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Pharmacokinetics (PK) Study of Epinephrine Inhalation Aerosol in Healthy Volunteers

Phase I/II Study Epinephrine Inhalation Aerosol USP, an HFA-MDI Clinical Study-B for Assessment of Pharmacokinetics

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01143051
Enrollment
24
Registered
2010-06-14
Start date
2010-01-31
Completion date
2010-06-30
Last updated
2018-09-25

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

Conditions

Asthma

Keywords

Asthma, Pharmacokinetics, Epinephrine, Bronchodilator, metered dose inhaler

Brief summary

This study examines the pharmacokinetic profile of Armstrong's proposed Epinephrine Inhalation Aerosol USP, an HFA-MDI (E004), in healthy male and female adult volunteers. Safety of E004 will also be evaluated, under augmented dose conditions.

Detailed description

This study is a randomized, evaluator-blind, single dose, three-arm, crossover, PK study, to be conducted in \ 18 healthy, male and female, adult volunteers. PK will be studied at two dose strengths (Arm T1 and Arm T2). A currently marketed, non-labeled, Epinephrine CFC-MDI will be used as a Reference Control (Arm C). * At the Screening Visit and the beginning of each Study Visit, each subject will be trained on the correct self-administration of MDI. The following three randomized treatments will be self-administered, at three Study Visits: * Treatment T1: Ten (10) inhalations of the low dose E004(125 mcg/inhalation), totaling 1.25 mg of epinephrine; * Treatment T2: Ten (10) inhalations of the high dose E004 (160 mcg/inhalation), totaling 1.60 mg of epinephrine; * Treatment C: Ten (10) inhalations of Epinephrine CFC-MDI (220 mcg/inhalation, totaling 2.2 mg of epinephrine base equivalent). * PK blood samples will be taken from a vein at scheduled time points. * Safety parameters and adverse drug events, if any, will be monitored and documented at each study visit. An End-of-Study (EOS) safety evaluation will be conducted.

Interventions

Single dose 220 mcg/inhalation, 10 inhalations

Sponsors

Amphastar Pharmaceuticals, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 30 Years
Healthy volunteers
Yes

Inclusion criteria

* Generally healthy, male and female adults, 18-30 yrs of age at Screening; * Having no clinically significant respiratory, cardiovascular and other systemic or organic illnesses, per investigator discretion; * Women of child-bearing potential must be non-pregnant, non-lactating, and practicing a clinically acceptable form of birth control; * Having properly consented and satisfied all other inclusion/

Exclusion criteria

as required for this protocol. * Other criteria apply.

Design outcomes

Primary

MeasureTime frameDescription
Baseline Concentration (C0) of Labeled Epinephrine Total Epinephrine0 to 30 minutes prior to dosingPatient PK blood samples were taken from a vein in a hand or arm via indwelling heparin-anticoagulated IV catheters, or by venipunctures at Baseline (prior to dosing) in each treatment period following a specified washout period (3-14 days), and were analyzed using an established analysis method. Baseline concentration (C0) is the concentration of epinephrine measured in the plasma at this time point.
Area Under the Curve From Time Zero to 6 Hours Post-dose (AUC[0-6])Pre-dose to 6 hours post-dosePatient PK blood samples were taken from a vein in a hand or arm via indwelling heparin-anticoagulated IV catheters, or by venipunctures at 0 (baseline), 5, 15, 30, 45, 60, 90, 120, 180, 240, and 360 minutes post-dose in each treatment period and were analyzed using an established analysis method. Area under the curve from time zero to 6 hours post-dose (AUC\[0-6\]) was calculated using the trapezoidal rule.
Peak Concentration (Cmax) for Total Epinephrine From Time Zero to 6 Hours Post-dosePre-dose to 6 hours post-dosePatient PK blood samples were taken from a vein in a hand or arm via indwelling heparin-anticoagulated IV catheters, or by venipunctures at 0 (baseline), 5, 15, 30, 45, 60, 90, 120, 180, 240, and 360 minutes post-dose in each treatment period and were analyzed using an established analysis method. Peak (maximum) concentration (Cmax) is the highest concentration of epinephrine measured in plasma during the treatment period.
Time to Reach Peak Concentration (Tmax) for Total EpinephrinePre-dose to 6 hours post-dosePatient PK blood samples were taken from a vein in a hand or arm via indwelling heparin-anticoagulated IV catheters, or by venipunctures at 0 (baseline), 5, 15, 30, 45, 60, 90, 120, 180, 240, and 360 minutes post-dose in each treatment period and were analyzed using an established analysis method. tmax is the amount of time it takes for epinephrine to reach peak concentration in plasma during the treatment period.
Half-life (t1/2) for Total EpinephrinePre-dose to 6 hours post-dosePatient PK blood samples were taken from a vein in a hand or arm via indwelling heparin-anticoagulated IV catheters, or by venipunctures at 0 (baseline), 5, 15, 30, 45, 60, 90, 120, 180, 240, and 360 minutes post-dose in each treatment period and were analyzed using an established analysis method. Half-life (t1/2) is the amount of time it takes for epinephrine decrease to half the peak concentration in plasma during the treatment period.
Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-dosePre-dose to 6 hours post-dosePatient PK blood samples were taken from a vein in a hand or arm via indwelling heparin-anticoagulated IV catheters, or by venipunctures at 0 (baseline), 5, 15, 30, 45, 60, 90, 120, 180, 240, and 360 minutes post-dose in each treatment period and were analyzed using an established analysis method.

Secondary

MeasureTime frameDescription
Serum Potassium LevelsPre-dose (baseline) to 360 minutes post-doseBlood samples used to measure subject serum glucose and potassium levels were collected prior to study drug dosing (baseline) and up to 360 minutes post-dose.
Hand Tremor ScoresPre-dose (baseline) to 360 minutes post-doseSubjects evaluated hand tremor experiences using a scale from 0 to 3 (0: No tremor; 1: Mild, perceivable; 2: Moderate, observable; and 3: Severe, interfering with hand activities). Hand tremors were evaluated prior to study drug dosing (baseline) and up to 360 minutes post-dose.
Vital Signs: Systolic Blood Pressure (SBP)Pre-dose (baseline) to 360 minutes post-doseSubject vital signs, i.e., blood pressure and heart rate, were measured prior to study drug dosing (baseline) and up to 360 minutes after dosing during the study visit.
Number of Subjects With Significant Changes in Laboratory TestsApproximately 6 weeksLaboratory tests (CBC, serum comprehensive metabolic panel, urinalysis, and urinary pregnancy test for women of childbearing potential) were performed as a part of Screening and End-of-Study (EOS) procedures. This outcome is a count of the number of subjects that showed a clinically significant change in the EOS laboratory tests compared to the Screening Visit.
Number of Subjects With Significant Changes in Physical ExaminationApproximately 6 weeksPhysical examinations were performed as a part of Screening and End-of-Study (EOS) procedures. This outcome is a count of the number of subjects that showed a clinically significant change in the EOS physical examination compared to the Screening Visit.
Vital Signs: Diastolic Blood Pressure (DBP)Pre-dose (baseline) to 360 minutes post-doseSubject vital signs, i.e., blood pressure and heart rate, were measured prior to study drug dosing (baseline) and up to 360 minutes after dosing during the study visit.
Vital Signs: Heart Rate (HR)Pre-dose (baseline) to 360 minutes post-doseSubject vital signs, i.e., blood pressure and heart rate, were measured prior to study drug dosing (baseline) and up to 360 minutes after dosing during the study visit.
ECG: QT IntervalPre-dose (baseline) to 360 minutes post-doseSubject QT and QTc Intervals were recorded using a 12-Lead ECG prior to study drug dosing (baseline) and up to 360 minutes after dosing during the study visit.
ECG: QTc IntervalPre-dose (baseline) to 360 minutes post-doseSubject QT and QTc Intervals were recorded using a 12-Lead ECG prior to study drug dosing (baseline) and up to 360 minutes after dosing during the study visit.
Serum Glucose LevelsPre-dose (baseline) to 360 minutes post-doseBlood samples used to measure subject serum glucose and potassium levels were collected prior to study drug dosing (baseline) and up to 360 minutes post-dose.

Countries

United States

Participant flow

Recruitment details

Participants were recruited from a specialty clinic in Cypress, CA between 04/29/2010 and 05/27/2010

Pre-assignment details

A total of 38 subjects were screened, 24 subjects passed screening, consented and were randomized for participation in the study. The IRB approval date was 04/29/2010, the last subject was screened on 05/27/2010.

Participants by arm

ArmCount
C, T1, T2
Subjects received one of the three treatments during each study visit, separated by a washout period of 3-14 days. Visit 1: Treatment C: Ten (10) inhalations of Epinephrine CFC-MDI (220 mcg/inhalation), totaling 2.20 mg of epinephrine, in 5 min; Visit 2: Treatment T1: Ten (10) inhalations of the low dose E004 (125 mcg/inhalation), totaling 1.25 mg of epinephrine, in 5 min; Visit 3: Treatment T2: Ten (10) inhalations of the high dose E004 (160 mcg/inhalation), totaling 1.60 mg of epinephrine, in 5 min.
4
C, T2, T1
Subjects received one of the three treatments during each study visit, separated by a washout period of 3-14 days. Visit 1: Treatment C: Ten (10) inhalations of Epinephrine CFC-MDI (220 mcg/inhalation), totaling 2.20 mg of epinephrine, in 5 min; Visit 2: Treatment T2: Ten (10) inhalations of the high dose E004 (160 mcg/inhalation), totaling 1.60 mg of epinephrine, in 5 min; Visit 3: Treatment T1: Ten (10) inhalations of the low dose E004 (125 mcg/inhalation), totaling 1.25 mg of epinephrine, in 5 min.
4
T1, C, T2
Subjects received one of the three treatments during each study visit, separated by a washout period of 3-14 days. Visit 1: Treatment T1: Ten (10) inhalations of the low dose E004 (125 mcg/inhalation), totaling 1.25 mg of epinephrine, in 5 min; Visit 2: Treatment C: Ten (10) inhalations of Epinephrine CFC-MDI (220 mcg/inhalation), totaling 2.20 mg of epinephrine, in 5 min; Visit 3: Treatment T2: Ten (10) inhalations of the high dose E004 (160 mcg/inhalation), totaling 1.60 mg of epinephrine, in 5 min.
4
T1, T2, C
Subjects received one of the three treatments during each study visit, separated by a washout period of 3-14 days. Visit 1: Treatment T1: Ten (10) inhalations of the low dose E004 (125 mcg/inhalation), totaling 1.25 mg of epinephrine, in 5 min; Visit 2: Treatment T2: Ten (10) inhalations of the high dose E004 (160 mcg/inhalation), totaling 1.60 mg of epinephrine, in 5 min; Visit 3: Treatment C: Ten (10) inhalations of Epinephrine CFC-MDI (220 mcg/inhalation), totaling 2.20 mg of epinephrine, in 5 min.
4
T2, C, T1
Subjects received one of the three treatments during each study visit, separated by a washout period of 3-14 days. Visit 1: Treatment T2: Ten (10) inhalations of the high dose E004 (160 mcg/inhalation), totaling 1.60 mg of epinephrine, in 5 min; Visit 2: Treatment C: Ten (10) inhalations of Epinephrine CFC-MDI (220 mcg/inhalation), totaling 2.20 mg of epinephrine, in 5 min; Visit 3: Treatment T1: Ten (10) inhalations of the low dose E004 (125 mcg/inhalation), totaling 1.25 mg of epinephrine, in 5 min.
4
T2, T1, C
Subjects received one of the three treatments during each study visit, separated by a washout period of 3-14 days. Visit 1: Treatment T2: Ten (10) inhalations of the high dose E004 (160 mcg/inhalation), totaling 1.60 mg of epinephrine, in 5 min; Visit 2: Treatment T1: Ten (10) inhalations of the low dose E004 (125 mcg/inhalation), totaling 1.25 mg of epinephrine, in 5 min; Visit 3 Treatment C: Ten (10) inhalations of Epinephrine CFC-MDI (220 mcg/inhalation), totaling 2.20 mg of epinephrine, in 5 min.
4
Total24

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
3-14 Day WashoutWithdrawal by Subject001000

Baseline characteristics

CharacteristicC, T2, T1T1, C, T2T1, T2, CC, T1, T2T2, C, T1T2, T1, CTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
4 Participants4 Participants4 Participants4 Participants4 Participants4 Participants24 Participants
Age, Continuous25.3 years
STANDARD_DEVIATION 4.27
24.0 years
STANDARD_DEVIATION 3.37
21.8 years
STANDARD_DEVIATION 1.71
24.0 years
STANDARD_DEVIATION 2.94
25.3 years
STANDARD_DEVIATION 0.5
22.0 years
STANDARD_DEVIATION 3.56
23.7 years
STANDARD_DEVIATION 3.01
Region of Enrollment
United States
4 participants4 participants4 participants4 participants4 participants4 participants24 participants
Sex: Female, Male
Female
2 Participants1 Participants2 Participants1 Participants1 Participants2 Participants9 Participants
Sex: Female, Male
Male
2 Participants3 Participants2 Participants3 Participants3 Participants2 Participants15 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
1 / 241 / 231 / 22
serious
Total, serious adverse events
0 / 240 / 230 / 22

Outcome results

Primary

Area Under the Curve From Time Zero to 6 Hours Post-dose (AUC[0-6])

Patient PK blood samples were taken from a vein in a hand or arm via indwelling heparin-anticoagulated IV catheters, or by venipunctures at 0 (baseline), 5, 15, 30, 45, 60, 90, 120, 180, 240, and 360 minutes post-dose in each treatment period and were analyzed using an established analysis method. Area under the curve from time zero to 6 hours post-dose (AUC\[0-6\]) was calculated using the trapezoidal rule.

Time frame: Pre-dose to 6 hours post-dose

Population: Patients who: 1) have taken the valid pre-dose baseline PK sample 2) have correctly taken the randomized study-drug treatment 3) have at least four of the five post-dose PK measurements between 5 and 60 min post-dose available and 4) have a minimum of eight of the ten post-dose PK measurements for the entire 6 hour post-dose PK sampling period.

ArmMeasureValue (MEAN)Dispersion
Treatment T1Area Under the Curve From Time Zero to 6 Hours Post-dose (AUC[0-6])7938 pg*min/mLStandard Deviation 5023
Treatment T2Area Under the Curve From Time Zero to 6 Hours Post-dose (AUC[0-6])9438 pg*min/mLStandard Deviation 4819
Treatment CArea Under the Curve From Time Zero to 6 Hours Post-dose (AUC[0-6])7218 pg*min/mLStandard Deviation 6489
Primary

Baseline Concentration (C0) of Labeled Epinephrine Total Epinephrine

Patient PK blood samples were taken from a vein in a hand or arm via indwelling heparin-anticoagulated IV catheters, or by venipunctures at Baseline (prior to dosing) in each treatment period following a specified washout period (3-14 days), and were analyzed using an established analysis method. Baseline concentration (C0) is the concentration of epinephrine measured in the plasma at this time point.

Time frame: 0 to 30 minutes prior to dosing

Population: Patients who: 1) have taken the valid pre-dose baseline PK sample 2) have correctly taken the randomized study-drug treatment 3) have at least four of the five post-dose PK measurements between 5 and 60 min post-dose available and 4) have a minimum of eight of the ten post-dose PK measurements for the entire 6 hour post-dose PK sampling period.

ArmMeasureValue (MEAN)Dispersion
Treatment T1Baseline Concentration (C0) of Labeled Epinephrine Total Epinephrine9.3 pg/mLStandard Deviation 17.7
Treatment T2Baseline Concentration (C0) of Labeled Epinephrine Total Epinephrine8.9 pg/mLStandard Deviation 15.8
Treatment CBaseline Concentration (C0) of Labeled Epinephrine Total Epinephrine7.8 pg/mLStandard Deviation 21.4
Primary

Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-dose

Patient PK blood samples were taken from a vein in a hand or arm via indwelling heparin-anticoagulated IV catheters, or by venipunctures at 0 (baseline), 5, 15, 30, 45, 60, 90, 120, 180, 240, and 360 minutes post-dose in each treatment period and were analyzed using an established analysis method.

Time frame: Pre-dose to 6 hours post-dose

Population: Patients who : 1) have taken the valid pre-dose baseline PK sample 2) have correctly taken the randomized study-drug treatment 3) have at least 4 of the 5 post-dose PK measurements between 5 and 60 minutes post-dose available and 4) have a min of 8 of the 10 post-dose PK measurements for the entire 6 hour post-dose PK sampling period.

ArmMeasureGroupValue (MEAN)Dispersion
Treatment T1Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 120 min post-dose8.7 pg/mLStandard Deviation 12.8
Treatment T1Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 45 min post-dose8.6 pg/mLStandard Deviation 14.4
Treatment T1Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 240 min post-dose12.9 pg/mLStandard Deviation 20.4
Treatment T1Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 90 min post-dose5.7 pg/mLStandard Deviation 11.6
Treatment T1Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 60 min post-dose7.6 pg/mLStandard Deviation 14.7
Treatment T1Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 0 min (Baseline)9.3 pg/mLStandard Deviation 17.7
Treatment T1Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 15 min post-dose48.9 pg/mLStandard Deviation 33.7
Treatment T1Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 5 min post-dose339.6 pg/mLStandard Deviation 295.1
Treatment T1Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 180 min post-dose12.0 pg/mLStandard Deviation 20.2
Treatment T1Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 30 min post-dose12.7 pg/mLStandard Deviation 18.8
Treatment T1Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 360 min post-dose31.1 pg/mLStandard Deviation 24
Treatment T2Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 60 min post-dose14.5 pg/mLStandard Deviation 17.3
Treatment T2Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 0 min (Baseline)8.9 pg/mLStandard Deviation 15.8
Treatment T2Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 5 min post-dose442.4 pg/mLStandard Deviation 330.8
Treatment T2Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 15 min post-dose62.4 pg/mLStandard Deviation 42.5
Treatment T2Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 30 min post-dose17.4 pg/mLStandard Deviation 18.3
Treatment T2Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 45 min post-dose13.0 pg/mLStandard Deviation 17.2
Treatment T2Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 90 min post-dose13.7 pg/mLStandard Deviation 14.8
Treatment T2Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 120 min post-dose15.5 pg/mLStandard Deviation 19.7
Treatment T2Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 180 min post-dose10.4 pg/mLStandard Deviation 15.2
Treatment T2Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 240 min post-dose11.5 pg/mLStandard Deviation 14.9
Treatment T2Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 360 min post-dose29.4 pg/mLStandard Deviation 23
Treatment CConcentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 240 min post-dose9.8 pg/mLStandard Deviation 18.1
Treatment CConcentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 120 min post-dose13.1 pg/mLStandard Deviation 17.6
Treatment CConcentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 15 min post-dose38.5 pg/mLStandard Deviation 21.2
Treatment CConcentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 0 min (Baseline)7.8 pg/mLStandard Deviation 21.4
Treatment CConcentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 180 min post-dose8.4 pg/mLStandard Deviation 15.2
Treatment CConcentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 5 min post-dose130.2 pg/mLStandard Deviation 101.8
Treatment CConcentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 60 min post-dose18.0 pg/mLStandard Deviation 18.6
Treatment CConcentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 45 min post-dose20.9 pg/mLStandard Deviation 18.6
Treatment CConcentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 360 min post-dose38.3 pg/mLStandard Deviation 40.8
Treatment CConcentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 90 min post-dose16.7 pg/mLStandard Deviation 16.6
Treatment CConcentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-doseTotal Epinephrine, 30 min post-dose16.8 pg/mLStandard Deviation 17.6
Primary

Half-life (t1/2) for Total Epinephrine

Patient PK blood samples were taken from a vein in a hand or arm via indwelling heparin-anticoagulated IV catheters, or by venipunctures at 0 (baseline), 5, 15, 30, 45, 60, 90, 120, 180, 240, and 360 minutes post-dose in each treatment period and were analyzed using an established analysis method. Half-life (t1/2) is the amount of time it takes for epinephrine decrease to half the peak concentration in plasma during the treatment period.

Time frame: Pre-dose to 6 hours post-dose

Population: Patients who: 1) have taken the valid pre-dose baseline PK sample 2) have correctly taken the randomized study-drug treatment 3) have at least 4 of the 5 post-dose PK measurements between 5 and 60 min post-dose available; and 4) have a min of 8 of the 10 post-dose PK measurements for the entire 6 hour post-dose PK sampling period.

ArmMeasureValue (MEAN)Dispersion
Treatment T1Half-life (t1/2) for Total Epinephrine125.9 minFull Range 183.3
Treatment T2Half-life (t1/2) for Total Epinephrine158.8 minFull Range 238
Treatment CHalf-life (t1/2) for Total Epinephrine237.3 minFull Range 175.2
Primary

Peak Concentration (Cmax) for Total Epinephrine From Time Zero to 6 Hours Post-dose

Patient PK blood samples were taken from a vein in a hand or arm via indwelling heparin-anticoagulated IV catheters, or by venipunctures at 0 (baseline), 5, 15, 30, 45, 60, 90, 120, 180, 240, and 360 minutes post-dose in each treatment period and were analyzed using an established analysis method. Peak (maximum) concentration (Cmax) is the highest concentration of epinephrine measured in plasma during the treatment period.

Time frame: Pre-dose to 6 hours post-dose

Population: Patients who: 1) have taken the valid pre-dose baseline PK sample 2) have correctly taken the randomized study-drug treatment 3) have at least four of the five post-dose PK measurements between 5 and 60 min post-dose available and 4) have a minimum of eight of the ten post-dose PK measurements for the entire 6 hour post-dose PK sampling period.

ArmMeasureValue (MEAN)Dispersion
Treatment T1Peak Concentration (Cmax) for Total Epinephrine From Time Zero to 6 Hours Post-dose340 pg/mLStandard Deviation 294
Treatment T2Peak Concentration (Cmax) for Total Epinephrine From Time Zero to 6 Hours Post-dose444 pg/mLStandard Deviation 328
Treatment CPeak Concentration (Cmax) for Total Epinephrine From Time Zero to 6 Hours Post-dose139 pg/mLStandard Deviation 98
Primary

Time to Reach Peak Concentration (Tmax) for Total Epinephrine

Patient PK blood samples were taken from a vein in a hand or arm via indwelling heparin-anticoagulated IV catheters, or by venipunctures at 0 (baseline), 5, 15, 30, 45, 60, 90, 120, 180, 240, and 360 minutes post-dose in each treatment period and were analyzed using an established analysis method. tmax is the amount of time it takes for epinephrine to reach peak concentration in plasma during the treatment period.

Time frame: Pre-dose to 6 hours post-dose

Population: Patients who : 1) have taken the valid pre-dose baseline PK sample 2) have correctly taken the randomized study-drug treatment 3) have at least four of the five post-dose PK measurements between 5 and 60 min post-dose available and 4) have a minimum of eight of the ten post-dose PK measurements for the entire 6 hour post-dose PK sampling period.

ArmMeasureValue (MEAN)Dispersion
Treatment T1Time to Reach Peak Concentration (Tmax) for Total Epinephrine34.6 minStandard Deviation 100.2
Treatment T2Time to Reach Peak Concentration (Tmax) for Total Epinephrine37.0 minStandard Deviation 104.5
Treatment CTime to Reach Peak Concentration (Tmax) for Total Epinephrine38.0 minStandard Deviation 104.3
Secondary

ECG: QTc Interval

Subject QT and QTc Intervals were recorded using a 12-Lead ECG prior to study drug dosing (baseline) and up to 360 minutes after dosing during the study visit.

Time frame: Pre-dose (baseline) to 360 minutes post-dose

Population: Subjects who have taken any amount of study drug treatment.

ArmMeasureGroupValue (MEAN)Dispersion
Treatment T1ECG: QTc IntervalPre-dose (Baseline)407 msecStandard Deviation 16.9
Treatment T1ECG: QTc Interval30 min post-dose408 msecStandard Deviation 15.2
Treatment T1ECG: QTc Interval90 min post-dose401 msecStandard Deviation 16.9
Treatment T1ECG: QTc Interval360 min post-dose403 msecStandard Deviation 18.2
Treatment T2ECG: QTc Interval360 min post-dose403 msecStandard Deviation 17.9
Treatment T2ECG: QTc IntervalPre-dose (Baseline)407 msecStandard Deviation 20
Treatment T2ECG: QTc Interval90 min post-dose401 msecStandard Deviation 18.1
Treatment T2ECG: QTc Interval30 min post-dose411 msecStandard Deviation 19.4
Treatment CECG: QTc Interval360 min post-dose402 msecStandard Deviation 15.7
Treatment CECG: QTc Interval30 min post-dose412 msecStandard Deviation 22.3
Treatment CECG: QTc Interval90 min post-dose403 msecStandard Deviation 14.1
Treatment CECG: QTc IntervalPre-dose (Baseline)403 msecStandard Deviation 16.2
Secondary

ECG: QT Interval

Subject QT and QTc Intervals were recorded using a 12-Lead ECG prior to study drug dosing (baseline) and up to 360 minutes after dosing during the study visit.

Time frame: Pre-dose (baseline) to 360 minutes post-dose

Population: Subjects who have taken any amount of study drug treatment.

ArmMeasureGroupValue (MEAN)Dispersion
Treatment T1ECG: QT IntervalPre-dose (Baseline)416 msecStandard Deviation 33.6
Treatment T1ECG: QT Interval30 min post-dose404 msecStandard Deviation 38.6
Treatment T1ECG: QT Interval90 min post-dose399 msecStandard Deviation 34.3
Treatment T1ECG: QT Interval360 min post-dose399 msecStandard Deviation 41.5
Treatment T2ECG: QT Interval360 min post-dose400 msecStandard Deviation 33.1
Treatment T2ECG: QT IntervalPre-dose (Baseline)407 msecStandard Deviation 30.1
Treatment T2ECG: QT Interval90 min post-dose401 msecStandard Deviation 32.9
Treatment T2ECG: QT Interval30 min post-dose405 msecStandard Deviation 32.8
Treatment CECG: QT Interval360 min post-dose400 msecStandard Deviation 37.7
Treatment CECG: QT Interval30 min post-dose413 msecStandard Deviation 44.8
Treatment CECG: QT Interval90 min post-dose407 msecStandard Deviation 41.3
Treatment CECG: QT IntervalPre-dose (Baseline)423 msecStandard Deviation 44.1
Secondary

Hand Tremor Scores

Subjects evaluated hand tremor experiences using a scale from 0 to 3 (0: No tremor; 1: Mild, perceivable; 2: Moderate, observable; and 3: Severe, interfering with hand activities). Hand tremors were evaluated prior to study drug dosing (baseline) and up to 360 minutes post-dose.

Time frame: Pre-dose (baseline) to 360 minutes post-dose

Population: Subjects who have taken any amount of study drug treatment.

ArmMeasureGroupValue (MEAN)Dispersion
Treatment T1Hand Tremor ScoresPre-dose (Baseline)0.0 score on a scaleStandard Deviation 0
Treatment T1Hand Tremor Scores10 min post-dose0.1 score on a scaleStandard Deviation 0.3
Treatment T1Hand Tremor Scores60 min post-dose0.0 score on a scaleStandard Deviation 0
Treatment T1Hand Tremor Scores360 min post-dose0.0 score on a scaleStandard Deviation 0
Treatment T2Hand Tremor Scores360 min post-dose0.0 score on a scaleStandard Deviation 0
Treatment T2Hand Tremor ScoresPre-dose (Baseline)0.0 score on a scaleStandard Deviation 0
Treatment T2Hand Tremor Scores60 min post-dose0.0 score on a scaleStandard Deviation 0
Treatment T2Hand Tremor Scores10 min post-dose0.2 score on a scaleStandard Deviation 0.4
Treatment CHand Tremor Scores360 min post-dose0.0 score on a scaleStandard Deviation 0.2
Treatment CHand Tremor Scores10 min post-dose0.1 score on a scaleStandard Deviation 0.4
Treatment CHand Tremor Scores60 min post-dose0.0 score on a scaleStandard Deviation 0.2
Treatment CHand Tremor ScoresPre-dose (Baseline)0.0 score on a scaleStandard Deviation 0
Secondary

Number of Subjects With Significant Changes in Laboratory Tests

Laboratory tests (CBC, serum comprehensive metabolic panel, urinalysis, and urinary pregnancy test for women of childbearing potential) were performed as a part of Screening and End-of-Study (EOS) procedures. This outcome is a count of the number of subjects that showed a clinically significant change in the EOS laboratory tests compared to the Screening Visit.

Time frame: Approximately 6 weeks

Population: Subjects who have taken any amount of study drug treatment. The Arm/Group is presented as one group because subjects would have received all 3 different study drug treatments prior to EOS due to the crossover study design.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment T1Number of Subjects With Significant Changes in Laboratory Tests0 Participants
Secondary

Number of Subjects With Significant Changes in Physical Examination

Physical examinations were performed as a part of Screening and End-of-Study (EOS) procedures. This outcome is a count of the number of subjects that showed a clinically significant change in the EOS physical examination compared to the Screening Visit.

Time frame: Approximately 6 weeks

Population: Subjects who have taken any amount of study drug treatment. The Arm/Group is presented as one group because subjects would have received all 3 different study drug treatments prior to EOS due to the crossover study design.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment T1Number of Subjects With Significant Changes in Physical Examination0 Participants
Secondary

Serum Glucose Levels

Blood samples used to measure subject serum glucose and potassium levels were collected prior to study drug dosing (baseline) and up to 360 minutes post-dose.

Time frame: Pre-dose (baseline) to 360 minutes post-dose

Population: Subjects who have taken any amount of study drug treatment.

ArmMeasureGroupValue (MEAN)Dispersion
Treatment T1Serum Glucose LevelsPre-dose (Baseline)83 mg/dLStandard Deviation 6.9
Treatment T1Serum Glucose Levels15 min post-dose101 mg/dLStandard Deviation 17
Treatment T1Serum Glucose Levels30 min post-dose94 mg/dLStandard Deviation 16.4
Treatment T1Serum Glucose Levels60 min post-dose86 mg/dLStandard Deviation 8.9
Treatment T1Serum Glucose Levels120 min post-dose81 mg/dLStandard Deviation 6.8
Treatment T1Serum Glucose Levels360 min post-dose82 mg/dLStandard Deviation 7.9
Treatment T2Serum Glucose Levels360 min post-dose82 mg/dLStandard Deviation 9.4
Treatment T2Serum Glucose LevelsPre-dose (Baseline)83 mg/dLStandard Deviation 9.1
Treatment T2Serum Glucose Levels60 min post-dose86 mg/dLStandard Deviation 10.8
Treatment T2Serum Glucose Levels120 min post-dose82 mg/dLStandard Deviation 6.1
Treatment T2Serum Glucose Levels15 min post-dose105 mg/dLStandard Deviation 11.6
Treatment T2Serum Glucose Levels30 min post-dose99 mg/dLStandard Deviation 12.1
Treatment CSerum Glucose Levels15 min post-dose96 mg/dLStandard Deviation 11
Treatment CSerum Glucose Levels30 min post-dose98 mg/dLStandard Deviation 10.7
Treatment CSerum Glucose Levels360 min post-dose80 mg/dLStandard Deviation 7.1
Treatment CSerum Glucose Levels60 min post-dose94 mg/dLStandard Deviation 12.5
Treatment CSerum Glucose LevelsPre-dose (Baseline)84 mg/dLStandard Deviation 6.2
Treatment CSerum Glucose Levels120 min post-dose83 mg/dLStandard Deviation 5.3
Secondary

Serum Potassium Levels

Blood samples used to measure subject serum glucose and potassium levels were collected prior to study drug dosing (baseline) and up to 360 minutes post-dose.

Time frame: Pre-dose (baseline) to 360 minutes post-dose

Population: Subjects who have taken any amount of study drug treatment.

ArmMeasureGroupValue (MEAN)Dispersion
Treatment T1Serum Potassium LevelsPre-dose (Baseline)4 mmol/LStandard Deviation 0.2
Treatment T1Serum Potassium Levels15 min post-dose4 mmol/LStandard Deviation 0.3
Treatment T1Serum Potassium Levels30 min post-dose4 mmol/LStandard Deviation 0.5
Treatment T1Serum Potassium Levels60 min post-dose4 mmol/LStandard Deviation 0.2
Treatment T1Serum Potassium Levels120 min post-dose4 mmol/LStandard Deviation 0.3
Treatment T1Serum Potassium Levels360 min post-dose4 mmol/LStandard Deviation 0.3
Treatment T2Serum Potassium Levels360 min post-dose4 mmol/LStandard Deviation 0.3
Treatment T2Serum Potassium LevelsPre-dose (Baseline)4 mmol/LStandard Deviation 0.3
Treatment T2Serum Potassium Levels60 min post-dose4 mmol/LStandard Deviation 0.3
Treatment T2Serum Potassium Levels120 min post-dose4 mmol/LStandard Deviation 0.3
Treatment T2Serum Potassium Levels15 min post-dose4 mmol/LStandard Deviation 0.3
Treatment T2Serum Potassium Levels30 min post-dose4 mmol/LStandard Deviation 0.3
Treatment CSerum Potassium Levels15 min post-dose4 mmol/LStandard Deviation 0.3
Treatment CSerum Potassium Levels30 min post-dose4 mmol/LStandard Deviation 0.3
Treatment CSerum Potassium Levels360 min post-dose4 mmol/LStandard Deviation 0.2
Treatment CSerum Potassium Levels60 min post-dose4 mmol/LStandard Deviation 0.2
Treatment CSerum Potassium LevelsPre-dose (Baseline)4 mmol/LStandard Deviation 0.2
Treatment CSerum Potassium Levels120 min post-dose4 mmol/LStandard Deviation 0.3
Secondary

Vital Signs: Diastolic Blood Pressure (DBP)

Subject vital signs, i.e., blood pressure and heart rate, were measured prior to study drug dosing (baseline) and up to 360 minutes after dosing during the study visit.

Time frame: Pre-dose (baseline) to 360 minutes post-dose

Population: Subjects who have taken any amount of study drug treatment.

ArmMeasureGroupValue (MEAN)Dispersion
Treatment T1Vital Signs: Diastolic Blood Pressure (DBP)10 min post-dose63 mmHgStandard Deviation 10.1
Treatment T1Vital Signs: Diastolic Blood Pressure (DBP)120 min post-dose61 mmHgStandard Deviation 9.8
Treatment T1Vital Signs: Diastolic Blood Pressure (DBP)60 min post-dose63 mmHgStandard Deviation 10.8
Treatment T1Vital Signs: Diastolic Blood Pressure (DBP)Pre-dose (Baseline)62 mmHgStandard Deviation 9.3
Treatment T1Vital Signs: Diastolic Blood Pressure (DBP)360 min post-dose62 mmHgStandard Deviation 8.8
Treatment T1Vital Signs: Diastolic Blood Pressure (DBP)180 min post-dose62 mmHgStandard Deviation 8.3
Treatment T1Vital Signs: Diastolic Blood Pressure (DBP)30 min post-dose64 mmHgStandard Deviation 11.2
Treatment T2Vital Signs: Diastolic Blood Pressure (DBP)60 min post-dose64 mmHgStandard Deviation 10.4
Treatment T2Vital Signs: Diastolic Blood Pressure (DBP)Pre-dose (Baseline)61 mmHgStandard Deviation 11.2
Treatment T2Vital Signs: Diastolic Blood Pressure (DBP)10 min post-dose64 mmHgStandard Deviation 10
Treatment T2Vital Signs: Diastolic Blood Pressure (DBP)30 min post-dose64 mmHgStandard Deviation 9.2
Treatment T2Vital Signs: Diastolic Blood Pressure (DBP)120 min post-dose63 mmHgStandard Deviation 11.9
Treatment T2Vital Signs: Diastolic Blood Pressure (DBP)180 min post-dose60 mmHgStandard Deviation 9.5
Treatment T2Vital Signs: Diastolic Blood Pressure (DBP)360 min post-dose62 mmHgStandard Deviation 10.1
Treatment CVital Signs: Diastolic Blood Pressure (DBP)120 min post-dose62 mmHgStandard Deviation 10.6
Treatment CVital Signs: Diastolic Blood Pressure (DBP)10 min post-dose65 mmHgStandard Deviation 10.2
Treatment CVital Signs: Diastolic Blood Pressure (DBP)360 min post-dose62 mmHgStandard Deviation 8
Treatment CVital Signs: Diastolic Blood Pressure (DBP)180 min post-dose59 mmHgStandard Deviation 7.5
Treatment CVital Signs: Diastolic Blood Pressure (DBP)60 min post-dose63 mmHgStandard Deviation 8.8
Treatment CVital Signs: Diastolic Blood Pressure (DBP)30 min post-dose65 mmHgStandard Deviation 9.5
Treatment CVital Signs: Diastolic Blood Pressure (DBP)Pre-dose (Baseline)61 mmHgStandard Deviation 10.8
Secondary

Vital Signs: Heart Rate (HR)

Subject vital signs, i.e., blood pressure and heart rate, were measured prior to study drug dosing (baseline) and up to 360 minutes after dosing during the study visit.

Time frame: Pre-dose (baseline) to 360 minutes post-dose

Population: Subjects who have taken any amount of study drug treatment.

ArmMeasureGroupValue (MEAN)Dispersion
Treatment T1Vital Signs: Heart Rate (HR)10 min post-dose67 beats per minuteStandard Deviation 14
Treatment T1Vital Signs: Heart Rate (HR)120 min post-dose60 beats per minuteStandard Deviation 10.1
Treatment T1Vital Signs: Heart Rate (HR)60 min post-dose67 beats per minuteStandard Deviation 12.9
Treatment T1Vital Signs: Heart Rate (HR)Pre-dose (Baseline)60 beats per minuteStandard Deviation 10.1
Treatment T1Vital Signs: Heart Rate (HR)360 min post-dose64 beats per minuteStandard Deviation 8.7
Treatment T1Vital Signs: Heart Rate (HR)180 min post-dose66 beats per minuteStandard Deviation 11.1
Treatment T1Vital Signs: Heart Rate (HR)30 min post-dose63 beats per minuteStandard Deviation 14.2
Treatment T2Vital Signs: Heart Rate (HR)60 min post-dose67 beats per minuteStandard Deviation 14.4
Treatment T2Vital Signs: Heart Rate (HR)Pre-dose (Baseline)62 beats per minuteStandard Deviation 12.2
Treatment T2Vital Signs: Heart Rate (HR)10 min post-dose69 beats per minuteStandard Deviation 12.2
Treatment T2Vital Signs: Heart Rate (HR)30 min post-dose64 beats per minuteStandard Deviation 9.8
Treatment T2Vital Signs: Heart Rate (HR)120 min post-dose60 beats per minuteStandard Deviation 7.1
Treatment T2Vital Signs: Heart Rate (HR)180 min post-dose66 beats per minuteStandard Deviation 10.5
Treatment T2Vital Signs: Heart Rate (HR)360 min post-dose64 beats per minuteStandard Deviation 10.4
Treatment CVital Signs: Heart Rate (HR)120 min post-dose58 beats per minuteStandard Deviation 9.4
Treatment CVital Signs: Heart Rate (HR)10 min post-dose62 beats per minuteStandard Deviation 12.7
Treatment CVital Signs: Heart Rate (HR)360 min post-dose61 beats per minuteStandard Deviation 8.4
Treatment CVital Signs: Heart Rate (HR)180 min post-dose63 beats per minuteStandard Deviation 9.9
Treatment CVital Signs: Heart Rate (HR)60 min post-dose61 beats per minuteStandard Deviation 10.8
Treatment CVital Signs: Heart Rate (HR)30 min post-dose61 beats per minuteStandard Deviation 13.7
Treatment CVital Signs: Heart Rate (HR)Pre-dose (Baseline)58 beats per minuteStandard Deviation 11.7
Secondary

Vital Signs: Systolic Blood Pressure (SBP)

Subject vital signs, i.e., blood pressure and heart rate, were measured prior to study drug dosing (baseline) and up to 360 minutes after dosing during the study visit.

Time frame: Pre-dose (baseline) to 360 minutes post-dose

Population: Subjects who have taken any amount of study drug treatment.

ArmMeasureGroupValue (MEAN)Dispersion
Treatment T1Vital Signs: Systolic Blood Pressure (SBP)10 min post-dose123 mmHgStandard Deviation 13.8
Treatment T1Vital Signs: Systolic Blood Pressure (SBP)120 min post-dose112 mmHgStandard Deviation 10.4
Treatment T1Vital Signs: Systolic Blood Pressure (SBP)60 min post-dose113 mmHgStandard Deviation 11.2
Treatment T1Vital Signs: Systolic Blood Pressure (SBP)Pre-dose (Baseline)110 mmHgStandard Deviation 10
Treatment T1Vital Signs: Systolic Blood Pressure (SBP)360 min post-dose113 mmHgStandard Deviation 9.8
Treatment T1Vital Signs: Systolic Blood Pressure (SBP)180 min post-dose114 mmHgStandard Deviation 10.1
Treatment T1Vital Signs: Systolic Blood Pressure (SBP)30 min post-dose116 mmHgStandard Deviation 12.3
Treatment T2Vital Signs: Systolic Blood Pressure (SBP)60 min post-dose113 mmHgStandard Deviation 9.9
Treatment T2Vital Signs: Systolic Blood Pressure (SBP)Pre-dose (Baseline)112 mmHgStandard Deviation 13.2
Treatment T2Vital Signs: Systolic Blood Pressure (SBP)10 min post-dose122 mmHgStandard Deviation 14.1
Treatment T2Vital Signs: Systolic Blood Pressure (SBP)30 min post-dose117 mmHgStandard Deviation 11.5
Treatment T2Vital Signs: Systolic Blood Pressure (SBP)120 min post-dose114 mmHgStandard Deviation 9.6
Treatment T2Vital Signs: Systolic Blood Pressure (SBP)180 min post-dose113 mmHgStandard Deviation 11.4
Treatment T2Vital Signs: Systolic Blood Pressure (SBP)360 min post-dose113 mmHgStandard Deviation 9.3
Treatment CVital Signs: Systolic Blood Pressure (SBP)120 min post-dose114 mmHgStandard Deviation 10.9
Treatment CVital Signs: Systolic Blood Pressure (SBP)10 min post-dose121 mmHgStandard Deviation 11.3
Treatment CVital Signs: Systolic Blood Pressure (SBP)360 min post-dose113 mmHgStandard Deviation 9.5
Treatment CVital Signs: Systolic Blood Pressure (SBP)180 min post-dose115 mmHgStandard Deviation 11
Treatment CVital Signs: Systolic Blood Pressure (SBP)60 min post-dose115 mmHgStandard Deviation 10
Treatment CVital Signs: Systolic Blood Pressure (SBP)30 min post-dose116 mmHgStandard Deviation 10.6
Treatment CVital Signs: Systolic Blood Pressure (SBP)Pre-dose (Baseline)111 mmHgStandard Deviation 9.4

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