Genetics of Progressive Multifocal Leukoencephalopathy and Acquired Immunodeficiency Syndrome
- Conditions
- PMLAIDS
- Registration Number
- NCT00342602
- Lead Sponsor
- National Cancer Institute (NCI)
- Brief Summary
This study will identify genetic factors associated with the development of progressive multifocal leukoencephalopathy (PML) in patients with acquired immunodeficiency syndrome (AIDS). PML is a life-threatening infection of the brain that affects about 5 percent of untreated patients with AIDS. Its symptoms include mental deterioration, vision loss, speech disturbances, ataxia (inability to coordinate movements), paralysis, and coma. PML is caused by a polyomavirus called the JC virus.
It is estimated that up to 80 percent of the human population has been exposed to the JC virus, but the disease is very rare. The virus only becomes active in people who have compromised immune systems, such as those undergoing immune suppressive chemotherapy for cancer and those with damaged immune systems due to HIV.
Patients who have participated in the Multicenter AIDS Cohort Study may be eligible for this study, as well as healthy normal volunteers who will serve as controls. The study will review clinical information from patients and analyze genetic factors from both patients and control subjects to investigate genes associated with AIDS and JC virus infection.
- Detailed Description
The purpose of this study is to identify host genetic factors that contribute to the development of Progressive Multifocal Leukoencephalopathy (PML) associated with JC virus. JC virus is one of many opportunistic infections that arise in AIDS patients. JC virus is widely distributed in the general population, with estimates of population exposure ranging from 30-80%. JC virus remains latent in the host, and in profoundly immunosuppressed patients, JC virus can cause PML, a fatal disease associated with neurotropic JC virus that lytically infects oligodendrocytes. In untreated AIDS populations, the frequency of PML has been estimated at roughly 5%. This study will identify host genetic factors that may contribute to the development of PML in the AIDS population.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 450
Not provided
Not provided
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (6)
Northwestern University
🇺🇸Chicago, Illinois, United States
Johns Hopskins Hospital
🇺🇸Baltimore, Maryland, United States
University of Pittsburgh
🇺🇸Pittsburgh, Pennsylvania, United States
University of California, Los Angeles
🇺🇸Los Angeles, California, United States
John H. Stroger, Jr. Hospital of Cook County
🇺🇸Chicago, Illinois, United States
Howard Brown Health Center
🇺🇸Chicago, Illinois, United States