Assessment and Evaluation of Pharmacokinetic Profile of E004 in Healthy Adults

NCT ID: NCT01737892

Last Updated: 2016-03-17

Basic Information

• Recruitment Status: TERMINATED
• Clinical Phase: PHASE1/PHASE2
• Total Enrollment: 21 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2012-11-30
• Study Completion Date: 2012-11-30

Brief Summary

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 to complement an earlier PK study, API-E004-CL-B, for a more thorough evaluation of the E004 PK. Safety of E004 will also be evaluated.

Detailed Description

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 previously marketed Epinephrine CFC-MDI, labeled "For Investigational Use Only" will be used as a Reference Control (Arm C).

The main features of the study design are:

(1) All candidates must be screened and must satisfy all enrollment criteria. All enrolled subjects will participate in two Study Visits, corresponding to two randomized treatments. Each Study Visit consists of a pre-dose baseline assessment and a post-dose evaluation for 6 hours.

(2) It is important to minimize physical and psychological disturbances to the endogenous epinephrine concentrations in the study subjects, before and during the study visits. All subjects must maintain a reclining or recumbent resting position during the entire Study Visit, with physical activities restricted to a minimum necessity for bathroom trips and study activities. Caffeine-containing (including de-caffeinated) foods or beverages are prohibited. Physical exercise, unnecessary physical activities, and video games are prohibited throughout the study visit.

(3)At the Screening Visit and the beginning of each Study Visit, each subject will be trained on the correct self-administration of MDI, using a simulation MDI unit that contains no active drug. The following two randomized treatments will be self-administered at two Study Visits:

Treatment T: Two (2) inhalations of E004-d3 (125 mcg/inhalation), totaling 250 mcg of epinephrine-d3;

Treatment C: Two (2) inhalations of Epinephrine CFC-MDI (220 mcg/inhalation, totaling 440 mcg of epinephrine base equivalent).

(4) PK blood samples will be taken from a vein in a hand or arm via an indwelling anticoagulated IV catheter, or by venipunctures, at scheduled time points of predose baseline (within 30 minutes of dosing), and at 2±1, 5±1, 7.5±1, 10±1, 12.5, 15, 20, 25, 30, 45, 60, 90, 120, 240 and 360 minutes postdose. The total volume of blood taken per subject shall not exceed 500 mL in any 30-day period. Study visit schedule may be adjusted to avoid overdrawing blood in any 30-day period.

(5) At each PK sampling point, blood samples (~ 5mL), will be collected in ice-chilled potassium-EDTA sample tubes, each containing pre-added 1% (V:V) of a 1.0 M sodium metabisulfite solution as an antioxidant. Sample tubes will be labeled with a sample ID# (consisting of subject ID#, Study Visit#, and sample#). The sample tubes will be kept on ice or refrigerated, and will be centrifuged within 60 minutes of collection. The harvested plasma from each sample tube will be transferred to, and stored in, 2 storage tubes, respectively, and frozen at NMT -20 degrees C until analysis.

(6) PK samples will be analyzed with an established LC/MS/MS method, with a quantitative detection limit of 5 pg/mL, for both epinephrine-d3 (MW=186) and epinephrine (MW=183).

(7) 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 at the end of, or within 7 days after, Study Visit-2.

Conditions

Asthma

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: TREATMENT
• Blinding Strategy: SINGLE

Study Groups

Arm T-Epinephrine Inhalation Aerosol HFA

Experimental arm utilizing Epinephrine HFA-MDI (E004)

Group Type: EXPERIMENTAL

Arm T Epinephrine Inhalation Aerosol HFA, 125 mcg, 1 inhalation

Intervention Type: DRUG

Epinephrine Inhalation Aerosol HFA, Single dose 125 mcg, 1 inhalation

Arm C-Epinephrine Inhalation Aerosol CFC

Active comparator arm utilizing Epinephrine CFC-MDI

Group Type: ACTIVE_COMPARATOR

Arm C-Epinephrine Inhalation Aerosol CFC

Intervention Type: DRUG

Epinephrine Inhalation Aerosol - CFC, Single dose 220 mcg, 1 inhalation

Interventions

Arm T Epinephrine Inhalation Aerosol HFA, 125 mcg, 1 inhalation

Epinephrine Inhalation Aerosol HFA, Single dose 125 mcg, 1 inhalation

Intervention Type: DRUG

Arm C-Epinephrine Inhalation Aerosol CFC

Epinephrine Inhalation Aerosol - CFC, Single dose 220 mcg, 1 inhalation

Intervention Type: DRUG

Other Intervention Names

Primatene Mist

Eligibility Criteria

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;
• Body weight greater than or equal to 50 kg for men and greater than or equal to 45 kg for women, and BMI within the range of 18.5 - 30.0 kg/m2 inclusive
• Sitting blood pressure less than or equal to 135/90 mmHg;
• Demonstrating negative alcohol/drug screen tests;
• 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;

Exclusion Criteria

• A smoking history of more than or equal to 10 pack-years, or having smoked within 6 months prior to Screening;
• Upper respiratory tract infections within 2 weeks, or lower respiratory tract infection within 4 weeks, prior to Screening
• Any current or recent respiratory conditions that, per investigator discretion, might significantly affect pharmacodynamic response to the study drugs, including but not limited to: asthma, COPD, cystic fibrosis, bronchiectasis, tuberculosis, emphysema, etc.
• Concurrent clinically significant cardiovascular, hematological, renal, neurologic, hepatic, endocrine (including diabetes), psychiatric, neoplastic or other illnesses that in the opinion of the investigator could impact on the conduct, safety and evaluation of the study
• Known intolerance or hypersensitivity to any of the study MDI ingredients (i.e., epinephrine, HFA-134a, CFC-12, CFC-114, polysorbate-80, ethanol, thymol, nitric acid and ascorbic acid)
• Use of prohibited drugs or failure to observe the drug washout restrictions
• Having been on other investigational drug/device studies, or donated blood, in the last 30 days prior to Screening.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 30 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Amphastar Pharmaceuticals, Inc.

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Vladimir Evilevitch, M.D.

Role: STUDY_DIRECTOR

Amphastar Pharmaceuticals, Inc.

Locations

West Coast Clinical Trials, LLC

Cypress, California, United States

Countries

United States

References

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Reference Type: BACKGROUND

PMID: 2019665 (View on PubMed)

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Reference Type: BACKGROUND

PMID: 16400891 (View on PubMed)

Warren JB, Doble N, Dalton N, Ewan PW. Systemic absorption of inhaled epinephrine. Clin Pharmacol Ther. 1986 Dec;40(6):673-8. doi: 10.1038/clpt.1986.243.

Reference Type: BACKGROUND

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Reference Type: BACKGROUND

PMID: 10919679 (View on PubMed)

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Reference Type: BACKGROUND

PMID: 10936150 (View on PubMed)

Kushner DJ, Baker A, Dunstall TG. Pharmacological uses and perspectives of heavy water and deuterated compounds. Can J Physiol Pharmacol. 1999 Feb;77(2):79-88.

Reference Type: BACKGROUND

PMID: 10535697 (View on PubMed)

Other Identifiers

API-E004-CL-B4

Identifier Type: -

Identifier Source: org_study_id