The purpose of this study is to assess the effects of a single infusion of ketamine for adolescents and young adults with obsessive-compulsive disorder (OCD). Ketamine is a FDA-approved anesthetic medication that can possibly cause a rapid decrease in OCD symptoms. To be eligible to participate, patients need to have already tried at least one SRI…
The Center for OCD and Related Disorders is currently conducting a study in treating Obsessive-compulsive Disorder (OCD), which is a severe illness characterized by distressing intrusive thoughts, images, or impulses about a variety of themes (e.g., fears of contamination or harm) and repetitive…
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 undergo a scan, which lasts for approximately 2 hours and takes…
The Center for OCD and Related Disorders at New York State Psychiatric Institute/Columbia University Medical Center is seeking individuals aged 18+ with obsessive-compulsive disorder (OCD) to participate in a survey regarding their experiences with marijuana/cannabis. We hope this study will lead to increased understanding of…
We will enroll children with severe early onset obesity (BMI greater than 99th percentile) diagnosed prior to 6 years 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…
The purpose of this study is to understand the life course of PIRD patients and their family members that have the same gene change but do not have the same symptoms. PIRD is mostly due to inherited changes in the genes that normally have immune cells fight infections and regulate the immune system. There are many types of problems that patients with PIRD…
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 brain…
The purpose of this research is to determine whether a new investigational drug called TAK-935 is safe and whether it may help treat epilepsy in children with 15q duplication syndrome or CDKL5 deficiency disorder.
Epstein-Barr Virus (EBV) is the virus that causes mononucleosis, also known as mono. Almost all adults have had EBV. For most people, EBV never causes a health problem. However, when their immune system is not working properly (people who have had a transplant and those who have immune disorders), EBV can cause certain…
The purpose of this study is to investigate the safety and effectiveness of eltrombopag (investigational drug) in treating children and adolescents with newly-diagnosed immune thrombocytopenia (ITP), which is a rare blood disorder.