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Pharmacokinetics and Safety Study of Azacitidine in Cancer Patients With and Without Impaired Renal Function

A Phase 1, Open-Label, Multi-Center, Parallel Group Study to the Pharmacokinetics and Safety of Subcutaneous Azacitidine in Adult Cancer Patients With and Without Impaired Renal Function

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00652626
Acronym
RENAL
Enrollment
31
Registered
2008-04-04
Start date
2008-11-01
Completion date
2012-07-01
Last updated
2019-11-19

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

Conditions

AML, Hodgkin's Disease, MDS, Multiple Myeloma, Non-Hodgkin's Lymphoma, Solid Tumors

Keywords

MDS, AML, Solid Tumors, Azacitidine, PK, Pharmacokinetics, Renal Impairment, Multiple Myeloma, Non-Hodgkin's Lymphoma, Hodgkin's Disease

Brief summary

The purpose of this study is to evaluate three things. The first being whether azacitidine is absorbed in the body at the same rate or proportion for different concentrations. The second is to determine the effect renal impairment has or does not have on the absorption of azacitidine. The third is to determine if azacitidine is safe and well tolerated in patients with renal function impairment.

Interventions

DRUGazacitidine

Sponsors

Celgene
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE

Eligibility

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

Inclusion criteria

* Diagnosis of one of the following: * MDS according to the French-American-British (FAB) classification system: refractory anemia (RA), refractory anemia with ringed sideroblasts (RARS), refractory anemia with excess blasts (RAEB), refractory anemia with excess blasts in transformation (RAEB-T), or chronic myelomonocytic leukemia (CMML); or * Acute myelogenous leukemia (AML) in remission, * Malignant solid tumor, * Multiple myeloma (MM), * Non-Hodgkin lymphoma (NHL), or * Hodgkin lymphoma (HD) * Patients with a history of treated brain metastases should be clinically stable for greater than 4 weeks prior to signing the informed consent form and off glucocorticoid therapy for central nervous system (CNS) edema for at least 4 weeks * Be capable of giving informed consent * Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0-2 * Have a life expectancy ≥ 3 months * Have stable renal function for at least 2 months * Have average calculated creatinine clearance of: * \>80 mL/min/1.73m\^2 for Cohorts 1, 2, 3, and 4 * \<30 mL/min/1.73m\^2 for Cohort 5 - Severe renal impairment, * 50-80 mL/min/1.73m\^2 for Cohort 6 - Mild renal impairment, * 30 to \<50 mL/min/1.73m\^2 for Cohort 7 - Moderate renal impairment * Have organ and marrow function at the screening and pre-dose visits as defined below: * Hemoglobin ≥8 g/dL, * Absolute neutrophil count ≥0.75 x 10\^3/µL, * Platelets ≥30 x 10\^3/µL, * Total bilirubin ≤1.5 times the upper limit of normal (ULN), * Aspartate aminotransferase (AST) ≤2 times the ULN, and * Alanine transaminase (ALT) ≤2 times the ULN; * Have a 12-lead electrocardiogram (ECG) that is not clinically significant, as determined by the Investigator, at screening * Have serum bicarbonate: * 20 mEq/L for patients with normal renal function (cohorts 1, 2, 3 and 4), * 16 mEq/L for patients with impaired renal function (cohorts 5, 6 and 7) * Women of childbearing potential may participate, providing are not pregnant and agree to use at least 2 effective contraceptive methods throughout the study * Males with a female partner of childbearing potential must agree to use at least 2 effective contraceptive methods throughout the study and to avoid fathering a child for 6 months following the date of the last dose of study medication * Be a nonsmoker or must not have smoked for at least 30 days before the screening visit and agree to abstain from smoking during study participation

Exclusion criteria

* Women who are pregnant or nursing; * Had chemotherapy or radiotherapy within 4 weeks (6 weeks for nitrosoureas or mitomycin C) prior to signing informed consent * Have been treated with an investigational agent within 4 weeks prior to signing the informed consent form * Have ongoing clinically significant adverse event(s) due to chemotherapy, radiotherapy or investigational agents administered more than 4 weeks prior to signing the informed consent as determined by the Investigator * Have known or suspected hypersensitivity to azacitidine or mannitol * Have an uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia * Have low blood pressure (supine blood pressure \<90/60 mmHg) * Have human immunodeficiency virus (HIV), or active hepatitis virus B or C * Have advanced malignant hepatic tumors * Have end stage renal disease requiring dialysis

Design outcomes

Primary

MeasureTime frameDescription
Area Under the Plasma Concentration-time Curve From Time 0 to 8 Hours Post-doseDay 1 at predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-doseArea under the plasma concentration-time curve from time 0 to 8 hours post-dose (AUC0-8) of azacitidine following a single dose of azacitidine on Day 1, calculated by the linear trapezoidal rule.
Area Under the Plasma Concentration-time Curve From Time Zero to the Last Quantifiable Time PointDay 1 at predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-doseArea under the plasma concentration-time curve from time zero to the last quantifiable time point (AUC0-t) of azacitidine following a single dose of azacitidine on Day 1, calculated by the linear trapezoidal rule.
Area Under the Plasma Concentration-time Curve From Time Zero to InfinityDay 1 at predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-doseThe area under the plasma concentration-time curve from time zero to infinity (AUC0-inf) for azacitidine after a single dose, calculated by the linear trapezoidal rule and extrapolated to infinity according to the following equation: AUC0-inf = AUC0-t + (Ct/ke), where Ct is the last quantifiable concentration and ke = elimination rate constant.
Maximum Plasma Concentration of Azacitidine (Cmax)Day 1 at predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-doseThe maximum observed plasma concentration of azacitidine after a single dose on Day 1.
Time to Maximum Plasma Concentration of Azacitidine (Tmax)Day 1 at predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-doseThe time to first maximum observed plasma concentration of azacitidine after a single dose on Day 1.
Terminal Phase Half-life of Azacitidine (t½)Day 1 at predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-doseThe terminal phase half-life of azacitidine after a single dose on Day 1, calculated according to the following equation: t½ = 0.693/λz, where λz is the terminal phase rate constant.
Apparent Total Clearance of Azacitidine (CL/F)Day 1 at predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-doseThe apparent total clearance of azacitidine after a single dose on Day 1, calculated as Dose/AUC0-inf.
Apparent Volume of Distribution of Azacitidine (Vz/F)Day 1 at predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-doseThe apparent volume of distribution of azacitidine after a single dose on Day 1, calculated according to the equation: Vz/F = Apparent total clearance (CL/F) / terminal phase rate constant (λz)
Area Under the Plasma Concentration-time Curve From Time 0 to 8 Hours Post-dose After Single and Multiple Doses of AzacitidineDay 1 and Day 5: predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-doseThe effect of renal impairment on azacitidine pharmacokinetics was analyzed by comparing PK parameters obtained on Days 1 and 5 from participants with severe renal impairment and those with normal renal function. Area under the plasma concentration-time curve from time 0 to 8 hours post-dose (AUC0-8) of azacitidine following a single dose (Day 1) and multiple doses (Day 5) was calculated by the linear trapezoidal rule.
Area Under the Plasma Concentration-time Curve From Time 0 to the Last Quantifiable Time Point After Single and Multiple Doses of AzacitidineDay 1 and Day 5: predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-doseThe area under the plasma concentration-time curve from time zero to the last quantifiable time point (AUC0-t) of azacitidine following a single dose (Day 1) and multiple doses (Day 5) was calculated by the linear trapezoidal rule for participants with normal renal function and for participants with severe renal impairment.
Area Under the Plasma Concentration-time Curve From Time 0 to Infinity After Single and Multiple Doses of AzacitidineDay 1 and Day 5: predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-doseThe area under the plasma concentration-time curve from time zero to infinity (AUC0-inf) for azacitidine, after a single dose (Day 1) and multiple doses (Day 5), calculated by the linear trapezoidal rule and extrapolated to infinity according to the following equation: AUC0-inf = AUC0-t + (Ct/ke), where Ct is the last quantifiable concentration and ke = elimination rate constant.
Maximum Plasma Concentration of Azacitidine (Cmax) After Single and Multiple Doses of AzacitidineDay 1 and Day 5: predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-doseThe maximum observed plasma concentration of azacitidine after a single dose (Day 1) or multiple doses (Day 5) for participants with normal renal function and for participants with severe renal impairment.
Time to Maximum Plasma Concentration of Azacitidine (Tmax) After Single and Multiple Doses of AzacitidineDay 1 and Day 5: predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-doseThe time to first maximum observed plasma concentration of azacitidine after a single dose (Day 1) or multiple doses (Day 5) for participants with normal renal function and severe renal impairment.
Terminal Phase Half-life of Azacitidine (t½) After Single and Multiple Doses of AzacitidineDay 1 and Day 5: predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-doseThe terminal phase half-life of azacitidine after a single dose (Day 1) or multiple doses (Day 5) for participants with normal renal function and severe renal impairment, calculated according to the following equation: t½ = 0.693/λz, where λz is the terminal phase rate constant.
Apparent Total Clearance of Azacitidine (CL/F) After Single and Multiple Doses of AzacitidineDay 1 and Day 5: predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-doseThe apparent total clearance of azacitidine after a single dose (Day 1) and multiple doses (Day 5) for participants with normal renal function and severe renal impairment, calculated as Dose/AUC0-inf.
Apparent Volume of Distribution of Azacitidine (Vz/F) After Single and Multiple Doses of AzacitidineDay 1 and Day 5: predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-doseThe apparent volume of distribution of azacitidine after a single dose (Day 1) and multiple doses (Day 5) for participants with normal renal function and severe renal impairment, calculated according to the equation: Vz/F = Apparent total clearance (CL/F) / terminal phase rate constant (λz).
Number of Participants With Adverse Events (AEs)Initial treatment phase: Days 1-11 for participants who received a single dose; Days 1-29 for participants who received multiple doses. Extension treatment period: From the date of first dose until 28 days after the date of last dose (up to 7 months).A serious adverse event is one that at any dose of the study drug or at any time during the period of observation: * Results in death; * Is life threatening; * Requires inpatient hospitalization or prolongation of existing hospitalization; * Results in persistent or significant disability/incapacity; * Is a congenital anomaly/birth defect; * Is medically important. The Investigator assessed each AE for potential causal relationship between the event and study drug. The intensity of adverse changes in physical signs or symptoms was graded from 1 to 5 according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) Version 3, and according to the following: Mild (Grade 1), Moderate (Grade 2), Severe (Grade 3), Life threatening (Grade 4), or Death (Grade 5).

Countries

United States

Participant flow

Participants by arm

ArmCount
Azacitidine 25 mg/m^2
Participants with normal renal function (defined as creatinine clearance \> 80 mL/min/1.73m\^2) received a single subcutaneous dose of azacitidine 25 mg/m\^2 on Day 1.
5
Azacitidine 50 mg/m^2
Participants with normal renal function received a single subcutaneous dose of azacitidine 50 mg/m\^2 on Day 1.
5
Azacitidine 75 mg/m^2
Participants with normal renal function received subcutaneous doses of azacitidine 75 mg/m\^2 on Days 1 to 5.
6
Azacitidine 100 mg/m^2
Participants with normal renal function received a single subcutaneous dose of azacitidine 100 mg/m\^2 on Day 1.
5
Severe RI: Azacitidine 75 mg/m^2
Participants with severe renal impairment (RI; defined as creatinine clearance \< 30 mL/min/1.73 m\^2) received subcutaneous doses of azacitidine 75 mg/m\^2 on Days 1 to 5.
6
Extension Phase: Normal RF
Participants with normal renal function (RF) received up to 6 cycles of treatment with 75 mg/m\^2 azacitidine daily on Days 1-7 of each 28-day cycle.
14
Extension Phase: Severe RI
Participants with severe renal impairment (RI) received up to 6 cycles of treatment with 75 mg/m\^2 azacitidine daily on Days 1-7 of each 28-day cycle.
4
Total45

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006
Extension PhaseAdverse Event0000021
Extension PhaseDeath0000011
Extension PhaseNo Longer Receiving Clinical Benefit0000060
Extension PhasePhysician Decision0000011
Extension PhaseWithdrawal by Subject0000020
Initial Treatment PhaseAdverse Event0000100
Initial Treatment PhaseLost to Follow-up0000100
Initial Treatment PhasePhysician Decision0000100
Initial Treatment PhaseProtocol Violation0001000
Initial Treatment PhaseSponsor Request0010000

Baseline characteristics

CharacteristicTotalAzacitidine 25 mg/m^2Azacitidine 50 mg/m^2Azacitidine 75 mg/m^2Azacitidine 100 mg/m^2Severe RI: Azacitidine 75 mg/m^2Extension Phase: Normal RFExtension Phase: Severe RI
Age, Continuous
Extension Treatment Period
62.4 years
STANDARD_DEVIATION 10.15
NA yearsNA yearsNA yearsNA yearsNA years60.6 years
STANDARD_DEVIATION 9.52
68.8 years
STANDARD_DEVIATION 11
Age, Continuous
Initial Treatment Period
63.5 years
STANDARD_DEVIATION 12.32
67.6 years
STANDARD_DEVIATION 3.78
64.6 years
STANDARD_DEVIATION 9.63
53.5 years
STANDARD_DEVIATION 10.19
57.0 years
STANDARD_DEVIATION 12.02
74.5 years
STANDARD_DEVIATION 12.58
NA yearsNA years
Body Surface Area (BSA)
Extension Period
1.9 m^2
STANDARD_DEVIATION 0.31
NA m^2NA m^2NA m^2NA m^2NA m^21.9 m^2
STANDARD_DEVIATION 0.35
1.9 m^2
STANDARD_DEVIATION 0.06
Body Surface Area (BSA)
Initial Treatment Period
1.9 m^2
STANDARD_DEVIATION 0.27
2.0 m^2
STANDARD_DEVIATION 0.2
1.9 m^2
STANDARD_DEVIATION 0.28
1.9 m^2
STANDARD_DEVIATION 0.42
1.6 m^2
STANDARD_DEVIATION 0.15
1.8 m^2
STANDARD_DEVIATION 0.15
NA m^2NA m^2
Cancer Diagnosis: Extension Phase
Chronic myelomonocytic leukemia
0 participants0 participants0 participants0 participants0 participants0 participants0 participants0 participants
Cancer Diagnosis: Extension Phase
Multiple myeloma
0 participants0 participants0 participants0 participants0 participants0 participants0 participants0 participants
Cancer Diagnosis: Extension Phase
Myelodysplastic syndrome-RA
1 participants0 participants0 participants0 participants0 participants0 participants0 participants1 participants
Cancer Diagnosis: Extension Phase
Myelodysplastic syndrome-RAEB-T
1 participants0 participants0 participants0 participants0 participants0 participants1 participants0 participants
Cancer Diagnosis: Extension Phase
Myelodysplastic syndrome-RARS
1 participants0 participants0 participants0 participants0 participants0 participants1 participants0 participants
Cancer Diagnosis: Extension Phase
Solid tumor
15 participants0 participants0 participants0 participants0 participants0 participants12 participants3 participants
Cancer Diagnosis: Initial Treatment Phase
Chronic myelomonocytic leukemia
1 participants0 participants0 participants0 participants0 participants1 participants0 participants0 participants
Cancer Diagnosis: Initial Treatment Phase
Multiple myeloma
1 participants1 participants0 participants0 participants0 participants0 participants0 participants0 participants
Cancer Diagnosis: Initial Treatment Phase
Myelodysplastic syndrome-RA
2 participants0 participants1 participants0 participants0 participants1 participants0 participants0 participants
Cancer Diagnosis: Initial Treatment Phase
Myelodysplastic syndrome-RAEB-T
2 participants1 participants1 participants0 participants0 participants0 participants0 participants0 participants
Cancer Diagnosis: Initial Treatment Phase
Myelodysplastic syndrome-RARS
1 participants0 participants0 participants1 participants0 participants0 participants0 participants0 participants
Cancer Diagnosis: Initial Treatment Phase
Solid tumor
20 participants3 participants3 participants5 participants5 participants4 participants0 participants0 participants
Eastern Cooperative Oncology Group (ECOG) Performance Status: Extension Phase
0
3 participants0 participants0 participants0 participants0 participants0 participants2 participants1 participants
Eastern Cooperative Oncology Group (ECOG) Performance Status: Extension Phase
1
14 participants0 participants0 participants0 participants0 participants0 participants11 participants3 participants
Eastern Cooperative Oncology Group (ECOG) Performance Status: Extension Phase
2
1 participants0 participants0 participants0 participants0 participants0 participants1 participants0 participants
Eastern Cooperative Oncology Group (ECOG) Performance Status: Initial Treatment Phase
0
7 participants2 participants2 participants1 participants0 participants2 participants0 participants0 participants
Eastern Cooperative Oncology Group (ECOG) Performance Status: Initial Treatment Phase
1
18 participants3 participants3 participants4 participants5 participants3 participants0 participants0 participants
Eastern Cooperative Oncology Group (ECOG) Performance Status: Initial Treatment Phase
2
2 participants0 participants0 participants1 participants0 participants1 participants0 participants0 participants
Gender of Extension Period Participants
Female
10 participants0 participants0 participants0 participants0 participants0 participants8 participants2 participants
Gender of Extension Period Participants
Male
8 participants0 participants0 participants0 participants0 participants0 participants6 participants2 participants
Race/Ethnicity, Customized
Black
8 participants1 participants2 participants1 participants2 participants2 participants0 participants0 participants
Race/Ethnicity, Customized
White
19 participants4 participants3 participants5 participants3 participants4 participants0 participants0 participants
Race: Extension Phase
Black
5 participants0 participants0 participants0 participants0 participants0 participants5 participants0 participants
Race: Extension Phase
White
13 participants0 participants0 participants0 participants0 participants0 participants9 participants4 participants
Region of Enrollment
United States
27 participants5 participants5 participants6 participants5 participants6 participants0 participants0 participants
Sex/Gender, Customized
Female
16 participants3 participants3 participants3 participants4 participants3 participants0 participants0 participants
Sex/Gender, Customized
Male
11 participants2 participants2 participants3 participants1 participants3 participants0 participants0 participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —— / —— / —
other
Total, other adverse events
4 / 53 / 55 / 65 / 56 / 69 / 144 / 4
serious
Total, serious adverse events
0 / 50 / 54 / 61 / 51 / 68 / 143 / 4

Outcome results

Primary

Apparent Total Clearance of Azacitidine (CL/F)

The apparent total clearance of azacitidine after a single dose on Day 1, calculated as Dose/AUC0-inf.

Time frame: Day 1 at predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-dose

Population: Pharmacokinetic Population, consisting of all participants with evaluable plasma or urine concentration data for azacitidine. This analysis was performed for participants with normal renal function only.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Azacitidine 25 mg/m^2Apparent Total Clearance of Azacitidine (CL/F)104.58 liters/hourGeometric Coefficient of Variation 25
Azacitidine 50 mg/m^2Apparent Total Clearance of Azacitidine (CL/F)105.76 liters/hourGeometric Coefficient of Variation 17.03
Azacitidine 75 mg/m^2Apparent Total Clearance of Azacitidine (CL/F)151.55 liters/hourGeometric Coefficient of Variation 30.88
Azacitidine 100 mg/m^2Apparent Total Clearance of Azacitidine (CL/F)106.00 liters/hourGeometric Coefficient of Variation 25.64
Comparison: Geometric means, ratio and 90% CI of ratio of geometric means are from one way analysis of variance model on the nature log-transformed CL/F obtained on Day 1. Azacitidine 25 mg/m\^2 is the reference group for comparisons.90% CI: [71.2, 143.6]
Comparison: Geometric means, ratio and 90% CI of ratio of geometric means are from one way analysis of variance model on the nature log-transformed CL/F obtained on Day 1. Azacitidine 25 mg/m\^2 is the reference group for comparisons.90% CI: [103.6, 202.7]
Comparison: Geometric means, ratio and 90% CI of ratio of geometric means are from one way analysis of variance model on the nature log-transformed CL/F obtained on Day 1. Azacitidine 25 mg/m\^2 is the reference group for comparisons.90% CI: [71.4, 143.9]
Primary

Apparent Total Clearance of Azacitidine (CL/F) After Single and Multiple Doses of Azacitidine

The apparent total clearance of azacitidine after a single dose (Day 1) and multiple doses (Day 5) for participants with normal renal function and severe renal impairment, calculated as Dose/AUC0-inf.

Time frame: Day 1 and Day 5: predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-dose

Population: Pharmacokinetic Population, consisting of all participants with evaluable plasma or urine concentration data for azacitidine. This analysis was performed for participants in the 2 treatment groups who received azacitidine treatment for 5 days.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Azacitidine 25 mg/m^2Apparent Total Clearance of Azacitidine (CL/F) After Single and Multiple Doses of AzacitidineDay 5166.95 liters/hourGeometric Coefficient of Variation 27.59
Azacitidine 25 mg/m^2Apparent Total Clearance of Azacitidine (CL/F) After Single and Multiple Doses of AzacitidineDay 1151.55 liters/hourGeometric Coefficient of Variation 30.88
Azacitidine 50 mg/m^2Apparent Total Clearance of Azacitidine (CL/F) After Single and Multiple Doses of AzacitidineDay 185.76 liters/hourGeometric Coefficient of Variation 68.83
Azacitidine 50 mg/m^2Apparent Total Clearance of Azacitidine (CL/F) After Single and Multiple Doses of AzacitidineDay 5111.55 liters/hourGeometric Coefficient of Variation 51.75
Primary

Apparent Volume of Distribution of Azacitidine (Vz/F)

The apparent volume of distribution of azacitidine after a single dose on Day 1, calculated according to the equation: Vz/F = Apparent total clearance (CL/F) / terminal phase rate constant (λz)

Time frame: Day 1 at predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-dose

Population: Pharmacokinetic Population, consisting of all participants with evaluable plasma or urine concentration data for azacitidine. This analysis was performed for participants with normal renal function only.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Azacitidine 25 mg/m^2Apparent Volume of Distribution of Azacitidine (Vz/F)208.69 litersGeometric Coefficient of Variation 45.57
Azacitidine 50 mg/m^2Apparent Volume of Distribution of Azacitidine (Vz/F)96.74 litersGeometric Coefficient of Variation 36.75
Azacitidine 75 mg/m^2Apparent Volume of Distribution of Azacitidine (Vz/F)259.44 litersGeometric Coefficient of Variation 121.71
Azacitidine 100 mg/m^2Apparent Volume of Distribution of Azacitidine (Vz/F)456.69 litersGeometric Coefficient of Variation 99.41
Primary

Apparent Volume of Distribution of Azacitidine (Vz/F) After Single and Multiple Doses of Azacitidine

The apparent volume of distribution of azacitidine after a single dose (Day 1) and multiple doses (Day 5) for participants with normal renal function and severe renal impairment, calculated according to the equation: Vz/F = Apparent total clearance (CL/F) / terminal phase rate constant (λz).

Time frame: Day 1 and Day 5: predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-dose

Population: Pharmacokinetic Population, consisting of all participants with evaluable plasma or urine concentration data for azacitidine. This analysis was performed for participants in the 2 treatment groups who received azacitidine treatment for 5 days.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Azacitidine 25 mg/m^2Apparent Volume of Distribution of Azacitidine (Vz/F) After Single and Multiple Doses of AzacitidineDay 5248.57 litersGeometric Coefficient of Variation 115.1
Azacitidine 25 mg/m^2Apparent Volume of Distribution of Azacitidine (Vz/F) After Single and Multiple Doses of AzacitidineDay 1259.44 litersGeometric Coefficient of Variation 121.71
Azacitidine 50 mg/m^2Apparent Volume of Distribution of Azacitidine (Vz/F) After Single and Multiple Doses of AzacitidineDay 1120.47 litersGeometric Coefficient of Variation 120.45
Azacitidine 50 mg/m^2Apparent Volume of Distribution of Azacitidine (Vz/F) After Single and Multiple Doses of AzacitidineDay 5184.54 litersGeometric Coefficient of Variation 104.34
Primary

Area Under the Plasma Concentration-time Curve From Time 0 to 8 Hours Post-dose

Area under the plasma concentration-time curve from time 0 to 8 hours post-dose (AUC0-8) of azacitidine following a single dose of azacitidine on Day 1, calculated by the linear trapezoidal rule.

Time frame: Day 1 at predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-dose

Population: Pharmacokinetic (PK) Population, consisting of all participants with evaluable plasma or urine concentration data for azacitidine. This analysis was performed for participants with normal renal function only.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Azacitidine 25 mg/m^2Area Under the Plasma Concentration-time Curve From Time 0 to 8 Hours Post-dose455.86 ng*hr/mLGeometric Coefficient of Variation 26.04
Azacitidine 50 mg/m^2Area Under the Plasma Concentration-time Curve From Time 0 to 8 Hours Post-dose897.43 ng*hr/mLGeometric Coefficient of Variation 31
Azacitidine 75 mg/m^2Area Under the Plasma Concentration-time Curve From Time 0 to 8 Hours Post-dose921.87 ng*hr/mLGeometric Coefficient of Variation 39.215
Azacitidine 100 mg/m^2Area Under the Plasma Concentration-time Curve From Time 0 to 8 Hours Post-dose1502.86 ng*hr/mLGeometric Coefficient of Variation 25.57
Primary

Area Under the Plasma Concentration-time Curve From Time 0 to 8 Hours Post-dose After Single and Multiple Doses of Azacitidine

The effect of renal impairment on azacitidine pharmacokinetics was analyzed by comparing PK parameters obtained on Days 1 and 5 from participants with severe renal impairment and those with normal renal function. Area under the plasma concentration-time curve from time 0 to 8 hours post-dose (AUC0-8) of azacitidine following a single dose (Day 1) and multiple doses (Day 5) was calculated by the linear trapezoidal rule.

Time frame: Day 1 and Day 5: predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-dose

Population: Pharmacokinetic Population, consisting of all participants with evaluable plasma or urine concentration data for azacitidine. This analysis was performed for participants in the 2 treatment groups who received azacitidine treatment for 5 days.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Azacitidine 25 mg/m^2Area Under the Plasma Concentration-time Curve From Time 0 to 8 Hours Post-dose After Single and Multiple Doses of AzacitidineDay 5843.03 ng*hr/mLGeometric Coefficient of Variation 12
Azacitidine 25 mg/m^2Area Under the Plasma Concentration-time Curve From Time 0 to 8 Hours Post-dose After Single and Multiple Doses of AzacitidineDay 1921.87 ng*hr/mLGeometric Coefficient of Variation 39.15
Azacitidine 50 mg/m^2Area Under the Plasma Concentration-time Curve From Time 0 to 8 Hours Post-dose After Single and Multiple Doses of AzacitidineDay 11558.32 ng*hr/mLGeometric Coefficient of Variation 64.95
Azacitidine 50 mg/m^2Area Under the Plasma Concentration-time Curve From Time 0 to 8 Hours Post-dose After Single and Multiple Doses of AzacitidineDay 51183.61 ng*hr/mLGeometric Coefficient of Variation 51.92
Primary

Area Under the Plasma Concentration-time Curve From Time 0 to Infinity After Single and Multiple Doses of Azacitidine

The area under the plasma concentration-time curve from time zero to infinity (AUC0-inf) for azacitidine, after a single dose (Day 1) and multiple doses (Day 5), calculated by the linear trapezoidal rule and extrapolated to infinity according to the following equation: AUC0-inf = AUC0-t + (Ct/ke), where Ct is the last quantifiable concentration and ke = elimination rate constant.

Time frame: Day 1 and Day 5: predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-dose

Population: Pharmacokinetic Population, consisting of all participants with evaluable plasma or urine concentration data for azacitidine. This analysis was performed for participants in the 2 treatment groups who received azacitidine treatment for 5 days.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Azacitidine 25 mg/m^2Area Under the Plasma Concentration-time Curve From Time 0 to Infinity After Single and Multiple Doses of AzacitidineDay 1946.22 ng*hr/mLGeometric Coefficient of Variation 39.05
Azacitidine 25 mg/m^2Area Under the Plasma Concentration-time Curve From Time 0 to Infinity After Single and Multiple Doses of AzacitidineDay 5857.64 ng*hr/mLGeometric Coefficient of Variation 9.94
Azacitidine 50 mg/m^2Area Under the Plasma Concentration-time Curve From Time 0 to Infinity After Single and Multiple Doses of AzacitidineDay 11573.82 ng*hr/mLGeometric Coefficient of Variation 63.46
Azacitidine 50 mg/m^2Area Under the Plasma Concentration-time Curve From Time 0 to Infinity After Single and Multiple Doses of AzacitidineDay 51210.92 ng*hr/mLGeometric Coefficient of Variation 49.07
Comparison: Comparison of AUC0-inf after a single dose (Day 1) in participants with normal renal function and participants with severe renal impairment.~Geometric means, ratio and 90% CI of ratio of geometric means are from an analysis of variance model with renal function group (normal and severe), visit (Day 1 and Day 5), renal function group by visit interaction as fixed effect, and patient nested within renal function group as a random effect on the nature log-transformed pharmacokinetic parameters.90% CI: [108.6, 254.6]
Comparison: Comparison of AUC0-inf after multiple doses (Day 5) in participants with normal renal function and participants with severe renal impairment.~Geometric means, ratio and 90% CI of ratio of geometric means are from an analysis of variance model with renal function group (normal and severe), visit (Day 1 and Day 5), renal function group by visit interaction as fixed effect, and patient nested within renal function group as a random effect on the nature log-transformed pharmacokinetic parameters.90% CI: [92.2, 216.2]
Primary

Area Under the Plasma Concentration-time Curve From Time 0 to the Last Quantifiable Time Point After Single and Multiple Doses of Azacitidine

The area under the plasma concentration-time curve from time zero to the last quantifiable time point (AUC0-t) of azacitidine following a single dose (Day 1) and multiple doses (Day 5) was calculated by the linear trapezoidal rule for participants with normal renal function and for participants with severe renal impairment.

Time frame: Day 1 and Day 5: predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-dose

Population: Pharmacokinetic Population, consisting of all participants with evaluable plasma or urine concentration data for azacitidine. This analysis was performed for participants in the 2 treatment groups who received azacitidine treatment for 5 days.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Azacitidine 25 mg/m^2Area Under the Plasma Concentration-time Curve From Time 0 to the Last Quantifiable Time Point After Single and Multiple Doses of AzacitidineDay 1920.76 ng*hr/mLGeometric Coefficient of Variation 39.2
Azacitidine 25 mg/m^2Area Under the Plasma Concentration-time Curve From Time 0 to the Last Quantifiable Time Point After Single and Multiple Doses of AzacitidineDay 5841.62 ng*hr/mLGeometric Coefficient of Variation 11.83
Azacitidine 50 mg/m^2Area Under the Plasma Concentration-time Curve From Time 0 to the Last Quantifiable Time Point After Single and Multiple Doses of AzacitidineDay 11558.72 ng*hr/mLGeometric Coefficient of Variation 65.02
Azacitidine 50 mg/m^2Area Under the Plasma Concentration-time Curve From Time 0 to the Last Quantifiable Time Point After Single and Multiple Doses of AzacitidineDay 51181.83 ng*hr/mLGeometric Coefficient of Variation 51.98
Comparison: Comparison of AUC0-t after a single dose (Day 1) in participants with normal renal function and participants with severe renal impairment.~Geometric means, ratio and 90% CI of ratio of geometric means are from an analysis of variance model with renal function group (normal and severe), visit (Day 1 and Day 5), renal function group by visit interaction as fixed effect, and patient nested within renal function group as a random effect on the nature log-transformed pharmacokinetic parameters90% CI: [109.2, 262.5]
Comparison: Comparison of AUC0-t after multiple doses (Day 5) in participants with normal renal function and participants with severe renal impairment.~Geometric means, ratio and 90% CI of ratio of geometric means are from an analysis of variance model with renal function group (normal and severe), visit (Day 1 and Day 5), renal function group by visit interaction as fixed effect, and patient nested within renal function group as a random effect on the nature log-transformed pharmacokinetic parameters.90% CI: [90.6, 217.7]
Primary

Area Under the Plasma Concentration-time Curve From Time Zero to Infinity

The area under the plasma concentration-time curve from time zero to infinity (AUC0-inf) for azacitidine after a single dose, calculated by the linear trapezoidal rule and extrapolated to infinity according to the following equation: AUC0-inf = AUC0-t + (Ct/ke), where Ct is the last quantifiable concentration and ke = elimination rate constant.

Time frame: Day 1 at predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-dose

Population: Pharmacokinetic Population, consisting of all participants with evaluable plasma or urine concentration data for azacitidine. This analysis was performed for participants with normal renal function only.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Azacitidine 25 mg/m^2Area Under the Plasma Concentration-time Curve From Time Zero to Infinity460.47 ng*hr/mLGeometric Coefficient of Variation 25.79
Azacitidine 50 mg/m^2Area Under the Plasma Concentration-time Curve From Time Zero to Infinity897.42 ng*hr/mLGeometric Coefficient of Variation 30.93
Azacitidine 75 mg/m^2Area Under the Plasma Concentration-time Curve From Time Zero to Infinity945.50 ng*hr/mLGeometric Coefficient of Variation 39.05
Azacitidine 100 mg/m^2Area Under the Plasma Concentration-time Curve From Time Zero to Infinity1533.37 ng*hr/mLGeometric Coefficient of Variation 23.96
Comparison: Geometric means, ratio and 90% CI of ratio of geometric means are from one way analysis of variance models on the nature log-transformed dose-normalized AUC0-inf, obtained on Day 1. Azacitidine 25 mg/m\^2 is the reference group for comparisons.90% CI: [63.8, 148.8]
Comparison: Geometric means, ratio and 90% CI of ratio of geometric means are from one way analysis of variance models on the nature log-transformed dose-normalized AUC0-inf, obtained on Day 1. Azacitidine 25 mg/m\^2 is the reference group for comparisons.90% CI: [45.7, 102.7]
Comparison: Geometric means, ratio and 90% CI of ratio of geometric means are from one way analysis of variance models on the nature log-transformed dose-normalized AUC0-inf, obtained on Day 1. Azacitidine 25 mg/m\^2 is the reference group for comparisons.90% CI: [54.5, 127.1]
Primary

Area Under the Plasma Concentration-time Curve From Time Zero to the Last Quantifiable Time Point

Area under the plasma concentration-time curve from time zero to the last quantifiable time point (AUC0-t) of azacitidine following a single dose of azacitidine on Day 1, calculated by the linear trapezoidal rule.

Time frame: Day 1 at predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-dose

Population: Pharmacokinetic Population, consisting of all participants with evaluable plasma or urine concentration data for azacitidine. This analysis was performed for participants with normal renal function only.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Azacitidine 25 mg/m^2Area Under the Plasma Concentration-time Curve From Time Zero to the Last Quantifiable Time Point454.80 ng*hr/mLGeometric Coefficient of Variation 26.22
Azacitidine 50 mg/m^2Area Under the Plasma Concentration-time Curve From Time Zero to the Last Quantifiable Time Point895.38 ng*hr/mLGeometric Coefficient of Variation 31.2
Azacitidine 75 mg/m^2Area Under the Plasma Concentration-time Curve From Time Zero to the Last Quantifiable Time Point920.76 ng*hr/mLGeometric Coefficient of Variation 39.2
Azacitidine 100 mg/m^2Area Under the Plasma Concentration-time Curve From Time Zero to the Last Quantifiable Time Point1505.16 ng*hr/mLGeometric Coefficient of Variation 25.57
Comparison: Geometric means, ratio and 90% confidence interval (CI) of ratio of geometric means are from one way analysis of variance models on the nature log-transformed dose-normalized AUC0-t, obtained on Day 1. Azacitidine 25 mg/m\^2 is the reference group for comparisons90% CI: [64, 151.3]
Comparison: Geometric means, ratio and 90% CI of ratio of geometric means are from one way analysis of variance models on the nature log-transformed dose-normalized AUC0-t, obtained on Day 1. Azacitidine 25 mg/m\^2 is the reference group for comparisons90% CI: [44.7, 101.8]
Comparison: Geometric means, ratio and 90% CI of ratio of geometric means are from one way analysis of variance models on the nature log-transformed dose-normalized AUC0-t, obtained on Day 1. Azacitidine 25 mg/m\^2 is the reference group for comparisons90% CI: [53.8, 127.2]
Primary

Maximum Plasma Concentration of Azacitidine (Cmax)

The maximum observed plasma concentration of azacitidine after a single dose on Day 1.

Time frame: Day 1 at predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-dose

Population: Pharmacokinetic Population, consisting of all participants with evaluable plasma or urine concentration data for azacitidine. This analysis was performed for participants with normal renal function only.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Azacitidine 25 mg/m^2Maximum Plasma Concentration of Azacitidine (Cmax)293.38 ng/mLGeometric Coefficient of Variation 34.11
Azacitidine 50 mg/m^2Maximum Plasma Concentration of Azacitidine (Cmax)749.04 ng/mLGeometric Coefficient of Variation 61.03
Azacitidine 75 mg/m^2Maximum Plasma Concentration of Azacitidine (Cmax)745.50 ng/mLGeometric Coefficient of Variation 57.9
Azacitidine 100 mg/m^2Maximum Plasma Concentration of Azacitidine (Cmax)1261.96 ng/mLGeometric Coefficient of Variation 39.19
Comparison: Geometric means, ratio and 90% CI of ratio of geometric means are from one way analysis of variance models on the nature log-transformed dose-normalized Cmax, obtained on Day 1. Azacitidine 25 mg/m\^2 is the reference group for comparisons90% CI: [66.3, 245.7]
Comparison: Geometric means, ratio and 90% CI of ratio of geometric means are from one way analysis of variance models on the nature log-transformed dose-normalized Cmax, obtained on Day 1. Azacitidine 25 mg/m\^2 is the reference group for comparisons90% CI: [45.3, 158.5]
Comparison: Geometric means, ratio and 90% CI of ratio of geometric means are from one way analysis of variance models on the nature log-transformed dose-normalized Cmax, obtained on Day 1. Azacitidine 25 mg/m\^2 is the reference group for comparisons90% CI: [55.9, 207]
Primary

Maximum Plasma Concentration of Azacitidine (Cmax) After Single and Multiple Doses of Azacitidine

The maximum observed plasma concentration of azacitidine after a single dose (Day 1) or multiple doses (Day 5) for participants with normal renal function and for participants with severe renal impairment.

Time frame: Day 1 and Day 5: predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-dose

Population: Pharmacokinetic Population, consisting of all participants with evaluable plasma or urine concentration data for azacitidine. This analysis was performed for participants in the 2 treatment groups who received azacitidine treatment for 5 days.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Azacitidine 25 mg/m^2Maximum Plasma Concentration of Azacitidine (Cmax) After Single and Multiple Doses of AzacitidineDay 1745.50 ng/mLGeometric Coefficient of Variation 57.9
Azacitidine 25 mg/m^2Maximum Plasma Concentration of Azacitidine (Cmax) After Single and Multiple Doses of AzacitidineDay 5632.56 ng/mLGeometric Coefficient of Variation 45.86
Azacitidine 50 mg/m^2Maximum Plasma Concentration of Azacitidine (Cmax) After Single and Multiple Doses of AzacitidineDay 11056.66 ng/mLGeometric Coefficient of Variation 93.01
Azacitidine 50 mg/m^2Maximum Plasma Concentration of Azacitidine (Cmax) After Single and Multiple Doses of AzacitidineDay 5668.11 ng/mLGeometric Coefficient of Variation 91.64
Comparison: Comparison of Cmax after a single dose (Day 1) in participants with normal renal function and participants with severe renal impairment.~Geometric means, ratio and 90% CI of ratio of geometric means are from an analysis of variance model with renal function group (normal and severe), visit (Day 1 and Day 5), renal function group by visit interaction as fixed effect, and patient nested within renal function group as a random effect on the nature log-transformed pharmacokinetic parameters.90% CI: [73.2, 274.6]
Comparison: Comparison of Cmax after multiple doses (Day 5) in participants with normal renal function and participants with severe renal impairment.~Geometric means, ratio and 90% CI of ratio of geometric means are from an analysis of variance model with renal function group (normal and severe), visit (Day 1 and Day 5), renal function group by visit interaction as fixed effect, and patient nested within renal function group as a random effect on the nature log-transformed pharmacokinetic parameters.90% CI: [54.5, 204.6]
Primary

Number of Participants With Adverse Events (AEs)

A serious adverse event is one that at any dose of the study drug or at any time during the period of observation: * Results in death; * Is life threatening; * Requires inpatient hospitalization or prolongation of existing hospitalization; * Results in persistent or significant disability/incapacity; * Is a congenital anomaly/birth defect; * Is medically important. The Investigator assessed each AE for potential causal relationship between the event and study drug. The intensity of adverse changes in physical signs or symptoms was graded from 1 to 5 according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) Version 3, and according to the following: Mild (Grade 1), Moderate (Grade 2), Severe (Grade 3), Life threatening (Grade 4), or Death (Grade 5).

Time frame: Initial treatment phase: Days 1-11 for participants who received a single dose; Days 1-29 for participants who received multiple doses. Extension treatment period: From the date of first dose until 28 days after the date of last dose (up to 7 months).

Population: Safety population, all enrolled patients who received at least one dose of azacitidine and who had at least one post-treatment safety assessment.

ArmMeasureGroupValue (NUMBER)
Azacitidine 25 mg/m^2Number of Participants With Adverse Events (AEs)Any adverse event4 participants
Azacitidine 25 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to study drug interruption0 participants
Azacitidine 25 mg/m^2Number of Participants With Adverse Events (AEs)Serious adverse event related to study drug0 participants
Azacitidine 25 mg/m^2Number of Participants With Adverse Events (AEs)Death0 participants
Azacitidine 25 mg/m^2Number of Participants With Adverse Events (AEs)Grade 3 or 4 adverse event0 participants
Azacitidine 25 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to other action taken2 participants
Azacitidine 25 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to a dose reduction0 participants
Azacitidine 25 mg/m^2Number of Participants With Adverse Events (AEs)Serious adverse event0 participants
Azacitidine 25 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to study drug discontinuation0 participants
Azacitidine 25 mg/m^2Number of Participants With Adverse Events (AEs)Adverse event related to study drug2 participants
Azacitidine 50 mg/m^2Number of Participants With Adverse Events (AEs)Serious adverse event0 participants
Azacitidine 50 mg/m^2Number of Participants With Adverse Events (AEs)Any adverse event3 participants
Azacitidine 50 mg/m^2Number of Participants With Adverse Events (AEs)Adverse event related to study drug3 participants
Azacitidine 50 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to other action taken1 participants
Azacitidine 50 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to study drug discontinuation0 participants
Azacitidine 50 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to study drug interruption0 participants
Azacitidine 50 mg/m^2Number of Participants With Adverse Events (AEs)Serious adverse event related to study drug0 participants
Azacitidine 50 mg/m^2Number of Participants With Adverse Events (AEs)Grade 3 or 4 adverse event0 participants
Azacitidine 50 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to a dose reduction0 participants
Azacitidine 50 mg/m^2Number of Participants With Adverse Events (AEs)Death0 participants
Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to other action taken6 participants
Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)Serious adverse event related to study drug0 participants
Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)Serious adverse event4 participants
Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)Grade 3 or 4 adverse event4 participants
Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to study drug discontinuation0 participants
Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)Death0 participants
Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)Adverse event related to study drug4 participants
Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to study drug interruption0 participants
Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)Any adverse event6 participants
Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to a dose reduction0 participants
Azacitidine 100 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to study drug discontinuation0 participants
Azacitidine 100 mg/m^2Number of Participants With Adverse Events (AEs)Death0 participants
Azacitidine 100 mg/m^2Number of Participants With Adverse Events (AEs)Any adverse event5 participants
Azacitidine 100 mg/m^2Number of Participants With Adverse Events (AEs)Grade 3 or 4 adverse event1 participants
Azacitidine 100 mg/m^2Number of Participants With Adverse Events (AEs)Serious adverse event1 participants
Azacitidine 100 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to other action taken4 participants
Azacitidine 100 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to a dose reduction0 participants
Azacitidine 100 mg/m^2Number of Participants With Adverse Events (AEs)Serious adverse event related to study drug1 participants
Azacitidine 100 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to study drug interruption0 participants
Azacitidine 100 mg/m^2Number of Participants With Adverse Events (AEs)Adverse event related to study drug4 participants
Severe RI: Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)Serious adverse event related to study drug0 participants
Severe RI: Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)Serious adverse event1 participants
Severe RI: Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)Grade 3 or 4 adverse event3 participants
Severe RI: Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to study drug discontinuation0 participants
Severe RI: Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to study drug interruption0 participants
Severe RI: Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to a dose reduction0 participants
Severe RI: Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)Any adverse event6 participants
Severe RI: Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)Adverse event related to study drug3 participants
Severe RI: Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)Death0 participants
Severe RI: Azacitidine 75 mg/m^2Number of Participants With Adverse Events (AEs)AE leading to other action taken5 participants
Extension Phase: Normal RFNumber of Participants With Adverse Events (AEs)Adverse event related to study drug8 participants
Extension Phase: Normal RFNumber of Participants With Adverse Events (AEs)AE leading to study drug discontinuation4 participants
Extension Phase: Normal RFNumber of Participants With Adverse Events (AEs)AE leading to a dose reduction1 participants
Extension Phase: Normal RFNumber of Participants With Adverse Events (AEs)AE leading to study drug interruption4 participants
Extension Phase: Normal RFNumber of Participants With Adverse Events (AEs)Death1 participants
Extension Phase: Normal RFNumber of Participants With Adverse Events (AEs)AE leading to other action taken10 participants
Extension Phase: Normal RFNumber of Participants With Adverse Events (AEs)Grade 3 or 4 adverse event10 participants
Extension Phase: Normal RFNumber of Participants With Adverse Events (AEs)Serious adverse event related to study drug1 participants
Extension Phase: Normal RFNumber of Participants With Adverse Events (AEs)Any adverse event14 participants
Extension Phase: Normal RFNumber of Participants With Adverse Events (AEs)Serious adverse event8 participants
Extension Phase: Severe RINumber of Participants With Adverse Events (AEs)Any adverse event4 participants
Extension Phase: Severe RINumber of Participants With Adverse Events (AEs)AE leading to study drug discontinuation2 participants
Extension Phase: Severe RINumber of Participants With Adverse Events (AEs)Serious adverse event3 participants
Extension Phase: Severe RINumber of Participants With Adverse Events (AEs)Adverse event related to study drug2 participants
Extension Phase: Severe RINumber of Participants With Adverse Events (AEs)Grade 3 or 4 adverse event3 participants
Extension Phase: Severe RINumber of Participants With Adverse Events (AEs)Serious adverse event related to study drug1 participants
Extension Phase: Severe RINumber of Participants With Adverse Events (AEs)AE leading to other action taken3 participants
Extension Phase: Severe RINumber of Participants With Adverse Events (AEs)AE leading to a dose reduction0 participants
Extension Phase: Severe RINumber of Participants With Adverse Events (AEs)Death1 participants
Extension Phase: Severe RINumber of Participants With Adverse Events (AEs)AE leading to study drug interruption1 participants
Primary

Terminal Phase Half-life of Azacitidine (t½)

The terminal phase half-life of azacitidine after a single dose on Day 1, calculated according to the following equation: t½ = 0.693/λz, where λz is the terminal phase rate constant.

Time frame: Day 1 at predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-dose

Population: Pharmacokinetic Population, consisting of all participants with evaluable plasma or urine concentration data for azacitidine. This analysis was performed for participants with normal renal function only.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Azacitidine 25 mg/m^2Terminal Phase Half-life of Azacitidine (t½)1.38 hoursGeometric Coefficient of Variation 27.31
Azacitidine 50 mg/m^2Terminal Phase Half-life of Azacitidine (t½)0.63 hoursGeometric Coefficient of Variation 35.72
Azacitidine 75 mg/m^2Terminal Phase Half-life of Azacitidine (t½)1.19 hoursGeometric Coefficient of Variation 102.56
Azacitidine 100 mg/m^2Terminal Phase Half-life of Azacitidine (t½)1.03 hoursGeometric Coefficient of Variation 78.48
Primary

Terminal Phase Half-life of Azacitidine (t½) After Single and Multiple Doses of Azacitidine

The terminal phase half-life of azacitidine after a single dose (Day 1) or multiple doses (Day 5) for participants with normal renal function and severe renal impairment, calculated according to the following equation: t½ = 0.693/λz, where λz is the terminal phase rate constant.

Time frame: Day 1 and Day 5: predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-dose

Population: Pharmacokinetic Population, consisting of all participants with evaluable plasma or urine concentration data for azacitidine. This analysis was performed for participants in the 2 treatment groups who received azacitidine treatment for 5 days.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Azacitidine 25 mg/m^2Terminal Phase Half-life of Azacitidine (t½) After Single and Multiple Doses of AzacitidineDay 11.19 hoursGeometric Coefficient of Variation 102.56
Azacitidine 25 mg/m^2Terminal Phase Half-life of Azacitidine (t½) After Single and Multiple Doses of AzacitidineDay 51.03 hoursGeometric Coefficient of Variation 76.95
Azacitidine 50 mg/m^2Terminal Phase Half-life of Azacitidine (t½) After Single and Multiple Doses of AzacitidineDay 51.15 hoursGeometric Coefficient of Variation 53.86
Azacitidine 50 mg/m^2Terminal Phase Half-life of Azacitidine (t½) After Single and Multiple Doses of AzacitidineDay 10.97 hoursGeometric Coefficient of Variation 43.88
Primary

Time to Maximum Plasma Concentration of Azacitidine (Tmax)

The time to first maximum observed plasma concentration of azacitidine after a single dose on Day 1.

Time frame: Day 1 at predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-dose

Population: Pharmacokinetic Population, consisting of all participants with evaluable plasma or urine concentration data for azacitidine. This analysis was performed for participants with normal renal function only.

ArmMeasureValue (MEDIAN)
Azacitidine 25 mg/m^2Time to Maximum Plasma Concentration of Azacitidine (Tmax)0.25 hours
Azacitidine 50 mg/m^2Time to Maximum Plasma Concentration of Azacitidine (Tmax)0.25 hours
Azacitidine 75 mg/m^2Time to Maximum Plasma Concentration of Azacitidine (Tmax)0.25 hours
Azacitidine 100 mg/m^2Time to Maximum Plasma Concentration of Azacitidine (Tmax)0.27 hours
Primary

Time to Maximum Plasma Concentration of Azacitidine (Tmax) After Single and Multiple Doses of Azacitidine

The time to first maximum observed plasma concentration of azacitidine after a single dose (Day 1) or multiple doses (Day 5) for participants with normal renal function and severe renal impairment.

Time frame: Day 1 and Day 5: predose, 5, 15, 30, 45 minutes and 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, and 8 hours post-dose

Population: Pharmacokinetic Population, consisting of all participants with evaluable plasma or urine concentration data for azacitidine. This analysis was performed for participants in the 2 treatment groups who received azacitidine treatment for 5 days.

ArmMeasureGroupValue (MEDIAN)
Azacitidine 25 mg/m^2Time to Maximum Plasma Concentration of Azacitidine (Tmax) After Single and Multiple Doses of AzacitidineDay 10.25 hours
Azacitidine 25 mg/m^2Time to Maximum Plasma Concentration of Azacitidine (Tmax) After Single and Multiple Doses of AzacitidineDay 50.38 hours
Azacitidine 50 mg/m^2Time to Maximum Plasma Concentration of Azacitidine (Tmax) After Single and Multiple Doses of AzacitidineDay 10.50 hours
Azacitidine 50 mg/m^2Time to Maximum Plasma Concentration of Azacitidine (Tmax) After Single and Multiple Doses of AzacitidineDay 50.64 hours
Comparison: Comparison of Tmax after a single dose (Day 1) in participants with normal renal function and participants with severe renal impairment.p-value: 0.134290% CI: [0, 0.52]Wilcoxon (Mann-Whitney)
Comparison: Comparison of Tmax after multiple doses (Day 5) in participants with normal renal function and participants with severe renal impairment.p-value: 0.101790% CI: [0, 0.5]Wilcoxon (Mann-Whitney)

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026