New AML drug Vanflyta approved in Korea

Oral targeted therapy for FLT3-ITD–positive AML with poor prognosis

Demonstrated a 22% reduction in mortality risk versus chemotherapy alone

Daiichi Sankyo Korea (CEO Jeong-tae Kim) announced on the 26th that its acute myeloid leukemia (AML) targeted therapy Vanflyta (quizartinib) has been approved in Korea.

With this approval, Vanflyta can now be used in combination with standard cytarabine and anthracycline induction and standard cytarabine consolidation therapy, and as a maintenance mono therapy following consolidation therapy, for adult patients with newly diagnosed acute myeloid leukemia that is FLT3-ITD-positive.

AML accounts for approximately 23.1% of all leukemia cases worldwide, and around 2,000 adults are newly diagnosed with AML each year in Korea. FLT3 mutations are the most commonly reported genetic alterations in AML, with approximately 25% of newly diagnosed AML patients harboring the FLT3-ITD mutation. The FLT3-ITD mutation is associated with a high disease burden and poor prognosis, including shortened overall survival.

The efficacy and safety of Vanflyta were evaluated over a long-term period of more than five years in the Phase III QuANTUM-First trial, a randomized, double-blind, placebo-controlled study involving 539 patients with newly diagnosed FLT3-ITD–positive AML.

Patients enrolled in the study received induction and consolidation combination therapy followed by up to 3 years of maintenance monotherapy with Vanflyta, regardless of whether they underwent allogeneic hematopoietic stem cell transplantation.

Results showed a 22% reduction in the risk of death in the Vanflyta group compared with the placebo group. At a median follow-up of 39.2 months, the median overall survival (mOS) was 31.9 months in the Vanflyta group, an extension compared with 15.1 months in the placebo group.

Jeong-tae Kim, CEO of Daiichi Sankyo Korea, stated, “We are very pleased to be able to provide a new first-line treatment option for patients with poor prognosis FLT3-ITD mutation-positive AML with the approval of Vanflyta. Following solid tumors, we are now introducing a therapy that can improve treatment outcomes in hematologic malignancies  as well. We will continue our endeavors to make meaningful progress to expand treatment access for more patients in Korea.”

Byung-sik Cho, Chair of the Acute Myeloid Leukemia/Myelodysplastic Syndrome Working Group of the Korean Society of Hematology (Professor of Hematology at Seoul St. Mary’s Hospital), said, “Vanflyta has been confirmed to extend both complete remission duration and overall survival when administered as maintenance therapy following induction and consolidation therapy, added to standard chemotherapy in newly diagnosed FLT3-ITD mutation-positive AML patients based on its mechanism that selectively targets the FLT3-ITD mutation. This is expected to bring an important change to AML treatment strategies in Korea.”