PLEASANTON, Calif. & SEOUL, South Korea--(BUSINESS WIRE)--CBT Pharmaceuticals (CBT), a U.S. and China-based innovative biopharmaceutical company committed to becoming a leader in the discovery and development of oncology combination therapies, and CrystalGenomics, Inc., (KOSDAQ:083790), a Korea-based biopharmaceutical company with drug discovery, development and commercialization capabilities, today announced a co-development agreement for an investigational combination therapy of CBT-501 and CG200745 across a variety of solid tumors with high unmet medical needs.
Under the terms of the exclusive agreement, CBT and CrystalGenomics will be responsible for the co-development and global commercialization of the combination of CBT-501 and CG200745 in multiple tumor types. A Phase Ib/II study is expected to be initiated by the end of this year.
“This partnership with CrystalGenomics enables CBT to leverage their clinical development expertise while further strengthening our immuno-oncology combination approach to deliver promising best-in-class treatments to patients with cancer,” Sanjeev Redkar, Ph.D., President and Chief Executive Officer. “We believe the combination therapy of CBT-501 and CG200745 has the potential to be synergistic for patients across a range of cancers where alternative therapies are needed.”
"We are excited to work with the CBT team, who are uniquely qualified to accelerate development of our novel HDAC inhibitor in combination with CBT-501, a differentiated anti-PD1 antibody” said Joong Myung Cho, Ph.D., Chairman and Chief Executive Officer of CrystalGenomics.
Immune checkpoint inhibitors such as the programmed death receptor-1 (PD-1) and ligand (PD-L1) have been considered as major breakthroughs in the treatment of various cancers including melanoma, renal, lung, and bladder cancers. However, despite the robust efficacy observed in these cancers, the majority of patients either do not respond or eventually relapse due to resistance which may be innate or acquired. There has been recent reports suggesting immune enhancing effects of HDAC inhibitors, in addition to their direct anti-tumor properties, making CG200745 a good candidate for combination therapy with CBT-501 for its immunomodulatory effects in addressing the patient population that do not respond to single agent immunotherapy.
About CBT-501
CBT-501 is a novel IgG4 humanized monoclonal
antibody against the Programmable Death-1 (PD-1) membrane receptor on
immune cells. It has a comparable efficacy profile in in vitro and in
vivo studies to the marketed anti-PD-1 antibodies, nivolumab and
pembrolizumab, and has a favorable profile with very low
antibody-dependent cell-mediated cytotoxicity (ADCC) and complement
dependent cytotoxicity (CDC) activity. CBT-501 is under evaluation in
two Phase I trials designed to evaluate the safety, tolerability,
pharmacokinetics and pharmacodynamics in patients with advanced solid
tumors, recurrent or refractory to standard of care therapies
(NCT03053466, NCT03374007).
About CG200745
CG200745, is a novel pan-HDAC
inhibitor currently in Phase II clinical study for pancreatic cancer
(NCT02737228) and Phase Ib for myelodysplastic syndrome (NCT02737462) in
Korea. CG200745 has the potential to be a
best-in-class compound based on preclinical and interim Phase Ib/II
clinical data and is projected to have superior pharmacokinetic (PK)
profile, pharmacodynamic (PD) response, efficacy, and safety, over other
HDAC inhibitors. In its first-in-human study of the toxicity, PK and
PD in patients with refractory solid malignancies, stable disease was
observed in 57.1% of the subjects treated with CG200745 as monotherapy
and excellent safety profile was observed as the maximum tolerated dose
(MTD) was never reached (NCT01226407).
About CBT Pharmaceuticals
CBT Pharmaceuticals, Inc. is an
innovative biopharmaceutical company committed to becoming a global
leader in the discovery and development of oncology combination
therapies that harness the immune system and target specific molecular
pathways to tame cancer. The company’s existing pipeline of five
development-stage assets include three novel humanized monoclonal
antibodies that restore the body’s immune system to recognize and kill
cancer cells, and two targeted therapies against uncontrolled growth
signaling pathways. For more information, please visit www.cbtpharma.com and
follow us on Twitter @CBTpharma.
About CrystalGenomics
CrystalGenomics, Inc. is a
commercial stage biopharmaceutical company focused in the
structure-based drug discovery and development of novel therapeutics in
unmet medical need areas of inflammation, oncology, and infectious
disease. In addition to several drug programs in the research and
development pipeline, the company has a drug on the market for
osteoarthritis and has recently added commercial manufacturing, sales
and marketing capabilities through multiple acquisitions.
CrystalGenomics, Inc. is listed on KOSDAQ (083790). www.cgxinc.com
or www.crystalgenomics.com.