Bariatric surgery and a once-weekly glucagon-like peptide-1 medicine both cause major weight loss in teens, but their effects on mouth and gut bacteria and on damaged blood fats tied to metabolism are still unknown. This study will collect saliva, stool, and routine blood samples from adolescents before treatment and six months later to see how these…
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…
We are researchers at Columbia studying the learning and decision making. We are looking for participants over the age of 18, who have been prescribed Trizepatide for weight loss. Participants will be asked to complete an MRI scan and play computer games. Participants earn $25 per hour. Help us understand how the GLP-1 agonists affect brain and cognition!
The Physiology of the Weight Reduced State (POWERS) is a national research study designed to discover and learn what happens to the human body after weight loss and to learn why some people regain their lost weight. Understanding why this happens could help health professionals improve strategies for successful weight loss maintenance after weight loss.…
The purpose of this study is to evaluate if genetic variations are associated with the amount of weight loss with diet and while taking an FDA-approved medication for weight loss. The participation lasts ten months and includes six in-person visits at CUIMC with blood sampling and questionnaires, virtual nutritional counseling, and taking an oral weight…
TReatment for ImmUne Mediated PathopHysiology (TRIUMPH) is a multi-center, three-arm clinical trial of immunosuppressive therapy for children with acute liver failure. This is a double-blind study, so the study doctors and participants will not know to which arm the participants are assigned. The study will determine if corticosteroids or equine anti-…
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…
My Hand Project for Stroke Patients: We are testing a robotic device to help people who had a stroke use their weak hand more easily. This research study would involve you wearing a hand robot that helps open and close your fingers in order to use your hand to pick up common everyday objects. During the study, you may be asked to try out different…
We are recruiting volunteers, aged 18-70, 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 temporarily induce or accentuate insulin resistance in 14…
We are seeking adult volunteers with body mass index in the obesity range (30-45 kg/m2) to come in for a single study visit where they answer some health questions and have a small volume of blood drawn (25 cc/1.7 tbsp). We will measure levels of the blood sugar-lowering hormone insulin as well as glucose (sugar), certain fats, and other molecules related…
The purpose of this research study is to determine if an investigational drug, VS-01, will help in the treatment of acute-on-chronic liver failure (ACLF) compared to supportive care (standard of therapy). ACLF is a potentially life-threatening condition characterized by a group of signs that occur together (syndrome) in patients with a late stage of…
This program aims to help improve adult caregivers of stroke survivors ability to care for their stroke survivors with their daily needs. Each session will cover different topics which are important for caregivers to understand in order to best engage in their new role. Topics will include, but are not limited to: bathing, toileting, dressing, transfers,…
The purpose of this research is to learn about types of practice that may benefit stroke survivors when learning to use their weaker arm to perform a task. Potential participants will be asked to come to Columbia University Irving Medical Center (CUIMC) for a screening session. Eligible participants will be randomized into two groups with different practice…
We're conducting a research study on how much insulin is needed to control blood sugar in people who are made temporarily resistant to insulin's effects. Insulin is the main hormone (chemical signal) that the body uses to lower the levels of sugar in the blood. We are interested in looking at insulin levels because we think that lowering insulin…
The Amulet IDE trial is a prospective, randomized, multi-center active control worldwide trial, designed to evaluate the safety and effectiveness of the AMPLATZER Amulet Left Atrial Appendage Occluder. Subjects will be randomized in a 1:1 ratio between the Amulet LAA occlusion device (treatment) or a Boston Scientific WATCHMAN LAA closure device (Control).…
We are looking for adults who have had a stroke to participate in testing of a new robotic device for the hand. If you had a stroke over six months ago and now have difficulty using your hand, you may qualify to participate in this study. Time commitment: ~4 weeks, 3x/week, Compensation: $50 per testing visit, $25 per training session.
Stroke often results in limitation of arm movements, from which many people do not fully recover. We believe that early and intensive therapy is important to enhance recovery of arm movements after stroke. We are doing this research study to see how much arm movements improve with intensive therapy in patients have had a stroke in the past 5 weeks. We will…