233 Studies Now Enrolling
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Displaying 1 - 27 of 27
Condition: Psychiatric Disorders / Schizophrenia
Investigator: Kiyohito Iigaya, PhD
Status: Currently Recruiting
Our lab is conducting brain imaging research studies investigating people's behavior. We are looking for people between the ages of 18 and 65 to be study participants. As a schizophrenia study participant, you will be asked to complete a set of self-report questionnaires probing personality traits. You will also complete a number of computer-based…
Condition: Psychiatric Disorders / Schizophrenia
Investigator: Guillermo Horga, MD, PhD
Status: Currently Recruiting
In this study, we are trying to learn more about the symptoms of psychosis, specifically to learn how alterations in the brain may produce certain experiences (including voice hearing or auditory hallucinations) that are common in people with psychosis or schizophrenia. The study involves clinical interviews, computer tests, and magnetic resonance imaging (…
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…
Condition: Liver Disease / Hepatitis
Investigator: Elizabeth Verna, MD
Status: Closed
The TARGET-HBV study engages an observational research design to conduct a comprehensive review of therapeutic outcomes for patients with chronic hepatitis B (HBV) who are currently taking tenofovir alafenamide (TAF) relative to those patients following other treatment regimens. The study will address important clinical questions regarding the management of…
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 electroencephalogram (EEG) is recorded.…
Condition: Psychiatric Disorders / Schizophrenia
Investigator: Gaurav Patel, MD, PhD
Status: Closed
Our lab is conducting a series of research studies that investigate how specific brain regions are related to functioning in work, school, and in other social situations. As a study participant, you will be asked to complete clinical and neuropsychological assessments, an eye-tracking task, and a non-invasive MRI scan. Study participants earn between $15-50…
Condition: Liver Disease / Hepatitis
Investigator: Elizabeth Verna, MD
Status: Closed
This study will compare two experimental drugs, named Sofosbuvir/Velpatasvir/GS-9857 Fixed-Dose Combination (SOF/VEL/GS-9857 FDC) and Sofosbuvir/Velpatasvir (SOF/VEL) FDC for the treatment ofchronic genotype 3 hepatitis C virus (HCV) infection in patients who have cirrhosis, or scarring of the liver. The purpose of this study is to determine the efficacy,…
Condition: Psychiatric Disorders / Schizophrenia
Investigator: Joshua Kantrowitz, Md
Status: Closed
The purpose of this study is to evaluate the efficacy, safety and tolerability of different doses and durations of TV-46000 given by subcutaneous (under the skin) injection as compared to placebo for use as a potential maintenance in adults with schizophrenia.
Condition: Liver Disease / Hepatitis
Investigator: Elizabeth Verna, MD
Status: Closed
The purpose of this study is to evaluate the effectiveness, safety, and tolerability of study drugs Sofosbuvir, Velpatasvir and GS-9857 in comparison to Sofosbuvir and Velpatasvir in patients infected with HCV. Information about any side effects that may occur will also be collected.
Condition: Psychiatric Disorders / Obsessive Compulsive Disorder (OCD)
Investigator: Reilly Kayser, MD
Status: Closed
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 how these substances affect…
Condition: Liver Disease / Hepatitis
Investigator: Elizabeth Verna, MD
Status: Closed
This study will compare the effectiveness of three different FDA approved medicines for Hepatitis C Genotype 1 patients: HARVONI , Viekira Pak and Zepatier and will observe subject experiences before, during, and after HCV treatment. Subjects will be asked to respond to several survey questionnaires and if they would allow their leftover blood collected for…
Condition: Psychiatric Disorders / Schizophrenia
Investigator: Guillermo Horga, MD, PhD
Status: Closed
In this study, we are trying to learn more about the symptoms of schizophrenia, specifically to learn how abnormalities in the brain may produce certain experiences that are common in patients with schizophrenia. The study involves clinical interviews, clinical chart review, computer tests, and magnetic resonance imaging (MRI) scans.
Condition: Liver Disease / Hepatitis
Investigator: Elizabeth Verna, MD
Status: Closed
The purpose of this study is to evaluate the efficacy, safety, and tolerability of SOF/VEL/GS- 9857 FDC in patients infected with Hepatitis C (HCV), and previously treated unsuccessfully. Information about any side effects that may occur will also be collected.
Condition: Psychiatric Disorders / Obsessive Compulsive Disorder (OCD)
Investigator: Helen Simpson, MD, PhD
Status: Closed
Eligible participants will be asked questions about their symptoms, complete questionnaires, and receive sessions of Cognitive-Behavioral therapy consisting of Exposure and Ritual Prevention (EX/RP) accompanied by the use of a mobile app. The purpose of this study is to assess whether the mobile app may be effective in improving symptoms of OCD.
Condition: Liver Disease / Hepatitis
Investigator: Elizabeth Verna, MD
Status: Closed
This research trial is being conducted to determine the safety and efficacy of HARVONI (an FDA-approved Hepatitis C Virus medication) in HCV (genotype 1, 4, 5, an 6) infected patients who also have advanced heart failure or chronic lung disease. HARVONI has not been tested in patients with HCV and heart failure or chronic lunch disease. Subjects will take…
Condition: Psychiatric Disorders / Obsessive Compulsive Disorder (OCD)
Investigator: Pablo Goldberg, M.D.
Status: Closed
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…
Condition: Liver Disease / Hepatitis
Investigator: Steven Lobritto, MD
Status: Closed
The purpose of this study is to learn more about the effects of the combination of telaprevir peginterferon alfa2b (Peg-IFN) and ribavirin (RBV) in children with chronic hepatitis C. Investigators will look at how these study drugs may affect childrens bodies and how children break down and eliminate telaprevir. Participants of this study will receive Peg-…
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…
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 undergo a scan, which lasts for approximately 2 hours and takes…
Condition: Liver Disease / Hepatitis
Investigator: Elizabeth Verna, MD
Status: Closed
The purpose of this study is to determine how safe and effective using three medications (pegylated-interferon, ribavirin and boceprevir) are in curing HCV in patients with end stage kidney disease on hemodialysis. Participants will be prescribed these three medications and will be followed closely through treatment, then for 6 months afterwards. During…
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).
Condition: Psychiatric Disorders / Obsessive Compulsive Disorder (OCD)
Investigator: Helen Simpson, MD, PhD
Status: Closed
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 behaviors such as excessive washing or checking. The study is…
Condition: Liver Disease / Hepatitis
Investigator: Robert Brown, MD, MPH
Status: Closed
The purpose of this study is to see if study drug Sofosbuvir/Ledipasvir fixed-dose combination + Ribavirin (SOF/LDV FDC + RBV) are effective in treating people infected with the hepatitis C virus with genotypes 1 and 4, who have advanced liver disease with permanent liver damage (cirrhosis) and may be showing signs of liver failure or who have undergone…
Condition: Psychiatric Disorders / Schizophrenia
Investigator: Jeffrey Lieberman, MD
Status: Closed
This study plans to learn more about an investigational new drug called lumateperone tosylate (ITI-007) and may help us find new types of treatment for schizophrenia and schizoaffective disorder.
Condition: Liver Disease / Hepatitis
Investigator: Elizabeth Verna, MD
Status: Closed
This study will compare two experimental drugs, named Sofosbuvir/Velpatasvir/GS-9857 Fixed-Dose Combination (SOF/VEL/GS-9857 FDC) and Sofosbuvir/Velpatasvir (SOF/VEL FDC) for 12 weeks for the treatment of chronic hepatitis C virus (HCV) infection in subjects who have previously been unsuccessfully treated for chronic HCV.. An experimental drug is one that…
Condition: Liver Disease / Hepatitis
Investigator: Jennifer Elliott, PhD
Status: Closed
NOTE: YOU MUST HAVE HIV AND HAVE EVER HAD HEPATITIS C TO BE ELIGIBLE FOR THIS STUDY!! ............... For individuals who have both HIV and Hepatitis C virus (HCV), heavy drinking poses serious risks to their health. We do not yet know which interventions are effective at helping individuals with HIV and HCV drink less. The goal of the study is to compare…
Condition: Psychiatric Disorders / Schizophrenia
Investigator: Joshua Kantrowitz, Md
Status: Closed
The purpose of this study is to determine whether the brain wave patterns are improved after administration of CVN058 compared to placebo in subjects with schizophrenia. The study uses electroencephalography (EEG) to measure naturally occurring brain waves as you listen to recorded sounds.