Inhibition of glutaminase-1 (GLS-1) hampers the proliferation of tumor cells reliant on glutamine. Known glutaminase inhibitors have potential limitations, and in vivo exposures are potentially limited due to poor physicochemical properties. We initiated a GLS-1 inhibitor discovery program focused on optimizing physicochemical and pharmacokinetic properties, and have developed a new selective inhibitor, compound 27 (IPN60090), which is currently in phase 1 clinical trials. Compound 27 attains high oral exposures in preclinical species, with strong in vivo target engagement, and should robustly inhibit glutaminase in humans.
This study demonstrates that Bwom shows promise as a mobile application to educate women about pelvic floor exercises by providing user-friendly actions in an understandable way.
Cerclage in twin pregnancies significantly decreased the rate of spontaneous preterm birth <32 weeks compared to expectant management. However, when stratified by cerclage indication, this decrease in primary outcome only remained significant in the group with cervical dilation.
Indoleamine
2,3-dioxygenase 1 (IDO1), a heme-containing enzyme
that mediates the rate-limiting step in the metabolism of l-tryptophan to kynurenine, has been widely explored as a potential
immunotherapeutic target in oncology. We developed a class of inhibitors
with a conformationally constrained bicyclo[3.1.0]hexane core. These
potently inhibited IDO1 in a cellular context by binding to the apoenzyme,
as elucidated by biochemical characterization and X-ray crystallography.
A SKOV3 tumor model was instrumental in differentiating compounds,
leading to the identification of IACS-9779 (62) and IACS-70465
(71). IACS-70465 has excellent cellular potency, a robust
pharmacodynamic response, and in a human whole blood assay was more
potent than linrodostat (BMS-986205). IACS-9779 with a predicted human
efficacious once daily dose below 1 mg/kg to sustain >90% inhibition
of IDO1 displayed an acceptable safety margin in rodent toxicology
and dog cardiovascular studies to support advancement into preclinical
safety evaluation for human development.
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