Additionally, Selecta has published a peer-reviewed online article describing pre-clinical data from its study investigating the efficacy of co-administration of ImmTOR nanoparticles with AAV vectors in transgene expression in methylmalonic acidemia in the journal Molecular TherapyMethods & Clinical Development. In the study, performed in collaboration with the National Human Genome Research Institute, researchers evaluated the therapeutic efficacy of co-administration of ImmTOR and an AAV vector in a mouse model of MMA. After the initial dose, immediate increases in transgene expression and reduction of plasma methylmalonic acid, a marker of therapeutic activity, were observed in mice treated with both ImmTOR and AAV. Repeated administration of AAV vectors enabled by ImmTOR resulted in increased vector transduction and further decreases in plasma methylmalonic acid that was dose dependent. The combination was well-tolerated and led to near complete inhibition of neutralizing antibodies to the AAV vector. These data support the use of ImmTOR in combination with AAV-driven gene therapy to mitigate the current detrimental impacts of immunogenicity to AAV, potentially enabling re-dosing and elevated transgene expression at the initial dose.