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Displaying 1 - 45 of 45
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: Neurological Disorders / Neuropathy
Investigator: Thomas Brannagan, MD
Status: Currently Recruiting
This is a global, multicenter, placebo-controlled, phase 3 study evaluating the efficacy and safety of riliprubart in adult participants with CIDP who are refractory or had an insufficient response to standard of care (SOC) therapies, defined as Ig administered IV (IVIg) or SC (SCIg), or corticosteroids. Treatment duration will be 48 weeks. Participant must…
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: Psychiatric Disorders / Depression
Investigator: Sarah Herzog, PhD
Status: Currently Recruiting
We are conducting a study on depression and suicide risk, and participants can earn up to $300 for taking part. Suicide rates in the U.S. are rising, and new treatments are urgently needed. This study focuses on the brain chemical glutamate, which may play an important role in mood and mental health. We will compare glutamate levels at rest and during…
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: Psychiatric Disorders / Depression
Investigator: Randy Auerbach, PhD
Status: Currently Recruiting
We are recruiting depressed adolescents ages 13-18 years. As a participant in our study, we will: (1) interview your child about current and past thoughts, feelings, and behaviors, (2) teach your child mindfulness strategies, (3) collect brain activity data with MRI (non-invasive) while your child practices mindfulness, and (4) send short surveys to your…
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: Psychiatric Disorders / Depression
Investigator: Marcella Walker, MD
Status: Currently Recruiting
Depression and some antidepressants may be associated with an increased risk of breaking a bone. It is not clear why this could be the case. It is possible that depression and/or certain medications used for the treatment of depression cause bone loss, increase the risk of falls, are associated with lower physical activity, or effects on muscle function.…
Condition: Psychiatric Disorders / Depression
Investigator: Joshua Berman, MD, PhD
Status: Closed
Are you suffering from chronic depression? We are seeking participants for a depression treatment research study at Columbia University using Transcranial Magnetic Stimulation (TMS). This study develops a more accurate TMS to treat chronic depression. Participation includes clinical assessments and magnetic resonance imaging (MRI). You will receive 27…
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: Psychiatric Disorders / Depression
Investigator: Randy Auerbach, PhD
Status: Closed
This study uses smartphone technology to better understand changes in adolescent moods over time. As a participant in our study, we would: (a) interview your child about current and past thoughts, feelings, and behaviors and (b) collect data from your child's smartphone for 6 months through an app called the Effortless Assessment of Risk States (EARS;…
Condition: Psychiatric Disorders / Depression
Investigator: Doron Amsalem, MD
Status: Closed
We are conducting research to explore self-stigma around depression, racial/ethnic and cultural experiences, and barriers to care (e.g., embarrassment, limited access, low expectations/motivation). Self-stigma refers to negative beliefs a person has about themself due to their mental illness. We are looking for Latinx or Black young adults ages 18-25 who…
Condition: Psychiatric Disorders / Depression
Investigator: Doron Amsalem, MD
Status: Closed
We are conducting research to explore the level of self-stigma around depression, racial/ethnic and cultural experiences, and barriers to care (e.g., embarrassment, limited access, low expectations/motivation). Self-stigma refers to negative beliefs a person has about themself due to their mental illness. We are looking for Latinx or Black young adults ages…
Condition: Psychiatric Disorders / Depression
Investigator: Doron Amsalem, MD
Status: Closed
We are conducting a research study to explore discrimination around depression and barriers to care in youth ages 14-18. We will use what we learn to create videos to reduce such discrimination. Parental permission is required for this study. Adolescents (ages 14-18) will participate in an individual interview that will be approximately 45 minutes long. We…
Condition: Psychiatric Disorders / Depression
Investigator: Elizabeth Sublette, MD, PhD
Status: Closed
This research study uses non-invasive brain imaging called functional near-infrared spectroscopy (fNIRS). For fNIRS, a small infrared bulb shines light through the skull, and a special light detector is able to measure oxygen use in the brain. Our goal is to understand oxygen use by brain mitochondria cells in major depression and how this is affected by…
Condition: Psychiatric Disorders / Depression
Investigator: Jeffrey Miller, MD
Status: Closed
The goal of this study is to examine how effective and well-tolerated a possible new treatment for individuals who injure themselves frequently will be. All research procedures can be done from home no in-person visits are required. We are studying a minimal-risk form of electrical brain stimulation called transcranial direct current stimulation, or tDCS.…
Condition: Psychiatric Disorders / Depression
Investigator: David Hellerstein, MD
Status: Closed
We are currently enrolling individuals with Major Depressive Disorder (MDD) to participate in this research study. This is a one-year open-label study to evaluate the long-term safety and tolerability of an investigational drug called REL-1017 (esmethadone) when taken alone (monotherapy) or when taken with other antidepressants (adjunctive therapy). Study…
Condition: Psychiatric Disorders / Depression
Investigator: Jeffrey Miller, MD
Status: Closed
Do you suffer from depression? Have standard treatments not been helpful? Researchers at Columbia University Irving Medical Center are conducting a study of an experimental antidepressant called ketamine, which can provide rapid relief of depressive symptoms in some patients. The study involves an inpatient stay, during which participants undergo brain…
Condition: Psychiatric Disorders / Depression
Investigator: Michael Grunebaum, MD
Status: Closed
If you're experiencing an acute psychiatric emergency, please stop negotiating this website and call 911 or go to the nearest emergency room. This website is not designed to address an acute psychiatric emergency. Purpose: To find out whether intranasal ketamine, when added to standard antidepressant treatment, improves the outcome of treatment for…
Condition: Neurological Disorders / Neuropathy
Investigator: Thomas Brannagan, MD
Status: Closed
The purpose of this study is to collect information about how patients with FAP respond to the study drug ALN-TTR02 over 18 months. This includes studying any potential improvements in FAP and any side effects that participants may have from the study drug. In addition, the study will examine how the body handles (distributes, break down, eliminates) the…
Condition: Psychiatric Disorders / Depression
Investigator: Joan Prudic, MD
Status: Closed
We are performing functional MRI (fMRI) scans before starting and after completing an acute course of electroconvulsive therapy (ECT) treatment. These scans are being performed to identify brain changes that occur after an acute course of ECT for participants with treatment-resistant depression. We also intend to perform two follow-up fMRI scans at two-…
Condition: Neurological Disorders / Neuropathy
Investigator: Thomas Brannagan, MD
Status: Closed
You are being considered to participate in this research study because you have type I or II diabetes with current treatment control and, you are experiencing painful diabetic peripheral neuropathy (DPN) in both lower extremities legs.The specific events that result in painful diabetic peripheral neuropathy are not well understood, but high blood sugar,…
Condition: Psychiatric Disorders / Depression
Investigator: Patrick Brown, PhD
Status: Closed
We are studying the relationship between mitochondrial function and the experience of fatigue. Mitochondria are the powerhouses of the cell. Cells within different organs contain hundreds to thousands of mitochondria, which sustain life and fuel energy-dependent processes that we do every day including muscle contraction and cognitive activity. They act…
Condition: Psychiatric Disorders / Depression
Investigator: Randy Auerbach, PhD
Status: Closed
We are seeking adolescents ages 13-17 to participate in a study on anhedonia. Anhedonia is the reduced ability to feel pleasure or enjoy things, and is a key feature of depression and other mental illnesses. If you believe your child is experiencing anhedonia, they may be eligible to participate in this study. If your child participates in this study, we…
Condition: Neurological Disorders / Neuropathy
Investigator: Thomas Brannagan, MD
Status: Closed
The purpose of this study is to evaluate the efficacy and safety of study drug, fingolimod taken daily compared with a placebo (does not contain active medication) on delaying disability progression in patients with chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). The study will consist of 3 periods: a Screening Period (lasting for up to 45…
Condition: Psychiatric Disorders / Depression
Investigator: David Hellerstein, MD
Status: Closed
Patients who are either interested in discontinuing their current antidepressant or have discontinued an antidepressant in the past 6 weeks will be provided with an FDA approved medicine, Vortioxetine (brand name Trintellix). Treatment with Vortioxetine will start after the past antidepressant is discontinued. Vortioxetine dosage is adjustable throughout…
Condition: Neurological Disorders / Neuropathy
Investigator: Thomas Brannagan, MD
Status: Closed
Subjects with Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) will be enrolled in the study and Intravenous Immunoglobulin (IVIg) will be given to eligible subjects on the study. CIDP is a chronic inflammatory condition that causes the immune system to attack the nerves. IVIg is one common treatment for CIDP. IVIG is a blood product that is…
Condition: Psychiatric Disorders / Depression
Investigator: Patrick Brown, PhD
Status: Closed
The goal of this open-administration treatment study of escitalopram (or duloxetine) is to evaluate the effect of antidepressant medication on treating the syndrome of frailty in older adults with depressive symptoms. Patients with significant depressive symptoms and 1 or more symptoms of the frailty syndrome (exhaustion, decreased energy, weight loss,…
Condition: Psychiatric Disorders / Depression
Investigator: Yuval Neria, PhD
Status: Closed
Approximately half of the individuals with Post-traumatic Stress Disorder (PTSD) present with major depressive disorder (MDD). Compared to PTSD alone, patients with comorbid PTSD-MDD demonstrate greater distress and poorer treatment outcome. The goal of this pilot study is to collect preliminary data on the feasibility, safety, and initial efficacy of an…
Condition: Neurological Disorders / Neuropathy
Investigator: Thomas Brannagan, MD
Status: Closed
The purpose of this study is to evaluate the efficacy and safety of ISIS TTR Rx given for 65 weeks in patients with Familial Amyloid Polyneuropathy (FAP). The purpose of this study is to determine if ISIS 420915 can help people with mild or moderate FAP. To be in this study you must have FAP and be able to walk without help or walk with using only one cane.
Condition: Psychiatric Disorders / Depression
Investigator: Ian Kronish, MD
Status: Closed
This study will allow cancer survivors an opportunity to learn whether light therapy is helpful to them in addressing common concerns of cancer survivors such as fatigue, feeling low, and/or trouble sleeping by engaging in an N-of-1 or individualized trial.
Condition: Neurological Disorders / Neuropathy
Investigator: Thomas Brannagan, MD
Status: Closed
International GBS Outcome Study (IGOS) is a study of the Inflammatory Neuropathy Consortium (INC) and Peripheral Nerve Society (PNS) on disease course and outcome in Guillain-Barr syndrome (GBS). Guillian Barre syndrome is an autoimmune disorder affecting the peripheral nervous system, leading to paralysis and potential fatality if it progresses to involve…
Condition: Psychiatric Disorders / Depression
Investigator: Franklin Schneier, MD
Status: Closed
If you are depressed and have not received course of medication treatment for depression in the past, you may be eligible for a study involving brain imaging and research treatment at no cost to you. The research treatment is with a medication that is not FDA-approved for depression. The study uses two types of brain imaging, position emission tomography (…
Condition: Neurological Disorders / Neuropathy
Investigator: Thomas Brannagan, MD
Status: Closed
Charcot-Marie-Tooth type 1A (CMT1A) disease is a rare, slowly progressing and debilitating hereditary condition commonly causing weakness of muscles in the feet and lower parts of the legs. There is currently no approved drug to cure CMT1A disease, and the available treatments commonly target the pain and inflammation associated with the disease. In order…
Condition: Psychiatric Disorders / Depression
Investigator: David Hellerstein, MD
Status: Closed
This is a pre-marketing (Phase 2A) multi-site study of an investigational drug, ganaxolone, as a potential treatment for non-psychotic post-partum depression. Eligible subjects who agree by signing informed consent will spend four days on the 5-South Research Unit (5-S) of the New York State Psychiatric Institute. For 6 hours they will have an tube in a…
Condition: Neurological Disorders / Neuropathy
Investigator: Thomas Brannagan, MD
Status: Closed
We are doing this study to find out if the research drug known as Rozanolixizumab can have additional benefit for people who are already receiving IVIG( Intravenous Immune Globulin) treatment for CIDP, and to have further safety evaluation of the research drug as well. If you choose to be part of this research study, the following procedures will occur:…
Condition: Neurological Disorders / Neuropathy
Investigator: Thomas Brannagan, MD
Status: Closed
Peripheral Neuropathy is a result of nerve damage, which may cause weakness, numbness, tingling, and pain in your hands, feet, and other areas of your body. Over 20 million Americans are affected by peripheral neuropathy, most commonly caused by diabetes. In approximately 25-50% of all people with peripheral neuropathy, the cause is unknown. These cases…
Condition: Psychiatric Disorders / Depression
Investigator: Ellie McGlinchey, PhD
Status: Closed
We are conducting research to compare different ways of improving sleep and mood in teens. Treatment involves Behavioral Sleep Therapy and Interpersonal Psychotherapy for Adolescents targeting: depression trouble falling and staying asleep not feeling rested on waking feeling sleepy during the day. Study Procedures: ~ A free, thorough diagnostic evaluation…
Condition: Neurological Disorders / Neuropathy
Investigator: Thomas Brannagan, MD
Status: Closed
This study is looking at using topiramate as a potential therapy for patients with cryptogenic sensory peripheral neuropathy. Patients who are randomized into the study will return to the clinic for follow up every 16 weeks. The total length of the study is 96 weeks.
Condition: Neurological Disorders / Neuropathy
Investigator: Thomas Brannagan, MD
Status: Closed
The purpose of this study is to see how effective two doses of an investigational new drug called IgPro20 is when given subcutaneously (a shot given into the fat layer between the skin and the muscle) to treat CIDP in patients that still require IVIG and also to look at how safe the IgPro20 is for patients.