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.
Postural Orthostatic Tachycardia Syndrome (POTS) affects approximately 500,000 - 3 million Americans. This number will only increase due to the large number of patients experiencing POTS due to "long COVID." POTS patients experience several symptoms, including tachycardia, palpitations, dizziness, and pre-syncope or syncope, among others. POTS can be very debilitating and not only affect patients physically but also emotionally and financially. It takes an average of four years and seven doctors for POTS patients to achieve a diagnosis and it is often a frustrating and negative experience fraught with misdiagnoses, stigma, and depression and anxiety. Recent research demonstrates that mHealth technology may be one way that POTS patients can improve their experience in the healthcare system by providing objective data to their healthcare providers. Patients may also better take care of themselves through symptom monitoring and instant patient education via mHealth technology. The two study aims are: 1) Developing a mHealth app to improve the delay to diagnosis and the quality of life of POTS patients; and 2) Evaluate the usability and feasibility of the mHealth app and study design. To achieve these aims, researchers in this study will work with a programmer and leaders from the mHealth Application Modernization and Mobilization Alliance (MAMMA) and stakeholders (patients, caregivers, and providers) to co-design a mHealth app for POTS patients, including key educational components guided by the IDEA model, an instructional risk communication approach. A group of diagnosis-seeking POTS (n=20) patients will pilot test the app and provide feedback for improvement as well as evaluate its usability. Results from this study will allow researchers to acquire necessary data to apply for external funding to conduct a larger clinical trial to evaluate its influence on health outcomes, such as patient experience during visits with physicians, perceived stigma, and time to diagnosis.
Smokers partnered with other smokers (i.e., dual-smoker couples) represent ~2/3 of all smokers. Dual-smoker couples (DSCs) are less likely to try to quit smoking and more likely to relapse during a quit attempt, reducing overall smoking cessation rates and representing a high-risk clinical population. Despite their high prevalence and risk for persistent smoking, however, there are limited data on smoking cessation interventions among DSCs. Building on previous research that suggests a) financial incentive treatments (FITs) are effective at increasing quit rates and b) dyadic adaptations of FITs are feasible for implementation in DSCs, the proposed study will systematically two versions of FITs to enhance smoking cessation among DSCs. In addition to determining the efficacy of these dyadic FITs for smoking abstinence in DSCs, the investigators will consider the cost and cost effectiveness of each adaptation as well as mechanisms of change to inform future implementation research. The investigators will additionally consider secondary outcomes including abstinence during treatment and long-term abstinence maintenance after end of treatment. The investigators will address these questions in a three-group randomized controlled trial (RCT). In all conditions, individuals who have smoking partners (i.e., targets) will receive usual care (combination fast and slow acting Nicotine Replacement Therapy + quitting resources). In two conditions, participants will receive incentives for abstinence at three time points (1, 3, and 6 months post-baseline). In the SFIT condition, only the target in a couple will be offered incentives; in the DFIT condition, both target and partner will be offered incentives. Primary efficacy outcome is % point-prevalence abstinence at 6 months post-baseline among targets. Secondary outcomes are point-prevalence abstinence at 1 and 3 months during the treatment and 6 months post-treatment (12-months post-baseline), as well as partner outcomes. The investigators will evaluate possible mechanisms of change including partner support and individual and partner motivation to quit as well as evaluate the cost and relative cost of each abstainer within and across condition. These data on the efficacy, mechanisms, and costs of FITs for DSCs will inform population level implementation and promote successful quitting in this treatment refractory population.
The purpose of this project is to improve our understanding of peripheral circadian rhythms in humans. Circadian clocks are present in most tissues of the body with importance for optimal physiological function, health, and behavior. This project will utilize simulated jetlag protocols to systematically test novel hypotheses about the regulation of peripheral circadian rhythms in humans. Specifically, we will examine how changes in the time of when we are exposed to light and the timing of when we eat impacts proteins in the blood and saliva that represent rhythms from clocks in the brain (e.g., rhythms of the hormones melatonin and cortisol coordinated by the brain) and rhythms from clocks in body tissues (e.g., proteins made by immune and bone cells, and cells in the stomach and liver). We also aim to discover new blood-based biomarkers of peripheral rhythms in humans. We anticipate our findings will be the first step in developing novel circadian based treatments for aligning peripheral clocks under conditions such as jetlag, and for developing novel circadian biomarkers that will advance our scientific understanding of circadian rhythms.
The goal of this study is to understand whether providing information to women with a strong desire to avoid future pregnancy about how tubal sterilization compares to long-acting reversible contraceptives improves perceived access to available contraceptives. Participants will: - Complete a baseline survey - Receive access to web-based educational resources - Complete a brief follow up survey immediately after exploring these web-based resources - Complete a follow-up survey 3 months after enrolling The investigators will compare outcomes among participants provided with access to a new website (intervention) summarizing recent patient-centered outcomes research (PCOR) comparing interval laparoscopic tubal sterilization and long-acting reversible contraception (LARC) to control participants provided with access to the existing Planned Parenthood website on tubal sterilization.
The overall aim of the study is to address unmet health-related social needs and reduce outcome disparities among AYA cancer survivors. Aim 1 aimed to refine a needs navigation model in partnership with expert consultants. Aim 2 and 3 will involve the deployment and pilot testing of the adapted needs navigation intervention among caregivers of younger AYAs with cancer.
The study will compare the clinical outcomes of the two procedures, open flap debridement (OFD) compared to open flap debridement with leukocyte and platelet-rich fibrin (L-PFR) as well as differences in patient postoperative pain perception.
Older adults with type 2 diabetes are at higher risk for severe hypoglycemia and its related complications (including hospitalization and death) when taking insulin. This study proposes to evaluate, in a randomized clinical trial, a strategy of safe insulin prescribing based on an educational program that leverages continuous glucose monitoring to support older adults at high risk for hypoglycemia. If the aims of this project are achieved, this novel care strategy could be widely applied to reduce severe hypoglycemia episodes in older, high-risk adults with type 2 diabetes.
A closed sinus augmentation is performed for dental implant placement.
The goal of this observational prospective study is to determine the health impact of parenthood on United States (US) people with CF in the era of CF transmembrane regulator protein (CFTR) modulators. The investigators will collect physical and mental health data to comprehensively evaluate the impact of parenthood in CF with widespread highly effective CFTR modulator use. The main hypotheses this study aims to examine are: H1: Parents with CF and moderate-to-severe depression have more rapid change in ppFEV1 (percent predicted forced expiratory volume in one second) versus those with mild or no depression. H2: Parents with CF who have more parental responsibility and/or stress have more rapid ppFEV1 (percent predicted forced expiratory volume in one second) change than those with less responsibility/stress H3: Parents using CFTR modulators have decreased ppFEV1 (percent predicted forced expiratory volume in one second) change versus those not using CFTR modulators Participants will complete quarterly surveys during the first year of parenthood and biannual surveys, thereafter, using the computer-based survey system on an iPad protected for infection control or via personal device or computer via emailed survey link.
The purpose of the current study is to examine the effects of a dietary supplement containing plant derived phenolics at two different dose levels in otherwise generally healthy adults with risk factors (high BMI at dyslipidemia and/or pre-diabetes) for body fat composition. The primary hypothesis is that supplementation with plant derived phenolics will decrease body fat composition compared to placebo.