Cylene Initiates Phase I Trial of CX-4945
Cylene Pharmaceuticals announced that it has initiated a Phase I clinical trial of its oral CK2 protein kinase
inhibitor, CX-4945, in patients with advanced solid tumors, Castleman's disease, or multiple myeloma. The primary endpoints of the oral dose escalating trial are determination of safety, tolerance and PK properties of CX-4945 and to select the appropriate dose for Phase II trials. In addition, multiple mechanism-related pharmacodynamic biomarkers that were validated in preclinical studies will also be evaluated in the trial to assess the ability of CX-4945 to hit its target in patients.
CX-4945 is a first-in-class, orally administered small molecule anticancer agent that delivers highly selective and potent inhibition of CK2, a constitutively active protein kinase that is overexpressed in a wide range of cancers. CK2 drives the excessive proliferation phenotype of cancer cells through its potentiating role in key cell survival pathways and angiogenesis. CX-4945 demonstrates potent tumor regression activity in murine xenograft models, as well as favorable PK/ADMET and safety properties in preclinical studies.
"CK2 overexpression drives key cell survival pathways and proliferation of cancer cells, but it has been notoriously difficult to inhibit because it has an unusual active site. CX-4945 represents the first potent and selective inhibitor of CK2 with a favorable safety profile and the ability to promote tumor regressions as a single agent in preclinical studies. We are delighted to have advanced CX-4945 into the clinic ahead of schedule, and we are thoughtfully planning our Phase II program in particular CK2 driven cancers."
The primary objectives of the study will be to determine the maximum tolerated dose (MTD) and dose limiting toxicities (DLTs) of CX-4945, and to define the phase II dose. The secondary objectives are to characterize the pharmacokinetics, as well as observe for signs of anti-tumor activity via pharmacodynamic as well as radiographic assessments.
About CX-4945: an oral CK2 protein kinase inhibitor, CX-4945 is a first-in-class small molecule that has been optimized to selectively inhibit CK2 activity. The CK2 protein kinase plays a multifunctional role in cell cycle regulation, signal transduction, transcriptional control, angiogenesis, apoptosis and inflammation. Because CK2 contributes to the cancer phenotype via multiple cellular events, CX-4945 has been designed with the objective of creating a multifunctional inhibitor by targeting a single protein and affecting potentially many cancers. CX-4945 demonstrates broad spectrum anti-proliferative activity against diverse cancer cell lines, and the data attribute the anti-tumor activity of CX-4945 to intracellular inhibition of the CK2 enzyme.
Source: Cylene Pharmaceuticals
inhibitor, CX-4945, in patients with advanced solid tumors, Castleman's disease, or multiple myeloma. The primary endpoints of the oral dose escalating trial are determination of safety, tolerance and PK properties of CX-4945 and to select the appropriate dose for Phase II trials. In addition, multiple mechanism-related pharmacodynamic biomarkers that were validated in preclinical studies will also be evaluated in the trial to assess the ability of CX-4945 to hit its target in patients.
CX-4945 is a first-in-class, orally administered small molecule anticancer agent that delivers highly selective and potent inhibition of CK2, a constitutively active protein kinase that is overexpressed in a wide range of cancers. CK2 drives the excessive proliferation phenotype of cancer cells through its potentiating role in key cell survival pathways and angiogenesis. CX-4945 demonstrates potent tumor regression activity in murine xenograft models, as well as favorable PK/ADMET and safety properties in preclinical studies.
"CK2 overexpression drives key cell survival pathways and proliferation of cancer cells, but it has been notoriously difficult to inhibit because it has an unusual active site. CX-4945 represents the first potent and selective inhibitor of CK2 with a favorable safety profile and the ability to promote tumor regressions as a single agent in preclinical studies. We are delighted to have advanced CX-4945 into the clinic ahead of schedule, and we are thoughtfully planning our Phase II program in particular CK2 driven cancers."
The primary objectives of the study will be to determine the maximum tolerated dose (MTD) and dose limiting toxicities (DLTs) of CX-4945, and to define the phase II dose. The secondary objectives are to characterize the pharmacokinetics, as well as observe for signs of anti-tumor activity via pharmacodynamic as well as radiographic assessments.
About CX-4945: an oral CK2 protein kinase inhibitor, CX-4945 is a first-in-class small molecule that has been optimized to selectively inhibit CK2 activity. The CK2 protein kinase plays a multifunctional role in cell cycle regulation, signal transduction, transcriptional control, angiogenesis, apoptosis and inflammation. Because CK2 contributes to the cancer phenotype via multiple cellular events, CX-4945 has been designed with the objective of creating a multifunctional inhibitor by targeting a single protein and affecting potentially many cancers. CX-4945 demonstrates broad spectrum anti-proliferative activity against diverse cancer cell lines, and the data attribute the anti-tumor activity of CX-4945 to intracellular inhibition of the CK2 enzyme.
Source: Cylene Pharmaceuticals
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