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Nilotinib in Newly Diagnosed Adult Philadelphia Chromosome & /or BCR-ABL Positive Chronic Myeloid Leukaemia in Chronic Phase

A Phase IIIb, Multicentre, Open-label Study of Nilotinib in Adult Patients With Newly Diagnosed Philadelphia Chromosome and/or BCR-ABL Positive CML in Chronic Phase

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01061177
Acronym
'MACS1252
Enrollment
1090
Registered
2010-02-02
Start date
2010-05-31
Completion date
2014-07-31
Last updated
2017-02-24

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

Conditions

CML in Chronic Phase

Keywords

Leukemia, myeloid, myelogenous, chronic BCR-ABL positive, Nilotinib, Philadelphia chromosome, CML in chronic phase

Brief summary

This study will assess the efficacy and safety of nilotinib in adult patients with newly diagnosed Philadelphia chromosome positive/BCR-ABL positive chronic myeloid leukaemia in chronic phase. The aim of the study is to confirm the rates of complete molecular remission (CMR) of nilotinib in newly diagnosed CML chronic phase patients in a pan-European population using the EUTOS standardized laboratories.

Interventions

DRUGNilotinib

Nilotinib was supplied by Novartis as 150 mg hard gelatin capsules in bottles. Nilotinib was dosed on a flat scale and not dosed by body weight. This form of supply was continued for all participants entered into the core study.

Sponsors

Novartis Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Patients with diagnosis of CP-CML with cytogenetic confirmation of Philadelphia (Ph) chromosome * Ph negative cases or patients with variant translocations who are BCR-ABL positive in multiplex PCR are also eligible * WHO performance status 0-2 * Laboratory assessments within normal limits * Written informed consent prior to any study procedures being performed

Exclusion criteria

* Known impaired cardiac function * History of acute or chronic pancreatitis * Impaired gastrointestinal function or disease that may alter the absorption of study drug * Concomitant medications with potential QT prolongation, or known to interact with CYP450 isoenzymes (CYP3A4, CYP2C9, and CYP2C8) * Patients who have undergone major surgery ≤ 2 weeks prior to starting study drug or who have not recovered from side effects of such therapy * Patients who are pregnant or breast feeding, or females of reproductive potential not employing an effective method of birth control. Female patients must agree to employ an effective barrier method of birth control throughout the study and for up to 3 months following discontinuation of study drug Other protocol-defined inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Molecular Response (MR4^0) at 18 Monthsat 18 monthsMR4\^0 was defined as either (i) detectable disease ≤ 0.01% BCR-ABL ratio (international scale (IS)) with mean ABL transcripts ≥ 10 000 or (ii) undetectable disease in complementary deoxyribonucleic acid (cDNA) with ≥ 10 000 ABL transcripts.

Secondary

MeasureTime frameDescription
Rate of Event Free Survival at 12 and 24 Monthsat 12 and 24 monthsEFS was defined as the time from the date of Day 1 (first treatment) + 1 day to the first occurrence of any of the following: Loss of complete hematologic response (CHR), Loss of CCyR, Death from any cause, Progression to the AP or BC of CML, Not achieving CHR up to 3 months (ie, 91 + 15 days), Not achieving CCyR up to 18 months (ie, 548 + 15 days), whichever is earlier.
Percentage of Participants With Major Molecular Response (MMR) at, as Well as by, 12 and 24 Months12 months, 24 monthsMMR was defined as BCR-ABL ratio (IS) ≤ 0.1% in a peripheral blood sample. BCR-ABL1 is an abnormal gene found in chronic myeloid leukemia (CML) and acute lymphoblastic leukemia (ALL). The chromosomal defect in the Philadelphia chromosome is a translocation, in which parts of two chromosomes, 9 and 22, swap places. The result is that a fusion gene is created by juxtapositioning the Abl1 gene on chromosome 9 to a part of the BCR (breakpoint cluster region) gene on chromosome 22. Depending upon the breakpoints on the BCR gene, there are several forms of fusion proteins.
Percentage of Participants With Complete Cytogenetic Response (CCyR) at, as Well as by, 12 and 24 Months12 and 24 monthsCCyR parameters were defined as 0% Philadelphia positive (Ph+) metaphases. Loss of CCyR was defined as a patient exceeding the CCyR criteria (ie, \> 0% Ph+ metaphases) at a subsequent visit after the patient had achieved CCyR.
Percentage of Participants With Major Cytogenetic Response (MCyR) at, as Well as by, 12 and 24 Months12 and 24 monthsMajor cytogenetic response (MCyR) parameters were defined as 0 to 35% Philadelphia positive (Ph+) metaphases.
Percentage of Participants Free From Progression to AP/BC With MR4^0 at 12 Monthsat 12 monthsThe following events were considered disease progression to AP/BC: Death due to disease under study; AP, as defined by any of the following: ≥ 15% blasts in the peripheral blood or bone marrow, but \< 30% blasts in both the peripheral blood and bone marrow, ≥ 30% blasts plus promyelocytes in peripheral blood or bone marrow, ≥ 20% basophils in the peripheral blood, Thrombocytopenia (\< 100 × 109/L) that was unrelated to therapy, Evidence of clonal evolution, as determined by medical review with consensus of the SSMC/DMC. BC was defined as: ≥ 30% blasts in peripheral blood or bone marrow, Appearance of extramedullary involvement other than hepatosplenomegaly proven by biopsy.
Percentage of Participants With Event Free Survival in Participants Achieving MR4^0 at 12 Monthsat 12 monthsEFS was defined as the time from the date of Day 1 (first treatment) + 1 day to the first occurrence of any of the following: Loss of complete hematologic response (CHR), Loss of CCyR, Death from any cause, Progression to the AP or BC of CML, Not achieving CHR up to 3 months (i.e. 91 + 15 days).
Percentage of Participants With Progression Free Survival (PFS) at 12 and 24 Months12 months, 24 monthsPFS was defined by the study protocol as the time from the date of start of study drug to the date of earliest progression to AP/BC, or the date of death from any cause.
Percentage of Participants Free From Progression to Accelerated Phase/Blast Crisis (AP/BC) at 12 and 24 Monthsat 12 and 24 monthsThe following events were considered disease progression to AP/BC: Death due to disease under study; AP, as defined by any of the following: ≥ 15% blasts in the peripheral blood or bone marrow, but \< 30% blasts in both the peripheral blood and bone marrow, ≥ 30% blasts plus promyelocytes in peripheral blood or bone marrow, ≥ 20% basophils in the peripheral blood, Thrombocytopenia (\< 100 × 109/L) that was unrelated to therapy, Evidence of clonal evolution, as determined by medical review with consensus of the SSMC/DMC. BC was defined as: ≥ 30% blasts in peripheral blood or bone marrow, Appearance of extramedullary involvement other than hepatosplenomegaly proven by biopsy.
Rate of Molecular Response (MR4^5) at, as Well as by, 12 and 24 Months12 and 24 monthsMR4\^5 was defined as either (i) detectable disease ≤ 0.0032% BCR-ABL ratio (IS) with mean ABL transcripts ≥ 32 000 or (ii) undetectable disease in cDNA with ≥ 32 000 ABL transcripts).
Rate of Complete Hematologic Response (CHR) at, as Well as by, 12 and 24 Months12 months, 24 monthsCHR was defined as all of the following present for ≥ 4 weeks in the peripheral blood: WBC count \< 10 x 109/L, Platelet count \< 450 x 109/L, No circulating peripheral blood blasts, promyelocytes, myelocytes, or metamyelocytes in the peripheral blood, The presence of \< 5% basophils, No evidence of disease-related symptoms and extramedullary disease, including spleen and liver. Loss of CHR was defined as the appearance of any of the following after having achieved a CHR confirmed by a second determination ≥ 4 weeks later (unless associated with progression to AP/BC or death, which was considered to be a confirmed loss of CHR event on its own): WBC count that increased to \> 20.0 x 109/L, Platelet count that increased to ≥ 600 x 109/L, Any palpable spleen, defined as size of spleen below costal margin \> 5 cm, Appearance of \> 5% myelocytes plus metamyelocytes, or any promyelocytes or blasts in the peripheral blood.
Percentage of Participants With Overall Survival at 12 and 24 Months12 months, 24 monthsOS was defined as the time between the date of Day 1 (first treatment) and the date of death from any cause. Deaths which occurred after the 24-month time window and which were occasionally reported by some Investigators were excluded from the analysis. This is in agreement with the protocol stating that patients were to be followed for survival and progression to AP/BC up to 24 months after the participants treatment start.
Rate of Molecular Response (MR4^0) by 18 Monthsby 18 monthsMR4\^0 was defined as either (i) detectable disease ≤ 0.01% BCR-ABL ratio (international scale (IS)) with mean ABL transcripts ≥ 10 000 or (ii) undetectable disease in complementary deoxyribonucleic acid (cDNA) with ≥ 10 000 ABL transcripts. BCR = Breakpoint Cluster Region gene/BCR gene product BCR-ABL is fusion gene formed from the ABL gene from chromosome 9 fusing with the BCR gene on chromosome 22, the gene product is BCR-ABL tyrosine kinase
Rate of Molecular Response (MR4^5) by 18 Monthsby 18 monthsMR4\^5 was defined as either (i) detectable disease ≤ 0.0032% BCR-ABL ratio (IS) with mean ABL transcripts ≥ 32 000 or (ii) undetectable disease in cDNA with ≥ 32 000 ABL transcripts). BCR = Breakpoint Cluster Region gene/BCR gene product BCR-ABL is fusion gene formed from the ABL gene from chromosome 9 fusing with the BCR gene on chromosome 22, the gene product is BCR-ABL tyrosine kinase
Percentage of Participants With Progression Free Survival in Participants Achieving MR4^0 at 12 Months12 monthsPFS was defined by the study protocol as the time from the date of start of study drug to the date of earliest progression to AP/BC, or the date of death from any cause.
Rate of Molecular Response (MR4^0) at, as Well as by, 12 and 24 Months12 and 24 monthsMR4\^0 was defined as either (i) detectable disease ≤ 0.01% BCR-ABL ratio (international scale (IS)) with mean ABL transcripts ≥ 10 000 or (ii) undetectable disease in complementary deoxyribonucleic acid (cDNA) with ≥ 10 000 ABL transcripts.

Countries

Austria, Belgium, Bulgaria, Croatia, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom

Participant flow

Pre-assignment details

ITT: intent to treat; b3a2 & b2a2 +ve are categories of BCR-ABL transcripts (BCR-ABL1 is an abnormal gene found in chronic myeloid leukemia and acute lymphoblastic leukemia patients; CyR (Ph+ Patients Only) = cytogenic response for Philadelphia positive patients only.

Participants by arm

ArmCount
Nilotinib
This was a single-arm study; therefore all participants received nilotinib (AMN107) 300 mg bid given as two 150 mg capsules twice daily.
1,089
Total1,089

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAbnormal laboratory values6
Overall StudyAbnormal test procedure results4
Overall StudyAdministratie problems4
Overall StudyAdverse Event117
Overall StudyDeath4
Overall StudyDisease progression17
Overall StudyLost to Follow-up9
Overall StudyNew cancer therapy9
Overall StudyProtocol Violation11
Overall StudyWithdrawal by Subject27

Baseline characteristics

CharacteristicNilotinib
Age, Continuous51.6 Years
STANDARD_DEVIATION 14.87
ECOG performance score
Completely disabled (4)
0 Participants
ECOG performance score
Limited self care (3)
0 Participants
ECOG performance score
Missing
2 Participants
ECOG performance score
No restrictions (0)
867 Participants
ECOG performance score
Only light work (1)
199 Participants
ECOG performance score
Only self care (2)
21 Participants
Gender
Female
447 Participants
Gender
Male
642 Participants
Race/Ethnicity, Customized
Black
6 Participants
Race/Ethnicity, Customized
Caucacian
1045 Participants
Race/Ethnicity, Customized
Native American
2 Participants
Race/Ethnicity, Customized
Oriental
5 Participants
Race/Ethnicity, Customized
Other
31 Participants
Weight at baseline77.47 Kg
STANDARD_DEVIATION 15.73

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
841 / 1,089
serious
Total, serious adverse events
207 / 1,089

Outcome results

Primary

Percentage of Participants With Molecular Response (MR4^0) at 18 Months

MR4\^0 was defined as either (i) detectable disease ≤ 0.01% BCR-ABL ratio (international scale (IS)) with mean ABL transcripts ≥ 10 000 or (ii) undetectable disease in complementary deoxyribonucleic acid (cDNA) with ≥ 10 000 ABL transcripts.

Time frame: at 18 months

Population: Intent-to-treat\_Molecular (ITT\_MR) analysis set was a subset of the ITT population including the patients with typical BCR-ABL transcript at screening.

ArmMeasureValue (NUMBER)
NilotinibPercentage of Participants With Molecular Response (MR4^0) at 18 Months38.3 Percentage of Participants
Secondary

Percentage of Participants Free From Progression to Accelerated Phase/Blast Crisis (AP/BC) at 12 and 24 Months

The following events were considered disease progression to AP/BC: Death due to disease under study; AP, as defined by any of the following: ≥ 15% blasts in the peripheral blood or bone marrow, but \< 30% blasts in both the peripheral blood and bone marrow, ≥ 30% blasts plus promyelocytes in peripheral blood or bone marrow, ≥ 20% basophils in the peripheral blood, Thrombocytopenia (\< 100 × 109/L) that was unrelated to therapy, Evidence of clonal evolution, as determined by medical review with consensus of the SSMC/DMC. BC was defined as: ≥ 30% blasts in peripheral blood or bone marrow, Appearance of extramedullary involvement other than hepatosplenomegaly proven by biopsy.

Time frame: at 12 and 24 months

Population: The intent-to-treat (ITT) population consisted of all patients who received at least one dose of study drug.

ArmMeasureGroupValue (NUMBER)
NilotinibPercentage of Participants Free From Progression to Accelerated Phase/Blast Crisis (AP/BC) at 12 and 24 MonthsPts free from progression to AP/BC at 12 months99.4 Percentage of participants
NilotinibPercentage of Participants Free From Progression to Accelerated Phase/Blast Crisis (AP/BC) at 12 and 24 MonthsPts free from progression to AP/BC at 24 months99.4 Percentage of participants
Secondary

Percentage of Participants Free From Progression to AP/BC With MR4^0 at 12 Months

The following events were considered disease progression to AP/BC: Death due to disease under study; AP, as defined by any of the following: ≥ 15% blasts in the peripheral blood or bone marrow, but \< 30% blasts in both the peripheral blood and bone marrow, ≥ 30% blasts plus promyelocytes in peripheral blood or bone marrow, ≥ 20% basophils in the peripheral blood, Thrombocytopenia (\< 100 × 109/L) that was unrelated to therapy, Evidence of clonal evolution, as determined by medical review with consensus of the SSMC/DMC. BC was defined as: ≥ 30% blasts in peripheral blood or bone marrow, Appearance of extramedullary involvement other than hepatosplenomegaly proven by biopsy.

Time frame: at 12 months

Population: The intent-to-treat (ITT) population consisted of all patients who received at least one dose of study drug.

ArmMeasureValue (NUMBER)
NilotinibPercentage of Participants Free From Progression to AP/BC With MR4^0 at 12 Months100.0 Percentage of participants
Secondary

Percentage of Participants With Complete Cytogenetic Response (CCyR) at, as Well as by, 12 and 24 Months

CCyR parameters were defined as 0% Philadelphia positive (Ph+) metaphases. Loss of CCyR was defined as a patient exceeding the CCyR criteria (ie, \> 0% Ph+ metaphases) at a subsequent visit after the patient had achieved CCyR.

Time frame: 12 and 24 months

Population: The ITT\_CyR population was a subset of the ITT population including the Ph+ patients at screening was considered. Patients who had either no metaphases recorded at screening bone marrow or only negative metaphases recorded at screening bone marrow but had Ph+ metaphases at any visits after screening were also part of this population.

ArmMeasureGroupValue (NUMBER)
NilotinibPercentage of Participants With Complete Cytogenetic Response (CCyR) at, as Well as by, 12 and 24 Monthsat 12 months72.4 Percentage of participants
NilotinibPercentage of Participants With Complete Cytogenetic Response (CCyR) at, as Well as by, 12 and 24 Monthsat 24 months65.6 Percentage of participants
NilotinibPercentage of Participants With Complete Cytogenetic Response (CCyR) at, as Well as by, 12 and 24 MonthsBy Month 1282.5 Percentage of participants
NilotinibPercentage of Participants With Complete Cytogenetic Response (CCyR) at, as Well as by, 12 and 24 MonthsBy Month 2489.0 Percentage of participants
Secondary

Percentage of Participants With Event Free Survival in Participants Achieving MR4^0 at 12 Months

EFS was defined as the time from the date of Day 1 (first treatment) + 1 day to the first occurrence of any of the following: Loss of complete hematologic response (CHR), Loss of CCyR, Death from any cause, Progression to the AP or BC of CML, Not achieving CHR up to 3 months (i.e. 91 + 15 days).

Time frame: at 12 months

Population: The intent-to-treat (ITT) population consisted of all patients who received at least one dose of study drug.

ArmMeasureValue (NUMBER)
NilotinibPercentage of Participants With Event Free Survival in Participants Achieving MR4^0 at 12 Months87.0 Percentage of participants
Secondary

Percentage of Participants With Major Cytogenetic Response (MCyR) at, as Well as by, 12 and 24 Months

Major cytogenetic response (MCyR) parameters were defined as 0 to 35% Philadelphia positive (Ph+) metaphases.

Time frame: 12 and 24 months

Population: The ITT\_CyR population was a subset of the ITT population including the Ph+ patients at screening was considered. Patients who had either no metaphases recorded at screening bone marrow or only negative metaphases recorded at screening bone marrow but had Ph+ metaphases at any visits after screening were also part of this population.

ArmMeasureGroupValue (NUMBER)
NilotinibPercentage of Participants With Major Cytogenetic Response (MCyR) at, as Well as by, 12 and 24 Monthsat 12 months73.8 Percentage of participants
NilotinibPercentage of Participants With Major Cytogenetic Response (MCyR) at, as Well as by, 12 and 24 Monthsat 24 months66.2 Percentage of participants
NilotinibPercentage of Participants With Major Cytogenetic Response (MCyR) at, as Well as by, 12 and 24 Monthsby 12 months86.7 Percentage of participants
NilotinibPercentage of Participants With Major Cytogenetic Response (MCyR) at, as Well as by, 12 and 24 Monthsby 24 months91.4 Percentage of participants
Secondary

Percentage of Participants With Major Molecular Response (MMR) at, as Well as by, 12 and 24 Months

MMR was defined as BCR-ABL ratio (IS) ≤ 0.1% in a peripheral blood sample. BCR-ABL1 is an abnormal gene found in chronic myeloid leukemia (CML) and acute lymphoblastic leukemia (ALL). The chromosomal defect in the Philadelphia chromosome is a translocation, in which parts of two chromosomes, 9 and 22, swap places. The result is that a fusion gene is created by juxtapositioning the Abl1 gene on chromosome 9 to a part of the BCR (breakpoint cluster region) gene on chromosome 22. Depending upon the breakpoints on the BCR gene, there are several forms of fusion proteins.

Time frame: 12 months, 24 months

Population: Intent-to-treat\_Molecular (ITT\_MR) analysis set was a subset of the ITT population including the patients with typical BCR-ABL transcript at screening.

ArmMeasureGroupValue (NUMBER)
NilotinibPercentage of Participants With Major Molecular Response (MMR) at, as Well as by, 12 and 24 Monthsat 12 months56.2 Percentage of participants
NilotinibPercentage of Participants With Major Molecular Response (MMR) at, as Well as by, 12 and 24 Monthsat 24 months61.1 Percentage of participants
NilotinibPercentage of Participants With Major Molecular Response (MMR) at, as Well as by, 12 and 24 Monthsby 12 months68.8 Percentage of participants
NilotinibPercentage of Participants With Major Molecular Response (MMR) at, as Well as by, 12 and 24 Monthsby 24 months80.3 Percentage of participants
Secondary

Percentage of Participants With Overall Survival at 12 and 24 Months

OS was defined as the time between the date of Day 1 (first treatment) and the date of death from any cause. Deaths which occurred after the 24-month time window and which were occasionally reported by some Investigators were excluded from the analysis. This is in agreement with the protocol stating that patients were to be followed for survival and progression to AP/BC up to 24 months after the participants treatment start.

Time frame: 12 months, 24 months

Population: The intent-to-treat (ITT) population consisted of all patients who received at least one dose of study drug.

ArmMeasureGroupValue (NUMBER)
NilotinibPercentage of Participants With Overall Survival at 12 and 24 Monthsat 12 months99.6 Percentage of participants
NilotinibPercentage of Participants With Overall Survival at 12 and 24 Monthsat 24 months98.9 Percentage of participants
Secondary

Percentage of Participants With Progression Free Survival in Participants Achieving MR4^0 at 12 Months

PFS was defined by the study protocol as the time from the date of start of study drug to the date of earliest progression to AP/BC, or the date of death from any cause.

Time frame: 12 months

Population: The intent-to-treat (ITT) population consisted of all patients who received at least one dose of study drug.

ArmMeasureGroupValue (NUMBER)
NilotinibPercentage of Participants With Progression Free Survival in Participants Achieving MR4^0 at 12 Monthsat 12 months99.2 Percentage of participants
NilotinibPercentage of Participants With Progression Free Survival in Participants Achieving MR4^0 at 12 Monthsat 24 months99.0 Percentage of participants
Secondary

Percentage of Participants With Progression Free Survival (PFS) at 12 and 24 Months

PFS was defined by the study protocol as the time from the date of start of study drug to the date of earliest progression to AP/BC, or the date of death from any cause.

Time frame: 12 months, 24 months

Population: The intent-to-treat (ITT) population consisted of all patients who received at least one dose of study drug.

ArmMeasureGroupValue (NUMBER)
NilotinibPercentage of Participants With Progression Free Survival (PFS) at 12 and 24 Monthsat 12 months99.2 Percentage of participants
NilotinibPercentage of Participants With Progression Free Survival (PFS) at 12 and 24 Monthsat 24 months99.0 Percentage of participants
Secondary

Rate of Complete Hematologic Response (CHR) at, as Well as by, 12 and 24 Months

CHR was defined as all of the following present for ≥ 4 weeks in the peripheral blood: WBC count \< 10 x 109/L, Platelet count \< 450 x 109/L, No circulating peripheral blood blasts, promyelocytes, myelocytes, or metamyelocytes in the peripheral blood, The presence of \< 5% basophils, No evidence of disease-related symptoms and extramedullary disease, including spleen and liver. Loss of CHR was defined as the appearance of any of the following after having achieved a CHR confirmed by a second determination ≥ 4 weeks later (unless associated with progression to AP/BC or death, which was considered to be a confirmed loss of CHR event on its own): WBC count that increased to \> 20.0 x 109/L, Platelet count that increased to ≥ 600 x 109/L, Any palpable spleen, defined as size of spleen below costal margin \> 5 cm, Appearance of \> 5% myelocytes plus metamyelocytes, or any promyelocytes or blasts in the peripheral blood.

Time frame: 12 months, 24 months

Population: The intent-to-treat (ITT) population consisted of all patients who received at least one dose of study drug.

ArmMeasureGroupValue (NUMBER)
NilotinibRate of Complete Hematologic Response (CHR) at, as Well as by, 12 and 24 Monthsby Month 2489.1 Percentage of prticipants
NilotinibRate of Complete Hematologic Response (CHR) at, as Well as by, 12 and 24 Monthsat 12 months82.7 Percentage of prticipants
NilotinibRate of Complete Hematologic Response (CHR) at, as Well as by, 12 and 24 Monthsat 24 months75.5 Percentage of prticipants
NilotinibRate of Complete Hematologic Response (CHR) at, as Well as by, 12 and 24 Monthsby Month1286.2 Percentage of prticipants
Secondary

Rate of Event Free Survival at 12 and 24 Months

EFS was defined as the time from the date of Day 1 (first treatment) + 1 day to the first occurrence of any of the following: Loss of complete hematologic response (CHR), Loss of CCyR, Death from any cause, Progression to the AP or BC of CML, Not achieving CHR up to 3 months (ie, 91 + 15 days), Not achieving CCyR up to 18 months (ie, 548 + 15 days), whichever is earlier.

Time frame: at 12 and 24 months

Population: The intent-to-treat (ITT) population consisted of all patients who received at least one dose of study drug.

ArmMeasureGroupValue (NUMBER)
NilotinibRate of Event Free Survival at 12 and 24 MonthsPercentage of participants with EFS at 12 months71.7 Percentage of participants
NilotinibRate of Event Free Survival at 12 and 24 MonthsPercentage of participants with EFS at 24 months69.1 Percentage of participants
Secondary

Rate of Molecular Response (MR4^0) at, as Well as by, 12 and 24 Months

MR4\^0 was defined as either (i) detectable disease ≤ 0.01% BCR-ABL ratio (international scale (IS)) with mean ABL transcripts ≥ 10 000 or (ii) undetectable disease in complementary deoxyribonucleic acid (cDNA) with ≥ 10 000 ABL transcripts.

Time frame: 12 and 24 months

Population: The ITT\_MR population was a subset of the ITT population including the patients with typical BCR-ABL transcript at screening ie, b3a2 and/or b2a2 were considered. This population was referred to as ITT\_MR.

ArmMeasureGroupValue (NUMBER)
NilotinibRate of Molecular Response (MR4^0) at, as Well as by, 12 and 24 Monthsby month 1236.9 Percentage of participants
NilotinibRate of Molecular Response (MR4^0) at, as Well as by, 12 and 24 Monthsby month 2455.0 Percentage of participants
NilotinibRate of Molecular Response (MR4^0) at, as Well as by, 12 and 24 Monthsat 12 months30.7 Percentage of participants
NilotinibRate of Molecular Response (MR4^0) at, as Well as by, 12 and 24 Monthsat 24 months40.2 Percentage of participants
Secondary

Rate of Molecular Response (MR4^0) by 18 Months

MR4\^0 was defined as either (i) detectable disease ≤ 0.01% BCR-ABL ratio (international scale (IS)) with mean ABL transcripts ≥ 10 000 or (ii) undetectable disease in complementary deoxyribonucleic acid (cDNA) with ≥ 10 000 ABL transcripts. BCR = Breakpoint Cluster Region gene/BCR gene product BCR-ABL is fusion gene formed from the ABL gene from chromosome 9 fusing with the BCR gene on chromosome 22, the gene product is BCR-ABL tyrosine kinase

Time frame: by 18 months

Population: The ITT\_MR population was a subset of the ITT population including the patients with typical BCR-ABL transcript at screening ie, b3a2 and/or b2a2 were considered. This population was referred to as ITT\_MR.

ArmMeasureValue (NUMBER)
NilotinibRate of Molecular Response (MR4^0) by 18 Months48.5 Percentage of participants
Secondary

Rate of Molecular Response (MR4^5) at, as Well as by, 12 and 24 Months

MR4\^5 was defined as either (i) detectable disease ≤ 0.0032% BCR-ABL ratio (IS) with mean ABL transcripts ≥ 32 000 or (ii) undetectable disease in cDNA with ≥ 32 000 ABL transcripts).

Time frame: 12 and 24 months

Population: The ITT\_MR population was a subset of the ITT population including the patients with typical BCR-ABL transcript at screening ie, b3a2 and/or b2a2 were considered.

ArmMeasureGroupValue (NUMBER)
NilotinibRate of Molecular Response (MR4^5) at, as Well as by, 12 and 24 Monthsat 12 months15.2 Percentage of participants
NilotinibRate of Molecular Response (MR4^5) at, as Well as by, 12 and 24 Monthsat 24 months21.9 Percentage of participants
NilotinibRate of Molecular Response (MR4^5) at, as Well as by, 12 and 24 Monthsby 12 months20.6 Percentage of participants
NilotinibRate of Molecular Response (MR4^5) at, as Well as by, 12 and 24 Monthsby 24 months38.4 Percentage of participants
Secondary

Rate of Molecular Response (MR4^5) by 18 Months

MR4\^5 was defined as either (i) detectable disease ≤ 0.0032% BCR-ABL ratio (IS) with mean ABL transcripts ≥ 32 000 or (ii) undetectable disease in cDNA with ≥ 32 000 ABL transcripts). BCR = Breakpoint Cluster Region gene/BCR gene product BCR-ABL is fusion gene formed from the ABL gene from chromosome 9 fusing with the BCR gene on chromosome 22, the gene product is BCR-ABL tyrosine kinase

Time frame: by 18 months

Population: The ITT\_MR population was a subset of the ITT population including the patients with typical BCR-ABL transcript at screening ie, b3a2 and/or b2a2 were considered.

ArmMeasureValue (NUMBER)
NilotinibRate of Molecular Response (MR4^5) by 18 Months31.6 Percentage of participants

Source: ClinicalTrials.gov · Data processed: Mar 13, 2026