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Updated: Nov 15, 2025

Isolation and Purification of Fungal β-Glucan as an Immunotherapy Strategy for Glioblastoma
Published on: June 2, 2023
Ibrexafungerp: A First-in-Class Oral Triterpenoid Glucan Synthase Inhibitor
Sabelle Jallow1, Nelesh P Govender1,2
1Centre for Healthcare-Associated Infections, Antimicrobial Resistance and Mycoses (CHARM), National Institute for Communicable Diseases, a Division of the National Health Laboratory Service, Johannesburg 2131, South Africa.
Abstract:
Ibrexafungerp (formerly SCY-078 or MK-3118) is a first-in-class triterpenoid antifungal or "fungerp" that inhibits biosynthesis of β-(1,3)-D-glucan in the fungal cell wall, a mechanism of action similar to that of echinocandins. Distinguishing characteristics of ibrexafungerp include oral bioavailability, a favourable safety profile, few drug-drug interactions, good tissue penetration, increased activity at low pH and activity against multi-drug resistant isolates including C. auris and C. glabrata. In vitro data has demonstrated broad and potent activity against Candida and Aspergillus species. Importantly, ibrexafungerp also has potent activity against azole-resistant isolates, including biofilm-forming Candida spp., and echinocandin-resistant isolates. It also has activity against the asci form of Pneumocystis spp., and other pathogenic fungi including some non-Candida yeasts and non-Aspergillus moulds. In vivo data have shown IBX to be effective for treatment of candidiasis and aspergillosis. Ibrexafungerp is effective for the treatment of acute vulvovaginal candidiasis in completed phase 3 clinical trials.
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