Pharmacokinetic Study of Subcutaneous Testosterone Enanthate

January 18, 2019 updated by: Antares Pharma Inc.

An Open-Label Study to Evaluate the Pharmacokinetics of Testosterone Enanthate After Single-Dose Injection Via QuickShot® Testosterone in Healthy Male Subjects

Evaluation of pharmacokinetics of subcutaneous testosterone enanthate

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Evaluation of pharmacokinetics and safety profile of testosterone enanthate injected subcutaneously via auto-injector in healthy male volunteers

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
12

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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
    • Ohio
      • Cincinnati, Ohio, United States, 45227
        • Medpace Clinical Pharmacology Unit

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 55 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Healthy adult male subjects, 18-55 years of age, inclusive, at the time of signing the informed consent;
  • Body weight ≥50 kg and body mass index within the range 19-30 kg/m2, inclusive, at screening;
  • Medically healthy subjects with clinically insignificant screening and check-in results (medical history, 12-lead electrocardiogram [ECG], physical examination, and laboratory tests); and
  • Subjects who are able to understand and are willing and able to give their signed informed consent before any trial-related procedures are performed.

Exclusion Criteria:

  • Currently diagnosed or a history of asthma, urticarial, angioedema, anaphylaxis, atopic dermatitis, clinically significant abnormality of skin of the abdomen, cancer, diabetes, or any other clinically significant cardiovascular, respiratory, metabolic, renal, hepatic, gastrointestinal, hematological, dermatological, venereal, neurological, psychiatric, or other major disorders;
  • History of benign prostate hypertrophy (BPH), prostate cancer, or abnormal prostate specific antigen (PSA) values;
  • PSA level > 3 ng/ml at screening;
  • Presence or history of gastrointestinal, hepatic or renal disease, or any other condition (including surgery) known to interfere with the absorption, distribution, metabolism, or excretion of medicines;
  • Systolic blood pressure outside the range of 90 to 140 mmHg, diastolic blood pressure outside the range of 40 to 90 mmHg, and/or pulse rate outside the range of 40 to 100 beats per minute after one repeat at screening or check-in;
  • Abnormal ECG at screening as judged by the Investigator;
  • History of clinically significant drug and/or food allergies as determined by the Investigator;
  • Allergy to sesame, sesame oil, or a history of hypersensitivity or idiosyncratic reaction to compounds related to the study drug
  • Subjects undergoing current treatment with other androgens (i.e. dehydroepiandrosterone [DHEA]), anabolic steroids, other sex hormones, or drugs that interfere with the metabolism of testosterone (i.e. opioids, anastrozole, clomiphene, dutasteride, finasteride, flutamide, ketoconazole, spironolactone, and testolactone);
  • Subjects treated within the past 12 months with estrogens, gonadotropin releasing hormone (GnRH) agonists, or growth hormone;
  • Prescription, over the counter medications, vitamins, herbal and dietary supplements taken within 7 days or 5 half-lives (whichever is longer) prior to the dose of study medication and duration of the study;
  • Positive screen for human immunodeficiency virus (HIV), hepatitis B, and/or hepatitis C at screening;
  • Positive urine screen for drugs of abuse (amphetamine, barbiturates, benzodiazepines, cocaine, marijuana, methadone, methamphetamines, oxycodone, and opiates) or positive breath alcohol test at screening and check-in

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: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Testosterone enanthate auto-injector - 50 mg
Testosterone enanthate auto-injector - 50 mg (SC injection)
Combination product: Testosterone enanthate auto-injector
Randomization then administration of combination product study medication according to group assignment
Experimental: Testosterone enanthate auto-injector - 200 mg
Testosterone enanthate auto-injector- 200 mg (SC injection)
Combination product: Testosterone enanthate auto-injector
Randomization then administration of combination product study medication according to group assignment

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Maximum Concentration (Cmax) for Serum Testosterone and Testosterone Enanthate
Time Frame: Maximum serum concentrations occurring during an 8 days study window
Cmax = Maximum blood concentration (ng/dL) of TT=Total Testosterone and TE=Testosterone Enanthate
Maximum serum concentrations occurring during an 8 days study window
Area Under the Concentration-time Curve From Time Zero to Time t
Time Frame: 168 hrs
AUC(0-168h) (ng⋅hr/dL) = area under the concentration-time curve from time zero to Day 8 (1 week);
168 hrs
Area Under the Concentration-time Curve From Time Zero to Infinity
Time Frame: time zero to infinity
AUC(0-inf) (ng⋅hr/dL) = area under the concentration-time curve from time zero to infinity
time zero to infinity

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Time to Maximum Concentration (Tmax)(hr)
Time Frame: The sample time of Cmax during a 168 hour sampling interval
tmax = Time to reach maximum concentration
The sample time of Cmax during a 168 hour sampling interval
Half-life (t 1/2)(hr)
Time Frame: 168 hours
t 1/2 = Half-life is the time required for a concentration to reduce to half its initial value
168 hours
Clearance CL/F (L/hr)
Time Frame: 168 hours
Clearance - volume of plasma from which TT/TE is completely removed per unit time
168 hours
Vd/F (L)
Time Frame: 168 hours
Vd/F (L) = Apparent volume of distribution
168 hours

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Antares Pharma Inc.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Jonathan Jaffe, MD, Antares Pharma Inc.

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

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 1, 2014

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 1, 2014

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 1, 2014

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 2, 2014

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 4, 2014

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 8, 2014

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 19, 2019

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 18, 2019

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • QST-14-004

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

Yes

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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