SCID mouse subcutaneous xenografts of human Raji and RAMOS lymphoma; reduced tumor growth
“The in vivo antitumor activity of tafasitamab monotherapy was evaluated using subcutaneous xenograft models in severe combined immunodeficiency (SCID) mice engrafted with human Raji and RAMOS lymphoma cells. Tafasitamab treatment resulted in reduction in tumor growth.”
✓ VerifiedFDA multi-discipline review, p. 45Source ↗
Why that model
Tafasitamab binds mouse Fc-gamma receptors with greater affinity than native IgG1, so human xenograft mouse models can test its efficacy
“Finally, tafasitamab binds with substantially greater affinity to mouse FcγRs compared to the native human IgG1 antibody. Hence, human xenograft mouse tumour models allow for testing of the antitumour efficacy of tafasitamab in vivo.”
EMA: in vitro and in vivo proof of concept for tafasitamab with lenalidomide in lymphoma established
“Hence, non-clinical in vitro and in vivo proof of concept of tafasitamab in combination with lenalidomide for the treatment of lymphomas appear established.”