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Genentech announced positive results from the Phase 3 CLL11 study, Leukemia Trial

Afutuzumab
Obinutuzumab (GA101)
Genentech announced positive results from the Phase 3 CLL11 study. At a pre-planned interim analysis, an independent data monitoring committee determined that the study met its primary endpoint showing that GA101 plus chlorambucil helped people live significantly longer without their disease worsening (progression-free survival; PFS) compared to Rituxan (rituximab) plus chlorambucil.
The CLL11 study is being conducted in cooperation with the German CLL Study Group (GCLLSG). These final data were reached well ahead of the target completion date in 2014 as a result of the magnitude of difference seen between the two study arms.
Afutuzumab is a monoclonal antibody being developed by Hoffmann-La Roche Inc. for the treatment of lymphoma.[1] It acts as an immunomodulator.[2][3] It was renamed obinutuzumab in 2009.[4]
Class/mechanism: Glyco-engineered anti-CD20 IgG1 type II monoclonal antibody. Engineered with a modified elbow hinge residue (valine instead of leucine at Kabat position 11) and a glyco-engineered Fc region, which is postulated to enhance its immunomodulatory effect.[1]
Route: IV
Extravasation: no information
For conciseness and simplicity, HemOnc.org currently will focus on treatment regimens and not list information such as: renal/hepatic dose adjustments, metabolism (including CYP450), excretion, monitoring parameters (although this will be considered for checklists), or manufacturer.
- Robak, T (2009). “GA-101, a third-generation, humanized and glyco-engineered anti-CD20 mAb for the treatment of B-cell lymphoid malignancies”. Current opinion in investigational drugs (London, England : 2000) 10 (6): 588–96. PMID 19513948.
- Statement On A Nonproprietary Name Adopted By The Usan Council – Afutuzumab, American Medical Association.
- International Nonproprietary Names for Pharmaceutical Substances (INN), World Health Organization.
- International Nonproprietary Names for Pharmaceutical Substances (INN), World Health Organization.

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Roche’s Phase III leukemia drug Obinutuzumab (GA101) yields positive results
- GA101 is the first glycoengineered, type II anti-CD20 mAb.

Roche’s Phase III leukemia drug Obinutuzumab (GA101) yields positive results
Obinutuzumab (GA101)
| Formula | C6512H10060N1712O2020S44 |
|---|
GA101 is the first glycoengineered, type II anti-CD20 monoclonal antibody (mAb) that has been designed for increased antibody-dependent cellular cytotoxicity (ADCC) and Direct CellDeath.1 This agent is being investigated in collaboration with Biogen Idec.
Swiss pharmaceutical company Roche has announced that its early Phase III trial of Leukemia drug obinutuzumab (GA101) demonstrated significantly improved progression-free survival in people with chronic lymphocytic leukemia (CLL).
The positive results yield from stage 1 of a three-arm study called CLL11, designed to investigate the efficacy and safety profile of obinutuzumab (GA101) plus chlorambucil, a chemotherapy, compared with chlorambucil alone in people with previously untreated chronic lymphocytic leukemia (CLL).
This phase of the study met its primary endpoint and an improvement in progression-free survival was achieved; obinutuzumab plus chlorambucil significantly reduced the risk of disease worsening or death compared to chlorambucil alone.
Roche chief medical officer and global product development head Hal Barron said; “the improvement in progression-free survival seen with GA101 is encouraging for people with CLL, a chronic illness of older people for which new treatment options are needed.”
“GA101 demonstrates our ongoing commitment to the research and development of new medicines for this disease.”
Obinutuzumab is Roche’s most advanced drug in development for the treatment of hematological malignancies.
It has been specifically designed as the first glycoengineered, type 2 anti-CD20 monoclonal antibody in development for B cell malignancies.
Afutuzumab is a monoclonal antibody being developed by Hoffmann-La Roche Inc. for the treatment of lymphoma.[1] It acts as an immunomodulator.[2][3] It was renamed obinutuzumab in 2009.[4]
References
- Robak, T (2009). “GA-101, a third-generation, humanized and glyco-engineered anti-CD20 mAb for the treatment of B-cell lymphoid malignancies”. Current opinion in investigational drugs (London, England : 2000) 10 (6): 588–96. PMID 19513948.
- Statement On A Nonproprietary Name Adopted By The Usan Council – Afutuzumab,American Medical Association.
- International Nonproprietary Names for Pharmaceutical Substances (INN), World Health Organization.
- International Nonproprietary Names for Pharmaceutical Substances (INN), World Health Organization.
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obinutuzumab isMonoclonal antibody Type Whole antibody Source Humanized (from mouse) Target CD20
DRUG APPROVALS BY DR ANTHONY MELVIN CRASTO
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