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Displaying 201 - 210 of 210

Brain Activity Assessment for Depressed Adolescents

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…
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Sitting Reduction Study

Condition: Healthy Volunteers
Investigator: Keith Diaz, PhD
Status: Closed
The phrase sitting is the new smoking has been coined due to an increase of excessive sitting in middle- and older-aged adults. However, there are currently no specific guidelines for the best way to break up long periods of sitting. This study will look at the effect of breaking up sitting periods with movement breaks on blood sugar levels. We are looking…
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Weight Loss Maintenance

Condition: Healthy Volunteers
Investigator: Loren Gianini, PhD
Status: Closed
The goal of this study is to better understand why some people have managed to lose weight and keep it off while others have not. We are recruiting people who have lost weight and kept it off as well as healthy non-dieters with overweight or obesity who are not trying to lose weight. Study participation involves computer tasks, brain imaging, and eating a…
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The BoneGN study - Healthy controls

Condition: Healthy Volunteers
Investigator: Thomas Nickolas, MD, MS
Status: Closed
The BoneGN study will help us learn how bones and muscles are responding to Glomerular Diseases. These conditions may gradually weaken bones and increase the risk of having a fracture (broken bone). In the future, the results can contribute in developing strategies to improve the bone health. We are looking for healthy children and adults between 5 and 55…
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PreventCovidU: A Study to Assess COVID Infection and Transmission after Moderna COVID-19 Vaccination Compared to Unvaccinated Individuals

Condition: Healthy Volunteers
Investigator: Sharon Mannheimer, MD
Status: Closed
This is a COVID transmission study happening across the US to help us learn whether the COVID-19 vaccine stops the spread of the SARS-CoV-2 virus (COVID): both initial infection and transmission to others. The answer to this question can have an important impact on all of our lives. Currently we are enrolling unvaccinated people. You will not be required to…
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A study to understand language abilities in adults as they age

Condition: Healthy Volunteers
Investigator: Marla Hamberger, PhD
Status: Closed
The purpose of this project is to develop a set of word finding or naming tests for adults, ages 66 and above. The main task involves naming pictures of common objects (e.g. broom), or naming items when given a description (e.g. "what children ride to school in"). There are some other tasks as well such as single word reading, number repetition,…
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HIV Vaccine Study Among 18-60 year-old Sexually Active Men or Transgender Individuals

Condition: Healthy Volunteers
Investigator: Magdalena Sobieszczyk, Md
Status: Closed
Almost 40,000 people get HIV in the U.S. each year and almost all occur via sexual contact, especially male-to-male contact. The number of new infections has decreased slightly each year, however, we need other HIV prevention tools, such as developing a greatly, effective HIV vaccine, to better reduce HIV infections. SCREENING AND EDUCATION: 1. Consent will…
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Bispecific Antibody Study: 18-60-year-old, Healthy & HIV-Negative Volunteers

Condition: Healthy Volunteers
Investigator: Magdalena Sobieszczyk, Md
Status: Closed
Antibodies are one of the natural ways that our bodies fight or prevent infection. Were testing an antibody to find out if its safe, if it doesn't make people feel uncomfortable and to find out what may be the best dose if its given by IV infusion or sub-cutaneous injection. You cannot get HIV from the Bispecific Antibody. We'll ask you to…
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Can switching medications to Vortioxetine (brand name Trintellix) assist patients with depression to pursue personal goals?

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…
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Audio + picture game! Earn money playing a computer game

Condition: Healthy Volunteers
Investigator: Daphna Shohamy, PhD
Status: Closed
The Learning Lab at Columbia University is conducting computer based behavioral studies to address fundamental questions regarding the nature of learning, memory, and decision making. Specifically, we will use behavioral methods to investigate the extent to which learning, memory and decision making may be modulated by factors such as novelty, trial-by-…
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