CClinicalTrials.gg
Status unknownNCT03448510Updated Feb 28, 2018

Irreversible Electroporation Versus Standard Medication for Benign Prostatic Obstruction

A Phase 2 interventional study of Irreversible electroporation and Standard Medication in Lower Urinary Tract Symptoms, sponsored by Changhai Hospital. Status unknown at 1 site in China. Open to male participants aged 45 Years and older. Per ClinicalTrials.gov, last updated 2018-02-28.

Sponsored by Changhai Hospital · Phase 2, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Feb 2018), so the status shown — last known as Not yet recruiting — may be out of date.
Phase
Phase 2
Study type
Interventional
Enrollment
100
Allocation
Randomized
Ages
45 Years and older
Sex
Male
01

Study summary

Irreversible electroporation (IRE) is a novel ablation modality using electric pulses to create nanoscale defects in the cell membrane. It has been verified to be safe on the treatment of prostate, lung, liver and kidney masses. The present is a randomized, controlled trial, with a main purpose of looking into the safety and feasibility of irreversible electroporation for patients with benign prostatic obstruction.

Read the detailed description

Benign prostatic obstruction (BPO) is the main reason to cause lower urinary tract symptoms (LUTS) in aged male. Oral medications, such as,α1-adrenoceptor antagonist and 5α-reductase inhibitors are the mainstay treatment options. However, some patients can not tolerate long-term use, due to either side effects or limited efficacy. Though transurethral resection or enucleation of prostate usually achieve significant symptom improvement, it's an end stage procedure and it is only reserved for carefully selected patients.

The development of focal ablative therapy yields minimally invasive treatment option for primary tumors such as the liver, lung, pancreas, kidney, and prostate. Among the novel techniques are cryoablation, radiofrequency ablation (RFA), microwave ablation, and high-intensity focused ultrasonography. Irreversible electroporation (IRE) is a one of the ablation modalities using electric pulses to create nanoscale defects in the cell membrane. IRE is not dependent on thermal energy and is therefore causing minimum damage to the blood vessels, nerves and tissue architecture. The present is a randomized, controlled trial, with a main purpose of looking into the safety and feasibility of irreversible electroporation for patients with benign prostatic obstruction.

02

Conditions studied

  • Lower Urinary Tract Symptoms

Keywords

  • lower urinary tract symptoms
  • male
  • benign prostatic obstruction
  • irreversible electroporation
  • urodynamics
03

Who can participate

Ages eligible
45 Years and older
Sexes eligible
Male
Accepts healthy volunteers
No

Inclusion criteria

  1. Male, 45 years or older.
  2. The presence of voiding symptoms, i.e. slow stream, intermittent stream, hesitancy, straining, etc.
  3. Qmax ≥ 5 mL/s and ≤ 15 mL/s with minimum voided volume of 125 mL or more during flow study.
  4. The presence of bladder outlet obstruction during pressure-flow study.
  5. International Prostatic Symptom Score (IPSS) ≥ 12 at screening.
  6. Prostate volume ≥ 30 ml (using a transrectal ultrasound approach).
  7. Total serum prostatic specific antigen (PSA) ≥ 1.5 ng/mL and ≤ 10 ng/mL at screening.
  8. Subject is able to communicate and complete the questionnaires properly.
  9. Written informed consent.

Exclusion criteria

Exclusion Criteria:

  1. Diagnosis or suspicion of bladder, prostate, urethral or pelvic tumor.
  2. Patients with arrhythmia or history of cardiac pacemaker implantation.
  3. Known lower urinary tract or pelvic surgical history.
  4. Voiding symptoms as a result of urethral stricture, stone diseases, chronic prostatitis, space-occupying lesions etc.
  5. Known neurogenic or congenital lower urinary tract dysfunction.
  6. Rigid or flexible cystoscopy examination within the past 7 days at screening.
  7. Existence of anatomical abnormalities of the urinary tract (e.g. diverticulum of the bladder or urethra, ectopic ureteral orifice etc.).
  8. The presence of acute conditions, such as, urinary tract infection, fever, heart failure etc.
  9. Patients with poor compliance or cognitive competence.
04

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
100 participants (estimated)

Study arms

  • Experimental
    Irreversible electroporation treatment

    Subjects will receive irreversible electroporation of the prostate

    Device: Irreversible electroporation

  • Active comparator
    standard medication group

    Subjects will receive either α-blocker or 5α reductase monotherapy or combination therapy.

    Drug: Standard Medication

Interventions

  • DeviceIrreversible electroporation

    The subject will receive Irreversible electroporation procedure which is a novel ablation modality using electric pulses to create nanoscale defects in the cell membrane.

  • DrugStandard Medication

    The subject will be prescribed with α-blocker or/and 5α-reductase inhibitors.

05

What researchers measure

Primary outcomes

  1. The changes of maximum flow rate (ml/s) between baseline and during follow-up

    Maximum flow rate will be measured using urinary flow study

    Time frame: Measured at baseline and 1, 3, 6 months during follow-up

Secondary outcomes

  1. The changes of IPSS scores between baseline and during follow-up

    Measured using a standard IPSS scoring system

    Time frame: Measured at baseline and 1, 3, 6 months during follow-up

  2. The changes of IIEF scores between baseline and during follow-up

    Measured using a standard IIEF scoring system

    Time frame: Measured at baseline and 1, 3, 6 months during follow-up

  3. The changes of maximum detrusor pressure at maximum flow rate between baseline and during follow-up

    The data will be captured during pressure flow study

    Time frame: Measured at baseline and 3, 6 months during follow-up

  4. The changes of post void residual volume (ml) between baseline and follow-up

    Post void residual volume (ml) will be measured via ultrasound

    Time frame: Measured at baseline and 1, 3, 6 months during follow-up

  5. The changes of prostate volume (ml) between baseline and follow-up

    Prostate volume (ml) will be measured using transrectal prostate ultrasound and calculated as: prostate volume (ml) = length (mm) \* width (mm) \* height (mm) \* 0.52.

    Time frame: Measured at baseline and 1, 3, 6 during follow-up

06

Study locations

1 site
  • Changhai Hospital
    Shanghai, Shanghai 200433, China
07

References and documents

Publications

  • Wagstaff PG, Buijs M, van den Bos W, de Bruin DM, Zondervan PJ, de la Rosette JJ, Laguna Pes MP. Irreversible electroporation: state of the art. Onco Targets Ther. 2016 Apr 22;9:2437-46. doi: 10.2147/OTT.S88086. eCollection 2016. PubMed 27217767 ↗

Study documents

  • Study protocol · Feb 12, 2018

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

08

Registry details

Key details

Study ID
NCT03448510
Lead sponsor
Changhai Hospital
Responsible party
Yinghao Sun (MD, PhD, Changhai Hospital) — Principal investigator
First posted
Feb 28, 2018
Start date
Apr 1, 2018 (estimated)
Primary completion
Jan 31, 2019 (estimated)
Completion
May 30, 2019 (estimated)
Last update
Feb 28, 2018

Oversight

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

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This study is status unknown, as verified in Feb 2018. You cannot join it, but the record below documents what was studied.

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