Substance P: Difference between revisions

>Kaylee
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==Drugs that target Substance P==
==Drugs that target Substance P==


Due to its association with largely negative phenomena (pain, stress responses, affective disorders, and vomiting), drug development has been focused on Substance P antagonists. Since SP is a high-affinity ligand for the NK1 receptor, NK1 receptor antagonists were the first to be developed. However, SP also binds to NK2 and NK3 receptors and related neuropeptides have higher affinity for these receptors, so development of antagonists for these receptors has also been pursued. There are a number of NK1 antagonists attested in the medical literature, but few of them are in use. They include:
Due to its association with largely negative phenomena (pain, stress responses, affective disorders, and vomiting), substance development has been focused on Substance P antagonists. Since SP is a high-affinity ligand for the NK1 receptor, NK1 receptor antagonists were the first to be developed. However, SP also binds to NK2 and NK3 receptors and related neuropeptides have higher affinity for these receptors, so development of antagonists for these receptors has also been pursued. There are a number of NK1 antagonists attested in the medical literature, but few of them are in use. They include:


* Aprepitant is a failed antidepressant that succeeded in clinical trials for chemotherapy-induced vomiting and nausea (CIVN) and was FDA approved for treating CIVN in 2004.
* Aprepitant is a failed antidepressant that succeeded in clinical trials for chemotherapy-induced vomiting and nausea (CIVN) and was FDA approved for treating CIVN in 2004.