We are conducting a research study on the effect of high insulin levels on the buildup of excessive liver fat ("fatty liver disease") in people at risk for type 2 diabetes. We are seeking adult volunteers, ages 18-65, who have obesity with a body mass index of 30-45, and have been diagnosed with, or are at risk for, prediabetes and metabolic…
The goal of this early feasibility study is to gain initial insight into the basic safety and performance of transluminal (through the blood vessels) implantation of the PASCAL System's implant (composed of man-made materials). We are trying to evaluate the safety and performance of the PASCAL System with Optimal Medical Therapy (OMT) (also known as…
Early Age-Related Hearing Loss Investigation (EARHLI) is a study to obtain information on how a hearing aid-based intervention can prevent cognitive decline in those at risk for Alzheimer's Disease and Alzheimer's Disease Related Dementias (AD/ADRD). Age-related hearing loss (ARHL) is the third most common chronic condition in older adults. The…
This is a research study for patients who have Tricuspid Regurgitation (TR), a condition that occurs when the three leaflets of the heart's tricuspid valve do not close properly causing blood to leak backward with each heartbeat. Since some of the blood leaks backward, the heart has to pump more blood with each beat to push the same amount of blood…
We are conducting a research study on how insulin controls blood sugar in both healthy people and those at risk of type 2 diabetes. We are seeking adult volunteers, aged 18-65, who have body mass indices either in the lean range (18-25 kg/m2) or in the obesity range (30-45 kg/m2) but who do not have prediabetes or diabetes. Participants will undergo a…
We are recruiting individuals and/or families with members under the age of 65 who have dementia or are experiencing memory problems. Our initial screening can be completed in person or over the phone. The evaluation will take about 1 to 1.5 hours per person and includes a: 1. Blood sample (5 tablespoons) or saliva (1 teaspoon) collection: These blood…
For over 30 years, The Columbia University Alzheimer's Disease Research Center (ADRC) has worked with thousands of participants who have helped provide important insights into how the brain ages and why Alzheimer's disease may develop. We are actively recruiting adults 65 years of age and older who share our commitment to be part of this…
The purpose of this study is to determine if measuring blood levels of proteins called POMC, AgRP, and chromogrannin A (CGA) can be used to diagnose and track tumor growth and recurrence in patients that have ACTH-dependent Cushing's syndrome, non-secreting pituitary tumors, and other neuroendocrine tumors. We invite you to participate if you have: a…
Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders in women ofreproductive age, affecting about 7% of this population when using the strictest diagnostic criteria and frequently presents in adolescence and young adulthood. Diagnostic features of PCOS includehyperandrogenism and ovulatory dysfunction. Additionally, both obese and…
This study is for individuals who have Cushings disease and want to join voluntarily in this study to find out if a study drug called osilodrostat (LCI699) is safe and has beneficial effects in people who have Cushings disease. Cushings disease is a rare but debilitating disease. Cushings disease is caused by a benign tumor of the pituitary gland. The tumor…
The Edwards Cardioband Tricuspid Valve Reconstruction FIT valve repair system is a prospective, single arm, multi-center study to evaluate the safety and performance of the Cardioband Tricuspid System. The Edwards Cardioband Tricuspid Valve Reconstruction System is intended for patients with tricuspid regurgitation deemed to be potential candidates for…
This is a prospective, single-arm, multi-center, early feasibility study. This research study is for patients who have Tricuspid Regurgitation (TR), a condition that occurs when the three leaflets of the heart's tricuspid valve do not close properly causing blood to leak backward with each heartbeat. Since some of the blood leaks backward, the heart…
A significant focus of healthcare research is aimed at biomarker discoveries in brain and heart diseases in particular, and their impact on the human body in general. MRI is a key component in these healthcare services. It provides a non-invasive and non-ionizing approach to diagnose pathologies along with significant internal and external contrast…
This study is of a drug called CT1812, that is being evaluated as a possible treatment for Dementia with Lewy Bodies. In this study, which is carried out at multiple sites in the country, participants receive either CT1812 at one of two doses or placebo. The duration of the study is up to about 35 weeks. Participants receive blood tests, cerebrospinal fluid…
This is a research study for persons with memory problems that examines the utility of performing positron emission tomography (PET) scans for the brain amyloid protein found in Alzheimer's disease.
This is a research study for patients who have Tricuspid Regurgitation (TR), a condition that occurs when the three leaflets of the hearts tricuspid valve do not close properly causing blood to leak backward with each heartbeat. Since some of the blood leaks backward, the heart has to pump more blood with each beat to push the same amount of blood forward.…
The purpose of these studies is to gain an understanding of the mechanisms that promote weight loss and improved glucose control. The ultimate goal is to identify therapeutic pathways for obesity and diabetes as a way to optimize surgical procedures and discover novel non-surgical targets for safe and effective drug therapy. Participants with obesity will…
We are recruiting healthy volunteers, aged 18-65, for a research study on the buildup of excessive liver fat ("fatty liver disease") in people with or at risk for type 2 diabetes because their bodies are resistant to the actions of the blood sugar-lowering hormone, insulin. To do this, we seek to induce temporary insulin resistance in 10-12…
Columbia Medical Center is recruiting for a study to test whether the drug oxytocin can improve symptoms of emotion and behavior (e.g. apathy) in people with frontotemporal dementia. The study will last for up to 24 weeks (6 months). This is a crossover study, which means that each participant will receive both oxytocin and placebo (medically inactive…
The purpose of this study is to investigate how well weekly injections of the growth hormone drug NNC0195-0092 works in adults with growth hormone deficiency. Growth hormone deficiency is a disorder that involves the pituitary gland (a small gland located at the base of the brain). The gland produces growth hormone and other hormones (chemical messengers of…
Polycystic ovary syndrome (PCOS) is a common disorder. Young women with PCOS have irregular or absence of menstruation and excessive acne and or hair on their bodies. They may have multiple cysts on their ovaries. Adolescents and women affected with PCOS are at risk of developing abnormalities in their blood including high fat, low HDL cholesterol (good…
This is a 22-week treatment, multicenter, double-blind, placebo-controlled, parallel group, Phase 2 study to evaluate the efficacy, safety, and tolerability of the study drug E2027, in participants with Dementia with Lewy Bodies (DLB) Lewy Body Dementia - LBD. The main purpose of this research study is to find if a new drug called E2027 works in people who…
The purpose of this study is to confirm the effectiveness and safety of LCI699 in treating patients with Cushing's disease. Patients will be treated with the invesitigational drug LCI699 at doses up to 60 mg a day, and possibly for a short period of time with placebo. A placebo is a dummy drug ("pill") with no active medicine inside.
This study is for patients who have been diagnosed with acromegaly and have been treated with the injectable medications ocreotide or lanreotide for at least 6 months. You should have had the same dose for at least 4 months, and be adequately controlled. The purpose of this study is to compare the safety and effectiveness of an investigational new drug…
This is a research study for subjects who have had gastric bypass surgery at least one year ago, and currently have type 2 diabetes. This study is looking at the treatment of diabetes after gastric bypass surgery. About 40% of patients do not experience diabetes remission after gastric bypass surgery. Of the patients who initially go into remission, about…