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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02004444
Other study ID # 2010P-000249 RG 452 3-A-1
Secondary ID
Status Completed
Phase N/A
First received November 20, 2013
Last updated January 28, 2016
Start date October 2010
Est. completion date January 2016

Study information

Verified date January 2016
Source Beth Israel Deaconess Medical Center
Contact n/a
Is FDA regulated No
Health authority United States: Institutional Review Board
Study type Observational [Patient Registry]

Clinical Trial Summary

JC virus is a benign virus which infects approximately up to 90% of the normal adult population. However, it may be reactivated in people who have a decreased immune function as in HIV infection, cancer, chemotherapy, transplant recipients, or in MS patients treated with natalizumab (Tysabri). In these patients, JC virus can cause a severe brain disease called Progressive Multifocal Leukoencephalopathy (PML), for which there is no cure.

As of September 2013, 400 MS patients in the world, who have been treated with natalizumab, have developed PML. The risk of PML is approximately 5 patients in 1000 after 24 months on the drug. Researchers do not know exactly in which cells of the body the virus lives but it has been isolated from the blood, urine, cerebrospinal fluid (CSF), and from the brains of patients with immunosuppression.

In this study, the investigators wish to determine precisely where the virus lives, and how the body prevents it from causing brain disease.

Because of the association of PML with natalizumab, the investigators would like to see if there is a difference in the amounts of virus in blood, urine, and CSF found in MS patients treated with natalizumab or those treated with different medications for MS, or those not treated at all. The investigators hope that this knowledge will allow us to find better ways of preventing the development of PML as well as treatments for patients with PML.


Description:

Subjects selected for participation in this study have been diagnosed with Multiple Sclerosis (MS). Of the MS patients enrolled in the study, some have been treated with natalizumab or a different medication for MS, and others have not been treated at all. All MS patients enrolled have their blood tested for the presence of the JC virus. Those testing negative for the JC virus do not continue in the study. Those testing positive for the JC virus continue participating in the study, and provide a urine sample, blood sample, lumbar puncture, and a neurological exam. Approximately 65 people will take part in this study at Beth Israel Deaconess Medical Center.


Recruitment information / eligibility

Status Completed
Enrollment 50
Est. completion date January 2016
Est. primary completion date January 2016
Accepts healthy volunteers No
Gender Both
Age group 18 Years and older
Eligibility Inclusion Criteria:

- Clinical diagnosis of Multiple Sclerosis, relapsing remitting

Exclusion Criteria:

- JCV sero-negative

Study Design

Observational Model: Case Control, Time Perspective: Cross-Sectional


Related Conditions & MeSH terms


Locations

Country Name City State
United States Beth Israel Deaconess Medical Center Boston Massachusetts

Sponsors (3)

Lead Sponsor Collaborator
Beth Israel Deaconess Medical Center Biogen, National Multiple Sclerosis Society

Country where clinical trial is conducted

United States, 

References & Publications (1)

Chalkias S, Dang X, Bord E, Stein MC, Kinkel RP, Sloane JA, Donnelly M, Ionete C, Houtchens MK, Buckle GJ, Batson S, Koralnik IJ. JC virus reactivation during prolonged natalizumab monotherapy for multiple sclerosis. Ann Neurol. 2014 Jun;75(6):925-34. doi — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Molecular determinants of JCV reactivation in blood, urine, and CSF Characterize the phenotype of the cells carrying JCV in the blood of MS patients after 18, 24 and 36 months on continuous natalizumab therapy and in interferon-beta treated and untreated MS subjects, and analyze the molecular determinants of JCV reactivation in their blood, urine and CSF. 1 day No
Secondary Humoral and Cellular Immune Response to JCV Evaluate the humoral and cellular immune response against JCV in MS patients after 18, 24 and 36 months on continuous natalizumab therapy and in interferon-beta treated and untreated MS subjects, and correlate these findings with JCV reactivation in different compartments. 1 day No
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