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Displaying 1 - 57 of 57
Condition: Transplant / Liver Transplant
Investigator: Marcus Pereira, MD, MPH
Status: Currently Recruiting
This research is being done to better understand rejection in transplant recipients with HIV who receive kidneys from donors with HIV compared to donors without HIV. If you have any questions regarding this study, please contact the Transplant Clinical Research Center (TCRC).
Condition: Obesity
Investigator: Ilene Fennoy, MD
Status: Currently Recruiting
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…
Condition: Obesity
Investigator: Joshua Cook, MD, PhD
Status: Currently Recruiting
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…
Condition: Obesity
Investigator: Daphna Shohamy, PhD
Status: Currently Recruiting
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!
Condition: Obesity
Investigator: Faris Zuraikat, PhD
Status: Currently Recruiting
The purpose of this study is to assess energy balance during two different diet periods.
Condition: Obesity
Investigator: Rudolph Leibel, MD
Status: Currently Recruiting
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.…
Condition: Obesity
Investigator: Judith Korner, MD
Status: Currently Recruiting
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…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Marco Bertucci Zoccali, MD
Status: Currently Recruiting
The purpose of this study is to research and evaluate safety and effectiveness of the administration of bone marrow mesenchymal stem cell (bmMSC) derived extracellular vesicles product, DB-3Q, the study drug for perianal fistulizing Crohns disease. The study will enroll up to 36 participants across multiple sites. Your participation in this study will be…
Condition: Transplant / Liver Transplant
Investigator: Sloane Heller, Md
Status: Currently Recruiting
The purpose of this study is to understand how liver disease affects thinking and memory, both before and after transplant. Participants will take a cognitive test, which will be a series of tasks and questions similar to a video game, at home on their own computers, tablets, or phones. This will take approximately 45 minutes, and participants will do this…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Bo Shen, MD
Status: Currently Recruiting
The Takeda study drug used in this study is vedolizumab, a monoclonal antibody. Monoclonal antibodies are proteins made in laboratories that act like proteins in our bodies called antibodies. Vedolizumab acts specifically in the gut and works by preventing certain immune cells from going to the gut and helps reduce inflammation that can cause the symptoms (…
Condition: Transplant / Liver Transplant
Investigator: Yael Nobel, MD, MS
Status: Currently Recruiting
A complication that can occur after liver transplant (LT) is rejection, in which the patient's immune system damages the transplanted liver. This complication can be prevented with immunosuppressant medications, which are routinely used after LT. The main purpose of this study is to determine if bacteria in the intestine (gut microbiome) may affect the…
Condition: Transplant / Liver Transplant
Investigator: Elizabeth Verna, MD
Status: Currently Recruiting
The purpose of this observational research study is to identify things that contribute to outcomes in patients with alcohol-associated liver disease who are being considered for liver transplant and who have less than 6 months of sobriety. We will look at many things including images of the liver and heart, blood tests, urine tests, stool tests and liver…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Marco Bertucci Zoccali, MD
Status: Currently Recruiting
If your doctor has determined that you have a diagnosis of Ulcerative Colitis (UC), you may qualify for treatment with Sacral Nerve Stimulation (SNS). The purpose of this study is to evaluate the safety and effectiveness of SNS in study participants who have UC. While the investigational medical device used in this research study has been studied and…
Condition: Transplant / Liver Transplant
Investigator: Elizabeth Verna, MD
Status: Currently Recruiting
The main purpose of this study is to deeply characterize cognitive function in liver transplant recipients, differentiate among different causes of cognitive impairment, and identify contributors to cognitive impairment. Participants will receive a comprehensive neurological exam, cognitive assessment, neuropsychological testing, MRI of the brain, and blood…
Condition: Transplant / Liver Transplant
Investigator: Elizabeth Verna, MD
Status: Currently Recruiting
The purpose of this study is to evaluate the safety of siplizumab when used as induction immunosuppression in patients with primary sclerosing cholangitis or autoimmune hepatitis undergoing liver transplantation. Induction immunosuppression drugs are very potent anti-rejection drugs that are given immediately after transplantation to prevent rejection.…
Condition: Transplant / Liver Transplant
Investigator: Elizabeth Verna, MD
Status: Currently Recruiting
The purpose of this study is to learn more about the effects of functional status (also known as "frailty") using a physical test in patients with liver disease on their health outcomes. We are enrolling patients prior to liver transplantation, and will continue to assess their functional status post transplant. If you have any questions regarding…
Condition: Obesity
Investigator: Joshua Cook, MD, PhD
Status: Currently Recruiting
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…
Condition: Transplant / Liver Transplant
Investigator: Marcus Pereira, MD, MPH
Status: Currently Recruiting
The primary objective is to evaluate long-term outcomes in transplant recipients with HIV who receive livers from donors with HIV compared to donors without HIV. If you have any questions regarding this study, please contact the Transplant Clinical Research Center (TCRC).
Condition: Obesity
Investigator: Joshua Cook, MD, PhD
Status: Currently Recruiting
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…
Condition: Obesity
Investigator: Joshua Cook, MD, PhD
Status: Currently Recruiting
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…
Condition: Transplant / Liver Transplant
Investigator: Tomoaki Kato, MD
Status: Currently Recruiting
The purpose of this sponsor initiated multi center registry is to collect additional data on the performance of the FDA Approved OCS Liver System and post transplant clinical outcomes for patients who are transplanted with an OCS Liver perfused donor liver in the real world setting. If you have any questions regarding this study, please contact the…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Le-Chu Su, MD
Status: Closed
The purpose of this study is to compare the efficacy and safety of two standard-of-care drugs, Risankizumab (Skyrizi) versus Vedolizumab (Entyvio), over 48 weeks to compare how well these drugs work in patients with moderate to severe Ulcerative Colitis (UC). This study is being conducted at approximately 285 research centers worldwide and is expected to…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Bo Shen, MD
Status: Closed
The purpose of this study is to assess the safety and effectiveness of GIE Medical's ProTractX3 TTS drug coated balloon (DCB) for the treatment of benign stricture in the bowel. This study is conducted to see whether this new drug coated balloon dilation device can treat strictures and reduce the rate of recurrence. Up to 215 subjects will participate…
Condition: Transplant / Liver Transplant
Investigator: Steven Lobritto, MD
Status: Closed
In this study, we will collect information from the medical record of pediatric liver transplant recipients who received live vaccines as part of their routine post-transplant care. This data will be combined with data from other centers across the United States and Canada to help give us a better understanding of the safety and efficacy of live vaccines in…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Bo Shen, MD
Status: Closed
The purpose of this study is to compare the effects, good or bad, of RO7790121 versus placebo inpatients with ulcerative colitis. In this study, you will get either RO7790121 or placebo. You will have the opportunity to participate in an open-label extension phase (getting the active drug - RO7790121), if your condition has not improved. RO7790121 is an…
Condition: Gastrointestinal and Digestive Diseases / Barrett's Esophagus
Investigator: Julian Abrams, MD
Status: Closed
This research study will look at a newer treatment option for Barrett's Esophagus (BE) which uses nitrous oxide to freeze unwanted tissue. The most commonly used treatment method is Radiofrequency Ablation (RFA) which uses heat to destroy the pre-cancerous tissue. Nitrous Oxide ablation using the C2 CryoBalloon Focal Ablation System, an FDA-cleared…
Condition: Transplant / Liver Transplant
Investigator: Steven Lobritto, MD
Status: Closed
The purpose of the study is to collect scientific data on pediatric liver transplantation to learn more about how children do after liver transplant. Collecting these data is expected to help researchers learn more about liver transplant in children. This information may improve medical care of your child and other children who need and who have received…
Condition: Transplant / Liver Transplant
Investigator: Marcus Pereira, MD, MPH
Status: Closed
The primary objective of this study is to determine if an HIV-infected donor liver (HIVD+) transplant is safe with regards to major transplant-related and HIV-related complications. This study will evaluate if receiving a liver transplant from an HIV-infected deceased liver donor is safe with regards to survival and major transplant-related and HIV-related…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Marco Bertucci Zoccali, MD
Status: Closed
The purpose of this study is to evaluate the safety and performance of sacral nerve stimulation (SNS) using an FDA-approved device called InterStim Neurostimulator (InterStim) in study participants with active moderate to severe ulcerative colitis. The goal of the study team is to reduce inflammation and symptoms associated with these conditions. This…
Condition: Obesity
Investigator: Joshua Cook, MD, PhD
Status: Closed
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…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Shilpa Ravella, MD
Status: Closed
This is a global prospective, observational, multi-center registry to evaluate the long-term safety profile for patients with short bowel syndrome (SBS) who are treated with teduglutide in a routine clinical setting. The registry will also evaluate the long-term clinical outcomes in patients with SBS. SBS patients treated and not treated with teduglutide…
Condition: Transplant / Liver Transplant
Investigator: Robert Brown, MD, MPH
Status: Closed
The purpose of this study is to determine if the administration of non-absorbable antibiotics (rifaximin) for the first three months after liver transplant period will reduce the amount of fibrosis (scarring of the liver) in liver transplant patients with hepatitis C virus (HCV) by lowering serum LPS (a protein in the blood that comes from the bacteria in…
Condition: Gastrointestinal and Digestive Diseases / Barrett's Esophagus
Investigator: Julian Abrams, MD
Status: Closed
The purpose of this study is to evaluate a new technique called Wide Area Transepithelial Sample 3-Dimensional Esophageal Biopsy (WATS) with computer assisted method of analysis of brush biopsy. This study will assess whether performing standard biopsies in addition to the WATS brush biopsies identifies more patients with dysplasia than does performing…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Joseph Picoraro, MD
Status: Closed
The purpose of this study is to characterize the pharmacokinetics (PK) and safety of intravenous (IV) pantoprazole in patients 1 to 16 years old who are candidates for acid suppression therapy.
Condition: Gastrointestinal and Digestive Diseases / Barrett's Esophagus
Investigator: Julian Abrams, MD
Status: Closed
C2 Therapeutics is currently enrolling patients to participate in the Coldplay 3 clinical trial. Coldplay 3 is evaluating the effectiveness of the Coldplay CryoBalloon Focal Ablation System in patients with Barrett's esophagus who have not yet received treatment. Participants will undergo treatment with the Coldplay CryoBalloon Focal Ablation System…
Condition: Transplant / Liver Transplant
Investigator: Tomoaki Kato, MD
Status: Closed
The purpose of this study is to evaluate the safety and efficacy of FS Grifols as an adjunct to hemostasis during parenchyomous tissue open surgical procedures. Baseline assessments will be performed within 24 hours prior to the scheduled surgery. There will be a physical assessment and a blood draw at the first study visit. Subjects will be randomly…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Simon Lichtiger, MD
Status: Closed
The purpose of this study is to see how safe and effective study drug GS-5745 is in treating people with moderate to severe Ulcerative Colitis. This is a randomized, double-blind, placebo-controlled study. Placebo-controlled means that you may receive an injection with no medicine in it, but looks like GS-5745. Randomized means you will be selected by…
Condition: Gastrointestinal and Digestive Diseases / Barrett's Esophagus
Investigator: Julian Abrams, MD
Status: Closed
The purpose of the study is to compare two types of endoscopic treatments in patients with Barretts esophagus (BE) with abnormal cells (dysplasia); radiofrequency ablation (RFA) and hybrid argon plasma coagulation (H-APC). H-APC is a newer technique in the treatment of BE and has not been adequately studied and is not approved by the FDA for routine use.…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Simon Lichtiger, MD
Status: Closed
The purpose of this clinical research study is to test the effects of an investigational (being tested) study medication, GED-0301, in order to find out if GED-0301 can or cannot improve the symptoms of Crohns disease. The study will test 2 doses of GED-0301 compared to placebo. The placebo is a dummy pill that contains no study medication (or GED-0301),…
Condition: Transplant / Liver Transplant
Investigator: Tomoaki Kato, MD
Status: Closed
The purpose of this study is to determine if Nexavar (sorafenib), the study medication, is effective in preventing cancer recurrence in high risk patients following liver transplantation. The purpose of this study is to determine if sorafenib is a safe and effective treatment option for preventing the recurrence of liver cancer in high risk subjects…
Condition: Transplant / Liver Transplant
Investigator: Adam Griesemer, MD
Status: Closed
This is a prospective, randomized, multi-center, controlled study for subjects with end stage liver disease who require a liver transplant, comparing whole liver preservation via hypothermic machine perfusion (HMP) using the LLT System with Vasosol with livers preserved via static cold storage (which is standard of care). During Hypothermic Machine…
Condition: Transplant / Liver Transplant
Investigator: Elizabeth Verna, MD
Status: Closed
The purpose of this study is to see if the study drug Harvoni given for 4 weeks immediately after liver transplantation is safe and able to clear the Hepatitis C virus (HCV) from the body. This study will test a drug named Harvoni for the treatment of chronic genotype 1 or 4 Hepatitis C Virus (HCV) in peri-operative liver transplant patients. Harvoni (LDV/…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Simon Lichtiger, MD
Status: Closed
This study is for patients that have been diagnosed with Crohn's Disease, which is an inflammatory disease of the gastrointestinal tract (stomach and intestines). The purpose of this study is to see if study drug GS-5745 is effective in treating people with Crohn's Disease.
Condition: Gastrointestinal and Digestive Diseases
Investigator: Simon Lichtiger, MD
Status: Closed
This study is being done to see how safe and effective this investigational drug is and how well it is tolerated in subjects with ulcerative colitis. This study will study the safety of LY3074828 and any side effects one might have when they take it and how much LY3074828 should be given to subjects.
Condition: Transplant / Liver Transplant
Investigator: Tomoaki Kato, MD
Status: Closed
The purpose of this study is to investigate a new therapeutic regimen with or without steroids in the pediatric population. The aim is to find out whether everolimus is safe and has beneficial effects in children who receive a liver transplant. All children will receive a study drug called everolimus twice a day plus a reduced dose of cyclosporine or…
A study for kidney transplant subjects using study drug eculizumab to prevent delayed graft function
Condition: Transplant / Liver Transplant
Investigator: Lloyd Ratner, MD, MPH, FACS
Status: Closed
The purpose of this study is to determine if eculizumab is safe and could be used to prevent Delayed Graft Function (DGF) following kidney transplantation. DGF is an early complication of kidney transplantation. This condition occurs when the transplanted kidney does not recover instantly after transplantation and can take days to weeks before recovering…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Simon Lichtiger, MD
Status: Closed
The purpose of the study is to determine if the experimental use of an antibiotic called rifaximin for upto one year can improve the symptoms of Crohns disease (like abdominalpain and liquid/very soft stools), and if rifaximin can improve the inflammation in the intestines causedby Crohns disease. The study is trying to determine if rifaximin, unlike other…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Julie Khlevner, MD
Status: Closed
We are currently recruiting pediatric patients ages 7-17 who suffer from Irritable Bowel Syndrome with Constipation (IBS-C) for our Linaclotide clinical trial. Study will involve 6 visits and will last anywhere from 10-12 weeks after the patient qualifies.
Condition: Gastrointestinal and Digestive Diseases
Investigator: Marc Bessler, MD
Status: Closed
This study is for patients with Gastroesophageal Reflux Disease or GERD which may cause reflux or heartburn. Symptoms are often caused by a weak valve, or sphincter, between the esophagus (the swallowing tube that leads from your mouth to your stomach) and the stomach. This structure is called the lower esophageal sphincter (LES). Normally, when liquid and…
Study for liver transplant recipients using drug (IgG) to prevent Hepatitis C virus (HCV) recurrence
Condition: Transplant / Liver Transplant
Investigator: Elizabeth Verna, MD
Status: Closed
The purpose of this study is to test the safety of different doses of HCIG when given to patients with HCV who receive a liver transplant. It will also provide information about whether HCIG can prevent HCV infection. Participation in the study is expected to last about 10 months. Participants will be randomly assigned to either receive HCIG or not. Your…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Francis Gress, MD
Status: Closed
The purpose of this Registry is to develop a database to store information from subjects who haveundergone an examination of the esophagus with the NvisionVLE Imaging System. This is done bythe collection and analysis of the medical record information, imaging data, and physicianquestionnaires. The information is then stored in a database and may be used at…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Melanie Gold, MD
Status: Closed
Auriculotherapy is a type of Eastern medicine that has been used for thousands of years involving the ear. The ear has nerve connections to the whole body, and therefore using non-invasive techniques can be used to treat a wide variety of problems. This study is looking to see if auriculotherapy might be used to treat abdominal pain and find areas on the…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Peter Green, MD
Status: Closed
This research study is testing an investigational medication called AMG 714 for people with refractory celiac disease Type II. If youre at least 18 years of age, diagnosed with celiac disease, and you are still experiencing persistent or recurrent intestinal atrophy and gastrointestinal symptoms despite following a strict gluten-free diet for at least 6 12…
Condition: Transplant / Liver Transplant
Investigator: Robert Brown, MD, MPH
Status: Closed
The purpose of this study is to see if study drugs ABT-450/r/ABT-267, and ABT-333 taken with RBV are safe and able to reduce the amount of Hepatitis C Virus (HCV) in subjects' blood over a 24-week treatment period. These drugs are intended to prevent the HCV from multiplying in the human body. Subjects who participate in this study will be expected to…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Simon Lichtiger, MD
Status: Closed
The purpose of this study is to find out if a new investigational drug, called tofacitinib (also known as tofacitinib citrate or CP-690,550), can help people with Ulcer Colitis (UC). The purpose of this research study is to compare the effects of tofacitinib to a placebo in patients with Ulcer Colitis (UC). A placebo looks like the study drug but does not…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Joseph Picoraro, MD
Status: Closed
New medical therapy for pediatric Crohn's disease (CD) or pediatric ulcerative colitis (UC). We are currently recruiting pediatric participants (aged 2 to 17 years) who have received a diagnosis of UC or CD but who do not tolerate or respond to standard treatments, including corticosteroids, immunomodulators and TNF-alpha antagonists. The hubble study…
Condition: Gastrointestinal and Digestive Diseases
Investigator: Garrett Lawlor, MD
Status: Closed
The main purpose of this study is to see if ustekinumab is useful for treating patients with moderately to severely active ulcerative colitis. The safety of ustekinumab will also be studied.