A Study to Evaluate the Safety and Efficacy of BGB-16673 Compared to Pirtobrutinib in Adults With Relapsed/Refractory Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma

NCT ID: NCT06973187

Last Updated: 2025-11-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

500 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-09-04

Study Completion Date

2028-04-17

Brief Summary

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The purpose of this study is to evaluate the efficacy and safety of BGB-16673 alone compared with pirtobrutinib in patients with relapsed or refractory (R/R) chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) who had been previously treated with a covalent Bruton tyrosine kinase inhibitor (cBTKi).

Detailed Description

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Conditions

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Chronic Lymphocytic Leukemia Small Lymphocytic Lymphoma

Keywords

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Noncovalent Bruton tyrosine kinase inhibitor Bruton tyrosine kinase-targeted protein degrader

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Arm A: BGB-16673

Participants will receive BGB-16673 orally.

Group Type EXPERIMENTAL

BGB-16673

Intervention Type DRUG

BGB-16673 will be administered orally

Arm B: Pirtobrutinib

Participants will receive pirtobrutinib orally.

Group Type ACTIVE_COMPARATOR

Pirtobrutinib

Intervention Type DRUG

Pirtobrutinib will be administered orally

Interventions

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BGB-16673

BGB-16673 will be administered orally

Intervention Type DRUG

Pirtobrutinib

Pirtobrutinib will be administered orally

Intervention Type DRUG

Other Intervention Names

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Jaypirca

Eligibility Criteria

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Inclusion Criteria

* Confirmed diagnosis of CLL or SLL, requiring treatment, based on 2018 iwCLL criteria
* Previously received treatment for CLL/SLL with a covalent Bruton tyrosine kinase inhibitor (cBTKi). Patients should have disease relapsed after or refractory to at least 1 line of therapy including a cBTKi.
* Participants with SLL must have measurable disease by computed tomography/magnetic resonance imaging, defined as ≥ 1 lymph node \> 1.5 cm in longest diameter and measurable in 2 perpendicular diameters.

Exclusion Criteria

* Known prolymphocytic leukemia or history of, or currently suspected, Richter's transformation.
* History of known bleeding disorder such as hemophilia A, hemophilia B, von Willebrand disease, or history of spontaneous bleeding requiring blood transfusion or other medical intervention
* History of ischemic stroke or intracranial hemorrhage within 6 months before first dose of study drug
* Prior exposure to any Bruton tyrosine kinase (BTK) protein degraders or noncovalent Bruton tyrosine kinase inhibitor (ncBTKi).
* Current or history of central nervous system involvement including the brain, spinal cord, leptomeninges, and cerebrospinal fluid (as documented by imaging, cytology, or biopsy) by CLL/SLL
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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BeOne Medicines

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Study Director

Role: STUDY_DIRECTOR

BeOne Medicines

Locations

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Cancer Specialists of North Florida

Jacksonville, Florida, United States

Site Status RECRUITING

Dayton Physician Network

Dayton, Ohio, United States

Site Status RECRUITING

Blue Ridge Cancer Care (Oncology and Hematology Associates of Southwest Virginia)

Roanoke, Virginia, United States

Site Status RECRUITING

Summit Cancer Centers

Spokane, Washington, United States

Site Status RECRUITING

Northwest Medical Specialties

Tacoma, Washington, United States

Site Status RECRUITING

Concord Repatriation General Hospital

Concord, New South Wales, Australia

Site Status RECRUITING

Sunshine Coast Hospital and Health Service

Birtinya, Queensland, Australia

Site Status RECRUITING

Peninsula Private Hospital

Frankston, Victoria, Australia

Site Status RECRUITING

Cabrini Hospital Malvern

Malvern East, Victoria, Australia

Site Status RECRUITING

Peter Maccallum Cancer Centre

Melbourne, Victoria, Australia

Site Status RECRUITING

The Alfred Hospital

Melbourne, Victoria, Australia

Site Status RECRUITING

Linear Clinical Research

Nedlands, Western Australia, Australia

Site Status RECRUITING

North Shore Hospital

Auckland, , New Zealand

Site Status RECRUITING

Tauranga Hospital

Tauranga, , New Zealand

Site Status RECRUITING

Singapore General Hospital

Singapore, , Singapore

Site Status RECRUITING

Tan Tock Seng Hospital Haematology

Singapore, , Singapore

Site Status RECRUITING

Countries

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United States Australia New Zealand Singapore

Central Contacts

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Study Director

Role: CONTACT

Phone: 1-877-828-5568

Email: [email protected]

Other Identifiers

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2025-522860-34-00

Identifier Type: CTIS

Identifier Source: secondary_id

BGB-16673-304

Identifier Type: -

Identifier Source: org_study_id