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WithdrawnNCT03851952ROBUST IVUpdated Jul 12, 2019

Re-Establishing Flow Via Drug Coated Balloon for the Treatment of Urethral Stricture Disease - Registry Study

An interventional study of Optilume Drug Coated Balloon in Urethral Stricture, Urethral Stricture, Anterior and Lower Urinary Tract Symptoms, sponsored by Urotronic Inc.. Withdrawn. Open to male participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-07-12.

Sponsored by Urotronic Inc. · Not applicable, Interventional, and Treatment

Why this study was withdrawn
Company Decision
Phase
Not applicable
Study type
Interventional
Enrollment
0
Allocation
Not applicable
Ages
18 Years and older
Sex
Male
01

Study summary

The ROBUST IV study is designed to collect and better understand "real-world" outcomes for men undergoing urethral dilation using the Optilume Drug Coated Balloon (DCB) for treatment of urethral stricture.

02

Conditions studied

  • Urethral Stricture
  • Urethral Stricture, Anterior
  • Lower Urinary Tract Symptoms
  • Anterior Urethral Stricture
03

In context

Urethral Stricture

68 studies on the registry are indexed under Urethral Stricture; 23 are open to participants now.

Browse Urethral Stricture studies →

Lead sponsor

Urotronic Inc. is the lead sponsor of 10 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Male
Accepts healthy volunteers
No

Inclusion criteria

  1. Male subjects ≥ 18 years old
  2. Visual confirmation of stricture via cystoscopy or retrograde urethrogram
  3. Single lesion bulbar urethral stricture, less than or equal to 3.0 cm
  4. Significant symptoms of stricture such as frequency of urination, dysuria, urgency, hematuria, slow flow, feeling of incomplete emptying, recurrent urinary tract infections (UTIs).
  5. IPSS score of 13 or higher
  6. Lumen diameter \<12F by urethrogram
  7. Able to complete validated questionnaire independently
  8. Qmax \<15 ml/sec
  9. Guidewire must be able to cross the lesion

Exclusion criteria

Exclusion Criteria:

  1. Strictures greater than 3.0 cm long
  2. Subjects with greater than 1 stricture.
  3. Sensitivity to paclitaxel or on medication that may have negative interaction with paclitaxel
  4. Previous urethroplasty within the anterior urethra
  5. Stricture due to bacterial urethritis
  6. Stricture due to untreated gonorrhea
  7. Stricture due to Lichen Sclerosus, or balanitis xerotica obliterans (BXO)
  8. Stricture dilated or incised within the last 3 months (apart from subjects on self-catheterization)
  9. Presence of local adverse factors (e.g. abnormal prostate, urethral false passage or fistula) making catheterization difficult
  10. Presence of signs of obstructive voiding symptoms not directly attributable to the stricture at the discretion of the physician
  11. Diagnosis of untreated and unresolved severe BPH or bladder neck contracture (BNC), at the discretion of the physician
  12. Prior diagnosis of overactive bladder (OAB)
  13. Diagnosis of severe stress urinary incontinence (SUI), at the discretion of the physician
  14. Previous radical prostatectomy that resulted in either unresolved bladder neck contracture (BNC) and/or unresolved incontinence
  15. Previous pelvic radiation
  16. Diagnosis of kidney, bladder, urethral or ureteral stones in the last 6 weeks or active stone passage in the past 6 weeks
  17. Diagnosed with chronic renal failure, at the discretion of the physician
  18. A dependence on Botox (onabotulinumtoxinA) in the urinary system
  19. Presence of a penile implant, artificial urinary sphincter, or stent(s) in the urethra or prostate
  20. Known neurogenic bladder, sphincter abnormalities, or poor detrusor muscle function
  21. Previous hypospadias repair
  22. Diagnosis within the last 5 years of carcinoma of the bladder or prostate or suspicion of prostate cancer (e.g. abnormal DRE or high PSA) at the discretion of the physician
  23. Any cognitive or psychiatric condition that interferes with or precludes direct and accurate communication with the study investigator regarding the study or affect the ability to complete the study quality of life questionnaires
  24. Unwilling to use protected sex for ≥30 days post treatment
  25. Unwilling to abstain or use protected sex for 90 days post treatment if sexual partner is of child bearing potential.
  26. Inability to provide legally effective Informed Consent Form (ICF) and/or comply with all the required follow-up requirements
  27. Active infection in the urinary system
  28. History of diabetes not controlled with a hemoglobin A1-C >7.0%
  29. Diagnosed or suspected primary neurologic conditions such as multiple sclerosis or Parkinson's disease or other neurological diseases known to affect bladder function, sphincter function or poor detrusor muscle function.
  30. Visible hematuria with subject urine sample without known contributing factor
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
0 participants (actual)

Study arms

  • Other
    Optilume DCB

    Optilume Drug Coated Balloon (DCB) treatment for the treatment of urethral stricture as approved for use in Canada

    Device: Optilume Drug Coated Balloon

Interventions

  • DeviceOptilume Drug Coated Balloon

    The Optilume Drug Coated Balloon (DCB) is a guidewire compatible catheter with a tapered atraumatic tip. The distal end of the catheter has an inflatable balloon coated with a proprietary coating containing the drug paclitaxel that facilitates the drug's transfer to the urethral wall upon inflation.

06

What researchers measure

Primary outcomes

  1. Stricture Recurrence Rate

    Stricture Free Rate

    Time frame: 12 months

  2. Rate of Serious Adverse Events

    Major Device or Procedure Related Serious Adverse Events

    Time frame: 3 months

Secondary outcomes

  1. Change in Uroflow

    Change in Qmax (peak flow rate)

    Time frame: 3 and 12 months

  2. Change in the International Prostate Symptom Score Questionnaire (IPSS)

    IPSS Percent Responder (50% improvement in IPSS score or IPSS score of 11 or lower)

    Time frame: 3 and 12 months

  3. Change in the EQ-5D Quality of Life Questionnaire

    Change in the EQ-5D at 3 and 12 months post-procedure compared to baseline. Subscales of mobility, self-care, usual activities, pain/discomfort and anxiety/depression on a scale of 1 (no problem) to 5 (extreme problems)

    Time frame: 3 and 12 months

  4. Change in the International Index of Erectile Function Questionnaire (IIEF)

    Change in the IIEF at 3 and 12 months post-procedure compared to baseline on a scale of 5 (severe erectile dysfunction) to 25 (no erectile dysfunction)

    Time frame: 3 and 12 months

  5. Change in the Male Sexual Health Questionnaire (MSHQ-EjD)

    Change in the MSHQ-EjD at 3 and 12 months post-procedure compared to baseline. Subscales of ejaculatory function from 1 (more ejaculatory dysfunction) to 15 (less ejaculation dysfunction) and bother from 0 (no bother with ejaculation) to 5 (greater bother with ejaculation)

    Time frame: 3 and 12 months

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 12, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03851952
Lead sponsor
Urotronic Inc.
Responsible party
Sponsor
First posted
Feb 22, 2019
Start date
May 31, 2019 (estimated)
Primary completion
Oct 31, 2020 (estimated)
Completion
Dec 31, 2024 (estimated)
Last update
Jul 12, 2019

Study contacts

Ron Kodama, MD
principal investigator · Sunnybrook Health Sciences Centre

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in Jul 2019. You cannot join it, but the record below documents what was studied.

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