- HMBD-001 is the first clinical stage asset generated by Hummingbird’s proprietary Rational Antibody Discovery (RAD) platform
Houston and Singapore, August 2, 2021 – Hummingbird Bioscience, an innovative clinical-stage biotech company focused on developing precision therapies against hard-to-drug targets, today announced that the UK Medicines and Healthcare Products Regulatory Agency (MHRA) has approved the clinical trial application (CTA) to initiate first-in-human phase 1 trial of HMBD-001 in patients with advanced cancers.
HMBD-001 is a novel antibody with a unique, differentiated mechanism of action that fully inhibits HER3 activation of the MAPK/PI3K tumor growth signaling pathway. By binding to the HER3 dimerization interface, HMBD-001 blocks the formation of all HER3 dimers, regardless of NRG1 ligand-binding or HER2/EGFR overexpression. Pre-clinical studies in multiple HER3 cancer models, including those with NRG1-fusions, have shown that these differentiated properties of HMBD-001 result in robust and sustained tumor growth inhibition.
The phase 1 trial will be a multi-center, open-label, dose-escalation and -expansion study, to be conducted in two parts. First, the safety and tolerability profile and recommended phase 2 dose of HMBD-001 will be determined in patients with advanced tumors known to overexpress HER3. This will be followed by further evaluation of safety and preliminary anti-tumor activity of HMBD-001 as a monotherapy in biomarker-selected patients, including those with NRG1 fusions, as well as in combination with other selected targeted therapies. Under a clinical development partnership agreement, Cancer Research UK will be funding and conducting the phase 1 trial in the UK.
“This marks an exciting next step in our journey to deliver a potentially transformative therapy for hard-to-treat cancers that express HER3 and are resistant to standard of care treatments,” said Jerome Boyd-Kirkup, Chief Scientific Officer and co-founder of Hummingbird Bioscience. “Our platform technology was developed specifically to tackle biologically relevant yet extremely challenging targets for which research efforts to-date have yet to generate effective treatments. HMBD-001 is the first of our growing pipeline of rationally designed antibodies to obtain clinical trial approval, demonstrating the power of the platform to develop highly differentiated, precision therapies.”