Catalyst Biosciences, Inc. (NasdaqCM:CBIO) announced a strategic decision to halt the clinical development of MarzAA, report data to date, and seek a buyer for its hemophilia assets. Catalyst plans to focus its resources on its complement therapeutics and protease medicines platform. The Company also reported its operating and financial results for the third quarter ended September 30, 2021. Dr. Nassim Usman, Ph.D., Chief Executive Officer continued: "We are exploring opportunities to license or sell our MarzAA and DalcA (engineered FIX) portfolios and will donate any standard-of-care to the centers where patients are enrolled. Halting development of MarzAA will allow us to reduce our burn rate by approximately 40% and focus our investment on our highly promising complement therapeutics and protease medicines platform. We want to thank our study subjects, clinical trial investigators and site staff, employees, and investors for their partnership and commitment to the MarzAA programs over the last several years".