LANCOVUTIDE, also known as duramycin, is a 19-amino-acid tetracyclic peptide antibiotic. It is in clinical development for the treatment of cystic fibrosis (CF). It activates an alternative chloride channel in lung epithelial cells by elevating intracellular calcium levels, and may potentially compensate for CF transmembrane conductance regulator deficiency in the airway epithelium and increase the volume of the airway surface liquid.

Cibinetide (ARA 290; helix B surface peptide) is a novel potent and selective peptide agonist of innate repair receptor (IRR) with anti-inflammatory and tissue-protective activities. IRR activation promotes tissue protection and repair in a wide variety of preclinical models, including diabetic wound healing, diabetic neuropathy, and ischemic retinopathy. In a mouse model of diabetic small nerve fiber loss, daily administration of Cibinetide reversed neuronal dystrophy. Cibinetide administration significantly improved re-epithelization, angiogenesis, and wound healing strength in a mouse model of diabetic wounds. In clinical studies, Cibinetide administration has shown significantly increased small nerve fiber abundance, reduced neuropathic symptoms and promoted nerve fiber repair in patients with sarcoidosis or diabetes-related nerve fiber loss.