There are about 28871 clinical studies being (or have been) conducted in Canada. 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.
Postoperative endophthalmitis, a possible severe complication of cataract surgery, is an infection of the anterior chamber of the eye caused by bacterial contamination and colonization through surgical incisions. Bacteria are thought to originate mainly from the patient's skin and studies show that bacteria are commonly found in the anterior chamber following surgery. However, innate immune defences are usually able to control and eliminate bacterial growth before postoperative endophthalmitis occurs. Also, due to the low incidence of postoperative endophthalmitis, it is difficult to accurately evaluate preventative methods. This study will examine the efficacy of topical preoperative administration of gatifloxacin (a new fourth generation fluoroquinolone antibiotic) on reduction of bacterial contamination of the anterior chamber following cataract surgery. If the antibiotic is shown to lower bacteria count in cultures from anterior chamber fluid, it has the potential to lower the incidence of postoperative endophthalmitis. Patients undergoing cataract surgery will be notified and asked to participate in the study by the physician in advance of the surgery, provided they do not possess any exclusion criteria. The participants will be randomly split into two groups; one group will receive topical application of gatifloxacin prior to surgery, while the other group will receive no eye drops. During surgery, a small sample of anterior chamber fluid will be removed from the eye and cultured in both broth and enrichment media for all subjects. Bacterial growth, i.e., colony forming units (CFUs), will be used as an indicator of the bacterial contamination of the fluid.
The purpose of this study is to perform a series of islet transplants using the Edmonton protocol. Patients with Type I Diabetes and glycemic lability, severe hypoglycemia or hypoglycemic unawareness will undergo transplantation of purified pancreatic islets from cadaveric donors into the portal vein, followed by steroid-free immunosuppression as per the Edmonton protocol (IL-2 antibody induction, sirolimus, low dose tacrolimus-based immunosuppression). The goals of the transplant are to improve glycemic control, stabilize blood sugars and achieve insulin independence.
The purpose of this study is to find out whether computerized tomography will be better than plain radiographs in determining pediatrics scaphoid fractures.
RATIONALE: Stent placement may help reduce symptoms caused by the tumor. Photodynamic therapy uses a drug, such as porfimer sodium, that becomes active when it is exposed to a certain kind of light. When the drug is active, tumor cells are killed. This may be an effective treatment for cholangiocarcinoma. It is not yet known whether stent placement and photodynamic therapy using porfimer sodium are more effective than stent placement alone in treating cholangiocarcinoma. PURPOSE: This randomized phase III trial is studying stent placement and photodynamic therapy using porfimer sodium to see how well they work compared to stent placement alone as palliative treatment in treating patients with stage III or stage IV cholangiocarcinoma that cannot be removed by surgery.
The purpose of the study is to evaluate whether it is advantageous for adolescents who have recovered from depression after a 6 to 12 week course of antidepressant treatment to stay on the treatment a further 6 months or is it just as helpful to stop the medication after recovery. The hypothesis is that adolescents with major depression who recover from the 6 to 12 week trial of citalopram will be less likely to have a recurrence of depression over a 6 month period if continued on the citalopram as compared to those who discontinue the medication.
Localized scleroderma or morphea is a fibrotic disease, imiquimod induces cytokines which inhibit fibrotic activity . We propose that topical imiquimod 5% cream is efficacious and safe in treating plaque-type morphea. Twenty adults will be enrolled for a pilot study. A screening and baseline clinic visit will be required for each patient enrolled in the study. Each visit will involve completing a medical history, skin examination, digital pictures, histologic examination if the patient consents and an ultrasonographic score. One morphea plaque will be treated with topical imiquimod 5% cream, and another morphea lesion with vehicle cream. Patients will be asked about side effects (local and systemic). Patients will be followed up in the clinic at 3, 6 and 9 months of therapy, and 3 months following end of treatment period (month 12).
The purpose of this study is to examine the safety and efficacy of XERECEPT (human Corticotropin-Releasing Factor, or hCRF) compared to dexamethasone in patients with primary malignant glioma who require increased dexamethasone doses to control symptom of peritumoral brain edema.
Purpose of the study is to determine the effect of probiotic lactobacilli on the vaginal flora and cytokine profile during pregnancy, and the incidence of preterm labour in women at high risk for preterm birth.
Renal blood flow is inversely related to obstruction. We propose that this imaging will be as effective as the diuretic renogram in the functional diagnosis of obstruction. Furthermore, dynamic contrast CT scanning may also add anatomic information necessary for the surgical treatment.
This study is a comparison of core needle biopsy with fine needle aspiration biopsy in the evaluation of lung nodules.