A study of bleximenib in combination with acute myeloid leukemia-directed therapies

ISRCTN ISRCTN12278036
DOI https://doi.org/10.1186/ISRCTN12278036
EudraCT/CTIS number 2021-003999-14
IRAS number 1005413
ClinicalTrials.gov number NCT05453903
Secondary identifying numbers 75276617ALE1002, IRAS 1005413, CPMS 52246
Submission date
07/06/2023
Registration date
17/07/2023
Last edited
05/02/2025
Recruitment status
Recruiting
Overall study status
Ongoing
Condition category
Cancer
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English Summary

Background and study aims
Leukaemia (cancer of the white blood cells) is diagnosed as acute when it progresses quickly and aggressively and usually requires immediate treatment. Acute myeloid leukaemia (AML) affects the myeloid cells that fight bacterial infections and other conditions. KMT2A or NPM1 gene alterations can be associated with AML. Treatment options for AML are limited, survival rates are poor, and many patients are ineligible for standard chemotherapy treatments due to toxicity. The study purpose is to determine the recommended phase II study dose(s) of bleximenib in combination with AML-directed therapies and further to evaluate the safety and tolerability of bleximenib in combination with AML-directed therapies at these dose(s).

Who can participate?
Male and female adult participants with AML, relapsed/refractory or newly diagnosed, with either KMT2A or NPM1 gene alterations.

What does the study involve?
AML patients will be enrolled into 1 of 3 study arms. Initially, patients with relapsed/refractory AML will be enrolled (Arm A). Once it has been determined that the combination treatment is safe in these patients, patients with newly diagnosed AML will be enrolled based on eligibility for intensive chemotherapy: ineligible (Arm B) or eligible (Arm C). Bleximenib will be given once or twice daily on a 28-day cycle, with cohort-specific AML-directed therapies.

The study has a screening (up to 28 days), treatment, and follow-up phase. The treatment phase will continue for as long as participants receive benefits from the combination treatment and/or until their participation is ended for any reason. While taking study treatment and during follow-up, participants will come to the clinic for health exams and tests.

The follow-up period will depend on the response to the study treatment and can last up to 1 year.

What are the possible benefits and risks of participating?
Taking bleximenib in combination with AML-directed therapies may improve AML. However, this cannot be guaranteed because bleximenib is still under investigation as a treatment and it is not known whether the combination study treatment will work. It is also possible that known effects from the individual medications may worsen when given in combination.

Participants may experience some benefit from participation in the study that is not due to receiving study treatment but due to regular visits and assessments monitoring overall health.

Participation may help other people with myeloid in the future.

The expected risks for bleximenib are based on how the drug works and the results from laboratory studies and people who have received bleximenib as a single agent. These may include:
1. Blood cell count effects
2. Changes to heart rhythm
3. Impact on male fertility
4. Tumour Lysis Syndrome (when large numbers of leukaemia cells die in a short period of time)
5. Differentiation Syndrome (DS involves a large, rapid release of cytokines (immune substances) from leukemia cells after treatment with anticancer drugs)
6. Infections
7. Allergic reactions

There may also be other potential risks associated with bleximenib in combination with AML directed therapies. Side effects from the drugs or procedures used in this study may be mild to severe and even life-threatening, and they can vary from person to person. All possible discomforts, side effects, and risks related to the study treatment and procedures will be explained in full in the participant information sheet and discussed during the informed consent process. To minimise the risk associated with taking part in the study, participants are frequently evaluated for any side effects. Participants are educated to report any such events to the study doctor who will provide appropriate medical care. Any serious side effects that are reported to the sponsor are thoroughly reviewed by the global study team. The study doctor will tell participants as soon as possible about any new information that might make them change their mind about being in the study, such as new risks. There are no costs to participants to be in the study. The sponsor will pay for the study treatment and tests that are part of the study. The participant will receive reasonable reimbursement for study-related costs (e.g., travel/parking fees/occasional meals).

Where is the study run from?
Multiple healthcare locations around the world

When is the study starting and how long is it expected to run for?
February 2022 to February 2026

Who is funding the study?
Janssen Research & Development, LLC (UK)

Who is the main contact?
EMarwood@ITS.JNJ.com

Contact information

Dr Emma Searle
Principal Investigator

The Christie NHS Foundation Trust
Department of Haematology
Manchester
M20 4BX
United Kingdom

Phone +44 (0)161 446 3093
Email helen.kay3@nhs.net
Dr Ellice Marwood
Public

Senior Local Trial Manager, ED&CP, Janssen UK
50-100 Holmers Farm Way
High Wycombe
HP12 4DP
United Kingdom

Email EMarwood@ITS.JNJ.com
Dr Sponsor Contact
Public

Medical Information and Product Information Enquiry
-
-
United Kingdom

Phone +44 (0)800 731 8450; (0)1494 567444
Email medinfo@its.jnj.com

Study information

Study designMulticohort open-label non-randomized multicenter phase Ib study
Primary study designInterventional
Secondary study designNon randomised study
Study setting(s)Hospital
Study typeTreatment, Safety
Participant information sheet No participant information sheet available
Scientific titleA phase Ib study of bleximenib in combination with AML-directed therapies for participants with acute myeloid leukemia harboring KMT2A or NPM1 alterations
Study hypothesisThe primary objectives of this study are to determine the recommended Phase II dose(s) (RP2Ds) of bleximenib in combination with AML-directed therapies, as well as the safety and tolerability of bleximenib in combination at the RP2D(s). The secondary objectives of this study are to assess the pharmacokinetics (PK) and pharmacodynamics (PD) of bleximenib in combination with AML-directed therapies and to assess the preliminary clinical activity of bleximenib when given in combination with AML-directed therapies.
Ethics approval(s)

Approved 01/08/2022, North West - Greater Manchester (GM) Central Research Ethics Committee (3rd Floor, Barlow House, 4 Minshull Street, Manchester, M1 3DZ, United Kingdom; +44 (0)2071048328, (0)2071048131; gmcentral.rec@hra.nhs.uk), ref: 22/NW/0176

ConditionAcute myeloid leukemia
InterventionAML patients will be enrolled into 1 of 3 study arms. Initially, patients with relapsed/refractory AML will be enrolled (Arm A). Once it has been determined that the combination treatment is safe in these patients, patients with newly diagnosed AML will be enrolled based on eligibility for intensive chemotherapy: ineligible (Arm B) or eligible (Arm C). Bleximenib will be given orally once or twice daily on a 28-day cycle, with cohort-specific AML-directed therapies. The dose and frequency of the dose are variable. The study has a screening (up to 28 days), treatment, and follow-up phase. The treatment phase will continue for as long as participants receive benefits from the combination treatment and/or until their participation is ended for any reason. While taking study treatment and during follow-up, participants will come to the clinic for health exams and tests. The follow-up period will depend on the response to the study treatment and can last up to 1 year. Duration is until completion of End of Trial (EOT) visit, or sooner if meets discontinuation criteria.
Intervention typeDrug
Pharmaceutical study type(s)Pharmacokinetic, Pharmacodynamic, Dose response
PhasePhase I
Drug / device / biological / vaccine name(s)Bleximenib, venetoclax, azacitidine, idarubicin, daunorubicin, cytarabine
Primary outcome measureThe following primary outcome measures will be measured by clinical assessment of adverse events (including dose-limiting toxicities) by the clinical Investigator:
1. Number of Participants with Adverse Events (AEs) up to 2 Years
2. Number of Participants with Adverse Events (AEs) by Severity up to 2 Years
3. Number of Participants with Dose-limiting Toxicity (DLT) up to the end of Cycle 1 (28 days)

Secondary outcome measures1. Plasma Concentration of bleximenib measured using a pharmacological chemical assay up to 2 Years
2. Number of Participants with Depletion of Leukemic Blasts up to 2 Years
3. Number of Participants with Differentiation of Leukemic Blasts up to 2 Years
4. Changes in Expression of Menin-histone-lysine N-methyltransferase 2A (KMT2A) Target Genes measured using RNA nanostring technology up to 2 Years
5. Percentage of Participants who Achieve Complete Remission (CR) up to 2 Years
6. Percentage of Participants who Achieve Complete Remission with Partial Hematologic Recovery (CRh) up to 2 Years
7. Percentage of Participants who Achieve Complete Remission with Incomplete Hematologic Recovery (CRi) up to 2 Years
8. Percentage of Participants who Achieved Overall Response up to 2 Years
9. Duration of response up to 2 Years
10. Time to Response up to 2 Years
Overall study start date03/02/2022
Overall study end date02/02/2026

Eligibility

Participant type(s)Patient
Age groupMixed
Lower age limit18 Years
Upper age limit100 Years
SexBoth
Target number of participants150
Participant inclusion criteria1. Diagnosis of AML according to World Health Organization (WHO) 2016 criteria:
1.1. De novo or secondary AML
1.2. Relapsed /refractory (Arm A)
1.3. Harboring NPM1 / KMT2A alterations
2. Pretreatment clinical laboratory values meeting the following criteria -listed below: White blood cell (WBC) count: less than or equal to <=25 x 10^9 per liter (/L), adequate liver and renal function
3. ECOG performance status grade of 0, 1 or 2
4. A woman 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
5. Must sign an informed consent form (ICF) indicating participant understands the purpose of the study and procedures required for the study and is willing to participate in the study.
6. Willing and able to adhere to the prohibitions and restrictions specified in this protocol
Participant exclusion criteria1. Acute promyelocytic leukemia according to WHO 2016 criteria
2. Leukemic involvement of the central nervous system
3. Recipient of solid organ transplant
4. Cardiovascular disease that is uncontrolled, increases the risk for Torsades de Pointes or that was diagnosed within 6 months prior to the first dose of study treatment including, but not limited to:
4.1. Myocardial infarction
4.2. Severe or unstable angina
4.3. Clinically significant cardiac arrhythmias, including bradycardia (less than [<] 50 beats per minute)
4.4. Uncontrolled (persistent) hypertension: (example, blood pressure greater than [>] 140/90 millimeters of mercury [mm Hg]
4.5. Acute neurologic events such as stroke or transient ischemic attack, intracranial or subarachnoid hemorrhage, intracranial trauma
4.6. Venous thromboembolic events (for example, pulmonary embolism) within 1 month prior to the first dose of study treatment (uncomplicated Grade less than or equal to [≤]2 deep vein thrombosis is not considered exclusionary)
4.7. Congestive heart failure (NYHA class III to IV); (h) Pericarditis or clinically significant pericardial effusion
4.8. Myocarditis
4.9. Endocarditis
4.10. Clinically significant hypokalemia, hypomagnesemia, hypocalcemia (corrected for hypoalbuminemia)
5. Any toxicity (except for alopecia, stable peripheral neuropathy, thrombocytopenia, neutropenia, anemia) from previous anticancer therapy that has not resolved to baseline or to grade 1 or less
6. Pulmonary compromise that requires the need for supplemental oxygen use to maintain adequate oxygenation
Recruitment start date04/10/2022
Recruitment end date25/11/2025

Locations

Countries of recruitment

  • Australia
  • England
  • France
  • Germany
  • Italy
  • Spain
  • United Kingdom
  • United States of America

Study participating centres

The Christie NHS Foundation Trust
550 Wilmslow Road
Withington
Manchester
M20 4BX
United Kingdom
University College London Hospitals NHS Foundation Trust
250 Euston Road
London
NW1 2PG
United Kingdom
Azienda Ospedaliero-Universitaria di Bologna – IRCCS
Policlinico S. Orsola-Malpighi, Unità Operativa di Ematologia – Pad. 8, Via Giuseppe Massarenti, 9
Bologna
40138
Italy
Universitätsklinikum Dresden
Fetscherstr. 74
Dresden
01307
Germany
Institut Universitaire du Cancer de Toulouse-Oncopole (IUCT-O)
1 avenue Irène Joliot-Curie
Toulouse
31059
France
Clinica Universidad de Navarra
Avda. Pio XII, 36
Pamplona
31008
Spain
Monash Medical Centre
246 Clayton Road
Melbourne
3168
Australia
Novant Health Forsyth Medical Center
3333 Silas Creek Parkway
Winston-Salem
27103
United States of America
Oxford University Hospitals NHS Foundation Trust
Churchill Hospital
Old Road
Headington
Oxford
OX3 7LE
United Kingdom

Sponsor information

Janssen Pharmaceutica NV
Industry

Division of Janssen Research and Development
Turnhoutseweg 30
Beerse
None available
Belgium

Phone +32 1460 2111
Email prderacta@prdgb.jnj.com

Funders

Funder type

Industry

Janssen Research and Development
Private sector organisation / For-profit companies (industry)
Alternative name(s)
Janssen R&D, Janssen Research & Development, Janssen Research & Development, LLC, Janssen Research & Development LLC, Janssen Pharmaceutical Companies of Johnson & Johnson, Research & Development at Janssen, JRD, J&J PRD
Location
United States of America

Results and Publications

Intention to publish date28/02/2027
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal
IPD sharing planThe data sharing policy of the Janssen Pharmaceutical Companies of Johnson & Johnson is available at www.janssen.com/clinical-trials/transparency. As noted on this site, requests for access to the study data can be submitted through Yale Open Data Access (YODA) Project site at yoda.yale.edu

Editorial Notes

05/02/2025: The public contact was changed.
09/09/2024: The following changes were made to the trial record:
1. All mentions of JNJ-75276617 were changed to bleximenib.
2. The study participating centre Oxford University Hospitals NHS Foundation Trust was added.
11/10/2023: Internal review.
20/09/2023: The following changes were made:
1. The participant information sheet is not available on request.
2. A sponsor Medical Information and Product Information Enquiry contact was added.
08/08/2023: Internal review.
13/07/2023: Trial's existence confirmed by Health Research Authority (HRA) (UK)