brimapitide   Click here for help

GtoPdb Ligand ID: 9101

Synonyms: AM-111 | D-JNKI-1 | XG-102
Immunopharmacology Ligand
Comment: Brimapitide is a highly selective, non-competitive, long-acting inhibitor of c-jun N-terminal kinase (JNK). The peptide is an investigational drug for the intratympanic (i.t.) treatment of acute sensorineural hearing loss (ASNHL). Structurally the peptide consists of 20 amino acids from C-Jun-amino-terminal kinase-interacting protein 1 (JIP-1) fused to a carrier peptide derived from HIV-TAT48-57 (TAT) peptide PPRRRQRRKKRG. The peptide is constructed in a D-retro-inverso configuration to render it protease resistant. The TAT peptide mediates cell permeability. The sequence is claimed in patent US8080517 (SEQ ID NO: 11, D-JNKI1) [2]. The research codes XG-102 and AM-111 seem to be applied to this investigational agent.
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No information available.
Summary of Clinical Use Click here for help
AM-111 has been granted orphan drug status in the European Union and the USA for the treatment of acute sensorineural hearing loss. Phase 2 clinical trial results for ths indication are published in [5]. A Phase 2I trial in patients with acute inner ear hearing loss is ongoing (NCT02561091). An additional Phase 2I trial (NCT02508337) evaluating Brimaptide's ability to reduce intraocular inflammation and pain following cataract surgery is also underway.
Mechanism Of Action and Pharmacodynamic Effects Click here for help
Brimaptide is a cell-permeable peptide. It selectively prevents the protein-protein interaction between JNK and its targets, thereby blocking JNK MAPK mediated apoptosis of stress injured hair cells and neurons in the cochlea [1,3].
Clinical Trials
Clinical Trial ID Title Type Source Comment References
NCT02508337 Efficacy and Safety of XG-102 in Reduction of Post-cataract Surgery Intraocular Inflammation and Pain Phase 3 Interventional Xigen SA
NCT02561091 AM-111 in the Treatment of Acute Inner Ear Hearing Loss Phase 3 Interventional Auris Medical, Inc.