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HypogonadismPhase 2NCT02697188

Pilot Pharmacokinetic Study of Oral Testosterone Ester Formulations in Hypogonadal Men

A Phase 2 study testing Testosterone undecanoate and Testosterone enanthate in people with Hypogonadism, run by Clarus Therapeutics, Inc. at 2 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Determine the serum pharmacokinetic profile for two oral formulations of T-esters (one TE and one TU) administered once -(QD) and twice-daily (BID) to hypogonadal men. Read more about this study

Who is it for?
Ages 18 to 65 years, men only
Conditions the study is for
Hypogonadism
What is being tested?
Testosterone undecanoate and Testosterone enanthate
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
2 sitesUnited States
Study dates
Nov 2007to Apr 2008
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male, ages 18 to 65 Serum total testosterone less than or equal to 250 ng/dL Naive to androgen replacement therapy Subject must be on stable doses of thyroid or adrenal replacement hormones for at least 14 days prior to enrollment

Who cannot join

  • Significant intercurrent disease of any type, in particular, liver, kidney or heart disease, uncontrolled diabetes mellitus or psychiatric illness. Patients with treated hyperlipidemia will not be excluded provided they have been stable on their lipid-lowering mediation for at least three months. For non-insulin dependent diabetic subjects, HbA1c>9%.
  • Abnormal prostate digital rectal examination, elevated PSA (serum PSA >4ng/mL), AUA Sympton Score greater than or equal to 15 points, and a history or prostate cancer.
  • Serum transaminases >2X upper limit of normal (ULN) or serum bilirubin >2.0 mg/dL.
  • History of severe or multiple allergies, severe adverse drug reaction or leucopenia. Known hypersensitivity to lidocaine or all surgical dressings.
  • History of abnormal bleeding tendencies. Oral, topical, or buccal T therapy within the previous week, or intramuscular T injection within the previous 4 week.
  • Use of dietary supplements that may increase serum T, such as androstenedione or DHEA, within the previous 4 weeks.
Show all 11Show fewer
  • Know malabsorption syndrome and/or current treatment with oral lipase inhibitors, bile acid-binding resins, colestipol, fibric acid derivatives, gemfibrozil, and probucol.
  • Smokers who are unable to refrain from smoking during confinement periods. History of, or current evidence of, abuse of alcohol or any drug substance. Poor compliers or those unlikely to attend. Receipt of any drug as part of a research study within 30 days of inital dose administration in this study.
  • Blood donation (usually 550 mL) within the 12-week period before the initial study dose.
  • Hematocrit less than 35%. Known clinical polycythemia or hematocrit greater than 50%. Current use of paroxetine and clomipramine, antiandrogens, estrogens, p450 enzyme inducers, or barbiturates.
  • History of sleep apnea.

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center

    Los Angeles, California, 90502

  • dgd Research, Inc

    San Antonio, Texas, 78229

Other trials in United States

About this study

Official title: Phase IIa, Pilot, Pharmacokinetic Study of Oral Testosterone Ester Formulations in Hypogonadal Men

Determine the serum pharmacokinetic profile for two oral formulations of T-esters (one TE and one TU) administered once -(QD) and twice-daily (BID) to hypogonadal men.

Read the detailed description

Five period cross-over study in which subjects received a single day of dosing in each period. Dosing was either QD or BID with one of two T esters (T-enanthate (TE) or T-undecanoate (TU)). Dosing was within 5 minutes of meals (breakfast and for BID dosing dinner). There was a minimum of a 5-day washout between periods. Subjects were hypogonadal men.

Conditions
Hypogonadism
Being tested
Testosterone undecanoate, Testosterone enanthate
Keywords
testosterone, male hypogonadism, low testosterone
Medical subject headings
Hypogonadism, Eunuchism

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Testosterone undecanoateDrug

    Also called TU

    Single-day dose as QD or BID for 3 of 5 crossover periods

  • Testosterone enanthateDrug

    Also called TE

    Single-day dose for 2 of 5 crossover periods

Study groups in NCT02697188
Study groupRoleWhat they receive
Testosterone undecanoateExperimentalPeriod 2 - 200 mg T (as TU) QD Period 3 - 200 mg T (as TU) BID (100 mg/dose) Period 4 - 400 mg T (as TU) BID (200 mg/dose)
Receives: Drug: Testosterone undecanoate
Testosterone enanthateActive comparatorPeriod 1 - 400 mg T (as TE) QD Period 5 - 800 mg T (as TE) BID (400 mg/dose)
Receives: Drug: Testosterone enanthate

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mean Serum Testosterone Cavg

    The objective of the study was to determine the single day serum pharmacokinetic profile for two oral formulations of T-esters (one TE and one TU formulation) administered once- and twice-daily to hypogonadal men.

    Measured: Concentrations at -0.5, 0, 1, 2, 4, 8, 12, 13, 14, 16, 20, 24 and 34 hours post dose

Secondary outcomes (1)
  1. Mean Serum Dihydrotestosterone Cmax

    The objective of the study was to determine the single day serum pharmacokinetic profile for two oral formulations of T-esters (one TE and one TU formulation) administered once- and twice-daily to hypogonadal men.

    Measured: 24 hours post-dose in each period

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Mar 2016 (estimated)
  2. Study startNov 2007
  3. Primary completionApr 2008
  4. Study completionApr 2008

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02697188
Sponsor's protocol ID
CLAR-07004
Status last verified
Oct 2018
First submitted
29 Jan 2014
Last updated
1 Nov 2018
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Testosterone undecanoate and Testosterone enanthate in people with Hypogonadism, run by Clarus Therapeutics, Inc. at 2 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 1 Nov 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 1 Nov 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mean Serum Testosterone Cavg (time frame: Concentrations at -0.5, 0, 1, 2, 4, 8, 12, 13, 14, 16, 20, 24 and 34 hours post dose). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Nov 2018.

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