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  • Show all (40)
  • (-) Currently Recruiting (21)
  • Closed (19)

Medical Condition

  • Cancer (1)
  • Diabetes (3)
  • Endocrine & Metabolic Disease (2)
  • Healthy Volunteers (5)
  • Liver Disease (1)
  • Obesity (7)
  • Pediatrics (2)
Displaying 1 - 21 of 21

Biobank of Blood Samples from Overweight or Obese Patients

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…
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Temporary Insulin Resistance

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 volunteers…
Read More

Effect of lowering insulin levels on blood sugar

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.…
Read More

Biobank of Blood Samples from Overweight or Obese Patients

Condition: Healthy Volunteers
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…
Read More

Lowering Insulin Levels in Fatty Liver Disease

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.…
Read More

Study of Whole-Food Plant-Based Diet (WFPBD) to Control Weight in Overweight/Obese Men with Prostate Cancer

Condition: Cancer / Prostate Cancer
Investigator: Mark Stein, MD
Status: Currently Recruiting
The purpose of this study is to assess the efficacy of a home-delivered whole-food plant-based diet (WFPBD) intervention in promoting weight loss in overweight or obese men with prostate cancer receiving androgen deprivation therapy (ADT), as compared to general nutritional counseling only. Another purpose is to assess how easy or difficult it is for…
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Genetics of Early Childhood Obesity (GECO) Study at Columbia

Condition: Pediatrics
Investigator: Vidhu Thaker, MD
Status: Currently Recruiting
We will enroll children with severe early onset obesity (BMI 99th percentile) diagnosed prior to 6years of age or other endocrine disorders. We will ask questions about their health, eating behavior and perform a brief physical examination. We will collect saliva or blood to perform genetic testing. We will also invite family…
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Ultra-Processed Food Effect on Weight Change

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.
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Weight Loss Study: Genetic Variations and Response to Naltrexone/Bupropion

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…
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POWERS - Understanding Body Changes After Weight Loss

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.…
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Temporary Insulin Resistance

Condition: Healthy Volunteers
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 volunteers…
Read More

Temporary Insulin Resistance

Condition: Diabetes
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 volunteers…
Read More

Omics Prospective Tissue Collection

Condition: Liver Disease
Investigator: Julia Wattacheril, MD, MPH
Status: Currently Recruiting
The purpose of this study is to learn about the causes of non-alcoholic fatty liver disease (NAFLD). This is the most common type of liver disease, affecting millions of people in the United States alone. The incidence of Nonalcoholic Fatty Liver Disease (NAFLD) is very similar to that of obesity, type-2 diabetes, and the…
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Effect of lowering insulin levels on blood sugar

Condition: Healthy Volunteers
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.…
Read More

Effect of Lowering Insulin Levels on Blood Sugar

Condition: Diabetes
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.…
Read More

Effect of lowering insulin levels on blood sugar

Condition: Endocrine & Metabolic Disease
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.…
Read More

Lowering Insulin Levels in Fatty Liver Disease

Condition: Healthy Volunteers
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.…
Read More

Lowering Insulin Levels in Fatty Liver Disease

Condition: Diabetes
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.…
Read More

Lowering Insulin Levels in Fatty Liver Disease

Condition: Endocrine & Metabolic Disease
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.…
Read More

Program for Overweight Education and Reduction (POWER)

Condition: Pediatrics
Investigator: Ilene Fennoy, MD
Status: Currently Recruiting
We are doing this research study to find out what happens to children who are overweight and how the things we recommend as a part of routine clinical care affect your child. The purpose of this study is to understand what happens to children as a result of being overweight, to link these outcomes to specific clinical measures, and to determine how…
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Changes in Brain Biomarkers After Bariatric Surgery or Low-Calorie Diet (ages 18-65)

Condition: Healthy Volunteers
Investigator: Sharon Wardlaw, MD
Status: Currently Recruiting
The goal of this project is to understand why bariatric surgery is such an effective treatment for obesity with a focus on brain mechanisms. Cerebrospinal fluid neuropeptides, hormones, and protein levels will be measured in subjects before and after bariatric surgery as compared with subjects before and after diet-induced…
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