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NCT Number: NCT04838769

REZŪM vs. Dual Drug Therapy for Symptomatic Benign Prostatic Hyperplasia in Sexually Active Men

The study objective is to compare water vapor thermotherapy with the REZŪM™ System to dual drug therapy for the treatment of symptomatic benign prostatic hyperplasia refractory to alpha-blocker monotherapy in sexually active men.

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This study is active but is not currently recruiting participants.

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Key information

Age range

45 year and older

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Epworth Healthcare, Melbourne, Australia

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About this study

STUDY OBJECTIVE - To compare water vapor thermotherapy with the REZŪM™ System to dual drug therapy for the treatment of symptomatic benign prostatic hyperplasia refractory to alpha-blocker monotherapy in sexually active men.

STUDY DESIGN - Multicenter open-label randomized controlled parallel-group post-market trial.

STUDY TREATMENTS AND RANDOMIZATION - Subjects will be randomly assigned to REZŪM or dual drug therapy treatments; 1:1 randomization via the electronic data capture (EDC) system. Both treatments are commercially available. Subjects randomized to receive the REZŪM treatment will receive standardized treatment and subjects randomized to dual drug therapy will receive the local formulary preferred choice of urinary selective alpha blocker and 5-alpha reductase inhibitor.

VISIT SCHEDULE - Study visits are at: enrollment/baseline, treatment, 3 months, 6 months, and yearly follow-up through 2 years.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Sexually active male subjects ≥ 45 years of age who have persistent non-neurogenic lower urinary tract symptoms refractory to first-line treatment with single agent Alpha Adrenoceptor Antagonist therapy
  • Subject is willing and able to answer all domains of MSHQ
  • Completed IPSS questionnaire with score ≥ 13 within 6 months prior to enrollment
  • Peak urinary flow rate (Qmax): ≤ 15 ml/sec with minimum voided volume of ≥ 150 ml within 6 months prior to enrollment
  • Post-void residual (PVR) ≤250 ml within 6 months prior to enrollment
  • Prostate volume ≥ 30 ml as measured by transrectal ultrasound or Magnetic Resonance Imaging within 3 months prior to enrollment
  • Subject is willing and capable of providing informed consent
  • Subject is willing and capable of participating in all visits associated with this study at an approved clinical study site and at the intervals defined by this Clinical Investigational Plan (CIP)
  • France subjects only: subjects must be affiliated to national security insurance

Exclusion criteria

  • Inability to participate in full duration of study
  • Prior surgical treatment for BPH
  • Increased risk of bleeding
  • Presence of Genitourinary Cancer or other pelvic cancer
  • Functional issues with bladder
  • Presence of active infection in genitourinary tract
  • Structural and Anatomic issues with urinary tract and renal function
  • Concomitant Drug Therapy
  • Temporal restraints and risks for general anaesthesia or comorbidity that would elevate risk of participation

Treatment and study plan

Rezūm

Device

Subjects randomized to receive the REZŪM treatment will receive standardized treatment, following the Instruction for Use.

alpha blocker and 5-alpha reductase inhibitor

Drug

Subjects assigned to dual drug therapy will be treated with the local formulary preferred choice of commercially available urinary selective alpha blocker and 5-alpha reductase inhibitor. This arm will therefore represent local standard of care.

Other names: Dual Drug Therapy

Primary outcomes

  1. International Prostate Symptom Score (IPSS) change

    Time frame: From Baseline to 12 months

    Primary Statistical Hypothesis: Change in IPSS score will be compared between groups. IPSS score ranges from 0 to 35 with higher scores indicating worse symptoms.

  2. Male Sexual Health Questionnaire (MSHQ) total score change

    Time frame: From Baseline to 12 months

    Change in MHSQ score will be compared between groups. MHSQ score ranges from 0 to 125 with higher scores indicating better outcomes.

Secondary outcomes

  1. Disease Progression

    Time frame: End of available follow-up, up to 24 months

    Disease progression, defined as occurrence of any of the following:

    • Surgical retreatment for LUTS/BPH
    • Urinary retention requiring urinary catheterization after 90 days post-treatment
    • IPSS increase from baseline by ≥ 4 points
    • Introduction of a new drug agent to treat LUTS/BPH

Sponsors and collaborators

Lead sponsor

Boston Scientific Corporation

Industry

Registry information

Official study title

Water Vapor Thermotherapy vs. Combination Pharmacotherapy for Symptomatic Benign Prostatic Hyperplasia Refractory to Alpha Blocker Monotherapy in Sexually Active Men: A Multicenter Randomized Controlled Trial

Acronym: VAPEUR

Important dates

Study start
2021
Primary completion
2025
Study completion
2027
First posted
Apr 9, 2021
Registry last updated
Jul 13, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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