The overall goal of this project is to determine whether short sleep duration is a risk factor for cardiovascular disease in women. We are currently looking for healthy, non-smoking women to participate in a sleep study. You must be willing to come to Columbia University Medical Center once a week for two 6-week periods and regularly sleep at least 7-9…
The goal of this study is to better understand why some people have managed to lose weight and keep it off while others have not. We are recruiting people who have lost weight and kept it off as well as healthy non-dieters with overweight or obesity who are not trying to lose weight. Study participation involves computer tasks, brain imaging, and eating a…
This study is recruiting people who have a family history of a neurodegenerative diseases, such as Alzheimer's disease or other form of dementia including frontotemporal dementia and prion disease, who are interested in doing predictive genetic testing. Participants will complete questionnaires prior to testing and then 1 month and 6 months after…
This study focuses on the effects of aerobic conditioning on cardiovascular function and inflammatory response. Eligible participants will complete an exercise stress test, laboratory visit, and cognitive testing session at three specific time points over the course of the study. Once the initial set of appointments is complete, participants are randomly…
This pilot study is designed to examine the effect of a novel type of lifestyle intervention, administered via a smartphone app, on weight loss and improvement of metabolic health in individuals with overweight and/or obesity. A mobile application will be used to document eating behavior through photos. In addition, participants will receive personalized…
The LOTUS Edge Valve System is intended to improve aortic valve function in symptomatic subjects with severe aortic stenosis who are at intermediate risk for standard surgical aortic valve replacement (SAVR), including those who have a bicuspid native valve. The study will include subjects presenting with symptomatic severe aortic stenosis who are…
This 2-phase study aims to explore ways to predict who will respond well to the FDA approved weight loss drug lorcaserin and to understand the mechanisms that develop which limit drug efficacy. Subjects will be recruited for a 5-week crossover study (phase 1) with lorcaserin and placebo followed by treatment with lorcaserin for 24 weeks (phase 2). Phase 1…
The purpose of this study is to use Positron Emission Tomography (PET) to identify changes in brain chemistry that may cause an episode of depression. This study will be carried out in approximately 30 subjects. PET is a technique that provides "pictures" of chemical connections in the brain by injecting and monitoring a radioactive substance. In…
Almost 40,000 people get HIV in the U.S. each year and almost all infections occur via sexual contact, especially male-to-male contact. The number of new infections has decreased slightly each year; however, we need other HIV prevention tools, including an effective HIV vaccine, to better protect people from HIV infection. An HIV vaccine is the best long-…
Columbia University is conducting a contraceptive clinical trial looking at two intrauterine devices, one of which is investigational. Pre-menopausal women ages 16-40 who are generally healthy, sexually active, at risk for pregnancy, and are not at risk for sexually transmitted infections may qualify.
The purpose of this study is to evaluate the performance of a remote patient monitoring device against more established wired monitoring devices during common activities and low to moderate exercise.The goal of this study is to determine how the Zephyr BioPatch will work compared to more established wired monitoring devices. This study involves one visit,…
Take the Online Men's Health Survey (OMHS) today! Human Immunodeficiency Virus (HIV) and syphilis disproportionately affect men who have sex with men (MSM); however, this phenomenon is not well understood and is understudied in the United States. The OMHS study is being performed to help improve STI prevention and treatment services in the United…
This study is evaluating genomic screening in Ashkenazi Jewish and Hispanic communities. Genomic screening is done by collecting a blood sample and looking at a person's genes to learn if they are at high risk for certain health problems like cancer or heart disease or are at risk to have a child with a genetic condition. The study is designed to…
We are looking for healthy, HIV-negative individuals 18 to 50 years old who are interested in our studies that test antibodies for HIV prevention. Antibodies are one of the natural ways that our bodies fight or prevent infection. We are testing an antibody called VRC07-523LS against HIV. We will ask you to complete a brief questionnaire to find out if you…
We are seeking your opinions regarding different organ donation policies, via a 5-10 minute survey; responses are all anonymous. Everyone who completes the survey will have the option to enter a draw for a $5 gift card.
We are seeking healthy volunteers (HIV-negative) for a study seeing if HIV is associated with faster biological aging among older African American adults, whether faster biological age is related to health conditions that typically occur in older people and whether these conditions might be due to stress or over-activity of certain parts of the immune…