ARA-290 (cibinetide), a synthetic 11-amino acid peptide derived from erythropoietin's helix B domain, selectively activates the innate repair receptor (IRR) to deliver potent anti-inflammatory, cytoprotective, and regenerative effects—suppressing proinflammatory cytokines, attenuating microglial activation, promoting nerve regeneration, and resolving chronic inflammatory microenvironments—without erythropoietic or thrombotic risks
Store in a cool, dark place or freeze at -20°C for long term storage. Refrigerate after reconstitution
Name: ARA-290
CAS Number: 1208243-50-8
Molecular Formula: C₅₁H₈₄N₁₆O₂₁
Molecular Mass (monoisotopic/average): 1257.3 g/mol
PubChem ID (CID): 91810664
ARA-290 (cibinetide), an 11-amino acid erythropoietin-derived peptide, selectively activates the innate repair receptor (IRR) to promote tissue protection, anti-inflammatory signaling, and nerve regeneration without erythropoietic activity. In preclinical and clinical research, it has shown substantial promise as a disease-modifying therapy for neuropathic pain and small fiber neuropathy in conditions such as sarcoidosis, diabetes, and chemotherapy-induced peripheral neuropathy. Phase II studies have demonstrated that daily subcutaneous administration significantly increases corneal nerve fiber density, enhances intraepidermal nerve fiber regeneration, reduces pain intensity, improves sensory function, and augments quality-of-life measures, suggesting its potential to reverse neuropathic pathology by shifting chronic inflammatory microenvironments toward resolution and repair. Ongoing research continues to explore its broader applications in neuroinflammatory, metabolic, and post-injury regenerative contexts.
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