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A Phase 1/2 Study of Bleximenib in Participants With Acute Leukemia

Phase 1
Recruiting
Conditions
Acute Lymphoblastic Leukemia
Acute Leukemias
Acute Myeloid Leukemia
Interventions
Drug: Bleximenib
Registration Number
NCT04811560
Lead Sponsor
Janssen Research & Development, LLC
Brief Summary

The purpose of this study is to determine the recommended Phase 2 dose(s) (RP2D\[s\]) of bleximenib in phase 1 (Part 1 \[Dose Escalation\] and to determine the safety and tolerability at RP2D in Phase 1 Part 2 (Dose expansion). The purpose of the Phase 2 part of the study is to evaluate the efficacy of bleximenib at the RP2D.

Detailed Description

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
400
Inclusion Criteria

Phase 1:

  • Relapsed or refractory (R/R) acute leukemia and has exhausted, or is ineligible for, available therapeutic options
  • Participants greater than or equal (>=)12 and less than (<) 18 years of age are only eligible for the Phase 1 adolescent cohort
  • Acute leukemia harboring histone-lysine N-methyltransferase 2A (KMT2A), nucleophosmin 1 gene (NPM1) or nucleoporin 98 gene or nucleoporin 214 gene (NUP98 or NUP214) alterations

Phase: 2

  • Participants greater than 18 years are eligible
  • Must have had an initial diagnosis of acute myeloid leukemia (AML) per the WHO 2022 classification criteria and have relapsed/refractory disease
  • AML harboring KMT2A-r (gene rearrangement/translocation) or NPM1 mutations only

For Both Phase 1 and 2:

  • Pretreatment clinical laboratory values meeting the following criteria: (a) Hematology: white blood cell (WBC) count less than or equal to (<=) 20*10^9/liter (L) and (b) renal function; Estimated or measured glomerular filtration rate greater than or equal to (>=) 50 milliliter per minute (mL/min) per four variable modified diet in renal disease (MDRD) equation
  • Eastern Cooperative Oncology Group (ECOG) performance status grade of 0, 1 or 2. Adolescent participants only: Performance status >=70 by Lansky scale (for participants less than [<]16 years of age) or >=70 Karnofsky scale (for participants >=16 years of age)
  • A female of childbearing potential must have a negative highly sensitive serum beta-human chorionic gonadotropin at screening and within 48 hours prior to the first dose of study treatment
  • Participant must agree to all protocol required contraception requirements and avoid sperm or egg donations or freezing for future reproductive use while on study and for 90 days (males) or 6 months (females) after the last dose of study treatment
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Exclusion Criteria
  • Acute promyelocytic leukemia, diagnosis of Down syndrome associated leukemia or juvenile myelomonocytic leukemia according to World Health Organization (WHO) 2016 criteria
  • Active central nervous system (CNS) disease
  • Prior solid organ transplantation
  • QTc according to Fridericia's formula (QTcF) for males >= 450 millisecond (msec) or for females >= 470 msec. Participants with a family history of Long QT syndrome are excluded
  • Exclusion criteria related to stem cell transplant: a. Received prior treatment with allogenic bone marrow or stem cell transplant <=3 months before the first dose of study treatment; b. Has evidence of graft versus host disease; c. Received donor lymphocyte infusion <=1 month before the first dose of study treatment; d. Requires immunosuppressant therapy (exception: daily doses <=10 milligrams (mg) prednisone or equivalent are allowed for adrenal replacement)
  • Prior cancer immunotherapy within 4 weeks prior to enrollment or blinatumomab within 2 weeks prior to enrollment. Additional prior cancer therapies must not be given within 4 weeks prior to enrollment or 5 half-lives of the agent (whichever is shorter)
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Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
BleximenibBleximenibParticipants in Phase 1 Part 1 (dose escalation) will receive bleximenib orally. The dose levels will be escalated based on the dose limiting toxicities (DLT) evaluation by Study Evaluation Team (SET) until the recommended Phase 2 Doses (RP2Ds) have been identified. Participants in Phase 1 Part 2 (dose expansion) will receive bleximenib orally at the RP2D(s) determined in Part 1.
Primary Outcome Measures
NameTimeMethod
Phase 1: Number of Participants with Adverse Events (AEs) as a Measure of Safety and TolerabilityUp to 4 years and 9 months

An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study.

Phase 1: Part 1: Percentage of Participants with Dose-Limiting Toxicity (DLT)Up to 28 days Cycle 1

Percentage of participants with DLT will be assessed accordingly to national cancer institute common terminology criteria for adverse events (NCI CTCAE) version 5.

Phase 1: Number of Participants with AEs by SeverityUp to 4 years and 9 months

Severity will be graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) version 5.0. Severity scale ranges from Grade 1 (Mild) to Grade 5 (Death). Grade 1= Mild, Grade 2= Moderate, Grade 3= Severe, Grade 4= Life-threatening and Grade 5= Death related to adverse event.

Phase 2: Rate of Complete Remission or Complete Remission with Partial Hematologic Recovery (CR/CRh)Up to 4 years and 9 months

Rate of CR/CRh is defined as the percentage of participants achieving a CR or CRh at any time post-treatment.

Secondary Outcome Measures
NameTimeMethod
Phase 1 and 2: Plasma Concentration of BleximenibUp to 4 years and 9 months

Plasma concentration of bleximenib will be reported.

Phase 1 and 2: Overall Response Rate (ORR)Up to 4 years and 9 months

ORR is defined as the percentage of participants who achieve any response.

Phase 1 and 2: Duration of Response (DOR)Up to 4 years and 9 months

DOR will be calculated among responders from the date of initial documentation of a response to the date of first documented evidence of relapse, as defined in the disease-specific response criteria, or death due to any cause, whichever occurs first.

Phase 1 and 2: Time To Response (TTR)Up to 4 years and 9 months

TTR is defined for the responders as the time from the date of the first dose of bleximenib to the date of the first documented response.

Phase 2: Duration of Complete Response (CR)/Complete Remission With Partial Hematologic Recovery (CRh)Up to 4 years and 9 months

The duration of CR/CRh is defined from the date of first CR or CRh response achieved to the date of first evidence of relapsed disease or death due to any cause, whichever occurs first, for participants who achieve a CR or CRh.

Phase 2: Time To CR/CRhUp to 4 years and 9 months

Time to CR/CRh is defined for responders as the time from the date of the first dose of bleximenib to the date of first achieving either CR or CRh, depending on which milestone is reached.

Phase 2: Event-free survival (EFS)Up to 4 years and 9 months

EFS is defined as the time from the date of first dose of study treatment to the date of treatment failure, relapse, or death due to any cause, whichever occurs first.

Phase 2: Overall survival (OS)Up to 4 years and 9 months

OS is defined from the date of first dose of study treatment to the date of death due to any cause.

Phase 2: Measurable Residual Disease (MRD) Negativity Among Participants Achieving CR/CRh/CRiUp to 4 years and 9 months

MRD-negative rate is defined as the percentage of participants who are MRD-negative at any timepoint after the first dose of bleximenib in the responders.

Phase 2: Number of Participants with Adverse Events (AEs) and Serious Adverse Events (SAEs)Up to 4 years and 9 months

An AE is any untoward medical event that occurs in a participant administered an investigational product, and it does not necessarily indicate only events with clear causal relationship with the relevant investigational product. A Serious AE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.

Phase 2: Number of Participants Reporting Transfusion IndependenceUp to 4 years and 9 months

Transfusion independence is defined as independence from red blood cells (RBC) and platelet transfusions during any 56-day interval after receiving study treatment.

Trial Locations

Locations (64)

West China Hospital Si Chuan University

🇨🇳

Chengdu, China

Nanfang Hospital of Southern Medical Hospital

🇨🇳

Guangzhou, China

Sheba Medical Center

🇮🇱

Ramat Gan, Israel

University Hospitals Plymouth NHS Trust

🇬🇧

Plymouth, United Kingdom

City of Hope

🇺🇸

Duarte, California, United States

University of California Irvine Medical Center

🇺🇸

Orange, California, United States

University of California San Francisco

🇺🇸

San Francisco, California, United States

St Francis Hospital & Health Centers Indiana Blood and Marrow Transplantation

🇺🇸

Indianapolis, Indiana, United States

Norton Cancer Institute

🇺🇸

Louisville, Kentucky, United States

Massachusetts General Hospital

🇺🇸

Boston, Massachusetts, United States

Dana Farber Cancer Institute

🇺🇸

Boston, Massachusetts, United States

Karmanos Cancer Institute

🇺🇸

Detroit, Michigan, United States

Start Midwest

🇺🇸

Grand Rapids, Michigan, United States

Montefiore Medical Center

🇺🇸

Bronx, New York, United States

NYU Langone Medical Center

🇺🇸

New York, New York, United States

Oregon Health And Science University

🇺🇸

Portland, Oregon, United States

Maine Health

🇺🇸

Providence, Rhode Island, United States

University of Tennessee Medical Center

🇺🇸

Knoxville, Tennessee, United States

Houston Methodist Hospital

🇺🇸

Houston, Texas, United States

MD Anderson

🇺🇸

Houston, Texas, United States

San Antonio Methodist TX Transplant Physicians Group

🇺🇸

San Antonio, Texas, United States

Virginia Commonwealth University

🇺🇸

Richmond, Virginia, United States

Swedish Cancer Institute

🇺🇸

Seattle, Washington, United States

Medical College of WI at Froedtert

🇺🇸

Milwaukee, Wisconsin, United States

Monash Medical Centre

🇦🇺

Clayton, Australia

Royal Perth Hospital

🇦🇺

Perth, Australia

Gold Coast University Hospital

🇦🇺

Southport, Australia

Hopital Jean Minjoz

🇫🇷

Besancon, France

Institut Paoli Calmettes

🇫🇷

Marseille, France

CHU de Nantes hotel Dieu

🇫🇷

Nantes Cedex 1, France

Hopital Saint Louis

🇫🇷

Paris, France

Hopital trousseau- APHP

🇫🇷

Paris, France

Centre Hospitalier Universitaire (CHU) de Bordeaux Hopital HautLeveque Centre Francois Magendie

🇫🇷

Pessac, France

CHU Lyon Sud

🇫🇷

Pierre Benite, France

Institut de Cancerologie Strasbourg Europe ICANS

🇫🇷

Strasbourg, France

Institut Universitaire du Cancer Toulouse Oncopole

🇫🇷

Toulouse, France

CHU Bretonneau

🇫🇷

Tours cedex, France

CHRU Nancy Brabois

🇫🇷

Vandoeuvre les Nancy, France

Gustave Roussy

🇫🇷

Villejuif, France

Carmel Medical Center

🇮🇱

Haifa, Israel

Hadassah University Hospita Ein Kerem

🇮🇱

Jerusalem, Israel

Tel Aviv Sourasky Medical Center

🇮🇱

Tel Aviv Yafo, Israel

Fukushima Medical University Hospital

🇯🇵

Fukushima, Japan

Nagoya University Hospital

🇯🇵

Nagoya, Japan

Hokkaido University Hospital

🇯🇵

Sapporo, Japan

NTT Medical Center Tokyo

🇯🇵

Tokyo, Japan

University of Fukui Hospital

🇯🇵

Yoshida, Japan

Seoul National University Hospital

🇰🇷

Seoul, Korea, Republic of

Asan Medical Center

🇰🇷

Seoul, Korea, Republic of

Samsung Medical Center

🇰🇷

Seoul, Korea, Republic of

Hosp Univ Vall D Hebron

🇪🇸

Barcelona, Spain

Hosp Clinic de Barcelona

🇪🇸

Barcelona, Spain

Hosp. Gral. Univ. Gregorio Maranon

🇪🇸

Madrid, Spain

Hosp Univ Fund Jimenez Diaz

🇪🇸

Madrid, Spain

Clinica Univ. de Navarra

🇪🇸

Pamplona, Spain

Hosp Clinico Univ de Salamanca

🇪🇸

Salamanca, Spain

Hosp. Virgen Del Rocio

🇪🇸

Sevilla, Spain

Hosp. Clinico Univ. de Valencia

🇪🇸

Valencia, Spain

China Medical University Hospital

🇨🇳

Taichung, Taiwan

National Cheng Kung University Hospital

🇨🇳

Tainan, Taiwan

National Taiwan University Hospital

🇨🇳

Taipei, Taiwan

Guys and St Thomas NHS Foundation Trust

🇬🇧

London, United Kingdom

The Christie Nhs Foundation Trust

🇬🇧

Manchester, United Kingdom

Oxford University Hospitals NHS Trust

🇬🇧

Oxfordshire, United Kingdom

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