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Linear Piezoelectric Low Intensity Shockwave Treatment (LI-SWT) for the Treatment of Erectile Dysfunction in PDE5i Non Responder

10. september 2026 opdateret af: HUNG PUI LONG WILSON, The University of Hong Kong

Linear Piezoelectric Low Intensity Shockwave Treatment (LI-SWT) for the Treatment of Erectile Dysfunction in PDE5i Non Responder: A Randomized-Controlled Trial

The goal of this clinical trial is to assess the efficacy and safety of linear piezoelectric Li-SWT for erectile dysfunction patients who have poor treatment respond from PDE5i oral treatment. Participants will be randomised to either receive 4 cycles, once per week, of Li-SWT treatment on the penis or the Sham group, where the treatment appears to be identical but the shockwave machine is deactivated. Investigators will compare the before and after treatment erectile function using the IIEF questionnaire of the two groups 1 month after treatment to assess the treatment outcome. After that, the Sham group patient would be offered to receive compensatory Li-SWT treatment and their post treatment response will be assessed.

All the patients completing the Li-SWT treatment will be followed up at 6 and 12 months to assess the efficacy and adverse events.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

40

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

      • Hong Kong, Hong Kong
        • Rekruttering
        • Queen Mary Hospital
        • Kontakt:
        • Ledende efterforsker:
          • Pui Long Wilson Hung, MBBS

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

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Beskrivelse

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

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Crossover opgave
  • Maskning: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: LiSWT
LiSWT with 8Hz, 0.16 mJ/mm2, wave focus penetration depth 10-15mm at corpora cavernosa (2000 shock), crus of the penis (2000 shock), Once per week for 4 weeks
LiSWT with 8Hz, 0.16 mJ/mm2, wave focus penetration depth 10-15mm at corpora cavernosa (2000 shock), crus of the penis (2000 shock), Once per week for 4 weeks
Sham-komparator: Sham
Sham comparator with the device deactivated
Sham low-intensity shockwave therapy with device deactivated

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Proportion of men with improvement in International Index of Erectile Function (IIEF) score at 1 month after traetment
Tidsramme: 1 month after Sham/LiSWT
Total scores range from 5 to 25, where higher scores indicate better erectile function/lower severity of erectile dysfunction. This outcome measure reports the proportion of participants achieving an improvement in IIEF score compared to baseline.
1 month after Sham/LiSWT

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Proportion of men meeting the Minimal Clinically Important Difference (MCID) in the International Index of Erectile Function (IIEF) score
Tidsramme: 1 month
The International Index of Erectile Function (IIEF) is a self-administered questionnaire used to assess erectile function.Total scores range from 5 to 25, where higher scores indicate better erectile function/lower severity of erectile dysfunction. This outcome measure reports the proportion of participants achieving a minimal clinically important difference (MCID) in the IIEF-5 score compared to baseline.
1 month
Proportion of men meeting the Minimal Clinically Important Difference (MCID) in the International Index of Erectile Function - Erectile Function (IIEF-EF) domain score at 6 and 12 months after treatment
Tidsramme: 6 and 12 months after treatment
IIEF is a self-administered questionnaire used to assess erectile function. Total scores range from 5 to 25, where higher scores indicate better erectile function/lower severity of erectile dysfunction. This outcome measure reports the proportion of participants achieving a minimal clinically important difference (MCID) in the IIEF-5 score compared to baseline.
6 and 12 months after treatment
Erectile hardness score (EHS) at 1,6, 12 months after treatment
Tidsramme: 1, 6, 12 months after LiSWT treatment
vertical score assessing penile hardness on a 4-point single-item scale ranging from 1 to 4, where 1 indicates "penis is larger, but not hard" and 4 indicates "penis is completely hard and fully rigid." Higher scores indicate better erectile function/rigidity.
1, 6, 12 months after LiSWT treatment
Side effects and safety profile
Tidsramme: From initiation of first Sham/LiSWT treatment until 12 months after the last LiSWT treatment
e.g. tolerability, pain using the visual analogue scale, bleeding, bruising, penile plaque, penile deformity Safety and tolerability will be evaluated by recording the incidence, severity, and type of all treatment-related adverse events. Pain will be assessed using a Visual Analogue Scale (VAS), a single-item numeric scale ranging from 0 (no pain) to 10 (worst possible pain), where higher scores indicate greater pain intensity. Specific adverse events evaluated include penile pain, bleeding, bruising, formation of penile plaque, and penile deformity.
From initiation of first Sham/LiSWT treatment until 12 months after the last LiSWT treatment

Samarbejdspartnere og efterforskere

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Sponsor

Samarbejdspartnere

Datoer for undersøgelser

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Studer store datoer

Studiestart (Faktiske)

7. januar 2026

Primær færdiggørelse (Anslået)

31. december 2026

Studieafslutning (Anslået)

31. marts 2027

Datoer for studieregistrering

Først indsendt

24. juni 2026

Først indsendt, der opfyldte QC-kriterier

10. september 2026

Først opslået (Faktiske)

15. september 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

15. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

10. september 2026

Sidst verificeret

1. juni 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • LiSWTED

Plan for individuelle deltagerdata (IPD)

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