ClinicalTrials.gg
CompletedNCT07776158mPUL-ZAUpdated Aug 20, 2026

Efficacy and Safety of Modified Prostatic Urethral Lift (mPUL-ZA) for Benign Prostatic Hyperplasia

An interventional study of Modified Prostatic Urethral Lift Using a Zero-Angle Firing and Needle-Guided Puncture Technique for Benign Prostatic Hyperplasia in BPH (Benign Prostatic Hyperplasia), sponsored by Qing Yuan. Completed at 1 site in China. Open to male participants aged 50 Years to 80 Years. Per ClinicalTrials.gov, last updated 2026-08-20.

Sponsored by Qing Yuan · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 3 years 2 months after the study started (first participant enrolled Jun 2023, registered Aug 2026).
Phase
Not applicable
Study type
Interventional
Enrollment
12
Allocation
Not applicable
Ages
50 Years to 80 Years
Sex
Male
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 53 studies in Prostatic Hyperplasia with a site in China — 22 open to participants now, 22 under way, 1 of them phase 3. Prostatic Hyperplasia · China.

Enrollment
39th of 40
12 · median 120
Started
2023
with 2 others
No phase
29 of 53
14 open now
Registered
51st of 53
by date
Lead sponsor
2 of 53
Qing Yuan

Among the 53 studies in Prostatic Hyperplasia with a site in China, this one is the 39th largest by enrollment of the 40 interventional ones that give a count, is one of 3 that started in 2023, is one of 29 with no phase, and was the 51st registered.

Prostatic Hyperplasia

828 studies on the registry are indexed under Prostatic Hyperplasia; 179 are open to participants now.

Browse Prostatic Hyperplasia studies →

Open to participants now

22 of the 53 studies in Prostatic Hyperplasia with a site in China are open now. Recruiting first, the newest first:

17 more — sign in →

All 22 open studies →

A study can be open while its sites in China have not opened yet or have stopped. Only those recruiting at a site in China →

Who these studies take

Of the 102 Prostatic Hyperplasia studies recruiting now, 70 (69%) set no upper age limit and 4 (4%) stop at 75 or younger; 7 take children under 18; 7 take healthy volunteers.

This study: 50 Years to 80 Years · male · no healthy volunteers.

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02

Study summary

Abstract

Background:

Transurethral prostatic suspension and expansion, internationally referred to as prostatic urethral lift (PUL), is a minimally invasive treatment for lower urinary tract symptoms associated with benign prostatic hyperplasia (BPH). However, implant deployment at the prostatic apex may be technically difficult because of limited lateral operating space and obstruction by the pubic arch. A modified technique involving zero-angle firing and needle-guided puncture was developed to facilitate implant placement in this region.

Objective:

This study aims to evaluate the feasibility, preliminary efficacy, and safety of the modified transurethral prostatic suspension and expansion procedure using zero-angle firing and needle-guided puncture in men with BPH-related lower urinary tract symptoms.

Methods:

This is a prospective, single-center, single-arm, open-label exploratory interventional study involving 12 male participants. The principal eligibility criteria include an age of 50-80 years, a prostate volume of 30-80 mL, an International Prostate Symptom Score (IPSS) greater than 12, a maximum urinary flow rate (Qmax) of 15 mL/s or less with a voided volume of at least 125 mL, and a post-void residual urine volume (PVR) of less than 350 mL. Patients with previous prostate surgery, confirmed or suspected prostate cancer, neurogenic bladder, urethral stricture, severe coagulation disorders, or anticoagulant therapy that cannot be safely discontinued or adjusted will be excluded.

All participants will undergo the modified transurethral prostatic suspension and expansion procedure. Implants will be deployed in the proximal and middle portions of the prostate using the conventional technique. At the prostatic apex, particularly when lateral rotation is restricted or pubic arch interference is anticipated, the delivery device will be maintained at the urethral midline in a neutral, zero-angle orientation. The needle will be fired in this position, followed by incremental manual compression to facilitate adequate tissue capture and needle-guided penetration of the prostatic capsule. The implant will then be tensioned and deployed.

Participants will be evaluated at baseline and followed at 14 days, 30 days, 90 days, and 12 months after surgery. The primary outcome is the change in IPSS from baseline to 90 days after surgery. Secondary outcomes include changes in quality-of-life score, Qmax, PVR, and Sexual Health Inventory for Men score; technical success; operative time; number of implants; estimated blood loss; catheterization duration; and length of hospital stay. Safety outcomes include gross hematuria, urinary urgency, dysuria, urinary retention, re-catheterization, urinary tract infection, urethral stricture, readmission, device-related adverse events, secondary intervention, and reoperation.

Continuous outcomes will be summarized using appropriate descriptive statistics and compared between baseline and follow-up using a paired-samples t-test or Wilcoxon signed-rank test, depending on the distribution of paired differences. Categorical variables will be reported as frequencies and percentages. All statistical tests will be two-sided, with a significance level of 0.05. Given the exploratory nature and small sample size, effect estimates and confidence intervals will be emphasized alongside P values.

Expected significance:

This study is expected to provide preliminary evidence regarding whether zero-angle firing and needle-guided puncture can facilitate implant deployment at the prostatic apex while improving urinary symptoms, urinary flow, and quality of life without adversely affecting erectile function. The findings may support the design of subsequent multicenter, controlled studies with larger sample sizes.

Keywords:

benign prostatic hyperplasia; lower urinary tract symptoms; transurethral prostatic suspension and expansion; prostatic urethral lift; zero-angle firing; needle-guided puncture; minimally invasive treatment

Registration information:

Study period: June 1, 2023 to December 31, 2023; ethics approval date: August 31, 2023; ethics approval number: S2023-493-01; principal investigator: Qing Yuan; planned sample size: 20 participants; registration status: retrospectively registered.

Read the detailed description

Abstract

Background:

Transurethral prostatic suspension and expansion, internationally referred to as prostatic urethral lift (PUL), is a minimally invasive treatment for lower urinary tract symptoms associated with benign prostatic hyperplasia (BPH). However, implant deployment at the prostatic apex may be technically difficult because of limited lateral operating space and obstruction by the pubic arch. A modified technique involving zero-angle firing and needle-guided puncture was developed to facilitate implant placement in this region.

Objective:

This study aims to evaluate the feasibility, preliminary efficacy, and safety of the modified transurethral prostatic suspension and expansion procedure using zero-angle firing and needle-guided puncture in men with BPH-related lower urinary tract symptoms.

Methods:

This is a prospective, single-center, single-arm, open-label exploratory interventional study involving 12 male participants. The principal eligibility criteria include an age of 50-80 years, a prostate volume of 30-80 mL, an International Prostate Symptom Score (IPSS) greater than 12, a maximum urinary flow rate (Qmax) of 15 mL/s or less with a voided volume of at least 125 mL, and a post-void residual urine volume (PVR) of less than 350 mL. Patients with previous prostate surgery, confirmed or suspected prostate cancer, neurogenic bladder, urethral stricture, severe coagulation disorders, or anticoagulant therapy that cannot be safely discontinued or adjusted will be excluded.

All participants will undergo the modified transurethral prostatic suspension and expansion procedure. Implants will be deployed in the proximal and middle portions of the prostate using the conventional technique. At the prostatic apex, particularly when lateral rotation is restricted or pubic arch interference is anticipated, the delivery device will be maintained at the urethral midline in a neutral, zero-angle orientation. The needle will be fired in this position, followed by incremental manual compression to facilitate adequate tissue capture and needle-guided penetration of the prostatic capsule. The implant will then be tensioned and deployed.

Participants will be evaluated at baseline and followed at 14 days, 30 days, 90 days, and 12 months after surgery. The primary outcome is the change in IPSS from baseline to 90 days after surgery. Secondary outcomes include changes in quality-of-life score, Qmax, PVR, and Sexual Health Inventory for Men score; technical success; operative time; number of implants; estimated blood loss; catheterization duration; and length of hospital stay. Safety outcomes include gross hematuria, urinary urgency, dysuria, urinary retention, re-catheterization, urinary tract infection, urethral stricture, readmission, device-related adverse events, secondary intervention, and reoperation.

Continuous outcomes will be summarized using appropriate descriptive statistics and compared between baseline and follow-up using a paired-samples t-test or Wilcoxon signed-rank test, depending on the distribution of paired differences. Categorical variables will be reported as frequencies and percentages. All statistical tests will be two-sided, with a significance level of 0.05. Given the exploratory nature and small sample size, effect estimates and confidence intervals will be emphasized alongside P values.

Expected significance:

This study is expected to provide preliminary evidence regarding whether zero-angle firing and needle-guided puncture can facilitate implant deployment at the prostatic apex while improving urinary symptoms, urinary flow, and quality of life without adversely affecting erectile function. The findings may support the design of subsequent multicenter, controlled studies with larger sample sizes.

Keywords:

benign prostatic hyperplasia; lower urinary tract symptoms; transurethral prostatic suspension and expansion; prostatic urethral lift; zero-angle firing; needle-guided puncture; minimally invasive treatment

Registration information:

Study period: June 1, 2023 to December 31, 2023; ethics approval date: August 31, 2023; ethics approval number: S2023-493-01; principal investigator: Qing Yuan; planned sample size: 20 participants; registration status: retrospectively registered.

03

Conditions studied

  • BPH (Benign Prostatic Hyperplasia)

Keywords

  • benign prostatic hyperplasia
  • lower urinary tract symptoms
  • prostatic urethral lift
  • zero-angle firing
  • needle-guided puncture
  • minimally invasive treatment
04

Who can participate

Ages eligible
50 Years to 80 Years
Sexes eligible
Male
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

  • Male patients aged 50 to 80 years old;
  • Clinically diagnosed with benign prostatic hyperplasia accompanied by lower urinary tract symptoms;
  • Prostate volume measured by transabdominal or transrectal ultrasonography ranges from 30 mL to 80 mL;
  • International Prostate Symptom Score (IPSS) > 12 points;
  • Maximum urinary flow rate (Qmax) ≤ 15 mL/s;
  • Voided volume ≥ 125 mL during uroflowmetry examination;
  • Post-void residual urine volume (PVR) measured by ultrasonography \< 350 mL;
  • Having sexual intercourse within 6 months prior to enrollment;
  • Sexual Health Inventory for Men (SHIM) score > 6 points;
  • Preoperative clinical assessment confirms preservation of antegrade ejaculation;
  • Judged by the investigator to be eligible for prostatic urethral lift;
  • Able to understand the study content and voluntarily sign the written form;
  • Able to complete all scheduled follow-up visits in accordance with the study protocol.

Exclusion criteria

Exclusion Criteria:

  • Urethral conditions that preclude insertion of a 20F cystoscopic scope;
  • History of TURP, laser surgery, pelvic surgery, or radiotherapy;
  • Total prostate-specific antigen (tPSA) > 10 ng/mL, or history of prostate cancer or bladder cancer;
  • Neurogenic bladder, urethral stricture, severe coagulopathy, or concurrent use of anticoagulants for the procedure;
  • Intra-prostatic protrusion (IPP) > 1 cm;
  • Other medical conditions or comorbidities contraindicating HoLEP or PUL;
  • Refusal to disclose sexual function status.
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.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
12 participants (actual)

Study arms

  • Experimental
    Single Surgical Intervention

    All enrolled patients receive unified surgical intervention, with standardized follow-up to observe clinical efficacy and safety indicators.

    Procedure: Modified Prostatic Urethral Lift Using a Zero-Angle Firing and Needle-Guided Puncture Technique for Benign Prostatic Hyperplasia

Interventions

  • ProcedureModified Prostatic Urethral Lift Using a Zero-Angle Firing and Needle-Guided Puncture Technique for Benign Prostatic Hyperplasia

    Modified Prostatic Urethral Lift Using a Zero-Angle Firing and Needle-Guided Puncture Technique for Benign Prostatic Hyperplasia

06

What researchers measure

Primary outcomes

  1. International Prostate Symptom Score (IPSS) change from baseline

    The IPSS score ranges from 0 to 35 points; higher scores indicate more severe lower urinary tract symptoms.

    Time frame: Intraoperative period

  2. Quality of life (QoL) score change from baseline

    QoL score ranges from 0 to 6 points; higher scores indicate poorer quality of life

    Time frame: intraoperative period

  3. Maximum urinary flow rate (Qmax) change from baseline

    Unit: ml/s; the higher the value, the better the urination function

    Time frame: Intra-operative period

07

Study locations

1 site
  • Chinese PLA Gerneral Hospital
    Beijing, Beijing Municipality 100000, China
08

References and documents

Individual participant data

Plan to share: No

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

Ran from Jun 2023 to primary completion in Dec 2023, 6 months.

Of 153 non-industry interventional studies with no phase under Prostatic Hyperplasia, half reached primary completion within 25 months of starting (the median), counting those still running; a quarter within 15 and three quarters within 48. This study's 6 months is below that.

Counting every sponsor, half of 205 studies reached it within 26 months; a quarter within 15 and three quarters within 48.

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

Registered
Aug 8, 2026
First posted
Aug 20, 2026
StartActual
Jun 1, 2023
Primary completionActual
Dec 31, 2023
CompletionActual
Nov 27, 2024
Last update
Aug 20, 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 Aug 20, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07776158
Lead sponsor
Qing Yuan
Responsible party
Qing Yuan (Chief Physician, Chinese PLA General Hospital) — Sponsor-investigator
First posted
Aug 20, 2026
Start date
Jun 1, 2023
Primary completion
Dec 31, 2023
Completion
Nov 27, 2024
Last update
Aug 20, 2026

Oversight

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

Not currently enrolling

This study is completed, as verified in Jun 2026. You cannot join it, but the record below documents what was studied.

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