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…
The TARGET-HBV study engages an observational research design to conduct a comprehensive review of therapeutic outcomes for patients with chronic hepatitis B (HBV) who are currently taking tenofovir alafenamide (TAF) relative to those patients following other treatment regimens. The study will address important clinical questions regarding the management of…
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 the study is to find out if study drug belimumab is safe and effective in treating children with active lupus who are also taking other lupus medicine. Belimumab (also known as BENLYSTA hasbeen approved in the United States, Canada, and Europe for the treatment of adults with active SLEwho are receiving other lupus medicines but not yet…
NOTE: YOU MUST HAVE HIV AND HAVE EVER HAD HEPATITIS C TO BE ELIGIBLE FOR THIS STUDY!! ............... For individuals who have both HIV and Hepatitis C virus (HCV), heavy drinking poses serious risks to their health. We do not yet know which interventions are effective at helping individuals with HIV and HCV drink less. The goal of the study is to compare…
This study will compare two experimental drugs, named Sofosbuvir/Velpatasvir/GS-9857 Fixed-Dose Combination (SOF/VEL/GS-9857 FDC) and Sofosbuvir/Velpatasvir (SOF/VEL) FDC for the treatment ofchronic genotype 3 hepatitis C virus (HCV) infection in patients who have cirrhosis, or scarring of the liver. The purpose of this study is to determine the efficacy,…
The goal of this study is to test a new lupus drug. This drug interrupts the function of a chemical in the body called IL-6, and IL-6 may be overactive in people with lupus. ALX-0061 is a study drug that will be administered subcutaneously to subjects with moderate to severe active, seropositive Systemic Lupus Erythematosus (SLE) compared to placebo.
The purpose of this study is to evaluate the effectiveness, safety, and tolerability of study drugs Sofosbuvir, Velpatasvir and GS-9857 in comparison to Sofosbuvir and Velpatasvir in patients infected with HCV. Information about any side effects that may occur will also be collected.
The purpose of this study is to determine if Acthar gel is a safe and effective therapy for patients with membranous (Class V) lupus nephritis. Class V lupus nephritis is associated with the development of chronic kidney disease and end-stage renal (kidney) disease, and there is no clear therapy for treatment. Currently used therapies arent completely…
This study will compare the effectiveness of three different FDA approved medicines for Hepatitis C Genotype 1 patients: HARVONI , Viekira Pak and Zepatier and will observe subject experiences before, during, and after HCV treatment. Subjects will be asked to respond to several survey questionnaires and if they would allow their leftover blood collected for…
The purpose of this study is to evaluate the efficacy, safety, and tolerability of SOF/VEL/GS- 9857 FDC in patients infected with Hepatitis C (HCV), and previously treated unsuccessfully. Information about any side effects that may occur will also be collected.
This study is for patients who have been diagnosed with systemic Lupus erythematosus (SLE). SLE is a disease in which the body mistakenly attacks healthy tissue. It can affect the skin, joints, kidneys, brain and other organs. The purpose of this study is to test the effects of an investigational (being tested) study drug, CC 220, in order to find out if CC…
This research trial is being conducted to determine the safety and efficacy of HARVONI (an FDA-approved Hepatitis C Virus medication) in HCV (genotype 1, 4, 5, an 6) infected patients who also have advanced heart failure or chronic lung disease. HARVONI has not been tested in patients with HCV and heart failure or chronic lunch disease. Subjects will take…
The purpose of this clinical trial is to learn about the ability of an experimental treatment XmAb5871 to maintain lupus disease activity improvement achieved by a brief course of disease-suppressing intramuscular (IM) steroid therapy in lupus patients.
The purpose of this study is to learn more about the effects of the combination of telaprevir peginterferon alfa2b (Peg-IFN) and ribavirin (RBV) in children with chronic hepatitis C. Investigators will look at how these study drugs may affect childrens bodies and how children break down and eliminate telaprevir. Participants of this study will receive Peg-…
The purpose of this study is to evaluate the safety and tolerability of an experimental investigational drug called ixazomib citrate (MLN9708) in patient with Lupus Nephritis. Lupus nephritis is a condition when the kidney is affected in the autoimmune disease known as systemic lupus erythematosus (SLE). SLE is a disease in which the immune system (the body…
If you have active Systemic Lupus Erythematosus, also known as SLE or Lupus, you may be interested to learn about a clinical research study that is being conducted to study the safety and effectiveness of an investigational medication called ustekinumab for active Lupus. Eligible study participants will be provided with study medication and study-related…
The purpose of this study is to determine how safe and effective using three medications (pegylated-interferon, ribavirin and boceprevir) are in curing HCV in patients with end stage kidney disease on hemodialysis. Participants will be prescribed these three medications and will be followed closely through treatment, then for 6 months afterwards. During…
We are studying a medication to see if it is effective in reducing the disease activity of systemic lupus erythematosus (SLE), which is the most common form of lupus. You may qualify for the Achtar study if you have persistently active SLE, are 18 years of age or older, and: Have rash and/or arthritis as part of your SLE symptoms Are currently taking…
The purpose of this study is to test the safety and effectiveness of the study drug Obinutuzumab and to find out what effects, good or bad, it may have as an additional therapy in treating your lupus nephritis symptoms.
The purpose of this study is to see if study drug Sofosbuvir/Ledipasvir fixed-dose combination + Ribavirin (SOF/LDV FDC + RBV) are effective in treating people infected with the hepatitis C virus with genotypes 1 and 4, who have advanced liver disease with permanent liver damage (cirrhosis) and may be showing signs of liver failure or who have undergone…
This study will compare two experimental drugs, named Sofosbuvir/Velpatasvir/GS-9857 Fixed-Dose Combination (SOF/VEL/GS-9857 FDC) and Sofosbuvir/Velpatasvir (SOF/VEL FDC) for 12 weeks for the treatment of chronic hepatitis C virus (HCV) infection in subjects who have previously been unsuccessfully treated for chronic HCV.. An experimental drug is one that…