233 Studies Now Enrolling
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Displaying 1 - 25 of 25
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: Heart Disease / High Blood Pressure
Investigator: Ajay Kirtane, MD, SM
Status: Currently Recruiting
We are doing this study to evaluate the real-world use of the Paradise Ultrasound Renal Denervation System indicated for patients who are unable to lower their blood pressure with lifestyle changes and medication. This is an FDA approved device. Involvement in the study is expected to last approximately 60 months. Patients will be asked to collect blood…
Condition: Infectious Disease / Lyme Disease
Investigator: Brian Fallon, MD
Status: Currently Recruiting
Are you suffering from persistent symptoms that began after you were diagnosed and treated with antibiotics for Lyme Disease? This new research study aims to test a new form of treatment for people with persistent symptoms despite antibiotic treatment for Lyme disease. This treatment involves stimulating a nerve on the surface of your ear. This is called…
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: Heart Disease / High Blood Pressure
Investigator: Jacquelyn Taylor, PhD, MSN, BSN
Status: Currently Recruiting
Race-Based Stress Reduction and Resilience Program for African-American Women. Join this important research study to examine the effectiveness of an eight-week stress reduction program for older African-American women. To learn more contact 347-978-2871 or son_RiSEstudy@cumc.columbia.edu. Study Requirements: African-American female between 50-75 years old,…
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: Heart Disease / High Blood Pressure
Investigator: Daichi Shimbo, MD
Status: Currently Recruiting
The measurement of blood pressure used to determine if a person has high blood pressure (also known as hypertension) and whether their blood pressure is controlled while taking medications that lower blood pressure. For many people, blood pressure levels are different when measured in a provider's office versus during normal daily activities outside of…
Condition: Infectious Disease / Lyme Disease
Investigator: Brian Fallon, MD
Status: Currently Recruiting
Have you been treated for Lyme Disease but continue to have brain fog or other cognitive problems? This research study will assess a non-medication non-invasive intervention to improve cognitive functioning in people with persistent cognitive problems despite prior antibiotic treatment for Lyme Disease. Participants will complete this 4 week intervention at…
Condition: Infectious Disease / Lyme Disease
Investigator: Brian Fallon, MD
Status: Currently Recruiting
This patient case registry for Lyme and other Tick-borne Diseases is a component of the Clinical Trials Network that was launched in 2021 by a grant from the Steven and Alexandra Cohen Foundation. The registry will gather general information such as demographics, medical history, and current functional status. This information will help researchers to…
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: 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: Heart Disease / High Blood Pressure
Investigator: Steven Shea, MD
Status: Closed
We are working with researchers at Columbia University to test whether text messaging can be used effectively to help people with hypertension to control their blood pressure. If you are between the ages of 18 and 85 years and have a cell phone, you may be eligible to participate in this study. The study would involve a telephone call that would last about…
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: Heart Disease / High Blood Pressure
Investigator: Daichi Shimbo, MD
Status: Closed
We are conducting a research study in adults to test whether blood pressure (BP) measured in a clinic setting without a technician present is comparable to blood pressure levels while awake outside of the clinic on an Ambulatory Blood Pressure Monitoring (ABPM) device. We will also test whether asleep blood pressure can be accurately determined using a home…
Condition: Heart Disease / High Blood Pressure
Investigator: Nour Makarem, PhD
Status: Closed
We are currently looking for men and non-pregnant women aged 40 years and above to participate in an at-home study on sleep and activity patterns in relation to blood pressure and blood glucose. Participants should not have critical/severe illness and should not be on dialysis or have a pacemaker or other implanted medical device. You must be willing to…
Condition: Heart Disease / High Blood Pressure
Investigator: Ajay Kirtane, MD, SM
Status: Closed
RADIANCE II is a randomized, double-blind, sham-controlled, single cohort study designed todemonstrate the effectiveness (how well it works) and safety of the Paradise Renal Denervation System in hypertensive subjects (subjects with high blood pressure).
Condition: Infectious Disease / Lyme Disease
Investigator: Brian Fallon, MD
Status: Closed
Are you suffering from chronic fatigue that began after you were diagnosed and treated with antibiotics for Lyme Disease? This new treatment research study investigates whether disulfiram, commonly known as "Antabuse", has the potential to be used as a treatment option for patients experiencing chronic post-treatment Lyme symptoms. This well-known…
Condition: Infectious Disease / Lyme Disease
Investigator: Brian Fallon, MD
Status: Closed
The CDC estimates that 10-20% of patients with Lyme disease will go on to have chronic symptoms despite having had appropriate treatment, a condition known as Post-Treatment Lyme Disease Syndrome (PTLDS). While there is currently no known cure, various therapies are being investigated. One promising approach is the practice of meditation and yoga which have…
Condition: Heart Disease / High Blood Pressure
Investigator: Ajay Kirtane, MD, SM
Status: Closed
The study has been designed to demonstrate the efficacy and safety of the Paradise Renal Denervation System when treating patients with high blood pressure known as hypertension. When blood pressure is persistently elevated and pushes against the walls of the artery over a long period of time it is known to cause Hypertension. The Paradise Renal Denervation…
Condition: Heart Disease / High Blood Pressure
Investigator: Ajay Kirtane, MD, SM
Status: Closed
The purpose of this project is to collect more data about the safety and effectiveness of renal denervation (disabling of kidney nerves) for the treatment of uncontrolled hypertension. For therenal denervation procedure, the Vessix Renal Denervation System is used. The system consists of a catheter (a thin tube) and a radio frequency (RF) generator (power…
Condition: Heart Disease / High Blood Pressure
Investigator: Usha Krishnan, MD
Status: Closed
The purpose of this study is to find out more about how physical activity monitors can help assess patients with pulmonary hypertension. We hope to find a relationship between the data on physical activity monitors and the tests that routinely done in patients with pulmonary hypertension.