235 Studies Now Enrolling
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Displaying 1 - 9 of 9
Condition: Addiction / Nicotine
Investigator: Jonathan Overdevest, MD, PhD
Status: Currently Recruiting
The Columbia Otolaryngology Department is interested in understanding the intersection of vaping, smell, and taste and their impact on individuals' preferences for certain flavors. Participation will involve answering a series of questionnaires in addition to completing a formal evaluation of your smell and taste with standardized measurements. You can…
Condition: Addiction / Nicotine
Investigator: Ana Navas-Acien, MD, PHD, MPH
Status: Closed
The use of electronic cigarettes, also known as e-cigs or vaping, has increased among former smokers and young adults who have never smoked. Relatively little is known, however, about their health effects (whether they are adverse, have no effect, or are beneficial). The purpose of this research study is to evaluate (1) the association of e-cig use with…
Condition: Autoimmune Disorders / Rheumatoid Arthritis
Investigator: Jon Giles, MD
Status: Closed
We are inviting patients with active Rheumatoid Arthritis (RA) to help us better understand how treatment options affect inflammation in soft tissues. With a combination of blood work, a full-body FDG PET-CT scan, questionnaires, and a soft tissue biopsy (from an area around the belly button), we hope to see how RA interacts with these multiple areas of…
Condition: Addiction / Nicotine
Investigator: Mariam Aly, PhD
Status: Closed
This is a four-session study in which we will be recruiting existing cigarette smokers to explore the competitive dynamics between memory encoding and memory retrieval. To participate, you will first go through a phone screening to determine eligibility and learn about the study. Then you will be asked to visit our facility at the Morningside Campus of…
Condition: Autoimmune Disorders / Rheumatoid Arthritis
Investigator: Laura Geraldino-Pardilla, MD, MPH
Status: Closed
This study aims to understand how two commonly prescribed drugs impact myocardial inflammation in rheumatoid arthritis.
Condition: Psychiatric Disorders / ADD/ADHD
Investigator: Jonathan Posner, MD
Status: Closed
In this study, we are trying to learn more about how stimulant medication produces an improvement in emotional lability (frequent mood changes and excessive emotional reactions) in patients with Attention Deficit Hyperactivity Disorder (ADHD.) Although ADHD is primarily associated with inattention, hyperactivity, and impulsivity, emotional ability plays a…
Condition: Autoimmune Disorders / Rheumatoid Arthritis
Investigator: Joan Bathon, MD
Status: Closed
The study aims to compare the effect two different RA treatments on cardiovascular health in patients who are considering a treatment change. The study is recruiting patients who are only taking methotrexate and are switching treatment due to a lack of improvement. The trial will randomize participants to take a TNF inhibitor (Enbrel or Humira) in addition…
Condition: Psychiatric Disorders / ADD/ADHD
Investigator: Jonathan Posner, MD
Status: Closed
Children with Attention-Deficit/Hyperactivity Disorder (ADHD) are typically treated with two types of medications: stimulants and non-stimulants. These medications work in different ways to treat ADHD symptoms, but we do not fully understand the brain mechanisms underlying the medications' effects. This study will use MRI scanning to look at changes in…
Condition: Autoimmune Disorders / Rheumatoid Arthritis
Investigator: Joan Bathon, MD
Status: Closed
We are doing a research study to learn more about why people with rheumatoid arthritis (RA) are prone to heart disease. We are recruiting patients diagnosed with Rheumatoid Arthritis without a personal history of heart disease. This study involves one initial full visit as described below, and a brief follow up visit that will take place approximately 2 or…