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HypogonadismPhase 3NCT00433199

Testosterone Treatment for Hypogonadal Men

A Phase 3 study testing Testosterone (T) Gel 1.62% in people with Hypogonadism, run by Abbott.

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

Demonstrate efficacy and safety of Testosterone Gel 1.62% for the treatment of hypogonadal men Read more about this study

Who is it for?
Ages 18 to 80 years, men only
Conditions the study is for
Hypogonadism
What is being tested?
Testosterone (T) Gel 1.62%
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
274 participants
Where
No sites listed yet
Study dates
Feb 2007to Apr 2008
Phase
Phase 3
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 80 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Low T males 18 - 80 years of age

Who cannot join

  • Normal T levels
  • Elevated Prostatic Specific Antigen (PSA)

About this study

Official title: A Multi-Center, Randomized, Double-Blind,Placebo-Controlled Efficacy and Safety Study of Testosterone Gel 1.62% for the Treatment of Hypogonadal Men

Demonstrate efficacy and safety of Testosterone Gel 1.62% for the treatment of hypogonadal men

Conditions
Hypogonadism
Being tested
Testosterone (T) Gel 1.62%, Placebo
Keywords
Hypogonadism, Testosterone Deficiency
Medical subject headings
Hypogonadism

What participants receive

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

  • Testosterone (T) Gel 1.62%Drug

    Testosterone gel 1.62% contains 1.62% testosterone gel as active ingredient.

  • PlaceboDrug

    Placebo Control

Study groups in NCT00433199
Study groupRoleWhat they receive
PlaceboPlacebo comparatorPlacebo
Receives: Drug: Placebo
T-Gel 1.62%ExperimentalTestosterone (T) gel 1.62%
Receives: Drug: Testosterone (T) Gel 1.62%

What is being measured

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

  1. Percentage of Subjects on Testosterone Treatment Achieving Target Range for Testosterone Cav (Time-averaged Concentration Over the Dosing Interval of 24 Hours) on Day 112

    Cav results were required to fall within the normal range of 300-1000 ng/dL. Success in the study was defined as >=75% of subjects on active treatment within the normal serum testosterone concentration range of 300-1000 ng/dL. In addition, the lower bound of the 95% CI was to be not less than 65% based on the Day 112 Parmacokinetics (PK) results

    Measured: Day 112

Secondary outcomes (5)
  1. Percentage of Subjects on Testosterone Treatment Achieving Target Range for Testosterone Cav (Time-averaged Concentration Over the Dosing Interval of 24 Hours) on Day 14

    Cav results were required to fall within the normal range of 300-1000 ng/dL at Day 14. Success was defined as >=75% of subjects on active treatment within the normal serum testosterone concentration range of 300-1000 ng/dL. In addition, the lower bound of the 95% CI was to be not less than 65% based on the Day 14 PK results

    Measured: Day 14

  2. Percentage of Subjects on Testosterone Treatment Achieving Target Range for Testosterone Cav (Time-averaged Concentration Over the Dosing Interval of 24 Hours) on Day 56

    Cav results were required to fall within the normal range of 300-1000 ng/dL at Day 56. Success was defined as >=75% of subjects on active treatment within the normal serum testosterone concentration range of 300-1000 ng/dL. In addition, the lower bound of the 95% CI was to be not less than 65% based on the Day 56 PK results

    Measured: Day 56

  3. Percentage of Subjects on Testosterone Treatment Achieving Target Range for Testosterone Cav (Time-averaged Concentration Over the Dosing Interval of 24 Hours) on Day 182

    Cav results were required to fall within the normal range of 300-1000 ng/dL at Day 182. Success was defined as >=75% of subjects on active treatment within the normal serum testosterone concentration range of 300-1000 ng/dL. In addition, the lower bound of the 95% CI was to be not less than 65% based on the Day 182 PK results.

    Measured: Day 182

  4. Percentage of Subjects Achieving Target Range for Testosterone Cav During the Open-label Period at Day 266.

    The success at Day 266 was defined as >=75% of subjects within the normal serum total testosterone concentration range of 300-1000 ng/dL. The Lower bounds of the 95% CI was to be not less than 65%.

    Measured: Day 266

  5. Percentage of Subjects Achieving Target Range for Testosterone Cav During the Open-label Period at Day 364.

    The success at Day 364 was defined as >=75% of subjects within the normal serum total testosterone concentration range of 300-1000 ng/dL. The Lower bounds of the 95% CI was to be not less than 65%.

    Measured: Day 364

Timeline

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

  1. First posted9 Feb 2007 (estimated)
  2. Study startFeb 2007
  3. Primary completionOct 2007
  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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
274 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00433199
Sponsor's protocol ID
S176.3.104
Status last verified
Nov 2011
First submitted
8 Feb 2007
Last updated
27 Jan 2015

Publications

  • Kaufman JM, Miller MG, Fitzpatrick S, McWhirter C, Brennan JJ. One-year efficacy and safety study of a 1.62% testosterone gel in hypogonadal men: results of a 182-day open-label extension of a 6-month double-blind study. J Sex Med. 2012 Apr;9(4):1149-61. doi: 10.1111/j.1743-6109.2011.02630.x. Epub 2012 Feb 9.

    PubMed 22321357

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Testosterone (T) Gel 1.62% in people with Hypogonadism, run by Abbott.

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 2 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 27 Jan 2015. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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 8 Dec 2011). 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?

Percentage of Subjects on Testosterone Treatment Achieving Target Range for Testosterone Cav (Time-averaged Concentration Over the Dosing Interval of 24 Hours) on Day 112 (time frame: Day 112). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00433199, which also lists 1 linked publication.

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 27 Jan 2015; AzTrials last refreshed its copy on 30 Oct 2026.

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