MedPath

Natalizumab

Generic Name
Natalizumab
Brand Names
Tysabri, Tyruko
Drug Type
Biotech
CAS Number
189261-10-7
Unique Ingredient Identifier
3JB47N2Q2P
Background

Natalizumab is a recombinant humanized IgG4κ monoclonal antibody that binds to α4-integrin. While natalizumab was originally approved by the FDA to treat multiple sclerosis in 2004, it was withdrawn from the market following multiple reports of fatal progressive multifocal leukoencephalopathy (PML). In 2006, the FDA reintroduced the drug to the market for multiple sclerosis. Natalizumab was further approved by the FDA for the treatment of Crohn's Disease in January 2008.

On August 24, 2023, the first biosimilar to natalizumab, natalizumab-sztn, was approved by the FDA.

Indication

Natalizumab is indicated as monotherapy for the treatment of relapsing forms of multiple sclerosis, including clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease in adults.

It is also indicated for inducing and maintaining clinical response and remission in adult patients with moderately to severely active Crohn’s disease with evidence of inflammation who have had an inadequate response to or are unable to tolerate, conventional therapies and inhibitors of TNF-α. It is not to be used in combination with immunosuppressants or inhibitors of TNF-α.

Associated Conditions
Relapsing Remitting Multiple Sclerosis (RRMS), Secondary Progressive Multiple Sclerosis (SPMS), Severe Crohn's Disease, Moderate Crohn’s Disease

Natalizumab in the Treatment of Rheumatoid Arthritis in Subjects Receiving Methotrexate

Phase 2
Terminated
Conditions
Rheumatoid Arthritis
Interventions
Drug: placebo
First Posted Date
2004-06-03
Last Posted Date
2016-07-18
Lead Sponsor
Biogen
Target Recruit Count
299
Registration Number
NCT00083759
Locations
🇺🇸

Clinical Pharmacology Study Group, Worcester, Massachusetts, United States

🇺🇸

Justus Fiechtner, MD, PC, Lansing, Michigan, United States

🇨🇦

The Arthritis Program Research Group Inc., Newmarket, Ontario, Canada

and more 9 locations

A Clinical Trial of Natalizumab in Individuals With Moderately to Severely Active Crohn's Disease

Phase 3
Completed
Conditions
Crohn's Disease
First Posted Date
2004-03-08
Last Posted Date
2016-06-16
Lead Sponsor
Biogen
Target Recruit Count
462
Registration Number
NCT00078611
Locations
🇺🇸

Morowitz, Marion, Laessing, Shocket, Bashir, Steinberg, Salcedo, Washington, District of Columbia, United States

🇨🇦

University of Calgary, Calgary, Alberta, Canada

🇨🇦

University of Alberta, Edmonton, Alberta, Canada

and more 72 locations

Safety and Efficacy of Natalizumab in Combination With Remicade in the Treatment of Crohn's Disease

Phase 2
Completed
Conditions
Crohn's Disease
First Posted Date
2003-03-06
Last Posted Date
2016-06-16
Lead Sponsor
Biogen
Target Recruit Count
60
Registration Number
NCT00055536
Locations
🇺🇸

Wake Research Associates, Raleigh, North Carolina, United States

🇺🇸

University of Kentucky Medical Center, Lexington, Kentucky, United States

🇺🇸

Memphis Gastroenterology Group, Memphis, Tennessee, United States

and more 15 locations

Safety, Tolerability and Effectiveness of Natalizumab in Adolescents With Active Crohn's Disease

Phase 2
Completed
Conditions
Crohn's Disease
First Posted Date
2003-02-28
Last Posted Date
2016-06-16
Lead Sponsor
Biogen
Target Recruit Count
30
Registration Number
NCT00055367
Locations
🇺🇸

The Children's Hospital, Boston, Massachusetts, United States

🇺🇸

Johns Hopkins University School of Medicine, Baltimore, Maryland, United States

🇺🇸

Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States

and more 10 locations

Safety and Efficacy of Natalizumab in the Treatment of Crohn's Disease

Phase 3
Completed
Conditions
Crohn's Disease
First Posted Date
2002-04-04
Last Posted Date
2016-06-16
Lead Sponsor
Biogen
Registration Number
NCT00032786

Safety and Efficacy of Natalizumab in the Treatment of Crohn's Disease

Phase 3
Completed
Conditions
Crohn's Disease
First Posted Date
2002-04-04
Last Posted Date
2016-06-16
Lead Sponsor
Biogen
Target Recruit Count
905
Registration Number
NCT00032799
Locations
🇺🇸

Elan Pharmaceuticals, San Diego, California, United States

Safety and Efficacy of Natalizumab in Combination With Avonex in the Treatment of Multiple Sclerosis

Phase 3
Completed
Conditions
Multiple Sclerosis, Relapsing-Remitting
Interventions
Drug: Placebo
First Posted Date
2002-02-18
Last Posted Date
2009-06-18
Lead Sponsor
Biogen
Target Recruit Count
1200
Registration Number
NCT00030966
Locations
🇺🇸

Mercy Hospital Outpatient Pharmacy, Des Moines, Iowa, United States

🇺🇸

University of Pittsburgh, Department of Neurology, Pittsburgh, Pennsylvania, United States

🇩🇪

Asklepios Klinik Schildautal, Seesen/Harz, Germany

and more 84 locations

Safety and Efficacy of Natalizumab in the Treatment of Multiple Sclerosis

Phase 3
Completed
Conditions
Multiple Sclerosis, Relapsing-Remitting
Interventions
Drug: Placebo
First Posted Date
2001-12-03
Last Posted Date
2017-01-09
Lead Sponsor
Biogen
Target Recruit Count
900
Registration Number
NCT00027300
Locations
🇬🇧

Oldchurch Hospital, Essex, United Kingdom

🇧🇪

National MS Centrum, Melsbroek, Belgium

🇺🇸

University of Miami School of Medicine, Department of Neurology, Miami, Florida, United States

and more 50 locations
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