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Completed

NCT Number: NCT02206243

Embozene® Microspheres for Prostatic Arterial Embolization in Patients With Symptomatic Benign Prostatic Hyperplasia

The purpose of this observational study is to evaluate the prostatic arterial embolization (PAE) with Embozene® Microspheres (Boston Scientific) in sphere sizes of 250 µm for the treatment of symptomatic benign prostatic hyperplasia (BPH).

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Key information

Age range

40 year and older

Sex eligibility

Male

Study type

Observational

Primary location

Department of Radiology, University Hospital Jena

Jena, Thuringia, 07740, Germany

About this study

EmboProstate is an observational study that collects data of patients with benign prostatic hyperplasia that are treated with 250 µm Embozene ® Microspheres (Boston Scientific). The study evaluates the efficacy and safety of the microspheres for prostatic arterial embolization for benign prostata hyperplasia treatment. 10 adult male subjects will be enrolled in this study. If eligible patients are recruited, they will undergo the prostate artery embolization procedure in our radiology department. Once the catheter is placed in the prostate artery, a fluid containing thousands of tiny particles (microspheres) is injected through the catheter into these small arteries which nourish the prostate. The injected embospheres will slow the blood flow to the prostate reducing urinary tract symptoms caused by BPH. Within one week after PAE as well as after one, three and six months post-procedure an MRI examination ill occur. A follow-up visit using a questionnaire is due after 6 months.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • male
  • adults > 40 years old
  • severe symptomatic BPH with IPSS > 18 and/or QoL > 3 or maximum urinary flow rate (Qmax) ≤ 15 ml/sec or transurethral catheter for retention
  • no improvement after or intolerance of medical treatment for at least six months
  • prostatic volume > 30 cm³

Exclusion criteria

  • female
  • less than 40 years old
  • eGFR < 45 ml/min * m²
  • suspicion of prostatic malignancy
  • prostatic malignancy
  • acute prostatitis or cystitis
  • hydronephrosis
  • bladder stone or bladder diverticulum
  • urethral stenosis
  • major surgery within 4 weeks prior to the screening visit
  • active clinically serious infection
  • progressive arteriosclerosis
  • contraindications against angiography

Treatment and study plan

Embozene Microspheres

Drug

Intraarterial application

Other names: Vascular embolization

Primary outcomes

  1. Symptomatic improvement of BPH symptoms (= International Prostate Symptom Score (IPSS) < 18 and reduction > 25% QoL (Quality of Life) < 4 & reduction ≥ & / or Qmax > 15 ml/s & increase of Qmax ≥ 3,0ml/s) at 6 and 12 months post intervention

    Time frame: Baseline, follow-up after 1 months, 6 months, 12 months, 24 months

    Improvement of feeling of incomplete bladder emptying, frequency, intermittency, urgency, weak stream, straining and nocturia

Secondary outcomes

  1. Evaluate the safety of prostate artery embolization (PAE) for the treatment of lower urinary tract symptoms (LUTS) attributed to benign prostatic hyperplasia (BPH)

    Time frame: Within 1st week after PAE and follow-up after 1 months, 6 months, 12 months, 24 months

    The number and the severity of adverse events will be recorded to evaluate the safety of prostate artery embolization. Events will be reported by subjects within the 1st week after PAE and at follow-up after 6 months.

Other outcomes

  1. Change in Qmax (reduction of postvoid residual volume)

    Time frame: Follow-up after 6 months

    Measure of urine flow rate. Q max = max flow rate

  2. Reduction of prostate volume determined by volumetric measurement (MRI / transrectal Ultrasound)

    Time frame: Follow up MRI examinations: within the first week after PAE, 1, 3 and 6 months after PAE

    Measuring the percentage of prostate tissue devascularized, based on contrast-enhanced MRI by estimating the prostate volume and the estimated portion that is non-perfused on MRI.

Sponsors and collaborators

Lead sponsor

Jena University Hospital

Other

Collaborators

  • Boston Scientific Corporation

Registry information

Official study title

An Observational Study to Evaluate the Safety and Efficacy of Embozene® Microspheres for Prostatic Arterial Embolization in Patients With Symptomatic Benign Prostatic Hyperplasia

Acronym: EmboProstate

Important dates

Study start
2014
Primary completion
2018
Study completion
2019
First posted
Aug 1, 2014
Registry last updated
Jun 14, 2019

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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