Criteria: Grade >=3 non-hematologic toxicity (nht), except Grade >=3 infection, fever (including febrile neutropenia), infusion related AEs, electrolyte abnormalities, alanine aminotransferase (AT)/aspartate AT elevation that returned to Grade <=1/baseline within 7 days, allergic reactions possibly related to PF-04449913 that led to discontinuation of study drug; Prolonged myelosuppression lasted >42 days from point of detection = absolute neutrophil count < 500/microliter or platelet count <10*10^9/L with a normal bone marrow (<5% blasts and no evidence of disease or dysplasia); Inability to deliver >=80% of the planned study doses for all agents in a combination due to nht; Delay of >28 days in receiving next scheduled cycle due to persisting nht; Asymptomatic participant with Grade >=3 QTc prolongation required repeat testing, re-evaluation by qualified person, and correction of reversible causes for confirmation. Post-correction, if Grade 3 prolongation persisted, event was a DLT.

DLT evaluable analysis set included all enrolled participants who received at least 1 dose of study medication and who did not have major treatment deviations during first cycle (DLT observation period).

AE:any untoward medical occurrence in participant who received study drug without regard to possibility of causal relationship. Serious AE:any untoward medical occurrence at any dose that resulted in death;was life threatening;required inpatient hospitalization or prolongation of existing hospitalization;resulted in persistent or significant disability/incapacity;resulted in congenital anomaly/birth defect. TEAEs:events absent before treatment or that worsened relative to pretreatment state. Treatment-related TEAE:any untoward medical occurrence attributed to study drug in a participant who received study drug. Relatedness to drug was assessed by the Investigator. National cancer institute common terminology criteria (NCI-CTCAE) Grade(G) v4.0:G 3=severe or medically significant but not immediately life-threatening, hospitalization or prolongation of existing hospitalization indicated, disabling, limiting self-care ADL; G 4:life-threatening consequence, urgent intervention indicated.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication.

Vital signs included blood pressure (sitting or supine) and heart rate. Clinically significant changes in vital signs were determined by the investigator's discretion.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication.

Laboratory parameters included- hematology: lymphocytes/leukocytes percentage (%), neutrophils/leukocytes, basophils/leukocytes, eosinophils/leukocytes and monocytes/leukocytes (%), prothrombin time second (sec), blasts/leukocytes (%); clinical chemistry: lactate dehydrogenase units per liter (u/l), protein gram/liter (g/l), blood urea nitrogen (BUN) millimoles per liter (mmol/l), urate, chloride, calcium (mmol/l); urinalysis: specific gravity, pH, urine glucose and ketones (scalar), nitrite, leukocyte esterase, urine erythrocytes (scalar), urine leukocytes (scalar). In this outcome measure participants for each laboratory parameter were evaluated as normal, abnormal low, abnormal high or abnormal low and an abnormal high. Laboratory values were as per laboratory normal ranges. Values above normal range = abnormal high and below range = abnormal low. Participants with both an abnormal low and high value while on study were reported as 'Abnormal low and Abnormal high'.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication. Here, "number of participants analyzed" signifies participants evaluable for the specific parameter.

Criteria: Grade >=3 non-hematologic toxicity (nht), except Grade >=3 infection, fever (including febrile neutropenia), infusion related AEs, electrolyte abnormalities, alanine aminotransferase (AT)/aspartate AT elevation that returned to Grade <=1/baseline within 7 days, allergic reactions possibly related to PF-04449913 that led to discontinuation of study drug; Prolonged myelosuppression lasted >42 days from point of detection = absolute neutrophil count < 500/microliter or platelet count <10*10^9/L with a normal bone marrow (<5% blasts and no evidence of disease or dysplasia); Inability to deliver >=80% of the planned study doses for all agents in a combination due to nht; Delay of >28 days in receiving next scheduled cycle due to persisting nht; Asymptomatic participant with Grade >=3 QTc prolongation required repeat testing, re-evaluation by qualified person, and correction of reversible causes for confirmation. Post-correction, if Grade 3 prolongation persisted, event was a DLT.

DLT evaluable analysis set included all enrolled participants who received at least 1 dose of study medication and who did not have major treatment deviations during first cycle (DLT observation period).

AE: any untoward medical occurrence in participant who received study drug without regard to possibility of causal relationship. Serious AE: any untoward medical occurrence at any dose that resulted in death; was life threatening; required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability/incapacity; resulted in congenital anomaly/birth defect. TEAEs: events absent before treatment or that worsened relative to pretreatment state. Treatment-related TEAE: any untoward medical occurrence attributed to study drug in a participant who received study drug. Relatedness to drug was assessed by the Investigator. NCI-CTCAE Grade: Grade 3=severe or medically significant but not immediately life-threatening, hospitalization or prolongation of existing hospitalization indicated, disabling, limiting self-care ADL; Grade 4= life-threatening consequence, urgent intervention indicated.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication.

Vital signs included blood pressure (sitting or supine) and heart rate. Clinically significant changes in vital signs were determined by the investigator's discretion.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication.

Laboratory parameters included- hematology: lymphocytes/leukocytes (%), neutrophils/leukocytes (%), basophils/leukocytes (%), eosinophils/leukocytes (%), monocytes/leukocytes (%), prothrombin time (sec), blasts/leukocytes (%); clinical chemistry: lactate dehydrogenase (u/l), protein (g/l), BUN (mmol/l), urate (mmol/l), chloride (mmol/l), calcium (mmol/l); urinalysis: specific gravity (scalar), pH (scalar), urine glucose (scalar), ketones (scalar), nitrite, leukocyte esterase, urine erythrocytes (scalar), urine leukocytes (scalar). In this outcome measure participants for each laboratory parameter were evaluated as normal, abnormal low only, abnormal high only or abnormal low and an abnormal high. Laboratory values were as per laboratory normal ranges. Values above normal range = abnormal high and below range = abnormal low. Participants with both an abnormal low and an abnormal high value while on study were reported as 'Abnormal low and Abnormal high'.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication. Here, "number of participants analyzed" signifies participants evaluable for the specific parameter.

Criteria: Grade >=3 non-hematologic toxicity (nht), except Grade >=3 infection, fever (including febrile neutropenia), infusion related AEs, electrolyte abnormalities, alanine aminotransferase (AT)/aspartate AT elevation that returned to Grade <=1/baseline within 7 days, allergic reactions possibly related to PF-04449913 that led to discontinuation of study drug; Prolonged myelosuppression lasted >42 days from point of detection = absolute neutrophil count < 500/microliter or platelet count <10*10^9/L with a normal bone marrow (<5% blasts and no evidence of disease or dysplasia); Inability to deliver >=80% of the planned study doses for all agents in a combination due to nht; Delay of >28 days in receiving next scheduled cycle due to persisting nht; Asymptomatic participant with Grade >=3 QTc prolongation required repeat testing, re-evaluation by qualified person, and correction of reversible causes for confirmation. Post-correction, if Grade 3 prolongation persisted, event was a DLT.

DLT evaluable analysis set included all enrolled participants who received at least 1 dose of study medication and who did not have major treatment deviations during first cycle (DLT observation period).

AE: any untoward medical occurrence in participant who received study drug without regard to possibility of causal relationship. Serious AE: any untoward medical occurrence at any dose that resulted in death; was life threatening; required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability/incapacity; resulted in congenital anomaly/birth defect. TEAEs: events absent before treatment or that worsened relative to pretreatment state. Treatment-related TEAE: any untoward medical occurrence attributed to study drug in a participant who received study drug. Relatedness to drug was assessed by the Investigator. NCI-CTCAE Grade: Grade 3=severe or medically significant but not immediately life-threatening, hospitalization or prolongation of existing hospitalization indicated, disabling, limiting self-care ADL; Grade 4= life-threatening consequence, urgent intervention indicated.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication.

Vital signs included blood pressure (sitting or supine) and heart rate. Clinically significant changes in vital signs were determined by the investigator's discretion.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication.

Laboratory parameters included- hematology: lymphocytes/leukocytes (%), neutrophils/leukocytes (%), basophils/leukocytes (%), eosinophils/leukocytes (%), monocytes/leukocytes (%), prothrombin time (sec), blasts/leukocytes (%); clinical chemistry: lactate dehydrogenase (u/l), protein (g/l), BUN (mmol/l), urate (mmol/l), chloride (mmol/l), calcium (mmol/l); urinalysis: specific gravity (scalar), pH (scalar), urine glucose (scalar), ketones (scalar), urine erythrocytes (scalar), urine leukocytes (scalar). In this outcome measure participants for each laboratory parameter were evaluated as normal, abnormal low only, abnormal high only or abnormal low and an abnormal high. Participants that had both an abnormal low and an abnormal high value while on study were reported as 'Abnormal low and Abnormal high'.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication. Here "number of participants analyzed" signifies participants evaluable for the specific parameter.

DMR included complete remission (CR), CR with incomplete blood count recovery (Cri), morphologic leukemia-free state (MLFS), marrow CR (mCR) and partial remission (PR). CR: >=11 gram per deciliter (g/dL) hemoglobin (Hgb), >=1*10^9 neutrophils (L), >=100*10^9 platelets (L), 0% blasts, <=5% bone marrow blasts (BMB), normal maturation of all cell lines, if had persistent dysplasia. . CRi: <1000 neutrophils (mcL), <100000 platelets (mcL), <5% BMB, either neutrophils or platelets not recovered, no extramedullary disease (EMD). MLFS: 1000 neutrophils (mcL) and <100000 platelets (mcL), <5% BMB, neutrophils and platelets not recovered, flow cytometry negative, no EMD. PR: >=1000 neutrophils (mcL), >=100000 platelets (mcL), decrease to 5-25 and >=50% decrease from start, Blasts <=5% if Auer rod positive. mCR: hematologic improvement (HI) response, <=5% and decreased by >=50% BMB. PR: decrease by >=50% but still >5% BMB.

Full analysis set (FAS) included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1.

Criteria: Grade >=3 non-hematologic toxicity (nht), except Grade >=3 infection, fever (including febrile neutropenia), infusion related AEs, electrolyte abnormalities, alanine aminotransferase (AT)/aspartate AT elevation that returned to Grade <=1/baseline within 7 days, allergic reactions possibly related to PF-04449913 that led to discontinuation of study drug; Prolonged myelosuppression lasted >42 days from point of detection = absolute neutrophil count < 500/microliter or platelet count <10*10^9/L with a normal bone marrow (<5% blasts and no evidence of disease or dysplasia); Inability to deliver >=80% of the planned study doses for all agents in a combination due to nht; Delay of >28 days in receiving next scheduled cycle due to persisting nht; Asymptomatic participant with Grade >=3 QTc prolongation required repeat testing, re-evaluation by qualified person, and correction of reversible causes for confirmation. Post-correction, if Grade 3 prolongation persisted, event was a DLT.

DLT evaluable analysis set included all enrolled participants who received at least 1 dose of study medication and who did not have major treatment deviations during first cycle (DLT observation period).

AE: any untoward medical occurrence in participant who received study drug without regard to possibility of causal relationship. Serious AE: any untoward medical occurrence at any dose that resulted in death; was life threatening; required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability/incapacity; resulted in congenital anomaly/birth defect. TEAEs: events absent before treatment or that worsened relative to pretreatment state. Treatment-related TEAE: any untoward medical occurrence attributed to study drug in a participant who received study drug. Relatedness to drug was assessed by the Investigator. NCI-CTCAE Grade: Grade 3=severe or medically significant but not immediately life-threatening, hospitalization or prolongation of existing hospitalization indicated, disabling, limiting self-care ADL; Grade 4= life-threatening consequence, urgent intervention indicated.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication.

Vital signs included blood pressure (sitting or supine) and heart rate. Clinically significant changes in vital signs were determined by the investigator's discretion.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication.

Laboratory parameters included- hematology: lymphocytes/leukocytes (%), neutrophils/leukocytes (%), basophils/leukocytes (%), eosinophils/leukocytes (%), monocytes/leukocytes (%), blasts/leukocytes (%); clinical chemistry: lactate dehydrogenase (u/l), protein (g/l), BUN (mmol/l), urate (mmol/l), chloride (mmol/l), calcium (mmol/l); urinalysis: specific gravity (scalar), pH (scalar), urine glucose (scalar), ketones (scalar), nitrite, leukocyte esterase, urine erythrocytes (scalar), urine leukocytes (scalar). In this outcome measure participants for each laboratory parameter were evaluated as normal, abnormal low only, abnormal high only or abnormal low and an abnormal high. Participants that had both an abnormal low and an abnormal high value while on study were reported as 'Abnormal low and Abnormal high'.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication. Here "number of participants analyzed" signifies participants evaluable for the specific parameter.

Pharmacokinetic (PK) parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

Terminal plasma half-life is the time required to divide the plasma concentration by two after reaching pseudo-equilibrium.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

AUCtau, was determined by linear/log trapezoidal method. For AUC, tau (dosing interval) was 24 hours. AUClast = area under the curve from time zero to last quantifiable concentration. AUCinf = AUClast + (Clast/kel), where Clast = predicted plasma concentration at the last quantifiable time point estimated from the log-linear regression analysis, and where kel = terminal elimination phase rate constant calculated by a linear regression of the log-linear concentration-time curve.

PK parameter analysis set included all treated participants with at least 1 PK parameter of interest of any of the study drugs.

CL/F was defined as apparent total clearance of the drug from plasma after oral administration. CL/F of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. CL/F obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed.

PK parameter analysis set included all treated participants with at least 1 PK parameter of interest of any of the study drugs.

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 blood concentration of a drug.

PK parameter analysis set included all treated participants with at least 1 PK parameter of interest of any of the study drugs.

Cmax = Maximum plasma concentration, observed directly from data. Cmin = Minimum plasma concentration observed directly from data. Cavg = Average plasma concentration over the dosing interval, dosing interval was of 24 hours. Ctrough = Pre-dose concentration, observed directly from data.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs. Here "number of participants analyzed" signifies participants evaluable for the specific parameter.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure.

AUCtau, was determined by linear/log trapezoidal method. For AUC, tau (dosing interval) was 24 hours. AUClast = area under the curve from time zero to last quantifiable concentration. AUCinf = AUClast + (Clast/kel), where Clast = predicted plasma concentration at the last quantifiable time point estimated from the log-linear regression analysis, and where kel = terminal elimination phase rate constant calculated by a linear regression of the log-linear concentration-time curve.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure.

CL/F was defined as apparent total clearance of the drug from plasma after oral administration. CL/F of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. CL/F obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure.

Rac was the observed accumulation ratio for AUCtau, determined as ratio of Day 21 AUCtau to Day -5 AUCtau. AUCtau, was determined by linear/log trapezoidal method. For AUC, tau (dosing interval) was 24 hours.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure.

Rss = Ratio of Day 21 AUCtau to Day -5 AUCinf. AUCinf = AUClast + (Clast/kel), where Clast = predicted plasma concentration at the last quantifiable time point estimated from the log-linear regression analysis, and where kel = terminal elimination phase rate constant calculated by a linear regression of the log-linear concentration-time curve. AUCtau, was determined by linear/log trapezoidal method. For AUC, tau (dosing interval) was 24 hours.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure.

Biomarker assessments were used to understand the in vivo mechanism of action of PF-04449913, as well as potential mechanisms of resistance. In this outcome measure ratio of GLI1 levels (mRNA, fresh tissue) at baseline to day 21 cycle 1 is reported.

The PD analysis set included all enrolled participants who received at least 1 dose of PF-04449913 and had at least 1 pharmacodynamic parameter in active treatment period. Here "number of participants analyzed" signifies participants evaluable for the specific parameter.

Best response observed for: CR, Cri, MLFS, PR, PRi, CytogeneticCR(CRc), MolecularCR(CRm). For AML-CR:neutrophils(nt) [mcL]>=1000, platelets(pt)[mcL]>=10^5, BMB<5%. CRi:nt(mcL)<1000/pt(mcL)<10^5, BMB<5%. MLFS:nt(mcL)1000 and pt(mcL)<10^5, BMB<5%. PR:nt(mcL)>=1000, pt(mcL)>=10^5, decrease to 5-25 and >=50% decrease from start. PRi: nt<1000, <10^5. CRc: nt(mcL)>1,000, pt(mcL)>10^5, BMB<5%. CRm: nt(mcL)>1,000, pt(uL)>10^5, BMB<5%. For myelodysplasia-CR: hemoglobin(Hgb)[gram per deciliter{g/dL}]>=11, nt(L)>=1*10^9, pt(L)>=100*10^9, blasts0%, BMB<=5%. mCR:<=5% and decreased by >=50% BMB. PR:decrease by>=50% with >5% BMB, CRc: disappearance of chromosomal abnormality, no new appearance, PRc:>=50% reduced chromosomal abnormality. For myleofibrosis-CR: hgb(g/L)>=110, nt(L)>=1*10^9, pt(L)>=100*10^9, All <=ULN, BMB <=5%. PR: hgb>=110, nt(L)>=1*10^9, pt(L)>=100*10^9. CML- PR: 1-35% Philadelphia chromosome(PC) positive(+) cells, CR:0% PC+ cells. Responses with at least 1 participant were reported.

FAS included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1. Here, "number of participants analyzed" signifies participants evaluable for the specified rows.

Cmax = Maximum plasma concentration, observed directly from data. Cmin = Minimum plasma concentration observed directly from data. Cavg = Average plasma concentration over the dosing interval, dosing interval was of 24 hours. Ctrough = Pre-dose concentration, observed directly from data.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

AUCtau was determined by linear/log trapezoidal method. For AUC, tau (dosing interval) was 24 hours.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

CL/F was defined as apparent total clearance of the drug from plasma after oral administration. CL/F of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. CL/F obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

LDAC= low dose ara-cytarabine/low dose cytarabine. Cmax = Maximum plasma concentration, observed directly from data. Cmin = Minimum plasma concentration observed directly from data. Cavg = Average plasma concentration over the dosing interval, dosing interval was of 24 hours, dosing interval was of 12 hours. Ctrough = Pre-dose concentration, observed directly from data.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs. Here, "number of participants analyzed" signifies participants evaluable for the specific timepoint.

LDAC= low dose ara-cytarabine/low dose cytarabine.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

LDAC= low dose ara-cytarabine/low dose cytarabine. Terminal plasma half-life is the time required to divide the plasma concentration by two after reaching pseudo-equilibrium.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs. Here, "number of participants analyzed" signifies participants evaluable for the specific parameter.

LDAC= low dose ara-cytarabine/low dose cytarabine. AUCinf = AUClast + (Clast/kel), where Clast = predicted plasma concentration at the last quantifiable time point estimated from the log-linear regression analysis, and where kel = terminal elimination phase rate constant calculated by a linear regression of the log-linear concentration-time curve. AUCtau, was determined by linear/log trapezoidal method. For AUC, tau (dosing interval) was 12 hours.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs. Here, "number of participants analyzed" signifies participants evaluable for the specific parameter.

Ara-uridine was a metabolite of cytarabine. Cmax = Maximum plasma concentration, observed directly from data. Cmin = Minimum plasma concentration observed directly from data. Cavg = Average plasma concentration over the dosing interval, dosing interval was of 12 hours. Ctrough = Pre-dose concentration, observed directly from data. Ara-uridine was a metabolite of cytarabine.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

Ara-uridine was a metabolite of cytarabine.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

Cmax = Maximum plasma concentration, observed directly from data. Cmin = Minimum plasma concentration observed directly from data. Cavg = Average plasma concentration over the dosing interval, dosing interval was of 24 hours. Ctrough = Pre-dose concentration, observed directly from data.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

AUCtau, was determined by linear/log trapezoidal method. For AUC, tau (dosing interval) was 24 hours.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

CL/F was defined as apparent total clearance of the drug from plasma after oral administration. CL/F of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. CL/F obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

Cmax = Maximum plasma concentration, observed directly from data. Cmin = Minimum plasma concentration observed directly from data. Cavg = Average plasma concentration over the dosing interval, dosing interval was of 24 hours. Ctrough = Pre-dose concentration, observed directly from data.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

Terminal plasma half-life is the time required to divide the plasma concentration by two after reaching pseudo-equilibrium

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

AUCinf = AUClast + (Clast/kel), where Clast = predicted plasma concentration at the last quantifiable time point estimated from the log-linear regression analysis, and where kel = terminal elimination phase rate constant calculated by a linear regression of the log-linear concentration-time curve. AUCtau, was determined by linear/log trapezoidal method. For AUC, tau (dosing interval) was 24 hours.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

Cmax = Maximum plasma concentration, observed directly from data. Cmin = Minimum plasma concentration observed directly from data. Cavg = Average plasma concentration over the dosing interval of 24 hours. Ctrough = Pre-dose concentration, observed directly from data. Daunorubicinol was a metabolite of daunorubicin.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

Daunorubicinol was a metabolite of daunorubicin.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

Daunorubicinol was a metabolite of daunorubicin. AUCtau, was determined by linear/log trapezoidal method. For AUC, tau (dosing interval) was 24 hours.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

Biomarker assessments were used to understand the in vivo mechanism of action of PF-04449913, as well as potential mechanisms of resistance. In this outcome measure ratio of GLI1 levels (mRNA, fresh tissue) at baseline to day 21 cycle 1 is reported.

The PD analysis set included all enrolled participants who received at least 1 dose of PF-04449913 and had at least 1 pharmacodynamic parameter in active treatment period. Here, "number of participants analyzed" signifies participants evaluable for the specific parameter.

Biomarker assessments were used to understand the in vivo mechanism of action of PF-04449913, as well as potential mechanisms of resistance. In this outcome measure ratio of GLI1 levels (mRNA, fresh tissue) at baseline to day 21 cycle 1 is reported.

The PD analysis set included all enrolled participants who received at least 1 dose of PF-04449913 and had at least 1 pharmacodynamic parameter in active treatment period. Here, "number of participants analyzed" signifies participants evaluable for the specific parameter.

Best response observed for: CR, Cri, MLFS, PR, PRi, CRc, CRm. Response criteria for participants with AML- CR: neutrophils [mcL] >=1000, platelets(pt)[mcL] >=10^5, BMB <5%. CRi: neutrophils (mcL) <1000 or pt (mcL) <100000, BMB <5%. MLFS: neutrophils (mcL) 1000 and pt (mcL) <10^5, BMB <5%. PR: neutrophils (mcL) >=1000, pt (mcL) >=100000, decrease to 5-25 and >=50% decrease from start. PRi: neutrophils (mcL) <1000 or pt (mcL) <10^5, BMB decrease to 5-25 and >=50% decrease from start. Minor Response: BMB >=25% decrease from start. CRc: neutrophils (mcL) >1,000, pt (mcL) >10^6, BMB <5%. CRm: neutrophils (mcL) >1,000, pt (mcL) >100,000, BMB <5%. For participants with myelodysplastic syndrome (MDS), DMR- CR: >=11 Hgb (g/dL), >=1*10^9 neutrophils(L), >=100*10^9 pt(L), 0% blasts, <=5% BMB. mCR: HI response, <=5% and decreased by >=50% BMB. PR: decrease by >=50% but still >5% BMB. Only those responses which had at least 1 participant were reported.

FAS included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1. Here, "number of participants analyzed" signifies participants evaluable for the specified rows.

Best response observed for: CR, Cri, MLFS, PR, PRi, CRc, CRm. Response criteria for AML- CR:neutrophils(nt)[mcL] >=1000, platelets (mcL) >=100000, BMB <5%. CRi: nt(mcL) <1000 or platelets (mcL) <100000, BMB <5%. MLFS: nt(mcL) 1000 and platelets (mcL) <100000, BMB <5%. PR: nt(mcL) >=1000, platelets (mcL) >=100000, decrease to 5-25 and >=50% decrease from start. PRi: nt(mcL) <1000 or platelets (mcL) <100000, BMB decrease to 5-25 and >=50% decrease from start. Minor Response: BMB >=25% decrease from start. Cytogenetic CR (CRc): nt(mcL) >1,000, platelets (mcL) >100,000, BMB <5%. CRm: nt(mcL) >1,000, platelets (mcL) >100,000, BMB <5%. For participants with myelodysplastic syndrome (MDS), DMR was defined as - CR: >=11 Hgb (g/dL), >=1*10^9 nt(L), >=100*10^9 platelets (L), 0% blasts, <=5% BMB. mCR: HI response, <=5% and decreased by >=50% BMB. PR: decrease by >=50% but still >5% BMB. Only those responses which had at least 1 participant were reported.

FAS included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1.

CR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, bone marrow blasts (BMB) <5%. CRi: neutrophils (mcL) <1000 or platelets (mcL) <100000, BMB <5%. DMR included CR, CRi, MLFS, mCR and PR. CR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, bone marrow blasts (BMB) <5%. CRi: neutrophils (mcL) <1000 or platelets (mcL) <100000, BMB <5%. MLFS: neutrophils (mcL) 1000 and platelets (mcL) <100000, BMB <5%. PR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, BMB decrease to 5-25 and >=50% decrease from start.

FAS included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1.

Duration of response was the time from the date of first documentation of a CR/CRi and DMR to the date of first documentation of relapse after CR/CRi and DMR or death due to any cause. Duration of response data was censored on the date of the last adequate response assessment for participants who do not have an event (relapse or death). DMR included CR, CRi, MLFS, mCR and PR. CR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, bone marrow blasts (BMB) <5%. CRi: neutrophils (mcL) <1000 or platelets (mcL) <100000, BMB <5%. MLFS: neutrophils (mcL) 1000 and platelets (mcL) <100000, BMB <5%. PR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, BMB decrease to 5-25 and >=50% decrease from start.

FAS included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure.

The time from the date of first dose of study drug to the date of first documentation of a CR or CRi and DMR. DMR included CR, CRi, MLFS, mCR and PR. CR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, BMB <5%. CRi: neutrophils (mcL) <1000 or platelets (mcL) <100000, BMB <5%. MLFS: neutrophils (mcL) 1000 and platelets (mcL) <100000, BMB <5%. PR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, BMB decrease to 5-25 and >=50% decrease from start.

FAS included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1. Here, " Number of Participants Analyzed" signifies participants evaluable for this outcome measure.

Overall survival was defined as the time from the date of first dose of study drug to the date of death due to any cause. Participants last known to be alive were censored at the date of last contact.

FAS included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1.

OS was defined as the time from the date of first dose of study drug to the date of death due to any cause. Participants last known to be alive were censored at the date of last contact.

FAS included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1.

Best response observed for: CR, Cri, MLFS, PR, PRi, CytogeneticCR(CRc), MolecularCR(CRm). For AML-CR:neutrophils(nt) [mcL]>=1000, platelets(pt)[mcL]>=10^5, BMB<5%. CRi:nt(mcL)<1000/pt(mcL)<10^5, BMB<5%. MLFS:nt(mcL)1000 and pt(mcL)<10^5, BMB<5%. PR:nt(mcL)>=1000, pt(mcL)>=10^5, decrease to 5-25 and >=50% decrease from start. PRi: nt<1000, <10^5. CRc: nt(mcL)>1,000, pt(mcL)>10^5, BMB<5%. CRm: nt(mcL)>1,000, pt(uL)>10^5, BMB<5%. For myelodysplasia-CR: hemoglobin(Hgb)[gram per deciliter{g/dL}]>=11, nt(L)>=1*10^9, pt(L)>=100*10^9, blasts0%, BMB<=5%. mCR:<=5% and decreased by >=50% BMB. PR:decrease by>=50% with >5% BMB, CRc: disappearance of chromosomal abnormality, no new appearance, PRc:>=50% reduced chromosomal abnormality. For myleofibrosis-CR: hgb(g/L)>=110, nt(L)>=1*10^9, pt(L)>=100*10^9, All <=ULN, BMB <=5%. PR: hgb>=110, nt(L)>=1*10^9, pt(L)>=100*10^9. CML- PR: 1-35% Philadelphia chromosome(PC) positive(+) cells, CR:0% PC+ cells. Responses with at least 1 participant were reported.

FAS included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1.

CR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, bone marrow blasts (BMB) <5%. CRi: neutrophils (mcL) <1000 or platelets (mcL) <100000, BMB <5%. DMR included CR, CRi, MLFS, mCR and PR. CR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, bone marrow blasts (BMB) <5%. CRi: neutrophils (mcL) <1000 or platelets (mcL) <100000, BMB <5%. MLFS: neutrophils (mcL) 1000 and platelets (mcL) <100000, BMB <5%. PR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, BMB decrease to 5-25 and >=50% decrease from start.

FAS included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1.

Duration of response was the time from the date of first documentation of a CR/CRi and DMR to the date of first documentation of relapse after CR/CRi and DMR or death due to any cause. Duration of response data was censored on the date of the last adequate response assessment for participants who do not have an event (relapse or death). DMR included CR, CRi, MLFS, mCR and PR. CR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, bone marrow blasts (BMB) <5%. CRi: neutrophils (mcL) <1000 or platelets (mcL) <100000, BMB <5%. MLFS: neutrophils (mcL) 1000 and platelets (mcL) <100000, BMB <5%. PR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, BMB decrease to 5-25 and >=50% decrease from start.

FAS included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure.

The time from the date of first dose of study drug to the date of first documentation of a CR or CRi and DMR. DMR included CR, CRi, MLFS, mCR and PR. CR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, BMB <5%. CRi: neutrophils (mcL) <1000 or platelets (mcL) <100000, BMB <5%. MLFS: neutrophils (mcL) 1000 and platelets (mcL) <100000, BMB <5%. PR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, BMB decrease to 5-25 and >=50% decrease from start.

FAS included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1. Here, "Number of Participants Analyzed" signifies participants evaluable for this outcome measure.

Biomarker assessments were used to understand the in vivo mechanism of action of PF-04449913, as well as potential mechanisms of resistance. In this outcome measure ratio of GLI1 levels (Blood, mRNA) at baseline to day 21 cycle 1 is reported.

The PD analysis set included all enrolled participants who received at least 1 dose of PF-04449913 and had at least 1 pharmacodynamic parameter in active treatment period. Here, "Number of Participants analyzed" signifies participants evaluable for the specific parameter.

Cmax = Maximum plasma concentration, observed directly from data. Cmin = Minimum plasma concentration observed directly from data. Cavg = Average plasma concentration over the dosing interval, dosing interval was of 24 hours. Ctrough = Pre-dose concentration, observed directly from data.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs. Here, "Number of Participants analyzed" signifies participants evaluable for the specific timepoint.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs. Here, "Number of Participants analyzed" signifies participants evaluable for the specific timepoint.

AUCtau, was determined by linear/log trapezoidal method. For AUC, tau (dosing interval) was 24 hours.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs. Here, "Number of participants analyzed" signifies participants evaluable for the specific timepoint.

CL/F was defined as apparent total clearance of the drug from plasma after oral administration. CL/F of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. CL/F obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs. Here, "Number of participants analyzed" signifies participants evaluable for the specific timepoint.

Cmax = Maximum plasma concentration, observed directly from data. Cmin = Minimum plasma concentration observed directly from data. Cavg = Average plasma concentration over the dosing interval of 24 hours. Ctrough = Pre-dose concentration, observed directly from data.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

AUCtau, was determined by linear/log trapezoidal method. For AUC, tau (dosing interval) was 24 hours. AUCinf = AUClast + (Clast/kel), where Clast = predicted plasma concentration at the last quantifiable time point estimated from the log-linear regression analysis, and where kel = terminal elimination phase rate constant calculated by a linear regression of the log-linear concentration-time curve.

PK parameter analysis set included all treated participants with at least 1 PK parameters of interest of any of the study drugs.

Overall survival was defined as the time from the date of first dose of study drug to the date of death due to any cause. Participants last known to be alive were censored at the date of last contact.

FAS included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1.

Biomarker assessments were used to understand the in vivo mechanism of action of PF-04449913, as well as potential mechanisms of resistance. In this outcome measure ratio of GLI1 levels (Blood, mRNA) to end of treatment is reported.

The PD analysis set included all enrolled participants who received at least 1 dose of PF-04449913 and had at least 1 pharmacodynamic parameter in active treatment period. Here, "Number of participants analyzed" signifies participants evaluable for the specific parameter.

Best response observed for: CR, Cri, MLFS, PR, PRi, CRc, CRm. Response criteria for participants with AML- CR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, BMB <5%. CRi: neutrophils (mcL) <1000 or platelets (mcL) <100000, BMB <5%. MLFS: neutrophils (mcL) 1000 and platelets (mcL) <100000, BMB <5%. PR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, decrease to 5-25 and >=50% decrease from start. PRi: neutrophils (mcL) <1000 or platelets (mcL) <100000, BMB decrease to 5-25 and >=50% decrease from start. Minor Response: BMB >=25% decrease from start. CRc: neutrophils (mcL) >1,000, platelets (mcL) >100,000, BMB <5%. CRm: neutrophils (mcL) >1,000, platelets (mcL) >100,000, BMB <5%. Only those responses which had at least 1 participant were reported.

FAS included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1.

CR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, bone marrow blasts (BMB) <5%. CRi: neutrophils (mcL) <1000 or platelets (mcL) <100000, BMB <5%. DMR included CR, CRi, MLFS, mCR and PR. CR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, bone marrow blasts (BMB) <5%. CRi: neutrophils (mcL) <1000 or platelets (mcL) <100000, BMB <5%. MLFS: neutrophils (mcL) 1000 and platelets (mcL) <100000, BMB <5%. PR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, BMB decrease to 5-25 and >=50% decrease from start.

FAS included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1.

Duration of response was the time from the date of first documentation of a CR/CRi and DMR to the date of first documentation of relapse after CR/CRi and DMR or death due to any cause. Duration of response data was censored on the date of the last adequate response assessment for participants who do not have an event (relapse or death). DMR included CR, CRi, MLFS, mCR and PR. CR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, bone marrow blasts (BMB) <5%. CRi: neutrophils (mcL) <1000 or platelets (mcL) <100000, BMB <5%. MLFS: neutrophils (mcL) 1000 and platelets (mcL) <100000, BMB <5%. PR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, BMB decrease to 5-25 and >=50% decrease from start.

FAS included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1. Here, "Number of participants analyzed" signifies participants evaluable for this outcome measure.

The time from the date of first dose of study drug to the date of first documentation of a CR or CRi and DMR. DMR included CR, CRi, MLFS, mCR and PR. CR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, bone marrow blasts (BMB) <5%. CRi: neutrophils (mcL) <1000 or platelets (mcL) <100000, BMB <5%. MLFS: neutrophils (mcL) 1000 and platelets (mcL) <100000, BMB <5%. PR: neutrophils (mcL) >=1000, platelets (mcL) >=100000, BMB decrease to 5-25 and >=50% decrease from start.

FAS included all enrolled participants who received at least 1 dose of study medication on or after Cycle 1/Day 1. Here, "Number of participants analyzed" signifies participants evaluable for this outcome measure.

Laboratory parameters included- hematology: lymphocytes/leukocytes (%), neutrophils/leukocytes (%), basophils/leukocytes (%), eosinophils/leukocytes (%), monocytes/leukocytes (%), prothrombin time (sec), blasts/leukocytes (%); clinical chemistry: lactate dehydrogenase (u/l), protein (g/l), blood urea nitrogen (BUN) (mmol/l), urate (mmol/l), chloride (mmol/l), calcium (mmol/l); urinalysis: specific gravity (scalar), pH (scalar), urine glucose (scalar), ketones (scalar), nitrite, leukocyte esterase, urine erythrocytes (scalar), urine leukocytes (scalar). In this outcome measure participants for each laboratory parameter were evaluated as normal, abnormal low only, abnormal high only or abnormal low and an abnormal high. Laboratory values were as per laboratory normal ranges. Values above normal range = abnormal high and below range = abnormal low. Participants with both an abnormal low and an abnormal high value while on study were reported as 'Abnormal low and Abnormal high'.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication. Here, "Number of participants analyzed" signifies participants evaluable for this outcome measure.

AE:any untoward medical occurrence in participant who received study drug without regard to possibility of causal relationship. Serious AE:any untoward medical occurrence at any dose that resulted in death,was life threatening,required inpatient hospitalization or prolongation of existing hospitalization;resulted in persistent or significant disability/incapacity,resulted in congenital anomaly/birth defect. TEAEs:events absent before treatment or that worsened relative to pretreatment state. Treatment-related TEAE:any untoward medical occurrence attributed to study drug in a participant who received study drug. Relatedness to drug was assessed by the Investigator. National cancer institute common terminology criteria (NCI-CTCAE) Grade(G) v4.0:G 3=severe or medically significant but not immediately life-threatening, hospitalization or prolongation of existing hospitalization indicated, disabling, limiting self-care ADL; G 4:life-threatening consequence, urgent intervention indicated.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication.

Vital signs included blood pressure (sitting or supine) and heart rate. Vital sign criteria included: Systolic BP: <90 millimeter of mercury [mmHg]; Systolic BP change from baseline: maximum increase and decrease >=30 mmHg; Diastolic BP minimum < 50 mmHg; Diastolic BP change from baseline: maximum decrease and increase >=20 mmHg; heart rate <40 and >120 beats per minute. Clinically significant changes in vital signs were determined by the investigator's discretion.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication.

Vital signs included blood pressure (sitting or supine) and heart rate. Vital sign criteria included: Systolic BP: <90 millimeter of mercury [mmHg]; Systolic BP change from baseline: maximum increase and decrease >=30 mmHg; Diastolic BP minimum < 50 mmHg; Diastolic BP change from baseline: maximum decrease and increase >=20 mmHg; heart rate <40 and >120 beats per minute. Clinically significant changes in vital signs were determined by the investigator's discretion.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication. Here, "Number of participants analyzed" signifies participants evaluable for this outcome measure.

AE: any untoward medical occurrence in participant who received study drug or medical device without regard to possibility of causal relationship with the treatment or usage. Serious AE: any untoward medical occurrence at any dose that resulted in death; was life threatening; required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability/incapacity; resulted in congenital anomaly/birth defect. TEAEs: events absent before treatment or that worsened relative to pretreatment state. Treatment-related TEAE: any untoward medical occurrence attributed to study drug in a participant who received study drug. Relatedness to drug was assessed by the Investigator. NCI-CTCAE Grade: Grade 3=severe or medically significant but not immediately life-threatening, hospitalization or prolongation of existing hospitalization indicated, disabling, limiting self-care ADL; Grade 4= life-threatening consequence, urgent intervention indicated.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication. Here, "Number of participants analyzed" signifies participants evaluable for this outcome measure.

Laboratory parameters included- hematology: lymphocytes/leukocytes (%), neutrophils/leukocytes (%), basophils/leukocytes (%), eosinophils/leukocytes (%), monocytes/leukocytes (%), prothrombin time (sec), blasts/leukocytes (%); clinical chemistry: lactate dehydrogenase (u/l), protein (g/l), blood urea nitrogen (BUN) (mmol/l), urate (mmol/l), chloride (mmol/l), calcium (mmol/l); urinalysis: specific gravity (scalar), pH (scalar), urine glucose (scalar), ketones (scalar), nitrite, leukocyte esterase, urine erythrocytes (scalar), urine leukocytes (scalar). In this outcome measure participants for each laboratory parameter were evaluated as normal, abnormal low only, abnormal high only or abnormal low and an abnormal high. Laboratory values were as per laboratory normal ranges. Values above normal range = abnormal high and below range = abnormal low. Participants with both an abnormal low and an abnormal high value while on study were reported as 'Abnormal low and Abnormal high'.

Safety analysis set included all enrolled participants who received at least 1 dose of study medication.