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PVP Compared to TURP for the Treatment of Benign Hyperplasia of the Prostate (PVP)

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ClinicalTrials.gov Identifier: NCT00527371
Recruitment Status : Completed
First Posted : September 10, 2007
Last Update Posted : November 21, 2014
Information provided by (Responsible Party):

September 6, 2007
September 10, 2007
November 21, 2014
January 2008
February 2013   (Final data collection date for primary outcome measure)
The primary outcome is the change in International Prostatic Symptom Score (IPSS). [ Time Frame: 6-months after surgery versus baseline. ]
Same as current
Complete list of historical versions of study NCT00527371 on ClinicalTrials.gov Archive Site
  • International Prostatic Symptom Score (IPSS) [ Time Frame: 1, 3, 12 and 24 months post procedure ]
  • Peak or maximum urinary flow rate [ Time Frame: 1, 3 and 6 months post surgery ]
  • Post-void residual volume [ Time Frame: 1, 3, 6 month post procedure ]
  • Length of operation/procedure [ Time Frame: During procedure ]
  • Frequency of blood transfusion [ Time Frame: During procedure ]
  • Change in hemoglobin in recovery room [ Time Frame: Following procedure ]
  • Postoperative serum electrolytes (sodium, creatinine) in recovery room [ Time Frame: Following procedure ]
  • Duration of catheterization [ Time Frame: 10 days after procedure ]
  • Occurrence of urethral stricture or bladder neck contracture requiring re-operation [ Time Frame: up to 2 years after the procedure ]
  • Re-bleed rate requiring hospitalization [ Time Frame: 1 month after procedure ]
  • Prostate-specific antigen (PSA) value [ Time Frame: 3 months follow-up ]
  • Rate of re-operation [ Time Frame: At 1, 6, 12 and 24 months following intervention ]
  • Rate of re-catheterization [ Time Frame: 1, 6, 12 and 24 months following intervention ]
  • Rate of sexual dysfunction (SHIM) and/or retrograde ejaculation (specific question) [ Time Frame: Pre-op, 1, 3, 6 months ]
  • Use of medications for the treatment of bladder outlet obstruction [ Time Frame: 1, 3 and 6 months after intervention ]
  • Long-term durability of PVP and TURP (i.e. readmission, drug therapy) [ Time Frame: At 12 and 24 months after intervention ]
  • IPSS quality of life score (Bother-score) [ Time Frame: Pre-op, 1, 3, 6, 12 and 24 months ]
  • EQ-5D utility score [ Time Frame: Pre-op, 1, 3, 6, 12 and 24 months ]
  • Resource utilization: hospital length of stay, OR time, pain medications, follow-up care (e.g. urologist visits, lab tests) [ Time Frame: Pre-op, 1, 3, 6, 12 and 24 months ]
  • Productivity losses [ Time Frame: Pre-op, 1, 3, 6, 12 and 24 months ]
Difference in clinical efficacy outcomes (e.g., peak urinary flow rate, post-void residual volumes, QOL, sexual function). Complication rates. Reinstitution of bladder medications. Durability of PVP and TRUP. Resource utilization and costs-effectiveness. [ Time Frame: outcome assessment measure time points vary ]
Not Provided
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PVP Compared to TURP for the Treatment of Benign Hyperplasia of the Prostate
Prospective Controlled Trial Comparing Photoselective Vaporization of the Prostate (PVP-120W) to Transurethral Resection of the Prostate (TURP) for the Treatment of Benign Hyperplasia of the Prostate (BPH)
In patients with an enlarged prostate (benign prostatic hyperplasia), is treatment using photoselective vaporization of the prostate (PVP 120 Watt) as effective and cost-effective as the standard treatment of transurethral resection of the prostate (TURP)? A higher-power (120W) laser system has recently been approved by Health Canada for the treatment of an enlarged prostate. This system, which uses laser energy to vaporize the prostate tissue, will be compared with the current standard treatment of transurethral resection of the prostate. This newer generation laser may offer more efficient removal of prostate tissue with fewer complications and may result in clinical and economic benefits compared to the standard treatment. However, there have been no studies comparing the 120W laser with the standard transurethral resection of the prostate. This study will provide currently unavailable information for clinicians and decision makers.
Following a review of treatments for benign prostatic hyperplasia (BPH) by the Medical Advisory Secretariat (MAS) of the Ontario Ministry of Health and Long-Term Care (MOHLTC), the Ontario Health Technology Advisory Committee (OHTAC) recommended that "a registry study be conducted to establish longer term effectiveness and complication rates for PVP given the likelihood of increasing diffusion of this technology". Since then, the Medical Devices Bureau of the Therapeutic Products Directorate, Health Canada, has licensed in April 30, 2007, a 120W-KTP laser system (Greenlight HPS (TM)) for sale in Canada. As several new 120W systems will be operating in Ontario in the coming months, there is an urgent need to evaluate the effectiveness, cost-effectiveness and durability of 120W PVP compared to conventional TURP in the treatment of patients with BPH.
Phase 4
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Benign Prostatic Hyperplasia
  • Device: GreenLight HPS (TM)laser system [Photoselective Vaporization of the prostate (PVP)]
    Photoselective vaporization of the prostate will be performed using the GreenLight HPS (TM)laser system (American Medical Systems), which is a high-power (120W) potassium titanyl phosphate (KTP) laser which was licensed by Health Canada in April 2007.
    Other Name: PVP
  • Procedure: Transurethral resection of the prostate
    Transurethral resection of the prostate will be performed with a continuous flow resectoscope and unipolar cautery using a standard technique.
    Other Name: TURP
  • Experimental: PVP
    Photoselective vaporization of the prostate.
    Intervention: Device: GreenLight HPS (TM)laser system [Photoselective Vaporization of the prostate (PVP)]
  • Active Comparator: TURP
    Transurethral resection of the prostate.
    Intervention: Procedure: Transurethral resection of the prostate

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
October 2013
February 2013   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Male over the age of 40
  • Diagnosed with symptomatic/obstructive symptoms secondary to BPH requiring surgical intervention as determined by their urologist
  • Experienced lower urinary tract symptoms (LUTS) secondary to BPH > 3 months in duration
  • IPSS value of > 12
  • Peak urinary flow < 15mL/sec on voided volume (minimum of 150 ml)
  • Prostate size, as measured by transrectal ultrasonography (TRUS), less than 100cc in volume
  • American Society of Anesthesiology (ASA) classification of physical status, class 1-3
  • Able to read, understand, and sign the Informed Consent
  • Willing and able to comply with all follow-up requirements including multiple follow-up visits

Exclusion Criteria:

  • Transvesically measured post-void residual volume >400 mL
  • Currently in urinary retention
  • Chronic urinary retention
  • Medications impairing bladder contractibility
  • Uncorrectable bleeding disorders or long- term anticoagulation that cannot be stopped
  • Recent myocardial infarction or coronary artery stent placement
  • Any of the following diseases which appear to involve the bladder: myasthenia gravis, diabetes neuropathy, multiple sclerosis, spinal cord injury or Parkinson disease
  • Any patient with idiopathic atonic bladder
  • Major pelvic fractures that involved damage to the external urinary sphincter
  • Recently completed definitive radiation therapy for prostate cancer
  • Active localized or systemic infections; including active urinary tract infection
  • Active cystolithiasis, urethral strictures, bladder neck contracture, or acute prostatitis affecting bladder function
  • If patient's PSA value > PSA age-adjusted normal value, patient needs to have a negative biopsy before participating in the study
  • Confirmed malignancy of the prostate
  • Bladder cancer treated with transurethral resection of bladder cancer (TURBT) within 12 months or any patients treated with Bacillius Calmette-Guerin (BCG)
  • Bilateral hydronephrosis on renal ultrasound
  • Urethral strictures or a residual volume >400 ml
  • Immunocompromised
  • Previous TURP
Sexes Eligible for Study: Male
41 Years and older   (Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
HTA 010-0706-01
Not Provided
Not Provided
Jean-Eric Tarride, St. Joseph's Healthcare Hamilton
St. Joseph's Healthcare Hamilton
Ontario Ministry of Health and Long Term Care
Study Chair: Jean-Eric Tarride, PhD Program for Assessment of Technology in Health, St. Joseph's Healthcare/McMaster University
Principal Investigator: Gary McIsaac, MD Trillium Health Centre
Principal Investigator: Edward Woods, MD The Scarborough Hospital
Principal Investigator: Paul Whelan, MD McMaster Institute of Urology at St. Joseph's Healthcare Hamilton
St. Joseph's Healthcare Hamilton
November 2014

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP