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A Study to Evaluate the Effect of Pirtobrutinib (LOXO-305) on QTc Interval in Healthy Participants

A Phase I, Single-Dose, Randomized, Partially Double-Blind, Placebo- and Positive-Controlled, 3-Way Crossover Study to Evaluate the Effect of LOXO-305 on QTc Interval in Healthy Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06215521
Enrollment
31
Registered
2024-01-22
Start date
2020-12-15
Completion date
2021-03-31
Last updated
2025-02-24

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

Conditions

Healthy

Brief summary

The main purpose of this study is to assess the effect of Pirtobrutinib (LOXO-305) on the heart rate-corrected QT (QTc) interval and to conduct blood tests to measure how much pirtobrutinib (LOXO-305) is in the bloodstream and how the body handles and eliminates pirtobrutinib. The study will also evaluate the safety and tolerability of pirtobrutinib. The study will last up to 71 days, including screening.

Interventions

DRUGPirtobrutinib

Administered orally

DRUGPlacebo

Administered orally

DRUGMoxifloxacin

Administered orally

Sponsors

Loxo Oncology, Inc.
CollaboratorINDUSTRY
Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
DOUBLE (Subject, Investigator)

Masking description

This is a partially double-blind study (for LOXO-305 only, not moxifloxacin).

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Must have Body mass index (BMI) within the range of 18.0 to 32.0 kilograms per square meter (kg/m²), inclusive at Screening * Male and female participants in good health, determined by no clinically significant findings from medical history, 12-lead Electrocardiogram (ECG), vital sign measurements, or clinical laboratory evaluations as assessed by the investigator * Female participants of non-childbearing potential and male participants who follow standard contraceptive methods * Must have comply with all study procedures, including the 15-night stay at the Clinical Research Unit (CRU) and follow-up phone call

Exclusion criteria

* History or presence of any diseases or conditions of clinical significance by the Investigator (or designee) and/or Sponsor * Positive serologic test for hepatitis B surface antigen (HBsAg), hepatitis B virus immunoglobulin M (HBV IgM) core antibody, hepatitis C virus (HCV) antibody, or human immunodeficiency virus (HIV) antibody at Screening. * Positive polymerase chain reaction (PCR) test for COVID-19 at Screening * Known ongoing alcohol and/or drug abuse within 2 years prior to Screening * History of significant hypersensitivity, intolerance, or allergy to any drug compound, food, or other substance, unless approved by the Investigator (or designee) * Have previously received pirtobrutinib (LOXO-305) in any other study investigating pirtobrutinib (LOXO-305), within 30 days prior to Day 1

Design outcomes

Primary

MeasureTime frameDescription
Placebo-corrected Change From Baseline in QT Interval Corrected Using Fridericia's Correction (QTcF) (ΔΔQTcF)Baseline (Predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-doseThe cardiodynamic assessment was performed through 12-lead electrocardiogram (ECG) extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. The QT interval is the time from electrocardiogram Q wave to the end of the T wave corresponding to electrical systole. QT interval was corrected for heart rate using QTcF. Placebo-corrected change from baseline in QTcF (ΔΔQTcF) was calculated based on model-predicted effect.

Secondary

MeasureTime frameDescription
Change From Baseline in Heart Rate (ΔHR)Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-doseHeart rate is the number of times the ventricles of the heart contract and relax per minute. Change from baseline in heart rate (ΔHR) was calculated using linear mixed-effects model analysis.
Change From Baseline in Pulse Rate (ΔPR)Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-dosePulse rate is number of times heart beats per minute. Pulse rate measurements were performed using the same arm for each reading and measurements were taken after the participant had been resting in the supine position for at least 5 minutes. Change from baseline in pulse rate (ΔPR) was calculated using linear mixed-effects model analysis.
Change From Baseline in QRS Intervals (Δ QRS)Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-doseQRS interval in an ECG measured the total time of ventricular depolarization. It begins with Q or R wave and ends at the end of the S wave. Change from baseline in QRS intervals (Δ QRS) was calculated using linear mixed-effects model analysis.
Change From Baseline in Individualized Heart Rate-Corrected QT Interval (ΔQTcS), If a Substantial Heart Rate Effect Was ObservedBaseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-doseThe cardiodynamic assessment was performed through 12-lead ECG extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. The QT interval is the time from electrocardiogram Q wave to the end of the T wave corresponding to electrical systole. QT interval was corrected for heart rate using QTcS.
Change From Baseline in Optimized Heart Rate-Corrected QT Interval (ΔQTcI), If a Substantial Heart Rate Effect Was ObservedBaseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-doseThe cardiodynamic assessment was performed through 12-lead ECG extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. The QT interval is the time from electrocardiogram Q wave to the end of the T wave corresponding to electrical systole. QT interval was corrected for heart rate using QTcI.
Placebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-doseHeart rate is the number of times the ventricles of the heart contract and relax per minute. Placebo-corrected change from baseline in heart rate (ΔΔHR) was calculated using linear mixed-effects model analysis.
Placebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-dosePulse rate is number of times heart beats per minute. Pulse rate measurements were performed using the same arm for each reading and measurements were taken after the participant had been resting in the supine position for at least 5 minutes. Placebo-corrected change from baseline in pulse rate (ΔPR) was calculated using linear mixed-effects model analysis.
Placebo-Corrected Change From Baseline in QRS (ΔΔQRS)Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-doseQRS interval in an ECG measured the total time of ventricular depolarization. It begins with Q or R wave and ends at the end of the S wave. Placebo-corrected change from baseline in QRS intervals (ΔΔQRS) was calculated using linear mixed-effects model analysis.
Placebo-corrected Change From Baseline in ΔQTcF (ΔΔQTcF), If a Substantial Heart Rate Effect Was ObservedBaseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-doseThe cardiodynamic assessment was performed through 12-lead ECG extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. The QT interval is the time from electrocardiogram Q wave to the end of the T wave corresponding to electrical systole. QT interval was corrected for heart rate using QTcF.
Placebo-corrected Change From Baseline in Individualized Heart Rate-Corrected QT Interval (ΔΔQTcS), If a Substantial Heart Rate Effect Was ObservedBaseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-doseThe cardiodynamic assessment was performed through 12-lead ECG extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. The QT interval is the time from electrocardiogram Q wave to the end of the T wave corresponding to electrical systole. QT interval was corrected for heart rate using QTcS.
Placebo-corrected Change From Baseline in Optimized Heart Rate-Corrected QT Interval (ΔΔQTcI), If a Substantial Heart Rate Effect Was ObservedBaseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-doseThe cardiodynamic assessment was performed through 12-lead ECG extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. The QT interval is the time from electrocardiogram Q wave to the end of the T wave corresponding to electrical systole. QT interval was corrected for heart rate using QTcI.
Number of Participants With Potentially Clinically Significant Electrocardiogram (ECG) ChangesBaseline up to Day 33The cardiodynamic assessment was performed through 12-lead ECG extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. Number of participants with potentially clinically significant ECG changes were reported.
Change From Baseline in (Δ) QTcFBaseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-doseThe cardiodynamic assessment was performed through 12-lead ECG extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. The QT interval is the time from electrocardiogram Q wave to the end of the T wave corresponding to electrical systole. QT interval was corrected for heart rate using QTcF. Change from baseline in (Δ) QTcF was calculated using linear mixed-effects model analysis.
Pharmacokinetic (PK): Percentage of AUC0-inf Extrapolated (AUC%Extrap) of PirtobrutinibPre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dosePK: %AUCextrap was defined as percentage extrapolation for AUC0-inf.
PK: Mean Residence Time (MRT) of PirtobrutinibPre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dosePK: MRT was calculated by the area under the first moment curve divided by the area under the concentration time curve.
PK: Apparent Volume of Distribution at the Terminal Phase (Vz/F) of PirtobrutinibPre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dosePK: Vz/F was defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Vz/F was calculated as (CL/F)/Lambda Z. Where, CL/F is the apparent total clearance and lambda Z is the apparent terminal elimination rate constant.
PK: Time to Maximum Observed Plasma Concentration (Tmax) of PirtobrutinibPre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dosePK: Tmax was defined as the time to reach maximum observed plasma concentration (Cmax) for pirtobrutinib.
PK: Apparent Plasma Terminal Elimination Half-life (t1/2) of PirtobrutinibPre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dosePK: t1/2 was defined as the terminal elimination phase half-life for pirtobrutinib.
PK: Maximum Observed Concentration (Cmax) of PirtobrutinibPre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dosePK: Cmax was defined as the maximum plasma concentration for pirtobrutinib.
PK: Area Under the Concentration-time Curve, From Time 0 to 24 Hours Post-dose (AUC0-24) of PirtobrutinibPre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24 hours post-dosePK: AUC(0-24) was defined as the area under the plasma concentration-time curve from 0 time to 24 hours post-dose.
PK: Area Under the Concentration-time Curve, From Time 0 to the Last Measurable Concentration (AUC0-t) of PirtobrutinibPre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dosePK: AUC(0-t) was defined as the area under the plasma concentration-time curve from 0 time to last measurable point for pirtobrutinib.
PK: Apparent Systemic Clearance (CL/F) of PirtobrutinibPre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dosePK: Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. CL/F was calculated as (Dose/AUC(0-inf))/F. Where AUC(0-inf) is the area under the plasma concentration-time curve from zero to infinity and F is the bioavailability of the drug.
PK: Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of PirtobrutinibPre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dosePK: AUC(0-inf) was defined as the area under the plasma concentration-time curve from 0 to infinity for pirtobrutinib.
PK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibPre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dosePK: Terminal elimination rate constant, calculated as the negative of the slope of the log-linear regression of the natural logarithm concentration-time curve during the terminal phase.
Number of Participants With Treatment Emergent Changes in T-wave Morphology and U-wave PresenceBaseline up to Day 33The cardiodynamic assessment was performed through 12-lead ECG extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. Number of participants with treatment emergent changes in T-wave morphology and U-wave presence were reported.

Countries

United States

Participant flow

Pre-assignment details

A total of 31 participants were enrolled in this study. Participants were randomly assigned to 1 of 6 treatment sequences (ABC, BCA, CAB, ACB, CBA and BAC) where Treatment A was single oral dose of 900 milligrams (mg) pirtobrutinib, Treatment B was single oral dose of 900 mg pirtobrutinib matched placebo and Treatment C was single oral dose of 400 mg moxifloxacin.

Participants by arm

ArmCount
Treatment Sequence: ABC
Participants received a single oral dose of 900 mg pirtobrutinib (Treatment A) on Day 1, followed by a single oral dose of 900 mg pirtobrutinib matched placebo (Treatment B) on Day 12 and a single oral dose of 400 mg moxifloxacin (Treatment C) on Day 23, under fasted conditions
5
Treatment Sequence: BCA
Participants received a single oral dose of 900 mg pirtobrutinib matched placebo (Treatment B) on Day 1, followed by a single oral dose of 400 mg moxifloxacin (Treatment C) on Day 12 and a single oral dose of 900 mg pirtobrutinib (Treatment A) on Day 23, under fasted conditions.
6
Treatment Sequence: CAB
Participants received a single oral dose of 400 mg moxifloxacin (Treatment C) on Day 1, followed by a single oral dose of 900 mg pirtobrutinib (Treatment A) on Day 12 and a single oral dose of 900 mg pirtobrutinib matched placebo (Treatment B) on Day 23, under fasted conditions.
5
Treatment Sequence: ACB
Participants received a single oral dose of 900 mg pirtobrutinib (Treatment A) on Day 1, followed by a single oral dose of 400 mg moxifloxacin (Treatment C) on Day 12 and a single oral dose of 900 mg pirtobrutinib matched placebo (Treatment B) on Day 23, under fasted conditions.
5
Treatment Sequence: CBA
Participants received a single oral dose of 400 mg moxifloxacin (Treatment C) on Day 1, followed by a single oral dose of 900 mg pirtobrutinib matched placebo (Treatment B) on Day 12 and a single oral dose of 900 mg pirtobrutinib (Treatment A) on Day 23, under fasted conditions.
5
Treatment Sequence: BAC
Participants received a single oral dose of 900 mg pirtobrutinib matched placebo (Treatment B) on Day 1, followed by a single oral dose of 900 mg pirtobrutinib (Treatment A) on Day 12 and a single oral dose of 400 mg moxifloxacin (Treatment C) on Day 23, under fasted conditions.
5
Total31

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Treatment Period 1 (Day 1)Adverse Event010000

Baseline characteristics

CharacteristicTreatment Sequence: BCATreatment Sequence: ABCTreatment Sequence: CABTreatment Sequence: ACBTreatment Sequence: CBATreatment Sequence: BACTotal
Age, Continuous39.0 years
STANDARD_DEVIATION 8.81
35.0 years
STANDARD_DEVIATION 9.87
37.8 years
STANDARD_DEVIATION 7.95
35.6 years
STANDARD_DEVIATION 7.86
34.4 years
STANDARD_DEVIATION 6.77
38.2 years
STANDARD_DEVIATION 10.01
36.7 years
STANDARD_DEVIATION 8.08
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants1 Participants1 Participants2 Participants1 Participants3 Participants8 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
6 Participants4 Participants4 Participants3 Participants4 Participants2 Participants23 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
Asian
0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
Black or African American
4 Participants4 Participants2 Participants1 Participants1 Participants2 Participants14 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
2 Participants0 Participants3 Participants3 Participants3 Participants3 Participants14 Participants
Region of Enrollment
United States
6 Participants5 Participants5 Participants5 Participants5 Participants5 Participants31 Participants
Sex: Female, Male
Female
2 Participants1 Participants2 Participants0 Participants0 Participants2 Participants7 Participants
Sex: Female, Male
Male
4 Participants4 Participants3 Participants5 Participants5 Participants3 Participants24 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 300 / 310 / 30
other
Total, other adverse events
6 / 301 / 311 / 30
serious
Total, serious adverse events
0 / 300 / 310 / 30

Outcome results

Primary

Placebo-corrected Change From Baseline in QT Interval Corrected Using Fridericia's Correction (QTcF) (ΔΔQTcF)

The cardiodynamic assessment was performed through 12-lead electrocardiogram (ECG) extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. The QT interval is the time from electrocardiogram Q wave to the end of the T wave corresponding to electrical systole. QT interval was corrected for heart rate using QTcF. Placebo-corrected change from baseline in QTcF (ΔΔQTcF) was calculated based on model-predicted effect.

Time frame: Baseline (Predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-dose

Population: Pharmacokinetic/Corrected QT interval (PK/QTc) population included all participants who were in both the PK and QT/QTc populations with at least 1 pair of post-dose PK and ΔQTc data from the same time point in at least 1 period as well as participants in the QT/QTc population who received placebo. As per planned analysis, data was planned to be reported only for Treatment A (900 mg pirtobrutinib) concentration for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in QT Interval Corrected Using Fridericia's Correction (QTcF) (ΔΔQTcF)0.73 milliseconds (msec)
Secondary

Change From Baseline in Heart Rate (ΔHR)

Heart rate is the number of times the ventricles of the heart contract and relax per minute. Change from baseline in heart rate (ΔHR) was calculated using linear mixed-effects model analysis.

Time frame: Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-dose

Population: QT/QTc population included all participants who received 1 dose of study drug with measurements at baseline as well as on treatment with at least 1 post-dose time point with a valid ΔQTc value. Here, 'Number Analyzed' signifies participants who were evaluable at specific timepoints. As per planned analysis, data was planned to be reported only for Treatment A and B for this outcome measure.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Heart Rate (ΔHR)Change at 0.75 hour post-dose0.0 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Heart Rate (ΔHR)Change at 3 hours post-dose1.3 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Heart Rate (ΔHR)Change at 1.5 hours post-dose0.9 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Heart Rate (ΔHR)Change at 4 hours post-dose1.4 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Heart Rate (ΔHR)Change at 0.5 hour post-dose-0.5 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Heart Rate (ΔHR)Change at 6 hours post-dose2.0 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Heart Rate (ΔHR)Change at 2 hours post-dose0.5 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Heart Rate (ΔHR)Change at 8.5 hours post-dose4.0 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Heart Rate (ΔHR)Change at 1 hour post-dose1.0 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Heart Rate (ΔHR)Change at 12 hours post-dose2.0 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Heart Rate (ΔHR)Change at 2.5 hours post-dose2.2 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Heart Rate (ΔHR)Change at 24 hours post-dose1.2 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Heart Rate (ΔHR)Change at 0.25 hour post-dose0.1 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Heart Rate (ΔHR)Change at 24 hours post-dose0.8 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Heart Rate (ΔHR)Change at 0.25 hour post-dose-0.9 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Heart Rate (ΔHR)Change at 0.5 hour post-dose-1.2 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Heart Rate (ΔHR)Change at 0.75 hour post-dose-0.4 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Heart Rate (ΔHR)Change at 1 hour post-dose-0.1 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Heart Rate (ΔHR)Change at 1.5 hours post-dose-1.7 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Heart Rate (ΔHR)Change at 2 hours post-dose-0.8 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Heart Rate (ΔHR)Change at 2.5 hours post-dose-0.1 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Heart Rate (ΔHR)Change at 3 hours post-dose0.4 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Heart Rate (ΔHR)Change at 4 hours post-dose0.4 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Heart Rate (ΔHR)Change at 6 hours post-dose0.5 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Heart Rate (ΔHR)Change at 8.5 hours post-dose3.4 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Heart Rate (ΔHR)Change at 12 hours post-dose0.4 beats per minute (beats/min)
Secondary

Change From Baseline in Individualized Heart Rate-Corrected QT Interval (ΔQTcS), If a Substantial Heart Rate Effect Was Observed

The cardiodynamic assessment was performed through 12-lead ECG extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. The QT interval is the time from electrocardiogram Q wave to the end of the T wave corresponding to electrical systole. QT interval was corrected for heart rate using QTcS.

Time frame: Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-dose

Population: QT/QTc population included all participants who received 1 dose of study drug with measurements at baseline as well as on treatment with at least 1 post-dose time point with a valid ΔQTc value. As per planned analysis, data was planned to be reported only for Treatment A and B for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Individualized Heart Rate-Corrected QT Interval (ΔQTcS), If a Substantial Heart Rate Effect Was ObservedNA msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Individualized Heart Rate-Corrected QT Interval (ΔQTcS), If a Substantial Heart Rate Effect Was ObservedNA msec
Secondary

Change From Baseline in Optimized Heart Rate-Corrected QT Interval (ΔQTcI), If a Substantial Heart Rate Effect Was Observed

The cardiodynamic assessment was performed through 12-lead ECG extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. The QT interval is the time from electrocardiogram Q wave to the end of the T wave corresponding to electrical systole. QT interval was corrected for heart rate using QTcI.

Time frame: Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-dose

Population: QT/QTc population included all participants who received 1 dose of study drug with measurements at baseline as well as on treatment with at least 1 post-dose time point with a valid ΔQTc value. As per planned analysis, data was planned to be reported only for Treatment A and B for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Optimized Heart Rate-Corrected QT Interval (ΔQTcI), If a Substantial Heart Rate Effect Was ObservedNA msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Optimized Heart Rate-Corrected QT Interval (ΔQTcI), If a Substantial Heart Rate Effect Was ObservedNA msec
Secondary

Change From Baseline in Pulse Rate (ΔPR)

Pulse rate is number of times heart beats per minute. Pulse rate measurements were performed using the same arm for each reading and measurements were taken after the participant had been resting in the supine position for at least 5 minutes. Change from baseline in pulse rate (ΔPR) was calculated using linear mixed-effects model analysis.

Time frame: Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-dose

Population: QT/QTc population included all participants who received 1 dose of study drug with measurements at baseline as well as on treatment with at least 1 post-dose time point with a valid ΔQTc value. Here, 'Number Analyzed' signifies participants evaluable for specific timepoints. As per planned analysis, data was planned to be reported only for Treatment A and B for this outcome measure.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Pulse Rate (ΔPR)Change at 0.75 hour post-dose0.3 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Pulse Rate (ΔPR)Change at 3 hours post-dose-0.9 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Pulse Rate (ΔPR)Change at 1.5 hours post-dose-0.9 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Pulse Rate (ΔPR)Change at 4 hours post-dose-1.6 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Pulse Rate (ΔPR)Change at 0.5 hour post-dose0.3 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Pulse Rate (ΔPR)Change at 6 hours post-dose-4.4 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Pulse Rate (ΔPR)Change at 2 hours post-dose-0.5 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Pulse Rate (ΔPR)Change at 8.5 hours post-dose-6.2 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Pulse Rate (ΔPR)Change at 1 hour post-dose-0.1 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Pulse Rate (ΔPR)Change at 12 hours post-dose-4.9 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Pulse Rate (ΔPR)Change at 2.5 hours post-dose-3.9 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Pulse Rate (ΔPR)Change at 24 hours post-dose-4.2 beats per minute (beats/min)
Treatment A: 900 mg PirtobrutinibChange From Baseline in Pulse Rate (ΔPR)Change at 0.25 hour post-dose-2.6 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Pulse Rate (ΔPR)Change at 24 hours post-dose-0.6 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Pulse Rate (ΔPR)Change at 0.25 hour post-dose-0.8 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Pulse Rate (ΔPR)Change at 0.5 hour post-dose1.5 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Pulse Rate (ΔPR)Change at 0.75 hour post-dose1.0 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Pulse Rate (ΔPR)Change at 1 hour post-dose0.7 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Pulse Rate (ΔPR)Change at 1.5 hours post-dose-1.2 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Pulse Rate (ΔPR)Change at 2 hours post-dose-0.5 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Pulse Rate (ΔPR)Change at 2.5 hours post-dose-0.8 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Pulse Rate (ΔPR)Change at 3 hours post-dose-1.3 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Pulse Rate (ΔPR)Change at 4 hours post-dose-2.3 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Pulse Rate (ΔPR)Change at 6 hours post-dose-2.7 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Pulse Rate (ΔPR)Change at 8.5 hours post-dose-5.1 beats per minute (beats/min)
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in Pulse Rate (ΔPR)Change at 12 hours post-dose-2.8 beats per minute (beats/min)
Secondary

Change From Baseline in QRS Intervals (Δ QRS)

QRS interval in an ECG measured the total time of ventricular depolarization. It begins with Q or R wave and ends at the end of the S wave. Change from baseline in QRS intervals (Δ QRS) was calculated using linear mixed-effects model analysis.

Time frame: Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-dose

Population: QT/QTc population included all participants who received 1 dose of study drug with measurements at baseline as well as on treatment with at least 1 post-dose time point with a valid ΔQTc value. Here, 'Number Analyzed' signifies participants evaluable for specific timepoints. As per planned analysis, data was planned to be reported only for Treatment A and B for this outcome measure.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Treatment A: 900 mg PirtobrutinibChange From Baseline in QRS Intervals (Δ QRS)Change at 0.75 hour post-dose0.2 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in QRS Intervals (Δ QRS)Change at 3 hours post-dose0.2 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in QRS Intervals (Δ QRS)Change at 1.5 hours post-dose-0.1 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in QRS Intervals (Δ QRS)Change at 4 hours post-dose0.2 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in QRS Intervals (Δ QRS)Change at 0.5 hour post-dose0.2 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in QRS Intervals (Δ QRS)Change at 6 hours post-dose0.7 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in QRS Intervals (Δ QRS)Change at 2 hours post-dose0.0 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in QRS Intervals (Δ QRS)Change at 8.5 hours post-dose-0.6 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in QRS Intervals (Δ QRS)Change at 1 hour post-dose0.2 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in QRS Intervals (Δ QRS)Change at 12 hours post-dose0.4 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in QRS Intervals (Δ QRS)Change at 2.5 hours post-dose-0.1 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in QRS Intervals (Δ QRS)Change at 24 hours post-dose0.2 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in QRS Intervals (Δ QRS)Change at 0.25 hour post-dose0.0 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in QRS Intervals (Δ QRS)Change at 24 hours post-dose-1.0 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in QRS Intervals (Δ QRS)Change at 0.25 hour post-dose0.0 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in QRS Intervals (Δ QRS)Change at 0.5 hour post-dose-0.1 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in QRS Intervals (Δ QRS)Change at 0.75 hour post-dose0.0 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in QRS Intervals (Δ QRS)Change at 1 hour post-dose-0.1 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in QRS Intervals (Δ QRS)Change at 1.5 hours post-dose-0.1 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in QRS Intervals (Δ QRS)Change at 2 hours post-dose-0.1 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in QRS Intervals (Δ QRS)Change at 2.5 hours post-dose-0.1 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in QRS Intervals (Δ QRS)Change at 3 hours post-dose-0.1 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in QRS Intervals (Δ QRS)Change at 4 hours post-dose0.1 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in QRS Intervals (Δ QRS)Change at 6 hours post-dose0.2 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in QRS Intervals (Δ QRS)Change at 8.5 hours post-dose0.1 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in QRS Intervals (Δ QRS)Change at 12 hours post-dose0.3 msec
Secondary

Change From Baseline in (Δ) QTcF

The cardiodynamic assessment was performed through 12-lead ECG extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. The QT interval is the time from electrocardiogram Q wave to the end of the T wave corresponding to electrical systole. QT interval was corrected for heart rate using QTcF. Change from baseline in (Δ) QTcF was calculated using linear mixed-effects model analysis.

Time frame: Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-dose

Population: QT/QTc population included all participants who received 1 dose of study drug with measurements at baseline as well as on treatment with at least 1 post-dose time point with a valid ΔQTc value. Here, 'Number Analyzed' signifies participants who were evaluable at specific timepoints.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Treatment A: 900 mg PirtobrutinibChange From Baseline in (Δ) QTcFChange at 12 hours post-dose1.2 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in (Δ) QTcFChange at 4 hours post-dose2.2 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in (Δ) QTcFChange at 2 hours post-dose-2.2 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in (Δ) QTcFChange at 0.75 hour post-dose-3.8 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in (Δ) QTcFChange at 3 hours post-dose0.3 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in (Δ) QTcFChange at 2.5 hours post-dose-0.2 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in (Δ) QTcFChange at 0.25 hour post-dose-0.4 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in (Δ) QTcFChange at 0.5 hour post-dose-4.5 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in (Δ) QTcFChange at 8.5 hours post-dose-5.1 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in (Δ) QTcFChange at 1 hour post-dose-2.8 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in (Δ) QTcFChange at 24 hours post-dose0.0 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in (Δ) QTcFChange at 6 hours post-dose3.5 msec
Treatment A: 900 mg PirtobrutinibChange From Baseline in (Δ) QTcFChange at 1.5 hours post-dose-0.6 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in (Δ) QTcFChange at 2.5 hours post-dose0.2 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in (Δ) QTcFChange at 0.25 hour post-dose0.0 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in (Δ) QTcFChange at 0.5 hour post-dose-2.8 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in (Δ) QTcFChange at 0.75 hour post-dose-2.0 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in (Δ) QTcFChange at 1 hour post-dose-1.2 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in (Δ) QTcFChange at 1.5 hours post-dose-1.0 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in (Δ) QTcFChange at 2 hours post-dose-1.1 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in (Δ) QTcFChange at 3 hours post-dose0.5 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in (Δ) QTcFChange at 4 hours post-dose0.3 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in (Δ) QTcFChange at 6 hours post-dose0.9 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in (Δ) QTcFChange at 8.5 hours post-dose-5.2 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in (Δ) QTcFChange at 12 hours post-dose0.6 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboChange From Baseline in (Δ) QTcFChange at 24 hours post-dose0.6 msec
Treatment C: 400 mg MoxifloxacinChange From Baseline in (Δ) QTcFChange at 4 hours post-dose9.8 msec
Treatment C: 400 mg MoxifloxacinChange From Baseline in (Δ) QTcFChange at 1 hour post-dose8.3 msec
Treatment C: 400 mg MoxifloxacinChange From Baseline in (Δ) QTcFChange at 12 hours post-dose6.8 msec
Treatment C: 400 mg MoxifloxacinChange From Baseline in (Δ) QTcFChange at 6 hours post-dose9.3 msec
Treatment C: 400 mg MoxifloxacinChange From Baseline in (Δ) QTcFChange at 0.75 hour post-dose7.6 msec
Treatment C: 400 mg MoxifloxacinChange From Baseline in (Δ) QTcFChange at 0.25 hour post-dose-0.1 msec
Treatment C: 400 mg MoxifloxacinChange From Baseline in (Δ) QTcFChange at 8.5 hours post-dose2.8 msec
Treatment C: 400 mg MoxifloxacinChange From Baseline in (Δ) QTcFChange at 2.5 hours post-dose10.1 msec
Treatment C: 400 mg MoxifloxacinChange From Baseline in (Δ) QTcFChange at 2 hours post-dose9.4 msec
Treatment C: 400 mg MoxifloxacinChange From Baseline in (Δ) QTcFChange at 0.5 hour post-dose4.2 msec
Treatment C: 400 mg MoxifloxacinChange From Baseline in (Δ) QTcFChange at 3 hours post-dose9.9 msec
Treatment C: 400 mg MoxifloxacinChange From Baseline in (Δ) QTcFChange at 1.5 hours post-dose9.8 msec
Treatment C: 400 mg MoxifloxacinChange From Baseline in (Δ) QTcFChange at 24 hours post-dose5.0 msec
Secondary

Number of Participants With Potentially Clinically Significant Electrocardiogram (ECG) Changes

The cardiodynamic assessment was performed through 12-lead ECG extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. Number of participants with potentially clinically significant ECG changes were reported.

Time frame: Baseline up to Day 33

Population: The safety population included all participants who received 1 dose of study drug. As per planned analysis, data was planned to be reported only for Treatment A and B for this outcome measure.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment A: 900 mg PirtobrutinibNumber of Participants With Potentially Clinically Significant Electrocardiogram (ECG) Changes0 Participants
Treatment B: 900 mg Pirtobrutinib Matched PlaceboNumber of Participants With Potentially Clinically Significant Electrocardiogram (ECG) Changes0 Participants
Secondary

Number of Participants With Treatment Emergent Changes in T-wave Morphology and U-wave Presence

The cardiodynamic assessment was performed through 12-lead ECG extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. Number of participants with treatment emergent changes in T-wave morphology and U-wave presence were reported.

Time frame: Baseline up to Day 33

Population: The safety population included all participants who received 1 dose of study drug. As per planned analysis, data was planned to be reported only for Treatment A and B for this outcome measure.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Treatment A: 900 mg PirtobrutinibNumber of Participants With Treatment Emergent Changes in T-wave Morphology and U-wave PresenceTreatment Emergent Changes in T-wave Morphology0 Participants
Treatment A: 900 mg PirtobrutinibNumber of Participants With Treatment Emergent Changes in T-wave Morphology and U-wave PresenceTreatment Emergent Changes in U-wave Presence0 Participants
Treatment B: 900 mg Pirtobrutinib Matched PlaceboNumber of Participants With Treatment Emergent Changes in T-wave Morphology and U-wave PresenceTreatment Emergent Changes in T-wave Morphology0 Participants
Treatment B: 900 mg Pirtobrutinib Matched PlaceboNumber of Participants With Treatment Emergent Changes in T-wave Morphology and U-wave PresenceTreatment Emergent Changes in U-wave Presence0 Participants
Secondary

Pharmacokinetic (PK): Percentage of AUC0-inf Extrapolated (AUC%Extrap) of Pirtobrutinib

PK: %AUCextrap was defined as percentage extrapolation for AUC0-inf.

Time frame: Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dose

Population: PK population included participants who received 1 dose of pirtobrutinib and have at least 1 quantifiable plasma concentration of pirtobrutinib and have evaluable PK data. As per planned analysis, data was planned to be reported only for Treatment A for this outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment A: 900 mg PirtobrutinibPharmacokinetic (PK): Percentage of AUC0-inf Extrapolated (AUC%Extrap) of Pirtobrutinib5.41 percentage of AUCGeometric Coefficient of Variation 42
Secondary

PK: Apparent Plasma Terminal Elimination Half-life (t1/2) of Pirtobrutinib

PK: t1/2 was defined as the terminal elimination phase half-life for pirtobrutinib.

Time frame: Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dose

Population: PK population included participants who received 1 dose of pirtobrutinib and have at least 1 quantifiable plasma concentration of pirtobrutinib and have evaluable PK data. As per planned analysis, data was planned to be reported only for Treatment A for this outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment A: 900 mg PirtobrutinibPK: Apparent Plasma Terminal Elimination Half-life (t1/2) of Pirtobrutinib23.0 hoursGeometric Coefficient of Variation 14.5
Secondary

PK: Apparent Systemic Clearance (CL/F) of Pirtobrutinib

PK: Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. CL/F was calculated as (Dose/AUC(0-inf))/F. Where AUC(0-inf) is the area under the plasma concentration-time curve from zero to infinity and F is the bioavailability of the drug.

Time frame: Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dose

Population: PK population included participants who received 1 dose of pirtobrutinib and have at least 1 quantifiable plasma concentration of pirtobrutinib and have evaluable PK data. As per planned analysis, data was planned to be reported only for Treatment A for this outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment A: 900 mg PirtobrutinibPK: Apparent Systemic Clearance (CL/F) of Pirtobrutinib1.88 liter per hour (L/h)Geometric Coefficient of Variation 21.4
Secondary

PK: Apparent Terminal Elimination Rate Constant (λZ) of Pirtobrutinib

PK: Terminal elimination rate constant, calculated as the negative of the slope of the log-linear regression of the natural logarithm concentration-time curve during the terminal phase.

Time frame: Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dose

Population: PK population included participants who received 1 dose of pirtobrutinib and have at least 1 quantifiable plasma concentration of pirtobrutinib and have evaluable PK data. Here, 'Overall Number of participants analyzed' signifies individual participants who were evaluable for rate constant evaluation. As per planned analysis, data was planned to be reported only for Treatment A for this outcome measure.

ArmMeasureGroupValue (NUMBER)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 110.0271 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 120.0213 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 130.0337 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 260.0306 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 270.0364 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 280.0299 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 290.0304 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 10.0320 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 20.0270 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 30.0356 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 40.0259 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 50.0270 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 60.0330 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 70.0310 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 80.0331 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 90.0353 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 100.0322 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 140.0273 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 150.0229 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 160.0314 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 170.0364 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 180.0289 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 190.0309 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 200.0271 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 210.0269 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 220.0422 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 230.0346 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 240.0273 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 250.0288 one per hour (1/h)
Treatment A: 900 mg PirtobrutinibPK: Apparent Terminal Elimination Rate Constant (λZ) of PirtobrutinibParticipant 300.0283 one per hour (1/h)
Secondary

PK: Apparent Volume of Distribution at the Terminal Phase (Vz/F) of Pirtobrutinib

PK: Vz/F was defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Vz/F was calculated as (CL/F)/Lambda Z. Where, CL/F is the apparent total clearance and lambda Z is the apparent terminal elimination rate constant.

Time frame: Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dose

Population: PK population included participants who received 1 dose of pirtobrutinib and have at least 1 quantifiable plasma concentration of pirtobrutinib and have evaluable PK data. As per planned analysis, data was planned to be reported only for Treatment A for this outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment A: 900 mg PirtobrutinibPK: Apparent Volume of Distribution at the Terminal Phase (Vz/F) of Pirtobrutinib62.1 literGeometric Coefficient of Variation 22.5
Secondary

PK: Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of Pirtobrutinib

PK: AUC(0-inf) was defined as the area under the plasma concentration-time curve from 0 to infinity for pirtobrutinib.

Time frame: Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dose

Population: PK population included participants who received 1 dose of pirtobrutinib and have at least 1 quantifiable plasma concentration of pirtobrutinib and have evaluable PK data. As per planned analysis, data was planned to be reported only for Treatment A for this outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment A: 900 mg PirtobrutinibPK: Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of Pirtobrutinib480000 h*ng/mLGeometric Coefficient of Variation 21.4
Secondary

PK: Area Under the Concentration-time Curve, From Time 0 to 24 Hours Post-dose (AUC0-24) of Pirtobrutinib

PK: AUC(0-24) was defined as the area under the plasma concentration-time curve from 0 time to 24 hours post-dose.

Time frame: Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24 hours post-dose

Population: PK population included participants who received 1 dose of pirtobrutinib and have at least 1 quantifiable plasma concentration of pirtobrutinib and have evaluable PK data. As per planned analysis, data was planned to be reported only for Treatment A for this outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment A: 900 mg PirtobrutinibPK: Area Under the Concentration-time Curve, From Time 0 to 24 Hours Post-dose (AUC0-24) of Pirtobrutinib229000 hour*nanogram per milliliter (h*ng/mL)Geometric Coefficient of Variation 17.5
Secondary

PK: Area Under the Concentration-time Curve, From Time 0 to the Last Measurable Concentration (AUC0-t) of Pirtobrutinib

PK: AUC(0-t) was defined as the area under the plasma concentration-time curve from 0 time to last measurable point for pirtobrutinib.

Time frame: Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dose

Population: PK population included participants who received 1 dose of pirtobrutinib and have at least 1 quantifiable plasma concentration of pirtobrutinib and have evaluable PK data. As per planned analysis, data was planned to be reported only for Treatment A for this outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment A: 900 mg PirtobrutinibPK: Area Under the Concentration-time Curve, From Time 0 to the Last Measurable Concentration (AUC0-t) of Pirtobrutinib452000 h*ng/mLGeometric Coefficient of Variation 20.7
Secondary

PK: Maximum Observed Concentration (Cmax) of Pirtobrutinib

PK: Cmax was defined as the maximum plasma concentration for pirtobrutinib.

Time frame: Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dose

Population: PK population included participants who received 1 dose of pirtobrutinib and have at least 1 quantifiable plasma concentration of pirtobrutinib and have evaluable PK data. As per planned analysis, data was planned to be reported only for Treatment A for this outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment A: 900 mg PirtobrutinibPK: Maximum Observed Concentration (Cmax) of Pirtobrutinib14300 nanogram per milliliter (ng/mL)Geometric Coefficient of Variation 23.1
Secondary

PK: Mean Residence Time (MRT) of Pirtobrutinib

PK: MRT was calculated by the area under the first moment curve divided by the area under the concentration time curve.

Time frame: Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dose

Population: PK population included participants who received 1 dose of pirtobrutinib and have at least 1 quantifiable plasma concentration of pirtobrutinib and have evaluable PK data. As per planned analysis, data was planned to be reported only for Treatment A for this outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment A: 900 mg PirtobrutinibPK: Mean Residence Time (MRT) of Pirtobrutinib33.6 hoursGeometric Coefficient of Variation 14.6
Secondary

PK: Time to Maximum Observed Plasma Concentration (Tmax) of Pirtobrutinib

PK: Tmax was defined as the time to reach maximum observed plasma concentration (Cmax) for pirtobrutinib.

Time frame: Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12, 24, 48, 72, and 96 hours post-dose

Population: PK population included participants who received 1 dose of pirtobrutinib and have at least 1 quantifiable plasma concentration of pirtobrutinib and have evaluable PK data. As per planned analysis, data was planned to be reported only for Treatment A for this outcome measure.

ArmMeasureValue (MEDIAN)
Treatment A: 900 mg PirtobrutinibPK: Time to Maximum Observed Plasma Concentration (Tmax) of Pirtobrutinib4.01 hours
Secondary

Placebo-corrected Change From Baseline in Heart Rate (ΔΔHR)

Heart rate is the number of times the ventricles of the heart contract and relax per minute. Placebo-corrected change from baseline in heart rate (ΔΔHR) was calculated using linear mixed-effects model analysis.

Time frame: Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-dose

Population: QT/QTc population included all participants who received 1 dose of study drug with measurements at baseline as well as on treatment with at least 1 post-dose time point with a valid ΔQTc value. As per planned analysis, data was planned to be reported only for Treatment A and C for this outcome measure.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 0.5 hours post-dose0.6 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 2.5 hours post-dose2.3 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 1 hour post-dose1.2 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 3 hours post-dose0.9 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 0.25 hours post-dose0.9 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 4 hours post-dose1.0 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 1.5 hours post-dose2.6 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 6 hours post-dose1.6 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 0.75 hours post-dose0.4 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 12 hours post-dose1.6 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 2 hours post-dose1.3 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 24 hours post-dose0.4 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 8.5 hours post-dose0.6 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 24 hours post-dose1.0 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 8.5 hours post-dose1.5 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 0.25 hours post-dose0.1 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 0.5 hours post-dose3.0 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 0.75 hours post-dose3.8 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 1 hour post-dose4.2 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 1.5 hours post-dose2.8 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 2 hours post-dose2.5 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 2.5 hours post-dose2.9 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 3 hours post-dose1.1 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 4 hours post-dose1.9 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 6 hours post-dose2.6 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Heart Rate (ΔΔHR)Change at 12 hours post-dose4.5 beats/min
Secondary

Placebo-corrected Change From Baseline in Individualized Heart Rate-Corrected QT Interval (ΔΔQTcS), If a Substantial Heart Rate Effect Was Observed

The cardiodynamic assessment was performed through 12-lead ECG extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. The QT interval is the time from electrocardiogram Q wave to the end of the T wave corresponding to electrical systole. QT interval was corrected for heart rate using QTcS.

Time frame: Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-dose

Population: QT/QTc population included all participants w.ho received 1 dose of study drug with measurements at baseline as well as on treatment with at least 1 post-dose time point with a valid ΔQTc value. As per planned analysis, data was planned to be reported only for Treatment A and B for this outcome measure

ArmMeasureValue (LEAST_SQUARES_MEAN)
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Individualized Heart Rate-Corrected QT Interval (ΔΔQTcS), If a Substantial Heart Rate Effect Was ObservedNA msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Individualized Heart Rate-Corrected QT Interval (ΔΔQTcS), If a Substantial Heart Rate Effect Was ObservedNA msec
Secondary

Placebo-corrected Change From Baseline in Optimized Heart Rate-Corrected QT Interval (ΔΔQTcI), If a Substantial Heart Rate Effect Was Observed

The cardiodynamic assessment was performed through 12-lead ECG extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. The QT interval is the time from electrocardiogram Q wave to the end of the T wave corresponding to electrical systole. QT interval was corrected for heart rate using QTcI.

Time frame: Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-dose

Population: QT/QTc population included all participants who received 1 dose of study drug with measurements at baseline as well as on treatment with at least 1 post-dose time point with a valid ΔQTc value. As per planned analysis, data was planned to be reported only for Treatment A and B for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Optimized Heart Rate-Corrected QT Interval (ΔΔQTcI), If a Substantial Heart Rate Effect Was ObservedNA msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Optimized Heart Rate-Corrected QT Interval (ΔΔQTcI), If a Substantial Heart Rate Effect Was ObservedNA msec
Secondary

Placebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)

Pulse rate is number of times heart beats per minute. Pulse rate measurements were performed using the same arm for each reading and measurements were taken after the participant had been resting in the supine position for at least 5 minutes. Placebo-corrected change from baseline in pulse rate (ΔPR) was calculated using linear mixed-effects model analysis.

Time frame: Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-dose

Population: QT/QTc population included all participants who received 1 dose of study drug with measurements at baseline as well as on treatment with at least 1 post-dose time point with a valid ΔQTc value. As per planned analysis, data was planned to be reported only for Treatment A and C for this outcome measure.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 0.75 hours post-dose-0.7 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 3 hours post-dose0.4 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 1.5 hours post-dose0.3 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 4 hours post-dose0.7 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 0.5 hours post-dose-1.2 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 6 hours post-dose-1.8 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 2 hours post-dose0.0 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 8.5 hours post-dose-1.1 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 1 hours post-dose-0.7 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 12 hours post-dose-2.1 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 2.5 hours post-dose-3.1 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 24 hours post-dose-3.6 beats/min
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 0.25 hours post-dose-1.9 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 24 hours post-dose-0.8 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 0.25 hours post-dose-1.2 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 0.5 hours post-dose-2.1 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 0.75 hours post-dose-2.5 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 1 hours post-dose-3.8 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 1.5 hours post-dose-3.4 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 2 hours post-dose-3.6 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 2.5 hours post-dose-4.6 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 3 hours post-dose-4.0 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 4 hours post-dose-4.2 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 6 hours post-dose-4.3 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 8.5 hours post-dose-2.1 beats/min
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in Pulse Rate (ΔΔ PR)Change at 12 hours post-dose-3.5 beats/min
Secondary

Placebo-Corrected Change From Baseline in QRS (ΔΔQRS)

QRS interval in an ECG measured the total time of ventricular depolarization. It begins with Q or R wave and ends at the end of the S wave. Placebo-corrected change from baseline in QRS intervals (ΔΔQRS) was calculated using linear mixed-effects model analysis.

Time frame: Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-dose

Population: QT/QTc population included all participants who received 1 dose of study drug with measurements at baseline as well as on treatment with at least 1 post-dose time point with a valid ΔQTc value. As per planned analysis, data was planned to be reported only for Treatment A and C for this outcome measure.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
Treatment A: 900 mg PirtobrutinibPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 6 hours post-dose0.5 msec
Treatment A: 900 mg PirtobrutinibPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 0.25 hours post-dose0.0 msec
Treatment A: 900 mg PirtobrutinibPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 0.5 hours post-dose0.3 msec
Treatment A: 900 mg PirtobrutinibPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 0.75 hours post-dose0.2 msec
Treatment A: 900 mg PirtobrutinibPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 1 hours post-dose0.3 msec
Treatment A: 900 mg PirtobrutinibPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 1.5 hours post-dose0.0 msec
Treatment A: 900 mg PirtobrutinibPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 2 hours post-dose0.0 msec
Treatment A: 900 mg PirtobrutinibPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 2.5 hours post-dose0.0 msec
Treatment A: 900 mg PirtobrutinibPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 3 hours post-dose0.3 msec
Treatment A: 900 mg PirtobrutinibPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 4 hours post-dose0.1 msec
Treatment A: 900 mg PirtobrutinibPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 8.5 hours post-dose-0.8 msec
Treatment A: 900 mg PirtobrutinibPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 12 hours post-dose0.1 msec
Treatment A: 900 mg PirtobrutinibPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 24 hours post-dose1.2 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 12 hours post-dose0.0 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 2.5 hours post-dose0.1 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 0.25 hours post-dose-0.3 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 8.5 hours post-dose-0.4 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 0.5 hours post-dose0.1 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 3 hours post-dose-0.1 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 0.75 hours post-dose0.3 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 24 hours post-dose0.2 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 1 hours post-dose0.1 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 4 hours post-dose-0.3 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 1.5 hours post-dose0.1 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 6 hours post-dose-0.1 msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-Corrected Change From Baseline in QRS (ΔΔQRS)Change at 2 hours post-dose0.1 msec
Secondary

Placebo-corrected Change From Baseline in ΔQTcF (ΔΔQTcF), If a Substantial Heart Rate Effect Was Observed

The cardiodynamic assessment was performed through 12-lead ECG extracted from continuous recordings at pre-specified time points. Participants rested in supine position for at least 10 minutes prior to and 5 minutes after each time point for ECG extractions. The QT interval is the time from electrocardiogram Q wave to the end of the T wave corresponding to electrical systole. QT interval was corrected for heart rate using QTcF.

Time frame: Baseline (predose), 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8.5, 12 and 24 hours post-dose

Population: PK/QTc population included all participants who were in both the PK and QT/QTc populations with at least 1 pair of post-dose PK and ΔQTc data from the same time point in at least 1 period as well as participants in the QT/QTc population who received placebo. As per planned analysis, data was planned to be reported only for Treatment A and B for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)
Treatment A: 900 mg PirtobrutinibPlacebo-corrected Change From Baseline in ΔQTcF (ΔΔQTcF), If a Substantial Heart Rate Effect Was ObservedNA msec
Treatment B: 900 mg Pirtobrutinib Matched PlaceboPlacebo-corrected Change From Baseline in ΔQTcF (ΔΔQTcF), If a Substantial Heart Rate Effect Was ObservedNA msec

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026