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Study of the Safety and Pharmacokinetics of BGB-3111 in Subjects With B-Cell Lymphoid Malignancies

A Phase I/II, Open-Label, Multiple-Dose, Dose Escalation and Expansion Study to Investigate the Safety and Pharmacokinetics of the BTK Inhibitor BGB-3111 in Subjects With B-Cell Lymphoid Malignancies

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02343120
Enrollment
385
Registered
2015-01-21
Start date
2014-09-04
Completion date
2021-03-31
Last updated
2022-04-28

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

Conditions

B-cell Malignancies

Brief summary

This study evaluated the safety, tolerability, pharmacokinetic profile and efficacy of BGB-3111 in participants with B-cell lymphoid malignancies.

Interventions

DRUGZanubrutinib

Oral administration by capsule

Sponsors

BeiGene
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Aged ≥ 18 years, voluntarily consented to the study. 2. WHO classification defined B-lymphoid malignancy, with the exception of Burkitt lymphoma/leukemia, plasma cell myeloma, acute lymphoblastic leukemia, lymphoblastic lymphoma, and plasmablastic lymphoma. 3. Requirement for treatment in the opinion of the investigator. 4. Disease which has relapsed, or is refractory, following at least one line of therapy, with no therapy of higher priority available. 5. Eastern Cooperative Oncology Group (ECOG) performance status of 0-2. 6. Adequate hematologic function, as defined by neutrophils ≥ 1.0 x 10\^9/L and platelets ≥ 50 x 10\^9/L; participants with neutrophils \< 1.0 x 10\^9/L due to marrow infiltration are allowed to receive growth factors to bring pre-treatment neutrophils to ≥ 1.0 x 10\^9/L. 7. Adequate renal function, as defined by creatinine clearance of ≥ 30 ml/min (as estimated by the Cockcroft-Gault equation or as measured by nuclear medicine scan or 24 hour urine collection). 8. Adequate liver function, as defined by aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 3 x upper limit of normal (ULN), and bilirubin ≤ 1.5 x ULN (unless documented Gilbert's syndrome). 9. International normalized ratio (INR) ≤ 1.5 and activated partial thromboplastin time (APTT) ≤ 1.5 x ULN. 10. Female participants of childbearing potential and non-sterile males must practice at least one of the following methods of birth control with partner(s) throughout the study and for 90 days after discontinuing study drug: total abstinence from sexual intercourse, double-barrier contraception, IUD or hormonal contraceptive initiated at least 3 months prior to first dose of study drug. 11. Male participants must not donate sperm from initial study drug administration, until 90 days after drug discontinuation.

Exclusion criteria

1. Current central nervous system (CNS) involvement by disease 2. Current histologically transformed disease. 3. Prior Bruton's tyrosine kinase (BTK) inhibitor treatment. 4. Allogeneic stem cell transplantation within 6 months, or has active graft-versus-host disease (GVHD) requiring ongoing immunosuppression. 5. Receipt of the following treatment prior to first dose of zanubrutinib: corticosteroids given with anti-neoplastic intent within 7 days, chemotherapy or radiotherapy within 2 weeks, monoclonal antibody within 4 weeks. 6. Not recovered from toxicity of any prior chemotherapy to grade ≤ 1. 7. History of other active malignancies within 2 years of study entry, with exception of (1) adequately treated in-situ carcinoma of cervix; (2) localized basal cell or squamous cell carcinoma of skin; (3) previous malignancy confined and treated locally (surgery or other modality) with curative intent. 8. Uncontrolled systemic infection requiring parenteral anti-microbial therapy. 9. Major surgery in the past 4 weeks. 10. Known HIV, or active hepatitis B or hepatitis C infection (detected positive by PCR). 11. Cardiovascular disease resulting in New York Heart Association function status of ≥ 3. 12. Significant active renal, neurologic, psychiatric, hepatic or endocrinologic disease that in the investigator's opinion would adversely impact on his/her participating in the study. 13. Inability to comply with study procedures. 14. On medications which are cytochrome P450 (CYP) 3A inhibitors.

Design outcomes

Primary

MeasureTime frameDescription
Part 1 and Part 2: Number of Participants With Adverse EventsUp to approximately 6 years and 7 monthsNumber of participants with adverse events and serious adverse events, including clinically relevant physical examinations and laboratory measurements
Part 1: Recommended Phase 2 Dose (RP2D) for ZanubrutinibMonth 9RP2D for zanubrutinib was the maximum tolerated dose (MTD) or less, which was determined by testing increasing doses up to 320 mg QD

Secondary

MeasureTime frameDescription
Part 1 and Part 2: Maximum Observed Plasma Concentration (Cmax) After Administration of ZanubrutinibWeek 1 Day 1 pre-dose, 0.5, 1, 2, 3, 4, and 8 hours
Part 1 and Part 2: Time to Maximum Observed Plasma Concentration (Tmax) of ZanubrutinibWeek 1 Day 1 pre-dose, 0.5, 1, 2, 3, 4, and 8 hours
Part 1 and Part 2: Apparent Terminal Half-life (t1/2) of ZanubrutinibWeek 1 Day 1 pre-dose, 0.5, 1, 2, 3, 4, and 8 hours
Part 1 and Part 2: Apparent Clearance (CL/F) of ZanubrutinibWeek 1 Day 1 pre-dose, 0.5, 1, 2, 3, 4, and 8 hours
Part 1 and Part 2: Apparent Volume of Distribution of Zanubrutinib During the Terminal Phase (Vz/F)Week 1 Day 1 pre-dose, 0.5, 1, 2, 3, 4, and 8 hours
Part 1 and Part 2: Overall Response Rate (ORR)Up to 6 years and 7 monthsORR is defined as the percentage of participants with partial or complete response (CR), as assessed by the investigator. For CLL/SLL, ORR includes partial response (PR) with lymphocytosis (PR-L) or better (includes PR-L, PR, nodular PR or nPR and CR with incomplete marrow recovery or CRi) and for MW, ORR includes minor response or better. Efficacy results are reported for each of the B-cell malignancy subtypes: chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), Waldenström macroglobulinemia (WM), mantle cell lymphoma (MCL), marginal zone lymphoma (MZL), follicular lymphoma (FL), diffuse large B-cell lymphoma (DLBCL), Richter's Transformation (RT), and Hairy cell leukemia (HCL).
Part 1 and Part 2: Area Under the Curve From Time 0 to the Last Sampling Time Point Within the Dose Interval (AUClast) of ZanubrutinibWeek 1 Day 1 pre-dose, 0.5, 1, 2, 3, 4, and 8 hours
Part 1 and Part 2: Partial Response (PR) or BetterUp to 6 years and 7 monthsPR or better is defined as the percentage of participants who achieve a partial response or better, as assessed by the investigator. For CLL/SLL, includes PR, nPR, CRi, CR and for WM includes PR, VGPR, and CR. Efficacy results are reported for the B-cell malignancy subtypes chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) and Waldenström macroglobulinemia (WM).
Part 1 and Part 2: Progression-free Survival (PFS)Up to 6 years and 7 monthsPFS is defined as the time from the first dose date of study drug to the date of the earliest occurrence of progressive disease or death due to any cause, whichever occurs first. Efficacy results are reported for each of the B-cell malignancy subtypes: chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), Waldenström macroglobulinemia (WM), mantle cell lymphoma (MCL), marginal zone lymphoma (MZL), follicular lymphoma (FL), diffuse large B-cell lymphoma (DLBCL), Richter's Transformation (RT), and Hairy cell leukemia (HCL).
Part 1 and Part 2: Overall Survival (OS)Up to 6 years and 7 monthsOS is defined as the time from the date of the first dose to death due to any cause. Efficacy results are reported for each of the B-cell malignancy subtypes: chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), Waldenström macroglobulinemia (WM), mantle cell lymphoma (MCL), marginal zone lymphoma (MZL), follicular lymphoma (FL), diffuse large B-cell lymphoma (DLBCL), Richter's Transformation (RT), and Hairy cell leukemia (HCL).
Part 1 and Part 2: Duration of Response (DOR)Up to 6 years and 7 monthsDOR for responders is defined as time from the date of the earliest qualifying response to the date of progressive disease or death for any cause, whichever occurs earlier. Efficacy results are reported for responders (defined as PR or better, except CLL/SLL and WM) in each of the B-cell malignancy subtypes: chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL; PR with lymphocytosis or better), Waldenstrom macroglobulinemia (WM; minor response or better), mantle cell lymphoma (MCL), marginal zone lymphoma (MZL), follicular lymphoma (FL), diffuse large B-cell lymphoma (DLBCL), Richter's Transformation (RT), and Hairy cell leukemia (HCL).
Number of Participants With Greater Than 75% Bruton's Tyrosine Kinase (BTK) OccupancyWeek 1 Day 1 (W1D1) predose, W1D1 4 hours, W1D2 24 hours, W1D3 predose, and W2D1 predoseNumber of participants with greater than 75% BTK occupancy of zanubrutinib in peripheral blood mononuclear cells (PBMCs)
Part 1 and Part 2: Complete Response Rate (CRR)Up to 6 years and 7 monthsCRR is defined as the percentage of participants who achieve a complete response, as assessed by the investigator. For CLL/SLL, CRR includes CRi or better. For WM, CRR includes very good partial response (VGPR) or better. Efficacy results are reported for each of the B-cell malignancy subtypes: chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), Waldenström macroglobulinemia (WM), mantle cell lymphoma (MCL), marginal zone lymphoma (MZL), follicular lymphoma (FL), diffuse large B-cell lymphoma (DLBCL), Richter's Transformation (RT), and Hairy cell leukemia (HCL).
Part 1 and Part 2: Area Under the Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of ZanubrutinibWeek 1 Day 1 pre-dose, 0.5, 1, 2, 3, 4, and 8 hours

Countries

Australia, Italy, New Zealand, South Korea, United Kingdom, United States

Participant flow

Recruitment details

The study was conducted in 2 parts. The dose escalation part (Part 1) determined the recommended phase 2 dose (RP2D) and regimen and the dose expansion part (Part 2) further characterized the safety and efficacy at the RP2D.

Participants by arm

ArmCount
Part 1: 40 mg QD
Participants received 40 mg of zanubrutinib once daily (QD) orally until disease progression, intolerance or death, withdrawal of consent, or loss to follow-up
3
Part 1: 80 mg QD
Participants received 80 mg of zanubrutinib once daily (QD) orally until disease progression, intolerance or death, withdrawal of consent, or loss to follow-up
4
Part 1: 160 mg QD
Participants received 160 mg of zanubrutinib once daily (QD) orally until disease progression, intolerance or death, withdrawal of consent, or loss to follow-up
5
Part 1 and Part 2: 160 mg BID
Part 1: Participants received 160 mg of zanubrutinib twice daily (BID) orally until disease progression, intolerance or death, withdrawal of consent, or loss to follow-up were evaluated. Part 2: This dose regimen was selected for further evaluation in various expansion cohorts that span multiple disease types.
278
Part 1 and Part 2: 320 mg QD
Part 1: Participants received 320 mg of zanubrutinib once daily (QD) orally until disease progression, intolerance or death, withdrawal of consent, or loss to follow-up were evaluated. Part 2: This dose regimen was selected for further evaluation in various expansion cohorts that span multiple disease types.
95
Total385

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004
Part 1: Dose EscalationDeath12221
Part 1: Dose EscalationLost to Follow-up10000
Part 1: Dose EscalationSponsor decision12320
Part 2: ExpansionAdverse Event00011
Part 2: ExpansionDeath0007417
Part 2: ExpansionLost to Follow-up00052
Part 2: ExpansionOther00015
Part 2: ExpansionSponsor decision00016567
Part 2: ExpansionWithdrawal by Subject000282

Baseline characteristics

CharacteristicPart 1: 40 mg QDPart 1: 80 mg QDPart 1: 160 mg QDPart 1 and Part 2: 160 mg BIDPart 1 and Part 2: 320 mg QDTotal
Age, Continuous62.7 Years
STANDARD_DEVIATION 9.45
62.3 Years
STANDARD_DEVIATION 14.38
72.6 Years
STANDARD_DEVIATION 8.88
66.4 Years
STANDARD_DEVIATION 11.21
65.8 Years
STANDARD_DEVIATION 11.24
66.3 Years
STANDARD_DEVIATION 11.19
Race/Ethnicity, Customized
Asian
1 Participants0 Participants0 Participants47 Participants5 Participants53 Participants
Race/Ethnicity, Customized
Black or African American
0 Participants0 Participants0 Participants4 Participants1 Participants5 Participants
Race/Ethnicity, Customized
Multiple
0 Participants0 Participants0 Participants1 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Native Hawaiians or other Pacific Islanders
0 Participants0 Participants0 Participants2 Participants0 Participants2 Participants
Race/Ethnicity, Customized
Not Reported
0 Participants0 Participants0 Participants1 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Other
0 Participants0 Participants0 Participants18 Participants2 Participants20 Participants
Race/Ethnicity, Customized
White
2 Participants4 Participants5 Participants205 Participants87 Participants303 Participants
Sex: Female, Male
Female
1 Participants1 Participants1 Participants86 Participants20 Participants109 Participants
Sex: Female, Male
Male
2 Participants3 Participants4 Participants192 Participants75 Participants276 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
1 / 32 / 42 / 576 / 27819 / 95
other
Total, other adverse events
3 / 34 / 45 / 5273 / 27894 / 95
serious
Total, serious adverse events
1 / 32 / 43 / 5157 / 27845 / 95

Outcome results

Primary

Part 1 and Part 2: Number of Participants With Adverse Events

Number of participants with adverse events and serious adverse events, including clinically relevant physical examinations and laboratory measurements

Time frame: Up to approximately 6 years and 7 months

Population: The Safety Analysis Set included all participants who received ≥ 1 dose of study drug

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part 1: 40 mg QDPart 1 and Part 2: Number of Participants With Adverse EventsAt least one treatment-emergent adverse event3 Participants
Part 1: 40 mg QDPart 1 and Part 2: Number of Participants With Adverse EventsSerious adverse events1 Participants
Part 1: 80 mg QDPart 1 and Part 2: Number of Participants With Adverse EventsSerious adverse events2 Participants
Part 1: 80 mg QDPart 1 and Part 2: Number of Participants With Adverse EventsAt least one treatment-emergent adverse event4 Participants
Part 1: 160 mg QDPart 1 and Part 2: Number of Participants With Adverse EventsSerious adverse events3 Participants
Part 1: 160 mg QDPart 1 and Part 2: Number of Participants With Adverse EventsAt least one treatment-emergent adverse event5 Participants
Parts 1 and 2: 160 mg BIDPart 1 and Part 2: Number of Participants With Adverse EventsAt least one treatment-emergent adverse event274 Participants
Parts 1 and 2: 160 mg BIDPart 1 and Part 2: Number of Participants With Adverse EventsSerious adverse events157 Participants
Parts 1 and 2: 320 mg QDPart 1 and Part 2: Number of Participants With Adverse EventsSerious adverse events45 Participants
Parts 1 and 2: 320 mg QDPart 1 and Part 2: Number of Participants With Adverse EventsAt least one treatment-emergent adverse event94 Participants
Primary

Part 1: Recommended Phase 2 Dose (RP2D) for Zanubrutinib

RP2D for zanubrutinib was the maximum tolerated dose (MTD) or less, which was determined by testing increasing doses up to 320 mg QD

Time frame: Month 9

Population: The Safety Analysis Set included all participants who received ≥ 1 dose of study drug

ArmMeasureValue (NUMBER)
Part 1: 40 mg QDPart 1: Recommended Phase 2 Dose (RP2D) for Zanubrutinib320 milligrams
Secondary

Number of Participants With Greater Than 75% Bruton's Tyrosine Kinase (BTK) Occupancy

Number of participants with greater than 75% BTK occupancy of zanubrutinib in peripheral blood mononuclear cells (PBMCs)

Time frame: Week 1 Day 1 (W1D1) predose, W1D1 4 hours, W1D2 24 hours, W1D3 predose, and W2D1 predose

Population: Pharmacodynamic analysis set consisted of participants in which PBMCs were collected and evaluable samples were obtained.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part 1: 40 mg QDNumber of Participants With Greater Than 75% Bruton's Tyrosine Kinase (BTK) Occupancy3 Participants
Part 1: 80 mg QDNumber of Participants With Greater Than 75% Bruton's Tyrosine Kinase (BTK) Occupancy4 Participants
Part 1: 160 mg QDNumber of Participants With Greater Than 75% Bruton's Tyrosine Kinase (BTK) Occupancy5 Participants
Parts 1 and 2: 160 mg BIDNumber of Participants With Greater Than 75% Bruton's Tyrosine Kinase (BTK) Occupancy20 Participants
Parts 1 and 2: 320 mg QDNumber of Participants With Greater Than 75% Bruton's Tyrosine Kinase (BTK) Occupancy9 Participants
Secondary

Part 1 and Part 2: Apparent Clearance (CL/F) of Zanubrutinib

Time frame: Week 1 Day 1 pre-dose, 0.5, 1, 2, 3, 4, and 8 hours

Population: The PK analysis set included all participants for whom valid zanubrutinib PK parameters could be estimated, shown as overall number analyzed. Only participants with available data per dose were included in the analysis.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: 40 mg QDPart 1 and Part 2: Apparent Clearance (CL/F) of Zanubrutinib133 Liters/hourGeometric Coefficient of Variation 51.5
Part 1: 80 mg QDPart 1 and Part 2: Apparent Clearance (CL/F) of Zanubrutinib174 Liters/hourGeometric Coefficient of Variation 100.6
Part 1: 160 mg QDPart 1 and Part 2: Apparent Clearance (CL/F) of Zanubrutinib106 Liters/hourGeometric Coefficient of Variation 52.7
Parts 1 and 2: 160 mg BIDPart 1 and Part 2: Apparent Clearance (CL/F) of Zanubrutinib128 Liters/hourGeometric Coefficient of Variation 59.4
Parts 1 and 2: 320 mg QDPart 1 and Part 2: Apparent Clearance (CL/F) of Zanubrutinib126 Liters/hourGeometric Coefficient of Variation 47.8
Secondary

Part 1 and Part 2: Apparent Terminal Half-life (t1/2) of Zanubrutinib

Time frame: Week 1 Day 1 pre-dose, 0.5, 1, 2, 3, 4, and 8 hours

Population: The PK analysis set included all participants for whom valid zanubrutinib PK parameters could be estimated, shown as overall number analyzed. Only participants with available data per dose were included in the analysis.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: 40 mg QDPart 1 and Part 2: Apparent Terminal Half-life (t1/2) of Zanubrutinib1.94 HoursGeometric Coefficient of Variation 28.5
Part 1: 80 mg QDPart 1 and Part 2: Apparent Terminal Half-life (t1/2) of Zanubrutinib1.97 HoursGeometric Coefficient of Variation 29.8
Part 1: 160 mg QDPart 1 and Part 2: Apparent Terminal Half-life (t1/2) of Zanubrutinib3.87 HoursGeometric Coefficient of Variation 24.9
Parts 1 and 2: 160 mg BIDPart 1 and Part 2: Apparent Terminal Half-life (t1/2) of Zanubrutinib2.73 HoursGeometric Coefficient of Variation 60.2
Parts 1 and 2: 320 mg QDPart 1 and Part 2: Apparent Terminal Half-life (t1/2) of Zanubrutinib3.30 HoursGeometric Coefficient of Variation 61.2
Secondary

Part 1 and Part 2: Apparent Volume of Distribution of Zanubrutinib During the Terminal Phase (Vz/F)

Time frame: Week 1 Day 1 pre-dose, 0.5, 1, 2, 3, 4, and 8 hours

Population: The PK analysis set included all participants for whom valid zanubrutinib PK parameters could be estimated, shown as overall number analyzed. Only participants with available data per dose were included in the analysis.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: 40 mg QDPart 1 and Part 2: Apparent Volume of Distribution of Zanubrutinib During the Terminal Phase (Vz/F)371 LitersGeometric Coefficient of Variation 47.5
Part 1: 80 mg QDPart 1 and Part 2: Apparent Volume of Distribution of Zanubrutinib During the Terminal Phase (Vz/F)494 LitersGeometric Coefficient of Variation 78.9
Part 1: 160 mg QDPart 1 and Part 2: Apparent Volume of Distribution of Zanubrutinib During the Terminal Phase (Vz/F)593 LitersGeometric Coefficient of Variation 61.6
Parts 1 and 2: 160 mg BIDPart 1 and Part 2: Apparent Volume of Distribution of Zanubrutinib During the Terminal Phase (Vz/F)530 LitersGeometric Coefficient of Variation 70
Parts 1 and 2: 320 mg QDPart 1 and Part 2: Apparent Volume of Distribution of Zanubrutinib During the Terminal Phase (Vz/F)600 LitersGeometric Coefficient of Variation 97.6
Secondary

Part 1 and Part 2: Area Under the Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of Zanubrutinib

Time frame: Week 1 Day 1 pre-dose, 0.5, 1, 2, 3, 4, and 8 hours

Population: The PK analysis set included all participants for whom valid zanubrutinib PK parameters could be estimated, shown as overall number analyzed. Only participants with available data per dose were included in the analysis.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: 40 mg QDPart 1 and Part 2: Area Under the Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of Zanubrutinib301.1 nanograms/milliliters*hourGeometric Coefficient of Variation 51.5
Part 1: 80 mg QDPart 1 and Part 2: Area Under the Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of Zanubrutinib460.0 nanograms/milliliters*hourGeometric Coefficient of Variation 100.6
Part 1: 160 mg QDPart 1 and Part 2: Area Under the Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of Zanubrutinib1505 nanograms/milliliters*hourGeometric Coefficient of Variation 52.7
Parts 1 and 2: 160 mg BIDPart 1 and Part 2: Area Under the Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of Zanubrutinib1253 nanograms/milliliters*hourGeometric Coefficient of Variation 59
Parts 1 and 2: 320 mg QDPart 1 and Part 2: Area Under the Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of Zanubrutinib2538 nanograms/milliliters*hourGeometric Coefficient of Variation 47.8
Secondary

Part 1 and Part 2: Area Under the Curve From Time 0 to the Last Sampling Time Point Within the Dose Interval (AUClast) of Zanubrutinib

Time frame: Week 1 Day 1 pre-dose, 0.5, 1, 2, 3, 4, and 8 hours

Population: The pharmacokinetic (PK) analysis set included all participants for whom valid zanubrutinib PK parameters could be estimated, shown as overall number analyzed. Only participants with available data per dose were included in the analysis.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: 40 mg QDPart 1 and Part 2: Area Under the Curve From Time 0 to the Last Sampling Time Point Within the Dose Interval (AUClast) of Zanubrutinib274.7 nanograms/milliliters*hourGeometric Coefficient of Variation 47.8
Part 1: 80 mg QDPart 1 and Part 2: Area Under the Curve From Time 0 to the Last Sampling Time Point Within the Dose Interval (AUClast) of Zanubrutinib436.8 nanograms/milliliters*hourGeometric Coefficient of Variation 103.5
Part 1: 160 mg QDPart 1 and Part 2: Area Under the Curve From Time 0 to the Last Sampling Time Point Within the Dose Interval (AUClast) of Zanubrutinib1480 nanograms/milliliters*hourGeometric Coefficient of Variation 53
Parts 1 and 2: 160 mg BIDPart 1 and Part 2: Area Under the Curve From Time 0 to the Last Sampling Time Point Within the Dose Interval (AUClast) of Zanubrutinib1132 nanograms/milliliters*hourGeometric Coefficient of Variation 61.1
Parts 1 and 2: 320 mg QDPart 1 and Part 2: Area Under the Curve From Time 0 to the Last Sampling Time Point Within the Dose Interval (AUClast) of Zanubrutinib2281 nanograms/milliliters*hourGeometric Coefficient of Variation 60.5
Secondary

Part 1 and Part 2: Complete Response Rate (CRR)

CRR is defined as the percentage of participants who achieve a complete response, as assessed by the investigator. For CLL/SLL, CRR includes CRi or better. For WM, CRR includes very good partial response (VGPR) or better. Efficacy results are reported for each of the B-cell malignancy subtypes: chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), Waldenström macroglobulinemia (WM), mantle cell lymphoma (MCL), marginal zone lymphoma (MZL), follicular lymphoma (FL), diffuse large B-cell lymphoma (DLBCL), Richter's Transformation (RT), and Hairy cell leukemia (HCL).

Time frame: Up to 6 years and 7 months

Population: Efficacy Evaluable Set consists of all participants who received at least one dose of zanubrutinib; for WM, participants also must have a baseline IgM (or M-protein) ≥ 5 g/L and no prior exposure to a BTK inhibitor.

ArmMeasureGroupValue (NUMBER)
Part 1: 40 mg QDPart 1 and Part 2: Complete Response Rate (CRR)CLL/SLL16.8 Percentage of participants
Part 1: 40 mg QDPart 1 and Part 2: Complete Response Rate (CRR)HCL16.7 Percentage of participants
Part 1: 40 mg QDPart 1 and Part 2: Complete Response Rate (CRR)WM46.6 Percentage of participants
Part 1: 40 mg QDPart 1 and Part 2: Complete Response Rate (CRR)MCL28.1 Percentage of participants
Part 1: 40 mg QDPart 1 and Part 2: Complete Response Rate (CRR)MZL20.0 Percentage of participants
Part 1: 40 mg QDPart 1 and Part 2: Complete Response Rate (CRR)FL18.2 Percentage of participants
Part 1: 40 mg QDPart 1 and Part 2: Complete Response Rate (CRR)DLBCL24.4 Percentage of participants
Part 1: 40 mg QDPart 1 and Part 2: Complete Response Rate (CRR)RT15.4 Percentage of participants
Secondary

Part 1 and Part 2: Duration of Response (DOR)

DOR for responders is defined as time from the date of the earliest qualifying response to the date of progressive disease or death for any cause, whichever occurs earlier. Efficacy results are reported for responders (defined as PR or better, except CLL/SLL and WM) in each of the B-cell malignancy subtypes: chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL; PR with lymphocytosis or better), Waldenstrom macroglobulinemia (WM; minor response or better), mantle cell lymphoma (MCL), marginal zone lymphoma (MZL), follicular lymphoma (FL), diffuse large B-cell lymphoma (DLBCL), Richter's Transformation (RT), and Hairy cell leukemia (HCL).

Time frame: Up to 6 years and 7 months

Population: Efficacy Evaluable Set consists of all participants who received at least one dose of zanubrutinib; for WM, participants also must have a baseline IgM (or M-protein) ≥ 5 g/L and no prior exposure to a BTK inhibitor.

ArmMeasureGroupValue (MEDIAN)
Part 1: 40 mg QDPart 1 and Part 2: Duration of Response (DOR)WMNA Months
Part 1: 40 mg QDPart 1 and Part 2: Duration of Response (DOR)CLL/SLL58.6 Months
Part 1: 40 mg QDPart 1 and Part 2: Duration of Response (DOR)MCL28.2 Months
Part 1: 40 mg QDPart 1 and Part 2: Duration of Response (DOR)MZLNA Months
Part 1: 40 mg QDPart 1 and Part 2: Duration of Response (DOR)FLNA Months
Part 1: 40 mg QDPart 1 and Part 2: Duration of Response (DOR)DLBCL14.2 Months
Part 1: 40 mg QDPart 1 and Part 2: Duration of Response (DOR)RT25.9 Months
Part 1: 40 mg QDPart 1 and Part 2: Duration of Response (DOR)HCLNA Months
Secondary

Part 1 and Part 2: Maximum Observed Plasma Concentration (Cmax) After Administration of Zanubrutinib

Time frame: Week 1 Day 1 pre-dose, 0.5, 1, 2, 3, 4, and 8 hours

Population: The PK analysis set included all participants for whom valid zanubrutinib PK parameters could be estimated, shown as overall number analyzed. Only participants with available data per dose were included in the analysis.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: 40 mg QDPart 1 and Part 2: Maximum Observed Plasma Concentration (Cmax) After Administration of Zanubrutinib86.0 nanograms/milliliterGeometric Coefficient of Variation 46.6
Part 1: 80 mg QDPart 1 and Part 2: Maximum Observed Plasma Concentration (Cmax) After Administration of Zanubrutinib125 nanograms/milliliterGeometric Coefficient of Variation 77.6
Part 1: 160 mg QDPart 1 and Part 2: Maximum Observed Plasma Concentration (Cmax) After Administration of Zanubrutinib397 nanograms/milliliterGeometric Coefficient of Variation 76.1
Parts 1 and 2: 160 mg BIDPart 1 and Part 2: Maximum Observed Plasma Concentration (Cmax) After Administration of Zanubrutinib304 nanograms/milliliterGeometric Coefficient of Variation 63.8
Parts 1 and 2: 320 mg QDPart 1 and Part 2: Maximum Observed Plasma Concentration (Cmax) After Administration of Zanubrutinib566 nanograms/milliliterGeometric Coefficient of Variation 65.6
Secondary

Part 1 and Part 2: Maximum Observed Plasma Concentration (Cmax) After Administration of Zanubrutinib

Time frame: Week 2 Day 1 pre-dose and 24 hours

Population: The PK analysis set included all participants for whom valid zanubrutinib PK parameters could be estimated, shown as overall number analyzed. Only participants with available data per dose were included in the analysis.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: 40 mg QDPart 1 and Part 2: Maximum Observed Plasma Concentration (Cmax) After Administration of Zanubrutinib75.7 nanograms/milliliterGeometric Coefficient of Variation 36.2
Part 1: 80 mg QDPart 1 and Part 2: Maximum Observed Plasma Concentration (Cmax) After Administration of Zanubrutinib169 nanograms/milliliterGeometric Coefficient of Variation 50
Part 1: 160 mg QDPart 1 and Part 2: Maximum Observed Plasma Concentration (Cmax) After Administration of Zanubrutinib387 nanograms/milliliterGeometric Coefficient of Variation 60.7
Parts 1 and 2: 160 mg BIDPart 1 and Part 2: Maximum Observed Plasma Concentration (Cmax) After Administration of Zanubrutinib299 nanograms/milliliterGeometric Coefficient of Variation 56.1
Parts 1 and 2: 320 mg QDPart 1 and Part 2: Maximum Observed Plasma Concentration (Cmax) After Administration of Zanubrutinib533 nanograms/milliliterGeometric Coefficient of Variation 55
Secondary

Part 1 and Part 2: Overall Response Rate (ORR)

ORR is defined as the percentage of participants with partial or complete response (CR), as assessed by the investigator. For CLL/SLL, ORR includes partial response (PR) with lymphocytosis (PR-L) or better (includes PR-L, PR, nodular PR or nPR and CR with incomplete marrow recovery or CRi) and for MW, ORR includes minor response or better. Efficacy results are reported for each of the B-cell malignancy subtypes: chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), Waldenström macroglobulinemia (WM), mantle cell lymphoma (MCL), marginal zone lymphoma (MZL), follicular lymphoma (FL), diffuse large B-cell lymphoma (DLBCL), Richter's Transformation (RT), and Hairy cell leukemia (HCL).

Time frame: Up to 6 years and 7 months

Population: Efficacy Evaluable Set consists of all participants who received at least one dose of zanubrutinib; for WM, participants also must have a baseline IgM (or M-protein) ≥ 5 g/L and no prior exposure to a BTK inhibitor.

ArmMeasureGroupValue (NUMBER)
Part 1: 40 mg QDPart 1 and Part 2: Overall Response Rate (ORR)MCL82.5 Percentage of participants
Part 1: 40 mg QDPart 1 and Part 2: Overall Response Rate (ORR)FL36.4 Percentage of participants
Part 1: 40 mg QDPart 1 and Part 2: Overall Response Rate (ORR)RT61.5 Percentage of participants
Part 1: 40 mg QDPart 1 and Part 2: Overall Response Rate (ORR)CLL/SLL95.2 Percentage of participants
Part 1: 40 mg QDPart 1 and Part 2: Overall Response Rate (ORR)WM95.9 Percentage of participants
Part 1: 40 mg QDPart 1 and Part 2: Overall Response Rate (ORR)MZL85.0 Percentage of participants
Part 1: 40 mg QDPart 1 and Part 2: Overall Response Rate (ORR)DLBCL42.2 Percentage of participants
Part 1: 40 mg QDPart 1 and Part 2: Overall Response Rate (ORR)HCL58.3 Percentage of participants
Secondary

Part 1 and Part 2: Overall Survival (OS)

OS is defined as the time from the date of the first dose to death due to any cause. Efficacy results are reported for each of the B-cell malignancy subtypes: chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), Waldenström macroglobulinemia (WM), mantle cell lymphoma (MCL), marginal zone lymphoma (MZL), follicular lymphoma (FL), diffuse large B-cell lymphoma (DLBCL), Richter's Transformation (RT), and Hairy cell leukemia (HCL).

Time frame: Up to 6 years and 7 months

Population: Efficacy Evaluable Set consists of all participants who received at least one dose of zanubrutinib; for WM, participants also must have a baseline IgM (or M-protein) ≥ 5 g/L and no prior exposure to a BTK inhibitor.

ArmMeasureGroupValue (MEDIAN)
Part 1: 40 mg QDPart 1 and Part 2: Overall Survival (OS)FLNA Months
Part 1: 40 mg QDPart 1 and Part 2: Overall Survival (OS)CLL/SLLNA Months
Part 1: 40 mg QDPart 1 and Part 2: Overall Survival (OS)WMNA Months
Part 1: 40 mg QDPart 1 and Part 2: Overall Survival (OS)MCLNA Months
Part 1: 40 mg QDPart 1 and Part 2: Overall Survival (OS)MZLNA Months
Part 1: 40 mg QDPart 1 and Part 2: Overall Survival (OS)DLBCL14.7 Months
Part 1: 40 mg QDPart 1 and Part 2: Overall Survival (OS)RT29.3 Months
Part 1: 40 mg QDPart 1 and Part 2: Overall Survival (OS)HCLNA Months
Secondary

Part 1 and Part 2: Partial Response (PR) or Better

PR or better is defined as the percentage of participants who achieve a partial response or better, as assessed by the investigator. For CLL/SLL, includes PR, nPR, CRi, CR and for WM includes PR, VGPR, and CR. Efficacy results are reported for the B-cell malignancy subtypes chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) and Waldenström macroglobulinemia (WM).

Time frame: Up to 6 years and 7 months

Population: Efficacy Evaluable Set consists of all participants who received at least one dose of zanubrutinib; for WM, participants also must have a baseline IgM (or M-protein) ≥ 5 g/L and no prior exposure to a BTK inhibitor.

ArmMeasureGroupValue (NUMBER)
Part 1: 40 mg QDPart 1 and Part 2: Partial Response (PR) or BetterCLL/SLL92.0 Percentage of participants
Part 1: 40 mg QDPart 1 and Part 2: Partial Response (PR) or BetterWM82.2 Percentage of participants
Secondary

Part 1 and Part 2: Progression-free Survival (PFS)

PFS is defined as the time from the first dose date of study drug to the date of the earliest occurrence of progressive disease or death due to any cause, whichever occurs first. Efficacy results are reported for each of the B-cell malignancy subtypes: chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), Waldenström macroglobulinemia (WM), mantle cell lymphoma (MCL), marginal zone lymphoma (MZL), follicular lymphoma (FL), diffuse large B-cell lymphoma (DLBCL), Richter's Transformation (RT), and Hairy cell leukemia (HCL).

Time frame: Up to 6 years and 7 months

Population: Efficacy Evaluable Set consists of all participants who received at least one dose of zanubrutinib; for WM, participants also must have a baseline IgM (or M-protein) ≥ 5 g/L and no prior exposure to a BTK inhibitor.

ArmMeasureGroupValue (MEDIAN)
Part 1: 40 mg QDPart 1 and Part 2: Progression-free Survival (PFS)CLL/SLL61.4 Months
Part 1: 40 mg QDPart 1 and Part 2: Progression-free Survival (PFS)WMNA Months
Part 1: 40 mg QDPart 1 and Part 2: Progression-free Survival (PFS)MCL27.6 Months
Part 1: 40 mg QDPart 1 and Part 2: Progression-free Survival (PFS)MZLNA Months
Part 1: 40 mg QDPart 1 and Part 2: Progression-free Survival (PFS)FL10.4 Months
Part 1: 40 mg QDPart 1 and Part 2: Progression-free Survival (PFS)DLBCL4.1 Months
Part 1: 40 mg QDPart 1 and Part 2: Progression-free Survival (PFS)RT17.3 Months
Part 1: 40 mg QDPart 1 and Part 2: Progression-free Survival (PFS)HCLNA Months
Secondary

Part 1 and Part 2: Time to Maximum Observed Plasma Concentration (Tmax) of Zanubrutinib

Time frame: Week 2 Day 1 pre-dose and 24 hours

Population: The PK analysis set included all participants for whom valid zanubrutinib PK parameters could be estimated, shown as overall number analyzed. Only participants with available data per dose were included in the analysis.

ArmMeasureValue (MEDIAN)
Part 1: 40 mg QDPart 1 and Part 2: Time to Maximum Observed Plasma Concentration (Tmax) of Zanubrutinib2.00 Hours
Part 1: 80 mg QDPart 1 and Part 2: Time to Maximum Observed Plasma Concentration (Tmax) of Zanubrutinib2.50 Hours
Part 1: 160 mg QDPart 1 and Part 2: Time to Maximum Observed Plasma Concentration (Tmax) of Zanubrutinib2.00 Hours
Parts 1 and 2: 160 mg BIDPart 1 and Part 2: Time to Maximum Observed Plasma Concentration (Tmax) of Zanubrutinib2.00 Hours
Parts 1 and 2: 320 mg QDPart 1 and Part 2: Time to Maximum Observed Plasma Concentration (Tmax) of Zanubrutinib2.00 Hours
Secondary

Part 1 and Part 2: Time to Maximum Observed Plasma Concentration (Tmax) of Zanubrutinib

Time frame: Week 1 Day 1 pre-dose, 0.5, 1, 2, 3, 4, and 8 hours

Population: The PK analysis set included all participants for whom valid zanubrutinib PK parameters could be estimated, shown as overall number analyzed. Only participants with available data per dose were included in the analysis.

ArmMeasureValue (MEDIAN)
Part 1: 40 mg QDPart 1 and Part 2: Time to Maximum Observed Plasma Concentration (Tmax) of Zanubrutinib1.00 Hours
Part 1: 80 mg QDPart 1 and Part 2: Time to Maximum Observed Plasma Concentration (Tmax) of Zanubrutinib2.00 Hours
Part 1: 160 mg QDPart 1 and Part 2: Time to Maximum Observed Plasma Concentration (Tmax) of Zanubrutinib1.92 Hours
Parts 1 and 2: 160 mg BIDPart 1 and Part 2: Time to Maximum Observed Plasma Concentration (Tmax) of Zanubrutinib2.00 Hours
Parts 1 and 2: 320 mg QDPart 1 and Part 2: Time to Maximum Observed Plasma Concentration (Tmax) of Zanubrutinib2.00 Hours

Source: ClinicalTrials.gov · Data processed: Feb 27, 2026