Cothera Bioscience Acquires Zotiraciclib from Adastra Pharmaceuticals

On October 6, 2021 Cothera Bioscience Inc. and Adastra Pharmaceuticals Inc., private biopharmaceutical companies focused on the development of first-in-class therapeutics for the treatment of cancer, reported a definitive agreement under which Cothera has acquired zotiraciclib (ZTR), an oral kinase inhibitor that readily crosses the blood brain barrier and possesses a unique mechanism of action of Myc depletion via the inhibition of cyclin-dependent kinase 9 (CDK9) (Press release, Cothera Bioscience, OCT 6, 2021, View Source [SID1234627381]). Financial terms of the asset purchase were not disclosed.

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In June 2021, the results of the zotiraciclib Phase 1b clinical trial were published in Clinical Cancer Research. The conclusion of the Phase 1b trial found that Zotiraciclib combined with temozolomide (TMZ) is safe in patients with recurrent high-grade astrocytomas.

After the conclusion of the trial a successful Type B meeting with the U.S. Food and Drug Administration Division of Oncology (D02) was held. The transition of ZTR from Adastra to Cothera enables the execution of clinical development plans built on input from the FDA meeting, as well as insight from global neuro-oncology thought-leaders and clinical investigators.

"The acquisition of zotiraciclib fits nicely into the Cothera portfolio of differentiated drug candidates synergistically aligning to our current research efforts to address cancers driven by the Myc oncogene," said Alex Wu, Ph.D., President and Chief Executive Officer and Founder of Cothera. "Importantly, zotiraciclib adds to the Cothera portfolio of therapeutics that hold promise for cancer patients around the world."

Scott Megaffin, Chief Executive Officer of Adastra, said, "I want to thank all the physicians and dedicated healthcare providers who have put forward relentless effort on behalf of their patients as the Adastra team transitions zotiraciclib into Cothera."

Vernon Jiang, Ph.D., Executive Vice President and Co-Founder of Cothera, added, "We are grateful to Adastra for its important work with physicians within neuro-oncology. Cothera is enthusiastic to build upon these relationships, as we believe highly in the promise of zotiraciclib in high-grade gliomas and pediatric mid-line gliomas such as Diffuse Intrinsic Pointe Glioma (DIPG).