Nilotinib

Centralised assessment of the BCR-ABL transcripts at 12 months since nilotinib initiation

Molecular response is assessed using BCR-ABL1 transcript levels measured by realtime quantitative polymerase chain reaction. MMR is defined as a ratio BCR-ABL/ABL ≤0.1% on the international scale (ie, at least 3 log reduction from a standardized baseline value).

Molecular response is assessed using BCR-ABL1 transcript levels measured by realtime quantitative polymerase chain reaction. MMR is defined as a ratio BCR-ABL1/ABL ≤0.1% on the international scale (ie, at least 3 log reduction from a standardized baseline value).

Clinically significant changes in laboratory values and vital signs were reported as AEs or SAEs, as appropriate. Only descriptive analysis.

Number of participants who remained in TFR (≥molecular response (MR) 4.0) without molecular relapse 12 months after entering the TFR phase (without re-starting nilotinib therapy) divided by the number of participants who entered the TFR phase and multiplied by 100. Molecular relapse during TFR is defined as the loss of major molecular response (MMR), or the confirmed loss of MR4.0 (defined by 3 consecutive tests less than MR4.0 assessed at 3 consecutive visits during TFR phase). Participants dropping out early from the study during the TFR phase were considered as unsuccessful TFR. Confidence intervals were calculated based on the Exact Clopper-Pearson method. MMR is defined as≥3.0 log reduction in BCR-ABL transcripts compared to the standardized baseline or ≤0.1% BCR-ABL. MR4.0 is defined as either detectable disease≤0.01% BCR-ABL or undetectable disease in cDNA with≥10,000 ABL transcripts

MMR is defined as BCR-ABL ratio (%) on IS \<= 0.1% (corresponds to \>=3 log reduction of BCR-ABL transcripts from standardized baseline value). Clopper-Pearson method

Major molecular response (MMR) was defined as a value of ≤ 0.1% of BCR-ABL ratio on the IS. The minimum number of control genes for a sample to be valid was 3000. For statistical comparison purpose, MMR was considered as a binary variable with patients achieving MMR grouped as 'responders' and patients not achieving MMR, patients with missing PCR evaluations or patients with atypical transcripts at baseline grouped as 'non-responders'. This endpoint was calculated based on the 12 month analysis.

The rate of confirmed best cumulative CMR was defined as the number of participants who had confirmed CMR during the first 12 months of treatment after the randomization date. Participants who achieved confirmed best cumulative CMR during the first 12 months were considered responders. Participants who dropped out early or who did not provide sufficient data for any reason were considered to be non-responders. The definition of CMR is undetectable BCR-ABL (fusion gene formed between bcr gene from chromosome 22 and abl gene from chromosome 9) where BCR-ABL ratio in % international scale (IS) ≤ 0.00001 by real-time quantitative polymerase chain reaction (RQ-PCR) where there was no detectable BCR-ABL and 1) the test had a sensitivity of at least 4.5 logs below the standardized baseline; 2) RQ-PCR negativity was confirmed on the next RQ-PCR sample (usually 3 months later); and 3) the date of confirmed CMR was the date of the first of two negative results with sensitivity \>4.5 logs.

CCyR was assessed from bone marrow samples. CCyr was defined as having 0% Philadelphia positive (Ph+) chromosome metaphases in bone marrow.

PFS was defined as the time from the date of start of treatment to the date of the first documented progression or death due to any cause. Progression is defined as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions

MMR is defined as the percentage of participants in MMR (reduction of ≥ 3 logs in BCR-ABL transcripts compared to the standardized baseline established in IRIS, or ≤ 0.1% BCR-ABL/ABL % by international scale and measured by real-time quantitative polymerase chain reaction (RQ-PCR)) at 12 months.

MMR is defined as the percentage of participants in MMR (reduction of ≥ 3 logs in BCR-ABL transcripts compared to the standardized baseline established in IRIS, or ≤ 0.1% BCR-ABL/ABL % by international scale and measured by real-time quantitative polymerase chain reaction (RQ-PCR)) at 12 months.

Achievement of deep molecular response (MR4) throught standardized testing of BCR-ABL-transcript Levels

Achievement of deep molecular response (MR4.5) throught standardized testing of BCR-ABL-transcript Levels

MMR is defined as ≤ 0.1% BCR-ABL/control gene (ABL) % by international scale, or equivalent to ≥ 3 log reduction of BCR-ABL transcript from standardized baseline, measured by RQ-PCR (Real time quantitative polymerase chain reaction). BCR-ABL is the fusion gene from breakpoint cluster region and Abelson genes. A patient was counted as having MMR at 6 cycles if the patient met the MMR criteria at the Cycle 6 Visit.

MMR is defined as ≤ 0.1% BCR-ABL/control gene (ABL) % by international scale, or equivalent to ≥ 3 log reduction of BCR-ABL transcript from standardized baseline, measured by RQ-PCR (Real time quantitative polymerase chain reaction). BCR-ABL is the fusion gene from breakpoint cluster region and Abelson genes. A patient was counted as having MMR by 12 cycles if the patient met the MMR criteria at least once at any time between first study drug intake and Cycle 12 visit included.

Cytogenetic response is assessed as the percentage of Philadelphia positive (Ph+) metaphases in the bone marrow. Complete Cytogenetic Response (CCyR) is defined as 0% of Ph+ metaphases. A patient was counted as CCyR at 12 cycles if the patient met the CCyR criteria at the Cycle 12 Visit.

Percentage of particpants without confirmed loss of MMR within 6 months following nilotinib TFR is calculated by dividing the number of patients with no documented confirmed loss of MR4, in the first 6 months after starting nilotinib TFR phase by the number of patients who entered nilotinib TFR phase. Molecular relapse is defined as having a confirmed BCR-ABL ratio above MMR (2 consecutive BCR-ABL levels \>0.1% IS taken approximately 4 weeks apart).

TFR is defined as no confirmed loss of MR4 (Molecular response 4.0 log reduction from baseline) or loss of MMR (major molecular response) and no re-starting of nilotinib therapy within 12 months following cessation of nilotinib. Confirmed loss of MR4 is two consecutive BCR-ABL \> 0.01% IS. Loss of MMR does not require confirmation.

Major Molecular Response (MMR) was defined as BCR-ABL1\^IS ≤0.1%, on the International Scale \[BCR-ABL1IS\]) by 12 months. BCR is the Breakpoint Cluster Region gene / BCR gene product and ABL is the Abelson proto-oncogene. BCR-ABL is the Fusion gene from BCR and ABL/Protein product from BCR-ABL. Participants who withdrew prematurely or those who failed to provide data for the study for other reasons were designated as premature withdrawal or inevaluable, respectively, and were included in the ITT analysis as non-responders.

ORR was defined as the proportion of participants with a best overall response (BOR) of a confirmed complete response or partial response (CR+PR) determined by Response Evaluation Criteria in Solid Tumors (RECIST v1.0) based on local investigators' assessment (CT/MRI/photography). Per RECIST, CR: disappearance of all target lesions, all non-target lesions, and no new lesion; PR: a \>=30% decrease in the sum of the longest dimensions of the target lesions (TLs) taking as a reference the baseline sum, no unequivocal progression of non-TLs, and no new lesions. For CR or PR, tumor measurements must be confirmed by 2nd assessments at least 4 weeks apart.

Progression was defined by McDonald Criteria: A 25% increase in the sum of products of all measurable lesions over smallest sum observed (over baseline if no decrease) using the same techniques as baseline, OR clear worsening of any evaluable disease, OR appearance of any new lesion/site, OR clear clinical worsening OR failure to return for evaluation due to death or deteriorating condition (unless clearly unrelated to this cancer).

4-month progression-free survival rate was defined as the proportion of patients absent death or progression based on Response Evaluation Criteria In Solid Tumors Criteria (RECIST) before 4 months. Per RECIST 1.0 criteria: progressive disease (PD) is at least a 20% increase in the sum of longest diameter (LD) of target lesions taking as reference the smallest sum LD recorded since the treatment started or the appearance of one or more new lesions. PD for the evaluation of non-target lesions is the appearance of one or more new lesions and/or unequivocal progression of non-target lesions.

Percentage of patients who experienced dose-limiting toxicities associated with Nilotinib as defined by the study protocol.

Occurrence of DLTs during cycle 1

The full PK profiles of nilotinib in pediatric patients were assessed using serial sampling following a single 230 mg/m2 dose on Cycle 1 Day 1.

The full PK profiles of nilotinib in pediatric patients were assessed using serial sampling following a single 230 mg/m2 dose on Cycle 1 Day 1.

The full PK profiles of nilotinib in pediatric patients were assessed using serial sampling following a single 230 mg/m2 dose on Cycle 1 Day 1.

The full PK profiles of nilotinib in pediatric patients were assessed using serial sampling following a single 230 mg/m2 dose on Cycle 1 Day 1.

The steady-state PK profiles of nilotinib in pediatric patients were estimated using trough sampling following multiple 230 mg/m2 bid doses

The steady-state PK profiles of nilotinib in pediatric patients were estimated using trough sampling following multiple 230 mg/m2 bid doses

The full PK profiles of nilotinib in pediatric patients were assessed using serial sampling following a single 230 mg/m2 dose.

Major Cytogenetic Response (MCyR) is defined as Complete Cytogenetic Response (CCyR: 0% Ph-chromosome-positive cells in metaphase in bone marrow) or Partial Cytogenetic Response (PCyR: 1-35% Ph-chromosome-positive cells in metaphase in bone marrow).

Hematologic response is defined as the percentage of participants in complete hematologic response (defined as the following present for at least 4 weeks: WBC count \<10 x 109/L, Platelet count \<450 x 109/L, Basophils \<5%, No blasts and promyelocytes in peripheral blood, Myelocytes + metamyelocytes \< 5% in peripheral blood, No evidence of extramedullary disease, including spleen and liver). Hematological response was a primary outcome measure for Arm CML-AP with prior imatinib only.