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Efficacy and Safety of Nemtabrutinib (MK-1026) in Participants With Hematologic Malignancies (MK-1026-003)

PHASE2RECRUITING

The purpose of this study is to evaluate the safety and efficacy of nemtabrutinib (formerly ARQ 531) in participants with hematologic malignancies of chronic lymphocytic leukemia (CLL)/ small lymphocytic lymphoma (SLL), Richter's transformation, marginal zone lymphoma (MZL), mantle cell lymphoma (MCL), follicular lymphoma (FL), and Waldenström's macroglobulinemia (WM).

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Study details:

This study will be performed in 2 parts: Dose Escalation and Confirmation (Part 1) and Cohort Expansion (Part 2). Following determination of the recommended phase 2 dose (RP2D) in Part 1, the study plans to proceed with Part 2 using 8 disease-specific expansion cohorts (Cohorts A to H).

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Eligibility criteria

Researchers look for people who fit a certain description, called eligibility criteria. See if you qualify.

Inclusion criteria

  • Has an Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2 within 7 days prior to allocation
  • Has a life expectancy of at least 3 months, based on the investigator assessment
  • Has the ability to swallow and retain oral medication
  • Participants who are Hepatitis B surface antigen (HBsAg)-positive are eligible if they have received Hepatitis B virus (HBV) antiviral therapy for at least 4 weeks and have undetectable HBV viral load prior to randomization
  • Participants with history of Hepatitis C virus (HCV) infection are eligible if HCV viral load is undetectable at screening
  • Has adequate organ function
  • Male participants agree to refrain from donating sperm and agree to either remain abstinent from penile-vaginal intercourse as their preferred and usual lifestyle OR agree to use contraception, during the intervention period and for at least the time required to eliminate the study intervention after last dose of study intervention
  • Female participants assigned female sex at birth who are not pregnant or breastfeeding are eligible to participate if not a participant of childbearing potential (POCBP), or if a POCBP they either use a contraceptive method that is highly effective OR remain abstinent from penile-vaginal intercourse as their preferred and usual lifestyle during the intervention period and for at least to eliminate study intervention after the last dose of study intervention
  • Participants with HIV are eligible if they meet all of the following: the CD4 count is >350 cells/uL at screening, the HIV viral load is below the detectable level, are on a stable ART regimen for at least 4 weeks prior to study entry, and are compliant with their ART
  • Has a confirmed diagnosis of CLL/SLL with at least 2 lines of prior therapy (Part 1 only)
  • Part 2 Cohort A: CLL/SLL participants who are relapsed or refractory to prior therapy with a covalent, irreversible Bruton's tyrosine kinase inhibitor (BTKi), and a B-cell lymphoma 2 inhibitor (BCL2i). CLL participants must have received and failed, been intolerant to, or determined by their treating physician to be a poor phosphoinositide 3-kinase inhibitor (PI3Ki) candidate or ineligible for a PI3Ki per local guidelines
  • Part 2 Cohort B: CLL/SLL participants who are relapsed or refractory following at least 1 line of prior therapy and are BTKi treatment naive
  • Part 2 Cohort C: CLL/SLL participants with 17p deletion or tumor protein p53 (TP53) mutation who are relapsed or refractory following at least 1 line of prior therapy
  • Part 2 Cohort J: CLL/SLL participants whose disease relapsed or was refractory to prior therapy with a covalent/irreversible BTKi and BCL2i
  • Has active disease for CLL/SLL clearly documented to initiate therapy
  • Has evaluable core or excisional lymph node biopsy for biomarker analysis from an archival or newly obtained biopsy or bone marrow aspirate at Screening (optional for participants enrolling in Part 1)
  • Has a confirmed diagnosis of and meets the following prior therapy requirements: Participants with Richter's transformation who are relapsed or refractory following at least 1 line of prior therapy (Cohort D)
  • Participants with pathologically confirmed MCL, documented by either overexpression of cyclin D1 or t(11;14), who are relapsed or are refractory to chemoimmunotherapy and a covalent irreversible BTKi (Cohort E)
  • Participants with MZL (including splenic, nodal, and extra nodal MZL) who are relapsed or refractory to chemoimmunotherapy and a covalent irreversible BTKi (Cohort F)
  • Participants with FL who are relapsed or refractory to chemoimmunotherapy, immunomodulatory agents (i.e. lenalidomide plus rituximab) (Cohort G)
  • Have measurable disease defined as at least 1 lesion that can be accurately measured in at least 2 dimensions with spiral CT scan
  • Has a lymph node biopsy for biomarker analysis from an archival or newly obtained biopsy or bone marrow aspirate (Cohort D) at Screening
  • Part 2 (Cohort H): confirmed diagnosis of WM; participants who are relapsed or refractory to standard therapies for WM including chemoimmunotherapy and a covalent irreversible BTKi
  • Has active disease defined as 1 of the following: systemic symptoms, physical findings, laboratory abnormalities, coexisting disease
  • Has measurable disease, satisfying any of the following: at least 1 lesion that can be accurately measured in at least 2 dimensions with spiral CT scan (minimum measurement must be >15 mm in the longest diameter or >10 mm in the short axis); IgM ≥450 mg/dL; or bone marrow infiltration of 10%
  • Has fresh bone marrow aspirate or a lymph node biopsy for biomarker analysis at Screening or a lymph node biopsy from an archival
  • Exclusion criteria

  • Has active HBV/HCV infection (Part 1 and Part 2)
  • Has a history of malignancy ≤3 years before providing documented informed consent. Participants with basal cell carcinoma of skin, squamous cell carcinoma of skin, or carcinoma in situ (eg, breast carcinoma, cervical cancer in situ) that have undergone potential curative therapy are not excluded. Participants with low-risk, early-stage prostate cancer (T1-T2a, Gleason score ≤6, and prostate-specific antigen <10 ng/mL) either treated with definitive intent or untreated in active surveillance with SD are not excluded
  • Has active central nervous system (CNS) disease
  • Has an active infection requiring systemic therapy
  • Has received prior systemic anti-cancer therapy within 4 weeks prior to allocation
  • Is currently participating in or has participated in a study of an investigational agent or has used an investigational device within 4 weeks prior to the first dose of study intervention
  • Has any clinically significant gastrointestinal abnormalities that might alter absorption
  • History of severe bleeding disorders
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    Eligibility

    Age eligible for study : 18 and older

    Healthy volunteers accepted : No

    Gender eligible for study: All

    Things to know

    Study dates

    Study start: 2021-04-05

    Primary completion: 2027-03-19

    Study completion finish: 2027-03-19

    study type

    Study type

    TREATMENT

    phase

    Phase

      PHASE2

    trial

    Trial ID

    NCT04728893

    Intervention or treatment

    DRUG: Nemtabrutinib

    Conditions

    • Hematologic Malignancies
    • Waldenstroms Macroglobulinaemia
    • Non-Hodgkins Lymphoma
    • Chronic Lymphocytic Leukaemia
    Image related to Hematologic Malignancies
    • Condition: Hematologic Malignancies, Waldenstroms Macroglobulinaemia and more

    • DRUG: Nemtabrutinib

    • Sydney, New South Wales, Australia and more

    • Sponsor: Merck Sharp & Dohme LLC

    Find a site

    Closest Location:

    Nepean Hospital-Nepean Cancer Care Centre ( Site 0204)

    Research sites nearby

    Select from list below to view details:

    • Nepean Hospital-Nepean Cancer Care Centre ( Site 0204)

      Sydney, New South Wales, Australia

    • Box Hill Hospital ( Site 0203)

      Box Hill, Victoria, Australia

    • Sir Charles Gairdner Hospital ( Site 0200)

      Nedlands, Western Australia, Australia

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    Study Plan

    This section provides details of the study plan, including how the study is designed and what the study is measuring.

    How is the study designed?

    Participant Group/ArmIntervention/Treatment
    EXPERIMENTAL: Nemtabrutinib
    • Participants receive nemtabrutinib orally once daily (QD) until progressive disease (PD) or discontinuation.
    DRUG: Nemtabrutinib
    • Nemtabrutinib tablets administered PO QD.

    What is the study measuring?

    Primary outcome

    Primary Outcome MeasurePrimary Outcome DescriptionPrimary Outcome Time Frame
    Part 1: Number of participants experiencing dose-limiting toxicities (DLTs)DLTs will be defined as toxicities observed during the first 2 cycles (8 weeks) of Part 1 and include: Grade ≥3 nonhematologic toxicity (except Grade 3 nausea, vomiting, diarrhea, rash, fatigue, and uncontrolled hypertension which will not be considered a DLT unless lasting ≥72 hours despite optimal supportive care); Grade 4 hematologic toxicity lasting \>7 days (except Grade 3 lymphocytosis, Grade 4 platelet count decreased of any duration, or Grade 3 platelet count decreased if associated with bleeding); any Grade 3 or Grade 4 nonhematologic laboratory abnormality if values result in drug-induced liver injury, or medical intervention is required, or the abnormality leads to hospitalization, or the abnormality persists for \>1 week (with exceptions); missing \>25% of nemtabrutinib doses as a result of drug-related adverse events (AEs) during the first 2 cycles (8 weeks); Grade 5 toxicity.Up to ~56 days (Cycles 1-2, cycle = 28 days)
    Part 1: Number of participants experiencing adverse events (AEs)An AE is any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants experiencing AEs will be reported for Part 1.Up to ~71 months
    Part 1: Number of participants discontinuing study treatment due to AEsAn AE is any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants discontinuing study treatment due to an AE will be reported for Part 1.Up to ~42 months
    Part 2: Objective Response Rate (ORR) per International Workshop on Chronic Lymphocytic Leukemia (iwCLL) criteria 2018 as assessed by independent central review (ICR)ORR per iwCLL 2018 criteria is defined as the percentage of participants achieving a complete response (CR), complete response with incomplete bone marrow recovery (CRi), nodular partial response (nPR), or partial response (PR). CR is defined as meeting the following criteria: no lymph nodes \>1.5 cm, spleen size \<13 cm, liver normal; no constitutional symptoms, normal lymphocyte count, platelets ≥100 x 10\^9/L; hemoglobin ≥11 g/dL; and normocellular marrow (no CLL cells or B lymphoid nodules). CRi is defined as meeting CR criteria but with hypocellular bone marrow. nPR is defined as having features of CR but with lymphoid nodules in the marrow. PR is defined as ≥50% decrease in ≥2 of the following: lymph nodes, liver and/or spleen size, lymphocytes PLUS ≥1 of the following met: platelets ≥100 x 10\^9/L or ≥50% increase from screening, hemoglobin \>11 g/dL or ≥50% increase from screening, CLL cells or B lymphoid nodules in marrow.Up to ~61 months
    Part 2: ORR per Lugano criteria 2014 as assessed by ICRORR per Lugano criteria 2014 is defined as the percentage of participants achieving a CR or PR. CR defined as EITHER CR by imaging (computed tomography \[CT\]): all lymph nodes normal (none ≥15 mm) and normal liver and spleen OR complete metabolic response (CMR): score of 1, 2 or 3 on the 5-point scale assessing fluorodeoxyglucose (FDG) metabolic activity in lymphomatous lesions (ranging from 1=no uptake above background to 5=uptake markedly higher than liver) AND bone marrow (BM) normal by morphology. PR defined as EITHER PR by imaging (CT) with ≥50% decrease in the sum of the product of diameters \[SPD\] of target lesions, no worsening of nontarget lesions, no new lesions and ≥50% spleen abnormal portion OR Partial Metabolic Response (PMR) with score of 4 or 5 on the FDG 5-point scale (with no new lesions) and decreased overall uptake AND residual BM abnormalities; OR CR by imaging with residual BM abnormalities; OR PR by imaging without residual BM abnormalities.Up to ~61 months
    Part 2: ORR per International Workshop on Waldenström's Macroglobulinemia (IWWM) criteria 2014 as assessed by ICRORR per IWWM criteria 2014 is defined as the percentage of participants achieving a CR, very good partial response (VGPR), or PR. CR is defined as all lymph nodes are normal in size (none ≥15 mm), liver and spleen normal in size, serum immunoglobulin M (IgM) values in the normal range, disappearance of monoclonal protein by immunofixation (confirmation needed with a second immunofixation at any subsequent timepoint), and no histological evidence of BM involvement. VGPR is defined as ≥50% decrease from baseline in SPD of lymph nodes (if abnormal at baseline), ≥50% decrease from baseline in the abnormal portion of the spleen (if previously abnormal), and ≥90% decrease from baseline in serum IgM, or serum IgM values in normal range. PR is defined as ≥50% decrease from baseline in SPD of lymph nodes (if abnormal at baseline), ≥50% decrease from baseline in serum IgM, and ≥50% decrease from baseline in the abnormal portion of the spleen (if previously abnormal).Up to ~71 months

    Secondary outcome

    Secondary Outcome MeasureSecondary Outcome DescriptionSecondary Outcome Time Frame
    Part 1: Area Under the Curve (AUC) of NemtabrutinibBlood samples will be obtained at designated time points during Part 1 for the assessment of nemtabrutinib AUC (Day 1 of Cycles 1 and 2: Pre-dose, 2, 4, 6, 8, and 24 hours post-dose; Day 1 of Cycle 3: pre-dose and 2, 4, and 6 hours post-dose \[up to \~57 days\]). Each cycle is 28 days.At designated time points (up to ~57 days)
    Part 1: Minimum Concentration (Cmin) of NemtabrutinibBlood samples will be obtained at designated time points during Part 1 for the assessment of nemtabrutinib Cmin (Day 1 of Cycles 1 and 2: Pre-dose, 2, 4, 6, 8, and 24 hours post-dose; Day 1 of Cycle 3: pre-dose and 2, 4, and 6 hours post-dose \[up to \~57 days\]). Each cycle is 28 days.At designated time points (up to ~57 days)
    Part 1: Maximum Concentration (Cmax) of NemtabrutinibBlood samples will be obtained at designated time points during Part 1 for the assessment of nemtabrutinib Cmax (Day 1 of Cycles 1 and 2: Pre-dose, 2, 4, 6, 8, and 24 hours post-dose; Day 1 of Cycle 3: pre-dose and 2, 4, and 6 hours post-dose \[up to \~57 days\]). Each cycle is 28 days.At designated time points (up to ~57 days)
    Part 1: ORR per iwCLL criteria 2018 as assessed by ICRORR per iwCLL 2018 criteria is defined as the percentage of participants achieving a CR, CRi, nPR, or PR. CR is defined as meeting the following criteria: no lymph nodes \>1.5 cm, spleen size \<13 cm, liver normal; no constitutional symptoms, normal lymphocyte count, platelets ≥100 x 10\^9/L; hemoglobin ≥11 g/dL; and normocellular marrow (no CLL cells or B lymphoid nodules). CRi is defined as meeting CR criteria but with hypocellular bone marrow. nPR is defined as having features of CR but with lymphoid nodules in the marrow. PR is defined as ≥50% decrease in ≥2 of the following: lymph nodes, liver and/or spleen size, lymphocytes PLUS ≥1 of the following met: platelets ≥100 x 10\^9/L or ≥50% increase from screening, hemoglobin \>11 g/dL or ≥50% increase from screening, CLL cells or B lymphoid nodules in marrow.Up to ~71 months
    Part 1: Duration of Response (DOR) per iwCLL criteria 2018 as assessed by ICRFor participants with CR, CRi, nPR, or PR per iwCLL 2018 criteria, DOR is defined as the time from the first documented evidence of objective response until PD or death due to any cause, whichever occurs first. CR is defined as meeting the following criteria: no lymph nodes \>1.5 cm, spleen size \<13 cm, liver normal; no constitutional symptoms, normal lymphocyte count, platelets ≥100 x 10\^9/L; hemoglobin ≥11 g/dL; and normocellular marrow (no CLL cells or B lymphoid nodules). CRi is defined as meeting CR criteria but with hypocellular bone marrow. nPR is defined as having features of CR but with lymphoid nodules in the marrow. PR is defined as ≥50% decrease in ≥2 of the following: lymph nodes, liver and/or spleen size, lymphocytes PLUS ≥1 of the following met: platelets ≥100 x 10\^9/L or ≥50% increase from screening, hemoglobin \>11 g/dL or ≥50% increase from screening, CLL cells or B lymphoid nodules in marrow.Up to ~71 months
    Part 2: Number of participants experiencing AEsAn AE is any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants experiencing AEs will be reported for Part 2.Up to ~61 months
    Part 2: Number of participants discontinuing study treatment due to AEsAn AE is any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants discontinuing study treatment due to an AE will be reported for Part 2.Up to ~42 months
    Part 2: AUC of NemtabrutinibBlood samples will be obtained at designated time points during Part 2 for the assessment of nemtabrutinib AUC (Day 1 of Cycles 1, 2, and 3: Pre-dose, 2, 4, 6, hours post-dose \[up to \~57 days\]). Each cycle is 28 days.At designated time points (up to ~57 days)
    Part 2: Cmin of NemtabrutinibBlood samples will be obtained at designated time points during Part 2 for the assessment of nemtabrutinib Cmin (Day 1 of Cycles 1, 2, and 3: Pre-dose, 2, 4, 6, hours post-dose \[up to \~57 days\]). Each cycle is 28 days.At designated time points (up to ~57 days)
    Part 2: Cmax of NemtabrutinibBlood samples will be obtained at designated time points during Part 2 for the assessment of nemtabrutinib Cmax (Day 1 of Cycles 1, 2, and 3: Pre-dose, 2, 4, 6, hours post-dose \[up to \~57 days\]). Each cycle is 28 days.At designated time points (up to ~57 days)
    Part 2: DOR per iwCLL criteria 2018 as assessed by ICRFor participants with CR, CRi, nPR, or PR per iwCLL 2018 criteria, DOR is defined as the time from the first documented evidence of objective response until disease progression or death due to any cause, whichever occurs first. CR is defined as meeting the following criteria: no lymph nodes \>1.5 cm, spleen size \<13 cm, liver normal; no constitutional symptoms, normal lymphocyte count, platelets ≥100 x 10\^9/L; hemoglobin ≥11 g/dL; and normocellular marrow (no CLL cells or B lymphoid nodules). CRi is defined as meeting CR criteria but with hypocellular bone marrow. nPR is defined as having features of CR but with lymphoid nodules in the marrow. PR is defined as ≥50% decrease in ≥2 of the following: lymph nodes, liver and/or spleen size, lymphocytes PLUS ≥1 of the following met: platelets ≥100 x 10\^9/L or ≥50% increase from screening, hemoglobin \>11 g/dL or ≥50% increase from screening, CLL cells or B lymphoid nodules in marrow.Up to ~61 months
    Part 2: DOR per Lugano criteria 2014 as assessed by ICRFor participants with CR or PR per Lugano criteria 2014, DOR is defined as the time from the first documented evidence of objective response until PD or death due to any cause, whichever occurs first. CR defined as EITHER CR by imaging (CT): all lymph nodes normal (none ≥15 mm) and normal liver and spleen OR CMR: score of 1, 2 or 3 on the 5-point scale assessing FDG metabolic activity in lymphomatous lesions (ranging from 1=no uptake above background to 5=uptake markedly higher than liver and/or new lesions) AND BM normal by morphology. PR defined as EITHER PR by imaging (CT) with ≥50% decrease in the SPD of target lesions, no worsening of nontarget lesions, no new lesions and ≥50% spleen abnormal portion OR PMR with score of 4 or 5 on the FDG 5-point scale (with no new lesions) and decreased overall uptake AND residual BM abnormalities; OR CR by imaging with residual BM abnormalities; OR PR by imaging without residual BM abnormalities.Up to ~61 months
    Part 2: DOR per IWWM criteria 2014 as assessed by ICRFor participants with CR, VGPR, or PR per IWWM criteria 2014, DOR defined as the time from first documented evidence of objective response until PD or death due to any cause, whichever occurs first. CR defined as all lymph nodes normal in size (none ≥15 mm), liver and spleen normal in size, serum IgM values in normal range, disappearance of monoclonal protein by immunofixation (confirmation needed with second immunofixation at any subsequent timepoint), and no histological evidence of BM involvement. VGPR defined as ≥50% decrease from baseline in SPD of lymph nodes (if abnormal at baseline), ≥50% decrease from baseline in abnormal portion of the spleen (if previously abnormal), and ≥90% decrease from baseline in serum IgM, or serum IgM values in normal range. PR is defined as ≥50% decrease from baseline in SPD of lymph nodes (if abnormal at baseline), ≥50% decrease from baseline in serum IgM, and ≥50% decrease from baseline in abnormal portion of the spleen (if previously abnormal).Up to ~61 months

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    References

    Clinical Trials Gov: Efficacy and Safety of Nemtabrutinib (MK-1026) in Participants With Hematologic Malignancies (MK-1026-003)

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