52 Week Study + 24-Month Long-Term Extension of Safety, PK, & Efficacy of XYOSTED® for Testosterone Replacement in Male Adolescents With Hypogonadism
Public ClinicalTrials.gov record NCT06689085. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Open-Label, Multiple-Dose, 52-Week Study + 24-Month Long-Term Safety Extension to Evaluate the Safety, PK, & Efficacy of XYOSTED® for Testosterone Replacement in Male Adolescents With Deficiency or Absence of Endogenous Testosterone Due to Primary or Secondary Hypogonadism
Study identification
- NCT ID
- NCT06689085
- Recruitment status
- Recruiting
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- Halozyme Therapeutics
- Industry
- Enrollment
- 100 participants
Conditions and interventions
Conditions
Interventions
- Testosterone enanthate Combination Product
Combination Product
Eligibility (public fields only)
- Age range
- 12 Years to 17 Years
- Sex
- Male
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Mar 6, 2025
- Primary completion
- Feb 29, 2028
- Completion
- Feb 28, 2030
- Last update posted
- Feb 17, 2026
2025 – 2030
United States locations
- U.S. sites
- 20
- U.S. states
- 15
- U.S. cities
- 20
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Children's Hospital Los Angeles | Los Angeles | California | 90027 | Recruiting |
| Rady Children's Hospital - San Diego | San Diego | California | 92123 | Recruiting |
| University of California San Francisco | San Francisco | California | 94143 | Recruiting |
| Children's Hospital Colorado | Aurora | Colorado | 80045 | Recruiting |
| Nemours Children's Specialty Care - Jacksonville | Jacksonville | Florida | 32207 | Recruiting |
| Ann & Robert H. Lurie Children's Hospital of Chicago | Chicago | Illinois | 60611 | Recruiting |
| Boston Children's Hospital | Boston | Massachusetts | 02115 | Recruiting |
| University of Massachusetts Memorial Medical Center | Worcester | Massachusetts | 01655 | Recruiting |
| M Health Fairview U Minnesota | Minneapolis | Minnesota | 55454 | Recruiting |
| Washington University School of Medicine in St. Louis | St Louis | Missouri | 63110 | Recruiting |
| The DOCS | Las Vegas | Nevada | 89113 | Recruiting |
| Children's Hospital at Montefiore | The Bronx | New York | 10467 | Recruiting |
| OUHSC Pediatric Diabetes & Endocrinology | Oklahoma City | Oklahoma | 73104 | Recruiting |
| Children's Hospital of Philadelphia | Philadelphia | Pennsylvania | 19104 | Recruiting |
| Prisma Health Children's Hospital - Midlands | Columbia | South Carolina | 29203 | Recruiting |
| MedResearch | El Paso | Texas | 79902 | Recruiting |
| Texas Children's Hospital | Houston | Texas | 77030 | Recruiting |
| Primary Children's Hospital | Salt Lake City | Utah | 84112 | Recruiting |
| Seattle Children's Hospital | Seattle | Washington | 98105 | Recruiting |
| MultiCare Institute for Research & Innovation | Tacoma | Washington | 98405 | Recruiting |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT06689085, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Feb 17, 2026 · Synced May 20, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT06689085 live on ClinicalTrials.gov.