HB2198
/ Hinge Bio, Kyorin
- LARVOL DELTA
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October 18, 2025
Topologically Engineered, Superdimeric α-CD19 x α-CD20 Bispecific Antibodies with Dual Enhanced Fc Domains: New Class of Natural Killer (NK)/Monocyte Engagers for Deep B Cell Depletion in Lupus Nephritis
(KIDNEY WEEK 2025)
- "These include NK/monocyte engagers (i.e., CD16a engagers) comprising two α-CD19 (huFMC63) and two α-CD20 (rituximab) targeting domains, and two Fc domains incorporating S239D/I332E mutations that enhance Fcγ receptor binding. First-in-human trials are anticipated in 2025. GEM-DIMER TM technology used to create clinical candidate HB2198"
IO biomarker • Glomerulonephritis • Immunology • Inflammatory Arthritis • Lupus • Lupus Nephritis • Nephrology • Systemic Lupus Erythematosus • CD20 • FCGR3A
October 13, 2025
Hinge Bio Announces FDA Clearance of Investigational New Drug Application for HB2198, a Novel B cell-Depleting Agent, for Patients with Systemic Lupus Erythematosus and Lupus Nephritis
(GlobeNewswire)
- "Phase 1 trial to investigate novel multi-specific HB2198 to treat B cell-mediated autoimmune disorders by targeting both CD19 and CD20 plus enhanced immune cell engagement via dual Fc domains."
IND • New P1 trial • Lupus Nephritis • Systemic Lupus Erythematosus
September 30, 2025
Hinge Bio…announced it has entered into a collaboration and license agreement with Kyorin Pharmaceutical Co., Ltd ('Kyorin') for development of Hinge Bio’s multispecific antibody-based therapeutic HB2198 in Japan for multiple autoimmune indications, starting with Systemic Lupus Erythematosus ('SLE')
(GlobeNewswire)
- "Hinge Bio to receive $10 million upfront and is eligible to receive $95 million for the SLE indication and additional payments for other indications; includes contingent R&D investment, tiered sales royalties, and a portion of investment to global development....Hinge Bio’s lead candidate from its GEM-DIMER platform, HB2198, is expected to enter clinical development during 2H 2025."
Licensing / partnership • New trial • Systemic Lupus Erythematosus
September 04, 2025
Hinge Bio, Inc…has published preclinical proof-of-concept data from its lead program, HB2198, designed to provide deep depletion of B cells to treat autoimmune diseases including Systemic Lupus Erythematosus ('Lupus' or 'SLE') in Scientific Reports.
(The Manila Times)
Preclinical • Systemic Lupus Erythematosus
August 28, 2025
Anti-CD19/CD20 bispecific antibody with dual Fc domains mediates enhanced effector functions and durable depletion of memory B cells in vivo.
(PubMed, Sci Rep)
- "HB2198 incorporates Fab domains from rituximab and humanized FMC63 (huFMC63) for bivalent binding of both CD19 and CD20 and comprises two enhanced Fc domains to enable powerful effector functions via bivalent binding of Fcγ receptors (FcγR). In cynomolgus monkeys, HB2198 administration resulted in > 99% depletion of circulating B cells within 1-3 days and mediated a durable shift in proportions of naïve and memory B cells in vivo. These data support the conclusion that HB2198 may provide an improved treatment option when potent and broad depletion of both CD19+ and CD20+ cells is required."
Journal • Preclinical • Hematological Disorders • Hematological Malignancies • Immunology • Inflammatory Arthritis • Oncology
January 15, 2025
Hinge Bio Raises $30 Million Series A’ Financing to Develop Next-Generation Therapies via its Proprietary GEM-DIMER Platform
(GlobeNewswire)
- "Hinge Bio, Inc...today announced the close of a Series A’ financing led by Point72...The proceeds will support entry of the Company’s lead product candidate, HB2198, into a Phase 1 clinical trial in patients living with Systemic Lupus Erythematosus ('Lupus') as well as development of additional therapeutics from Hinge Bio’s proprietary GEM-DIMER platform to treat diseases with high unmet need...Hinge Bio’s lead candidate from its GEM-DIMER platform, HB2198, is expected to enter clinical development during 2025."
Financing • New P1 trial • Systemic Lupus Erythematosus
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