Safety and Feasibility of the XFLO Expander System (Mercury)
EXPANDER-1
A Clinical Study to Evaluate the Safety and Feasibility (Including First in Human) of the XFLO EXPANDER SYSTEM (EXPANDER-1)
2 other identifiers
interventional
45
4 countries
5
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Nov 2018
Longer than P75 for not_applicable
5 active sites
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
CompletedFirst Submitted
Initial submission to the registry
November 26, 2018
CompletedFirst Posted
Study publicly available on registry
November 29, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
August 1, 2025
CompletedJuly 26, 2022
July 1, 2022
4.1 years
November 26, 2018
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
EXPERIMENTALTreatment group receives intervention with the XFLO Expander System implantation for 1 month, and then retrieved.
Arm-2: Device implantation for 6 months
EXPERIMENTALTreatment group receives intervention with the XFLO Expander System implantation for 6 months, and then retrieved.
Arm-3: Device implantation for 12 months
EXPERIMENTALTreatment group receives intervention with the XFLO Expander System implantation for 12 months, and then retrieved.
Interventions
Implantation and retrieval of the XFLO Expander System in the prostatic urethra to treat benign prostatic hyperplasia (BPH)
Eligibility Criteria
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
- MedeonBio, Inc.lead
Study Sites (5)
Australian Clinical Trials Pty Ltd
Wahroonga, New South Wales, 2076, Australia
University Health Network
Toronto, Ontario, Canada
Brunswick Medical Center
Montreal, Canada
National Center of Urology
Tbilisi, 0144, Georgia
China Medical University Hospital
Taichung, 40447, Taiwan
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Henry Woo, MD
Australian Clinical Trials Pty Ltd
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