Texas Paid Clinical Trials

1.1. Primary Objectives To determine if MRI DWIBS can accurately identify suspicious lesions previously categorized on mammography and sonography as potentially malignant. We will also validate whether DWIBS-MRI ADC values can be used to accurately differentiate benign from malignant lesions. Additionally, because it is not known whether tumor type or growth rate (Ki67 values) will affect our results, we will include these parameters in our analysis. Once we validate the use of DWIBS-MRI ADC values to determine malignancy, can we establish an ADC threshold value to decrease the number of false positive biopsies that are performed while still maintaining a zero false negative rate? This study will also assess the correlation between ADC values and the Ki-67 proliferative index of malignant lesions. Read Less

The purpose of this registry is to evaluate information to determine which operations and treatments for gastroesophageal reflux disease or similar diseases of the stomach, esophagus or digestive tract are providing the most benefit including the long-term effects of treatment (or no treatment) and the progression of the disease over time. Read Less

Participants are being asked to participate in a research study conducted by Shih-Chiao Tseng, PT, Ph.D. at Texas Woman's University. This research study is to determine whether low-intensive brain stimulation can enhance learning of a leg movement task. The investigators also want to know if brain stimulation can improve the nerve function and walking performance. Our goal is to understand any relationship between brain stimulation and overall movement control improvement. Participants have been invited to join this research if they have had a stroke before or they are healthy adults aged 21 years or older. Research evidence shows stroke can induce permanent brain damage and therefore may cause a person to have trouble learning a new task. This in turn may significantly impact the recovery of motor function in stroke survivors. In addition, the investigators also want to know how a healthy person learns this new leg task and see if her/his learning pattern differs from a stroke survivor. This study comprises two phases: Phase I study investigates short-term effects of brain stimulation on leg skill learning and only requires two visits to TWU. The total time commitment for Phase I study will be about 6.5 hours, 3.5 hours on the first visit and three hours on the second visit; Phase II study is an expanded version of Phase I study to investigate long-term effects of brain stimulation on leg skill learning and requires to complete 12 visits of exercise training paired with brain stimulation over a four-week period and additional one visit for follow-up test. The total time commitment for Phase II study will be about 20 hours, a total of 18 hours for 12 exercise training sessions and two hours for a follow-up test. The investigators hypothesize that people with chronic stroke will show a slower rate of acquiring this leg skill as compared to healthy adults. The investigators also hypothesize that co-applying brain stimulation with 12 sessions of exercise training will enhance skill learning of this leg task for people with chronic stroke and this 12-session exercise program may exert beneficial influences on the nerve function and leg muscle activation, and consequentially improve motor control for walking. Read Less

The purpose of this study is to assemble a multicenter prospective cohort of patients with enterococcal bloodstream infections (BSIs) to provide data on outcomes of patients with enterococcal BSIs for sample size calculations for future trials, as well as to characterize enterococcal isolates causing BSIs in order to comprehensively dissect the molecular epidemiology of infecting organisms for future studies. Read Less

This is a multicenter randomized study designed to determine if ultrasound indicated cerclage reduces the incidence of spontaneous preterm birth <34 weeks in asymptomatic women with twin gestations and cervical length ≤15mm, diagnosed by transvaginal ultrasound between 16 to 23 6/7 weeks of gestation. Read Less

Neoadjuvant chemotherapy (NACT) can induce complete pathologic response (pCR) in approximately 35-55% of patient with triple-negative breast cancer (TNBC). These patients have excellent long term survivals. On the other hand patients with residual disease exhibit a high rate of local or metastatic. Although it has been successful in some regards, randomized trials have shown similar rates of mortality between patients receiving NACT and adjuvant chemotherapy (ACT). The goal of this study is to understand the molecular biology (gene expression signature) driving treatment-resistant TNBC. The investigators are planning to identify targetable genetic alterations which may help to optimize adjuvant therapy for the patient with residual TNBC. Read Less

While advancements in cardiac magnetic resonance (CMR) have improved image quality, it is unclear how these improvements are connected to the clinical evaluation of individuals with cardiovascular disease. The aim of this large prospective registry revolves around 4 key principles: 1) utilize CMR to gain additional pathophysiologic insights into cardiovascular disease, 2) understand how CMR compares to alternative cardiovascular diagnostic modalities, 3) determine how CMR affects clinical management decisions, and 4) establish a link between CMR findings and long term prognosis in patients with known or suspected cardiovascular disease. The ultimate aim is to utilize CMR to improve patient outcomes. CMR techniques to be studies include function, fibrosis, and flow. Focus areas include valvular heart disease, ischemic heart disease, cardiomyopathies, and vascular disease. Read Less

To develop a tissue bank library for patients with parathyroid disease who have undergone surgery and/or biopsy, and/or who may undergo surgical intervention at M. D. Anderson Cancer Center or outside centers, and/or all patients seen through the Parathyroid Center at participating sites, whether or not the patients undergo treatment for their disease. The tissue bank will contain both normal parathyroid tissue and diseased tissue, and will provide a resource for the ongoing study of parathyroid disease and management. Read Less

The objective of this trial is to assess the safety and effectiveness of the study device in subjects with degenerative mitral valve disease receiving a mitral valve repair without cardiopulmonary bypass (treatment group) when compared to subjects receiving mitral valve repair using standard surgical techniques with cardiopulmonary bypass (control group). Read Less

The goal of this data review study is to collect data to learn more about thyroid, parathyroid, and adrenal disease. Read Less

The Primary objective of this study is to determine whether patients who receive sugammadex immediately after tracheal extubation will exhibit a decrease in the incidence of postoperative residual paralysis and an associated decrease in the incidence of postoperative respiratory depression (which can precede critical respiratory events, CRE). The Secondary objectives are to: a) determine whether patients receiving sugammadex will have a normal TOF ratio (>0.90) indicative of full neuromuscular recovery in the PACU; and b) to improve patient safety by documenting whether postoperative respiratory depression (decreased MV below 80% and 40% of predicted MV as assessed by a Respiratory Volume Monitor) is due to opioid administration vs. postoperative residual neuromuscular block (by comparing postoperative VAS scores and total opioid administered). Read Less

Objectives: The aim of the present study is to assess the significance of metabolomics and genetics in diagnosing and survival evaluation for pNET in the periodic follow-up of MEN1 patients. Aim 1: To evaluate the relationship of serum global metabolic profiles with subsequent development of aggressive PNET and evaluate patients survival in a nested case-control study of MEN1 patients who have developed aggressive PNETs (cases) and MEN1 patients who have developed non-aggressive PNETs (controls). Aim 2: Validate the top serum metabolites identified from Aim 1 in MEN1 patients who have developed aggressive PNETs and MEN1 patients who have developed non-aggressive PNETs, using a targeted metabolomics approach. Aim 3: Prospectively identify the potential miRNA biomarkers of serum with miRNA sequencing in MEN1 patients who have developed aggressive PNETs (cases) and MEN1 patients who have developed non-aggressive PNETs (controls). Aim 4: Validate the potential miRNA biomarkers identified from Aim 1 in MEN1 patients who have developed aggressive PNETs and in MEN1 patients who have developed non-aggressive PNETs, using a targeted qRT-PCR approach (in serums), as well as to see the relationship of potential miRNA biomarkers with patients survival. Read Less