Skip to main content
Click Here For COVID-19 Studies
Home
Clinical Trials Office Register as a Researcher Log In
345 Studies Now Enrolling
 Menu
Home How It Works Resources Join RecruitMe

Search

Reset

Status

  • Closed (6)

Medical Condition

  • Show all (309)
  • Addiction (2)
  • Autoimmune Disorders (1)
  • Blood Disorders (1)
  • Cancer (41)
  • COVID-19 (Coronavirus) (1)
  • Developmental Disorders (2)
  • Ear, Nose and Throat (3)
  • (-) Endocrine & Metabolic Disease (1)
    • Growth Hormone Deficiency (1)
  • Eye (1)
  • Healthy Volunteers (35)
  • Heart Disease (1)
  • Infectious Disease (1)
  • Neurological Disorders (174)
  • Obstetrics & Gynecology (2)
  • Pediatrics (10)
  • Psychiatric Disorders (29)
    • ADD/ADHD (1)
    • Anxiety (2)
    • Bipolar Disorder (5)
    • Borderline Personality Disorder (1)
    • Depression (8)
    • (-) Obsessive Compulsive Disorder (OCD) (5)
    • Schizophrenia (4)
  • Stroke (1)
  • Transplant (2)
  • Vascular Conditions (1)
Displaying 1 - 6 of 6

Learning and the Brain in Obsessive-Compulsive Disorder (OCD)

Condition: Psychiatric Disorders / Obsessive Compulsive Disorder (OCD)
Investigator: Amy Rapp, PhD
Status: Closed
The goal of the project is to identify differences in learning in obsessive-compulsive disorder (OCD) by measuring the activity of the brain while participants complete computer tasks. Eligible participants will be asked questions about their medical and psychiatric history and perform tasks on a computer while an…
Read More

A Brain Imaging Study of Cannabinoid Medication for Adults with OCD

Condition: Psychiatric Disorders / Obsessive Compulsive Disorder (OCD)
Investigator: Reilly Kayser, MD
Status: Closed
The Center for OCD Research at Columbia University Irving Medical Center is seeking individuals with obsessive-compulsive disorder (OCD) to participate in a research study, at no cost to you. This study is investigating the medicinal effects of nabilone for OCD symptoms. Nabilone is a synthetic form of tetrahydrocannabinol (THC), which is one of the active…
Read More

Control and Reward Circuits in OCD

Condition: Psychiatric Disorders / Obsessive Compulsive Disorder (OCD)
Investigator: Helen Simpson, MD, PhD
Status: Closed
This study is investigating how the brains of people with OCD may change with treatment. The study uses Magnetic Resonance Imaging (MRI) to scan the brain, and the treatment used is a form of Cognitive-Behavioral therapy consisting of Exposure and Ritual Prevention (EX/RP). Participants will…
Read More

Non-Invasive Stimulation for Obsessive Compulsive Disorder (OCD)

Condition: Psychiatric Disorders / Obsessive Compulsive Disorder (OCD)
Investigator: Yagna Pathak, PhD
Status: Closed
The study aims to assess the impact of repetitive transcranial magnetic stimulation (rTMS) on brain imaging and neurophysiological measures in patients with Obsessive-Compulsive Disorder (OCD).
Read More

A study for adults with growth hormone deficiency using study drug NNC0195-0092

Condition: Endocrine & Metabolic Disease / Growth Hormone Deficiency
Investigator: Pamela Freda, MD
Status: Closed
The purpose of this study is to investigate how well weekly injections of the growth hormone drug NNC0195-0092 works in adults with growth hormone deficiency. Growth hormone deficiency is a disorder that involves the pituitary gland (a small gland located at the base of the brain). The gland produces growth hormone and other…
Read More

Effects of Marijuana on Symptoms of OCD

Condition: Psychiatric Disorders / Obsessive Compulsive Disorder (OCD)
Investigator: Helen Simpson, MD, PhD
Status: Closed
The purpose of this pilot research study is to test whether certain components of the marijuana plant, known as "cannabinoids", may help to reduce symptoms in patients with OCD. Specifically, patients enrolled in the study will smoke marijuana containing different concentrations of 2 different cannabinoids, THC and CBD. Both of these agents act on the…
Read More
This website uses cookies as well as similar tools and technologies to understand visitors’ experiences. By continuing to use this website, you consent to Columbia University’s usage of cookies and similar technologies, in accordance with the Columbia University Website Cookie Notice.
I AGREE
COMPLIANCE
Compliance Hotline Compliance Program
RESOURCES
Contact RecruitMe Terms of Use Privacy Policy ©2025 Columbia University
SCHOOLS
Vagelos College of Physicians and Surgeons Mailman School of Public Health School of Nursing College of Dental Medicine Graduate School of Arts and Science