Discovery of VU6024578/BI02982816: An mGlu1 Positive Allosteric Modulator with Efficacy in Preclinical Antipsychotic and Cognition Models

Herein, we report progress toward a metabotropic glutamate receptor subtype 1 (mGlu1) positive allosteric modulator (PAM) clinical candidate and the discovery of VU6024578/BI02982816. From a weak high-throughput screening hit (VU0538160, EC50 > 10 μM, 71% Glumax), optimization efforts improved fu...

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Veröffentlicht in:Journal of medicinal chemistry 2024-12, Vol.67 (24), p.22291-22312
Hauptverfasser: Reed, Carson W., Kalbfleisch, Jacob F., Turkett, Jeremy A., Trombley, Trevor A., Nastase, Anthony F., Spearing, Paul K., Haymer, Daniel H., Sarwar, Mohammad Moshin, Quitalig, Marc, Dickerson, Jonathan W., Blobaum, Annie L., Boutaud, Olivier, Voehringer, Patrizia, Schuelert, Niklas, Cho, Hyekyung P., Niswender, Colleen M., Rook, Jerri M., Priepke, Henning, Ursu, Daniel, Conn, P. Jeffrey, Melancon, Bruce J., Lindsley, Craig W.
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container_end_page 22312
container_issue 24
container_start_page 22291
container_title Journal of medicinal chemistry
container_volume 67
creator Reed, Carson W.
Kalbfleisch, Jacob F.
Turkett, Jeremy A.
Trombley, Trevor A.
Nastase, Anthony F.
Spearing, Paul K.
Haymer, Daniel H.
Sarwar, Mohammad Moshin
Quitalig, Marc
Dickerson, Jonathan W.
Blobaum, Annie L.
Boutaud, Olivier
Voehringer, Patrizia
Schuelert, Niklas
Cho, Hyekyung P.
Niswender, Colleen M.
Rook, Jerri M.
Priepke, Henning
Ursu, Daniel
Conn, P. Jeffrey
Melancon, Bruce J.
Lindsley, Craig W.
description Herein, we report progress toward a metabotropic glutamate receptor subtype 1 (mGlu1) positive allosteric modulator (PAM) clinical candidate and the discovery of VU6024578/BI02982816. From a weak high-throughput screening hit (VU0538160, EC50 > 10 μM, 71% Glumax), optimization efforts improved functional potency over 185-fold to deliver the selective (inactive on mGlu2–5,7,8) and CNS penetrant (rat Kp = 0.99, Kp,uu = 0.82; MDCK-MDR1 ER = 1.7, Papp = 73 × 10–6 cm/s) mGlu1 PAM (VU6024578/BI02982816, EC50 = 54 nM, 83% Glumax). An excellent rat pharmacokinetic profile allowed the evaluation of VU6024578/BI02982816 in both amphetamine-induced hyperlocomotion (minimum effective dose (MED) = 3 mg/kg, p.o.) and MK-801 induced disruptions of novel object recognition (MED = 10 mg/kg p.o.), thus providing efficacy in preclinical models of psychosis and cognition. However, unanticipated AEs in dog prevented further consideration as a candidate. Thus, VU6024578/BI02982816 can serve as a best-in-class in vivo rodent tool to study selective mGlu1 activation.
doi_str_mv 10.1021/acs.jmedchem.4c02554
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title Discovery of VU6024578/BI02982816: An mGlu1 Positive Allosteric Modulator with Efficacy in Preclinical Antipsychotic and Cognition Models
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