MEI Pharma Reports Second Quarter Fiscal Year 2024 Results and Operational Highlights

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SAN DIEGO, February 13, 2024--(BUSINESS WIRE)--MEI Pharma, Inc. (Nasdaq: MEIP), a clinical-stage pharmaceutical company evaluating novel drug candidates to address known resistance mechanisms to standard-of-care cancer therapies, today reported results for the three and six months ended December 31, 2023, and highlighted recent corporate events.

"In the ongoing clinical studies for both voruciclib, our oral CDK9 inhibitor, and ME-344, our inhibitor of mitochondrial oxidative phosphorylation, we are gratified by strong investigator support and enrollment that remains on-track, and we look forward to preliminary study read-outs in the near future," said David M. Urso, president and chief executive officer of MEI Pharma. "We are planning to report initial safety and efficacy data during the first half of this calendar year for both voruciclib and ME-344, which are intended to provide preliminary clinical validation and support the further development of our programs."

Select Second Quarter Fiscal Year 2024 and Recent Highlights

  • In January 2024, MEI presented a Trials in Progress poster of the ongoing Phase 1b study of ME-344, our mitochondrial oxidative phosphorylation (OXPHOS) inhibitor, evaluating the combination with bevacizumab (Avastin®) in refractory metastatic colorectal cancer patients at the 2024 ASCO Gastrointestinal Cancers Symposium.

  • In December 2023, MEI presented a poster reporting complete clinical data from the monotherapy dose escalation stage of the Phase 1 study evaluating voruciclib, our selective oral cyclin-dependent kinase 9 ("CDK9") inhibitor, in patients with relapsed or refractory ("R/R") acute myeloid leukemia ("AML") or B-cell malignancies at the 65th American Society of Hematology Annual Meeting and Exposition. Also reported was the early experience of voruciclib in combination with venetoclax (Venclexta®), a B-cell lymphoma 2 ("BCL2") inhibitor, in the ongoing stage of the study evaluating the combination.

Expected Drug Candidate Pipeline Developments

Voruciclib – Oral CDK9 inhibitor in Phase 1 Study

  • We expect to report clinical data from the dose escalation portion of the ongoing Phase 1 clinical trial evaluating voruciclib plus venetoclax in patients with R/R AML in the first calendar quarter of 2024.

This updated voruciclib program guidance reflects continuation of the dose escalation portion of the study evaluating the combination with venetoclax in patients with R/R AML. Because we are seeing clinical activity, including complete responses, and no dose limiting toxicities, we decided in agreement with the investigators to evaluate additional dose levels before selecting a dose for the expansion cohort. We have completed enrollment of the group evaluating a 300 mg dose of voruciclib in combination with venetoclax.