Details
| Stereochemistry | ACHIRAL |
| Molecular Formula | C20H13F3N4O2S |
| Molecular Weight | 430.403 |
| Optical Activity | NONE |
| Defined Stereocenters | 0 / 0 |
| E/Z Centers | 0 |
| Charge | 0 |
SHOW SMILES / InChI
SMILES
CC(=O)NC1=NC2=C(OC3=NC=NC(=C3)C4=CC=C(C=C4)C(F)(F)F)C=CC=C2S1
InChI
InChIKey=YUTIXVXZQIQWGY-UHFFFAOYSA-N
InChI=1S/C20H13F3N4O2S/c1-11(28)26-19-27-18-15(3-2-4-16(18)30-19)29-17-9-14(24-10-25-17)12-5-7-13(8-6-12)20(21,22)23/h2-10H,1H3,(H,26,27,28)
DescriptionCurator's Comment: Description was created based on several sources, including https://www.ncbi.nlm.nih.gov/pubmed/18386885
Curator's Comment: Description was created based on several sources, including https://www.ncbi.nlm.nih.gov/pubmed/18386885
AMG-517, a potent and selective vanilloid receptor (VR1) antagonist, was in clinical trials with Amgen for the treatment of pain. AMG 517 inhibits CAP- (500 nM), acid- (pH 5.0), or heat-(45 °C) induced 45Ca2+ influx into human TRPV1-expressing CHO Cells with IC50 of 0.76 nM, 0.62 nM and 1.3 nM. AMG-517 blocks capsaicin-, proton-, and heat-induced inward currents in TRPV1-expressing cells similarly. AMG-517 inhibits native TRPV1 activation by capsaicin in rat dorsal root ganglion neurons with an IC50 value of 0.68 nM. Oral administration of AMG-517 produces a dose-dependent increase in plasma concentrations, it also produces a dose-dependent decrease in the number of flinches induced by capsaicin treatment. The minimally effective dose (MED), based on a statistically significant difference in number of flinches from the vehicle versus capsaicin-administered group, is 0.3 mg/kg for AMG 517. The corresponding plasma concentrations are 90 to 100 ng/mL for AMG-517. AMG-517 (3 mg/kg) exhibits significant reductions in capsaicin-induced flinch up to 24 h after dosing. AMG 517 blocks thermal hyperalgesia in CFA model of pain. Unfortunately, clinical studies of AMG-517 were discontinued due to the hyperthermia observed after exposure to single and multiple doses.
CNS Activity
Originator
Approval Year
Cmax
| Value | Dose | Co-administered | Analyte | Population |
|---|---|---|---|---|
211 ng/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/18337008/ |
25 mg single, oral dose: 25 mg route of administration: Oral experiment type: SINGLE co-administered: |
AMG-517 plasma | Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: UNKNOWN |
|
105 ng/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/18337008/ |
5 mg 1 times / day multiple, oral dose: 5 mg route of administration: Oral experiment type: MULTIPLE co-administered: |
AMG-517 plasma | Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: UNKNOWN |
|
45.2 ng/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/18337008/ |
2 mg 1 times / day multiple, oral dose: 2 mg route of administration: Oral experiment type: MULTIPLE co-administered: |
AMG-517 plasma | Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: UNKNOWN |
|
199 ng/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/18337008/ |
10 mg 1 times / day multiple, oral dose: 10 mg route of administration: Oral experiment type: MULTIPLE co-administered: |
AMG-517 plasma | Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: UNKNOWN |
Doses
| Dose | Population | Adverse events |
|---|---|---|
10 mg 1 times / day multiple, oral Highest studied dose Dose: 10 mg, 1 times / day Route: oral Route: multiple Dose: 10 mg, 1 times / day Sources: |
healthy |
Other AEs: Hyperthermia... |
25 mg single, oral Highest studied dose |
healthy |
Other AEs: Hyperthermia... |
AEs
| AE | Significance | Dose | Population |
|---|---|---|---|
| Hyperthermia | 10 mg 1 times / day multiple, oral Highest studied dose Dose: 10 mg, 1 times / day Route: oral Route: multiple Dose: 10 mg, 1 times / day Sources: |
healthy |
|
| Hyperthermia | 1 pt | 25 mg single, oral Highest studied dose |
healthy |
PubMed
| Title | Date | PubMed |
|---|---|---|
| Improved pharmacokinetics of AMG 517 through co-crystallization. Part 1: comparison of two acids with corresponding amide co-crystals. | 2010-09 |
|
| Discovery of novel 6,6-heterocycles as transient receptor potential vanilloid (TRPV1) antagonists. | 2010-04-22 |
|
| Manufacture of pharmaceutical co-crystals using twin screw extrusion: a solvent-less and scalable process. | 2010-04 |
|
| Analgesic potential of TRPV1 antagonists. | 2009-08-01 |
|
| Enhanced bioavailability of a poorly soluble VR1 antagonist using an amorphous solid dispersion approach: a case study. | 2009-05-13 |
|
| Characterization and optimization of AMG 517 supersaturatable self-emulsifying drug delivery system (S-SEDDS) for improved oral absorption. | 2009-02 |
|
| Substituted aryl pyrimidines as potent and soluble TRPV1 antagonists. | 2008-09-15 |
|
| The co-crystal approach to improve the exposure of a water-insoluble compound: AMG 517 sorbic acid co-crystal characterization and pharmacokinetics. | 2008-09 |
|
| On the thermoregulatory perils of TRPV1 antagonism. | 2008-05 |
|
| Pharmacological blockade of the vanilloid receptor TRPV1 elicits marked hyperthermia in humans. | 2008-05 |
|
| 4-Aminopyrimidine tetrahydronaphthols: a series of novel vanilloid receptor-1 antagonists with improved solubility properties. | 2008-03-15 |
|
| Trisubstituted pyrimidines as transient receptor potential vanilloid 1 (TRPV1) antagonists with improved solubility. | 2007-12-01 |
|
| Repeated administration of vanilloid receptor TRPV1 antagonists attenuates hyperthermia elicited by TRPV1 blockade. | 2007-10 |
|
| Novel vanilloid receptor-1 antagonists: 3. The identification of a second-generation clinical candidate with improved physicochemical and pharmacokinetic properties. | 2007-07-26 |
|
| Novel vanilloid receptor-1 antagonists: 2. Structure-activity relationships of 4-oxopyrimidines leading to the selection of a clinical candidate. | 2007-07-26 |
Sample Use Guides
In Vivo Use Guide
Sources: https://www.ncbi.nlm.nih.gov/pubmed/18337008
Healthy adults were randomized to receive a single daily dose over 7 days of either placebo or 2, 5 or 10 mg AMG -517
Route of Administration:
Oral
In Vitro Use Guide
Sources: https://www.ncbi.nlm.nih.gov/pubmed/17652633
AMG-517 inhibits CAP- (500 nM), acid- (pH 5.0), or heat-(45 °C) induced 45Ca2+ influx into human TRPV1-expressing CHO Cells with IC50 of 0.76 nM, 0.62 nM and 1.3 nM.
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AMG-517
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172V4FBZ75
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