BI-1206 

BI-1206 is a recombinant and antagonistic human monoclonal antibody targeting FcγRIIB (CD32B). BI-1206 can block CD20 internalization induced by Rituximab (HY-P9913) itself or combined with others including Ibrutinib (HY-10997), Venetoclax (HY-15531), and CHOP. BI-1206 can enhance or recover the activity of Rituximab or other anti-CD20 monoclonal antibodies. BI-1206 has cytolytic activity against malignant B cells. BI-1206 can be studied for cancer research such as mantle cell lymphoma (MCL)^[1][3].

BI-1206 (5 μg/mL, 0-5 h) blocks Rituximab (5 μg/mL)-induced and Rituximab-based combination with Ibrutinib or Venetoclax or CHOP-induced CD20 internalization effectively in JeKo-1 cells^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

BI-1206 (10 mg/kg, i.v., twice a week) is highly potent in blocking tumor growth in Ibrutinib-Venetoclax dual resistant MCL PDX (PDX-A) NSG mice model^[1].
BI-1206 (10 mg/kg, i.v., twice a week) inhibits tumor growth when combined with Rituximab in Rituximab-Ibrutinib-CAR T-triple resistant MCL PDX (PDX-B) NSG mice model^[1].
BI-1206 (10 mg/kg, i.v., twice a week for 14 d) has better efficacy and prolonged survival in the triple combination group with Ibrutinib or Venetoclax compared to dual combinations without BI-1206 in JeKo-1 CDX mice model^[1].
BI-1206 (10 mg/kg, i.v., twice a week) shows superior anti-tumor activity and prolonged survival when combined with Venetoclax compared to any single or dual combination in Ibrutinib-Rituximab-Venetoclax triple-resistant MCL PDX (PDX-C) model^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

[BI-1206]

Please store the product under the recommended conditions in the Certificate of Analysis.

• [1]. Jiang VC, et al., Targeting FcγRIIB by antagonistic antibody BI-1206 improves the efficacy of rituximab-based therapies in aggressive mantle cell lymphoma. J Hematol Oncol. 2022 Apr 11;15(1):42.  [Content Brief]

  [2]. Changying Jiang, et al., BI-1206, a Monoclonal Antibody Against Fcγriib, Showed Superior Anti-Tumor Activity in an Ibrutinib-Venetoclax Dual Resistant PDX Model in Mantle Cell Lymphoma, Blood, Volume 134, Supplement 1, 2019, Page 2863, ISSN 0006-4971.

  [3]. Mårtensson, L.et al., A novel FcγRIIB-blocking antibody to enhance FcγR-dependent antitumor immunity with anti-HER2 therapy[J]. Cancer Research, 2022, 82(12_Supplement): 3423-3423.