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Evaluation of the Relative Bioavailability of Bosutinib Capsules Under Fed Condition and Estimation of Food Effect on Orally Administered Bosutinib Capsule

A PHASE 1, RANDOMIZED, OPEN-LABEL, 3-PERIOD, 4-SEQUENCE, CROSSOVER, SINGLE-DOSE STUDY TO COMPARE THE BIOAVAILABILITY OF ORALLY ADMINISTERED BOSUTINIB CAPSULES AND TO ESTIMATE THE EFFECT OF FOOD ON BOSUTINIB CAPSULE

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05032690
Enrollment
32
Registered
2021-09-02
Start date
2022-01-19
Completion date
2022-06-25
Last updated
2024-09-20

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

Conditions

Healthy Participants

Keywords

Bioavailability, Food Effect, Bosutinib, Maximum Observed Plasma Concentration (Cmax), Area Under the Curve (AUC)

Brief summary

This study is intended to estimate the bioavailability of a single 100 mg bosutinib capsules relative to four 25 mg capsules under fed condition in adult healthy participants and to estimate the effect of a high-fat, high-calorie meal on the bioavailability of a single 100 mg capsule of bosutinib relative to fasted condition in adults healthy participants. The comparisons will be performed using the pharmacokinetic parameters that define the rate and extend of absorption (Cmax, AUC). Statistical analyses will be performed after the administration of a single 100 mg dose under fed condition as the Reference treatment and the four 25 mg capsules as the Test treatment for the first comparison, and after administration of a single 100 mg dose under fasted condition as the Reference treatment and the 100 mg capsule under fed condition as the Test treatment for the second comparison.

Interventions

Bosutinib four 25 mg capsule taken after a high-fat and high calorie breakfast

DRUGBosutinib

Bosutinib 100 mg capsule taken after an overnight fast of at least 10 hours

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
NONE

Intervention model description

A Phase 1, open-label, randomized, single dose, 3-period, 4 sequence, crossover study in healthy participants

Eligibility

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

Inclusion criteria

* Female participants of non-childbearing potential and/or male participants must be 18 to 55 years of age, inclusive, at the time of signing the informed consent document (ICD) * participants who are overtly healthy as determined by medical evaluation including a detailed medical history, complete physical examination, vital signs which include BP and pulse rate measurement, clinical laboratory tests, and electrocardiogram (ECG). * Participants who are willing and able to comply with all scheduled visits, treatment plan, laboratory tests, lifestyle considerations, and other study procedures

Exclusion criteria

* Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurological, dermatological, or allergic disease. * Any condition possibly affecting drug absorption (eg, gastrectomy, cholecystectomy). * History of human immunodeficiency virus (HIV) infection, hepatitis B, or hepatitis C; positive testing for HIV, HBsAg,hepatitis B surface antigen (HBcAb) or hepatitis C antibody (HCVAb). * Participants with ANY of the following abnormalities in clinical laboratory tests at screening, as assessed by the study-specific laboratory and confirmed by a single repeat test, if deemed necessary: * estimated glomerular filtration rate (eGFR) (Chronic Kidney Disease Epidemiology Collaboration \[CKD-EPI\]) \<90 mL/min/1.73 m2; * aspartate aminotransferase (AST) or alanine aminotransferase (ALT) level \>upper limit of normal (ULN); * Serum (total and direct) bilirubin level \> ULN; participants with a history of Gilbert's syndrome may have direct bilirubin measured and would be eligible for this study provided the direct bilirubin level is \<= ULN; * Amylase and lipase level \> ULN.

Design outcomes

Primary

MeasureTime frameDescription
Area Under the Concentration-time Curve From Time 0 to Infinity (AUCinf) for BosutinibPredose (0 hour) and at 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 60, 72, 96, and 144 hours post bosutinib doseAUCinf was calculated as \[AUClast+(Clast\*/kel)\], where AUClast is the area under the plasma concentration-time profile from time 0 to the time of the Clast, Clast is the last quantifiable concentration, Clast\* is the predicted plasma concentration at the last quantifiable time point estimated from the log-linear regression analysis, and kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration-time curve. The geometric coefficient of variation was reported as percentage
Maximum Observed Plasma Concentration (Cmax) for BosutinibPredose (0 hour) and at 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 60, 72, 96, and 144 hours post bosutinib doseCmax was the maximum observed plasma concentration. The geometric coefficient of variation was reported as percentage.

Secondary

MeasureTime frameDescription
Apparent Clearance After Oral Dose (CL/F) of BosutinibPredose (0 hour) and at 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 60, 72, 96, and 144 hours post bosutinib doseCL/F was the apparent clearance after oral dose and was determined as dose/AUCinf. The geometric coefficient of variation was reported as percentage.
Apparent Volume of Distribution After Oral Dose (Vz/F) of BosutinibPredose (0 hour) and at 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 60, 72, 96, and 144 hours post bosutinib doseVz/F was the apparent volume of distribution after oral dose. It was determined as dose/(AUCinf × kel), where kel was the terminal elimination phase rate constant calculated by a linear regression of the log-linear concentration time curve. The geometric coefficient of variation was reported as percentage.
Area Under the Concentration-time Curve From Time 0 to the Time of the Last Quantifiable Concentration (AUClast) for BosutinibPredose (0 hour) and at 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 60, 72, 96, and 144 hours post bosutinib doseAUClast was the area under the concentration-time curve from time 0 to the time of the last quantifiable concentration.
Number of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)On Days 4, 5, 7 of Periods 1 and 2 for all participants, on Period 3 Days 4, 5, 7 for participants who were assigned to treatment sequences A=>B=>C and B=>A=>C, and at early termination/discontinuation (if applicable)Laboratory tests included hematology tests, chemistry tests, and urinalysis tests. Laboratory parameters with at least 1 occurrence meeting the pre-defined criteria are reported for this outcome measure.
Number of Participants With Treatment-Emergent Adverse Events (TEAEs)Post first dose on Period 1 Day 1 up to 28 days post the last dose of study intervention (up to a maximum of 75 days)TEAEs are those with initial onset or that worsen in severity after the first dose of the study medication. All AEs in the table below were TEAEs. An SAE is any untoward medical occurrence at any dose that: results in death; is life threatening (immediate risk of death); requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity (substantial disruption of the ability to conduct normal life functions); results in congenital anomaly/birth defect; or that is considered to be an important medical event. Severe AEs were defined as AEs that interfered significantly with participant's usual function. Both SAEs and severe AEs were according to the investigator's assessment.
Terminal Elimination Half-Life (t1/2) of BosutinibPredose (0 hour) and at 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 60, 72, 96, and 144 hours post bosutinib doset½ was the terminal elimination plasma half-life. It was determined as Loge(2)/kel, where kel was the terminal elimination phase rate constant calculated by a linear regression of the log-linear concentration-time curve.
Time for Cmax (Tmax) of BosutinibPredose (0 hour) and at 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 60, 72, 96, and 144 hours post bosutinib doseTmax was the time to reach maximum observed plasma concentration and was observed directly from data as time of the first occurrence.

Countries

Belgium

Participant flow

Pre-assignment details

A total of 32 participants were assigned to the study intervention, of whom 26 participants received all the randomized treatment by sequence and 25 participants completed the study.

Participants by arm

ArmCount
Treatment A -> Treatment B -> Treatment C
Treatment A: 1 × 100 mg bosutinib capsule under fed condition. Treatment B: 4 × 25 mg bosutinib capsules under fed condition. Treatment C: 1 × 100 mg bosutinib capsule under fasted condition. The participant took Treatment A in Period 1, followed with at least 14-days washout between successive bosutinib doses, and then Treatment B in Period 2, followed with another at least 14-days washout between successive bosutinib doses, and then Treatment C in Period 3.
8
Treatment B -> Treatment A -> Treatment C
Treatment A: 1 × 100 mg bosutinib capsule under fed condition. Treatment B: 4 × 25 mg bosutinib capsules under fed condition. Treatment C: 1 × 100 mg bosutinib capsule under fasted condition. The participant took Treatment B in Period 1, followed with at least 14-days washout between successive bosutinib doses, and then Treatment A in Period 2, followed with another at least 14-days washout between successive bosutinib doses, and then Treatment C in Period 3.
10
Treatment A ->Treatment B
Treatment A: 1 × 100 mg bosutinib capsule under fed condition. Treatment B: 4 × 25 mg bosutinib capsules under fed condition.The participant took Treatment A in Period 1, followed with at least 14-days washout between successive bosutinib doses, and then Treatment B in Period 2.
7
Treatment B->Treatment A
Treatment A: 1 × 100 mg bosutinib capsule under fed condition. Treatment B: 4 × 25 mg bosutinib capsules under fed condition. The participant took Treatment B in Period 1, followed with at least 14-days washout between successive bosutinib doses, and then Treatment A in Period 2.
7
Total32

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Period 1Adverse Event0100
Period 1No longer meets eligibility criteria0100
Period 1Withdrawal by Subject1000
Period 2Adverse Event1000
Period 2No longer meets eligibility criteria0100
Period 2Withdrawal by Subject0100
Period 3Adverse Event0100

Baseline characteristics

CharacteristicTreatment A -> Treatment B -> Treatment CTreatment B -> Treatment A -> Treatment CTreatment A ->Treatment BTreatment B->Treatment ATotal
Age, Continuous35.5 years38.0 years42.0 years42.0 years39.5 years
Race/Ethnicity, Customized
Hispanic or Latino
0 Participants0 Participants1 Participants1 Participants2 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
8 Participants10 Participants6 Participants6 Participants30 Participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants0 Participants0 Participants
Sex: Female, Male
Male
8 Participants10 Participants7 Participants7 Participants32 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 300 / 310 / 12
other
Total, other adverse events
13 / 3020 / 315 / 12
serious
Total, serious adverse events
0 / 300 / 310 / 12

Outcome results

Primary

Area Under the Concentration-time Curve From Time 0 to Infinity (AUCinf) for Bosutinib

AUCinf was calculated as \[AUClast+(Clast\*/kel)\], where AUClast is the area under the plasma concentration-time profile from time 0 to the time of the Clast, Clast is the last quantifiable concentration, Clast\* is the predicted plasma concentration at the last quantifiable time point estimated from the log-linear regression analysis, and kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration-time curve. The geometric coefficient of variation was reported as percentage

Time frame: Predose (0 hour) and at 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 60, 72, 96, and 144 hours post bosutinib dose

Population: The pharmacokinetic (PK) parameter analysis population is defined as all subjects randomized and treated who have at least 1 of the PK parameters of primary interest in at least 1 treatment period.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment A: Bosutinib 1*100 mg Capsule FedArea Under the Concentration-time Curve From Time 0 to Infinity (AUCinf) for Bosutinib591.3 nanogram*hour per milliliter (ng*hr/mL)Geometric Coefficient of Variation 32
Treatment B: Bosutinib 4*25 mg Capsule FedArea Under the Concentration-time Curve From Time 0 to Infinity (AUCinf) for Bosutinib591.7 nanogram*hour per milliliter (ng*hr/mL)Geometric Coefficient of Variation 39
Treatment C: Bosutinib 1*100 mg Capsule FastedArea Under the Concentration-time Curve From Time 0 to Infinity (AUCinf) for Bosutinib479.4 nanogram*hour per milliliter (ng*hr/mL)Geometric Coefficient of Variation 30
Comparison: For comparison of Bosutinib 4\*25 mg Capsule Fed vs. Bosutinib 1\*100 mg Capsule Fed, the model is a mixed effect model with sequence, period and treatment as fixed effects and participant within sequence as a random effect.~The reference treatment of Bosutinib 4\*25 mg Capsule Fed is Bosutinib 1\*100 mg Capsule Fed.90% CI: [93.72, 104.93]Mixed Models Analysis
Comparison: For comparison of Bosutinib 1\*100 mg Capsule Fed vs. Bosutinib 1\*100 mg Capsule Fasted, the model is a mixed effect model with sequence and treatment as fixed effects and participant within sequence as a random effect.~The reference treatment of Bosutinib 1\*100 mg Capsule Fed is Bosutinib 1\*100 mg Capsule Fasted.90% CI: [109.28, 169.01]Mixed Models Analysis
Primary

Maximum Observed Plasma Concentration (Cmax) for Bosutinib

Cmax was the maximum observed plasma concentration. The geometric coefficient of variation was reported as percentage.

Time frame: Predose (0 hour) and at 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 60, 72, 96, and 144 hours post bosutinib dose

Population: The PK parameter analysis population is defined as all subjects randomized and treated who have at least 1 of the PK parameters of primary interest in at least 1 treatment period.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment A: Bosutinib 1*100 mg Capsule FedMaximum Observed Plasma Concentration (Cmax) for Bosutinib17.80 nanogram per milliliter (ng/mL)Geometric Coefficient of Variation 40
Treatment B: Bosutinib 4*25 mg Capsule FedMaximum Observed Plasma Concentration (Cmax) for Bosutinib16.68 nanogram per milliliter (ng/mL)Geometric Coefficient of Variation 38
Treatment C: Bosutinib 1*100 mg Capsule FastedMaximum Observed Plasma Concentration (Cmax) for Bosutinib10.75 nanogram per milliliter (ng/mL)Geometric Coefficient of Variation 58
Comparison: For comparison of Bosutinib 4\*25 mg Capsule Fed vs. Bosutinib 1\*100 mg Capsule Fed, the model is a mixed effect model with sequence, period and treatment as fixed effects and participant within sequence as a random effect.~The reference treatment of Bosutinib 4\*25 mg Capsule Fed is Bosutinib 1\*100 mg Capsule Fed.90% CI: [90.08, 97.61]Mixed Models Analysis
Comparison: For comparison of Bosutinib 1\*100 mg Capsule Fed vs. Bosutinib 1\*100 mg Capsule Fasted, the model is a mixed effect model with sequence and treatment as fixed effects and participant within sequence as a random effect.~The reference treatment of Bosutinib 1\*100 mg Capsule Fed is Bosutinib 1\*100 mg Capsule Fasted90% CI: [130.25, 202.84]Mixed Models Analysis
Secondary

Apparent Clearance After Oral Dose (CL/F) of Bosutinib

CL/F was the apparent clearance after oral dose and was determined as dose/AUCinf. The geometric coefficient of variation was reported as percentage.

Time frame: Predose (0 hour) and at 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 60, 72, 96, and 144 hours post bosutinib dose

Population: The PK parameter analysis population is defined as all subjects randomized and treated who have at least 1 of the PK parameters of primary interest in at least 1 treatment period.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment A: Bosutinib 1*100 mg Capsule FedApparent Clearance After Oral Dose (CL/F) of Bosutinib169.3 liter/hourGeometric Coefficient of Variation 32
Treatment B: Bosutinib 4*25 mg Capsule FedApparent Clearance After Oral Dose (CL/F) of Bosutinib169.0 liter/hourGeometric Coefficient of Variation 39
Treatment C: Bosutinib 1*100 mg Capsule FastedApparent Clearance After Oral Dose (CL/F) of Bosutinib208.5 liter/hourGeometric Coefficient of Variation 30
Secondary

Apparent Volume of Distribution After Oral Dose (Vz/F) of Bosutinib

Vz/F was the apparent volume of distribution after oral dose. It was determined as dose/(AUCinf × kel), where kel was the terminal elimination phase rate constant calculated by a linear regression of the log-linear concentration time curve. The geometric coefficient of variation was reported as percentage.

Time frame: Predose (0 hour) and at 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 60, 72, 96, and 144 hours post bosutinib dose

Population: The PK parameter analysis population is defined as all subjects randomized and treated who have at least 1 of the PK parameters of primary interest in at least 1 treatment period.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment A: Bosutinib 1*100 mg Capsule FedApparent Volume of Distribution After Oral Dose (Vz/F) of Bosutinib11130 literGeometric Coefficient of Variation 25
Treatment B: Bosutinib 4*25 mg Capsule FedApparent Volume of Distribution After Oral Dose (Vz/F) of Bosutinib10650 literGeometric Coefficient of Variation 24
Treatment C: Bosutinib 1*100 mg Capsule FastedApparent Volume of Distribution After Oral Dose (Vz/F) of Bosutinib12870 literGeometric Coefficient of Variation 19
Secondary

Area Under the Concentration-time Curve From Time 0 to the Time of the Last Quantifiable Concentration (AUClast) for Bosutinib

AUClast was the area under the concentration-time curve from time 0 to the time of the last quantifiable concentration.

Time frame: Predose (0 hour) and at 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 60, 72, 96, and 144 hours post bosutinib dose

Population: The PK parameter analysis population is defined as all subjects randomized and treated who have at least 1 of the PK parameters of primary interest in at least 1 treatment period.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Treatment A: Bosutinib 1*100 mg Capsule FedArea Under the Concentration-time Curve From Time 0 to the Time of the Last Quantifiable Concentration (AUClast) for Bosutinib455.6 nanogram*hour per milliliter (ng*hr/mL)Geometric Coefficient of Variation 40
Treatment B: Bosutinib 4*25 mg Capsule FedArea Under the Concentration-time Curve From Time 0 to the Time of the Last Quantifiable Concentration (AUClast) for Bosutinib446.4 nanogram*hour per milliliter (ng*hr/mL)Geometric Coefficient of Variation 45
Treatment C: Bosutinib 1*100 mg Capsule FastedArea Under the Concentration-time Curve From Time 0 to the Time of the Last Quantifiable Concentration (AUClast) for Bosutinib301.6 nanogram*hour per milliliter (ng*hr/mL)Geometric Coefficient of Variation 52
Comparison: For comparison of Bosutinib 4\*25 mg Capsule Fed vs. Bosutinib 1\*100 mg Capsule Fed, the model is a mixed effect model with sequence, period and treatment as fixed effects and participant within sequence as a random effect.~The reference treatment of Bosutinib 4\*25 mg Capsule Fed is Bosutinib 1\*100 mg Capsule Fed.90% CI: [93.83, 102.8]Mixed Models Analysis
Comparison: For comparison of Bosutinib 1\*100 mg Capsule Fed vs. Bosutinib 1\*100 mg Capsule Fasted, the model is a mixed effect model with sequence and treatment as fixed effects and participant within sequence as a random effect.~The reference treatment of Bosutinib 1\*100 mg Capsule Fed is Bosutinib 1\*100 mg Capsule Fasted.90% CI: [117.88, 182.58]Mixed Models Analysis
Secondary

Number of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)

Laboratory tests included hematology tests, chemistry tests, and urinalysis tests. Laboratory parameters with at least 1 occurrence meeting the pre-defined criteria are reported for this outcome measure.

Time frame: On Days 4, 5, 7 of Periods 1 and 2 for all participants, on Period 3 Days 4, 5, 7 for participants who were assigned to treatment sequences A=>B=>C and B=>A=>C, and at early termination/discontinuation (if applicable)

Population: All participants randomly assigned to study intervention and who take at least 1 dose of study intervention.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Treatment A: Bosutinib 1*100 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Urobilinogen (EU/dL) ≥11 Participants
Treatment A: Bosutinib 1*100 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)URINE Bilirubin ≥10 Participants
Treatment A: Bosutinib 1*100 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Specific Gravity (scalar) <1.0030 Participants
Treatment A: Bosutinib 1*100 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Coronavirus 19 Molecular (Scalar) >01 Participants
Treatment A: Bosutinib 1*100 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Monocytes/Leukocytes (%) >1.2*upper normal limit (ULN)7 Participants
Treatment A: Bosutinib 1*100 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)URINE Hemoglobin ≥14 Participants
Treatment A: Bosutinib 1*100 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Creatine Kinase (U/L) >2.0* ULN1 Participants
Treatment A: Bosutinib 1*100 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Aspartate Aminotransferase (U/L) > 3.0*ULN1 Participants
Treatment A: Bosutinib 1*100 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Specific Gravity (scalar) >1.0301 Participants
Treatment B: Bosutinib 4*25 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Coronavirus 19 Molecular (Scalar) >02 Participants
Treatment B: Bosutinib 4*25 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Monocytes/Leukocytes (%) >1.2*upper normal limit (ULN)8 Participants
Treatment B: Bosutinib 4*25 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Aspartate Aminotransferase (U/L) > 3.0*ULN0 Participants
Treatment B: Bosutinib 4*25 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Creatine Kinase (U/L) >2.0* ULN0 Participants
Treatment B: Bosutinib 4*25 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Urobilinogen (EU/dL) ≥11 Participants
Treatment B: Bosutinib 4*25 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Specific Gravity (scalar) <1.0032 Participants
Treatment B: Bosutinib 4*25 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Specific Gravity (scalar) >1.0300 Participants
Treatment B: Bosutinib 4*25 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)URINE Hemoglobin ≥14 Participants
Treatment B: Bosutinib 4*25 mg Capsule FedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)URINE Bilirubin ≥11 Participants
Treatment C: Bosutinib 1*100 mg Capsule FastedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Creatine Kinase (U/L) >2.0* ULN0 Participants
Treatment C: Bosutinib 1*100 mg Capsule FastedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Monocytes/Leukocytes (%) >1.2*upper normal limit (ULN)3 Participants
Treatment C: Bosutinib 1*100 mg Capsule FastedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Specific Gravity (scalar) >1.0300 Participants
Treatment C: Bosutinib 1*100 mg Capsule FastedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Aspartate Aminotransferase (U/L) > 3.0*ULN0 Participants
Treatment C: Bosutinib 1*100 mg Capsule FastedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)URINE Bilirubin ≥10 Participants
Treatment C: Bosutinib 1*100 mg Capsule FastedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Coronavirus 19 Molecular (Scalar) >01 Participants
Treatment C: Bosutinib 1*100 mg Capsule FastedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Urobilinogen (EU/dL) ≥10 Participants
Treatment C: Bosutinib 1*100 mg Capsule FastedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)URINE Hemoglobin ≥10 Participants
Treatment C: Bosutinib 1*100 mg Capsule FastedNumber of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)Specific Gravity (scalar) <1.0030 Participants
Secondary

Number of Participants With Treatment-Emergent Adverse Events (TEAEs)

TEAEs are those with initial onset or that worsen in severity after the first dose of the study medication. All AEs in the table below were TEAEs. An SAE is any untoward medical occurrence at any dose that: results in death; is life threatening (immediate risk of death); requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity (substantial disruption of the ability to conduct normal life functions); results in congenital anomaly/birth defect; or that is considered to be an important medical event. Severe AEs were defined as AEs that interfered significantly with participant's usual function. Both SAEs and severe AEs were according to the investigator's assessment.

Time frame: Post first dose on Period 1 Day 1 up to 28 days post the last dose of study intervention (up to a maximum of 75 days)

Population: All participants randomly assigned to study intervention and who took at least 1 dose of study intervention.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Treatment A: Bosutinib 1*100 mg Capsule FedNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Particiapnts with severe AEs0 Participants
Treatment A: Bosutinib 1*100 mg Capsule FedNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Participants discontinued from study due to adverse events0 Participants
Treatment A: Bosutinib 1*100 mg Capsule FedNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Particiapnts with SAEs0 Participants
Treatment A: Bosutinib 1*100 mg Capsule FedNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Particiapnts with TEAEs13 Participants
Treatment B: Bosutinib 4*25 mg Capsule FedNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Participants discontinued from study due to adverse events2 Participants
Treatment B: Bosutinib 4*25 mg Capsule FedNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Particiapnts with severe AEs0 Participants
Treatment B: Bosutinib 4*25 mg Capsule FedNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Particiapnts with SAEs0 Participants
Treatment B: Bosutinib 4*25 mg Capsule FedNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Particiapnts with TEAEs20 Participants
Treatment C: Bosutinib 1*100 mg Capsule FastedNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Participants discontinued from study due to adverse events1 Participants
Treatment C: Bosutinib 1*100 mg Capsule FastedNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Particiapnts with TEAEs5 Participants
Treatment C: Bosutinib 1*100 mg Capsule FastedNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Particiapnts with SAEs0 Participants
Treatment C: Bosutinib 1*100 mg Capsule FastedNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Particiapnts with severe AEs0 Participants
Secondary

Terminal Elimination Half-Life (t1/2) of Bosutinib

t½ was the terminal elimination plasma half-life. It was determined as Loge(2)/kel, where kel was the terminal elimination phase rate constant calculated by a linear regression of the log-linear concentration-time curve.

Time frame: Predose (0 hour) and at 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 60, 72, 96, and 144 hours post bosutinib dose

Population: The PK parameter analysis population is defined as all subjects randomized and treated who have at least 1 of the PK parameters of primary interest in at least 1 treatment period.

ArmMeasureValue (MEAN)Dispersion
Treatment A: Bosutinib 1*100 mg Capsule FedTerminal Elimination Half-Life (t1/2) of Bosutinib47.22 hourStandard Deviation 11.753
Treatment B: Bosutinib 4*25 mg Capsule FedTerminal Elimination Half-Life (t1/2) of Bosutinib46.01 hourStandard Deviation 13.434
Treatment C: Bosutinib 1*100 mg Capsule FastedTerminal Elimination Half-Life (t1/2) of Bosutinib43.28 hourStandard Deviation 7.6939
Secondary

Time for Cmax (Tmax) of Bosutinib

Tmax was the time to reach maximum observed plasma concentration and was observed directly from data as time of the first occurrence.

Time frame: Predose (0 hour) and at 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 60, 72, 96, and 144 hours post bosutinib dose

Population: The PK parameter analysis population is defined as all subjects randomized and treated who have at least 1 of the PK parameters of primary interest in at least 1 treatment period.

ArmMeasureValue (MEDIAN)
Treatment A: Bosutinib 1*100 mg Capsule FedTime for Cmax (Tmax) of Bosutinib6.00 hour
Treatment B: Bosutinib 4*25 mg Capsule FedTime for Cmax (Tmax) of Bosutinib6.00 hour
Treatment C: Bosutinib 1*100 mg Capsule FastedTime for Cmax (Tmax) of Bosutinib6.00 hour

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026