# Steady-State Feedback Actions of Testosterone on Luteinizing Hormone Secretion in Young and Older Men

> **NCT00431197** · PHASE1 · COMPLETED · sponsor: **Mayo Clinic** · enrollment: 40 (estimated)

## Conditions studied

- Hypogonadism

## Interventions

- **DRUG:** Ketoconazole, Dexamethesone, Androgel,GnRH

## Key facts

- **NCT ID:** NCT00431197
- **Lead sponsor:** Mayo Clinic
- **Sponsor class:** OTHER
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2004-02
- **Primary completion:** 2007-12
- **Final completion:** 2007-12
- **Target enrollment:** 40 (ESTIMATED)
- **Last updated:** 2010-01-28

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00431197

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00431197, "Steady-State Feedback Actions of Testosterone on Luteinizing Hormone Secretion in Young and Older Men". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT00431197. Licensed CC0.

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