All Clinical Trials

The impaired ability to suppress an inappropriate but pre-potent response (response inhibition; RI) characterizes several debilitating clinical problems, including obsessive-compulsive and related disorders (OCRD) such as obsessive-compulsive disorder, trichotillomania, and skin picking disorder. There is a critical need to develop an effective and durable treatment for OCRDs with demonstrable evidence for improving impaired RI. The purpose of our project is to examine the impact of a novel computerized intervention, response inhibition training (RIT), on neural indices of RI, and examine the mechanistic link between engagement of the neural RI targets and change in OCRD symptoms. To this end, this project will conduct a randomized clinical trial for individuals with OCD, trichotillomania, and/or skin picking disorders. Participants will be randomly assigned to 8 to 16 sessions of computerized RIT or a computerized placebo training. Various clinical, behavioral, and brain-imaging data will be acquired to evaluate the training effects at baseline, post-training, and 1-month follow-up periods. Read Less

This study is being done to answer a question on whether a Web App-based Lifestyle Physical Activity Promotion Program is effective in improving depressive symptom experience of midlife Korean American women (WPAPP-K). Read Less

This research will use biobehavioral approaches to generate understanding about the linkages between stressful life events, sleep duration and timing, and alcohol use in young adults, with a long-term aim of developing effective preventative interventions for alcohol use disorders. Read Less

This longitudinal study looks to quantify the testing timeline, operational barriers, and outcomes of biomarker-guided therapy in a large, community-based, and largely unselected patient population with early stage and advanced stage, treatment-naive non-small cell lung cancer, whether squamous or non-squamous. Read Less

This randomized control trial study among Pre-exposure prophylactic users (PrEP) aims to learn and determine the efficacy of Screening, brief intervention, and referral to treatment (SBRIT) in reducing the risk of alcohol use. The main questions it aims to answer are: 1. How alcohol use impacts the PrEP continuum and to understand how early intervention and treatment approach affects alcohol use and PrEP adherence. 2. Investigate the effectiveness of the SBIRT intervention in preventing hazardous alcohol use and its impact on gut dysbiosis in PrEP users. 3. To determine alterations in the gut microbiome (dysbiosis), intestinal homeostasis, systemic inflammation, and markers of liver disease associated with hazardous alcohol use among PrEP users. Read Less

This study is funded by the HEAL Initiative (https://heal.nih.gov/). Based on Preliminary Studies (PSs), the research team developed and pilot-tested an evidence-based Web App-based information and coaching/support program for cancer pain management (CAPA) that was culturally tailored to Asian American breast cancer survivors using multiple unique features. However, CAPA rarely considered depressive symptoms accompanying pain in its design or components, and PSs indicated the necessity of further individualization of the intervention components of CAPA due to diversities in the needs of ABD. The purpose of the proposed 2-phase study is to further develop CAPA with additional components for ABD and the individual optimization functionality (CAI) and to test the efficacy of CAI in improving cancer pain experience of ABD. The specific aims are to: a) develop and evaluate CAI through an expert review and a usability test (R61 phase); b) determine whether the intervention group (that uses CAI and usual care) will show significantly greater improvements than the active control group (that uses CAPA and usual care) in primary outcomes (cancer pain management and cancer pain experience including depressive symptoms) from baseline to post 1-month and post 3-months; c) identify theory-based variables (attitudes, self-efficacy, perceived barriers, and social influences) that mediate the intervention effects of CAI on the primary outcomes; and d) determine whether the effects of CAI on the primary outcomes are moderated by selected background, disease, genetic, and situational factors. This study is guided by the Bandura's Theory and the stress and coping framework by Lazarus and Folkman. The R61 phase includes: (a) the intervention development process, (b) a usability test among 15 ABD, 15 family members, and 15 community gatekeepers; and (c) an expert review among 10 experts in oncology. The R33 phase adopts a randomized repeated measures control group design among 300 ABD. Long-term goals are: (a) to extend and test CAI in various healthcare settings with diverse subgroups of ABD, (b) examine the costeffectiveness, sustainability, and scalability of CAI in the settings, and (c) translate CAI into health care for ABD. Read Less

One goal of this research is to conduct a non-inferiority trial of telerehabilitation versus in-office care to provide follow-up training to individuals with low vision to enhance their quality of life by using magnification devices and/or visual assistive mobile apps for important daily activities, such as reading and/or other valued tasks. This is a high priority given the increasing prevalence of low vision, paucity of low vision rehabilitation providers, and barriers related to access to care, such as transportation and geography, which can be essentially eliminated with telerehabilitation. Another goal of this project is to determine whether significant changes in environmental data collected by Bluetooth low energy beacon sensors can be used as a solution to monitor and indicate when low vision patients' have abandoned the use of their magnification devices, which has the potential to substantially enhance patient management by providing timely low vision rehabilitation services. Read Less

Nitric Oxide (NO) is an important molecule that is produced naturally in the body and that helps maintain healthy blood flow. Low availability of NO contributes to many diseases while administration of NO is therapeutic. In addition to being made naturally in the body, NO can be obtained through the diet via the Nitrate-Nitrite-NO cycle. Nitrate, which is abundant in green leafy vegetables and beetroot juice, is partially converted to nitrite by oral bacteria. The nitrate and nitrite are taken up into the blood and nitrite is converted into NO. Remaining nitrate in the blood is taken back up into the mouth by salivary glands and the cycle continues. Emerging studies suggest that the Nitrate-Nitrite-NO cycle may contribute to cardiovascular health. In addition, there have been many studies where dietary nitrate is given to increase NO and treat various conditions. The current study rests on the premise that the quality of the oral microbiome plays a major role in the Nitrate-Nitrite-NO cycle and hence cardiovascular health and the efficacy of dietary nitrate interventions. Investigators have begun to identify oral bacterial species that are effective nitrite producers as well as though that are nitrite depleters (those that interfere with nitrite production from nitrate). In laboratory experiments, certain bacterial species have been shown to block nitrate to nitrite conversion by other oral bacteria. These nitrite depleting species are found in a commercially available oral probiotic designed to improve oral health. The purpose of this study is to examine if use of the probiotic negatively affects the Nitrate-Nitrite-NO cycle. Nitrate to Nitrite conversion will be assessed by measuring plasma levels of nitrite before and after consumption of nitrate-rich beetroot juice. Dietary nitrate to plasma nitrite conversion will assessed at baseline and after one week of consumption of the probiotic or a placebo (follow-up). The primary hypothesis of this study is that participants that consume the probiotic will have lower nitrate to nitrite conversion at follow-up compared to baseline and that there will be no significant change in nitrate to nitrite conversion between baseline and follow-up for participants who consume the placebo. While this study does not aim to treat any specific disease, it is intended to elucidate a basic physiological function that may be relevant to cardiovascular health and certain NO-based therapeutics. Read Less

Evaluate the Safety and Pharmacokinetics of MBX 2109 in Adult Subjects with Normal and Impaired Renal Function Read Less

In the proposed study, investigators will assess the safety and feasibility of cycles of a fasting mimicking diet (FMD) and its effect on Multiple Sclerosis Quality of Life (MSQOL) in relapsing MS (RMS) patients treated with standard disease modifying therapies (FMDMS). To test the primary hypothesis, investigators will compare the composite quality of life score in terms of improvement in disability, fatigue, and cognitive function with the fasting protocol, as compared to a Mediterranean diet (control) group alone. Further, investigators hypothesize that the effects will remain for at least 6-months after the last FMD cycle. The Mediterranean diet (MD) has been chosen as the control diet to minimize baseline dietary differences among patients. It has been trialed for feasibility in Multiple Sclerosis patients and used in a previous human FMD trial for MS patients where a FMD followed by MD was shown to have positive effects on people with MS. Read Less

A single-center, open-label baseline controlled imaging study designed to assess whether brain tau fibril uptake of flortaucipir as measured by PET correlates with cognitive status of individuals with and without brain tau fibrils. Read Less

A Randomized, Multi-Center, Pivotal Efficacy and Safety Study Evaluating the RESET System for Glycemic Improvement in Patients with Inadequately Controlled Type 2 Diabetes and Obesity, the STEP-1 Study. A multi-center, double-blinded, randomized, sham-controlled trial to evaluate the safety and effectiveness of the RESET System plus moderate intensity lifestyle and dietary counseling compliant with 2024 ADA Standard of Care as compared to a sham control receiving moderate intensity lifestyle and dietary counseling. Both the treatment and sham group will practice medical management compliant with STEP-1 Study Guidelines. Patients will be randomized 3 (RESET):1 (Sham). Read Less