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A Study to Evaluate the Effect of the Experimental GLP-1 Drug PF-07081532 on Blood Levels of Common Birth Control Pills, and Drugs Omeprazole and Midazolam, and Effect of GLP-1 Drug Semaglutide on Midazolam Blood Levels in Healthy Adults With Weight in the Obesity Range

Phase 1
Terminated
Conditions
Obesity
Interventions
Registration Number
NCT05671653
Lead Sponsor
Pfizer
Brief Summary

Two different groups of healthy volunteers will be chronically treated with GLP-1 drugs PF-07081532 or alternatively Semaglutide. The effect of these GLP-1 drugs on a single dose of the common sedative medication midazolam blood levels will be measured. The effect of chronic PF-07081532 on single doses of the common stomach acid medication omeprazole, and common birth control medication blood levels will also be measured. The hypothesis is that chronic administration of the GLP-1 drugs will minimally affect blood levels from these common medications.

Detailed Description

Not available

Recruitment & Eligibility

Status
TERMINATED
Sex
Female
Target Recruitment
32
Inclusion Criteria
  • Healthy (no clinically relevant abnormalities)
  • BMI 30.0-45.4 inclusive
Exclusion Criteria
  • Current or history of significant clinical condition
  • Use of prescription or nonprescription drugs and dietary and herbal supplements within 7 or 14 days or 5 half-lives (whichever is longer)
  • Pregnant
  • Breast feeding

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Cohort 2: SemaglutideSemaglutideCohort 2 is an open label, 4-period, fixed-sequence design to evaluate the effect of steady state semaglutide on the SD PK of midazolam in obese adult female participants with a BMI ≥30 kg/m2
Cohort 1: PF-07081532PF-07081532Cohort 1 is an open-label, 9 period, fixed-sequence design to evaluate the effect of 2 steady state dose levels of PF-07081532 on the SD pharmacokinetics of midazolam and omeprazole, administered simultaneously, and an OC (LE/EE) in otherwise healthy obese adult female participants with a BMI ≥30 kg/m2.
Primary Outcome Measures
NameTimeMethod
Cohort 1: Area Under the Plasma Concentration-Time Profile From Time 0 Extrapolated to Infinite Time (AUCinf) of Midazolam in Periods 1, 4 and 7For Cohort 1 Periods 1, 4, and 7: At 0 (prior to midazolam dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Midazolam was given on Day 1 in Period 1, 4, 7 of Cohort 1 and blood samples were collected for midazolam pharmacokinetic (PK) at the preset time points described in the Time Frame. AUCinf calculated area under the plasma concentration-time profile from time 0 extrapolated to infinite time.

Cohort 1: Area Under the Plasma Concentration-Time Profile From Time 0 to the Time of the Last Quantifiable Concentration (AUClast) of Omeprazole in Periods 1, 4 and 7For Cohort 1 Periods 1, 4, and 7: At 0 (prior to omeprazole dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Omeprazole was given on Day 1 in Period 1, 4, 7 of Cohort 1 and blood samples were collected for omeprazole PK at the preset time points described in the Time Frame. AUClast calculated area under the plasma concentration-time profile from time 0 to the time of the last quantifiable concentration.

Cohort 1: AUClast of Levonorgestrel (LE) in Periods 2, 5,and 8For Cohort 1 Periods 2, 5, and 8: At 0 (prior to LE dose), 0.75, 2, 4, 8, 12, 24, 48, 72, 96 and 120 hours post LE dose on Day 1 of each period

LE was given on Day 1 in Period 2, 5, 8 of Cohort 1 and blood samples were collected for LE PK at the preset time points described in the Time Frame. AUClast calculated area under the plasma concentration-time profile from time 0 to the time of the last quantifiable concentration.

Cohort 1: AUCinf of Ethinyl Estradiol (EE) in Periods 2, 5,and 8For Cohort 1 Periods 2, 5, and 8: At 0 (prior to EE dose), 0.75, 2, 4, 8, 12, 24, 48, 72, 96 and 120 hours post LE dose on Day 1 of each period

EE was given on Day 1 in Period 2, 5, 8 of Cohort 1 and blood samples were collected for EE PK at the preset time points described in the Time Frame. AUCinf calculated area under the plasma concentration-time profile from time 0 extrapolated to infinite time.

Cohort 2: AUCinf of Midazolam in Period 1 and 3For Cohort 2 Periods 1 and 3: At 0 (prior to midazolam dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Midazolam was given on Day 1 in Period 1 and 3 of Cohort 2 and blood samples were collected for midazolam pharmacokinetic (PK) at the preset time points described in the Time Frame. AUCinf calculated area under the plasma concentration-time profile from time 0 extrapolated to infinite time.

Secondary Outcome Measures
NameTimeMethod
Cohort 1: Number of Participants With All-Causality and Treatment-Related TEAEsFrom first dose (Day 1) to follow-up telephone contact (Days 153 to 160) in Cohort 1

An adverse event (AE) was any untoward medical occurrence in a participant who received study treatment without regard to possibility of causal relationship. Treatment-related AE was any untoward medical occurrence attributed to study treatment in a participant who received study treatment. Relatedness to study treatment was assessed by the investigator. A serious adverse event (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent events were events between first dose of study treatment and up to approximately 35 days that were absent before treatment or that worsened relative to pretreatment state.

Cohort 1: Number of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)From first dose (Day 1) to follow-up telephone contact (Days 153 to 160) in Cohort 1

Laboratory tests (including hematology, clinical chemistry, urinalysis) were reported and abnormalities were defined for laboratory values that met specific criteria.

Cohort 1: Percentage of Change From Baseline in Body Weight by Period 9 Day 1From baseline (last pre-dose measurement in Period 1) to Period 9 Day 1 (Day 124)

Percentage of changes from Baseline in body weight of the participants were measured.

Cohort 1: Number of Participants With Completed Suicide, Suicide Attempt, Preparatory Acts Towards Imminent Suicidal Behavior, Suicidal Ideation, or Self-Injurious Behavior of No Suicidal Intent As Assessed on the C-SSRSScreening, Study Day -1 (D-1) (ie, Period 1 Day -1 [P1D-1]), D7 (P3D1), D21 (P3D15), D35 (P4D1), D54 (P6D14), D68 (P6D28), D82 (P6D42), D96 (P6D56), D103 (P6D63), D110 (P8D6) and at follow up visit D132-135

The C-SSRS is an interview-based rating scale to systematically assess suicidal ideation and suicidal behavior. C-SSRS items were mapped to the following categories: completed suicide, suicide attempt, preparatory acts towards imminent suicidal behavior, suicidal ideation, and self-injurious behavior of no suicidal intent. Number of participants with completed suicide, suicide attempt, preparatory acts towards imminent suicidal behavior, suicidal ideation, or self-injurious behavior of no suicidal intent as assessed on the C-SSRS are reported below.

Cohort 1: Patient Health Quessionare-9 (PHQ-9) Total ScoresScreening, Study Day -1 (D-1) (ie, Period 1 Day -1 [P1D-1]), D7 (P3D1), D21 (P3D15), D35 (P4D1), D54 (P6D14), D68 (P6D28), D82 (P6D42), D96 (P6D56), D103 (P6D63), D110 (P8D6) and at follow up visit D132-135

The PHQ-9 is a 9 item self-report scale for the assessment of depressive symptoms. The PHQ-9 is completed by participants and reviewed by site staff at the pre-defined time points. The total score is derived by adding the corresponding values of responses to each item. The total score ranges from 0 to 27, with the following interpretation: 1-4: Minimal depression; 5-9: Mild depression; 10-14: Moderate depression; 15-19: Moderately severe depression; 20-27: Severe depression.

Cohort 1: AUCinf of Midazolam in Period 9For Cohort 1 Period 9: At 0 (prior to midazolam dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1

Midazolam was given on Day 1 in Period 9 of Cohort 1 and blood samples were collected for midazolam pharmacokinetic (PK) at the preset time points described in the Time Frame. AUCinf calculated area under the plasma concentration-time profile from time 0 extrapolated to infinite time.

Cohort 1: Maximum Observed Concentration (Cmax) of Midazolam in Period 1, 4, 7For Cohort 1 Periods 1, 4, and 7: At 0 (prior to midazolam dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Midazolam was given on Day 1 in Period 1, 4, 7 of Cohort 1 and blood samples were collected for midazolam PK at the preset time points described in the Time Frame. Cmax was defined as maximum observed concentration and was observed directly from data.

Cohort 1: Time for Cmax (Tmax) of Midazolam in Period 1, 4, 7For Cohort 1 Periods 1, 4, and 7: At 0 (prior to midazolam dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Midazolam was given on Day 1 in Period 1, 4, 7 of Cohort 1 and blood samples were collected for midazolam PK at the preset time points described in the Time Frame. Tmax was defined as time for Cmax and was observed directly from data.

Cohort 1: Apparent Clearance (CL/F) of Midazolam in Period 1, 4, 7For Cohort 1 Periods 1, 4, and 7: At 0 (prior to midazolam dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Midazolam was given on Day 1 in Period 1, 4, 7 of Cohort 1 and blood samples were collected for midazolam PK at the preset time points described in the Time Frame. CL/F was defined as apparent clearance and was calculated as dose/AUCinf.

Cohort 1: Apparent Volume of Distribution (Vz/F) of Midazolam in Period 1, 4, 7For Cohort 1 Periods 1, 4, and 7: At 0 (prior to midazolam dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Midazolam was given on Day 1 in Period 1, 4, 7 of Cohort 1 and blood samples were collected for midazolam PK at the preset time points described in the Time Frame. Vz/F was defined as apparent volume of distribution and was calculated as dose/(AUCinf\*kel), where kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration time curve.

Cohort 1: Terminal Half-Life (t1/2) of Midazolam in Period 1, 4, 7For Cohort 1 Periods 1, 4, and 7: At 0 (prior to midazolam dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Midazolam was given on Day 1 in Period 1, 4, 7 of Cohort 1 and blood samples were collected for midazolam PK at the preset time points described in the Time Frame. t1/2 was defined as terminal half life and was calculated as loge(2)/kel.

Cohort 1: Cmax of Omeprazole in Period 1, 4, 7For Cohort 1 Periods 1, 4, and 7: At 0 (prior to omeprazole dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Omeprazole was given on Day 1 in Period 1, 4, 7 of Cohort 1 and blood samples were collected for omeprazole PK at the preset time points described in the Time Frame. Cmax was defined as maximum observed concentration and was observed directly from data.

Cohort 1: Tmax of Omeprazole in Period 1, 4, 7For Cohort 1 Periods 1, 4, and 7: At 0 (prior to omeprazole dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Omeprazole was given on Day 1 in Period 1, 4, 7 of Cohort 1 and blood samples were collected for omeprazole PK at the preset time points described in the Time Frame. Tmax was defined as time for Cmax and was observed directly from data.

Cohort 1: CL/F of Omeprazole in Period 1, 4, 7For Cohort 1 Periods 1, 4, and 7: At 0 (prior to omeprazole dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Omeprazole was given on Day 1 in Period 1, 4, 7 of Cohort 1 and blood samples were collected for omeprazole PK at the preset time points described in the Time Frame. CL/F was defined as apparent clearance and was calculated as dose/AUCinf.

Cohort 1: Vz/F of Omeprazole in Period 1, 4, 7For Cohort 1 Periods 1, 4, and 7: At 0 (prior to omeprazole dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Omeprazole was given on Day 1 in Period 1, 4, 7 of Cohort 1 and blood samples were collected for omeprazole PK at the preset time points described in the Time Frame. Vz/F was defined as apparent volume of distribution and was calculated as dose/(AUCinf\*kel), where kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration time curve.

Cohort 1: t1/2 of Omeprazole in Period 1, 4, 7For Cohort 1 Periods 1, 4, and 7: At 0 (prior to omeprazole dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Omeprazole was given on Day 1 in Period 1, 4, 7 of Cohort 1 and blood samples were collected for omeprazole PK at the preset time points described in the Time Frame. Vz/F was defined as apparent volume of distribution and was calculated as dose/(AUCinf ×kel), where kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration time curve.

Cohort 1: Cmax of LE in Period 2, 5, 8For Cohort 1 Periods 2, 5, and 8: At 0 (prior to LE dose), 0.75, 2, 4, 8, 12, 24, 48, 72, 96 and 120 hours post LE dose on Day 1 of each period

LE was given on Day 1 in Period 2, 5, 8 of Cohort 1 and blood samples were collected for LE PK at the preset time points described in the Time Frame. Cmax was defined as maximum observed concentration and was observed directly from data.

Cohort 1: Tmax of LE in Period 2, 5, 8For Cohort 1 Periods 2, 5, and 8: At 0 (prior to LE dose), 0.75, 2, 4, 8, 12, 24, 48, 72, 96 and 120 hours post LE dose on Day 1 of each period

LE was given on Day 1 in Period 2, 5, 8 of Cohort 1 and blood samples were collected for LE PK at the preset time points described in the Time Frame. Cmax was defined as maximum observed concentration and was observed directly from data.

Cohort 1: CL/F of LE in Period 2, 5, 8For Cohort 1 Periods 2, 5, and 8: At 0 (prior to LE dose), 0.75, 2, 4, 8, 12, 24, 48, 72, 96 and 120 hours post LE dose on Day 1 of each period

LE was given on Day 1 in Period 2, 5, 8 of Cohort 1 and blood samples were collected for LE PK at the preset time points described in the Time Frame. Cmax was defined as maximum observed concentration and was observed directly from data.

Cohort 1: Vz/F of LE in Period 2, 5, 8For Cohort 1 Periods 2, 5, and 8: At 0 (prior to LE dose), 0.75, 2, 4, 8, 12, 24, 48, 72, 96 and 120 hours post LE dose on Day 1 of each period

LE was given on Day 1 in Period 2, 5, 8 of Cohort 1 and blood samples were collected for LE PK at the preset time points described in the Time Frame. Vz/F was defined as apparent volume of distribution and was calculated as dose/(AUCinf\*kel), where kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration time curve.

Cohort 1: t1/2 of LE in Period 2, 5, 8For Cohort 1 Periods 2, 5, and 8: At 0 (prior to LE dose), 0.75, 2, 4, 8, 12, 24, 48, 72, 96 and 120 hours post LE dose on Day 1 of each period

LE was given on Day 1 in Period 2, 5, 8 of Cohort 1 and blood samples were collected for LE PK at the preset time points described in the Time Frame. t1/2 was defined as terminal half life and was calculated as loge(2)/kel.

Cohort 1: Cmax of EE in Period 2, 5, 8For Cohort 1 Periods 2, 5, and 8: At 0 (prior to EE dose), 0.75, 2, 4, 8, 12, 24, 48, 72, 96 and 120 hours post LE dose on Day 1 of each period

EE was given on Day 1 in Period 2, 5, 8 of Cohort 1 and blood samples were collected for EE PK at the preset time points described in the Time Frame. Cmax was defined as maximum observed concentration and was observed directly from data.

Cohort 1: Tmax of EE in Period 2, 5, 8For Cohort 1 Periods 2, 5, and 8: At 0 (prior to EE dose), 0.75, 2, 4, 8, 12, 24, 48, 72, 96 and 120 hours post LE dose on Day 1 of each period

EE was given on Day 1 in Period 2, 5, 8 of Cohort 1 and blood samples were collected for EE PK at the preset time points described in the Time Frame. Tmax was defined as time for Cmax and was observed directly from data.

Cohort 1: CL/F of EE in Period 2, 5, 8For Cohort 1 Periods 2, 5, and 8: At 0 (prior to EE dose), 0.75, 2, 4, 8, 12, 24, 48, 72, 96 and 120 hours post LE dose on Day 1 of each period

EE was given on Day 1 in Period 2, 5, 8 of Cohort 1 and blood samples were collected for EE PK at the preset time points described in the Time Frame. CL/F was defined as apparent clearance and was calculated as dose/AUCinf.

Cohort 1: Vz/F of EE in Period 2, 5, 8For Cohort 1 Periods 2, 5, and 8: At 0 (prior to EE dose), 0.75, 2, 4, 8, 12, 24, 48, 72, 96 and 120 hours post LE dose on Day 1 of each period

EE was given on Day 1 in Period 2, 5, 8 of Cohort 1 and blood samples were collected for EE PK at the preset time points described in the Time Frame. Vz/F was defined as apparent volume of distribution and was calculated as dose/(AUCinf\*kel), where kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration time curve.

Cohort 1: t1/2 of EE in Period 2, 5, 8For Cohort 1 Periods 2, 5, and 8: At 0 (prior to EE dose), 0.75, 2, 4, 8, 12, 24, 48, 72, 96 and 120 hours post LE dose on Day 1 of each period

EE was given on Day 1 in Period 2, 5, 8 of Cohort 1 and blood samples were collected for EE PK at the preset time points described in the Time Frame. t1/2 was defined as terminal half life and was calculated as loge(2)/kel.

Cohort 1: Metabolite/Parent Ratio for AUCinf (MRAUCinf) of 1-Hydroxy Midazolam in Period 1, 4, 7For Cohort 1 Periods 1, 4, and 7: At 0 (prior to midazolam dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Midazolam was given on Day 1 in Period 1, 4, 7 of Cohort 1 and blood samples were collected for midazolam (parent) and and its metabolite 1-Hydroxy Midazolam PK at the preset time points described in the Time Frame. MRAUCinf was calculated as (AUCinf, metabolite/AUCinf, parent) \* (MWparent/MWmetabolite). MW = molecular weight.

Cohort 1: MRAUCinf of 5-Hydroxy Omeprazole in Period 1, 4, 7For Cohort 1 Periods 1, 4, and 7: At 0 (prior to omeprazole dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Omeprazole was given on Day 1 in Period 1, 4, 7 of Cohort 1 and blood samples were collected for omeprazole (parent) and and its metabolite 5-Hydroxy omeprazole PK at the preset time points described in the Time Frame. MRAUCinf was calculated as (AUCinf, metabolite/AUCinf, parent) \* (MWparent/MWmetabolite). MW = molecular weight.

Cohort 2: Number of Participants With Completed Suicide, Suicide Attempt, Preparatory Acts Towards Imminent Suicidal Behavior, Suicidal Ideation, or Self-Injurious Behavior of No Suicidal Intent As Assessed on the C-SSRSScreening, D-1 (P1D-1), P2 Week 5 [W5], P2W9, P2W13, P2W17, D150 (P3D2), at follow up visit (Day 172-175)

The C-SSRS is an interview-based rating scale to systematically assess suicidal ideation and suicidal behavior. C-SSRS items were mapped to the following categories: completed suicide, suicide attempt, preparatory acts towards imminent suicidal behavior, suicidal ideation, and self-injurious behavior of no suicidal intent. Number of participants with completed suicide, suicide attempt, preparatory acts towards imminent suicidal behavior, suicidal ideation, or self-injurious behavior of no suicidal intent as assessed on the C-SSRS are reported below.

Cohort 2: PHQ-9 Total ScoresScreening, D-1 (P1D-1), P2 Week 5 [W5], P2W9, P2W13, P2W17, D150 (P3D2), at follow up visit (Day 172-175)

The PHQ-9 is a 9 item self-report scale for the assessment of depressive symptoms. The PHQ-9 is completed by participants and reviewed by site staff at the pre-defined time points. The total score is derived by adding the corresponding values of responses to each item. The total score ranges from 0 to 27, with the following interpretation: 1-4: Minimal depression; 5-9: Mild depression; 10-14: Moderate depression; 15-19: Moderately severe depression; 20-27: Severe depression.

Cohort 2: AUCinf of Midazolam in Period 4For Cohort 2 Period 4: At 0 (prior to midazolam dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14 and 24 hours post midazolam dose on Day 1

Midazolam was given on Day 1 in Period 4 of Cohort 2 and blood samples were collected for midazolam pharmacokinetic (PK) at the preset time points described in the Time Frame. AUCinf calculated area under the plasma concentration-time profile from time 0 extrapolated to infinite time.

Cohort 1: Area Under the Plasma Concentration-Time Profile From Time 0 to 24 Hours (AUC24) of PF-07081532 in Period 3 and 6For Cohort 1 Periods 3 and 6: At 0 , 0.5, 1, 2, 4, 6, 8, 10, 14, and 24 hours post PF-07081532 dose on Day 28 of Period 3 and Day 63 of Period 6

PF-07081532 was given titrated to 80 mg QD on Day 1-28 of Period 3, and titrated to 260 mg QD on Day 1-63 of Period 6 in Cohort 1, and blood samples were collected for PF-07081532 PK at the preset time points described in the Time Frame. AUC24 was defined as area under the plasma concentration-time profile from time 0 to 24 hours and was determined using the linear/log trapezoidal method.

Cohort 1: Cmax of PF-07081532 in Period 3 and 6For Cohort 1 Periods 3 and 6: At 0 , 0.5, 1, 2, 4, 6, 8, 10, 14, and 24 hours post PF-07081532 dose on Day 28 of Period 3 and Day 63 of Period 6

PF-07081532 was given titrated to 80 mg QD on Day 1-28 of Period 3, and titrated to 260 mg QD on Day 1-63 of Period 6 in Cohort 1, and blood samples were collected for PF-07081532 PK at the preset time points described in the Time Frame. Cmax was defined as maximum observed concentration and was observed directly from data.

Cohort 1: Tmax of PF-07081532 in Period 3 and 6For Cohort 1 Periods 3 and 6: At 0 , 0.5, 1, 2, 4, 6, 8, 10, 14, and 24 hours post PF-07081532 dose on Day 28 of Period 3 and Day 63 of Period 6

PF-07081532 was given titrated to 80 mg QD on Day 1-28 of Period 3, and titrated to 260 mg QD on Day 1-63 of Period 6 in Cohort 1, and blood samples were collected for PF-07081532 PK at the preset time points described in the Time Frame. Tmax was defined as time for Cmax and was observed directly from data.

Cohort 2: Number of Participants With All-Causality and Treatment-Related TEAEsFrom first dose (Day 1) to follow-up telephone contact (Days 193 to 200) in Cohort 2

An adverse event (AE) was any untoward medical occurrence in a participant who received study treatment without regard to possibility of causal relationship. Treatment-related AE was any untoward medical occurrence attributed to study treatment in a participant who received study treatment. Relatedness to study treatment was assessed by the investigator. A serious adverse event (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent events were events between first dose of study treatment and up to approximately 35 days that were absent before treatment or that worsened relative to pretreatment state.

Cohort 2: Number of Participants With Laboratory Abnormalities (Without Regard to Baseline Abnormality)From first dose (Day 1) to follow-up telephone contact (Days 193 to 200) in Cohort 2

Laboratory tests (including hematology, clinical chemistry, urinalysis) were reported and abnormalities were defined for laboratory values that met specific criteria.

Cohort 2: Percentage of Change From Baseline in Body Weight by Period 4 Day 1From baseline (last pre-dose measurement in Period 1) to Period 4 Day 1 (Day 165)

Percentage of changes from Baseline in body weight of the participants were measured.

Cohort 2: Cmax of Midazolam in Period 1 and 3For Cohort 2 Periods 1 and 3: At 0 (prior to midazolam dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Midazolam was given on Day 1 in Period 1 and 3 of Cohort 2 and blood samples were collected for midazolam pharmacokinetic (PK) at the preset time points described in the Time Frame. Cmax was defined as maximum observed concentration and was observed directly from data.

Cohort 2: Tmax of Midazolam in Period 1 and 3For Cohort 2 Periods 1 and 3: At 0 (prior to midazolam dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Midazolam was given on Day 1 in Period 1 and 3 of Cohort 2 and blood samples were collected for midazolam pharmacokinetic (PK) at the preset time points described in the Time Frame. Tmax was defined as time for Cmax and was observed directly from data.

Cohort 2: CL/F of Midazolam in Period 1 and 3For Cohort 2 Periods 1 and 3: At 0 (prior to midazolam dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Midazolam was given on Day 1 in Period 1 and 3 of Cohort 2 and blood samples were collected for midazolam pharmacokinetic (PK) at the preset time points described in the Time Frame. CL/F was defined as apparent clearance and was calculated as dose/AUCinf.

Cohort 2: Vz/F of Midazolam in Period 1 and 3For Cohort 2 Periods 1 and 3: At 0 (prior to midazolam dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Midazolam was given on Day 1 in Period 1 and 3 of Cohort 2 and blood samples were collected for midazolam pharmacokinetic (PK) at the preset time points described in the Time Frame. Vz/F was defined as apparent volume of distribution and was calculated as dose/(AUCinf\*kel), where kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration time curve.

Cohort 2: t1/2 of Midazolam in Period 1 and 3For Cohort 2 Periods 1 and 3: At 0 (prior to midazolam dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Midazolam was given on Day 1 in Period 1 and 3 of Cohort 2 and blood samples were collected for midazolam pharmacokinetic (PK) at the preset time points described in the Time Frame. t1/2 was defined as terminal half life and was calculated as loge(2)/kel.

Cohort 2: MRAUCinf of 1-Hydroxy Midazolam in Period 1, 3, 4For Cohort 2 Periods 1 and 3: At 0 (prior to midazolam dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 14, 24 hours post midazolam dose on Day 1 of each period

Midazolam was given on Day 1 in Period 1, 3, 4 of Cohort 2 and blood samples were collected for midazolam (parent) and and its metabolite 1-Hydroxy Midazolam PK at the preset time points described in the Time Frame. MRAUCinf was calculated as (AUCinf, metabolite/AUCinf, parent) \* (MWparent/MWmetabolite). MW = molecular weight.

Trial Locations

Locations (1)

Anaheim Clinical Trials, LLC

🇺🇸

Anaheim, California, United States

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