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Taking people in United StatesNo phase

EndoPAT Device for Endothelial Dysfunction in ED

Key facts

Who runs it
University of California, Irvine
Where
Newport Beach, United StatesSee the site
Trial code
Status
Recruiting
People taking part
120 people, planned
Started
13 Aug 2025
Expected to end
Jan 2027
Type of study
Interventional, 3 groupsOne group gets an existing treatment, for comparison.
Treatments tested
  • Daily low-dose PDE5 inhibitor therapy
  • Testosterone therapy as per clinical guidelines.
Record updated
2 February 2026

Who can take part

Age
18 years and older
Sex
Men only
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 3 criteriaShow less

Who can take part

  • Males 18 years old and above
  • Diagnosed with erectile dysfunction or hypogonadism

Who cannot take part

  • Patients without the above criteria

Where in United States

  • UCI Urology | Men's Health CenterNewport Beach, United StatesContact: Muhammed AM Hammad, MbbchTaking people

About the trial

What the trial wants to find out

To assess endothelial dysfunction in young men (aged 30-50) with vasculogenic ED identified through penile Doppler ultrasound.

Read full original descriptionShow less

To evaluate changes in endothelial function using EndoPAT before and 3-6 months after daily low-dose phosphodiesterase type 5 (PDE5) inhibitor therapy.

To investigate endothelial function alterations in hypogonadal patients before and 3-6 months after initiating testosterone (T) therapy

The 3 groups in the trial

  • PDE5 Inhibitor Therapy in Men with Vasculogenic Erectile Dysfunction (ED)Existing treatment, for comparison

    Population: 40 men aged 18 or above years diagnosed with vasculogenic ED. Intervention: Daily low-dose PDE5 inhibitor therapy. Assessments: Endothelial function will be assessed using the EndoPAT device at baseline, 3 months, and 6 months post-intervention.

    Treatment: Daily low-dose PDE5 inhibitor therapy

  • Testosterone Therapy in Hypogonadal MenExisting treatment, for comparison

    Population: 40 hypogonadal men aged 18 or above Intervention: Testosterone therapy as per clinical guidelines. Assessments: Endothelial function will be assessed using the EndoPAT device at baseline, 3 months, and 6 months post-intervention.

    Treatment: Testosterone therapy as per clinical guidelines.

  • Vasculogenic ED confirmed by penile Doppler ultrasoundNo study treatment, for comparison

    Population: 40 men aged 18 or above years diagnosed with vasculogenic ED. Intervention: None Assessments: Endothelial function will be assessed using the EndoPAT device at baseline, 3 months, and 6 months post-intervention.

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Utilizing EndoPAT Device for Endothelial Dysfunction Assessment in Erectile Dysfunction and Hormonal Therapy
Record updated
2 February 2026