BL-1020 (perphenazine4-aminobutanoate) is an investigational orally-active antipsychotic for the possible treatment of schizophrenia, it's an ester of GABA and perphenazine, and pharmacologically it acts as a D2 antagonist and GABA agonist. It has shown pro-cognitive effects in the trials. In March 2013, it went into the II/III trial phase. It has been introduced by BioLineRx, a biopharmaceutical development company.
^Geffen Y, Keefe R, Rabinowitz J, Anand R, Davidson M (September 2012). "Bl-1020, a new γ-aminobutyric acid-enhanced antipsychotic: results of 6-week, randomized, double-blind, controlled, efficacy and safety study". The Journal of Clinical Psychiatry. 73 (9): e1168-74. doi:10.4088/jcp.12m07642. PMID23059159.