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Trial · NCT03128411

Study of Bosutinib in Japanese Adult Patients With Newly Diagnosed Chronic Phase Chronic Myelogenous Leukemia

NCT03128411, Phase 2, Completed, Pfizer; results first posted 2020-11-24

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Study of Bosutinib in Japanese Adult Patients With Newly Diagnosed Chronic Phase Chronic Myelogenous Leukemia. Trials, record NCT03128411. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03128411

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Study of Bosutinib in Japanese Adult Patients With Newly Diagnosed Chronic Phase Chronic Myelogenous Leukemia
NCT number
NCT03128411
Status
Completed
Phases
Phase 2
Enrollment
64 participants, actual
Lead sponsor
Pfizer
Conditions
Leukemia, Chronic Myelogenous
Interventions
Bosutinib
First posted
2017-04-25
Last updated
2022-05-19
Results first posted
2020-11-24

Source ClinicalTrials.gov

Registered outcomes37

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryPercentage of Participants With Major Molecular Response (MMR) at Month 12Month 12
A MMR is defined as less than or equal to (\<=) 0.1 percent (%) BCR-ABL transcripts on the international scale (IS), corresponding to a \>=3-log reduction from standardized baseline with at least 3000 ABL assessed by the central laboratory. The MMR value counted only if the response was demonstrated at the 12-month visit; any MMR gained and lost, or never achieved at or before the 12-month visit was considered as non-responder.
SecondaryPercentage of Participants With Major Molecular Response (MMR) by Month 12Up to Month 12
A MMR is defined as less than or equal to (\<=) 0.1 percent (%) BCR-ABL transcripts on the international scale (IS), corresponding to a \>=3-log reduction from standardized baseline with at least 3000 ABL assessed by the central laboratory. The MMR value counted only if the response was demonstrated at or before the 12-month visit.
SecondaryPercentage of Participants With Major Molecular Response (MMR) by Month 18Up to Month 18
A MMR is defined as less than or equal to (\<=) 0.1 percent (%) BCR-ABL transcripts on the international scale (IS), corresponding to a \>=3-log reduction from standardized baseline with at least 3000 ABL assessed by the central laboratory. The MMR value counted only if the response was demonstrated at or before the 18-month visit.
SecondaryPercentage of Participants With Complete Cytogenetic Response (CCyR) by Month 12Up to Month 12
CCyR is based on the prevalence of Philadelphia chromosome positive metaphases among cells in metaphase on a bone marrow sample. CCyR was defined as absence of detectable Philadelphia chromosome positive cells. CCyR was achieved when there were "0" Philadelphia chromosome positive metaphases among at least 20 metaphases from a bone marrow sample or when MMR was achieved if no bone marrow analysis was performed. The CCyR value was counted only if the response was demonstrated at or before the 12-month visit.
SecondaryProbability of Maintaining Major Molecular Response (MMR) at Month 36At Month 36
Duration of MMR: time from first date of MMR until first date of confirmed loss of MMR, treatment discontinuation due to progressive disease (PD), or death due to PD within 28 days after last dose or censoring. PD: progression to Accelerated phase (AP) or to Blast Phase (BP). AP: 15-29% blasts in blood or marrow, or\>30% blasts plus promyelocytes in blood or marrow with blasts \<30%; ≥20% basophils in blood. BP: ≥30% Blasts in blood or bone marrow, extramedullary blast proliferation, other than in spleen. Kaplan-Meier analysis was used.
SecondaryProbability of Maintaining Complete Cytogenetic Response (CCyR) at Month 36At Month 36
Duration of CCyR, from first date of CCyR to confirmed loss of CCyR, treatment discontinuation due to PD, death due to PD within 28 days after last dose or censoring. Confirmed loss: at least 1 Ph+ metaphase confirmed by a second determination \>=4 weeks later or unconfirmed loss followed by treatment discontinuation due to suboptimal response. PD: progression to AP or to BP. Kaplan-Meier analysis was used.
SecondaryCumulative Incidence of Event Free Survival (EFS) at Month 36Up to Month 36
EFS: time from 1st dose until 1st occurrence of 1 of the following events or censoring: 1)death from any cause 2)transformation to AP or BP 3)loss of complete hematologic response (CHR) 4)loss of CCyR 5)participants not achieving CHR: doubling of WBCs \>= 1 month apart with 2nd value \>20\*10\^9/L and maintained in subsequent assessments for \>=2 weeks. Loss of CHR: appearance of any of the following confirmed by 2nd determination\>=4 weeks later (unless associated with CML-related treatment discontinuation): WBC count: \>20.0\*10\^9/L, platelet count: \>=600\*10\^9/L, appearance of palpable spleen/other extra medullary involvement, appearance of 5% myelocytes or blasts or promyelocytes in peripheral blood. Loss of CCyR:\>= one Ph+ metaphase confirmed by 2nd determination \>=4 weeks later(unless associated with CML-related treatment discontinuation). Cumulative incidence: % of participants with event at month 36 adjusted for competing risk of treatment discontinuation without event.
SecondaryProbability of Overall Survival (OS) at Month 36Up to Month 36Overall survival was defined as the time from first dose of study drug to death due to any cause or censoring. Kaplan-Meier analysis was used for determination of probability of overall survival.
SecondaryTrough Plasma Concentrations of BosutinibPre-dose on Day 1, Day 28, Day 56, Day 84
SecondarySummary and Analysis of Trough Bosutinib Plasma Concentration by Major Molecular Response (MMR) ResponsePre-dose on Day 28, Day 56 and Day 84
Trough bosutinib plasma concentration is reported classified on basis of participants with MMR response as "Yes" and "No" at specified time points. A MMR is defined as less than or equal to (\<=) 0.1 percent (%) BCR-ABL transcripts on the international scale (IS), corresponding to a \>=3-log reduction from standardized baseline with at least 3000 ABL assessed by the central laboratory.

Outcomes37

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercentage of Participants With Major Molecular Response (MMR) at Month 12Month 12
The modified as-treated population included all enrolled participants with Philadelphia chromosome positive CP CML harboring b2a2 and/or b3a2 transcripts who received at least 1 dose of study treatment.
Percentage of participantsNUMBER
SECONDARYPercentage of Participants With Major Molecular Response (MMR) by Month 12Up to Month 12
The modified as-treated population included all enrolled participants with Philadelphia chromosome positive CP CML harboring b2a2 and/or b3a2 transcripts who received at least 1 dose of study treatment.
Percentage of participantsNUMBER
SECONDARYPercentage of Participants With Major Molecular Response (MMR) by Month 18Up to Month 18
The modified as-treated population included all enrolled participants with Philadelphia chromosome positive CP CML harboring b2a2 and/or b3a2 transcripts who received at least 1 dose of study treatment.
Percentage of participantsNUMBER
SECONDARYPercentage of Participants With Complete Cytogenetic Response (CCyR) by Month 12Up to Month 12
The modified as-treated population included all enrolled participants with Philadelphia chromosome positive CP CML harboring b2a2 and/or b3a2 transcripts who received at least 1 dose of study treatment.
Percentage of participantsNUMBER
SECONDARYProbability of Maintaining Major Molecular Response (MMR) at Month 36At Month 36
The modified as-treated population included all enrolled participants with Philadelphia chromosome positive CP CML harboring b2a2 and/or b3a2 transcripts who received at least 1 dose of study treatment. Here, ''Overall Number of Participants Analyzed'' signifies number of participants evaluable for this outcome measure and who had MMR.
Percentage of participantsNUMBER
SECONDARYProbability of Maintaining Complete Cytogenetic Response (CCyR) at Month 36At Month 36
The modified as-treated population included all enrolled participants with Philadelphia chromosome positive CP CML harboring b2a2 and/or b3a2 transcripts who received at least 1 dose of study treatment. Here, ''Overall Number of Participants Analyzed'' signifies number of participants evaluable for this outcome measure and who had CCyR.
Percentage of participantsNUMBER
SECONDARYCumulative Incidence of Event Free Survival (EFS) at Month 36Up to Month 36
The modified as-treated population included all enrolled participants with Philadelphia chromosome positive CP CML harboring b2a2 and/or b3a2 transcripts who received at least 1 dose of study treatment.
Percentage of participantsNUMBER
SECONDARYProbability of Overall Survival (OS) at Month 36Up to Month 36
The modified as-treated population included all enrolled participants with Philadelphia chromosome positive CP CML harboring b2a2 and/or b3a2 transcripts who received at least 1 dose of study treatment.
Percentage of participantsNUMBER
SECONDARYTrough Plasma Concentrations of BosutinibPre-dose on Day 1, Day 28, Day 56, Day 84The PK population will be defined as any patient in the safety population of patients who had at least 1 concentration of bosutinib on-treatment.Nanogram per milliliter (ng/mL)MEAN
SECONDARYSummary and Analysis of Trough Bosutinib Plasma Concentration by Major Molecular Response (MMR) ResponsePre-dose on Day 28, Day 56 and Day 84
PK population included of all enrolled participants, who received at least 1 dose of study treatment and had at least 1 concentration of bosutinib on-treatment. For Day 28, 56, 84: total number of participants analyzed for each time point were sum of number analyzed against Yes and No categories respectively.
ng/mLMEAN

Results by group161

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Percentage of Participants With Major Molecular Response (MMR) at Month 12Bosutinib55.090% Confidence Interval 44.4 to 65.6Percentage of participants
Percentage of Participants With Major Molecular Response (MMR) by Month 12Bosutinib61.790% Confidence Interval 51.3 to 72.0Percentage of participants
Percentage of Participants With Major Molecular Response (MMR) by Month 18Bosutinib66.790% Confidence Interval 56.7 to 76.7Percentage of participants
Percentage of Participants With Complete Cytogenetic Response (CCyR) by Month 12Bosutinib80.090% Confidence Interval 71.5 to 88.5Percentage of participants
Probability of Maintaining Major Molecular Response (MMR) at Month 36Bosutinib100.090% Confidence Interval 100.0 to 100.0Percentage of participants
Probability of Maintaining Complete Cytogenetic Response (CCyR) at Month 36Bosutinib100.090% Confidence Interval 100.0 to 100.0Percentage of participants
Cumulative Incidence of Event Free Survival (EFS) at Month 36Bosutinib1.790% Confidence Interval 0.2 to 6.4Percentage of participants
Probability of Overall Survival (OS) at Month 36Bosutinib96.790% Confidence Interval 89.7 to 98.9Percentage of participants
Trough Plasma Concentrations of BosutinibBosutinibDay 10.000Standard Deviation 0.000Nanogram per milliliter (ng/mL)
Trough Plasma Concentrations of BosutinibBosutinibDay 2883.564Standard Deviation 64.1056Nanogram per milliliter (ng/mL)

Participant flow7

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Treatment PhaseSTARTEDBosutinib60
Treatment PhaseReceived TreatmentBosutinib60
Treatment PhaseCOMPLETEDBosutinib36
Treatment PhaseNOT COMPLETEDBosutinib24
Long Term Follow-up PhaseSTARTEDBosutinib24
Long Term Follow-up PhaseCOMPLETEDBosutinib22
Long Term Follow-up PhaseNOT COMPLETEDBosutinib2

Adverse events68

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAnaemiaBlood and lymphatic system disordersBosutinib1060
otherLymphopeniaBlood and lymphatic system disordersBosutinib460
otherThrombocytopeniaBlood and lymphatic system disordersBosutinib560
otherAbdominal pain upperGastrointestinal disordersBosutinib660
otherConstipationGastrointestinal disordersBosutinib860
otherDiarrhoeaGastrointestinal disordersBosutinib5260
otherNauseaGastrointestinal disordersBosutinib1760
otherVomitingGastrointestinal disordersBosutinib1660
otherPyrexiaGeneral disordersBosutinib1560
otherLiver disorderHepatobiliary disordersBosutinib760

Adverse event totals3

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityBosutinib260
Total, other adverse eventsBosutinib6060
Total, serious adverse eventsBosutinib1460

Papers4

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
32279228DERIVEDPubMed
35235189DERIVEDPubMed
35963986DERIVEDPubMed
37553873DERIVEDPubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

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The record and each of its lists are JSON, twenty rows a page. No key.

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GET https://conductscience.org/api/trials/v1/NCT03128411/registered?page=2