Monograph Details

Gastrointestinal Tract > Colorectal disorders
TYSABRI
Manufacturer
Biogen Idec, Inc.
Legal Classification
Rx
Pharmacological Class
Immunomodulator (integrin receptor antagonist).
Generic Name
Natalizumab 300mg/15mL; soln; for IV infusion after dilution; preservative-free.
Indications
In moderately-to-severely active Crohn's disease: to induce and maintain clinical response and remission in adult patients with evidence of inflammation who have had inadequate response to or are intolerant to conventional therapy and TNF-α inhibitors.
Children
<18yrs: not recommended.
Adults
≥18yrs: Give by IV infusion over 1 hour; monitor during and for 1 hour post-infusion. 300mg every 4 weeks. Discontinue after 12 weeks of induction therapy if no therapeutic response, or if unable to taper off chronic concomitant steroids within 6 mos of starting therapy. May continue with aminosalicylates.
Contraindications
Progressive multifocal leukoencephalopathy (PML).
Precautions
Renal or hepatic insufficiency. Monitor for signs and symptoms of progressive multifocal leukoencephalopathy; discontinue if occurs. Reevaluate periodically (at 3months and 6months post-infusion, then every 6months thereafter). Immunosuppression. Vaccinations. Elderly. Pregnancy (Cat.C). Nursing mothers: not recommended.
Interactions
Concomitant other immunosuppressants or TNF-α inhibitors: not recommended.
Adverse Reactions
Infections, allergic reactions (discontinue if occurs; do not restart), hepatotoxicity (monitor and discontinue if occurs), nausea, cholelithiasis, urticaria, headache, fatigue, arthralgia, inj site reactions; antibody formation (if persistent, may substantially reduce efficacy); changes in blood cell counts; intestinal obstruction or stenosis, abdominal adhesions.
Extra Text
Note: This product is only available through the TOUCH prescribing program. For more information call (800) 456-2255.
How Supplied
Single-use vial (300mg)—1