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Pharmacokinetics of Efavirenz in HIV-1 Infected Subjects With Hepatic Impairment

Pharmacokinetics of Efavirenz During Treatment of HIV-1 Infected Subjects With Hepatic Impairment.

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00162097
Enrollment
21
Registered
2005-09-13
Start date
2004-11-30
Completion date
2008-03-31
Last updated
2010-09-14

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

Conditions

Hepatic Impairment, HIV Infections

Brief summary

The purpose of the study was to assess the steady-state pharmacokinetics (PK) of efavirenz (EFV) in human immunodeficiency virus type 1 (HIV-1) infected subjects on stable antiretroviral regimens containing EFV, and having selected degrees of hepatic impairment or normal hepatic function.

Interventions

DRUGefavirenz containing antiretroviral regimen

Capsule or Tablet, Oral, once daily for 2 days

Sponsors

Bristol-Myers Squibb
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* HIV-1 infection with or without Hepatitis B or C infection * Stable antiretroviral regimen containing efavirenz and nucleoside/nucleotide reverse transcriptase inhibitors (NRTI) for at least 1 month * Mild, moderate or severe hepatic impairment with hepatic cirrhosis

Exclusion criteria

* Acute flare of hepatitis * Positive pregnancy test for a female * Significant acute medical illness in past 2 months * Use of agents known to significantly affect liver metabolism * Change in medications to treat a chronic disease in the past 2 months

Design outcomes

Primary

MeasureTime frameDescription
Maximum Plasma Concentration (Cmax)Blood samples were collected at time 0 (pre-dose), 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 12 and 24 hours post-dose, relative to administration of PM or AM dose.Cmax was obtained directly from the concentration-time data.
Minimum Plasma Concentration (Cmin)Blood samples were collected at time 0 (pre-dose), 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 12 and 24 hours post-dose, relative to administration of PM or AM dose.Cmin was obtained directly from the concentration-time data.
Area Under the Plasma Concentration-time Curve Over the Dosing Interval of 24 Hours (AUC[TAU])Blood samples were collected at time 0 (pre-dose), 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 12 and 24 hours post-dose, relative to administration of PM or AM dose.The AUC(TAU), from time 0 to the time of the last measurable concentration (t), was calculated by the linear trapezoidal rule.
Time to Reach Maximum Observed Plasma Concentration (Tmax)Blood samples were collected at time 0 (pre-dose), 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 12 and 24 hours post-dose, relative to administration of PM or AM dose.Tmax was obtained directly from the concentration-time data.

Secondary

MeasureTime frameDescription
Number of Participants With Serum Chemistry MAsThroughout study, from screening (within 21 days of Day 1 dosing) through Day 3.MAs are laboratory measurements marked as abnormal, per pre-defined study criteria, at any study time point. The following serum chemistry MA definitions specify the criteria for MAs in the data presented. High bilirubin (total): \>1.1 x ULN (or if pre-treatment value \>ULN, then \>1.25 x pre-treatment value). High creatinine: \>1.33 x pre-treatment value. Low albumin: \<0.9 x LLN (or if pre-treatment value \<LLN, then \<0.9 x pre-treatment value). High amylase (total): \>2 x pre-treatment value.
Number of Participants With Urinalysis MAsThroughout study, from screening (within 21 days of Day 1 dosing) through Day 3.MAs are laboratory measurements marked as abnormal, per pre-defined study criteria, at any study time point. The following urinalysis MA definitions specify the criteria for MAs in the data presented. The presence of white blood cells (WBCs) and red blood cells (RBCs) in the urine was graded on a scale: 0 = no cells present (negative); trace =a small number of cells present; then 1+, 2+, 3+ and 4+, denoting increasingly positive urine results (ie, WBCs/RBCs present in the urine). The MA for both WBCs and RBCs was \>= 2+ (or, if pre-treatment value \>=2+, then \>= 4+).
Number of Participants Who Died or Experienced Other Serious Adverse Events (SAEs)From screening (within 21 days of Day 1 dosing) to the study discharge day (Day 2 for AM dosing or Day 3 for PM dosing). Participants were monitored for SAEs up to 30 days after study discharge.An SAE was defined as any adverse event (AE) occurring at any dose that; resulted in death; was life threatening; resulted in a persistent or significant disability/incapacity; resulted in/prolonged an existing in-patient hospitalization; was a congenital anomaly/birth defect; was a cancer; or was an overdose.
Number of Participants With Clinically Meaningful Vital Signs MeasuresFrom screening (within 21 days of Day 1 dosing) to the study discharge day (Day 2 for AM dosing or Day 3 for PM dosing)Vital signs were recorded throughout the study and included investigations related to body temperature, respiratory rate, seated blood pressure (systolic and diastolic), and heart rate. The investigator used his/her clinical judgement to decide whether or not abnormalities in vital signs were clinically meaningful.
Number of Participants With Abnormal Physical Examination Findings at Baseline (Screening and/or Day 1)From screening (within 21 days of Day 1 dosing) to the study discharge day (Day 2 for AM dosing or Day 3 for PM dosing)The physical examination included an evaluation of the participant's height and body mass index (BMI) (at screening only), and weight. Abnormal physical examination are findings that are clinically meaningful by the judgment of the investigator
Number of Participants With Identified Electrocardiogram (ECG) AbnormalitiesFrom screening (within 21 days of Day 1 dosing) to the study discharge day (Day 2 for AM dosing or Day 3 for PM dosing)ECG abnormalities are findings that are clinically meaningful by the judgment of the investigator. A 12-lead ECG was performed and all ECG recordings were evaluated by the investigator. Abnormalities, if present at any study time point, were listed.
Number of Participants Who Experienced AEsFrom screening (within 21 days of Day 1 dosing) to the study discharge day (Day 2 for AM dosing or Day 3 for PM dosing).AEs were defined as any new untoward medical occurrences or worsening of a pre-existing medical condition in a participant administered a medicinal product, whether or not considered related to the medicinal product.
Number of Participants Who Experienced AEs Leading to Study Drug DiscontinuationFrom screening (within 21 days of Day 1 dosing) to the study discharge day (Day 2 for AM dosing or Day 3 for PM dosing).AEs were defined as any new untoward medical occurrences or worsening of a pre-existing medical condition in a participant administered a medicinal product, whether or not considered related to the medicinal product. Participants who discontinued the study due to an AE were recorded.
Number of Participants With Marked Abnormalities (MAs) in Hematology MeasurementsThroughout study, from screening (within 21 days of Day 1 dosing) through Day 3.MAs are laboratory measurements marked as abnormal, per pre-defined study criteria, at any study time point. The following hematology MA definitions specify the criteria for the data presented. Low platelet count: \<0.85 x lower limit of normal (LLN) (or if pre-treatment value \<LLN, then \<0.85 x pre-treatment value). Low leukocytes: \<0.9 x LLN (or if pre-treatment value \<LLN, then \<0.85 x pre-treatment value. If pre-treatment value \>upper limit of normal \[ULN\], then \<LLN). Low neutrophils+bands (absolute): \<=1.500 10\^3 cells/microliter (uL). Low lymphocytes (absolute): \<0.750 10\^3 cells/uL.

Countries

Italy, United States

Participant flow

Pre-assignment details

21 participants were enrolled in the study; 5 discontinued prior to study drug administration (1 adverse event, 1 enrollment completed, 1 screen failure, 1 no longer met study criteria and 1 withdrew consent).

Participants by arm

ArmCount
EFV600mg Participants With Mild Hepatic Impairment
Participants were administered a dose of 600 mg once daily (capsules or tablets) of efavirenz, either in the morning (at approximately 9:00 AM) or before bed time (at approximately 9:00 PM), on an empty stomach. The duration of efavirenz administration was 2 days and participants were admitted to the clinical facility for this period. Mild hepatic impairment (grade A) is defined as a Child-Pugh (CP) total score of 5-6. The CP classification assesses 5 hepatic parameters (total serum bilirubin, serum albumin, prothrombin time, ascites and encephalopathy) on a scale of 1 (mild or none) to 3 (most severe). Total score range is 5 (mild) to 15 (severe).
6
EFV600mg Participants With Moderate Hepatic Impairment
Participants were administered a dose of 600 mg once daily (capsules or tablets) of efavirenz, either in the morning (at approximately 9:00 AM) or before bed time (at approximately 9:00 PM), on an empty stomach. The duration of efavirenz administration was 2 days and participants were admitted to the clinical facility for this period. Moderate hepatic impairment (grade B) is defined as a CP total score of 7-9.
2
EFV600mg Participants With Severe Hepatic Impairment
Participants were administered a dose of 600 mg once daily (capsules or tablets) of efavirenz, either in the morning (at approximately 9:00 AM) or before bed time (at approximately 9:00 PM), on an empty stomach. The duration of efavirenz administration was 2 days and participants were admitted to the clinical facility for this period. Participants who were on an off-label reduced dose of efavirenz (eg, 400 mg) continued on the reduced dose. Severe hepatic impairment (grade C) is defined as a CP total score of 10-15.
1
EFV600mg Participants With Normal Hepatic Function
Participants were administered a dose of 600 mg once daily (capsules or tablets) of efavirenz either in the morning (at approximately 9:00 AM) or before bed time (at approximately 9:00 PM) on an empty stomach. The duration of efavirenz administration was 2 days when participants were admitted to the clinical facility. Participants were enrolled after at least 6 participants with hepatic impairment had completed. One participant enrolled twice in the study and is hence counted twice in this group
7
Total16

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyParticipant no longer met study criteria0001

Baseline characteristics

CharacteristicEFV600mg Participants With Mild Hepatic ImpairmentEFV600mg Participants With Moderate Hepatic ImpairmentEFV600mg Participants With Severe Hepatic ImpairmentEFV600mg Participants With Normal Hepatic FunctionTotal
Age Continuous50 years
STANDARD_DEVIATION 11
51 years
STANDARD_DEVIATION 1
47 years49 years
STANDARD_DEVIATION 4
49 years
STANDARD_DEVIATION 7
Age, Customized
< 65 years
5 participants2 participants1 participants7 participants15 participants
Age, Customized
>= 65 years
1 participants0 participants0 participants0 participants1 participants
Body mass index (BMI) Continuous26.3 kg/m^2
STANDARD_DEVIATION 3.7
24.6 kg/m^2
STANDARD_DEVIATION 0.1
24.0 kg/m^222.8 kg/m^2
STANDARD_DEVIATION 2.2
24.4 kg/m^2
STANDARD_DEVIATION 3
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants0 Participants1 Participants0 Participants2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants2 Participants0 Participants6 Participants13 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants1 Participants1 Participants
Height Continuous165.5 cm
STANDARD_DEVIATION 11.9
173.4 cm
STANDARD_DEVIATION 3.7
160.0 cm175.6 cm
STANDARD_DEVIATION 7.2
170.6 cm
STANDARD_DEVIATION 10
Race/Ethnicity, Customized
American Indian
1 participants0 participants0 participants0 participants1 participants
Race/Ethnicity, Customized
Black
3 participants1 participants0 participants5 participants9 participants
Race/Ethnicity, Customized
Hispanic/Latino
0 participants0 participants1 participants0 participants1 participants
Race/Ethnicity, Customized
White
2 participants1 participants0 participants2 participants5 participants
Sex: Female, Male
Female
4 Participants0 Participants1 Participants0 Participants5 Participants
Sex: Female, Male
Male
2 Participants2 Participants0 Participants7 Participants11 Participants
Weight, Continuous71.5 kilogram
STANDARD_DEVIATION 7.2
73.9 kilogram
STANDARD_DEVIATION 2.9
61.5 kilogram70.4 kilogram
STANDARD_DEVIATION 9.6
70.7 kilogram
STANDARD_DEVIATION 7.9

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —
other
Total, other adverse events
1 / 60 / 20 / 10 / 70 / 5
serious
Total, serious adverse events
0 / 60 / 20 / 10 / 71 / 5

Outcome results

Primary

Area Under the Plasma Concentration-time Curve Over the Dosing Interval of 24 Hours (AUC[TAU])

The AUC(TAU), from time 0 to the time of the last measurable concentration (t), was calculated by the linear trapezoidal rule.

Time frame: Blood samples were collected at time 0 (pre-dose), 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 12 and 24 hours post-dose, relative to administration of PM or AM dose.

Population: The analysis was performed per protocol.

ArmMeasureValue (GEOMETRIC_MEAN)
EFV600mg Participants With Mild Hepatic ImpairmentArea Under the Plasma Concentration-time Curve Over the Dosing Interval of 24 Hours (AUC[TAU])83.422 mcg*h/mL
EFV600mg Participants With Moderate Hepatic ImpairmentArea Under the Plasma Concentration-time Curve Over the Dosing Interval of 24 Hours (AUC[TAU])75.425 mcg*h/mL
EFV600mg Participants With Severe Hepatic ImpairmentArea Under the Plasma Concentration-time Curve Over the Dosing Interval of 24 Hours (AUC[TAU])101.912 mcg*h/mL
EFV600mg Participants With Normal Hepatic FunctionArea Under the Plasma Concentration-time Curve Over the Dosing Interval of 24 Hours (AUC[TAU])93.516 mcg*h/mL
Primary

Maximum Plasma Concentration (Cmax)

Cmax was obtained directly from the concentration-time data.

Time frame: Blood samples were collected at time 0 (pre-dose), 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 12 and 24 hours post-dose, relative to administration of PM or AM dose.

Population: The analysis was performed per protocol.

ArmMeasureValue (GEOMETRIC_MEAN)
EFV600mg Participants With Mild Hepatic ImpairmentMaximum Plasma Concentration (Cmax)5.303 micrograms (mcg)/mL
EFV600mg Participants With Moderate Hepatic ImpairmentMaximum Plasma Concentration (Cmax)8.964 micrograms (mcg)/mL
EFV600mg Participants With Severe Hepatic ImpairmentMaximum Plasma Concentration (Cmax)6.750 micrograms (mcg)/mL
EFV600mg Participants With Normal Hepatic FunctionMaximum Plasma Concentration (Cmax)6.515 micrograms (mcg)/mL
Primary

Minimum Plasma Concentration (Cmin)

Cmin was obtained directly from the concentration-time data.

Time frame: Blood samples were collected at time 0 (pre-dose), 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 12 and 24 hours post-dose, relative to administration of PM or AM dose.

Population: The analysis was performed per protocol.

ArmMeasureValue (GEOMETRIC_MEAN)
EFV600mg Participants With Mild Hepatic ImpairmentMinimum Plasma Concentration (Cmin)2.599 mcg/mL
EFV600mg Participants With Moderate Hepatic ImpairmentMinimum Plasma Concentration (Cmin)4.885 mcg/mL
EFV600mg Participants With Severe Hepatic ImpairmentMinimum Plasma Concentration (Cmin)3.780 mcg/mL
EFV600mg Participants With Normal Hepatic FunctionMinimum Plasma Concentration (Cmin)2.405 mcg/mL
Primary

Time to Reach Maximum Observed Plasma Concentration (Tmax)

Tmax was obtained directly from the concentration-time data.

Time frame: Blood samples were collected at time 0 (pre-dose), 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 12 and 24 hours post-dose, relative to administration of PM or AM dose.

Population: The analysis was performed per protocol.

ArmMeasureValue (MEDIAN)
EFV600mg Participants With Mild Hepatic ImpairmentTime to Reach Maximum Observed Plasma Concentration (Tmax)1.765 hours
EFV600mg Participants With Moderate Hepatic ImpairmentTime to Reach Maximum Observed Plasma Concentration (Tmax)4.500 hours
EFV600mg Participants With Severe Hepatic ImpairmentTime to Reach Maximum Observed Plasma Concentration (Tmax)1.000 hours
EFV600mg Participants With Normal Hepatic FunctionTime to Reach Maximum Observed Plasma Concentration (Tmax)3.500 hours
Secondary

Number of Participants Who Died or Experienced Other Serious Adverse Events (SAEs)

An SAE was defined as any adverse event (AE) occurring at any dose that; resulted in death; was life threatening; resulted in a persistent or significant disability/incapacity; resulted in/prolonged an existing in-patient hospitalization; was a congenital anomaly/birth defect; was a cancer; or was an overdose.

Time frame: From screening (within 21 days of Day 1 dosing) to the study discharge day (Day 2 for AM dosing or Day 3 for PM dosing). Participants were monitored for SAEs up to 30 days after study discharge.

Population: All data from participants who signed the informed consent and enrolled in the study is included in the data set used for evaluating SAEs.

ArmMeasureGroupValue (NUMBER)
EFV600mg Participants With Mild Hepatic ImpairmentNumber of Participants Who Died or Experienced Other Serious Adverse Events (SAEs)Deaths0 Participants
EFV600mg Participants With Mild Hepatic ImpairmentNumber of Participants Who Died or Experienced Other Serious Adverse Events (SAEs)Other Serious Adverse Events0 Participants
EFV600mg Participants With Moderate Hepatic ImpairmentNumber of Participants Who Died or Experienced Other Serious Adverse Events (SAEs)Deaths0 Participants
EFV600mg Participants With Moderate Hepatic ImpairmentNumber of Participants Who Died or Experienced Other Serious Adverse Events (SAEs)Other Serious Adverse Events0 Participants
EFV600mg Participants With Severe Hepatic ImpairmentNumber of Participants Who Died or Experienced Other Serious Adverse Events (SAEs)Deaths0 Participants
EFV600mg Participants With Severe Hepatic ImpairmentNumber of Participants Who Died or Experienced Other Serious Adverse Events (SAEs)Other Serious Adverse Events0 Participants
EFV600mg Participants With Normal Hepatic FunctionNumber of Participants Who Died or Experienced Other Serious Adverse Events (SAEs)Other Serious Adverse Events0 Participants
EFV600mg Participants With Normal Hepatic FunctionNumber of Participants Who Died or Experienced Other Serious Adverse Events (SAEs)Deaths0 Participants
Participants Not DosedNumber of Participants Who Died or Experienced Other Serious Adverse Events (SAEs)Deaths1 Participants
Participants Not DosedNumber of Participants Who Died or Experienced Other Serious Adverse Events (SAEs)Other Serious Adverse Events1 Participants
Secondary

Number of Participants Who Experienced AEs

AEs were defined as any new untoward medical occurrences or worsening of a pre-existing medical condition in a participant administered a medicinal product, whether or not considered related to the medicinal product.

Time frame: From screening (within 21 days of Day 1 dosing) to the study discharge day (Day 2 for AM dosing or Day 3 for PM dosing).

Population: All participants who received study drug on Day 1 were included in the analysis.

ArmMeasureValue (NUMBER)
EFV600mg Participants With Mild Hepatic ImpairmentNumber of Participants Who Experienced AEs1 participants
EFV600mg Participants With Moderate Hepatic ImpairmentNumber of Participants Who Experienced AEs0 participants
EFV600mg Participants With Severe Hepatic ImpairmentNumber of Participants Who Experienced AEs0 participants
EFV600mg Participants With Normal Hepatic FunctionNumber of Participants Who Experienced AEs0 participants
Secondary

Number of Participants Who Experienced AEs Leading to Study Drug Discontinuation

AEs were defined as any new untoward medical occurrences or worsening of a pre-existing medical condition in a participant administered a medicinal product, whether or not considered related to the medicinal product. Participants who discontinued the study due to an AE were recorded.

Time frame: From screening (within 21 days of Day 1 dosing) to the study discharge day (Day 2 for AM dosing or Day 3 for PM dosing).

Population: All participants who received study drug on Day 1 were included in the analysis.

ArmMeasureValue (NUMBER)
EFV600mg Participants With Mild Hepatic ImpairmentNumber of Participants Who Experienced AEs Leading to Study Drug Discontinuation0 participants
EFV600mg Participants With Moderate Hepatic ImpairmentNumber of Participants Who Experienced AEs Leading to Study Drug Discontinuation0 participants
EFV600mg Participants With Severe Hepatic ImpairmentNumber of Participants Who Experienced AEs Leading to Study Drug Discontinuation0 participants
EFV600mg Participants With Normal Hepatic FunctionNumber of Participants Who Experienced AEs Leading to Study Drug Discontinuation0 participants
Secondary

Number of Participants With Abnormal Physical Examination Findings at Baseline (Screening and/or Day 1)

The physical examination included an evaluation of the participant's height and body mass index (BMI) (at screening only), and weight. Abnormal physical examination are findings that are clinically meaningful by the judgment of the investigator

Time frame: From screening (within 21 days of Day 1 dosing) to the study discharge day (Day 2 for AM dosing or Day 3 for PM dosing)

Population: All participants who received study drug on Day 1 were included in the analysis. Physical examination findings were not analysed at discharge.

ArmMeasureValue (NUMBER)
EFV600mg Participants With Mild Hepatic ImpairmentNumber of Participants With Abnormal Physical Examination Findings at Baseline (Screening and/or Day 1)5 participants
EFV600mg Participants With Moderate Hepatic ImpairmentNumber of Participants With Abnormal Physical Examination Findings at Baseline (Screening and/or Day 1)2 participants
EFV600mg Participants With Severe Hepatic ImpairmentNumber of Participants With Abnormal Physical Examination Findings at Baseline (Screening and/or Day 1)1 participants
EFV600mg Participants With Normal Hepatic FunctionNumber of Participants With Abnormal Physical Examination Findings at Baseline (Screening and/or Day 1)5 participants
Secondary

Number of Participants With Clinically Meaningful Vital Signs Measures

Vital signs were recorded throughout the study and included investigations related to body temperature, respiratory rate, seated blood pressure (systolic and diastolic), and heart rate. The investigator used his/her clinical judgement to decide whether or not abnormalities in vital signs were clinically meaningful.

Time frame: From screening (within 21 days of Day 1 dosing) to the study discharge day (Day 2 for AM dosing or Day 3 for PM dosing)

Population: All participants who received study drug on Day 1 were included in the analysis.

ArmMeasureValue (NUMBER)
EFV600mg Participants With Mild Hepatic ImpairmentNumber of Participants With Clinically Meaningful Vital Signs Measures0 participants
EFV600mg Participants With Moderate Hepatic ImpairmentNumber of Participants With Clinically Meaningful Vital Signs Measures0 participants
EFV600mg Participants With Severe Hepatic ImpairmentNumber of Participants With Clinically Meaningful Vital Signs Measures0 participants
EFV600mg Participants With Normal Hepatic FunctionNumber of Participants With Clinically Meaningful Vital Signs Measures0 participants
Secondary

Number of Participants With Identified Electrocardiogram (ECG) Abnormalities

ECG abnormalities are findings that are clinically meaningful by the judgment of the investigator. A 12-lead ECG was performed and all ECG recordings were evaluated by the investigator. Abnormalities, if present at any study time point, were listed.

Time frame: From screening (within 21 days of Day 1 dosing) to the study discharge day (Day 2 for AM dosing or Day 3 for PM dosing)

Population: All participants who received study drug on Day 1 were included in the analysis.

ArmMeasureValue (NUMBER)
EFV600mg Participants With Mild Hepatic ImpairmentNumber of Participants With Identified Electrocardiogram (ECG) Abnormalities3 participants
EFV600mg Participants With Moderate Hepatic ImpairmentNumber of Participants With Identified Electrocardiogram (ECG) Abnormalities1 participants
EFV600mg Participants With Severe Hepatic ImpairmentNumber of Participants With Identified Electrocardiogram (ECG) Abnormalities0 participants
EFV600mg Participants With Normal Hepatic FunctionNumber of Participants With Identified Electrocardiogram (ECG) Abnormalities5 participants
Secondary

Number of Participants With Marked Abnormalities (MAs) in Hematology Measurements

MAs are laboratory measurements marked as abnormal, per pre-defined study criteria, at any study time point. The following hematology MA definitions specify the criteria for the data presented. Low platelet count: \<0.85 x lower limit of normal (LLN) (or if pre-treatment value \<LLN, then \<0.85 x pre-treatment value). Low leukocytes: \<0.9 x LLN (or if pre-treatment value \<LLN, then \<0.85 x pre-treatment value. If pre-treatment value \>upper limit of normal \[ULN\], then \<LLN). Low neutrophils+bands (absolute): \<=1.500 10\^3 cells/microliter (uL). Low lymphocytes (absolute): \<0.750 10\^3 cells/uL.

Time frame: Throughout study, from screening (within 21 days of Day 1 dosing) through Day 3.

Population: All participants who received study drug on Day 1 and were evaluated for these measures.

ArmMeasureGroupValue (NUMBER)
EFV600mg Participants With Mild Hepatic ImpairmentNumber of Participants With Marked Abnormalities (MAs) in Hematology MeasurementsLow platelet count0 participants
EFV600mg Participants With Mild Hepatic ImpairmentNumber of Participants With Marked Abnormalities (MAs) in Hematology MeasurementsLow leukocytes1 participants
EFV600mg Participants With Mild Hepatic ImpairmentNumber of Participants With Marked Abnormalities (MAs) in Hematology MeasurementsLow neutrophils+bands (absolute)1 participants
EFV600mg Participants With Mild Hepatic ImpairmentNumber of Participants With Marked Abnormalities (MAs) in Hematology MeasurementsLow lymphocytes (absolute)0 participants
EFV600mg Participants With Moderate Hepatic ImpairmentNumber of Participants With Marked Abnormalities (MAs) in Hematology MeasurementsLow leukocytes0 participants
EFV600mg Participants With Moderate Hepatic ImpairmentNumber of Participants With Marked Abnormalities (MAs) in Hematology MeasurementsLow neutrophils+bands (absolute)2 participants
EFV600mg Participants With Moderate Hepatic ImpairmentNumber of Participants With Marked Abnormalities (MAs) in Hematology MeasurementsLow lymphocytes (absolute)0 participants
EFV600mg Participants With Moderate Hepatic ImpairmentNumber of Participants With Marked Abnormalities (MAs) in Hematology MeasurementsLow platelet count1 participants
EFV600mg Participants With Severe Hepatic ImpairmentNumber of Participants With Marked Abnormalities (MAs) in Hematology MeasurementsLow neutrophils+bands (absolute)1 participants
EFV600mg Participants With Severe Hepatic ImpairmentNumber of Participants With Marked Abnormalities (MAs) in Hematology MeasurementsLow leukocytes0 participants
EFV600mg Participants With Severe Hepatic ImpairmentNumber of Participants With Marked Abnormalities (MAs) in Hematology MeasurementsLow lymphocytes (absolute)1 participants
EFV600mg Participants With Severe Hepatic ImpairmentNumber of Participants With Marked Abnormalities (MAs) in Hematology MeasurementsLow platelet count0 participants
EFV600mg Participants With Normal Hepatic FunctionNumber of Participants With Marked Abnormalities (MAs) in Hematology MeasurementsLow lymphocytes (absolute)0 participants
EFV600mg Participants With Normal Hepatic FunctionNumber of Participants With Marked Abnormalities (MAs) in Hematology MeasurementsLow leukocytes1 participants
EFV600mg Participants With Normal Hepatic FunctionNumber of Participants With Marked Abnormalities (MAs) in Hematology MeasurementsLow platelet count0 participants
EFV600mg Participants With Normal Hepatic FunctionNumber of Participants With Marked Abnormalities (MAs) in Hematology MeasurementsLow neutrophils+bands (absolute)0 participants
Secondary

Number of Participants With Serum Chemistry MAs

MAs are laboratory measurements marked as abnormal, per pre-defined study criteria, at any study time point. The following serum chemistry MA definitions specify the criteria for MAs in the data presented. High bilirubin (total): \>1.1 x ULN (or if pre-treatment value \>ULN, then \>1.25 x pre-treatment value). High creatinine: \>1.33 x pre-treatment value. Low albumin: \<0.9 x LLN (or if pre-treatment value \<LLN, then \<0.9 x pre-treatment value). High amylase (total): \>2 x pre-treatment value.

Time frame: Throughout study, from screening (within 21 days of Day 1 dosing) through Day 3.

Population: All participants who received study drug on Day 1 were included in the analysis. The 'n' signifies those participants who received study drug and were evaluated for this measure, for each group respectively.

ArmMeasureGroupValue (NUMBER)
EFV600mg Participants With Mild Hepatic ImpairmentNumber of Participants With Serum Chemistry MAsHigh creatinine (n = 5, 1, 1, 7)0 participants
EFV600mg Participants With Mild Hepatic ImpairmentNumber of Participants With Serum Chemistry MAsHigh amylase (total) (n = 5, 1, 0, 7)0 participants
EFV600mg Participants With Mild Hepatic ImpairmentNumber of Participants With Serum Chemistry MAsHigh bilirubin (total) (n = 5, 1, 1, 7)1 participants
EFV600mg Participants With Mild Hepatic ImpairmentNumber of Participants With Serum Chemistry MAsLow albumin (n = 5, 1, 1, 7)0 participants
EFV600mg Participants With Moderate Hepatic ImpairmentNumber of Participants With Serum Chemistry MAsHigh bilirubin (total) (n = 5, 1, 1, 7)0 participants
EFV600mg Participants With Moderate Hepatic ImpairmentNumber of Participants With Serum Chemistry MAsHigh amylase (total) (n = 5, 1, 0, 7)0 participants
EFV600mg Participants With Moderate Hepatic ImpairmentNumber of Participants With Serum Chemistry MAsHigh creatinine (n = 5, 1, 1, 7)0 participants
EFV600mg Participants With Moderate Hepatic ImpairmentNumber of Participants With Serum Chemistry MAsLow albumin (n = 5, 1, 1, 7)1 participants
EFV600mg Participants With Severe Hepatic ImpairmentNumber of Participants With Serum Chemistry MAsHigh bilirubin (total) (n = 5, 1, 1, 7)0 participants
EFV600mg Participants With Severe Hepatic ImpairmentNumber of Participants With Serum Chemistry MAsHigh amylase (total) (n = 5, 1, 0, 7)0 participants
EFV600mg Participants With Severe Hepatic ImpairmentNumber of Participants With Serum Chemistry MAsLow albumin (n = 5, 1, 1, 7)0 participants
EFV600mg Participants With Severe Hepatic ImpairmentNumber of Participants With Serum Chemistry MAsHigh creatinine (n = 5, 1, 1, 7)0 participants
EFV600mg Participants With Normal Hepatic FunctionNumber of Participants With Serum Chemistry MAsHigh amylase (total) (n = 5, 1, 0, 7)1 participants
EFV600mg Participants With Normal Hepatic FunctionNumber of Participants With Serum Chemistry MAsHigh creatinine (n = 5, 1, 1, 7)1 participants
EFV600mg Participants With Normal Hepatic FunctionNumber of Participants With Serum Chemistry MAsLow albumin (n = 5, 1, 1, 7)0 participants
EFV600mg Participants With Normal Hepatic FunctionNumber of Participants With Serum Chemistry MAsHigh bilirubin (total) (n = 5, 1, 1, 7)0 participants
Secondary

Number of Participants With Urinalysis MAs

MAs are laboratory measurements marked as abnormal, per pre-defined study criteria, at any study time point. The following urinalysis MA definitions specify the criteria for MAs in the data presented. The presence of white blood cells (WBCs) and red blood cells (RBCs) in the urine was graded on a scale: 0 = no cells present (negative); trace =a small number of cells present; then 1+, 2+, 3+ and 4+, denoting increasingly positive urine results (ie, WBCs/RBCs present in the urine). The MA for both WBCs and RBCs was \>= 2+ (or, if pre-treatment value \>=2+, then \>= 4+).

Time frame: Throughout study, from screening (within 21 days of Day 1 dosing) through Day 3.

Population: All participants who received study drug on Day 1 and were evaluated for these measures.

ArmMeasureGroupValue (NUMBER)
EFV600mg Participants With Mild Hepatic ImpairmentNumber of Participants With Urinalysis MAsWhite blood cells (WBCs)1 participants
EFV600mg Participants With Mild Hepatic ImpairmentNumber of Participants With Urinalysis MAsRed blood cells (RBCs)1 participants
EFV600mg Participants With Moderate Hepatic ImpairmentNumber of Participants With Urinalysis MAsRed blood cells (RBCs)0 participants
EFV600mg Participants With Moderate Hepatic ImpairmentNumber of Participants With Urinalysis MAsWhite blood cells (WBCs)0 participants
EFV600mg Participants With Severe Hepatic ImpairmentNumber of Participants With Urinalysis MAsWhite blood cells (WBCs)0 participants
EFV600mg Participants With Severe Hepatic ImpairmentNumber of Participants With Urinalysis MAsRed blood cells (RBCs)0 participants
EFV600mg Participants With Normal Hepatic FunctionNumber of Participants With Urinalysis MAsWhite blood cells (WBCs)0 participants
EFV600mg Participants With Normal Hepatic FunctionNumber of Participants With Urinalysis MAsRed blood cells (RBCs)0 participants

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