المتخصصون في المجالات الطبية

تتوفر أدناه التجارب السريرية الحالية.

69 الدراسات في Surgery
(الدراسات المفتوحة فقط).

تصفية قائمة الدراسات هذه حسب الموقع، والحالة والمزيد.

1. Multi-Center Prospective Validation Study of VTE Risk Prediction Tool in Trauma Patients

   Rochester, Minn.

   Almost one-half million people suffer venous thromboembolism annually in the United States, and one-third die from this disease. Massive bleeding from injury accounts for half of early deaths after trauma. This study aims to prevent the deaths and suffering associated with venous thromboembolism and bleeding by identifying the individual person at high risk of these complications in order to take preventive measures.

2. A Study to Establish a Living Breast Organoid Biobank for Translational Research

   Rochester, Minn., Jacksonville, Fla., Scottsdale/Phoenix, Ariz.

   Researchers at Mayo Clinic are developing a Biobank of adult stem cell-rich breast organoids, a new research resource to facilitate normal and cancer stem cell research. Subjects in the Biobank will provide samples of excess breast tissue, complete a health questionnaire, and allow access to medical records now and in the future. The Biobank serves as a library for researchers; instead of having to look for volunteers for each new project, researchers can use samples from the Biobank as well as share information already collected.

3. A Study Evaluating the Prevalence, Incidence and Predictors for Development of the Impulse Control Disorders in Patients with Prolactinomas Treated with Dopamine Agonist Therapy

   Rochester, Minn., Jacksonville, Fla.

   The purpose of this study is to establish incidence and prevalence of Impulse Control Disorders (ICDs) in patients with prolactinomas treated with dopamine agonists (DA), to determine the predictors of ICD development, and to establish a predictor scoring system that could be subsequently validated and applied prior to initiation of DA.

4. Innovative CAR-TIL immunotherapy against melanoma

   Jacksonville, Fla.

   The chimeric antigen receptor (CAR) T-cell therapy is a revolutionary cellular immunotherapy strategy that has transformed the treatment of B cell malignancies by engineering T cells to recognize B cell specific tumor markers; however, attempts to treat solid tumors with CAR T-cells have identified unique challenges that have rendered CAR T cells less effective against these tumors. Conventional CARs are designed to target tumor-associated antigens, but antigenic heterogeneity and the variable nature of surface antigen expression provide escape mechanisms for solid tumors from CAR T-cell attack. [1, 2] The solid tumor stroma acts as an immunosuppressive cloud that impedes the homing of peripheral CAR T-cells into the tumor microenvironment (TME). The hostile TME can also drive CAR T-cells to functional exhaustion and metabolic dysfunction, thus blunting the therapeutic efficacy of CAR T-cells.[3] Oncolytic viruses or radiation that generate local inflammation in the TME have been shown to promote T cell homing and infiltration [4] but do not address the exhaustion of tumor infiltrating lymphocytes (TILs). The PD-1/PD-L1 cascade allows tumors to evade the immune system by suppressing T cell function within the TME. [5, 6] An ideal adoptive cellular therapy must possess the ability to not only return to the site of the tumor but must also retain cytotoxic potential after a recognition event. We present here a CAR design that allows PD-1 to recognize PD-L1 on the tumor; however, the intracellular CAR design is one that results in T cell activation as opposed to inhibition. We hypothesize that targeting melanoma with a PD-1 (MC9324) CAR TIL therapy would capitalize on the tumor homing machinery of the TIL to drive the CAR TIL to the tumor where engagement of the PD-1 domain of the CAR with PD-L1 on the tumor cell would result in T cell cytotoxic killing.

5. A Study to Evaluate the Effectiveness of a Healthy Living Weight Loss Program in Obese Patients Undergoing Bariatric Endoscopy on Weight Loss Outcomes

   Rochester, Minn.

   The purpose of this study is to compare weight loss, improvement of comorbidities, improvement of lipid profile, blood sugar in patients undergoing endoscopic sleeve gastroplasty or intragastric balloon between patients who are in a weight loss program and those who are not.

6. Outcomes of Open and Endovascular Repair for Ruptured and Non-Ruptured Internal Iliac Artery Aneurysms

   Rochester, Minn.

   The purpose of this study is to evaluate different techniques to repair internal iliac artery aneurysms. Report short and long term clinical outcomes with markers of pelvic perfustion.  Compare partial pelvic perfusion preservation with bilateral complete preservation.

7. A Study to Analyze Gender Congruence After Gender Confirmation Surgery

   Rochester, Minn.

   The purpose of this study is to assess the success and effectiveness of gender confirmation surgeries on eliminating gender incongruence and improving life satisfaction, and compare patient’s status with the preoperative results.

8. A Study of Mesenchymal Stem Cell (MSC) Adherence and Vessel Wall Penetration Following Intra-arterial Delivery Subsequent to Controlled Balloon Angioplasty

   Jacksonville, Fla.

   The purpose of this study is to determine the amount of MSCs that adhere to predetermined areas of arterial wall following balloon angioplasty vs no intervention, and to characterize the effect of intra-arterial injection of MSCs on predetermined areas of arterial wall via transcriptome analysis.

9. A Study to Evaluate the Process of Aging in Human Atherosclerosis

   Rochester, Minn.

   The purpose of this study is to critically test the hypothesis that senescent-cell derived factors (cell aging), in particular IGFBP3, suppress the innate repair capacity of vascular smooth muscle cells (VSMC) in human atherosclerosis.