NCT02948842

Brief Summary

The purpose of this study is to assess the efficacy of clostridium histolyticum collagenase (XIAFLEX®) in treating urethral strictures.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
5

participants targeted

Target at below P25 for phase_2

Timeline
Completed

Started May 2020

Typical duration for phase_2

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

October 26, 2016

Completed
2 days until next milestone

First Posted

Study publicly available on registry

October 28, 2016

Completed
3.6 years until next milestone

Study Start

First participant enrolled

May 22, 2020

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 4, 2023

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

April 12, 2023

Completed
7 months until next milestone

Results Posted

Study results publicly available

November 3, 2023

Completed
Last Updated

November 3, 2023

Status Verified

October 1, 2023

Enrollment Period

2.8 years

First QC Date

October 26, 2016

Results QC Date

July 31, 2023

Last Update Submit

October 12, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Number of Subjects With Complication After Treatment

    Number of subjects with complication after treatment with clostridium histolyticum collagenase

    84 days

Secondary Outcomes (21)

  • Number of Patients Needing Further Intervention for Treatment of Urethral Stricture

    2 years

  • Number of Subjects With Recurrence of Urethral Stricture

    2 years

  • Change From Baseline and 6 Weeks: American Urology Association Questionnaire Scores

    6 weeks

  • Change From Baseline and 6 Months: American Urology Association Questionnaire Scores

    6 months

  • Change From Baseline and 9 Months: American Urology Association Questionnaire Scores

    9 months

  • +16 more secondary outcomes

Study Arms (1)

Treatment Group

EXPERIMENTAL

Patients will undergo instillation of local anesthesia (20 mL of 2% urethral lidocaine jelly), the patient will undergo cystoscopy, transurethral injection (via a 70 cm 4.8 Fr flexible cystoscopic needle with a 23 gauge needle tip manufactured by Laborie®, Ontario, Canada) of 0.08ml of XIAFLEX® (0.58 mg of XIAFLEX® mixed with 0.39 mL of sterile diluent) in a single location within the stricture, chased by an additional 0.25 mL of reconstituted XIAFLEX® to allow for clearance of the original 0.08 mL of reconstituted XIAFLEX® from the transurethral syringe into the urethral stricture.

Drug: Clostridium Histolyticum CollagenaseOther: Saline

Interventions

0.08ml of XIAFLEX® (0.58 mg of XIAFLEX® mixed with 0.39 mL of sterile diluent) in a single location within the stricture, chased by an additional 0.25 mL of reconstituted XIAFLEX® to allow for clearance of the original 0.08 mL of reconstituted XIAFLEX® from the transurethral syringe into the urethral stricture. This is based on 0.25 mL residual fluid that remains within the lumen of the injeTAK syringe. Thus, by adding the additional 0.25 mL of XIAFLEX® as a chase, we are expecting the original total of 0.08 mL of XIAFLEX® to be injected into the area of scarring.

Also known as: XIAFLEX®
Treatment Group
SalineOTHER

0.08ml of injectable normal saline

Also known as: Injectable normal saline
Treatment Group

Eligibility Criteria

Age18 Years+
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Males
  • Age ≥ 18 years
  • Failed prior proven conservative measures, including DVIU or balloon dilation of the stricture will be included in this study
  • Able and willing to undergo regular intervention as well as evaluation as described below will be included in the study
  • With a single stricture \<2cm in size that can be identified on retrograde urethrogram or voiding cystourethrogram will be included in the study.
  • Must agree not to participate in a clinical study involving another investigational drug or device throughout the duration of this study
  • Must be competent to understand the information given in IRB approved ICF and must sign the form prior to the initiation of any study procedure

You may not qualify if:

  • Has not yet undergone proven non-invasive measures, including DVIU or balloon dilation.
  • Multiple strictures or a single stricture larger than 2cm in size, measured with retrograde urethrogram, voiding cystourethrogram, or urethral ultrasonography.
  • Corporal spongiosum tissues \< 5 mm in depth at proposed injection site
  • Grade 5 spongiofibrosis
  • Age \<18
  • Females
  • Prior urethroplasty
  • Urethral fistula
  • History of penile cancer, prostate cancer, or urinary tract malignancy (bladder, urethral, ureteral, or kidney).
  • History of radiation (external or brachytherapy) to the pelvic organs, penis or groin.
  • History of autoimmune or inflammatory bowel disease
  • Contraindication to suprapubic tube placement
  • Pre-procedure PVR \>250mL
  • Allergy or sensitivity to CHC
  • Bleeding disorder or anticoagulant use other than aspirin up to 150mg/day
  • +4 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of South Florida - South Tampa Campus

Tampa, Florida, 33606, United States

Location

Related Publications (9)

  • Santucci RA, Joyce GF, Wise M. Male urethral stricture disease. J Urol. 2007 May;177(5):1667-74. doi: 10.1016/j.juro.2007.01.041.

  • Chenoweth CE, Saint S. Urinary tract infections. Infect Dis Clin North Am. 2011 Mar;25(1):103-15. doi: 10.1016/j.idc.2010.11.005. Epub 2010 Dec 18.

  • Heyns CF, Steenkamp JW, De Kock ML, Whitaker P. Treatment of male urethral strictures: is repeated dilation or internal urethrotomy useful? J Urol. 1998 Aug;160(2):356-8. doi: 10.1016/s0022-5347(01)62894-5.

  • Hussain M, Greenwell TJ, Shah J, Mundy A. Long-term results of a self-expanding wallstent in the treatment of urethral stricture. BJU Int. 2004 Nov;94(7):1037-9. doi: 10.1111/j.1464-410X.2004.05100.x.

  • Zhang K, Qi E, Zhang Y, Sa Y, Fu Q. Efficacy and safety of local steroids for urethra strictures: a systematic review and meta-analysis. J Endourol. 2014 Aug;28(8):962-8. doi: 10.1089/end.2014.0090. Epub 2014 Jun 3.

  • Peak TC, Mitchell GC, Yafi FA, Hellstrom WJ. Role of collagenase clostridium histolyticum in Peyronie's disease. Biologics. 2015 Sep 29;9:107-16. doi: 10.2147/BTT.S65619. eCollection 2015.

  • Gelbard M, Goldstein I, Hellstrom WJ, McMahon CG, Smith T, Tursi J, Jones N, Kaufman GJ, Carson CC 3rd. Clinical efficacy, safety and tolerability of collagenase clostridium histolyticum for the treatment of peyronie disease in 2 large double-blind, randomized, placebo controlled phase 3 studies. J Urol. 2013 Jul;190(1):199-207. doi: 10.1016/j.juro.2013.01.087. Epub 2013 Jan 31.

  • Cavalcanti AG, Costa WS, Baskin LS, McAninch JA, Sampaio FJ. A morphometric analysis of bulbar urethral strictures. BJU Int. 2007 Aug;100(2):397-402. doi: 10.1111/j.1464-410X.2007.06904.x.

  • Sangkum P, Yafi FA, Kim H, Bouljihad M, Ranjan M, Datta A, Mandava SH, Sikka SC, Abdel-Mageed AB, Moparty K, Hellstrom WJ. Collagenase Clostridium histolyticum (Xiaflex) for the Treatment of Urethral Stricture Disease in a Rat Model of Urethral Fibrosis. Urology. 2015 Sep;86(3):647.e1-6. doi: 10.1016/j.urology.2015.06.013. Epub 2015 Jun 27.

MeSH Terms

Conditions

Urethral Stricture

Interventions

Microbial CollagenaseSodium Chloride

Condition Hierarchy (Ancestors)

Urethral ObstructionUrethral DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital Diseases

Intervention Hierarchy (Ancestors)

CollagenasesMetalloendopeptidasesEndopeptidasesPeptide HydrolasesHydrolasesEnzymesEnzymes and CoenzymesMetalloproteasesChloridesHydrochloric AcidChlorine CompoundsInorganic ChemicalsSodium Compounds

Limitations and Caveats

These are first-in-human cases with collagenase clostridium histolyticum (CCH) treatment for urethral stricture, although number of treated patients is low. Future directions will hopefully include increased sample size through multi-institutional participation and adjunctive procedures designed to augment the proposed beneficial effects of CCH therapy.

Results Point of Contact

Title
Lucas Wiegand, MD
Organization
University of South Florida

Study Officials

  • Lucas R Wiegand, MD

    University of South Florida

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 26, 2016

First Posted

October 28, 2016

Study Start

May 22, 2020

Primary Completion

March 4, 2023

Study Completion

April 12, 2023

Last Updated

November 3, 2023

Results First Posted

November 3, 2023

Record last verified: 2023-10

Data Sharing

IPD Sharing
Will not share

Locations