|Chemical and physical data|
|Molar mass||563.62 g/mol|
|3D model (Jmol)||Interactive image|
Frakefamide (INN) is a synthetic, fluorinated opioid tetrapeptide with the amino acid sequence Tyr-D-Ala-(p-F)Phe-Phe-NH2 which acts as a peripherally-specific, selective μ-opioid receptor agonist. Despite its inability to penetrate the blood-brain-barrier and enter the central nervous system, frakefamide has potent analgesic effects and, unlike centrally-acting opioids like morphine, does not produce respiratory depression, indicating that its antinociceptive effects are mediated by peripheral μ-opioid receptors. It was under development for the treatment of pain by AstraZeneca and Shire but was shelved after phase II clinical trials.
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- Neal G. Anderson (15 April 2012). Practical Process Research and Development: A Guide for Organic Chemists. Academic Press. p. 4. ISBN 978-0-12-386537-3. Retrieved 27 April 2012.
- Chas Bountra; Rajesh Munglani; William K. Schmidt (13 May 2003). Pain: Current Understanding, Emerging Therapies, And Novel Approaches To Drug Discovery. CRC Press. p. 400. ISBN 978-0-8247-8865-0. Retrieved 27 April 2012.