ClinicalTrials.gg
RecruitingNCT07563764Updated May 4, 2026

Low-Energy Shock Wave Therapy for Overactive Bladder in Women With Metabolic Syndrome

An interventional study of Low-Energy Extracorporeal Shock Wave Therapy (LiESWT) and Sham Shock Wave Therapy in Bladder, Lower Urinary Track Symptoms and Metabolic Syndrome, sponsored by KMUHIRB-F(I)-20230051. Recruiting at 1 site in Taiwan. Open to female participants aged 20 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-05-04.

Sponsored by KMUHIRB-F(I)-20230051 · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jun 2026, 4 months ago, but the record still lists the study as recruiting.
  • Registered 1 year 2 months after the study started (first participant enrolled Feb 2025, registered Apr 2026).
  • Started Feb 2025; still recruiting 1 year 9 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
20 Years to 75 Years
Sex
Female
01

Study summary

Overactive bladder (OAB) is a common condition that causes urinary urgency, frequent urination, and nocturia, which can significantly affect quality of life. Women with metabolic syndrome may have a higher risk of OAB due to vascular and metabolic abnormalities.

This study aims to evaluate the effectiveness and safety of low-energy extracorporeal shock wave therapy (LiESWT), a non-invasive treatment, in women with metabolic syndrome-associated OAB. Participants will be randomly assigned to receive either active LiESWT treatment or a sham (inactive) procedure.

Symptoms and treatment outcomes will be assessed using validated questionnaires, including the Overactive Bladder Symptom Score (OABSS), International Consultation on Incontinence Questionnaire (ICIQ-SF), Urinary Distress Inventory (UDI-6), and Incontinence Impact Questionnaire (IIQ-7), as well as a voiding diary and uroflow measurements.

The results of this study may help determine whether LiESWT is an effective treatment option for improving OAB symptoms in this patient population.

Read the detailed description

Overactive bladder (OAB) is a prevalent urological condition characterized by urinary urgency, frequency, and nocturia, which significantly impairs quality of life. Emerging evidence suggests a strong association between OAB and metabolic syndrome, which is characterized by insulin resistance, hypertension, dyslipidemia, and central obesity. These metabolic abnormalities may contribute to endothelial dysfunction, chronic inflammation, and autonomic dysregulation, potentially affecting bladder function.

Low-energy extracorporeal shock wave therapy (LiESWT) is a novel, non-invasive therapeutic modality that has been shown to promote angiogenesis, improve tissue perfusion, and modulate inflammatory responses. Previous studies have demonstrated its potential benefits in various urological conditions.

This study is designed as a randomized, double-blind, sham-controlled trial to evaluate the efficacy and safety of LiESWT in women with metabolic syndrome-associated OAB. Participants are randomly assigned to receive either LiESWT treatment or a sham procedure.

Clinical outcomes are assessed using validated patient-reported outcome measures, including OABSS, ICIQ-SF, UDI-6, and IIQ-7, along with objective parameters such as uroflowmetry and post-void residual volume. Assessments are performed at baseline and at multiple follow-up time points after treatment.

This study aims to provide clinical evidence on the therapeutic role of LiESWT in improving symptoms and quality of life in this specific patient population.

02

Conditions studied

  • Bladder
  • Lower Urinary Track Symptoms
  • Metabolic Syndrome
  • Urgency-Frequency
  • Bladder, Overactive

Keywords

  • Low-energy extracorporeal shock wave therapy
  • LiESWT
  • Overactive bladder
  • Metabolic syndrome
  • Urinary urgency
  • Urinary frequency
  • Nocturia
  • Randomized controlled trial
03

In context

Metabolic Syndrome

2,116 studies on the registry are indexed under Metabolic Syndrome; 347 are open to participants now.

This study's planned enrollment of 60 is close to the median of 60 across 1,572 interventional studies indexed under Metabolic Syndrome.

Browse Metabolic Syndrome studies →

Lead sponsor

This is the only study on the registry with KMUHIRB-F(I)-20230051 as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years to 75 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Female participants aged 20 to 75 years
  • Diagnosed with overactive bladder (OAB), defined as urinary frequency (≥8 times/day), nocturia (≥2 times/night), and urgency (≥2 episodes/week) for at least 3 months
  • Diagnosed with metabolic syndrome, defined by the presence of at least three of the following criteria:
  • Waist circumference ≥80 cm
  • Blood pressure ≥130/85 mmHg or receiving antihypertensive treatment
  • Fasting glucose ≥100 mg/dL or receiving treatment for diabetes
  • Triglycerides ≥150 mg/dL or receiving lipid-lowering treatment
  • High-density lipoprotein cholesterol \<50 mg/dL
  • No pharmacological or injection treatment for OAB within 3 months prior to enrollment
  • Able to understand and comply with study procedures and questionnaires
  • Willing to provide

Exclusion criteria

Exclusion:

  • History of kidney stones or bladder stones
  • Urinary tract infection within 3 months prior to enrollment or recurrent urinary tract infections (≥3 episodes)
  • Lower urinary tract surgery within 6 months prior to enrollment
  • Known or suspected of the urinary tract
  • Significant bladder outlet obstruction
  • Severe coagulopathy, liver failure, or renal failure
  • Prior pelvic malignancy or pelvic radiation therapy
  • Intravesical injection or electrical stimulation therapy within the past year
  • Substance abuse (drug or alcohol) within the past year
  • Chronic pelvic pain due to other causes
  • Inability to complete study questionnaires or procedures
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    LiESWT Group

    Participants receive low-energy extracorporeal shock wave therapy (LiESWT) applied to the bladder region.

    Device: Low-Energy Extracorporeal Shock Wave Therapy (LiESWT)

  • Sham comparator
    Sham Control Group

    Participants receive a sham procedure that mimics LiESWT without delivering therapeutic energy.

    Device: Sham Shock Wave Therapy

Interventions

  • DeviceLow-Energy Extracorporeal Shock Wave Therapy (LiESWT)

    LiESWT is delivered using a focused shock wave device at an energy flux density of 0.25 mJ/mm², frequency of 3 Hz, and 3,000 pulses per session.

  • DeviceSham Shock Wave Therapy

    The device is applied in the same manner as the active treatment but does not emit therapeutic shock wave energy.

06

What researchers measure

Primary outcomes

  1. Change in Overactive Bladder Symptom Score (OABSS)

    The Overactive Bladder Symptom Score (OABSS; range 0-15, with higher scores indicating more severe symptoms) will be used. The primary outcome is the change in OABSS from baseline to 4, 8, 12, 16, 20, 24 weeks after treatment. Lower scores indicate improvement in symptoms.

    Time frame: Baseline to 24 weeks

Secondary outcomes

  1. Change in International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF)

    The International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF; range 0-21, higher scores indicate worse symptoms).

    Time frame: Baseline to 24 weeks

  2. Change in Urinary Distress Inventory (UDI-6)

    The Urinary Distress Inventory-6 (UDI-6; range 0-100, higher scores indicate greater symptom distress).

    Time frame: Baseline to 24 weeks

  3. Change in maximum urinary flow rate measured by uroflowmetry (Qmax)

    Maximum urinary flow rate (Qmax, mL/s) will be assessed using standard uroflowmetry. Higher values indicate improved urinary flow function.

    Time frame: Baseline to 24 weeks

  4. Change in post-void residual volume measured by bladder ultrasound (PVR)

    Post-void residual (PVR, mL) will be measured using bladder ultrasound immediately after voiding. Lower values indicate improved bladder emptying.

    Time frame: Baseline to 24 weeks

  5. Change in voided volume per micturition assessed by 3-day voiding diary

    Voided volume (mL) will be calculated from a 3-day voiding diary. Higher values indicate improved bladder capacity.

    Time frame: Baseline to 24 weeks

  6. Change in total daily urine volume assessed by 3-day voiding diary

    Total urine volume (mL/day) will be calculated from a 3-day voiding diary.

    Time frame: Baseline to 24 weeks

  7. change in Incontinence Impact Questionnaire short version (IIQ-7)

    The IIQ-7 uses a 0-3 scale to measure how urinary incontinence impacts household chores, physical recreation, entertainment, travel, social activities, emotional health, and feelings of frustration to determine an overall quality-of-life score.

    Time frame: Baseline to 24 weeks

Other outcomes

  1. Incidence of treatment-related adverse events

    Adverse events will be recorded throughout the study period and classified according to severity and relationship to treatment.

    Time frame: Baseline to 24 weeks

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: No — Data available upon reasonable request

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Feb 2025 (actual). Primary completion is estimated for Jun 2026, 16 months after the start.

Of 625 non-industry interventional studies with no phase under Metabolic Syndrome, half reached primary completion within 20 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 41. This study's planned 16 months is below that.

Counting every sponsor, half of 675 studies reached it within 20 months; a quarter within 9 and three quarters within 41.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 23, 2026
First posted
May 4, 2026
StartActual
Feb 10, 2025
Primary completionEst.
Jun 30, 2026
CompletionEst.
Jun 30, 2026
Last update
May 4, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 4, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07563764
Lead sponsor
KMUHIRB-F(I)-20230051
Responsible party
KMUHIRB-F(I)-20230051 (Principal Investigator, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung Medical University Chung-Ho Memorial Hospital) — Sponsor-investigator
First posted
May 4, 2026
Start date
Feb 10, 2025
Primary completion
Jun 30, 2026 (estimated)
Completion
Jun 30, 2026 (estimated)
Last update
May 4, 2026

Study contacts

JIUNHUNG GENG, MD
Contact
u9001090@hotmail.com
+88673121101 ext.6694
Yung-Chin Lee, MD, PHD
Contact
leeyc12345@yahoo.com.tw
+88673121101 ext.6694
Yung-Chin Lee, MD,PHD
principal investigator · Kaohsiung Medical University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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