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…
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 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…
You may want to join this study because your heart condition may respond to a device-based therapy called cardiac modulation therapy called the OPTIMIZER System. The OPTIMIZER INTEGRA CCM-D System, also known as a Cardiac Contractility Modulation Defibrillator, is an investigational device system that combines CCM therapy and ICD therapy into one device.…
This study will develop a data registry of patients diagnosed with uveal melanoma (UM). This registry will provide data that will be used to support the development of novel therapies for this disease. In this study, we are focused on trying to better understand how uveal melanoma behaves and how it is treated at different medical centers around the country.
The ALLEVIATE-HF study is a prospective, randomized, multi-site, interventional, investigational device exemption (IDE) study. The purpose of the study is to gain experience with utilization of an integrated device diagnostic-based risk stratification algorithm to guide patient care in subjects with NYHA class II and III heart failure. The study will…
We are doing this study to collect sensor and heart failure (HF) event data that will be used to develop and test new diagnostic (not providing therapy) features for the insertable cardiac monitor (ICM) systems. ICMs are small devices implanted under the skin and are now widely used for the long-term monitoring and detection of abnormal heart rhythms. ICMs…
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 purpose of this research study is to understand if aspirin is needed in patients heart failure implanted with the HeartMate 3. Patients with devices like the HeartMate 3 take two blood thinner medicines, specifically warfarin and aspirin. Patients implanted with devices like the HeartMate 3 experience both clotting and bleeding complications. Data…
We are seeking adults with cardiovascular disease who identify as Black/African American or LatinX, and/or their caregivers, as well as community health workers working in primarily Black/African American or LatinX neighborhoods of NYC, to participate in a brief (30-minute) interviews over the phone or Zoom to discuss attitudes and perceptions related to…
The purpose of this research is to evaluate the safety and performance of an experimental system called the Aortix System. The system is being designed for use in patients hospitalized for a worsening of their heart failure symptoms and who also show signs of strain on their kidneys. The Aortix System includes a pump, which we hope may help the heart and…
This is a Phase I study of a weekly intra-patient escalation dose regimen with IMCgp100 in patients with metastatic uveal melanoma (mUM). To help decide whether or not patients can take part in a research study looking at a new form of treatment for advanced uveal melanoma, their blood need to first be tested to determine their Human Leukocyte Antigen (HLA…
The purpose of this study is to evaluate the NuPulseCV intravascular ventricular assist system (iVAS), a device similar to an Intra-aortic Balloon Pump (IABP) that helps circulate blood from the heart throughout the rest of the body. This study aims to: (1) See if the iVAS improves your blood circulation (2) Better understand how the iVAS device could…
The purpose of the treatment part of the study is to find out what effects drug crizotinib has, good and/or bad on people with "high risk" uveal melanoma after surgery or radiation for the eye. It is thought that giving crizotinib to patients with "high risk" uveal melanoma can lower the chance the cancer will come back. Uveal melanoma…
The purpose of the study is to characterize von Willebrand Factor (VWF) profiles in patients receiving HeartMate 3 (HM3) and compare them to HeartMate II (HMII) Left Ventricular Assist Device (LVAD).
The purpose of this study is evaluate the benefits and safety of using the combination of drugs, AEB071 and BYL719 to treat patients with an advanced form of uveal melanoma. The study will have two parts. The first part twill test different dose levels of each drug.Once the highest safe dose level is found, another group of patients will be treated at that…
You are invited to join voluntarily in a clinical research study to find out if the drug LXS196 alone or in combination with HDM201 is safe and has beneficial effects in people who have metastatic uveal melanoma. The purpose of this study is to determine the highest dose of LXS196 that can be given safely without unacceptable side effects as a single drug…
This research study is being done to see if the study drug, IMCgp100, works and is safe as treatment for subjects with uveal melanoma who also test positive for HLA-A*0201. In this study IMCgp100 will be compared to three standard treatments: dacarbazine (a chemotherapy drug), ipilimumab (an immunotherapy drug), or pembrolizumab (an immunotherapy drug).…
The purpose of this study is to find out what effects, good and/or bad, intermittent dosing of the medication Selumetinib will have on you and your uveal melanoma. Selumetinib is a medication that blocks (or turns off) MEK, a protein activated in some uveal melanoma cells. Selumetinib is a MEK inhibitor. Blocking MEK may stop your cancer from growing.