[EN] HETEROARYL DERIVATIVES AS SEPIAPTERIN REDUCTASE INHIBITORS<br/>[FR] DÉRIVÉS D'HÉTÉROARYLE À UTILISER EN TANT QU'INHIBITEURS DE SÉPIAPTÉRINE RÉDUCTASE
申请人:QUARTET MEDICINE INC
公开号:WO2017059191A1
公开(公告)日:2017-04-06
Inhibitors of sepiapterin reductase of formula (I) or (I'), wherein the substituents are defined as in the claims, and uses of sepiapterin reductase inhibitors in analgesia, treatment of acute and chronic pain, anti-inflammation, and immune cell regulation are disclosed.
HETEROARYL DERIVATIVES AS SEPIAPTERIN REDUCTASE INHIBITORS
申请人:Max-Planck-Gesellschaft zur Förderung der
Wissenschaften e.V.
公开号:EP3356345A1
公开(公告)日:2018-08-08
SEPIAPTERIN REDUCTASE INHIBITORS
申请人:QUARTET MEDICINE, INC.
公开号:US20170096435A1
公开(公告)日:2017-04-06
Inhibitors of sepiapterin reductase and uses of sepiapterin reductase inhibitors in analgesia, treatment of acute and chronic pain, anti-inflammation, and immune cell regulation are disclosed.
US9963462B2
申请人:——
公开号:US9963462B2
公开(公告)日:2018-05-08
Pharmacological Assessment of Sepiapterin Reductase Inhibition on Tactile Response in the Rat
作者:James T. Meyer、Brian A. Sparling、William J. McCarty、Maosheng Zhang、Marcus Soto、Stephen Schneider、Hao Chen、Jonathan Roberts、Helming Tan、Thomas Kornecook、Paul S. Andrews、Charles G. Knutson
DOI:10.1124/jpet.119.257105
日期:2019.11
There is an unmet medical need for nonopioid pain therapies in human populations; several pathways are under investigation for possible therapeutic intervention. Tetrahydrobiopterin (BH4) has received attention recently as a mediator of neuropathic pain. Recent reports have implicated sepiapterin reductase (SPR) in this pain pathway as a regulator of BH4 production. To evaluate the role of SPR inhibition on BH4 reduction, we developed analytical methods to monitor the relationship between the plasma concentration of test article and endogenous pterins and applied these in the rat spinal nerve ligation pain model. Sepiapterin is an endogenous substrate, which accumulates upon inhibition of SPR. In response to a potent inhibitor of SPR, plasma concentrations of sepiapterin increased proportionally with exposure. An indirect-effect pharmacokinetic/pharmacodynamic model was developed to describe the relationship between the plasma pharmacokinetics of test article and plasma sepiapterin levels in the rat, which was used to determine an in vivo SPR IC50 value. SPR inhibition and mechanical allodynia were assessed coordinately with pterin biomarkers in plasma and at the site of neuronal injury (i.e., dorsal root ganglion). Upon daily oral administration for 3 consecutive days, unbound plasma concentrations of test article exceeded the unbound in vivo rat SPR IC90 throughout the dose intervals, leading to a 60% reduction in BH4 in the dorsal root ganglion. Despite evidence for pharmacological modulation of the BH4 pathway, there was no significant effect on the tactile paw withdrawal threshold relative to vehicle-treated controls.