Authors
Hans Gelderblom, Emanuela Palmerini, Michiel van de Sande, Javier Martin-Broto, Gabriel Tinoco, Elyse Seltzer, Madhu Davies, Ruth Coll, Sander Veltkamp, Jean-Yves Blay
Published in
Future oncology (London, England). Pages 1-11. Jul 20, 2026. Epub Jul 20, 2026.
Abstract
Tenosynovial giant cell tumors (TGCT) are rare, locally aggressive neoplasms causing pain, stiffness, swelling, limited range of motion, and joint degeneration, which can be debilitating. Therapeutic options include surgery or systemic therapy with colony-stimulating factor 1 receptor (CSF-1R) pathway inhibitors. However, many are not amenable to surgery or have high postsurgical recurrence rates. Available systemic therapies require long-term administration and can have burdensome side effects. Emactuzumab is a novel, potent, CSF-1R inhibiting monoclonal antibody with a unique mechanism of action targeting the receptor dimerization interface of the CSF-1R to reduce tumor-associated macrophages and inflammation within the TGCT microenvironment. It is the only short-course, intravenous therapy in development for TGCT. In a phase I study, emactuzumab resulted in robust and durable responses, and a manageable safety profile in patients with TGCT, supporting further research as a treatment option to address unmet need and improve quality of life in patients with TGCT. TANGENT is a randomized, double-blind, global, phase III study (NCT05417789) to investigate the safety and efficacy of intravenous emactuzumab versus placebo in patients with TGCT not amenable to surgery.Clinical trial registration: www.clinicaltrials.gov identifier is NCT05417789 initially registered on 1 June 2022.
PMID:
42473802
Bibliographic data and abstract were imported from PubMed on 20 Jul 2026.
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