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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT03662126
Other study ID # KRT-232-101
Secondary ID
Status Recruiting
Phase Phase 2/Phase 3
First received
Last updated
Start date January 15, 2019
Est. completion date December 31, 2025

Study information

Verified date April 2023
Source Kartos Therapeutics, Inc.
Contact John Mei
Phone 650-542-0136
Email jmei@kartosthera.com
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study evaluates KRT-232, a novel oral small molecule inhibitor of MDM2, for the treatment of patients with myelofibrosis (MF) who no longer benefit from treatment with a JAK inhibitor. Inhibition of MDM2 is a novel mechanism of action in MF. This study will be conducted in 2 phases. Phase 2 will determine the KRT-232 recommended dose and dosing schedule; Phase 3 will test KRT-232 vs Best Available Therapy (BAT). Patients in the Phase 3 part of the study will be randomized 2:1 to receive either KRT-232 (Arm 1) or BAT (Arm 2). The BAT administered will be determined by the treating physician, with the option to "cross-over" to KRT-232 treatment after 6 months of BAT or if the disease worsens at any time.


Recruitment information / eligibility

Status Recruiting
Enrollment 385
Est. completion date December 31, 2025
Est. primary completion date December 31, 2023
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Confirmed diagnosis of PMF, post-PV MF or post-ET MF (WHO) - High, intermediate-2, or intermediate-1 risk Dynamic International Prognostic System (DIPSS) - Failure of prior treatment with JAK inhibitor - ECOG = 2 Exclusion Criteria: - Prior splenectomy - Splenic irradiation within 3 months prior to randomization - History of major hemorrhage or intracranial hemorrhage within 6 months prior to randomization - History of stroke, reversible ischemic neurological defect or transient ischemic attack within 6 months prior to randomization - Prior MDM2 inhibitor therapy or p53-directed therapy - Prior allogeneic stem-cell transplant or plans for allogeneic stem cell transplant - History of major organ transplant - Grade 2 or higher QTc prolongation (> 480 milliseconds per NCI-CTCAE criteria, version 5.0)

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
KRT-232
KRT-232, administered by mouth
Best Available Therapy (BAT)
Best available therapy options include: hydroxyurea chemotherapy or supportive care (including but not limited to corticosteroids and androgens; JAK inhibitors not allowed).

Locations

Country Name City State
Argentina Instituto Medico Alexander Fleming Buenos Aires
Argentina Centro Medico San Luis Caba
Argentina Hospital Privado - Centro Medico de Cordoba - Oncology Córdoba
Argentina Sanatorio de la Mujer Rosario Santa Fe
Australia Royal Adelaide Hospital Adelaide
Australia Monash Medical Centre Clayton Victoria
Australia The Alfred Hospital Melbourne
Australia Fiona Stanley Hosital Murdoch Western Australia
Australia South Eastern Private Hospital Noble Park
Australia Icon Cancer Center South Brisbane
Brazil UNICAMP - Universidade Estadual de Campinas Hemocentro Campinas São Paulo
Brazil Hospital Erasto Gaertner Curitiba Parana
Brazil Centro de oncologia Leonardo da Vinci Fortaleza Ceara
Brazil Hospital das Clínicas UFG Goiânia
Brazil Fundacao Doutor Amaral Carvalho Jau
Brazil Associação Educadora São Carlos AESC - Hospital Mãe de Deus - Centro de Pesquisa Porto Alegre
Brazil Hospital de Clinicas de Porto Alegre - Centro de Pesquisa Clinica Porto Alegre
Brazil Hospital A C Camargo - Fundacao Antonio Prudente Sao Paulo
Brazil Hospital das Clínicas da Universidade de São Paulo Sao Paulo
Brazil Instituto de Ensino e Pesquisa São Lucas Sao Paulo
Brazil Instituto COI São Paulo São Paulo
Brazil Instituto D'or de Pesquisa e Ensino São Paulo
Bulgaria University Multiprofile Hospital for Active Treatment Dr. Georgi Stranski, Pleven Pleven
Bulgaria University Multiprofile Hospital for Active Treatment Sveti Georgi, Plovdiv Plovdiv
Bulgaria Acibadem City Clinic Tokuda Hospital, Sofia Sofia
Bulgaria Military Medical Academy, Multiprofile for active treatment, Sofia Sofia
Bulgaria Specialized Hospital for Active Therapy of Hematological Disorders Sofia
Bulgaria University Multiprofile Hospital for Active Treatment Alexandrovska, Sofia Sofia
Bulgaria University Multiprofile Hospital for Active Treatment Saint Ivan Rilski, Sofia Sofia
Canada Princess Margaret Cancer Center Toronto Ontario
Croatia General Hospital Sibenik Sibenik
Croatia Clinical Hospital Centre Osijek Zagreb
Croatia KB Sestre Milosrdnice Zagreb
Czechia FN Hradec Kralove Králová
Czechia Vseonecma fakultni nemocrince V Praze Nové Mesto
Czechia Fakultní Nemocnice Olomouc Olomouc
France Centre Hospitalier Universitaire D'Amiens (Hopital Sud) - Hématologie Clinique Amiens
France Center Hospitalier Universitaire d'Angers Angers
France C.H de la Côte Basque - Serviv Bayonne
France Centre Hospitalier Regional Universitaire Brest Hopital Morvan Brest Cedex
France Centre Hospitalier Universitaire of Caen Normandie - Côte de Nacre Caen
France Centre Hospitalier Le Mans Le Mans
France Centre Hospitalier Universitaire de Nîmes Nîmes
France Hôpital Saint-Louis Paris
France Centre Hospitalier Universitaire de Poitiers Poitiers
France Institut Universitaire du Cancer de Toulouse Oncopole Toulouse
France Hopital Paul Brousse - Aphp Hôpitaux Universitaires Paris Su Villejuif
Germany Universitätsklinikum Aachen Aachen Nordrhein-Westfalen
Germany Charité Universitätsmedizin Berlin Berlin
Germany Gemeinschaftspraxis Haematologie - Onkologie - Hauptstelle Dresden Sachsen
Germany Technische Universität Dresden Dresden Sachsen
Germany Universitaetsklinikum Essen Essen Nordrhein-Westfalen
Germany Universitätsklinikum Halle Halle Sachsen-Anhalt
Germany UKE - Universitätsklinikum Hamburg-Eppendorf Hamburg
Germany Universitätsklinikum Jena Jena Thuringen
Germany Universitätsmedizin der Johannes Gutenberg Universität Mainz Mainz
Germany Klinikum Rechts der Isar der Technischen Universität München Apotheke München Bayern
Germany Stauferklinikum Schwäbisch Gmünd Mutlangen
Germany Praxis für Hämatologie und Onkologie Saarbrücken
Greece University General Hospital of Ioannina Ioánnina Ioannina
Greece University Campus of Patras - Hematology Patras
Greece AHEPA General Hospital of Thessaloniki Thessaloníki
Hong Kong Queen Mary Hospital Hong Kong
Hong Kong Prince of Wales Hospital - Medicine Shatin
Hungary Dél-pesti Centrumkórház - Országos Hematológiai és Infektológiai Intézet Budapest
Hungary Semmelweis Egyetem Budapest
Hungary Debreceni Egyetem Orvos es Egeszsegtudomanyi Centrum Debrecen
Hungary Somogy Megyei Kaposi Mór Oktató Kórház Kaposvár Somogy
Hungary Szabolcs-Szatmár-Bereg Megyei Kórházak és Egyetemi Oktatókórház Nyíregyháza Szabolcs-Szatmar-Bereg
Hungary Szegedi Tudományegyetem Szeged
Hungary Markusovszky Egyetemi Oktatókórház Szombathely Vas
Israel Ha'Emek Medical Center Afula
Israel Assuta Ashdod University Hospital Ashdod
Israel Carmel MC Haifa
Israel Rambam Medical Centre Haifa
Israel Hadassah Medical Organisation Jerusalem
Israel Hematology Institute Kfar Saba
Israel Western Galilee Hospital - Nahariya Nahariya
Israel Rabin Medical Center - Beilinson Hospital Petah Tikva
Israel Assuta MC Tel Aviv
Israel Tel Aviv Sourasky Medical Center - Oncology Tel Aviv
Israel Assaf Harofeh Medical Center - Hematology Zerifin
Italy PO Civile SS.Antonio e Biagio Alessandria
Italy AOU Ospedali Riuniti Umberto I G.M. Lancisi G. Salesi Ancona
Italy A.O.di Bologna Policl.S.Orsola Bologna
Italy AO Spedali Civili di Brescia Brescia
Italy Azienda Ospedaliero Universitaria Policlinico - Vittorio Emanuele Catania
Italy AOU Careggi Firenze
Italy Istituto Romagnolo per lo Studio dei Tumori "Dino Amadori" - IRST IRCCS Meldola
Italy ASST Grande Ospedale Metropolitano Niguarda Milano
Italy Ospedale Maggiore Policlinico, Fondazione IRCCS Ca' Granda Milano
Italy A.O. San Gerardo di Monza - L'Ospedale San Gerardo di Monza e l'Università di Milano Monza Lombardia
Italy AOU Maggiore della Carità Novara
Italy Azienda Ospedaliera Ospedali Riuniti Marche Nord - Pesaro Pesaro
Italy Arcispedale S. Maria Nuova, AO di Reggio Emilia Reggio Emilia
Italy Policlinico Universitario Agostino Gemelli Roma
Italy A.O. Citta della Salute e della Scienza di Torino Torino
Korea, Republic of Inje University Busan Paik Hospital Busan
Korea, Republic of Keimyung University Dongsan Medical Center Daegu
Korea, Republic of Kyungpook National University Hospital Daegu
Korea, Republic of Yeungnam University Medical Center Daegu
Korea, Republic of CHA Bundang Medical Center, CHA University Seongnam-si
Korea, Republic of Samsung Medical Center Seoul
Korea, Republic of Seoul National University Hospital Seoul
Korea, Republic of The Catholic University of Korea, Seoul St. Mary's Hospital Seoul
Lithuania Hospital of Lithuanian University of Health Sciences Kaunas Kaunas
Mexico Instituto Mexicano del Seguro Social Monterrey
Mexico Universidad Autonoma de Nuevo Leon (UANL) - Hospital Universitario "Dr. Jose Eleuterio Gonzalez Monterrey Nuevo Leon
Mexico Oaxaca Site Management Organization OSMO Oaxaca
Mexico Sociedad de Metabolismo y Corazón S.C. - Oncology Veracruz
Philippines Perpetual Succour Hospital - Hemat/Transfusion Med Cebu City
Philippines University of the Philippines - Philippine General Hospital Manila
Poland Szpital Specjalistyczny w Brzozowie Podkarpacki Osrodek Onkologiczny im. Ks. B. Markiewicza Brzozow Podkarpackie
Poland Szpital Uniwersytecki nr 2 im dr. Jana Biziela Bydgoszcz
Poland Samodzielny Publiczny Zaklad Opieki Zdrowotnej Zespól Szpitali Miejskich Chorzów Slaskie
Poland Samodzielny Publiczny Szpital Kliniczny nr 1 w Lublinie Lublin
Poland SPZOZ MSWiA z Warminsko - Mazurskim Centrum Onkologii Olsztyn
Poland Szpital Wojewódzki w Opolu Opole
Poland Clinical Research Center Spólka z Ograniczona Odpowiedzialnoscia Medic-R sp. k. Poznan
Poland Wojewodzki Szpital Specjalistyczny im. Janusza Korczaka w Slupsku Sp. z o.o. Slupsk
Poland Dolnoslaskie Centrum Transplantacji Komórkowych z Krajowym Bankiem Dawców Szpiku Wroclaw Dolnoslaskie
Portugal H. Infante Dom Pedro. Centro Hospitalar do Baixo Vouga Aveiro
Portugal Hospital de Braga Braga
Portugal Instituto Português de Oncologia de Coimbra Coimbra
Portugal H. São Francisco Xavier-Centro Hospitalar Lisboa Ocidental Lisboa
Portugal Champalimaud Cancer Center Lisbon
Romania Cen Med de Diagn si Trat Amb NEOMED Brasov
Romania Spitalul Clinic Colentina Bucharest
Romania Medicover Bucuresti
Romania Spitalul Clinic Coltea Bucuresti
Romania Institutul Oncologic "Prof. Dr. Ion Chiricuta" Cluj-Napoca
Romania Spitalul Clinic Municipal Filantropia Craiova Craiova
Romania Institutul Regional de Oncologie Iasi Iasi
Romania Spitalul Clinic Judetean de Urgenta Tg Mures Târgu-Mures
Romania Oncomed Timisoara
Romania Spitalul Clinic Municipal de Urgenta Timisoara Timisoara
Russian Federation Clinical oncological dispensary Omsk
Russian Federation Saint-Petersburg SMU I.P.Pavlov St Petersburg
Russian Federation Oncologic dispensary of Komi Republic Syktyvkar
Spain Hospital Universitari Germans Trias i Pujol Badalona Barcelona
Spain Hospital de La Santa Creu i Sant Pau Barcelona
Spain Hospital Universitario Vall d'Hebrón Barcelona
Spain Hospital San Pedro de Alcantara Cáceres
Spain Hospital Universitario de Gran Canaria Doctor Negrin Las Palmas De Gran Canaria Las Palmas
Spain Hospital Universitario Puerta de Hierro - Majadahonda Majadahonda Madrid
Spain Hospital Universitario Virgen de la Victoria Málaga
Spain Hospital Universitario Son Espases Palma de Mallorca
Spain Complejo Hospitalario de Navarra - H. de Navarra, Hematología C/ de Irunlarrea, 3, Pamplona Pamplona
Spain Hospital Universitario de Salamanca Salamanca
Spain Hospital Universitario Doctor Peset Valencia
Spain H. Quirón Zaragoza Zaragoza
Taiwan Chang Gung Medical Foundation - ChiaYi Chang Gung Memorial Hospital - Chiayi Branch Chiayi City
Taiwan Kaohsiung Medical University - Chung-Ho Memorial Hospital Kaohsiung
Taiwan China Medical University Hospital Taichung
Taiwan National Taiwan University Hospital Taipei City Taipei
Thailand Ramathibodi Hospital - Mahidol University - Hematology Bangkok
Thailand Siriraj Hospital Bangkok
Thailand Thammasat University Hospital Khlong Luang
Thailand Srinagarind Hospital (KhonKaen University) Khon Kaen
Thailand Songklanagarind Hospital Songkhla
Turkey Sakarya Research and Training Hospital Adapazari
Turkey Ankara University Faculty of Medicine Ankara
Turkey Gazi University Medical Faculty Ankara
Turkey Pamukkale University Denizli
Turkey Gaziantep University Faculty of Medicine Gaziantep
Turkey Inonu University Turgut Ozal Medical Center Malatya
Turkey Mersin University Medical Faculty Mersin
Turkey Ondokuz Mayis University Medical Faculty - Hematology Samsun
United Kingdom University Hospitals Birmingham NHS Foundation Trust Birmingham
United Kingdom NHS Greater Glasgow and Clyde Glasgow
United Kingdom Guy's and Saint Thomas' NHS Foundation Trust London
United Kingdom Oxford University Hospitals NHS Foundation Trust Oxford
United States The Kirklin Clinic of UAB Hospital Birmingham Alabama
United States Dana-Farber Cancer Institute Boston Massachusetts
United States University Cancer Institute Boynton Beach Florida
United States Brookdale University Hospital and Medical Center Brooklyn New York
United States Gabrail Cancer Center Canton Ohio
United States Northwestern University Feinberg School of Medicine Chicago Illinois
United States University of Illinois at Chicago Chicago Illinois
United States The Ohio State University Comprehensive Cancer Center Columbus Ohio
United States The University of Texas MD Anderson Cancer Center Houston Texas
United States University of Southern California Norris Comprehensive Cancer Center Los Angeles California
United States Medical College of Wisconsin - Froedtert Hospital Milwaukee Wisconsin
United States Vanderbilt University Medical Center Nashville Tennessee
United States Mt. Sinai New York New York
United States New York Presbyterian/Weill Cornell Medical Center New York New York
United States Oregon Health and Science University Portland Oregon
United States Washington University School of Medicine Saint Louis Missouri
United States Avera Cancer Institute Sioux Falls South Dakota
United States Stanford Cancer Center - Palo Alto Stanford California
United States Innovative Clinical Research Institute Whittier California

Sponsors (1)

Lead Sponsor Collaborator
Kartos Therapeutics, Inc.

Countries where clinical trial is conducted

United States,  Argentina,  Australia,  Brazil,  Bulgaria,  Canada,  Croatia,  Czechia,  France,  Germany,  Greece,  Hong Kong,  Hungary,  Israel,  Italy,  Korea, Republic of,  Lithuania,  Mexico,  Philippines,  Poland,  Portugal,  Romania,  Russian Federation,  Spain,  Taiwan,  Thailand,  Turkey,  United Kingdom, 

References & Publications (1)

Al-Ali, H.K.; Delgado, R.G.; Lange, A.; Pluta, A.; McLornan, D.; Vachhani, P.; Damaj, G.L.; Jost, P.J.; Rejto, L.; Hus, M.; et al. KRT-232, A First-In-Class, Murine Double Minute 2 Inhibitor, for Myelofibrosis Relapsed or Refractory to Janus-Associated Kinase Inhibitor Treatment. Eha. Libr. 2020, 295035, S215

Outcome

Type Measure Description Time frame Safety issue
Primary (Part A Only) Spleen Volume Reduction (SVR) The proportion of subjects achieving a = 35% spleen volume reduction (SVR) from Baseline to Week 24, as assessed by magnetic resonance imaging (MRI) or computed tomography (CT) scan 24 weeks
Primary (Part B Only) Spleen Volume Reduction (SVR) The proportion of subjects achieving SVR of = 35% at Week 24 by MRI/CT scan (central review) 24 Weeks
Secondary (Part A only) Improvement in Total Symptom Score (TSS) The proportion of subjects who have at least a 50% reduction from Baseline to Week 24 and Week 48 in the total symptom score as measured by the modified MPN-SAF v2.0 48 weeks
Secondary (Part B only) Improvement of Total Symptom Score (TSS) The proportion of subjects who have at least a 50% reduction from Baseline to Week 24 in the total symptom score as measured by the MF-SAF v4.0 24 Weeks
Secondary (Part B only) Overall Survival (OS) Time from randomization to death from any cause 48 months
Secondary (Part B only) Progression free survival (PFS) Time from randomization to either first occurrence of disease progression or death due to any cause 48 months
Secondary (Part B Only) Overall Spleen Volume Reduction (SVR) The proportion of subjects in each arm achieving SVR of = 35% at any time by MRI/CT scan (central review) 48 months
Secondary (Part B Only) Spleen Response Duration Time from initial SVR of = 35% by MRI/CT (central review) until the first occurrence of disease progression 48 months
Secondary (Part B Only) Rate of conversion from RBC transfusion dependent to independent The proportion of subjects who have RBC transfusion independence at week 24 24 weeks
See also
  Status Clinical Trial Phase
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Completed NCT01558739 - Exploratory Phase II Study of INC424 Patients With Primary Myelofibrosis (PMF) or Post Polycythaemia Myelofibrosis (PPV MF) or Post Essential Thrombocythaemia Myelofibrosis (PET-MF) Phase 4
Completed NCT00910728 - Study to Assess the Safety of AZD1480 in Patients With Myeloproliferative Diseases Phase 1
Completed NCT02101268 - Efficacy of Momelotinib Versus Best Available Therapy in Anemic or Thrombocytopenic Subjects With Primary Myelofibrosis (MF), Post-polycythemia Vera MF, or Post-essential Thrombocythemia MF Phase 3
Completed NCT03136185 - Bomedemstat (IMG-7289/MK-3543) in Participants With Myelofibrosis (IMG-7289-CTP-102/MK-3543-002) Phase 1/Phase 2
Completed NCT04217993 - Jaktinib for the Treatment of Ruxolitinib Intolerance of Myelofibrosis Phase 2
Completed NCT02515630 - Momelotinib in Transfusion-Dependent Adults With Primary Myelofibrosis (PMF) or Post-polycythemia Vera or Post-essential Thrombocythemia Myelofibrosis (Post-PV/ET MF) Phase 2
Terminated NCT03935555 - Assess the Safety, Tolerability Oral PU-H71 in Subjects Taking Ruxolitinib Phase 1
Recruiting NCT04878003 - Study of KRT-232 or TL-895 in Janus Associated Kinase Inhibitor Treatment-Naïve Myelofibrosis Phase 2
Available NCT04745637 - Managed Access Programs for INC424, Ruxolitinib