkers that might be useful in aiding therapy development for this group of disorders.
The purpose of this study is to evaluate rate of progression in newly diagnosed open angle glaucoma with different types of perimetry. Would it be possible to find the rapidly progressing individuals sooner by doing perimetry more often? Is there a difference between different types of perimetry in early glaucoma? What would be the optimal timing of perimetry in newly diagnosed glaucoma? In addition the quality of life in glaucoma patients will be evaluated with two types of questionnaires in three different time points. The enrolled patients will receive appropriate treatment according to glaucoma management guidelines.
This study will compare two types of assistive devices for communication (a voice amplifier and a personal communication system) in individuals with a speech disorder related to Parkinson's disease. The performance of these two devices will be examined with measures of speech intelligibility and patient questionnaires and rating scales.