Epinephrine Inhalation Aerosol USP, a HFA-MDI Study for Assessment of Pharmacokinetics

June 27, 2017 updated by: Amphastar Pharmaceuticals, Inc.

Epinephrine Inhalation Aerosol USP, an HFA-MDI CLINICAL STUDY-B2 FOR ASSESSMENT OF PHARMACOKINETICS (A Randomized, Evaluator-Blind, Single-Dose, Two Arm, Crossover, PK Study in Healthy Volunteers)

This study examines the pharmacokinetic profile of Armstrong's proposed Epinephrine Inhalation Aerosol USP, an HFA-MDI (E004), using a stable isotope deuterium-labeled epinephrine (epinephrine-d3) to differentiate the administered drug from the endogenous epinephrine, in healthy male and female adult volunteers. The current study is designed for a more thorough evaluation of the E004 Pharmacokinetics. Safety of E004 will also be evaluated, under augmented dose conditions.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

E004 is formulated with epinephrine free base as the active ingredient, and hydrofluoroalkane (HFA-134a) as the propellant.

In order to differentiate the inhaled epinephrine from the fluctuating background of endogenous epinephrine 1, a stable-isotope deuterium (2H) labeled epinephrine (epinephrine-d3) preparation will be used to formulate E004 inhalers, denoted as E004-d3. PK of E004 at 125 mcg of epinephrine-d3 per inhalation, will be compared to that of the currently marketed, non-labeled, Epinephrine-CFC MDI as the Reference Control (220 mcg per inhalation).

This study is a randomized, evaluator-blind, single dose, two-arm, crossover, PK study, to be conducted in ~18 healthy, male and female, adult volunteers. PK will be studied using E004-d3 at 125 mcg per inhalation (Arm T). A currently marketed, non-labeled, Epinephrine CFC-MDI will be used as a Reference Control (Arm C).

Study Type

Interventional

Enrollment (Actual)

23

Phase

  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Cypress, California, United States, 90630
        • Amphastar Site 0035

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

16 years to 28 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Generally healthy at screening;
  • No clinically significant respiratory, cardiovascular and other systemic or organic illnesses;
  • Body weight ≥ 50 kg for men and ≥ 45 kg for women,
  • Sitting blood pressure ≤ 135/90 mm Hg;
  • Demonstrating negative HIV, HBsAg and HCV-Ab screen tests;
  • Women of child-bearing potential must be non-pregnant, non-lactating, and practicing a clinically acceptable form of birth control;
  • Properly consented
  • Other criteria apply

Exclusion Criteria:

  • A smoking history of ≥10 pack-years, or having smoked within 6 months;
  • Upper respiratory tract infections within 2 wk, or lower respiratory tract infection within 4 wk, prior to Screening;
  • Any current or recent respiratory conditions that might significantly affect pharmacodynamic response to the study drugs;
  • Known intolerance or hypersensitivity to the study MDI ingredients;
  • Having been on other investigational studies, or donated blood, in the last 30 days;
  • Other Criteria Apply

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Epinephrine Inhalation Aerosol, HFA
Experimental treatment of 10 inhalations of 125 mcg epinephrine base propelled by HFA 134a
Drug: Epinephrine Inhalation Aerosol, HFA
10 inhalations of epinephrine inhalation aerosol, 125 mcg/inhalation
Other Names:
  • HFA epinephrine inhalation aerosol, 125 mcg/inhalation
Active Comparator: Epinephrine Inhalation Aerosol, CFC
Epinephrine Inhalation Aerosol, CFC propelled, 220 mcg/inhalation , 10 inhalations
Drug: Epinephrine Inhalation Aerosol
Epinephrine Inhalation Aerosol, 220 mcg/ inhalation, 10 inhalations
Other Names:
  • Primatene Mist
  • Epinephrine Inhalation Aerosol, USP

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Baseline Concentration (C0) of Total Epinephrine
Time Frame: 0 to 30 minutes prior to dosing
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.
0 to 30 minutes prior to dosing
Peak Concentration (Cmax) of Total Epinephrine From Time Zero to 6 Hours Post-dose
Time Frame: Pre-dose 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), 2, 5, 7.5, 10, 12.5, 15, 20, 25, 30, 45, 60, 90, 120, 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.
Pre-dose to 6 hours post-dose
Area Under the Curve From Time Zero to 6 Hours Post-dose (AUC[0-6]) for Total Epinephrine
Time Frame: Pre-dose 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), 2, 5, 7.5, 10, 12.5, 15, 20, 25, 30, 45, 60, 90, 120, 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.
Pre-dose to 6 hours post-dose
Time to Reach Peak Concentration (Tmax) for Total Epinephrine
Time Frame: Pre-dose 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), 2, 5, 7.5, 10, 12.5, 15, 20, 25, 30, 45, 60, 90, 120, 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.
Pre-dose to 6 hours post-dose
Half-life (t1/2) of Total Epinephrine
Time Frame: Pre-dose 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), 2, 5, 7.5, 10, 12.5, 15, 20, 25, 30, 45, 60, 90, 120, 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 to decrease to half the peak concentration in plasma during the treatment period.
Pre-dose to 6 hours post-dose
Concentration vs. Time for Total Epinephrine From Time Zero to 6 Hours Post-dose
Time Frame: Pre-dose 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), 2, 5, 7.5, 10, 12.5, 15, 20, 25, 30, 45, 60, 90, 120, 240, and 360 minutes post-dose in each treatment period and were analyzed using an established analysis method.
Pre-dose to 6 hours post-dose

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Amphastar Pharmaceuticals, Inc.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2010

Primary Completion (Actual)

September 1, 2010

Study Completion (Actual)

January 1, 2011

Study Registration Dates

First Submitted

August 24, 2010

First Submitted That Met QC Criteria

August 24, 2010

First Posted (Estimate)

August 25, 2010

Study Record Updates

Last Update Posted (Actual)

July 25, 2017

Last Update Submitted That Met QC Criteria

June 27, 2017

Last Verified

June 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • API-E004-CL-B2

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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