Iodine I 131 tositumomab
Alternative Names: 131-I-anti-B1 antibody; 131-I-tositumomab; Anti-CD20 murine monoclonal antibody-I-131; B1; Bexxar; I-131 anti-B1 antibody; Iodine 131 tositumomab; Iodine-131 anti-B1 antibody; Tositumomab; TST/I131-TSTLatest Information Update: 05 Nov 2023
At a glance
- Originator Corixa Corp
- Developer GlaxoSmithKline
- Class Antineoplastics; Drug conjugates; Immunoconjugates; Monoclonal antibodies; Radiopharmaceuticals
- Mechanism of Action Apoptosis stimulants; Immunostimulants; Ionising radiation emitters
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Orphan Drug Status
Orphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases.
- New Molecular Entity Yes
Highest Development Phases
- Market Withdrawal Non-Hodgkin's lymphoma
- Discontinued Mantle-cell lymphoma
Most Recent Events
- 20 Feb 2014 Withdrawn for Non-Hodgkin's lymphoma (Refractory metastatic disease) in USA and Canada (IV)
- 07 Aug 2013 GlaxoSmithKline announces intention to withdraw iodine I 131 tositumomab (Barrax®) from the market in USA and Canada on 20 February 2014
- 01 Jun 2013 GlaxoSmithKline and Corixa complete a phase II clinical trial in Mantle cell lymphoma (first-line combination therapy) in USA (NCT00992992)