CASI Pharmaceuticals, Inc. and BioInvent International AB announced preliminary encouraging efficacy data for BI-1206 in combination with rituximab in patients with relapsed/refractory (R/R) indolent Non-Hodgkin's Lymphoma (iNHL) in the ongoing development program in China. The results are consistent with the clinical data that have been previously reported by BioInvent. BI-1206 is being developed to re-establish the clinical efficacy of cancer therapies such as rituximab by addressing fundamental resistance mechanisms to cancer treatments.

The clinical efficacy results reported, including a long-lasting complete response, reinforce previously reported data.