Olcegepant, formerly known as BIBN-4096 or BIBN-4096BS is is the first potent and selective non-peptide antagonist of the calcitonin gene-related peptide 1 (CGRP1) receptor, a key modulator in neurogenic inflammatory pain. In preclinical studies, olcegepant attenuated arterial dilation induced by CGRP or electrical stimulation. In a phase II clinical trial, olcegepant reduced the severity of headache in 60% of migraine sufferers and met secondary endpoints including headache-free rate and rate of sustained response. The compound appears to be an effective anti-migraine medication that is well tolerated and does not display the vasoconstrictive effect that precludes the use of triptans and dihydroergotamine in certain patients. References: Yao G, Yu T, Han X, Mao X, Li B. Therapeutic effects and safety of olcegepant and telcagepant for migraine: A meta-analysis. Neural Regen Res. 2013 Apr 5;8(10):938-47. doi: 10.3969/j.issn.1673-5374.2013.10.009. PubMed PMID: 25206386; PubMed Central PMCID: PMC4145922.

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CAS：204697-65-4