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NCT00399165 · ClinicalTrials.gov registry record · Phase 1

Oral Androgens in Man-4: (Short Title: Oral T-4)

A Phase 1 study, sponsored by University of Washington.

Completed
Registry status
Phase 1
Development phase
20
Enrollment target

NCT00399165: Completed Phase 1 study, sponsored by University of Washington.

NCT00399165 is a Phase 1 study that has completed, run by University of Washington. The registered enrollment target is 20 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (67% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00399165, a Phase 1 study, has completed, sponsored by University of Washington.

COMPLETED
Registry status
Phase 1
Development phase
20 participants
Enrollment target

Study Summary

The protocol was designed to address the hypothesis that oral testosterone enanthate plus dutasteride can suppress the secretion of LH and FSH after four weeks of administration. In addition, we will compare the gonadotropin suppression mediated by a dose of testosterone enanthate (400 mg twice daily) that would be expected to maintain the serum testosterone in the normal range throughout the day, with the same dose (800 mg once daily) administered once daily. This larger once-daily dose is expected to result in a higher peak and lower trough by the end of the dosing interval

Interventions

  • DRUG Testosterone Enanthate
  • DRUG Dutasteride
  • OTHER placebo sesame oil

Trial Details

FieldValue
Enrollment Target 20 participants
Start Date 2006-11
Est. Completion 2007-05
Phase Phase 1
University of Washington

1,048 total trials

What the finished NCT00399165 record still lists

NCT00399165 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 20 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (67% lower).

The record links to 0 conditions, and to 3 interventions - of which Testosterone Enanthate is the first listed.

NCT00399165 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00399165 about?

NCT00399165 is a clinical study titled "Oral Androgens in Man-4: (Short Title: Oral T-4)". The protocol was designed to address the hypothesis that oral testosterone enanthate plus dutasteride can suppress the secretion of LH and FSH after four weeks of administration. In addition, we will compare the gonadotropin suppression mediated by a dose of testosterone enanthate (400 mg twice dail...

What is the current status of trial NCT00399165?

This trial is currently completed. It is a Phase 1 study. The enrollment target is 20 participants. The study started on 2006-11. Estimated completion is 2007-05.

What interventions are being tested in trial NCT00399165?

The interventions under investigation include: Testosterone Enanthate (DRUG), Dutasteride (DRUG), placebo sesame oil (OTHER).

Who is sponsoring clinical trial NCT00399165?

This trial is sponsored by University of Washington, which has 1,048 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00399165's enrollment target sits among peer trials

20 1629th of 2000 higher than 285 of 2,000 other Phase 1 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT00399165, the US trial registry maintained by the National Library of Medicine. NCT00399165 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.