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Terminated No phase listed Observational

Genetic Evaluation of Natalizumab-Treated Patients With Progressive Multifocal Leukoencephalopathy

ClinicalTrials.gov ID: NCT01211639

Public ClinicalTrials.gov record NCT01211639. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Jul 22, 2026, 2:09 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Study identification

NCT ID
NCT01211639
Recruitment status
Terminated
Study type
Observational
Phase
Not listed
Lead sponsor
Biogen
Industry
Enrollment
24 participants

Conditions and interventions

Interventions

Not listed

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Sep 30, 2010
Primary completion
Jul 31, 2014
Completion
Jul 31, 2014
Last update posted
Jan 18, 2015

2010 – 2014

United States locations

U.S. sites
10
U.S. states
8
U.S. cities
10
Facility City State ZIP Site status
North Central Neurology Associates Cullman Alabama 35058
Rocky Mountain MS Center at Anschutz Medical Campus University Colorado Denver Aurora Colorado 80045
Rush Medical Center - Rush Multiple Sclerosis Center Chicago Illinois 60612
St. Vincent Hospital, St. Vincent Neuroscience Institute Indianapolis Indiana 46260
Central Neurology Hastings Nebraska 68901
Clinical Research Center UH, The Nebraska Medical Center Omaha Nebraska 68105
NYU Hospital for Joint Disease, MS Care Center New York New York 10003
University of Rochester Rochester New York 14642
Research Site Cincinnati Ohio 45208
Neurology of Bend, LLC Bend Oregon 97701

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 1 non-U.S. site.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01211639, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jan 18, 2015 · Synced Jul 22, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT01211639 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →