4 minute read
Jul. 24, 2023

A diaziridine-based tumor-activated prodrug for AKR1C3-expressing cancers from a defunct Bay Area biotech.

OBI-3424

IV AKR1C3-activated cytotoxin prodrug Ph. I/II in advanced solid tumors prodrug of DNA cross-linking agent Br. J. Cancer, May 12, 2023 OBI Pharma, TW; Threshold Pharma, CA

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Drug Hunter Team
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A diaziridine-based tumor-activated prodrug for AKR1C3-expressing cancers from a defunct Bay Area biotech. OBI-3424 (formerly TH-3424) is a tumor-activated prodrug in Ph. II that releases DNA-crosslinking diaziridine phosphamide (remniscent of thioTEPA) upon activation by the NAD(P)H-dependent aldoketoreductase, AKR1C3, which is differentially expressed in many cancers. The molecule was originated at...

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