Effects of HIV and Hepatitis C Virus on the Brain

HIV/HCV: Neuropsychiatric and Neurophysiological Features

This study will determine the effects that HIV and hepatitis C virus have on thinking abilities and whether the viruses affect brain chemistry.

Study Overview

Status

Completed

Detailed Description

Hepatitis C is a liver disease that is caused by the hepatitis C virus (HCV). It can be successfully treated with 6 to 12 months of medication in both HIV infected and HIV uninfected people. Among HIV infected people, HCV infection is a common co-morbidity, and is more serious when it occurs in this population than others because it leads to liver damage more quickly. HIV is known to cause neurological deficits, and studies suggest that HCV may do so, as well. Knowledge about how to treat these deficits, however, is limited. More information about the nature of the neurological problems and their causes is needed to develop effective treatments. This study will determine the effects that HIV and HCV have on thinking abilities, such as memory, attention, and problem-solving, and whether the viruses affect brain chemistry.

Participants in this 4-year, observational study will undergo a series of tests and interviews. Participants may choose to complete all procedures over 2 days or three appointments. Procedures will include a 20-minute medical interview, a 4-hour neuropsychological evaluation, a 5-minute functional ability questionnaire, blood and urine collection (approximately 15 minutes), and a 1-hour magnetic resonance imaging (MRI) test of the head. The neuropsychological evaluation will test participants' memory, concentration, reasoning, and speed of thinking. All procedures will be completed over approximately 6 hours.

Study Type

Observational

Enrollment (Actual)

78

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • New York
      • New York, New York, United States, 10029-6574
        • Mount Sinai School of Medicine

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

HIV / HCV Coinfected, HIV moninfected, & HCV monoinfected

Description

Inclusion Criteria:

  • CD4 count is greater than 200
  • Hepatitis C infected or uninfected
  • Speaks English

Exclusion Criteria:

  • Currently receiving interferon treatment for hepatitis C
  • History of neurological illness
  • Any psychotic spectrum disorder (e.g., schizophrenia or manic depression/bipolar disorder)
  • History of learning disability
  • History of head injury that entailed a loss of consciousness for more than 30 minutes
  • Any metal in body

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
HIV/HCV
HIV and HCV coinfected
HIV infected
HIV monoinfected
HIV/HCV nonviremnic
HIV and HCV coinfected with HCV RNA less than 600 copies
HCV infected
HCV monoinfected with HCV viremia

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Elizabeth Ryan, PhD, Icahn School of Medicine at Mount Sinai

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

May 1, 2006

Primary Completion (Actual)

July 1, 2009

Study Completion (Actual)

July 1, 2009

Study Registration Dates

First Submitted

June 28, 2007

First Submitted That Met QC Criteria

June 28, 2007

First Posted (Estimate)

July 2, 2007

Study Record Updates

Last Update Posted (Estimate)

May 25, 2015

Last Update Submitted That Met QC Criteria

May 21, 2015

Last Verified

May 1, 2015

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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