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ClinicalTrials.gov public records Last synced Oct 17, 2026, 2:39 AM EDT

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Showing 1–24 of 82 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: natalizumab Clear all
Completed No phase listed Observational

Observational Study of Tysabri in Early Relapsing-Remitting Multiple Sclerosis in Anti-JC Virus Antibody Negative Participants

NCT01485003
View directory record Official record
Conditions
Relapsing-Remitting Multiple Sclerosis
Interventions
natalizumab
Biological
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 65 Years
Enrollment
231 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
44
States / cities
Homewood, Alabama • Sun City, Arizona • La Jolla, California + 39 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2019 · Synced Oct 17, 2026, 2:39 AM EDT
Not listed No phase listed Observational

Analysis of MS Patients Who Have Had Greater Than 60 Infusions of Natalizumab

NCT04964700
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Natalizumab
Drug
Lead sponsor
Multiple Sclerosis Center of Northeastern New York
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Latham, New York
Source: ClinicalTrials.gov public record
Updated Mar 24, 2022 · Synced Oct 17, 2026, 2:39 AM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy of Intravenous Natalizumab in Acute Ischemic Stroke

NCT02730455
View directory record Official record
Conditions
Acute Ischemic Stroke
Interventions
natalizumab, Placebo
Drug
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 80 Years
Enrollment
277 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
18
States / cities
Los Angeles, California • Sacramento, California • San Diego, California + 13 more
Source: ClinicalTrials.gov public record
Updated Jan 8, 2019 · Synced Oct 17, 2026, 2:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Anal Dysplasia in Patients With Inflammatory Bowel Disease and Healthy Controls

NCT01860963
View directory record Official record
Conditions
Anal Squamous Intraepithelial Lesion (ASIL), HPV DNA
Interventions
Anal Pap smear and HPV DNA testing
Procedure
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 85 Years
Enrollment
310 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Oct 1, 2013 · Synced Oct 17, 2026, 2:39 AM EDT
Completed No phase listed Observational

TYSABRI Global Observational Program in Safety

NCT00477113
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Not listed
Lead sponsor
Biogen
Industry
Eligibility
Not listed
Enrollment
2,207 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2015
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 22, 2015 · Synced Oct 17, 2026, 2:39 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effect of Tysabri in Patients With Relapsing-Remitting Multiple Sclerosis: A Follow-up Magnetization Transfer Imaging (MTI) Study

NCT00937677
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Tysabri
Drug
Lead sponsor
University at Buffalo
Other
Eligibility
18 Years to 65 Years
Enrollment
85 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Sep 7, 2011 · Synced Oct 17, 2026, 2:39 AM EDT
Completed No phase listed Observational

Pharmacokinetic, Immunological and Biochemical Sample Collection and Analysis of a Tysabri Patient Cohort

NCT01070719
View directory record Official record
Conditions
Multiple Sclerosis, Relapse
Interventions
Not listed
Lead sponsor
John F. Foley, MD
Other
Eligibility
18 Years to 75 Years
Enrollment
270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 1, 2012 · Synced Oct 17, 2026, 2:39 AM EDT
Withdrawn Phase 2 Interventional

Alternative Treatment Paradigm for Natalizumab Trial

NCT01710228
View directory record Official record
Conditions
Multiple Sclerosis (MS)
Interventions
methylprednisolone
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 60 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Dec 29, 2016 · Synced Oct 17, 2026, 2:39 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Does Long-Term Natalizumab (NTZ) Therapy Normalize Brain Atrophy Rates and Quality of Life (QOL) in Relapsing Remitting Multiple Sclerosis (RRMS)?

NCT02588053
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 55 Years
Enrollment
85 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2019
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 17, 2019 · Synced Oct 17, 2026, 2:39 AM EDT
Completed No phase listed Observational

A Longitudinal Study of Brain Atrophy in MS Patients Over 5 Years

NCT01847287
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Not listed
Lead sponsor
University at Buffalo
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated May 7, 2013 · Synced Oct 17, 2026, 2:39 AM EDT
Completed Phase 2 Interventional Results available

Multicenter Study Of Natalizumab Plus Standard Steroid Treatment For High Risk Acute Graft-Versus-Host Disease

NCT02133924
View directory record Official record
Conditions
Acute Graft Versus Host Disease
Interventions
natalizumab, steroids
Drug
Lead sponsor
John Levine
Other
Eligibility
18 Years and older
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
12
States / cities
Duarte, California • Atlanta, Georgia • Chicago, Illinois + 7 more
Source: ClinicalTrials.gov public record
Updated Oct 21, 2022 · Synced Oct 17, 2026, 2:39 AM EDT
Withdrawn Not applicable Interventional

Sensation, Motion, and Quality of Life on Natalizumab and Off Natalizumab

NCT05172466
View directory record Official record
Conditions
Relapsing-remitting Multiple Sclerosis (RRMS)
Interventions
BeCare application
Device
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years to 60 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 25, 2022 · Synced Oct 17, 2026, 2:39 AM EDT
Completed No phase listed Observational

Pregnancy Exposure Registry for Tysabri®

NCT00472992
View directory record Official record
Conditions
Crohn's Disease, Prenatal Exposure, Multiple Sclerosis, Pregnancy
Interventions
Not listed
Lead sponsor
Biogen
Industry
Eligibility
Female only
Enrollment
376 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Aug 11, 2014 · Synced Oct 17, 2026, 2:39 AM EDT
Completed Phase 3 Interventional Results available

Natalizumab Re-Initiation of Dosing

NCT00306592
View directory record Official record
Conditions
Multiple Sclerosis, Relapsing-Remitting
Interventions
BG00002 (natalizumab)
Biological
Lead sponsor
Biogen
Industry
Eligibility
18 Years and older
Enrollment
404 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
53
States / cities
Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 46 more
Source: ClinicalTrials.gov public record
Updated Mar 21, 2017 · Synced Oct 17, 2026, 2:39 AM EDT
Terminated Phase 3 Interventional Results available

Efficacy and Safety of Daclizumab in Participants With RRMS Switching From Natalizumab

NCT02881567
View directory record Official record
Conditions
Relapsing-Remitting Multiple Sclerosis (RRMS)
Interventions
Daclizumab
Drug
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 55 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
3
States / cities
Tampa, Florida • Des Moines, Iowa • Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 27, 2019 · Synced Oct 17, 2026, 2:39 AM EDT
Completed Phase 2 Interventional Results available

Phase 2 Efficacy, Safety, and Tolerability Study of Natalizumab in Focal Epilepsy

NCT03283371
View directory record Official record
Conditions
Epilepsy, Focal Seizures, Partial Seizures
Interventions
Natalizumab, Placebo
Drug · Other
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 75 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
31
States / cities
Birmingham, Alabama • Phoenix, Arizona • San Diego, California + 26 more
Source: ClinicalTrials.gov public record
Updated Dec 14, 2021 · Synced Oct 17, 2026, 2:39 AM EDT
Withdrawn Phase 1Phase 2 Interventional

Natalizumab in Recurrent, Refractory or Progressive Pulmonary Metastatic Osteosarcoma

NCT03811886
View directory record Official record
Conditions
Pulmonary Metastatic Osteosarcoma (pOS)
Interventions
Natalizumab
Drug
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
5 Years to 30 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 15, 2025 · Synced Oct 17, 2026, 2:39 AM EDT
Completed No phase listed Observational

A Study of MSDx Complex 1 as a Marker for Therapy Response in Multiple Sclerosis

NCT01541618
View directory record Official record
Conditions
Relapsing Remitting Multiple Sclerosis
Interventions
MSDX Complex-1 Biomarker test
Other
Lead sponsor
MSDx, Inc.
Industry
Eligibility
45 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 2, 2020 · Synced Oct 17, 2026, 2:39 AM EDT
Terminated Phase 3 Interventional Results available

A Clinical Study of the Efficacy of Natalizumab on Reducing Disability Progression in Participants With Secondary Progressive Multiple Sclerosis

NCT01416181
View directory record Official record
Conditions
Secondary Progressive Multiple Sclerosis
Interventions
natalizumab, Placebo
Drug
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 58 Years
Enrollment
889 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
35
States / cities
Phoenix, Arizona • Tucson, Arizona • Fullerton, California + 29 more
Source: ClinicalTrials.gov public record
Updated Sep 11, 2017 · Synced Oct 17, 2026, 2:39 AM EDT
Completed Phase 4 Interventional

NAPS-MS: NAtalizumab Effects on Parameters of Sleep in Patients With Multiple Sclerosis Experiencing Fatigue or Sleepiness

NCT01591551
View directory record Official record
Conditions
Multiple Sclerosis, Relapsing-Remitting
Interventions
Natalizumab (Tysabri)
Drug
Lead sponsor
Cornerstone Health Care, PA
Other
Eligibility
18 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
3
States / cities
Patchogue, New York • High Point, North Carolina • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jan 29, 2014 · Synced Oct 17, 2026, 2:39 AM EDT
Completed No phase listed Observational

Pilot Study to Assess Disease Stability in a Natalizumab to Dimethyl Fumarate Crossover Design

NCT01945359
View directory record Official record
Conditions
Relapsing Remitting Multiple Sclerosis
Interventions
Not listed
Lead sponsor
Rocky Mountain MS Research Group, LLC
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Oct 16, 2015 · Synced Oct 17, 2026, 2:39 AM EDT
Completed No phase listed Observational Results available

Evaluating the Efficacy and Safety of Transitioning Patients From Natalizumab to Ocrelizumab

NCT03157830
View directory record Official record
Conditions
Relapsing Remitting Multiple Sclerosis
Interventions
Not listed
Lead sponsor
Providence Health & Services
Other
Eligibility
18 Years to 65 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
5
States / cities
Livingston, New Jersey • Portland, Oregon • Richland, Washington + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 17, 2026, 2:39 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Impact of Natalizumab Versus Fingolimod in Relapsing-Remitting Multiple Sclerosis (RRMS) Participants

NCT02342704
View directory record Official record
Conditions
Relapsing-Remitting Multiple Sclerosis
Interventions
natalizumab, fingolimod
Drug
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 60 Years
Enrollment
111 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
12
States / cities
Aurora, Colorado • Colorado Springs, Colorado • Port Charlotte, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2017 · Synced Oct 17, 2026, 2:39 AM EDT
Completed Phase 2 Interventional Results available

Treatment Interruption of Natalizumab

NCT01071083
View directory record Official record
Conditions
Relapsing Remitting Multiple Sclerosis
Interventions
natalizumab, interferon beta 1-a, methylprednisolone, IV placebo, glatiramer acetate
Drug · Other
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 60 Years
Enrollment
175 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
20
States / cities
Cullman, Alabama • San Francisco, California • Fort Collins, Colorado + 15 more
Source: ClinicalTrials.gov public record
Updated Sep 19, 2013 · Synced Oct 17, 2026, 2:39 AM EDT