NCT03758222

Brief Summary

To demonstrate the safety and feasibility of the Mercury Expander system and procedure to treat patients with lower urinary tract symptoms (LUTS) secondary to urinary outflow obstruction from benign prostatic hyperplasia.

Trial Health

47
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
45

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Nov 2018

Longer than P75 for not_applicable

Geographic Reach
4 countries

5 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 7, 2018

Completed
19 days until next milestone

First Submitted

Initial submission to the registry

November 26, 2018

Completed
3 days until next milestone

First Posted

Study publicly available on registry

November 29, 2018

Completed
4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2022

Completed
2.7 years until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2025

Completed
Last Updated

July 26, 2022

Status Verified

July 1, 2022

Enrollment Period

4.1 years

First QC Date

November 26, 2018

Last Update Submit

July 25, 2022

Conditions

Outcome Measures

Primary Outcomes (2)

  • Freedom from Unanticipated adverse device effects (UADEs)

    Measure any device or procedure related adverse events

    1 month (Arm-1)

  • Freedom from Unanticipated adverse device effects (UADEs)

    Measure any device or procedure related adverse events

    6 months (Arm-2)

Secondary Outcomes (4)

  • Freedom from Unanticipated adverse device effects (UADEs)

    7 months (Arm-1)

  • Freedom from Unanticipated adverse device effects (UADEs)

    12 months (Arm-2)

  • Change in International Prostate Symptom Score (IPSS)

    1 month and 7 months (Arm-1)

  • Change in International Prostate Symptom Score (IPSS)

    6 and 12 months (Arm-2)

Study Arms (3)

Arm-1: Device implantation for 1 month

EXPERIMENTAL

Treatment group receives intervention with the XFLO Expander System implantation for 1 month, and then retrieved.

Device: XFLO Expander System

Arm-2: Device implantation for 6 months

EXPERIMENTAL

Treatment group receives intervention with the XFLO Expander System implantation for 6 months, and then retrieved.

Device: XFLO Expander System

Arm-3: Device implantation for 12 months

EXPERIMENTAL

Treatment group receives intervention with the XFLO Expander System implantation for 12 months, and then retrieved.

Device: XFLO Expander System

Interventions

Implantation and retrieval of the XFLO Expander System in the prostatic urethra to treat benign prostatic hyperplasia (BPH)

Also known as: Mercury
Arm-1: Device implantation for 1 monthArm-2: Device implantation for 6 monthsArm-3: Device implantation for 12 months

Eligibility Criteria

Age50 Years+
Sexmale(Gender-based eligibility)
Gender Eligibility DetailsBenign prostatic hyperplasia (BPH) is a male disease
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male gender
  • Age ≥ 50 years
  • Prostate volume 30 - 80 cc by Abdominal Ultrasound (AUS) or Trans Rectal Ultrasound (TRUS)
  • Prostatic urethra length of 2.0-6.0 cm, as measured from bladder neck to verumontanum, using cystoscopy (or prostate length from bladder neck to external sphincter of 2.0-8.0 cm during screening visit, using ultrasound).
  • Medication history
  • Not on BPH related medication for the past 6 months.
  • If on BPH related medication:
  • On 5-alpha-reductase inhibitors (ARIs), the patient must be on the medication for at least 3 months with a stable voiding pattern
  • On alpha-blockers, the patient must be on the medication for at least 3 weeks with a stable voiding pattern
  • Patients with symptomatic BPH and related lower urinary tract symptoms (LUTS):
  • With International Prostate Symptom Score (IPSS) \> 13; Qmax \< 12 mL/sec on a voided volume ≥125 mL; Post-void residual (PVR) \< 250 mL; QoL score ≥ 3

You may not qualify if:

  • Previous BPH procedure
  • Median prostatic lobe or high bladder neck
  • Urethral stricture, meatal stenosis, or bladder neck obstruction - either current, or recurrent requiring 2 or more dilatations
  • Elevated Prostate Specific Antigen (PSA) ≥ 10 ng/mL unless negative biopsy within last 6 months, or a positive biopsy showing cancer
  • Cystolithiasis within the prior 3 months
  • History of neurogenic bladder or urinary retention with PVR \>1000mL.
  • Serum creatinine \>1.8 mg/dl or upper-tract disease which compromises renal function
  • Current or recent Urinary Tract Infection (UTI) or disease
  • Known allergy to nickel
  • Life expectancy of less than 24 months
  • Known coagulopathies or subject on anticoagulants or antiplatelets other than aspirin ≤ 100 mg (unless antiplatelets are withheld minimum 3 days prior to procedure)
  • Anticipated need for additional surgery or treatments for comorbidities during the study period.
  • Current gross hematuria
  • Other co-morbidities that could impact the study results
  • Unable or unwilling to complete all required questionnaires and follow-up assessments
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (5)

Australian Clinical Trials Pty Ltd

Wahroonga, New South Wales, 2076, Australia

Location

University Health Network

Toronto, Ontario, Canada

Location

Brunswick Medical Center

Montreal, Canada

Location

National Center of Urology

Tbilisi, 0144, Georgia

Location

China Medical University Hospital

Taichung, 40447, Taiwan

Location

MeSH Terms

Conditions

Prostatic Hyperplasia

Condition Hierarchy (Ancestors)

Prostatic DiseasesGenital Diseases, MaleGenital DiseasesUrogenital DiseasesMale Urogenital Diseases

Study Officials

  • Henry Woo, MD

    Australian Clinical Trials Pty Ltd

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 26, 2018

First Posted

November 29, 2018

Study Start

November 7, 2018

Primary Completion

December 1, 2022

Study Completion

August 1, 2025

Last Updated

July 26, 2022

Record last verified: 2022-07

Locations