Trial Outcomes & Findings for A Drug Drug Interaction (DDI) Study of Pirtobrutinib (LOXO-305) and Different Formulations of Midazolam in Healthy Participants (NCT NCT06180967)

NCT ID: NCT06180967

Last Updated: 2025-02-24

Results Overview

PK: AUC0-t of midazolam and its metabolite 1-OH-midazolam following oral dose administration was reported.

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

15 participants

Primary outcome timeframe

Period 1: Day 3 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 17 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Results posted on

2025-02-24

Participant Flow

The study consisted of 2 periods: Period 1 and Period 2. A total of 15 healthy participants were enrolled in the study.

Participant milestones

Participant milestones
Measure
Period 1: All Participants: Midazolam (IV + Oral Dose)
* Day 1: Participants received a single intravenous (IV) bolus dose of midazolam 250 micrograms (mcg) solution on Day 1. * Day 3: Participants received a single oral dose of midazolam 500 mcg syrup on Day 3. A washout period of 2 days between midazolam IV dose and midazolam oral dose on Day 1 and Day 3 was observed.
Period 2: All Participants: Pirtobrutinib + Midazolam (IV + Oral Dose)
* Day 5-17: Participants received Pirtobrutinib 200 mg tablets orally once daily (QD) in the morning from Day 5 through Day 17; * Day 15: Participants received single IV bolus dose of Midazolam 250 mcg followed by Pirtobrutinib intake on Day 15. * Day 17: Participants received a single oral dose of midazolam 500 mcg syrup followed by Pirtobrutinib intake on Day 17. A washout period of 2 days between midazolam IV dose and midazolam oral dose on Day 15 and Day 17 was observed.
Period 1: Day 1 to Day 4
STARTED
15
0
Period 1: Day 1 to Day 4
Received at Least 1 Dose of Study Drug
15
0
Period 1: Day 1 to Day 4
COMPLETED
15
0
Period 1: Day 1 to Day 4
NOT COMPLETED
0
0
Period 2: Day 5 to Day 20
STARTED
0
15
Period 2: Day 5 to Day 20
Received at Least 1 Dose of Study Drug
0
15
Period 2: Day 5 to Day 20
COMPLETED
0
15
Period 2: Day 5 to Day 20
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

A Drug Drug Interaction (DDI) Study of Pirtobrutinib (LOXO-305) and Different Formulations of Midazolam in Healthy Participants

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
All Participants: Midazolam (IV + Oral Dose) + Pirtobrutinib
n=15 Participants
All participants in the study who received: * Period 1, Day 1: Participants received a single intravenous (IV) bolus dose of midazolam 250 micrograms (mcg) solution on Day 1. * Period 1 Day 3: Participants received a single oral dose of midazolam 500 mcg syrup on Day 3. A washout period of 2 days between midazolam IV dose and midazolam oral dose on Day 1 and Day 3 was observed. * Period 2, Day 5-17: Participants received Pirtobrutinib 200 mg tablets orally once daily (QD) in the morning from Day 5 through Day 17 * Period 2, Day 15: Participants received single IV bolus dose of Midazolam 250 mcg followed by Pirtobrutinib intake on Day 15. * Period 2, Day 17: Participants received a single oral dose of midazolam 500 mcg syrup followed by Pirtobrutinib intake on Day 17. A washout period of 2 days between midazolam IV dose and midazolam oral dose on Day 15 and Day 17 was observed.
Age, Continuous
33.9 years
STANDARD_DEVIATION 9.50 • n=5 Participants
Sex: Female, Male
Female
3 Participants
n=5 Participants
Sex: Female, Male
Male
12 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
7 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
8 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
1 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
3 Participants
n=5 Participants
Race (NIH/OMB)
White
10 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
Region of Enrollment
United States
15 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Period 1: Day 3 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 17 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of oral midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: AUC0-t of midazolam and its metabolite 1-OH-midazolam following oral dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
Pharmacokinetics (PK): Area Under the Concentration-Time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of Midazolam and Its Metabolite 1-hydroxymidazolam (1-OH-midazolam) Following Oral Dose Administration
Midazolam
4.81 Hours*nanograms per milliliter (h*ng/mL)
Geometric Coefficient of Variation 40.8
8.30 Hours*nanograms per milliliter (h*ng/mL)
Geometric Coefficient of Variation 43.2
Pharmacokinetics (PK): Area Under the Concentration-Time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of Midazolam and Its Metabolite 1-hydroxymidazolam (1-OH-midazolam) Following Oral Dose Administration
Metabolite: 1-OH-medazolam
2.24 Hours*nanograms per milliliter (h*ng/mL)
Geometric Coefficient of Variation 41.9
2.52 Hours*nanograms per milliliter (h*ng/mL)
Geometric Coefficient of Variation 40.6

PRIMARY outcome

Timeframe: Period 1: Day 3 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 17 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of oral midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: AUC(0-inf) of midazolam and its metabolite 1-OH-midazolam following oral dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Area Under the Concentration-Time From Time 0 Extrapolated To Infinity (AUC0-inf) of Midazolam and Its Metabolite 1-OH-Midazolam Following Oral Dose Administration
Midazolam
5.31 h*ng/mL
Geometric Coefficient of Variation 43.1
9.01 h*ng/mL
Geometric Coefficient of Variation 44.0
PK: Area Under the Concentration-Time From Time 0 Extrapolated To Infinity (AUC0-inf) of Midazolam and Its Metabolite 1-OH-Midazolam Following Oral Dose Administration
Metabolite: 1-OH-midazolam
2.60 h*ng/mL
Geometric Coefficient of Variation 39.9
2.92 h*ng/mL
Geometric Coefficient of Variation 42.2

PRIMARY outcome

Timeframe: Period 1: Day 3 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 17 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of oral midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: %AUCextrap of midazolam and its metabolite 1-OH-midazolam following oral dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Percentage Extrapolation for AUC0-inf (%AUCextrap) of Midazolam and Its Metabolite 1-OH-Midazolam Following Oral Dose Administration
Midazolam
8.84 percentage of AUC0-inf
Geometric Coefficient of Variation 33.7
7.42 percentage of AUC0-inf
Geometric Coefficient of Variation 35.3
PK: Percentage Extrapolation for AUC0-inf (%AUCextrap) of Midazolam and Its Metabolite 1-OH-Midazolam Following Oral Dose Administration
Metabolite: 1-OH-midazolam
12.9 percentage of AUC0-inf
Geometric Coefficient of Variation 37.5
12.2 percentage of AUC0-inf
Geometric Coefficient of Variation 48.6

PRIMARY outcome

Timeframe: Period 1: Day 3 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 17 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of oral midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: Cmax of midazolam and its metabolite 1-OH-midazolam following oral dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Maximum Observed Plasma Concentration (Cmax) of Midazolam and Its Metabolite 1-OH-Midazolam Following Oral Dose Administration
Midazolam
2.33 nanograms per milliliter (ng/mL)
Geometric Coefficient of Variation 36.7
3.68 nanograms per milliliter (ng/mL)
Geometric Coefficient of Variation 34.3
PK: Maximum Observed Plasma Concentration (Cmax) of Midazolam and Its Metabolite 1-OH-Midazolam Following Oral Dose Administration
Metabolite: 1-OH-midazolam
1.25 nanograms per milliliter (ng/mL)
Geometric Coefficient of Variation 42.2
1.41 nanograms per milliliter (ng/mL)
Geometric Coefficient of Variation 40.2

PRIMARY outcome

Timeframe: Period 1: Day 3 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 17 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of oral midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: tmax of midazolam and its metabolite 1-OH-midazolam following oral dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Time to Maximum Observed Plasma Concentration (Tmax) of Midazolam and Its Metabolite 1-OH-Midazolam Following Oral Dose Administration
Midazolam
0.750 Hours
Interval 0.5 to 1.0
0.500 Hours
Interval 0.5 to 0.75
PK: Time to Maximum Observed Plasma Concentration (Tmax) of Midazolam and Its Metabolite 1-OH-Midazolam Following Oral Dose Administration
Metabolite: 1-OH-midazolam
0.750 Hours
Interval 0.5 to 1.0
0.500 Hours
Interval 0.5 to 1.0

PRIMARY outcome

Timeframe: Period 1: Day 3 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 17 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of oral midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: λz of midazolam and its metabolite 1-OH-midazolam following oral dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Apparent Terminal Elimination Rate Constant (Lambda [λ] z) of Midazolam and Its Metabolite 1-OH-Midazolam Following Oral Dose Administration
Midazolam
0.316 one per hour (1/h)
Geometric Coefficient of Variation 50.7
0.227 one per hour (1/h)
Geometric Coefficient of Variation 50.2
PK: Apparent Terminal Elimination Rate Constant (Lambda [λ] z) of Midazolam and Its Metabolite 1-OH-Midazolam Following Oral Dose Administration
Metabolite: 1-OH-midazolam
0.441 one per hour (1/h)
Geometric Coefficient of Variation 35.4
0.419 one per hour (1/h)
Geometric Coefficient of Variation 61.2

PRIMARY outcome

Timeframe: Period 1: Day 3 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 17 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of oral midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: CL/F of midazolam following oral dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Apparent Systemic Clearance (CL/F) of Midazolam Following Oral Dose Administration
94.2 Liters per hour (L/h)
Geometric Coefficient of Variation 43.1
55.5 Liters per hour (L/h)
Geometric Coefficient of Variation 44.0

PRIMARY outcome

Timeframe: Period 1: Day 3 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 17 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of oral midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: Vz/F of midazolam following oral dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Apparent Volume of Distribution (Vz/F) of Midazolam Following Oral Dose Administration
298 Liters
Geometric Coefficient of Variation 29.7
244 Liters
Geometric Coefficient of Variation 29.6

PRIMARY outcome

Timeframe: Period 1: Day 3 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 17 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of oral midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: t½ of midazolam and its metabolite 1-OH-midazolam following oral dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Apparent Plasma Terminal Elimination Half-life (t½) of Midazolam and Its Metabolite 1-OH-Midazolam Following Oral Dose Administration
Midazolam
2.20 hours
Geometric Coefficient of Variation 50.7
3.05 hours
Geometric Coefficient of Variation 50.2
PK: Apparent Plasma Terminal Elimination Half-life (t½) of Midazolam and Its Metabolite 1-OH-Midazolam Following Oral Dose Administration
Metabolite: 1-OH-midazolam
1.57 hours
Geometric Coefficient of Variation 35.4
1.65 hours
Geometric Coefficient of Variation 61.2

PRIMARY outcome

Timeframe: Period 1: Day 1 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 15 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of IV midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: CL of midazolam following intravenous dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Total Clearance (CL) of Midazolam Following Intravenous Dose Administration
26.0 L/h
Geometric Coefficient of Variation 21.4
23.1 L/h
Geometric Coefficient of Variation 26.5

PRIMARY outcome

Timeframe: Period 1: Day 1 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 15 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of IV midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: Vz of midazolam following intravenous dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Volume of Distribution (Vz) of Midazolam Following Intravenous Dose Administration
113 Liters
Geometric Coefficient of Variation 34.2
105 Liters
Geometric Coefficient of Variation 37.8

PRIMARY outcome

Timeframe: Period 1: Day 1 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 15 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of IV midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: Vss of midazolam following intravenous dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Volume of Distribution at Steady State (Vss) of Midazolam Following Intravenous Dose Administration
78.2 Liters
Geometric Coefficient of Variation 29.4
76.1 Liters
Geometric Coefficient of Variation 31.0

PRIMARY outcome

Timeframe: Period 1: Day 1 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 15 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of IV midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: AUC0-t of midazolam and its metabolite 1-OH-midazolam following intravenous dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Area Under the Concentration-Time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of Midazolam and Its Metabolite 1-OH-midazolam Following Intravenous Dose Administration
Midazolam
8.89 h*ng/mL
Geometric Coefficient of Variation 21.6
10.1 h*ng/mL
Geometric Coefficient of Variation 25.1
PK: Area Under the Concentration-Time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of Midazolam and Its Metabolite 1-OH-midazolam Following Intravenous Dose Administration
Metabolite: 1-OH-medazolam
1.39 h*ng/mL
Geometric Coefficient of Variation 41.7
1.21 h*ng/mL
Geometric Coefficient of Variation 35.7

PRIMARY outcome

Timeframe: Period 1: Day 1 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 15 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of IV midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Here, 'Number analyzed' signifies participants with available data for each specified category.

PK: AUC0-inf of midazolam and its metabolite 1-OH-midazolam following intravenous dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Area Under the Concentration-Time From Time 0 Extrapolated To Infinity (AUC0-inf) of Midazolam and Its Metabolite 1-OH-midazolam Following Intravenous Dose Administration
Midazolam
9.62 h*ng/mL
Geometric Coefficient of Variation 21.4
10.8 h*ng/mL
Geometric Coefficient of Variation 26.5
PK: Area Under the Concentration-Time From Time 0 Extrapolated To Infinity (AUC0-inf) of Midazolam and Its Metabolite 1-OH-midazolam Following Intravenous Dose Administration
Metabolite: 1-OH-medazolam
2.13 h*ng/mL
Geometric Coefficient of Variation 43.0
1.62 h*ng/mL
Geometric Coefficient of Variation 25.2

PRIMARY outcome

Timeframe: Period 1: Day 1 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 15 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of IV midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Here, 'Number analyzed' signifies participants with available data for each specified category.

PK: %AUCextrap of midazolam and its metabolite 1-OH-midazolam following intravenous dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Percentage Extrapolation for AUC0-inf (%AUCextrap) of Midazolam and Its Metabolite 1-OH-midazolam Following Intravenous Dose Administration
Midazolam
7.13 percentage of AUC0-inf
Geometric Coefficient of Variation 37.1
6.44 percentage of AUC0-inf
Geometric Coefficient of Variation 42.0
PK: Percentage Extrapolation for AUC0-inf (%AUCextrap) of Midazolam and Its Metabolite 1-OH-midazolam Following Intravenous Dose Administration
Metabolite: 1-OH-medazolam
19.6 percentage of AUC0-inf
Geometric Coefficient of Variation 24.7
24.7 percentage of AUC0-inf
Geometric Coefficient of Variation 11.5

PRIMARY outcome

Timeframe: Period 1: Day 1 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 15 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of IV midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: Cmax of midazolam and its metabolite 1-OH-midazolam following intravenous dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Maximum Observed Plasma Concentration (Cmax) of Midazolam and Its Metabolite 1-OH-midazolam Following Intravenous Dose Administration
Midazolam
6.96 ng/mL
Geometric Coefficient of Variation 34.8
6.91 ng/mL
Geometric Coefficient of Variation 27.8
PK: Maximum Observed Plasma Concentration (Cmax) of Midazolam and Its Metabolite 1-OH-midazolam Following Intravenous Dose Administration
Metabolite: 1-OH-medazolam
0.512 ng/mL
Geometric Coefficient of Variation 31.7
0.475 ng/mL
Geometric Coefficient of Variation 28.6

PRIMARY outcome

Timeframe: Period 1: Day 1 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 15 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of IV midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: tmax of midazolam and its metabolite 1-OH-midazolam following intravenous dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Time to Maximum Observed Plasma Concentration (Tmax) of Midazolam and Its Metabolite 1-OH-midazolam Following Intravenous Dose Administration
Midazolam
0.0833 hours
Interval 0.0833 to 0.25
0.0833 hours
Interval 0.0833 to 0.0833
PK: Time to Maximum Observed Plasma Concentration (Tmax) of Midazolam and Its Metabolite 1-OH-midazolam Following Intravenous Dose Administration
Metabolite: 1-OH-medazolam
0.750 hours
Interval 0.5 to 1.0
0.750 hours
Interval 0.5 to 1.0

PRIMARY outcome

Timeframe: Period 1: Day 1 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 15 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of IV midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: λz of midazolam and its metabolite 1-OH-midazolam following intravenous dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Apparent Terminal Elimination Rate Constant (λz) of Midazolam and Its Metabolite 1-OH-midazolam Following Intravenous Dose Administration
Midazolam
0.229 1/h
Geometric Coefficient of Variation 37.0
0.221 1/h
Geometric Coefficient of Variation 49.5
PK: Apparent Terminal Elimination Rate Constant (λz) of Midazolam and Its Metabolite 1-OH-midazolam Following Intravenous Dose Administration
Metabolite: 1-OH-medazolam
0.224 1/h
Geometric Coefficient of Variation 55.7
0.282 1/h
Geometric Coefficient of Variation 47.8

PRIMARY outcome

Timeframe: Period 1: Day 1 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose); Period 2: Day 15 (pre-dose, 5 minutes, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post-dose)

Population: All participants who received at least 1 dose of IV midazolam had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: t1/2 of midazolam and its metabolite 1-OH-midazolam following intravenous dose administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Apparent Plasma Terminal Elimination Half-life (t½) of Midazolam and Its Metabolite 1-OH-midazolam Following Intravenous Dose Administration
Midazolam
3.02 hours
Geometric Coefficient of Variation 37.0
3.13 hours
Geometric Coefficient of Variation 49.5
PK: Apparent Plasma Terminal Elimination Half-life (t½) of Midazolam and Its Metabolite 1-OH-midazolam Following Intravenous Dose Administration
Metabolite: 1-OH-medazolam
3.09 hours
Geometric Coefficient of Variation 55.7
2.46 hours
Geometric Coefficient of Variation 47.8

SECONDARY outcome

Timeframe: Period 2: Day 5, Day 14 and Day 15 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, and 24 hours post-dose), Day 17 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 24, 48, 72, and 100 hours post-dose)

Population: The PK population included all participants who received at least 1 dose of pirtobrutinib had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: AUC0-t of Pirtobrutinib was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Area Under the Concentration-Time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of Pirtobrutinib
54800 h*ng/mL
Geometric Coefficient of Variation 20.0
114000 h*ng/mL
Geometric Coefficient of Variation 26.0
115000 h*ng/mL
Geometric Coefficient of Variation 25.0
211000 h*ng/mL
Geometric Coefficient of Variation 33.8

SECONDARY outcome

Timeframe: Period 2: Day 5, Day 14 and Day 15 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, and 24 hours post-dose), Day 17 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 24, 48, 72, and 100 hours post-dose)

Population: The PK population included all participants who received at least 1 dose of pirtobrutinib had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: AUCtau of Pirtobrutinib was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Area Under the Concentration-time Curve During a Dosing Interval (AUCtau) of Pirtobrutinib
55000 h*ng/mL
Geometric Coefficient of Variation 20.0
114000 h*ng/mL
Geometric Coefficient of Variation 26.1
116000 h*ng/mL
Geometric Coefficient of Variation 25.0
118000 h*ng/mL
Geometric Coefficient of Variation 25.5

SECONDARY outcome

Timeframe: Period 2: Day 5, Day 14 and Day 15 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, and 24 hours post-dose), Day 17 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 24, 48, 72, and 100 hours post-dose)

Population: The PK population included all participants who received at least 1 dose of pirtobrutinib had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: Cmax of Pirtobrutinib was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Maximum Observed Plasma Concentration (Cmax) of Pirtobrutinib
4880 ng/mL
Geometric Coefficient of Variation 18.5
8120 ng/mL
Geometric Coefficient of Variation 27.1
8620 ng/mL
Geometric Coefficient of Variation 23.1
8750 ng/mL
Geometric Coefficient of Variation 27.2

SECONDARY outcome

Timeframe: Period 2: 24-hour post-dose on Day 14, Day 15, and Day 17

Population: The PK population included all participants who received at least 1 dose of pirtobrutinib had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: Ctrough of Pirtobrutinib before multiple oral doses administration was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Concentration Observed at the End Of the Dosing Interval (Ctrough) of Pirtobrutinib
3060 ng/mL
Geometric Coefficient of Variation 32.1
3180 ng/mL
Geometric Coefficient of Variation 36.4
3050 ng/mL
Geometric Coefficient of Variation 32.7

SECONDARY outcome

Timeframe: Period 2: Day 5, Day 14 and Day 15 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, and 24 hours post-dose), Day 17 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 24, 48, 72, and 100 hours post-dose)

Population: The PK population included all participants who received at least 1 dose of pirtobrutinib had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: tmax of Pirtobrutinib was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Time To Maximum Observed Plasma Concentration (Tmax) of Pirtobrutinib
2.50 hours
Interval 1.0 to 4.0
3.00 hours
Interval 2.0 to 4.0
3.00 hours
Interval 0.75 to 6.0
3.00 hours
Interval 1.0 to 4.0

SECONDARY outcome

Timeframe: Period 2: Day 14 and Day 15 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, and 24 hours post-dose), Day 17 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 24, 48, 72, and 100 hours post-dose)

Population: The PK population included all participants who received at least 1 dose of pirtobrutinib had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

PK: CL,ss/F of Pirtobrutinib was reported.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
n=15 Participants
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Apparent Systemic Plasma Clearance at Steady State (CL,ss/F) of Pirtobrutinib
1.75 L/h
Geometric Coefficient of Variation 26.1
1.72 L/h
Geometric Coefficient of Variation 25.0
1.69 L/h
Geometric Coefficient of Variation 25.5

SECONDARY outcome

Timeframe: Period 2: Day 5 and Day 14 (pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, and 24 hours post-dose)

Population: The PK population included all participants who received at least 1 dose of pirtobrutinib had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed.

RAUC was ratio of Day 14 AUCtau to Day 5 AUCtau.

Outcome measures

Outcome measures
Measure
Period 1: Oral Midazolam 500 mcg (Day 3)
n=15 Participants
Participants who received a single oral dose of midazolam 500 mcg syrup on Day 3.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by a single oral dose of midazolam 500 mcg syrup on Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg (Day 15)
Participants who received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg (Day 17)
Participants who received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
PK: Accumulation Ratio (RAUC) of Pirtobrutinib
2.08 Ratio
Geometric Coefficient of Variation 15.9

Adverse Events

Period 1: IV Midazolam 250 mcg

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Period 1: Oral Midazolam 500 mcg

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Period 2: Pirtobrutinib 200 mg

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Period 1: IV Midazolam 250 mcg
n=15 participants at risk
Participants received a single IV bolus dose of midazolam 250 mcg solution on Day 1.
Period 1: Oral Midazolam 500 mcg
n=15 participants at risk
Participants received a single oral dose of midazolam 500 mcg syrup on Day 3
Period 2: Pirtobrutinib 200 mg
n=15 participants at risk
Participants received pirtobrutinib 200 mg tablets orally QD from Day 5 through Day 17.
Period 2: Pirtobrutinib 200 mg + IV Midazolam 250 mcg
n=15 participants at risk
Participants received pirtobrutinib 200 mg tablets orally followed by IV bolus dose of midazolam 250 mcg solution on Day 15.
Period 2: Pirtobrutinib 200 mg + Oral Midazolam 500 mcg
n=15 participants at risk
Participants received pirtobrutinib 200 mg tablets orally followed by oral dose of midazolam 500 mcg syrup on Day 17.
Gastrointestinal disorders
Constipation
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
6.7%
1/15 • Number of events 1 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
Gastrointestinal disorders
Flatulence
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
6.7%
1/15 • Number of events 1 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
General disorders
Injection site pain
6.7%
1/15 • Number of events 1 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
Musculoskeletal and connective tissue disorders
Pain in extremity
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
6.7%
1/15 • Number of events 1 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
Renal and urinary disorders
Pollakiuria
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
6.7%
1/15 • Number of events 1 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
Respiratory, thoracic and mediastinal disorders
Nasal congestion
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
6.7%
1/15 • Number of events 1 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
Skin and subcutaneous tissue disorders
Rash
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
6.7%
1/15 • Number of events 1 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.
0.00%
0/15 • From Day 1 up to 7 days post end of treatment (i.e., up to Day 30)
All participants who received at least 1 dose of study drugs (pirtobrutinib, IV midazolam, or oral midazolam). Participants were classified into groups based on actual treatment received.

Additional Information

Chief Medical Officer

Eli Lilly and Company

Phone: 08005455979

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place

Restriction type: GT60