Details
Stereochemistry | ACHIRAL |
Molecular Formula | C21H17FN2O2 |
Molecular Weight | 348.3703 |
Optical Activity | NONE |
Defined Stereocenters | 0 / 0 |
E/Z Centers | 0 |
Charge | 0 |
SHOW SMILES / InChI
SMILES
CC1=C(CC2=NC3=C(C=CC=C3)C=C2)C4=C(C=CC(F)=C4)N1CC(O)=O
InChI
InChIKey=FATGTHLOZSXOBC-UHFFFAOYSA-N
InChI=1S/C21H17FN2O2/c1-13-17(11-16-8-6-14-4-2-3-5-19(14)23-16)18-10-15(22)7-9-20(18)24(13)12-21(25)26/h2-10H,11-12H2,1H3,(H,25,26)
Molecular Formula | C21H17FN2O2 |
Molecular Weight | 348.3703 |
Charge | 0 |
Count |
|
Stereochemistry | ACHIRAL |
Additional Stereochemistry | No |
Defined Stereocenters | 0 / 0 |
E/Z Centers | 0 |
Optical Activity | NONE |
DescriptionSources: http://www.atopixtherapeutics.com/research-and-development/OC459.html | https://www.ncbi.nlm.nih.gov/pubmed/24073896Curator's Comment: http://www.atopixtherapeutics.com/press-releases/Atopix%20-%20OC459%20Ph2%20Atopic%20Dermatitis%20Study%20Final%20-%2017Feb16.pdf
https://www.ncbi.nlm.nih.gov/pubmed/22106101
Sources: http://www.atopixtherapeutics.com/research-and-development/OC459.html | https://www.ncbi.nlm.nih.gov/pubmed/24073896
Curator's Comment: http://www.atopixtherapeutics.com/press-releases/Atopix%20-%20OC459%20Ph2%20Atopic%20Dermatitis%20Study%20Final%20-%2017Feb16.pdf
https://www.ncbi.nlm.nih.gov/pubmed/22106101
OC-459 is a highly potent and selective CRTH2 antagonist which is active on both the recombinant and native human receptor. The Atopix lead compound OC-459 is effective in improving lung function and symptoms in patients with atopic eosinophilic asthma. This group represents 40-50% of all asthmatics and the magnitude of improvement in the responder population is equivalent to high dose inhaled corticosteroids. OC-459 has also been shown to reduce both nasal and eye symptoms in allergic subjects exposed to grass pollen. Of particular interest is the ability of OC-459 to reduce the rate of respiratory infections, an effect related to reduction in Th2 immunity which has a damaging effect on host defence. OC-459 has also demonstrated an excellent safety profile in around 800 subjects exposed drug and no safety issues have been highlighted in long term toxicology. OC-459 is in Phase 2 clinical trial in patients with moderate to severe atopic dermatitis.
Originator
Approval Year
Overview
CYP3A4 | CYP2C9 | CYP2D6 | hERG |
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OverviewOther
Other Inhibitor | Other Substrate | Other Inducer |
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Drug as perpetrator
Target | Modality | Activity | Metabolite | Clinical evidence |
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no [IC50 >30 uM] | ||||
no [IC50 >30 uM] | ||||
no [IC50 >30 uM] | ||||
Sources: https://pubmed.ncbi.nlm.nih.gov/19608418/ |
yes |
Drug as victim
Target | Modality | Activity | Metabolite | Clinical evidence |
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no |
PubMed
Title | Date | PubMed |
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Pharmacologic profile of OC000459, a potent, selective, and orally active D prostanoid receptor 2 antagonist that inhibits mast cell-dependent activation of T helper 2 lymphocytes and eosinophils. | 2012 Feb |
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Update on the status of DP2 receptor antagonists; from proof of concept through clinical failures to promising new drugs. | 2014 Jan |
Patents
Sample Use Guides
In Vivo Use Guide
Sources: https://www.ncbi.nlm.nih.gov/pubmed/24866478
25 mg once daily, 200 mg once daily or 100 mg twice daily
Route of Administration:
Oral
In Vitro Use Guide
Sources: https://www.ncbi.nlm.nih.gov/pubmed/22106101
OC-459 inhibited chemotaxis (IC₅₀ = 0.028 uM) of human Th2 lymphocytes and cytokine production (IC₅₀ = 0.019 uM) by human Th2 lymphocytes.
Substance Class |
Chemical
Created
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Record UNII |
04XB9TB8OL
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NCI_THESAURUS |
C574
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NO STRUCTURE GIVEN |
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TARGET -> INHIBITOR |
A post hoc analysis revealed that the greatest improvement of lung function by timapiprant was observed in patients with active eosinophilia (≥250/μl peripheral blood) and—even more pronounced—in younger patients (90). This applies also for the humanized murine IL-5 antibody mepolizumab, which is most effective and only given in asthma patients with severe eosinophilic airway inflammation (91). In eosinophil esophagitis, timapiprant significantly reduced the esophageal eosinophil load and induced some clinical improvement (92). Timapiprant also successfully reduced nasal and ocular symptoms in allergic subjects exposed to grass pollen (93).
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