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Completed

NCT Number: NCT06055946

Symmcora® Long-term Bidirectional Barbed Suture for Anastomosis in Patients Undergoing Robot Assisted Radical Prostatectomy

The aim of this observational study is to show the superiority of the bidirectional barbed suture (Symmcora® Longterm) in terms of time to perform the vesicourethral anastomosis after robot assisted radical prostatectomy compared to the available literature data, without an increase in the complication rate.

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Key information

Age range

18 year and older

Sex eligibility

Male

Study type

Observational

Primary location

Hospital Universitario Rey Juan Carlos, Móstoles, Madrid, Spain

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Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Male patients undergoing an elective robotic assisted radical prostatectomy
  • Written informed consent
  • Age ≥ 18years

Exclusion criteria

  • Emergency surgery
  • History of chronic steroid use
  • Previous prostatic surgery
  • Previous radiotherapy or brachytherapy
  • Patients with hypersensitivity or allergy to the suture material.
  • Participation in another study
  • Non-compliant patient (dementia etc)

Treatment and study plan

robotic assisted radical prostatectomy

Device

Adult male patients undergoing elective robotic assisted radical prostatectomy.will be included in the study

Primary outcomes

  1. Time to perform the vesicourethral anastomosis

    Time frame: intraoperatively

    Time to perform the vesicourethral anastomosis using a stopwatch. Time starts when the needle passes the first time the tissue and ends after completion of the anastomosis. Completion of the anastomosis is defined by the last cut of the thread.

Secondary outcomes

  1. Anastomotic leak rate until 6 months postoperatively

    Time frame: up to 6 months after surgery

    Cumulative number of anastomotic leaks

  2. Amount of estimate blood loss (EBL)

    Time frame: intraoperatively

    Blood loss is estimated by the amount of intraoperatively needed transfusion

  3. Transfusion rate

    Time frame: at discharge from hospital (approximately 5-10 days after surgery)

    Amount of transfused blood, Calculated by multiplication of the number of bags needed and the volume in ml per bag

  4. Urinary retention

    Time frame: at 6 weeks postoperatively

    Urinary retention is an inability to completely empty the bladder

  5. Urinary fistula rate

    Time frame: until 6 months postoperatively

    A urogenital fistula is an abnormal tract that exists between the urinary tract and bladder, ureters, or urethra. A urogenital fistula can occur between any of the organs and structures of the pelvic region. A fistula allows urine to continually exit through and out the urogenital tract.

  6. Bladder neck contracture rate

    Time frame: until 6 months postoperatively

    Cumulative rate of patients with a complication related to the bladder neck contracture

  7. Urinary stone formation rate

    Time frame: until 6 months postoperatively

    Cumulative rate of patients with a complication related to urinary stone formation

  8. Rate of other complications

    Time frame: until 6 months postoperatively

    Cumulative rate of patients with any other complication (infection, embolization, peritonitis, ileus, etc.)

  9. Operation consola time

    Time frame: intraoperatively

    Time to perform the intervention from first cut to last cut of the last thread. The time is measured using a stopwatch.

  10. Time to perform the Rocco stitch

    Time frame: intraoperatively

    Time to perform the modified Rocco stitch: After prostate extirpation, the free edge of the Denonvillier fascia is approximated to the posterior rhabdosphincter/median raphe using a running suture. Then, the Denonvilliers' fascia is fixated to the posterior wall of the bladder, which reduces tension in the anastomosis and provides pelvic support to the bladder neck. The time is measured using a stopwatch.

  11. Length of postoperative stay

    Time frame: until discharge (approximately 5-10 days postoperatively)

    Number of days from surgery till patient is discharged from hospital

  12. Catheterization duration

    Time frame: until first follow-up (6 weeks postoperatively)

    Number of days from surgery till catheter was finally removed

  13. Early continence

    Time frame: 6 weeks postoperatively

    Days after catheter was finally removed to complete continence

  14. Development of continence by 24-h pad test

    Time frame: at 3 months and 6 months postoperatively.

    The 24-hour pad test is used as an objective diagnostic method for the assessment of post prostatectomy stress urinary incontinence. Pads are weighed before and after use and the amount of urine is measured.

  15. Development of Erectile Function compared to baseline

    Time frame: Preoperatively (Baseline), 6 weeks, 3 months and 6 months postoperatively.

    Erectile Function measured by International Index of Erectile Function (IIEF-5). The International Index of Erectile Function-5 (IIEF-5) is an five-item Index developed to diagnose the presence and severity of erectile dysfunction (ED). The five items are based on ability to identify the presence or absence of ED and on adherence to the National Institute of Health's definition of ED. These items focus on erectile function and intercourse satisfaction. The items are rated on a scale from 1-5 (e.g., 1=Very low to 5=Very high; 1=Almost never/never to 5=Almost always/always; 1=Extremely difficult to 5=Not difficult). The IIEF-5 score is the sum of questions 1 to 5 (Scores range from 5-25). ED was classified into five severity levels, ranging from none (22-25) through severe (5-7).

  16. Development of International prostate symptom score (IPSS) compared to baseline

    Time frame: Preoperatively (Baseline), 6 weeks, 3 months and 6 months postoperatively.

    The International prostate symptom score (IPSS) questionnaire has seven questions, which are used to evaluate storage and voiding symptoms. The patient is given five options for the first seven questions and each option indicates severity of that symptom. The total score ranges from 0 to 35 and Lower Urinary Tract Symptoms (LUTS) are classified as mild to severe depending on the total score. Patients having a total score ≤7 are classified as having mild symptoms, scores from 8 to 19 are classified as moderate symptoms, and symptom scores ≥20 are classified as severe symptoms.

  17. Comparison of Prostate Specific Antigen (PSA) at screening and 6 weeks after surgery.

    Time frame: at screening and 6 weeks after surgery.

    PSA response will be measured as the change of serum PSA in ng/mL between preoperative / screening examination and at follow-up 6 weeks after surgery

Other outcomes

  1. Assessment of the intraoperative handling of the Symmcora® Long bidirectional

    Time frame: after inclusion of the last patient

    Handling of the suture is assessed for every participating surgeon once after inclusion of the last patient. Handling is measured in 16 dimensions + overall impression with five evaluation levels (excellent, very good, good, satisfied, poor)

  2. Assessment of the intraoperative handling of the Symmcora® Mid Unidirectional

    Time frame: after inclusion of the last patient

    Handling of the suture is assessed for every participating surgeon once after inclusion of the last patient. Handling is measured in 13 dimensions + overall impression with five evaluation levels (excellent, very good, good, satisfied, poor)

Sponsors and collaborators

Lead sponsor

Aesculap AG

Industry

Collaborators

  • B.Braun Surgical SA

Registry information

Official study title

Prospective, Multicenter, Single-arm Study on the Performance of Symmcora® Long-term Bidirectional Barbed Suture for Vesicourethral Anastomosis in Patients Undergoing Robot Assisted Radical Prostatectomy.

Acronym: BARVANA LONG

Important dates

Study start
2023
Primary completion
2024
Study completion
2025
First posted
Sep 28, 2023
Registry last updated
Dec 22, 2025

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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