There are about 173942 clinical studies being (or have been) conducted in United States. 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.
The investigators objective is to determine if urinary electrolyte abnormalities exist in only one or both kidneys in participants with and without a history of kidney stones. To meet this objective, the investigators are going to take urine samples from each kidney at the time of kidney stone surgery. The samples will then be analyzed for absolute and relative differences in the concentrations of urine electrolytes, such as calcium.
This study will look into the effects of Botulinum Toxin in patients with primary cervical dystonia. The effects will be determined by neck muscle activity measurements and brain function activity measurements. The goal of the study is to try to identify markers of the effects of Botulinum toxin.
Penile squamous cell carcinoma (PSCC) is relatively rare but exhibits higher incidences in less developed countries. PSCC is a highly aggressive malignancy characterized by early spread. Pembrolizumab has recently been FDA-approved for the treatment of melanoma but will serve as the investigational agent for this penile cancer study.
REVOLUTION will be a US multicenter observational registry in scope and governed by a steering committee of approximately 8 experts in NSCLC and outcomes research. The primary goal of the registry is characterizing patterns of use for NSCLC therapy. REVOLUTION will be a multicenter registry enrolling approximately 2,500 patients. Additional patients limited to those with EGFR mutations may be enrolled following the initial study period as needed to ensure adequate sample sizes needed to examine primary questions of interest in the EGFR mutant population. Patients will be enrolled over a three year period across approximately 25 geographically diverse academic as well as community based sites within the US. The five year follow-up period will ensure robust survival data for correlations with clinical, tumor, and treatment variables. The target of 2,500 patients is meant to ensure adequate numbers of NSCLC patients with particular characteristics of interest including patients with adenocarcinoma, and EGFR mutations and effectively evaluate these patients with respect to key outcomes of interest including overall survival, time to progression, stage at progression, secondary metastases including brain metastases (at diagnosis and progression), comorbidity burden, and performance status at index date. The study design allows a cross-sectional perspective with collection of detailed patient and clinical characteristics at enrollment followed by longitudinal assessment of clinician and patient-reported endpoints every three months. Centralized follow-up will be conducted by having sites upload patient data following each visit via the web-based data system, with patients who do not show up for site visits being contacted via telephone by the Duke Clinical Research Institute (DCRI) call center. Site recruitment and patient enrollment will be weighted based upon provider specialty and ability to enroll patients with NSCLC with the specified inclusion criteria.
The investigators hypothesize that tumor cell killing by cytotoxic chemotherapy exposes the immune system to high levels of tumor antigens.The combination of Paclitaxel/Carboplatin and Pembrolizumab may result in deeper and more durable responses compared with standard chemotherapy alone.
This study is being conducted to demonstrate that perampanel given as adjunctive anti-epileptic treatment is superior to placebo in reducing the number of drop seizures in participants with inadequately controlled seizures associated with Lennox-Gastaut Syndrome (LGS).
The purpose of this study is to evaluate the maximum tolerated dose (MTD) or recommended Phase 2 dose (RP2D), safety and efficacy of TAK-659 in combination with nivolumab in participants with advanced solid tumors.
The purpose of this research is to characterize the effect of teriflunomide on the activation of B-cells, as well as its capacity to modify B-cell cytokine secretion. The in-vitro identified effects of teriflunomide on the expression of B-cell activation markers, costimulatory and antigen presenting molecules, as well as on cytokine secretion, will then be confirmed in a cohort of Relapsing Remitting Multiple Sclerosis (RRMS) patients treated with this medication.
This phase I trial studies the side effects and best dose of ascorbic acid when given together with bevacizumab in treating patients with high grade glioma that has come back (recurrent). Monoclonal antibodies, such as bevacizumab may interfere with the ability of tumor cells to grow and spread. Ascorbic acid contains ingredients that may prevent or slow the growth of high grade glioma. Giving bevacizumab and ascorbic acid together may work better in treating patients with high grade glioma.
The growing population of obese adults is predicted to create a large public health burden in the next few decades. This study examines function of small blood vessels providing blood flow to skeletal muscles, to test if younger obese individuals (≤40 years old, BMI >30) are already displaying reductions in blood vessel function. This study will test if the signals blood vessels use to increase blood flow are changing in these same subjects. Findings from this study may help create treatments to delay or prevent some of the negative effects of obesity on vascular health.