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…
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…
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…
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 the use of immunotherapy nivolumab and the targeted therapy cabozantinib prior to removal of the kidney will increase the number subjects who are without any visible kidney cancer in their body at some point during the course of treatment. The study will also evaluate the changes that nivolumab and cabozantinib…
The purpose of this study is to study two experimental drugs called canakinumab and spartalizumab produced by Novartis to see if: It is safe and feasible to give canakinumab and spartalizumab prior to radical nephrectomy; canakinumab and spartalizumab can kill cancer cells and bring immune cells into the kidney cancer when given to human subjects prior to…
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.
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…
Axitinib (AG-013736) is an investigational (experimental) drug that is being studied in patients with metastatic pheochromocytoma/paraganglioma. The main goal of this study is to find out if axitinib is able to stop tumors from growing, or shrink tumors in patients with this type of cancer.
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…
This research study is a phase II clinical trial. Phase II clinical trials test the safety and effectiveness of an investigational treatment to learn whether the intervention works in treating a specific disease. Investigational means that the intervention is being studied. The Food and Drug Administration (FDA) has approved Nivolumab as treatment for…
This study will test whether cabozantinib in combination with nivolumab plus ipilimumab is more effective (works better) than nivolumab plus ipilimumab alone in treating patients with advanced kidney cancer who have not received prior treatment for their cancer. This study will also examine how safe cabozantinib is in combination with nivolumab plus…
We are doing this study to test a drug called MGD009. MGD009 is like an antibody, which is a protein in your blood that helps get rid of germs in your body. MGD009 is made to attach to cancer cells and to T-cells, which are a part of your immune system. Certain T cells have the ability to kill other cells, including cancer cells. By attaching to cancer…
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…
This study is for patients who have renal cell carcinoma (RCC; a type of kidney cancer) and are at a high risk of disease coming back (disease recurrence) following either nephrectomy (surgical procedure to remove all or part of a kidney) or metastasectomy (removal of cancerous growth that has spread away from your kidney). The purpose of this study is to…