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.
This study will test the hypothesis that early use of combination therapy with dapagliflozin and metformin will provide good glycemic control with low glycemic variability and without hypoglycemic episodes, and will be better tolerated than up-titration of metformin monotherapy. The study will also correlate these benefits with glycated hemoglobin.
"Poor corneal epithelialization problem" can be found in a lot of ocular surface disorders, including limbal insufficiency, dry eye, chemical burn and neurotrophic disorders. Delayed corneal epithelialization under any circumstances can lead to corneal infection, corneal melting, corneal opacity, pain or blurred vision. It is thus important to develop pharmacological methods to promote corneal epithelial wound healing in those patients. Previously, various epitheliotrophic growth factors, autologous serum, cord blood serum, etc. have been proved to be effective in promoting corneal epithelial wound healing. However, those topical agents have the drawbacks including the difficulties during preparation, expensive price, non-standardized quality and the risk of contamination during preparation. It will be clinically important to find other blood derivatives which are effective, convenient for use, stable in quality and being cheap. During the recent few years, various" platelet related blood derivatives" have been proved to contain a lot of epitheliotrophic growth factors, and can promote wound healing. Among those products, "platelet lysate" has the benefits of being commercially available. It can avoid the complicated producing procedure, and has stable quality. Although platelet lysate has been widely used in various medical fields, especially in culturing mesenchymal stem cells, its potential in promoting corneal epithelial wound healing has not been proven. The purpose of this project is to explore the possibility of using platelet lysate to treat patients with poor corneal epithelialization problem, and compare its epitheliotrophic ability with other blood derivatives. The cultured human corneal epithelial cell line will be used for all experiments, and will be cultured with media containing different blood products: (1) control group without blood derivatives, (2) fetal bovine serum, (3) human serum, (4) platelet lysate commercial product—UltraGro, (5)platelet lysate commercial product---PlatMax. MTS assay will be used to measure proliferation ability. "Scratch-induced directional wounding assay" and "Boyden chamber chemotaxis assa" will be used to measure cell migration. Scanning electron microscopy, transmission electron microscopy, transepithelial electric resistance (TEER) and immunohistochemistry with junctional proteins will be used to measure cellular differentiation. Through these experiments, the investigator aim to understand whether platelet lysate can replace other blood derivatives, and be used for treating patients with corneal epithelialization problem. Beside, current medications in dry eye are all manufactured, transported and used in the form of liquid form. However, it is more disturbing in transporting, commercializing, storing and the limitation of expiration date for current medications compared with powder form medications. Therefore, improving the convenience of utilizing and storage without at the expense of the efficacy of blood-derivatives has become a critical issue. Our study also aimed at trying to produce platelet-related derivatives (including platelet lysate) and human serum into the form of dry powder and resuspended it with preservative-free artificial tears. The investigator would compare the epitheliotrophic ability of the liquid form of blood derivatives and the powder form of blood derivatives. Since human serum is needed for comparison , the investigator proposed this IRB to collect human serum from healthy volunteers。
To determine if there is a difference in the quality of life in between patients who undergoes laparoscopic totally extra-peritoneal (TEP) or modified Lichtenstein hernioplasty
This study addresses the effectiveness of a smartphone application to improve academic performance among medical students. Participants will be randomised to receive an application developed by a team of physicians and engineers, designed to review key concepts in internal medicine and its subspecialties. The primary outcome will be the number of correct answers in a multiple choice test 4 weeks after randomisation.
To prove that the efficacy and safety of 'NK group' is superior to 'non-treatment group(Control group)' in patient undergone curative resection(RFA or operation) for hepatocellular carcinoma in China.
The purpose of the study is to evaluate safety, tolerability and performance of the CyclaPlex implant, a button and suture type implant device and instruments for the correction of the first inter metatarsal angle in subjects suffering from Hallux Valgus deformity.
This research project focuses on the evaluation of an engaging exercise and cognitive computer game-based platform and embedded assessment tools for use in clinical practice and its transition to use in the home, and elementary classrooms. The goal of our research program is to produce innovative therapeutic point-of-care and cost-effective delivery system leading to better long-term health outcomes for toddlers and children with neurodevelopmental disabilities. The program is grounded on our technological developments and on current research documenting the benefits of computer-aided learning tools, exercise gaming applications in rehabilitation and principles of adaptive learning and neuroplasticity. We will conduct a randomized controlled trial to study the feasibility and effectiveness of a computer-aided, game-based repetitive task practice (RTP) program designed for training of fine and gross motor skills of the hand-arms and psychomotor skills (which) in young children with CP.
Post exercise irisin levels in PWS patients Obesity, short stature, hypogonadism, hypotonia and impaired cognition are the major clinical features of Prader-Willi syndrome (PWS), a complex neurogenetic disorder due to lack of expression of paternal genes in the chromosomal region 15q11-13. Abnormal body composition with decreased muscle mass and increased fat mass contributes to low resting energy expenditure in PWS. Severe caloric restriction in the range of 800 kcal per day along with daily exercise regimens are needed to prevent weight gain and complications of obesity in this population. Brown adipose tissue (BAT) once thought to be present only in infants, but now known to be present in adults as well, differs from the more abundant white adipose tissue (WAT) by dissipating energy through thermogenesis as a result of increased activity of the mitochondrial uncoupling protein (UCP-1). Recently evidence shows that exercise activates mitochondrial UCP-1 in subcutaneous WAT cells resulting in conversion of WAT to BAT-like adipocytes (Beige or BRITE adipose tissue). Various factors including natriuretic peptides, interleukin-6 and myokines (irisin, fibroblast growth factor 21, and ß-aminoisobutyric acid) appear to mediate the effects of exercising muscle on subcutaneous adipocytes. Decreased amount and/or activity of BAT might contribute to the lower energy expenditure and extreme difficulty in weight-control in PWS. Lower levels or decreased myokine production could result in failure to convert subcutaneous WAT to Beige or BAT-like adipocytes, and therefore minimize or negate the otherwise beneficial metabolic effects of exercise. Direct measurement of peak oxygen uptake in PWS adults show that this population has markedly lower VO2 values compared with normal BMI-matched controls. BAT activity in vivo can be accurately measured only by performing PET/CT scans which include administrating radioactive tracers. For ethical reasons, direct assessment of BAT is not possible for purposes of clinical research in PWS individuals. The investigators propose to study humoral responses to exercise in 16 (8 males) PWS adolescents and young adults and compare results with responses in a similar number of sex, age, and BMI-matched controls. At an initial one-hour meeting study participants will learn to perform aerobic (treadmill) exercise and resistance training under the supervision of an experienced exercise physiologist. Exercise intensity will be assessed by direct measurement of VO2 max. On a different day, a blood sample will be drawn before and immediately at the conclusion of the same exercise regimen. Blood samples will be assayed for irisin, interleukin-6, atrial natriuretic peptide, FGF-21, in addition to glucose, growth hormone, cortisol, norepinephrine, and lactate. The investigators hypothesize that PWS participants will show weaker humoral responses to similar exercise regimens compared to normal control subjects. Data showing lower levels of myokines, such as irisin, following exercise in PWS might suggest that inadequate conversion of WAT to BAT-like adipocytes in subcutaneous adipose tissue results in decreased thermogenesis and abnormally low energy expenditure in this population. Potentially, development of pharmacologic agents which mimic irisin or other myokines by activating UCP-1 and converting WAT to BAT-like adipocytes could offer a new approach to weight-control in PWS individuals.
Radiation therapy remains the principal treatment for nasopharyngeal carcinoma (NPC). Although intensity modulated radiation therapy (IMRT) has been widely used in China nowadays, radiation dermatitis is still common. It has an impact on pain and quality of life, and if severe, may lead to interruption of the radiation schedule for the patient. Trolamine (Biafine; Genmedix Ltd, France) is commonly prescribed at the beginning of radiotherapy for preventing acute radiation-induced skin toxicity in China. However, as long as grade ≥2 radiation dermatitis is developed, trolamine is not allowed to use any more. Medical Radiation Protectants (FORRAD®) is a new kind of topical agents for prevention and treatment of radiation dermatitis. It could be used during the course of radiotherapy, even when grade ≥2 dermatitis is developed. This randomized phase II study is aimed to assess the effectiveness and safety of Medical Radiation Protectants (FORRAD®) for the prevention and treatment of acute radiation-induced dermatitis of grade 3 or higher during IMRT for patients with NPC, compared with trolamine.
There are no set national guidelines for the management of postpartum bladder. There is little evidence on the management of postpartum urinary retention and many hospitals have implemented their own postpartum bladder care protocols. Acupuncture has been implemented as an alternative course of treatment for urinary retention with reports of spontaneous restoring of micturition in all of the patients. The investigators aimed at examining if acupuncture is a useful tool to treat postpartum urinary retention.