Abstract: The present disclosure relates generally to disruption of genomic complexes associated with fusion genes via a disrupting agent comprising a targeting moiety and/or an effector, e.g., disrupting, moiety. Described herein are experiments directed at identifying target anchor sequences proximal to fusion genes, e.g., fusion oncogenes; targeting the genomic complexes, e.g., CFLs, comprising said target anchor sequences for disruption (e.g., inhibiting their formation and/or destabilizing them) using disrupting agents; and evaluating the effects of disruption on fusion gene expression and other cell (e.g., cancer cell) characteristics (e.g., growth, viability, etc.).