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NCT Number: NCT05624554

A Study of Nemtabrutinib vs Chemoimmunotherapy for Participants With Previously Untreated Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma (CLL/SLL) Without TP53 Aberrations (MK-1026-008, BELLWAVE-008)

Researchers are looking for new ways to treat people with chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL). CLL and SLL are types of blood cancer. Researchers want to know if people who take nemtabrutinib compared to those who take the standard treatments in this study will live longer without their cancer growing, spreading or returning (progression free survival).

Active, Not Recruiting

This study is active but is not currently recruiting participants.

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Key information

Conditions

Chronic Lymphocytic Leukemia Chronic Disease Disease Attributes Hematologic Diseases Hemic and Lymphatic Diseases Immune System Diseases Immunoproliferative Disorders Leukemia Leukemia, B-Cell Leukemia, Lymphocytic, Chronic, B-Cell Leukemia, Lymphoid Lymphatic Diseases Lymphoproliferative Disorders Neoplasms Neoplasms by Histologic Type Pathologic Processes Pathological Conditions, Signs and Symptoms Small Lymphocytic Lymphoma

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Royal Adelaide Hospital ( Site 1105), Adelaide, South Australia, Australia

Loading trial locations.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

The main inclusion and exclusion criteria include but are not limited to the following:

Inclusion criteria

  • Confirmed diagnosis of chronic lymphocytic leukemia (CLL)/ small lymphocytic lymphoma (SLL) and active disease clearly documented to have a need to initiate therapy
  • Has previously untreated CLL/SLL participants without tumor protein 53 (TP53) aberrations and documented 11q status and immunoglobulin heavy chain gene (IGHV) mutational status
  • The ability to swallow and retain oral medication

Exclusion criteria

  • Has active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection
  • Has gastrointestinal dysfunction that may affect drug absorption (eg, gastric bypass surgery, gastrectomy)
  • Has known additional malignancy that is progressing or has required active treatment within the past 3 years, except 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
  • Has history of severe bleeding disorders
  • Has not adequately recovered from major surgery or has ongoing surgical complications

Treatment and study plan

Nemtabrutinib

Drug

65 mg administered orally daily until disease progression, unacceptable toxicity, or discontinuation criteria met.

Other names: MK-1026, ARQ 531

Fludarabine

Drug

25 mg/m^2 administered via intravenous (IV) infusion on Days 1, 2, and 3 of each 28-day cycle up to 6 cycles.

Cyclophosphamide

Drug

250 mg/m^2 administered via IV infusion on Days 1, 2, and 3 of each 28-day cycle up to 6 cycles.

Bendamustine

Drug

Administered via IV infusion on Days 1 and 2 of each 28-day cycle up to 6 cycles. The first dose is given as 70 to 90 mg/m^2. Subsequent doses may be escalated up to 90 mg/m^2, if applicable and as per local guidelines.

Rituximab

Biological

Administered as an IV infusion on Day 1 of each 28-day cycle. The initial dose is 375 mg/m^2 (cycle 1) followed by 500 mg/m^2 for remaining cycles.

Other names: RITUXAN®/MabThera

Truxima

Biological

Administered as an IV infusion on Day 1 of each 28-day cycle. The initial dose is 375 mg/m^2 (cycle 1) followed by 500 mg/m^2 for remaining cycles.

Other names: Rituximab biosimilar

Ruxience

Biological

Administered as an IV infusion on Day 1 of each 28-day cycle. The initial dose is 375 mg/m^2 (cycle 1) followed by 500 mg/m^2 for remaining cycles.

Other names: Rituximab biosimilar

Riabni

Biological

Administered as an IV infusion on Day 1 of each 28-day cycle. The initial dose is 375 mg/m^2 (cycle 1) followed by 500 mg/m^2 for remaining cycles.

Other names: Rituximab biosimilar

Primary outcomes

  1. Progression-Free Survival (PFS) per International Workshop on Chronic Lymphocytic Leukemia (iwCLL) Criteria 2018 as Assessed by Blinded Independent Central Review (BICR)

    Time frame: Up to approximately 49 months

    PFS is defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurs first. PD is evaluated per International Workshop on Chronic Lymphocytic Leukemia (iwCLL) criteria 2018 as assessed by blinded independent central review (BICR).

Secondary outcomes

  1. Overall Survival (OS)

    Time frame: Up to approximately 94 months

    OS is defined as the time from randomization to death due to any cause.

  2. Objective Response Rate (ORR) per iwCLL Criteria 2018 as Assessed by BICR

    Time frame: Up to approximately 36 months

    ORR is defined as the percentage of participants with complete response (CR), complete response with an incomplete recovery of the participant's bone marrow (CRi), nodular partial response (nPR), or Partial response (PR), per iwCLL criteria 2018 as assessed by BICR.

  3. Time to Next Therapy (TTNT)

    Time frame: Up to approximately 94 months

    TTNT is defined as the time from randomization to initiation of the first dose of a new systemic anticancer therapy for chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) or death due to any cause, whichever occurs first.

  4. Duration of Response (DOR) per iwCLL Criteria 2018 as Assessed by BICR

    Time frame: Up to approximately 94 months

    For participants who demonstrate a CR, CRi, nPR, or PR per iwCLL criteria as assessed by BICR, DOR is defined as the time from the first documented evidence of CR, CRi, nPR, or PR that led to response until disease progression or death due to any cause, whichever occurs first.

  5. Number of Participants Who Experience an Adverse Event (AE)

    Time frame: Up to approximately 94 months

    An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention.

  6. Number of Participants Who Discontinue Study Treatment Due to an AE

    Time frame: Up to approximately 94 months

    An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention.

Sponsors and collaborators

Lead sponsor

Merck Sharp & Dohme LLC

Industry

Registry information

Official study title

A Phase 3, Randomized Study to Compare the Efficacy and Safety of Nemtabrutinib Versus Chemoimmunotherapy for Previously Untreated Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma Without TP53 Aberrations

Important dates

Study start
2023
Primary completion
2027
Study completion
2031
First posted
Nov 22, 2022
Registry last updated
Mar 16, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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