Bispecific fusion antibodies with enhanced serum half-life

摘要

Drug compositions, fusions and conjugates are provided. The drug fusions and conjugates contain a therapeutic or diagnostic agent that is fused or conjugated to an antigen-binding fragment of an antibody that binds serum albumin. The drug compositions, fusions and conjugates have a longer in vivo half-life in comparison with the unconjugated or unfused therapeutic or diagnostic agent.