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[8-K] Kura Oncology, Inc. Reports Material Event

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
8-K
Rhea-AI Filing Summary

Kura Oncology (KURA) filed an 8-K announcing updated Phase 1a/1b results for ziftomenib, its oral menin inhibitor, from the KOMET-007 study in newly diagnosed AML patients with NPM1-m or KMT2A-r mutations. The 600 mg QD dose given with standard 7+3 chemotherapy produced robust composite complete remission (CRc) of 92 % (65/71) and complete remission (CR) of 80 % (57/71), with similar efficacy across both genetic sub-groups (CRc: 93 % NPM1-m, 89 % KMT2A-r). MRD-negative CR rates reached 71 % for NPM1-m and 88 % for KMT2A-r, achieved in roughly 4�5 weeks.

Durability signals are emerging: median CR duration and overall survival have not yet been reached in NPM1-m patients after a median 24.9-week follow-up; KMT2A-r patients show a median CR duration of 25.6 weeks with OS not reached. Survival remains high, with 96 % (NPM1-m) and 88 % (KMT2A-r) alive and on study.

The pooled safety set (n = 82) showed a profile consistent with prior data. ≥Grade 3 treatment-related adverse events >10 % included febrile neutropenia (15 %), thrombocytopenia (15 %), anemia (11 %) and neutropenia (11 %). Importantly, there were no dose-limiting toxicities, meaningful QTc prolongation, drug–drug interactions or additive myelosuppression; a single grade-3 differentiation syndrome case was successfully managed.

Kura plans to initiate the KOMET-017 randomized Phase 3 trials (intensive and non-intensive chemo backbones) in 2H 2025. The company also hosted a virtual investor event on 18 Jun 2025 (Exhibit 99.1) to discuss the data.

Kura Oncology (KURA) ha presentato un modulo 8-K annunciando i risultati aggiornati della Fase 1a/1b per ziftomenib, il suo inibitore orale di menina, dallo studio KOMET-007 su pazienti con AML appena diagnosticata con mutazioni NPM1-m o KMT2A-r. La dose di 600 mg QD somministrata insieme alla chemioterapia standard 7+3 ha prodotto un robusto tasso di remissione completa composita (CRc) del 92% (65/71) e una remissione completa (CR) dell�80% (57/71), con efficacia simile in entrambi i sottogruppi genetici (CRc: 93% NPM1-m, 89% KMT2A-r). I tassi di CR MRD-negativi hanno raggiunto il 71% per NPM1-m e l�88% per KMT2A-r, ottenuti in circa 4-5 settimane.

Emergono segnali di durata: la durata mediana della CR e la sopravvivenza globale non sono ancora state raggiunte nei pazienti NPM1-m dopo un follow-up mediano di 24,9 settimane; i pazienti KMT2A-r mostrano una durata mediana della CR di 25,6 settimane con OS non raggiunta. La sopravvivenza resta elevata, con il 96% (NPM1-m) e l�88% (KMT2A-r) ancora vivi e in studio.

Il set di sicurezza combinato (n = 82) ha mostrato un profilo coerente con i dati precedenti. Gli eventi avversi correlati al trattamento ≥Grado 3 >10% includevano neutropenia febbrile (15%), trombocitopenia (15%), anemia (11%) e neutropenia (11%). Importante, non sono state rilevate tossicità dose-limitanti, prolungamenti significativi del QTc, interazioni farmacologiche o mielosoppressione additiva; un singolo caso di sindrome da differenziazione di grado 3 è stato gestito con successo.

Kura prevede di avviare i trial randomizzati di Fase 3 KOMET-017 (con chemioterapia intensiva e non intensiva) nella seconda metà del 2025. L’azienda ha inoltre organizzato un evento virtuale per investitori il 18 giugno 2025 (Esibizione 99.1) per discutere i dati.

Kura Oncology (KURA) presentó un formulario 8-K anunciando resultados actualizados de la Fase 1a/1b para ziftomenib, su inhibidor oral de menina, del estudio KOMET-007 en pacientes con LMA recién diagnosticada con mutaciones NPM1-m o KMT2A-r. La dosis de 600 mg QD administrada junto con la quimioterapia estándar 7+3 produjo una robusta remisión completa compuesta (CRc) del 92% (65/71) y una remisión completa (CR) del 80% (57/71), con eficacia similar en ambos subgrupos genéticos (CRc: 93% NPM1-m, 89% KMT2A-r). Las tasas de CR negativas para MRD alcanzaron el 71% para NPM1-m y el 88% para KMT2A-r, logradas en aproximadamente 4-5 semanas.

Surgen señales de durabilidad: la duración media de la CR y la supervivencia global aún no se han alcanzado en pacientes NPM1-m tras un seguimiento medio de 24,9 semanas; los pacientes KMT2A-r muestran una duración media de CR de 25,6 semanas con supervivencia global no alcanzada. La supervivencia sigue siendo alta, con un 96% (NPM1-m) y un 88% (KMT2A-r) vivos y en estudio.

El conjunto combinado de seguridad (n = 82) mostró un perfil consistente con datos previos. Eventos adversos relacionados con el tratamiento ≥Grado 3 >10% incluyeron neutropenia febril (15%), trombocitopenia (15%), anemia (11%) y neutropenia (11%). Importante, no se observaron toxicidades limitantes de dosis, prolongación significativa del QTc, interacciones medicamentosas ni mielosupresión aditiva; un único caso de síndrome de diferenciación grado 3 fue manejado con éxito.

Kura planea iniciar los ensayos aleatorizados de Fase 3 KOMET-017 (con quimioterapia intensiva y no intensiva) en la segunda mitad de 2025. La compañía también organizó un evento virtual para inversores el 18 de junio de 2025 (Exhibición 99.1) para discutir los datos.

Kura Oncology (KURA)� 신규 진단� NPM1-m 또는 KMT2A-r 돌연변이를 가� AML 환자� 대상으� � KOMET-007 연구에서 경구� menin 억제제인 ziftomenib� 1a/1b� 업데이트 결과� 발표하는 8-K� 제출했습니다. 표준 7+3 화학요법� 함께 투여� 600mg QD 용량은 강력� 복합 완전 관해율(CRc) 92% (65/71)완전 관�(CR) 80% (57/71)� 나타냈으�, � 유전 하위 그룹 모두에서 유사� 효능� 보였습니�(CRc: NPM1-m 93%, KMT2A-r 89%). MRD 음성 CR 비율은 NPM1-m에서 71%, KMT2A-r에서 88%� 도달했으�, � 4~5� 내에 달성되었습니�.

지속성 신호가 나타나고 있습니다: 중간 CR 지� 기간 � 전체 생존율은 NPM1-m 환자에서 중앙� 24.9� 추적 관� � 아직 도달하지 않았습니�; KMT2A-r 환자� CR 중간 지� 기간 25.6주를 보이� 전체 생존율은 도달하지 않았습니�. 생존율은 높게 유지되어 NPM1-m 96%, KMT2A-r 88%가 여전� 연구� 참여 중입니다.

통합 안전� 데이� 세트(n = 82)� 이전 데이터와 일치하는 프로파일� 보였습니�. 3등급 이상 치료 관� 이상반응 � 10% 초과� 발열� 호중� 감소�(15%), 혈소� 감소�(15%), 빈혈(11%), 호중� 감소�(11%)� 포함됩니�. 중요� 점은 용량 제한 독성, 의미 있는 QTc 연장, 약물 상호작용 또는 추가 골수억제가 없었�� 것입니다; 단일 3등급 분화 증후� 사례� 성공적으� 관리되었습니다.

ܰ� 2025� 하반기에 KOMET-017 무작� 3� 시험(집중 � 비집� 화학요법 기반)� 시작� 계획입니�. 또한 2025� 6� 18일에 가� 투자� 행사� 개최하여(전시 99.1) 데이터를 논의했습니다.

Kura Oncology (KURA) a déposé un formulaire 8-K annonçant les résultats mis à jour de la Phase 1a/1b pour ziftomenib, son inhibiteur oral de la menine, issus de l'étude KOMET-007 chez des patients atteints de LMA nouvellement diagnostiqués avec des mutations NPM1-m ou KMT2A-r. La dose quotidienne de 600 mg administrée avec la chimiothérapie standard 7+3 a produit un taux robuste de rémission complète composite (CRc) de 92 % (65/71) et une réponse complète (CR) de 80 % (57/71), avec une efficacité similaire dans les deux sous-groupes génétiques (CRc : 93 % NPM1-m, 89 % KMT2A-r). Les taux de CR négatifs pour la MRD ont atteint 71 % pour NPM1-m et 88 % pour KMT2A-r, obtenus en environ 4 à 5 semaines.

Des signaux de durabilité émergent : la durée médiane de la CR et la survie globale n'ont pas encore été atteintes chez les patients NPM1-m après un suivi médian de 24,9 semaines ; les patients KMT2A-r présentent une durée médiane de CR de 25,6 semaines avec une survie globale non atteinte. La survie reste élevée, avec 96 % (NPM1-m) et 88 % (KMT2A-r) vivants et toujours dans l'étude.

Le groupe de sécurité combiné (n = 82) a montré un profil cohérent avec les données antérieures. Les événements indésirables liés au traitement de grade �3 >10 % comprenaient une neutropénie fébrile (15 %), une thrombocytopénie (15 %), une anémie (11 %) et une neutropénie (11 %). Il est important de noter qu'il n'y a eu aucune toxicité limitante de dose, allongement significatif du QTc, interaction médicamenteuse ou myélosuppression additive ; un seul cas de syndrome de différenciation de grade 3 a été géré avec succès.

Kura prévoit de lancer les essais randomisés de Phase 3 KOMET-017 (avec chimiothérapie intensive et non intensive) au second semestre 2025. La société a également organisé un événement virtuel pour les investisseurs le 18 juin 2025 (Exhibit 99.1) pour discuter des données.

Kura Oncology (KURA) hat eine 8-K eingereicht, in der aktualisierte Phase 1a/1b-Ergebnisse für ziftomenib, seinen oralen Menin-Inhibitor, aus der KOMET-007-Studie bei neu diagnostizierten AML-Patienten mit NPM1-m- oder KMT2A-r-Mutationen bekanntgegeben werden. Die 600 mg QD-Dosis, verabreicht zusammen mit der Standard-7+3-Chemotherapie, erzielte eine robuste zusammengesetzte komplette Remission (CRc) von 92 % (65/71) und eine komplette Remission (CR) von 80 % (57/71), mit ähnlicher Wirksamkeit in beiden genetischen Untergruppen (CRc: 93 % NPM1-m, 89 % KMT2A-r). MRD-negative CR-Raten erreichten 71 % für NPM1-m und 88 % für KMT2A-r, erreicht in etwa 4�5 Wochen.

Signale zur Dauerhaftigkeit zeichnen sich ab: Die mediane CR-Dauer und das Gesamtüberleben wurden bei NPM1-m-Patienten nach einer medianen Nachbeobachtungszeit von 24,9 Wochen noch nicht erreicht; KMT2A-r-Patienten zeigen eine mediane CR-Dauer von 25,6 Wochen, das OS wurde nicht erreicht. Die Überlebensrate bleibt hoch, mit 96 % (NPM1-m) und 88 % (KMT2A-r), die noch leben und in der Studie sind.

Der gepoolte Sicherheitsdatensatz (n = 82) zeigte ein Profil, das mit früheren Daten übereinstimmt. ≥Grad 3 behandlungsbedingte unerwünschte Ereignisse >10 % umfassten febrile Neutropenie (15 %), Thrombozytopenie (15 %), Anämie (11 %) und Neutropenie (11 %). Wichtig ist, dass keine dosislimitierenden Toxizitäten, keine bedeutsame QTc-Verlängerung, keine Arzneimittelwechselwirkungen oder additive Myelosuppression auftraten; ein einzelner Fall eines Grad-3-Differenzierungssyndroms wurde erfolgreich behandelt.

Kura plant, die KOMET-017 randomisierten Phase-3-Studien (intensive und nicht-intensive Chemo-Backbones) in der zweiten Hälfte 2025 zu starten. Das Unternehmen veranstaltete außerdem am 18. Juni 2025 ein virtuelles Investoren-Event (Anlage 99.1), um die Daten zu besprechen.

Positive
  • 92 % composite complete remission across 71 evaluable patients, significantly higher than historical 7+3 benchmarks.
  • High MRD-negative CR rates (71�88 %), achieved rapidly (�4�5 weeks), indicating depth of response.
  • No dose-limiting toxicities or clinically meaningful QTc prolongation, supporting a favorable safety profile.
  • Planned Phase 3 KOMET-017 trials in 2H 2025 provide a clear clinical and regulatory pathway.
  • Survival not reached in both genetic sub-groups, with 96 % and 88 % of patients still alive on study.
Negative
  • Efficacy and safety data are from an early-stage, single-arm Phase 1a/1b study, limiting statistical power.
  • ≥Grade 3 treatment-related cytopenias (febrile neutropenia and thrombocytopenia at 15 %) highlight ongoing hematologic toxicity risk.
  • The filing notes standard forward-looking statement risks, including potential failure in later-stage trials and regulatory uncertainty.

Insights

TL;DR: Strong Phase 1 efficacy (92 % CRc) and clean safety support Kura's move to Phase 3, materially de-risking ziftomenib.

The 92 % CRc rate far exceeds historical benchmarks for frontline AML induction (~60-70 %), providing compelling proof-of-concept. Absence of dose-limiting toxicities diminishes regulatory risk, while early MRD-negative conversions suggest durable responses. With survival medians not yet reached, the dataset positions ziftomenib as a potential best-in-class menin inhibitor. Initiating KOMET-017 in 2H 25 creates a clear catalyst path; successful read-outs could open a multi-billion-dollar AML market segment. Risks remain: results stem from an open-label Phase 1 cohort (n = 82) and include Grade 3 cytopenias typical for intensive chemo. Still, the magnitude of response and safety profile are materially positive for valuation.

TL;DR: Data show high remission and MRD negativity without added myelosuppression—clinically meaningful for AML practice.

The combination’s lack of delayed neutrophil/platelet recovery is critical, as additional cytopenias often limit therapy in AML. High MRD-negative rates (71�88 %) achieved within 5 weeks point to rapid disease clearance, a predictor of long-term outcomes. Low incidence of differentiation syndrome and manageable QTc events underscore tolerability. While Phase 1 numbers are modest, these outcomes justify Phase 3 evaluation and could shift induction standards if reproduced.

Kura Oncology (KURA) ha presentato un modulo 8-K annunciando i risultati aggiornati della Fase 1a/1b per ziftomenib, il suo inibitore orale di menina, dallo studio KOMET-007 su pazienti con AML appena diagnosticata con mutazioni NPM1-m o KMT2A-r. La dose di 600 mg QD somministrata insieme alla chemioterapia standard 7+3 ha prodotto un robusto tasso di remissione completa composita (CRc) del 92% (65/71) e una remissione completa (CR) dell�80% (57/71), con efficacia simile in entrambi i sottogruppi genetici (CRc: 93% NPM1-m, 89% KMT2A-r). I tassi di CR MRD-negativi hanno raggiunto il 71% per NPM1-m e l�88% per KMT2A-r, ottenuti in circa 4-5 settimane.

Emergono segnali di durata: la durata mediana della CR e la sopravvivenza globale non sono ancora state raggiunte nei pazienti NPM1-m dopo un follow-up mediano di 24,9 settimane; i pazienti KMT2A-r mostrano una durata mediana della CR di 25,6 settimane con OS non raggiunta. La sopravvivenza resta elevata, con il 96% (NPM1-m) e l�88% (KMT2A-r) ancora vivi e in studio.

Il set di sicurezza combinato (n = 82) ha mostrato un profilo coerente con i dati precedenti. Gli eventi avversi correlati al trattamento ≥Grado 3 >10% includevano neutropenia febbrile (15%), trombocitopenia (15%), anemia (11%) e neutropenia (11%). Importante, non sono state rilevate tossicità dose-limitanti, prolungamenti significativi del QTc, interazioni farmacologiche o mielosoppressione additiva; un singolo caso di sindrome da differenziazione di grado 3 è stato gestito con successo.

Kura prevede di avviare i trial randomizzati di Fase 3 KOMET-017 (con chemioterapia intensiva e non intensiva) nella seconda metà del 2025. L’azienda ha inoltre organizzato un evento virtuale per investitori il 18 giugno 2025 (Esibizione 99.1) per discutere i dati.

Kura Oncology (KURA) presentó un formulario 8-K anunciando resultados actualizados de la Fase 1a/1b para ziftomenib, su inhibidor oral de menina, del estudio KOMET-007 en pacientes con LMA recién diagnosticada con mutaciones NPM1-m o KMT2A-r. La dosis de 600 mg QD administrada junto con la quimioterapia estándar 7+3 produjo una robusta remisión completa compuesta (CRc) del 92% (65/71) y una remisión completa (CR) del 80% (57/71), con eficacia similar en ambos subgrupos genéticos (CRc: 93% NPM1-m, 89% KMT2A-r). Las tasas de CR negativas para MRD alcanzaron el 71% para NPM1-m y el 88% para KMT2A-r, logradas en aproximadamente 4-5 semanas.

Surgen señales de durabilidad: la duración media de la CR y la supervivencia global aún no se han alcanzado en pacientes NPM1-m tras un seguimiento medio de 24,9 semanas; los pacientes KMT2A-r muestran una duración media de CR de 25,6 semanas con supervivencia global no alcanzada. La supervivencia sigue siendo alta, con un 96% (NPM1-m) y un 88% (KMT2A-r) vivos y en estudio.

El conjunto combinado de seguridad (n = 82) mostró un perfil consistente con datos previos. Eventos adversos relacionados con el tratamiento ≥Grado 3 >10% incluyeron neutropenia febril (15%), trombocitopenia (15%), anemia (11%) y neutropenia (11%). Importante, no se observaron toxicidades limitantes de dosis, prolongación significativa del QTc, interacciones medicamentosas ni mielosupresión aditiva; un único caso de síndrome de diferenciación grado 3 fue manejado con éxito.

Kura planea iniciar los ensayos aleatorizados de Fase 3 KOMET-017 (con quimioterapia intensiva y no intensiva) en la segunda mitad de 2025. La compañía también organizó un evento virtual para inversores el 18 de junio de 2025 (Exhibición 99.1) para discutir los datos.

Kura Oncology (KURA)� 신규 진단� NPM1-m 또는 KMT2A-r 돌연변이를 가� AML 환자� 대상으� � KOMET-007 연구에서 경구� menin 억제제인 ziftomenib� 1a/1b� 업데이트 결과� 발표하는 8-K� 제출했습니다. 표준 7+3 화학요법� 함께 투여� 600mg QD 용량은 강력� 복합 완전 관해율(CRc) 92% (65/71)완전 관�(CR) 80% (57/71)� 나타냈으�, � 유전 하위 그룹 모두에서 유사� 효능� 보였습니�(CRc: NPM1-m 93%, KMT2A-r 89%). MRD 음성 CR 비율은 NPM1-m에서 71%, KMT2A-r에서 88%� 도달했으�, � 4~5� 내에 달성되었습니�.

지속성 신호가 나타나고 있습니다: 중간 CR 지� 기간 � 전체 생존율은 NPM1-m 환자에서 중앙� 24.9� 추적 관� � 아직 도달하지 않았습니�; KMT2A-r 환자� CR 중간 지� 기간 25.6주를 보이� 전체 생존율은 도달하지 않았습니�. 생존율은 높게 유지되어 NPM1-m 96%, KMT2A-r 88%가 여전� 연구� 참여 중입니다.

통합 안전� 데이� 세트(n = 82)� 이전 데이터와 일치하는 프로파일� 보였습니�. 3등급 이상 치료 관� 이상반응 � 10% 초과� 발열� 호중� 감소�(15%), 혈소� 감소�(15%), 빈혈(11%), 호중� 감소�(11%)� 포함됩니�. 중요� 점은 용량 제한 독성, 의미 있는 QTc 연장, 약물 상호작용 또는 추가 골수억제가 없었�� 것입니다; 단일 3등급 분화 증후� 사례� 성공적으� 관리되었습니다.

ܰ� 2025� 하반기에 KOMET-017 무작� 3� 시험(집중 � 비집� 화학요법 기반)� 시작� 계획입니�. 또한 2025� 6� 18일에 가� 투자� 행사� 개최하여(전시 99.1) 데이터를 논의했습니다.

Kura Oncology (KURA) a déposé un formulaire 8-K annonçant les résultats mis à jour de la Phase 1a/1b pour ziftomenib, son inhibiteur oral de la menine, issus de l'étude KOMET-007 chez des patients atteints de LMA nouvellement diagnostiqués avec des mutations NPM1-m ou KMT2A-r. La dose quotidienne de 600 mg administrée avec la chimiothérapie standard 7+3 a produit un taux robuste de rémission complète composite (CRc) de 92 % (65/71) et une réponse complète (CR) de 80 % (57/71), avec une efficacité similaire dans les deux sous-groupes génétiques (CRc : 93 % NPM1-m, 89 % KMT2A-r). Les taux de CR négatifs pour la MRD ont atteint 71 % pour NPM1-m et 88 % pour KMT2A-r, obtenus en environ 4 à 5 semaines.

Des signaux de durabilité émergent : la durée médiane de la CR et la survie globale n'ont pas encore été atteintes chez les patients NPM1-m après un suivi médian de 24,9 semaines ; les patients KMT2A-r présentent une durée médiane de CR de 25,6 semaines avec une survie globale non atteinte. La survie reste élevée, avec 96 % (NPM1-m) et 88 % (KMT2A-r) vivants et toujours dans l'étude.

Le groupe de sécurité combiné (n = 82) a montré un profil cohérent avec les données antérieures. Les événements indésirables liés au traitement de grade �3 >10 % comprenaient une neutropénie fébrile (15 %), une thrombocytopénie (15 %), une anémie (11 %) et une neutropénie (11 %). Il est important de noter qu'il n'y a eu aucune toxicité limitante de dose, allongement significatif du QTc, interaction médicamenteuse ou myélosuppression additive ; un seul cas de syndrome de différenciation de grade 3 a été géré avec succès.

Kura prévoit de lancer les essais randomisés de Phase 3 KOMET-017 (avec chimiothérapie intensive et non intensive) au second semestre 2025. La société a également organisé un événement virtuel pour les investisseurs le 18 juin 2025 (Exhibit 99.1) pour discuter des données.

Kura Oncology (KURA) hat eine 8-K eingereicht, in der aktualisierte Phase 1a/1b-Ergebnisse für ziftomenib, seinen oralen Menin-Inhibitor, aus der KOMET-007-Studie bei neu diagnostizierten AML-Patienten mit NPM1-m- oder KMT2A-r-Mutationen bekanntgegeben werden. Die 600 mg QD-Dosis, verabreicht zusammen mit der Standard-7+3-Chemotherapie, erzielte eine robuste zusammengesetzte komplette Remission (CRc) von 92 % (65/71) und eine komplette Remission (CR) von 80 % (57/71), mit ähnlicher Wirksamkeit in beiden genetischen Untergruppen (CRc: 93 % NPM1-m, 89 % KMT2A-r). MRD-negative CR-Raten erreichten 71 % für NPM1-m und 88 % für KMT2A-r, erreicht in etwa 4�5 Wochen.

Signale zur Dauerhaftigkeit zeichnen sich ab: Die mediane CR-Dauer und das Gesamtüberleben wurden bei NPM1-m-Patienten nach einer medianen Nachbeobachtungszeit von 24,9 Wochen noch nicht erreicht; KMT2A-r-Patienten zeigen eine mediane CR-Dauer von 25,6 Wochen, das OS wurde nicht erreicht. Die Überlebensrate bleibt hoch, mit 96 % (NPM1-m) und 88 % (KMT2A-r), die noch leben und in der Studie sind.

Der gepoolte Sicherheitsdatensatz (n = 82) zeigte ein Profil, das mit früheren Daten übereinstimmt. ≥Grad 3 behandlungsbedingte unerwünschte Ereignisse >10 % umfassten febrile Neutropenie (15 %), Thrombozytopenie (15 %), Anämie (11 %) und Neutropenie (11 %). Wichtig ist, dass keine dosislimitierenden Toxizitäten, keine bedeutsame QTc-Verlängerung, keine Arzneimittelwechselwirkungen oder additive Myelosuppression auftraten; ein einzelner Fall eines Grad-3-Differenzierungssyndroms wurde erfolgreich behandelt.

Kura plant, die KOMET-017 randomisierten Phase-3-Studien (intensive und nicht-intensive Chemo-Backbones) in der zweiten Hälfte 2025 zu starten. Das Unternehmen veranstaltete außerdem am 18. Juni 2025 ein virtuelles Investoren-Event (Anlage 99.1), um die Daten zu besprechen.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

 

 

FORM 8-K

 

 

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 12, 2025

 

 

KURA ONCOLOGY, INC.

(Exact name of Registrant as Specified in Its Charter)

 

 

 

Delaware   001-37620   61-1547851

(State or Other Jurisdiction

of Incorporation)

  (Commission
File Number)
 

(IRS Employer

Identification No.)

 

12730 High Bluff Drive, Suite 400, San Diego, CA   92130
(Address of Principal Executive Offices)   (Zip Code)

Registrant’s Telephone Number, Including Area Code: (858) 500-8800

N/A

(Former Name or Former Address, if Changed Since Last Report)

 

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instructions A.2. below):

 

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

 

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

 

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

 

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class

 

Trading
Symbol(s)

 

Name of each exchange
on which registered

Common Stock, par value $0.0001 per share   KURA   The Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

 

 
 


Item 8.01

Other Events.

On June 12, 2025, Kura Oncology, Inc. (the “Company”) and Kyowa Kirin Co., Ltd. (“Kyowa Kirin”) announced 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, cytarabine/daunorubicin (“7+3”), in patients with newly diagnosed nucleophosmin 1-mutant (“NPM1-m”) and KMT2A-rearranged (“KMT2A-r”) acute myeloid leukemia (“AML”).

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 (“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% confidence interval, range 8.3-not evaluable), 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.

The Company expects to start KOMET-017 intensive chemotherapy and non-intensive chemotherapy randomized Phase 3 studies in the second half of 2025.

On June 18, 2025, the Company hosted a virtual investor event and presented certain materials related to the Company (the “Presentation”). A copy of the Presentation is attached hereto as Exhibit 99.1 and incorporated herein by reference.

Forward-Looking Statements

Statements contained in this Current Report on Form 8-K regarding matters that are not historical facts are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Because such statements are subject to risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements, including, but not limited to, statements regarding, among other things, the efficacy, safety and therapeutic potential of ziftomenib and the expected timing for starting KOMET-017 intensive chemotherapy and non-intensive chemotherapy randomized Phase 3 studies.

Any forward-looking statements in this Current Report on Form 8-K are based on management’s current expectations of future events and are subject to a number of risks and uncertainties that could cause actual results to differ materially and adversely from those set forth in or implied by such forward-looking statements. Risks that


contribute to the uncertain nature of the forward-looking statements include: the risk that compounds that appeared promising in early research or clinical trials do not demonstrate safety and/or efficacy in later preclinical studies or clinical trials, the risk that the Company may not obtain approval to market its product candidates, uncertainties associated with performing clinical trials, regulatory filings, and other interactions with regulatory bodies, risks associated with reliance on third parties to successfully conduct clinical trials, the risks associated with reliance on outside financing to meet capital requirements, the risk that the collaboration with Kyowa Kirin is unsuccessful and other risks associated with the process of discovering, developing and commercializing drugs that are safe and effective for use as human therapeutics, and in the endeavor of building a business around such drugs, as well as those risks and uncertainties set forth more fully under the caption “Risk Factors” in the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2025 filed with the Securities and Exchange Commission (“SEC”) on May 1, 2025, as well as discussions of potential risks, uncertainties and other important factors in the Company’s other filings and reports with the SEC. All forward-looking statements contained in this Current Report on Form 8-K speak only as of the date on which they were made. The Company undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made.

 

Item 9.01

Financial Statements and Exhibits.

(d) Exhibits.

 

Exhibit

Number

  

Description

99.1    Presentation Materials of Kura Oncology, Inc.
104    Cover Page Interactive Data File (embedded within the Inline XBRL document)


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

 

    KURA ONCOLOGY, INC.
Date: June 18, 2025     By:  

/s/ Teresa Bair

      Teresa Bair
      Chief Legal Officer

FAQ

What remission rates did Kura Oncology (KURA) report for ziftomenib in KOMET-007?

The study showed a 92 % composite complete remission and 80 % complete remission across 71 evaluable AML patients.

How quickly did patients achieve MRD-negative status with ziftomenib?

Median time to MRD-negative CR was 4.7 weeks (NPM1-m) and 4.4 weeks (KMT2A-r).

Were any dose-limiting toxicities observed in the Phase 1a/1b trial?

No dose-limiting toxicities or clinically meaningful QTc prolongation were reported at the 600 mg QD dose.

When will Kura start its Phase 3 KOMET-017 studies?

The company expects to initiate randomized Phase 3 trials in the second half of 2025.

What were the most common ≥Grade 3 treatment-related adverse events?

They included febrile neutropenia (15 %), decreased platelet count (15 %), anemia (11 %) and neutropenia (11 %).
Kura Oncology Inc

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