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Clinical trialNCT02147964WithdrawnPhase 2Interventional

ITT-5 Mechanisms of Spermatogenesis in Man

SponsorUniversity of WashingtonEnrollment0Gonadotropin Deficiency
View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

The purpose of this investigational drug study is to determine how much male hormone, testosterone, is needed to maintain sperm production in the testis.
clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

1 registered facility, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States
  • University of Washington Medical Center (health Sciences)

    Seattle, Washington, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

AcylineDutasteride →Chorionic gonadotropin →Ketoconazole →Testosterone 1% GelPlacebo dutasteridePlacebo ketoconazole
Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
30 Jun 2019
Primary completion
31 Dec 2021
Completion
31 Dec 2026
Last update posted
18 Dec 2019
Registered enrollment
0
Registry id
NCT02147964
clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.