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Shockwaves to the penis tested against erectile dysfunction

NCT ID NCT07820748

Symptom relief Sponsor: The University of Hong Kong Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Sep 15, 2026 · Last updated Sep 16, 2026 · Updated 1 time

Summary

Researchers are testing low-intensity shockwave therapy for men with erectile dysfunction who get little or no response from standard oral drugs like Viagra. The trial enrolls 40 men aged 30 to 80 who have had ED for at least six months. Half receive four weekly shockwave sessions to the penis, and half receive a sham treatment with the device turned off. The men answer a standard erectile function questionnaire before and one month after treatment, and those who finish are followed for a year to check for benefits and side effects.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
low-intensity shockwave therapy to the penis
What this could lead to
If it works, shockwave therapy could offer men who get little help from oral ED drugs a non-drug option that improves erectile function.
What could go wrong
This is a small, single-center trial of 40 men, so any benefit may be modest or may not hold up in larger studies. Shockwave therapy can cause mild discomfort or bruising, and some men may see no improvement.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 40 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jan 2026

Expected to finish

Mar 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

30 to 80 years

Sex

Male participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Male * Age 30-80 years * ED for at least 6 months, defined by IIEF-EF score 8-21 (moderate - mild) * Sexually active in a stable, heterosexual relationship of more than 3 months duration. * Agree to comply with all study related tests/procedures * Morning serum testosterone \>12nmol/L * Inadequate response after at least 4 attempts using highest tolerated PDE5i Exclusion Criteria: * Previous penile surgery (e.g. penile lengthening, penile cancer surgery, penile plication, grafting, penile implant). * Previous history of priapism or penile fracture * Morning serum testosterone level \<12nmol/L * Current or previous hormone usage, other than prescribed testosterone, clomiphene or thyroid medication. (Subjects with prior or current use of hormonal treatment for prostate cancer are also excluded * Psychogenic ED as determined by study investigator * Anatomical (Peyronie's Disease or penile curvature) abnormality * Neurological disease (Parkinson's, spinal cord injury) * Anti-coagulation therapy and/or INR \>1.5 (Patients on aspirin are eligible) 7 * Current or prior history of sexually transmitted disease * Tumor tissue/Treatment for cancer in the penile or pelvic region in past 5 years * Electronic devices implanted in the body (e.g. cardiac pacemaker, deep brain stimulator, spinal cord neurostimulator etc.) * Any other medical conditions or medical history that are deemed unsafe or high risk for the study treatment per investigator's discretion

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Conditions

The condition(s) this trial relates to.

erectile dysfunction

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Erectile dysfunction

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Queen Mary Hospital

    RECRUITING

    Hong Kong, Hong Kong

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