On June 12, 2025 Enterome SA, a clinical-stage company developing first-in-class OncoMimics immunotherapies to treat cancer, reported it has raised $19 million in a new private financing to advance its lead clinical program EO2463 OncoMimics immunotherapy to treat indolent non-Hodgkin lymphoma (iNHL) (Press release, Enterome, JUN 12, 2025, View Source [SID1234653842]). The new funds will be used to expand and finalize the ongoing Phase 1/2 SIDNEY clinical trial of EO2463 and prepare the candidate for a registrational trial.

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New U.S. investor The Institute for Follicular Lymphoma Innovation (IFLI), a global non-profit foundation dedicated to advancing research and treatment for follicular lymphoma, invested $9 million in the round, of which $5 million will be allocated to Enterome upon closing and an additional $4 million in conditional tranched funding.

Existing shareholders invested an additional $10 million including: SymBiosis, a U.S. venture capital firm; Seventure Partners, based in France; Lundbeckfonden BioCapital from Denmark; Primo Capital, an Italian venture capital and private equity firm; and The U.S. Leukemia & Lymphoma Society Therapy Acceleration Program (LLS TAP).

"Attracting highly specialized blood cancer investor IFLI to this financing demonstrates the conviction of our new and existing investors in the potential of OncoMimics for blood and solid tumor cancers," said Pierre Bélichard, Enterome’s Chief Executive Officer. "We currently are generating exciting clinical proof of concept data for EO2463 monotherapy in several iNHL patient populations included in the Phase 1/2 SIDNEY clinical trial. Most importantly, EO2463 has shown robust clinical efficacy and exceptional safety and tolerability – which is especially impressive for such a potent immunotherapy. This offers a new hope for these patients and a rare opportunity to create an entirely new market segment for an impactful therapeutic. This financing will enable us to continue the SIDNEY trial of EO2463 and prepare to launch a first pivotal Phase 3 trial of this candidate for the ‘watch-and-wait’ iNHL population."

The company presented interim SIDNEY dataat the American Society of Hematology (ASH) (Free ASH Whitepaper) conference in December 2024, showing highly encouraging responses in the Cohort 2 of "watch and wait" iNHL patients in the ongoing SIDNEY study. This population, as the name suggests, is generally not eligible to receive other treatments due to the unacceptable risk-benefit ratio (in this iNHL sub-population) of the most commonly used blood cancer therapies.

The company also recently disclosed having held positive meetings with both FDA (Type C meeting) and EMA (Scientific Advice), outlining a clear regulatory path to registration for marketing authorizations in "watch-and-wait" iNHL.

"This investment aligns with IFLI’s mission to accelerate the development of innovative therapies and precision biomarkers for follicular lymphoma," said Michel Azoulay, MD, Chief Medical Officer at IFLI. "EO2463 represents a novel class of synthetic, off-the-shelf Immunotherapeutics with a unique mechanism of action that selectively targets malignant B cells. We are particularly interested in supporting Enterome’s efforts to demonstrate EO2463’s clinical efficacy across multiple lines of therapy, including in relapsed and refractory settings."

Enterome recently announced that it will present new data showing EO2463 also has a meaningful impact when tested in combination with standard of care in relapsed and refractory iNHL patients at the International Conference on Malignant Lymphoma (ICML) in Lugano on June 21. Previous findings presented at ASCO (Free ASCO Whitepaper) in 2024 in the relapsed and refractory patient population further suggested the potential to identify individuals most likely to benefit from EO2463 treatment, supported by biomarker analyses.

Lore Gruenbaum, Chief Scientific Officer at LLS, said, "It is important for us to continue to support Enterome, a company working to develop novel therapeutics based on our shared commitment to create better therapies for blood cancers. LLS has invested over $1.8 billion in groundbreaking research since our inception in 1949. Our active partnership with Enterome, through our Therapy Acceleration Program, will continue to advance the clinical development of the OncoMimics family of novel immunotherapeutics for the benefit of blood cancer patients. We are particularly excited to help advance EO2463 which has shown promising signs of efficacy as monotherapy with excellent safety and tolerability in ‘watch-and-wait’ iNHL patients, who currently have no approved treatment options."

EO2463 is an innovative, off-the-shelf immunotherapy candidate that combines four synthetic OncoMimics peptides. These non-self, microbial-derived peptides correspond to CD8 HLA-A2 epitopes that mimic the B lymphocyte-specific lineage markers CD20, CD22, CD37, and CD268 (BAFF receptor). EO2463 also includes the helper peptide (CD4+ epitope) universal cancer peptide 2 (UCP2). The unique ability of EO2463 immunotherapy to selectively target multiple B cell markers enables the destruction of malignant B lymphocytes. By ensuring broad target coverage across malignant B cells, this novel approach aims to simultaneously improve safety and maximize efficacy, reducing the tumor cells’ capacity to develop immune-resistance mechanisms such as antigen escape.

SIDNEY is an ongoing 12-month open label Phase 1/2 study that aims to assess safety, tolerability, immunogenicity, and preliminary efficacy of EO2463 monotherapy and combination therapy in up to about 55 patients with follicular lymphoma and marginal zone lymphoma including divided into three cohorts: newly diagnosed patients eligible to watch-and-wait (monotherapy); newly diagnosed patients in need of therapy / first line (combo with rituximab); patients with relapsed/refractory disease (combo with R2). In addition to safety, survival, response rates and other measures of efficacy are being collected.

OncoMimics were inspired by the microbial origin of certain autoimmune diseases. The Company uses AI and machine learning to identify microbial proteins that closely mimic the structure, effect or actions of specific cancer antigens (as well as hormones or cytokines). Memory T cells against microbial antigen are created during early development, sometimes leading to autoimmune disorders. In the case of OncoMimics, however, this means that the immune system can mount a rapid, robust and durable immune response that is highly targeted and specific for the OncoMimics and the cancer antigens they closely resemble.

This is possible because, unlike cancer antigens, OncoMimics bypass the biological process, known as thymic deletion, that prevents the immune system from mounting an attack against the "self" proteins (e.g. antigen) on tumor and blood cancer cells. Once activated, the immune system attacks with high specificity and potency the cancer antigens targeted by the OncoMimics, killing the cancer cells that carry them. OncoMimics are synthetic peptides that are easy to manufacture, store, distribute and administer as an off-the-shelf subcutaneous injection. In clinical testing to date they have been shown to be extremely well tolerated, especially compared to other potent immunotherapies.

On June 12, 2025 Johnson & Johnson (NYSE: JNJ) reported new Phase 1b data showing encouraging antileukemic activity and a promising safety profile for bleximenib (JNJ-75276617) in combination with venetoclax and azacitidine (VEN + AZA) for the treatment of acute myeloid leukemia (AML) harboring KMT2A gene rearrangements (KMT2Ar) or NPM1 gene mutations (NPM1m) (Press release, Johnson & Johnson, JUN 12, 2025, View Source;johnsons-bleximenib-demonstrate-promising-antileukemic-activity-in-combination-with-venetoclax-and-azacitidine-for-acute-myeloid-leukemia-302480190.html [SID1234653858]). The study evaluated patients with newly diagnosed, intensive chemo-ineligible AML and relapsed or refractory AML.1 The results were featured in an oral presentation at the 2025 European Hematology Association (EHA) (Free EHA Whitepaper) Congress (S137).

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Even though AML is the most common type of acute leukemia in adults, it has the lowest survival rate and is associated with poor patient outcomes, despite treatment advances to date – especially for patients with KMT2Ar and NPM1m.

"AML encompasses a spectrum of genetically diverse cancers affecting the bone marrow and blood, which progress rapidly, making it an extremely challenging cancer to treat," said Andrew M. Wei*, MBBS, PhD, Peter MacCallum Cancer Centre, Royal Melbourne Hospital, Walter and Eliza Hall Institute of Medical Research and University of Melbourne, Australia. "These data highlight the potential of this targeted therapy in combination with VEN + AZA for patients with newly diagnosed AML who are ineligible for intensive chemotherapy or with disease that has relapsed after prior therapy."

The Phase 1b dose-finding study (NCT05453903) evaluated 125 patients with relapsed or refractory AML and newly diagnosed, intensive chemo-ineligible AML who harbored KMT2Ar (n=52) or NPM1m (n=73). Bleximenib in combination with VEN + AZA was evaluated across multiple dose levels without step-up dosing. Of the 85 relapsed or refractory patients, 36 percent received one, 42 percent received two and 12 percent received three lines of prior treatment; 47 percent had previously been treated with venetoclax.1

The bleximenib data at 100 mg twice a day in combination with VEN + AZA showed higher efficacy and a similar safety profile in comparison to other dose levels. At the recommended Phase 2 dose (RP2D), patients with relapsed or refractory AML achieved an overall response rate (ORR) of 82 percent and a composite complete response (cCR) rate of 59 percent.1 The newly diagnosed, intensive chemo-ineligible patient population showed an ORR of 90 percent and a cCR rate of 75 percent.1

Safety analysis of the study population showed a profile comparable among dose groups, genetic subtypes and disease settings. At the RP2D in combination with VEN+AZA, differentiation syndrome events were reported in two of 49 patients (4 percent). Bleximenib safety data continued to support a lack of QTc prolongation signal, with no events of Grade 3 or higher and only three Grade 1 events (6 percent) at the RP2D.1 The most common all-grade treatment-emergent adverse events (TEAEs) were nausea (65 percent), thrombocytopenia (61 percent), neutropenia (59 percent) and anemia (49 percent).1 The most common Grade 3 or higher TEAEs were thrombocytopenia (59 percent), neutropenia (59 percent), and anemia (49 percent).1

"Building on our heritage of leadership and innovation in hematologic malignancies, we are committed to delivering transformative treatment options that address the significant unmet needs of patients with acute myeloid leukemia," said Jeffrey Infante, M.D., Vice President of Early Clinical Development and Translational Research at Johnson & Johnson Innovative Medicine. "We continue to explore the potential of this compound as a monotherapy and in combination with standard of care regimens in additional Phase 2 and 3 studies, which are currently enrolling patients."

About Phase 1b Bleximenib Combination Dosing Study

This bleximenib combination trial (NCT05453903) is an ongoing Phase 1b open-label, non-randomized sequential assignment multicenter study to determine the recommended Phase 2 dose (RP2D) and further evaluate the safety and tolerability of bleximenib in combination with VEN + AZA in approximately 200 patients with either newly diagnosed or relapsed/refractory acute myeloid leukemia harboring KMT2A or NPM1 alterations.

Patients received VEN + AZA in combination with oral bleximenib twice daily at 15–150 mg (relapsed/refractory) or 30–100 mg (newly diagnosed) over a 28-day cycle and during count recovery. Bleximenib was started on day 4 without the need for step-up dosing. Primary outcome measures included adverse events and dose-limiting toxicity. Secondary efficacy measures included depletion of leukemic blasts, percentage of patients achieving complete response (CR), and percentage of patients who achieve overall response.

About Bleximenib (JNJ-75276617)

Bleximenib is an investigational oral menin inhibitor being evaluated for the treatment of patients with newly diagnosed and relapsed or refractory AML. It targets a key oncogenic interaction between menin and KMT2A fusion proteins, disrupting a pathway that drives leukemic cell growth in patients with KMT2Ar or NPM1m mutations.

It is currently being investigated in Phase 1, 2, and 3 trials, both as a monotherapy and in combination with AML-directed therapies to further explore its potential in both relapsed or refractory and newly diagnosed AML populations.

About Acute Myeloid Leukemia (AML)

Acute myeloid leukemia is an aggressive, fast-growing blood cancer that originates in the bone marrow and is marked by the uncontrolled proliferation of immature white blood cells known as myeloblasts.2, 5 These malignant cells crowd out healthy blood-forming cells, leading to complications such as anemia, infections and bleeding.6 Acute myeloid leukemia progresses rapidly, often requiring immediate treatment after diagnosis.5 It is the most common type of acute leukemia in adults, with a median age of diagnosis around 70 years.2

Despite treatment advances, acute myeloid leukemia remains associated with poor patient outcomes, particularly in older adults or those with high-risk genetic profiles.7 The five-year survival rate remains the lowest among leukemias, with outcomes especially poor in patients with KMT2Ar or NPM1m where relapse/refractory disease survival can be as short as 2 to 3 months after a second relapse – highlighting a significant unmet medical need.

On June 12, 2025 GlycoNex, Inc. (4168, hereinafter referred to as GNX), a clinical-stage biotechnology company specializing in glycan-directed cancer immunotherapies, reported that its first-in-class antibody-drug conjugate (ADC), GNX1021, has demonstrated superior efficacy in preclinical studies, including potent tumor growth inhibition in gastric cancer animal models (Press release, GlycoNex, JUN 12, 2025, View Source [SID1234653859]). GNX1021 may offer a novel treatment option for gastric cancer patients who are ineligible for HER2 or CLDN18-targeted therapies, and its broad activity suggests therapeutic potential across multiple solid tumor types.

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In safety assessments, GNX1021 has completed a pilot toxicology study in cynomolgus monkeys, demonstrating a safety profile comparable to that of currently approved ADCs. GlycoNex plans to initiate GLP-compliant toxicology studies by year-end and aims to submit clinical trial applications in Taiwan and Japan in the first quarter of 2026, with first-in-human Phase I trials anticipated to commence in the second quarter.

"With our GNX1021 program advancing rapidly and backed by our deep expertise in antibody-drug development, we are actively pursuing early-stage licensing and strategic partnerships," said Dr. Mei-Chun Yang, CEO of GlycoNex. "These partnerships will provide upfront funding, mitigate development risk, and help accelerate our path to the clinic."

Recent landmark deals in the ADC field highlight the strong licensing potential of early-stage assets, with total deal sizes reaching several billion dollars. As the global ADC market exceeded USD 160 billion in 2023, GlycoNex remains committed to seizing this significant market opportunity, driving innovation in oncology, and addressing unmet medical needs worldwide. GlycoNex will actively engage in strategic collaboration discussions with international pharmaceutical partners at the BIO International Convention in June 2025.

On June 12, 2025 Galapagos NV (Euronext & NASDAQ: GLPG) reported that it will present new data from the ongoing ATALANTA-1 Phase 1/2 study of its investigational CD19 CAR T-cell therapy, GLPG5101, in an oral presentation at the 30th European Hematology Association (EHA) (Free EHA Whitepaper) Congress (Press release, Galapagos, JUN 12, 2025, View Source [SID1234653875]). These data demonstrate encouraging safety outcomes, including low rates of high-grade toxicities, in R/R NHL. Additionally, with a rapid vein-to-vein time enabled by Galapagos’ decentralized manufacturing platform, 95% of patients treated in the study received fresh, non-cryopreserved GLPG5101, without the need for cytotoxic bridging therapy.

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"We are excited to share new promising safety and manufacturing data for GLPG5101 across multiple R/R NHL subtypes, reinforcing the potential of our novel rapid delivery approach," said Omotayo Fasan, M.D., Clinical Development Program Head at Galapagos. "By initiating lymphodepletion immediately after cell collection, we are able to infuse fresh product as soon as it becomes available, reducing patient attrition and potentially expanding access to CAR-T therapy. We observed a low 5% attrition rate, compared to rates of up to 30% reported in some clinical trials and real-world settings, and observed a manageable safety profile. These promising results suggest that rapid delivery of fresh, stem-like early memory cell therapies may offer meaningful clinical benefits for patients with R/R NHL."

"Decentralized cell therapy manufacturing is changing how we think about CAR-T eligibility. By enabling shorter vein-to-vein times and the use of fresh, early memory phenotype cells, this approach may allow for the inclusion of patients who would otherwise not be able to receive CAR-T therapy due to historically long manufacturing timelines," said Pim Mutsaers, M.D., Associate Professor, Department of Hematology, Erasmus MC Cancer Institute.

The new ATALANTA-1 data are summarized below:
The oral presentation at EHA (Free EHA Whitepaper) features new safety and longer follow-up data for GLPG5101 in 64 patients with R/R large B-cell lymphoma (DLBCL, n=17), mantle cell lymphoma (MCL, n=13), follicular lymphoma (FL, n=29), and marginal zone lymphoma (MZL, n=5) from the ongoing ATALANTA-1 Phase 1/2 study (data cut-off: October 14, 2024). The presentation also demonstrates the feasibility of Galapagos’ decentralized manufacturing platform to deliver fresh, stem-like early memory cell therapy with a median vein-to-vein time of seven days, robust in vivo expansion, and durable persistence.

As of 14 October 2024, 64 patients underwent leukapheresis, of whom 63 received lymphodepleting chemotherapy and 61 (95%) received an infusion of GLPG5101. Of those 61 patients:
95% (58 patients) received a fresh product
89% (54 patients) received it within 7 days post-leukapheresis
7% (4 patients) received it within 8-21 days
5% (3 patients) received a cryopreserved product
None of the patients who received a fresh product required cytotoxic bridging therapy.
GLPG5101 showed an encouraging safety profile in the context of robust CAR T-cell peak expansion and durable persistence, with the majority of Grade ≥ 3 treatment emergent adverse events being hematological. Cases of CRS and ICANS were few and predominantly low-grade with only a single Grade 3 report of each. Dose-limiting toxicities were found in 8% of patients (5/61).
Durable CAR T-cell persistence was observed up to 21 months across tumor types, phases, and dose levels.
Phase 1
(n=24) Phase 2
(n=37) All patients
(n=61)
CRS, n (%) 11 (45.8) 15 (40.5) 26 (42.6)
Grade 1, n (%) 5 (20.8) 8 (21.6) 13 (21.3)
Grade 2, n (%) 5 (20.8) 7 (18.9) 12 (19.7)
Grade 3, n (%) 1 (4.2) 0 1 (1.6)
Time to onset, median (range), days 7.5 (2–20) 7.0 (1–11) 7.0 (1–20)
Duration, median (range), days 3.0 (1–17) 3.0 (1–9) 3.0 (1–17)
CRS toxicity management, n (%)
Dexamethasone 4 (16.7) 7 (18.9) 11 (18.0)
Tocilizumab 6 (25.0) 9 (24.3) 15 (24.6)
Methylprednisolone 1 (4.2) - 1 (1.6)
Vasopressin 1 (4.2) - 1 (1.6)
ICANS, n (%) 8 (33.3) 4 (10.8) 12 (19.7)
Grade 1 8 (33.3) 3 (8.1) 11 (18.0)
Grade 2 0 0 0
Grade 3 0 1 (2.7) 1 (1.6)
Time to onset, median (range), days 14.0 (3–30) 8.5 (2–12) 11.5 (2–30)
Duration, median (range), days 2.5 (1–47) 1.5 (1–3) 2.0 (1–47)
ICANS toxicity management, n (%)
Dexamethasone (ICANS) 2 (8.3) 4 (10.8) 6 (9.8)
Tocilizumab (ICANS) 1 (4.2) 2 (5.4) 3 (4.9)
Infections, Grade ≥3, n (%) 2 (8.3) 1 (2.7) 3 (4.9)
Hemophagocytic lymphohistiocytosis, Grade ≥3, n (%) 2 (8.3) 0 2 (3.3)
Prolonged cytopenias,a Grade ≥3, n/n available (%)
30 days after infusion 8/21 (38.1) 11/37 (29.7) 19/58 (32.8)
60 days after infusion 5/21 (23.8) 9/33 (27.3) 14/54 (25.9)
90 days after infusion 4/20 (20.0) 8/30 (26.7) 12/50 (24.0)
a Includes all events related to neutropenia, thrombocytopenia, anemia, and lymphopenia.
CRS, cytokine release syndrome; ICANS, immune effector cell-associated neurotoxicity syndrome.
Table 1: Adverse events of special interest

About GLPG5101 and ATALANTA-1 (EudraCT 2021-003272-13; NCT 06561425)
GLPG5101 is a second generation anti-CD19/4-1BB CAR-T product candidate, administered as a single fixed intravenous dose. The safety, efficacy and feasibility of decentralized manufactured GLPG5101 are currently being evaluated in the ATALANTA-1 Phase 1/2 study in eight1 hematological malignancies with high unmet need. The primary objective of the Phase 1 part of the study is to evaluate safety and to determine the recommended dose for the Phase 2 part of the study. Secondary objectives include assessment of efficacy and feasibility of decentralized manufacturing of GLPG5101. The dose levels that were evaluated in Phase 1 are 50×106 (DL1), 110×106 (DL2) and 250×106 (DL3) CAR+ viable T-cells. The primary objective of the Phase 2 part of the study is to evaluate the Objective Response Rate (ORR) while the secondary objectives include Complete Response Rate (CRR), duration of response, progression free survival, overall survival, safety, pharmacokinetic profile, and the feasibility of decentralized manufacturing. Each enrolled patient will be followed for 24 months. The ATALANTA-1 study is currently enrolling patients in the U.S. and Europe.

On June 12, 2025 Kura Oncology, Inc. (Nasdaq: KURA, "Kura") and Kyowa Kirin Co., Ltd. (TSE: 4151, "Kyowa Kirin") reported positive updated clinical data from KOMET-007, a Phase 1a/1b trial of ziftomenib, a highly selective oral investigational menin inhibitor, in combination with standards of care in patients with newly diagnosed NPM1-mutant (NPM1-m) and KMT2A-rearranged (KMT2A-r) acute myeloid leukemia (AML) (Press release, Kura Oncology, JUN 12, 2025, View Source [SID1234653844]). The data for the combination with cytarabine/daunorubicin (7+3) were presented as an oral presentation at the European Hematology Association (EHA) (Free EHA Whitepaper) 2025 Congress (EHA2025) being held in Milan, Italy from June 12-15, 2025.

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"The findings presented at EHA (Free EHA Whitepaper)2025 underscore the potential of ziftomenib in combination with 7+3 as an early intervention in the frontline setting of AML and could offer a meaningful opportunity to improve patient outcomes," said Harry Erba, M.D., Ph.D., Director of the Leukemia Program at the Duke Cancer Institute. "The high rates of complete remission and MRD negativity across the 7+3 cohorts are particularly encouraging. The continued rapid enrollment in the Phase 1b portion of this study underscores the urgency and enthusiasm for further evaluating this combination approach."

"We remain very encouraged by the updated clinical activity, safety and tolerability data from the KOMET-007 study evaluating ziftomenib with 7+3 in newly diagnosed AML patients with NPM1 mutations or KMT2A rearrangements," said Mollie Leoni, M.D., Chief Medical Officer of Kura Oncology. "These updated data reinforce the combination potential of ziftomenib in the frontline setting, strengthening our confidence in its ability to provide a valuable treatment option for a significant portion of the AML population. We and our partners at Kyowa Kirin are working in earnest to prepare for the KOMET-017-IC and NIC pivotal Phase 3 studies, which will enable us to test ziftomenib-based combinations and their potential, if approved, to transform care for AML patients worldwide."

In the ongoing study, ziftomenib dosed once daily at 600 mg in combination with 7+3 continued to demonstrate robust and evolving clinical activity in patients with newly diagnosed AML. Among 71 response-evaluable patients, 92% (65/71) achieved a composite complete remission (CRc) (93% for NPM1-m, 89% for KMT2A-r patients) and 80% (57/71) achieved a complete remission (CR) (84% for NPM1-m, 74% for KMT2A-r patients) at the time of data cutoff. A rate of CR minimal residual disease (CR-MRD) negativity of 71% for NPM1-m with a median time to MRD negativity of 4.7 weeks and a rate of CR-MRD negativity of 88% for KMT2A-r patients with a median time to MRD negativity of 4.4 weeks were observed. Ziftomenib did not delay time to neutrophil and platelet count recovery, which was comparable to intensive chemotherapy regimens.

Median follow-up times for the two populations were 24.9 weeks (range 4.3-47.1) in NPM1-m patients and 15.7 weeks (range 1.1-40.3) in KMT2A-r patients. Among response-evaluable NPM1-m patients, neither a median duration of CR nor a median overall survival (OS) had been reached. Among response-evaluable KMT2A-r patients, a median duration of CR was determined to be 25.6 weeks (95% CI, range 8.3-NE), and a median OS had not been reached. Notably, 96% (47/49) of NPM1-m patients and 88% (29/33) of KMT2A-r patients remained alive and on study.

The safety population included 82 newly diagnosed adult patients with NPM1-m or KMT2A-r AML from the pooled Phase 1a/1b portions of the trial at the 600 mg QD dose of ziftomenib. The safety profile observed with ziftomenib was consistent with previously reported data. Ziftomenib-related adverse events (TRAEs) of ≥ Grade 3 (Gr3), which occurred in more than 10% of patients were febrile neutropenia (15%), decreased platelet count (15%), anemia (11%) and decreased neutrophil count (11%). One case of differentiation syndrome (KMT2A-r, Gr3) was successfully managed by protocol-specified mitigation strategies. Two cases of investigator-assessed QTc prolongation (both KMT2A-r, Gr3) were reported; both patients were on other medications (posaconazole and/or piperacillin/tazobactam), which have been identified as potentially causing QT prolongation at the time of QT assessment. No dose-limiting toxicities, drug-drug interactions, clinically meaningful ziftomenib-associated QTc prolongation or additive myelosuppression were observed.

"Despite the availability of approved therapies for AML, up to 70% of patients who initially achieve a complete response relapse within three years – highlighting a substantial unmet need," said Takeyoshi Yamashita, Ph.D., Executive Vice President and Chief Medical Officer of Kyowa Kirin. "The data presented at EHA (Free EHA Whitepaper)2025 suggest a favorable safety, tolerability, and efficacy profile for ziftomenib. We are encouraged by its potential as a future first-line treatment option and are committed to advancing the KOMET-017 Phase 3 trial, expected to begin later this year, to further evaluate its value in AML care."

The EHA (Free EHA Whitepaper)2025 oral presentation highlighting ziftomenib combined with 7+3 in newly diagnosed (1L) NPM1-m and KMT2A-r AML, and an encore presentation of results from the KOMET-001 registrational trial of ziftomenib in relapsed/refractory (R/R) NPM1-m AML (also presented during EHA (Free EHA Whitepaper)2025) are available in the Posters and Presentations section of the Kura website. The KOMET-017 protocol consists of 2 separate Phase 3 studies, which will investigate the benefits and risks of adding ziftomenib to standards of care treatments in patients newly diagnosed NPM1-m or KMT2A-r AML and which is registered at www.clinicaltrials.gov as NCT07007312.

Virtual Investor Event

Kura will host a virtual investor event featuring company management and investigators from the KOMET-007 trial of ziftomenib in combination with 7+3 in patients with NPM1-m and KMT2A-r AML at 4:30pm ET / 1:30pm PT on Wednesday, June 18, 2025. Those who would like to participate may access the live webcast here, or register in advance for the teleconference here. The event can also be accessed on the Investors section of Kura’s website at www.kuraoncology.com. An archived replay will be available shortly after the conclusion of the live event.