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A Study of Nemtabrutinib (MK-1026) Versus Comparator (Investigator's Choice of Ibrutinib or Acalabrutinib) in First Line (1L) Chronic Lymphocytic Leukemia (CLL)/ Small Lymphocytic Lymphoma (SLL) (MK-1026-011/BELLWAVE-011)

A Phase 3, Randomized Study to Compare Nemtabrutinib Versus Comparator (Investigator's Choice of Ibrutinib or Acalabrutinib) in Participants With Untreated Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma (BELLWAVE-011)

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06136559
Enrollment
1200
Registered
2023-11-18
Start date
2023-12-13
Completion date
2032-09-07
Last updated
2026-09-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Lymphocytic Leukemia, Small Lymphocytic Lymphoma

Brief summary

The goal of this study is to evaluate nemtabrutinib compared with investigator's choice of ibrutinib or acalabrutinib in participants with chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) who have not received any prior therapy. The primary hypotheses are that (1) nemtabrutinib is non-inferior to ibrutinib or acalabrutinib with respect to objective response rate (ORR) per International Workshop on Chronic Lymphocytic Leukemia (iwCLL) Criteria 2018 by blinded independent central review (BICR) and (2) nemtabrutinib is superior to ibrutinib or acalabrutinib with respect to progression free survival (PFS) per iwCLL Criteria 2018 by BICR.

Interventions

DRUGNemtabrutinib

Administered orally

DRUGIbrutinib

Administered orally

DRUGAcalabrutinib

Administered orally

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

The main inclusion criteria include but are not limited to the following: * Confirmed diagnosis of CLL/SLL and active disease clearly documented to have a need to initiate therapy. * Has at least 1 marker of disease burden. * Has an Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2 within 7 days before randomization. * 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 deoxyribonucleic acid (DNA) viral load before randomization. * Participants with history of hepatitis C virus (HCV) infection are eligible if HCV ribonucleic acid (RNA) viral load is undetectable at screening. * Participants with human immunodeficiency virus (HIV) who meet ALL eligibility criteria.

Exclusion criteria

The main

Design outcomes

Primary

MeasureTime frameDescription
Objective Response Rate (ORR) per Chronic Lymphocytic Leukemia (iwCLL) Criteria 2018 as assessed by Blinded Independent Central Review (BICR)Up to ~33 monthsORR 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.
Progression-Free Survival (PFS) per iwCLL Criteria 2018 as assessed by BICRUp to ~104 monthsPFS 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 iwCLL Criteria 2018 as assessed by BICR.

Secondary

MeasureTime frameDescription
Overall Survival (OS)Up to ~104 monthsOS is defined as the time from randomization to death due to any cause.
Duration of Response (DOR) per iwCLL Criteria 2018 as assessed by BICRUp to ~104 monthsFor participants who demonstrate a 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, 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.
Number of Participants Who Experience One or More Adverse Events (AEs)Up to ~104 monthsAn 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.
Number of Participants Who Discontinue Study Treatment Due to an AEUp to ~104 monthsAn 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.

Countries

Australia, Belgium, Brazil, Canada, Chile, China, Colombia, Czechia, Denmark, Germany, Greece, Hong Kong, Israel, Japan, Malaysia, Mexico, New Zealand, Norway, Peru, Poland, Portugal, South Africa, Spain, Sweden, Taiwan, Thailand, Turkey (Türkiye), United Kingdom, United States

Contacts

CONTACTToll Free Number
Trialsites@msd.com1-888-577-8839
STUDY_DIRECTORMedical Director

Merck Sharp & Dohme LLC

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 15, 2026