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CompletedNCT06469125BICEPUpdated Nov 18, 2025

Anatomic Endoscopic Prostate Enucleation and BICEP Classification

An observational study in Bladder Injury and Prostate Hyperplasia, sponsored by Necmettin Erbakan University. Completed at 2 sites in Turkey (Türkiye). Open to male participants aged 40 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-11-18.

Sponsored by Necmettin Erbakan University · Observational

Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
250
Ages
40 Years and older
Sex
Male
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Study summary

The Bladder Injury Classification System for Endoscopic Procedure (BICEP) is designed to provide a systematic framework for categorizing bladder injuries that occur during endoscopic procedures. By standardizing the classification of these injuries, BICEP promotes a more consistent approach to diagnosis, management, and prevention across different urologic interventions. This study aims to validate and implement the BICEP system during morcellation.

This study will:

Validate BICEP by using real-life clinical scenarios to ensure its applicability and effectiveness.

Assess the incidence and types of bladder injuries during morcellation, using the BICEP categorization to standardize injury reporting and enhance treatment protocols.

Read the detailed description

Insufficient knowledge exists about bladder injuries during morcellation, as the existing literature primarily consists of isolated case reports. The Bladder Injury Classification System for Endoscopic Procedures (BICEP) aims to standardize the reporting and management of bladder injuries during endoscopic surgeries.

This study proposes an external validation of the BICEP system through an international, multicenter, prospective observational study. The objectives of this study are fourfold:

Validate the newly developed BICEP classification system with real-life clinical scenarios to ensure its applicability and effectiveness.

Evaluate the incidence and types of bladder injuries during morcellation using the BICEP framework to standardize injury reporting and enhance treatment protocols.

Assess the robustness of BICEP across different departments. Facilitate the adoption of BICEP as a global standard for classifying bladder injuries in endoscopic surgery.

Through this study, the validity of BICEP will be confirmed and the bladder injuries occurring during morcellation after AEEP will be examined.

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Conditions studied

  • Bladder Injury
  • Prostate Hyperplasia

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Keywords

  • BICEP classification
  • Anatomic Endoscopic Enucleation of Prostate
  • Bladder Injury
  • HoLEP
  • BiLEP
  • ThuFLEP
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In context

Prostatic Hyperplasia

783 studies on the registry are indexed under Prostatic Hyperplasia; 174 are open to participants now.

This study's enrollment of 250 is above the median of 214 across 167 observational studies indexed under Prostatic Hyperplasia.

Browse Prostatic Hyperplasia studies →

Lead sponsor

Necmettin Erbakan University is the lead sponsor of 198 studies on the registry; 48 are open to participants now.

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

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Who can participate

Ages eligible
40 Years and older
Sexes eligible
Male
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

Participants will include adult patients undergoing AEEP surgery. The presence of bladder injuries during the operation will be assessed according to the BICEP classification, and any potential injuries will be recorded.

Inclusion criteria

  • Patients aged ≥40
  • ASA (American Society of Anesthesiologists) score ≤4
  • Patients undergoing Holmium Laser Enucleation of the Prostate (HoLEP) or Transurethral Resection of the Prostate (TURP) surgery.

Exclusion criteria

Exclusion Criteria:

  • Patients with neurological disorders that may affect bladder function, such as cerebrovascular stroke or Parkinson's disease.
  • Patients with active urinary tract infection.
  • Patients diagnosed with bladder cancer within the last 2 years.
  • Patients with prostate cancer.
  • Patients who have undergone previous prostate surgery.
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Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
250 participants (actual)
Patient registry
No

Interventions

  • ProcedureEndoscopic Prostate Interventions for Anatomic Enucleation

    The intervention in this study involves performing anatomic endoscopic enucleation of the prostate (AEEP) using different energy sources. Following the enucleation, the resected prostate tissue will be morcellated within the bladder using various morcellators to remove the enlarged prostate tissue minimally invasively. The process will also involve evaluating and categorizing any resulting bladder injuries using the BICEP classification system.

    Also known as: Morcellation

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What researchers measure

Primary outcomes

  1. Number of Participants with Successful Validation of the Bladder Injury Classification System for Endoscopic Procedure Classification System for Bladder Injuries Occurring During Morcellation in AEEP Operations

    Approximately 250 participants will be evaluated using a scoring system ranging from 0 to 4 to assess the severity of the injury. A score of 0 indicates no injury, while a score of 4 indicates extensive avulsion of part of the bladder. In this system, the severity of the injury increases as the score increases.

    Time frame: Up to 24 weeks

  2. The impact of different energy sources and morcellation devices on bladder injury

    The severity of the injury will be assessed using a scoring system ranging from 0 to 4. A score of 0 indicates no injury, while a score of 4 indicates the highest degree of avulsion of part of the bladder. In this system, the severity of the injury increases as the score increases.

    Time frame: Up to 24 weeks

Secondary outcomes

  1. Postoperative Qmax Increase Following Morcellation in AEEP Operations

    Assessed by maximum flow rate (Q-max) measured using uroflowmetry by ml/sec, better outcome above 15ml/sec

    Time frame: 1 month post surgery

  2. Postoperative Improvement in International Prostate Symptom Score (IPSS)

    The IPSS form will be filled out for calculation. Scores of 0-7 indicate mild symptoms, 8-19 indicate moderate symptoms, and 20-35 indicate severe symptoms.

    Time frame: 1 month post surgery

  3. Duration of catheterization

    The duration of catheterization post-operation will be calculated in days.

    Time frame: Up to 10 weeks

  4. Length of hospital stay

    The duration of hospital stay post-operation will be calculated in days.

    Time frame: Up to 6 weeks

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Study locations

2 sites
  • Necmettin Erbakan University
    Konya, Konya 42250, Turkey (Türkiye)
  • Istanbul Medipol University Hospital
    Istanbul, Turkey (Türkiye)
08

References and documents

Publications

  • Clavien PA, Barkun J, de Oliveira ML, Vauthey JN, Dindo D, Schulick RD, de Santibanes E, Pekolj J, Slankamenac K, Bassi C, Graf R, Vonlanthen R, Padbury R, Cameron JL, Makuuchi M. The Clavien-Dindo classification of surgical complications: five-year experience. Ann Surg. 2009 Aug;250(2):187-96. doi: 10.1097/SLA.0b013e3181b13ca2. PubMed 19638912 ↗
  • Breda A, Gallioli A, Diana P, Fontana M, Territo A, Gaya JM, Rodriguez-Faba O, Huguet J, Piana A, Verri P, Baboudjian M, Aumatell J, Algaba F, Palou J. The DEpth of Endoscopic Perforation scale to assess intraoperative perforations during transurethral resection of bladder tumor: subgroup analysis of a randomized controlled trial. World J Urol. 2023 Oct;41(10):2583-2589. doi: 10.1007/s00345-022-04052-w. Epub 2022 Jun 4. PubMed 35665840 ↗
  • Gilling PJ, Kennett K, Das AK, Thompson D, Fraundorfer MR. Holmium laser enucleation of the prostate (HoLEP) combined with transurethral tissue morcellation: an update on the early clinical experience. J Endourol. 1998 Oct;12(5):457-9. doi: 10.1089/end.1998.12.457. PubMed 9847070 ↗
  • Soyturk S, Mateos FL, Sonmez G, Ortner G, Torres D, Tozsin A, Barlas IS, Turan A, Rechner R, Ferretti S, Erkurt B, Karabulut I, Sonmez MG, Kactan MC, Akdere H, Balasar M, Gadzhiev N, Somani B, Tunc L, Otero JR, Herrmann T, Guven S. Bladder injury in anatomical endoscopic enucleation of the prostate and morcellation using the Bladder Injury Classification for Endoscopic Procedures: a European Association of Urology endourology prospective study. BJU Int. 2026 May;137(5):797-804. doi: 10.1111/bju.70170. Epub 2026 Feb 13. PubMed 41685659 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 18, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06469125
Lead sponsor
Necmettin Erbakan University
Collaborators
Danube University Krems, University General Hospital of Heraklion, Paracelsus Medical University, University of Turin, Italy, Menoufia University, Acibadem Ankara Hospital, Universitätsmedizin Mannheim, Martini-Klinik am UKE GmbH, Asklepios Kliniken Hamburg GmbH, Istanbul Medipol University Hospital, Saint Petersburg State University, Russia, HM Sanchinarro University Hospital, Alexandria University, Spital Thurgau AG, Medical University of Graz, King's College Hospital NHS Trust, Sheikh Khalifa Medical City
Responsible party
Selim Soyturk (Research Assistant, Necmettin Erbakan University) — Principal investigator
First posted
Jun 21, 2024
Start date
Oct 8, 2025
Primary completion
Nov 14, 2025
Completion
Nov 14, 2025
Last update
Nov 18, 2025

Study contacts

Selçuk Güven, Prof. Dr.
study director · Necmettin Erbakan University
Bülent Erkurt, Prof. Dr.
study chair · Istanbul Medipol University Hospital
Selim Soytürk, RA
principal investigator · Necmettin Erbakan University

Oversight

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

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