366 Studies Now Enrolling
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Displaying 1 - 19 of 19
Condition: Obesity
Investigator: Ilene Fennoy, MD
Status: Currently Recruiting
This study is being done to learn more about how weight-loss surgery or a medicine called glucagon-like peptide-1 receptor agonist (GLP-1RA) affects the bacteria in your mouth and stool. We are also trying to understand how these changes might be connected to your liver health and cholesterol levels. This information could help doctors take better care of…
Condition: Obesity
Investigator: Kathryn Whyte, PhD, RDN
Status: Currently Recruiting
The purpose of this study is to assess energy balance during two different diet periods.
Condition: COVID-19 (Coronavirus)
Investigator: Magdalena Sobieszczyk, MD
Status: Currently Recruiting
We want to assess the baseline and cumulative seroprevalence of SARS-CoV-2 using serological and molecular assays. We will also administer a survey. Findings from this study will inform; 1) our understanding of changing epidemiology of COVID-19; 2) use of serological assays and testing algorithms, and 3) approaches to managing psychosocial stress in the…
Condition: COVID-19 (Coronavirus)
Investigator: Michael Yin, MD
Status: Currently Recruiting
A study looking at improving gut health and cognitive symptoms in Long COVID patients. A 4-week study taking a prebiotic (fiber) with a probiotic bacteria (Synbiotic). The study involves 2 in-person study visits which involves online surveys, cognitive testing, blood samples, stool samples, and rectal swab samples. Each completed study visit pays you $80 in…
Condition: COVID-19 (Coronavirus)
Investigator: Lawrence Purpura, MD, MPH, TM
Status: Currently Recruiting
Certain investigational drugs (IVIG and Ivabradine) can help treat the system that controls automatic body functions such as heartbeat, blood pressure, and digestion associated with Long COVID. Long COVID is defined as symptoms associated with COVID that have lasted for at least 3 months and occur or worsen at least 1 month after infection. The study will…
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: 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: 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: COVID-19 (Coronavirus)
Investigator: Melissa Stockwell, MD, MPH
Status: Currently Recruiting
We are doing this study to understand how COVID, the infection caused by a virus called SARS-CoV-2 affects the body, and why some people who got COVID are still sick many months after being infected. Help us to better understand the long-term effects of COVID. If you or your child has had COVID or is feeling the long-term effects of COVID, you might be able…
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: COVID-19 (Coronavirus)
Investigator: Deborah Theodore, MD
Status: Currently Recruiting
This is a study for people with symptoms of long COVID. We are looking for people over the age of 18 who are interested in participating in a study to understand whether a mindfulness meditation intervention can help improve symptoms of long COVID. Study participation lasts 6 months and is fully remote.
Condition: COVID-19 (Coronavirus)
Investigator: Michael Yin, MD
Status: Currently Recruiting
We are seeking volunteers who have been diagnosed with COVID-19 by a healthcare provider or by lab testing. We are also looking for volunteers who have never tested positive for COVID-19 and have not received a COVID-19 vaccine. The study, also known as C-PIC, will be looking at antibody levels and how long the virus remains in the body. We are also…
Condition: COVID-19 (Coronavirus)
Investigator: Andrew Einstein, MD
Status: Currently Recruiting
We are seeking patients that have had a pre-COVID heart CT scan (Coronary Computed Tomography Angiography) that was performed at Columbia University Irving Medical Center/NewYork-Presbyterian Hospital before March of 2020. For this study, half of patients will be required to have had COVID-19 symptoms (e.g., fever, cough, shortness of breath) and would have…
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, aged 18-70, who are overweight or obese with a body mass index of 27-50, and have been diagnosed with, or are at risk for, prediabetes.…
Condition: COVID-19 (Coronavirus)
Investigator: Elizabeth Oelsner, MD, MPH
Status: Currently Recruiting
This study is called the COVID-19 Lung Microvascular and Parenchymal Sequelae (LUNG MaPS) Study. The purpose of the study is to learn about the effects of COVID-19 infections on the lungs and heart, and to improve our understanding of why some COVID-19 patients experience ongoing symptoms, or what is often called "long COVID." Hundreds of…
Condition: COVID-19 (Coronavirus)
Investigator: Ari Shechter, PhD
Status: Currently Recruiting
The purpose of this study to examine the long-term general psychological symptoms, and identify the predictors of these psychological symptoms. The sustained psychological toll of working in a high-stress environment can have downstream impacts on health. It is therefore important to also consider how psychological factors influence physical health, for…
Condition: COVID-19 (Coronavirus)
Investigator: Jonathan Overdevest, MD, PhD
Status: Currently Recruiting
Our research team at Columbia University is trying to understand the impact of COVID-19 on smell and taste (chemosensory) dysfunction among adult patients from the Greater New York City area. Current areas of study include: 1) Investigation of smell and taste recovery patterns among patients with COVID-19; 2) Studies on how recovery of smell and taste after…
Condition: COVID-19 (Coronavirus)
Investigator: Magdalena Sobieszczyk, MD
Status: Currently Recruiting
We are looking for individuals over 18 years old who are interested in learning more about COVID-19 prevention research studies. We will ask you to complete a brief questionnaire to find out if you may be eligible for one of our studies. We can then schedule a phone call, teleconference, or in-person education visit so you can learn about the research we do…
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