NCT07232927

Brief Summary

This prospective randomized study aims to evaluate the effect of adjunctive hemostatic agents (FloSeal® and Surgicel®) on perioperative outcomes in patients undergoing partial nephrectomy for localized renal tumors. A total of 150 patients were randomized into three groups: standard parenchymal suturing (Group A), suturing with FloSeal® (Group B), and suturing with Surgicel® (Group C). The study primarily investigates whether hemostatic agents reduce postoperative hemorrhage, urinary leakage, and positive surgical margin rates. Secondary outcomes include renal function change, operative and ischemia times, estimated blood loss, and hospital stay. All surgeries were performed by a single experienced surgeon at Ankara University Urology Department between January 2023 and December 2024.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
150

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jan 2023

Typical duration for not_applicable

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

Study Start

First participant enrolled

January 2, 2023

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2024

Completed
26 days until next milestone

Study Completion

Last participant's last visit for all outcomes

December 27, 2024

Completed
11 months until next milestone

First Submitted

Initial submission to the registry

November 13, 2025

Completed
5 days until next milestone

First Posted

Study publicly available on registry

November 18, 2025

Completed
Last Updated

November 18, 2025

Status Verified

November 1, 2025

Enrollment Period

1.9 years

First QC Date

November 13, 2025

Last Update Submit

November 16, 2025

Conditions

Keywords

Partial nephrectomyRenal cell carcinomaHemostatic agentsFloSealSurgicelHemorrhageUrinary leakage

Outcome Measures

Primary Outcomes (3)

  • Incidence of clinically significant postoperative hemorrhage requiring blood transfusion

    Presence of postoperative bleeding requiring blood transfusion, radiologic, or surgical intervention, recorded according to standardized clinical criteria.

    From postoperative Day 0 through postoperative Day 30

  • Incidence of postoperative urinary leakage or fistula

    Detection of urinary leakage based on drain creatinine measurement or radiologic evidence of fistula following partial nephrectomy.

    From postoperative Day 0 through postoperative Day 30

  • Rate of positive surgical margins

    Pathologic assessment of surgical margins on resected tumor specimens to evaluate oncologic safety.

    At pathological assessment (Day of surgery)

Secondary Outcomes (4)

  • Mean operative time and warm ischemia time

    Intraoperative (Day of surgery)

  • Estimated blood loss during surgery

    Intraoperative (Day of surgery)

  • Change in postoperative renal function (serum creatinine and eGFR)

    Preoperative (1 day before surgery) and postoperative Day 30

  • Postoperative hospital stay

    From postoperative Day 0 until discharge, assessed for up to 30 days.

Study Arms (3)

Group A - Suturing Only

ACTIVE COMPARATOR

Standard parenchymal suturing technique without use of adjunctive hemostatic material.

Procedure: Standard Parenchymal Suturing

Group B - Suturing + FloSeal®

EXPERIMENTAL

Parenchymal suturing performed with adjunctive application of gelatin-thrombin matrix (FloSeal®).

Procedure: Suturing with FloSeal®

Group C - Suturing + Surgicel®

EXPERIMENTAL

Parenchymal suturing performed with adjunctive use of oxidized regenerated cellulose (Surgicel®).

Procedure: Suturing with Surgicel®

Interventions

Standard parenchymal suturing technique performed during partial nephrectomy without the use of adjunctive hemostatic materials. Serves as the control arm in the study.

Group A - Suturing Only

Partial nephrectomy performed with parenchymal suturing combined with gelatin-thrombin matrix (FloSeal®) as an adjunctive hemostatic agent.

Group B - Suturing + FloSeal®

Partial nephrectomy performed with parenchymal suturing combined with oxidized regenerated cellulose (Surgicel®) as an adjunctive hemostatic agent.

Group C - Suturing + Surgicel®

Eligibility Criteria

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

You may qualify if:

  • Patients aged 18 years or older.
  • Diagnosed with localized renal mass (clinical stage T1a-T1b) suitable for partial nephrectomy.
  • Adequate preoperative renal function to undergo surgery.
  • Signed informed consent obtained prior to study enrollment.
  • Undergoing open, laparoscopic, or robotic partial nephrectomy performed by the same experienced surgeon.

You may not qualify if:

  • Patients with solitary kidney or bilateral renal tumors.
  • History of previous renal surgery on the same kidney.
  • Evidence of metastatic disease or locally advanced (≥T2) renal tumors.
  • Coagulopathy, bleeding disorders, or ongoing anticoagulant therapy that cannot be discontinued.
  • Active urinary tract infection or systemic infection.
  • Known allergy or hypersensitivity to gelatin or oxidized cellulose components.
  • Patients who decline participation or withdraw consent.
  • Incomplete perioperative data or loss to follow-up.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ankara University Faculty of Medicine, Department of Urology

Ankara, Ankara, 06590, Turkey (Türkiye)

Location

Related Publications (22)

  • Campbell SC, Novick AC, Belldegrun A, Blute ML, Chow GK, Derweesh IH, Faraday MM, Kaouk JH, Leveillee RJ, Matin SF, Russo P, Uzzo RG; Practice Guidelines Committee of the American Urological Association. Guideline for management of the clinical T1 renal mass. J Urol. 2009 Oct;182(4):1271-9. doi: 10.1016/j.juro.2009.07.004. Epub 2009 Aug 14. No abstract available.

  • Di Maida F, Campi R, Lane BR, De Cobelli O, Sanguedolce F, Hatzichristodoulou G, Antonelli A, Grosso AA, Noyes S, Rodriguez-Faba O, Keeley FX, Langenhuijsen J, Musi G, Klatte T, Roscigno M, Akdogan B, Furlan M, Simeone C, Karakoyunlu N, Marszalek M, Capitanio U, Volpe A, Brookman-May S, Gschwend JE, Smaldone MC, Uzzo RG, Kutikov A, Minervini A, Sib International Consortium. Predictors of Positive Surgical Margins after Robot-Assisted Partial Nephrectomy for Localized Renal Tumors: Insights from a Large Multicenter International Prospective Observational Project (The Surface-Intermediate-Base Margin Score Consortium). J Clin Med. 2022 Mar 23;11(7):1765. doi: 10.3390/jcm11071765.

  • Ljungberg B, Albiges L, Abu-Ghanem Y, Bedke J, Capitanio U, Dabestani S, Fernandez-Pello S, Giles RH, Hofmann F, Hora M, Klatte T, Kuusk T, Lam TB, Marconi L, Powles T, Tahbaz R, Volpe A, Bex A. European Association of Urology Guidelines on Renal Cell Carcinoma: The 2022 Update. Eur Urol. 2022 Oct;82(4):399-410. doi: 10.1016/j.eururo.2022.03.006. Epub 2022 Mar 26.

  • Zargar H, Khalifeh A, Autorino R, Akca O, Brandao LF, Laydner H, Krishnan J, Samarasekera D, Haber GP, Stein RJ, Kaouk JH. Urine leak in minimally invasive partial nephrectomy: analysis of risk factors and role of intraoperative ureteral catheterization. Int Braz J Urol. 2014 Nov-Dec;40(6):763-71. doi: 10.1590/S1677-5538.IBJU.2014.06.07.

  • Erlich T, Abu-Ghanem Y, Ramon J, Mor Y, Rosenzweig B, Dotan Z. Postoperative Urinary Leakage Following Partial Nephrectomy for Renal Mass: Risk Factors and a Proposed Algorithm for the Diagnosis and Management. Scand J Surg. 2017 Jun;106(2):139-144. doi: 10.1177/1457496916659225. Epub 2016 Jul 18.

  • Kola O, Smigelski M, Nagpal S, Gogaj R, Taneja SS, Wysock JS, Huang WC. Urine leak and vascular complications following robotic partial nephrectomy: a contemporary single-center experience. J Robot Surg. 2024 Oct 29;18(1):387. doi: 10.1007/s11701-024-02096-1.

  • Maurice MJ, Ramirez D, Kara O, Malkoc E, Nelson RJ, Caputo PA, Kaouk JH. Omission of Hemostatic Agents During Robotic Partial Nephrectomy Does Not Increase Postoperative Bleeding Risk. J Endourol. 2016 Aug;30(8):877-83. doi: 10.1089/end.2016.0192.

  • Basu S, Khan IA, Das RK, Dey RK, Khan D, Agarwal V. RENAL nephrometry score: Predicting perioperative outcomes following open partial nephrectomy. Urol Ann. 2019 Apr-Jun;11(2):187-192. doi: 10.4103/UA.UA_93_18.

  • Abu-Ghanem Y, Dotan Z, Kaver I, Zilberman DE, Ramon J. The use of Haemostatic Agents does not impact the rate of hemorrhagic complications in patients undergoing partial nephrectomy for renal masses. Sci Rep. 2016 Aug 30;6:32376. doi: 10.1038/srep32376.

  • Aykan S, Temiz MZ, Ulus I, Yilmaz M, Gonultas S, Suzan S, Semercioz A, Muslumanoglu AY. The Use of Three Different Hemostatic Agents during Laparoscopic Partial Nephrectomy: A Comparison of Surgical and Early Renal Functional Outcomes. Eurasian J Med. 2019 Jun;51(2):160-164. doi: 10.5152/eurasianjmed.2018.18293.

  • Veccia A, Autorino R. Is there a relation between preserved renal function and oncological outcomes in patients undergoing partial nephrectomy for renal cell carcinoma? Ann Transl Med. 2018 Nov;6(Suppl 1):S88. doi: 10.21037/atm.2018.11.01. No abstract available.

  • Tonyali S, Koni A, Yazici S, Bilen CY. The Safety and Efficacy of Adjuvant Hemostatic Agents During Laparoscopic Nephron-Sparing Surgery: Comparison of Tachosil and Floseal Versus No Hemostatic Agents. Urol J. 2017 Jan 23;15(1):21-25. doi: 10.22037/uj.v0i0.4090.

  • Richter F, Schnorr D, Deger S, Trk I, Roigas J, Wille A, Loening SA. Improvement of hemostasis in open and laparoscopically performed partial nephrectomy using a gelatin matrix-thrombin tissue sealant (FloSeal). Urology. 2003 Jan;61(1):73-7. doi: 10.1016/s0090-4295(02)02143-x.

  • Gill IS, Ramani AP, Spaliviero M, Xu M, Finelli A, Kaouk JH, Desai MM. Improved hemostasis during laparoscopic partial nephrectomy using gelatin matrix thrombin sealant. Urology. 2005 Mar;65(3):463-6. doi: 10.1016/j.urology.2004.10.030.

  • Carrion DM, Y Gregorio SA, Rivas JG, Bazan AA, Sebastian JD, Martinez-Pineiro L. The role of hemostatic agents in preventing complications in laparoscopic partial nephrectomy. Cent European J Urol. 2017;70(4):362-367. doi: 10.5173/ceju.2017.1432. Epub 2017 Oct 17.

  • Shao IH, Lee CL, Lin YH, Wang HS, Chen MC, Chang YH, Sheng TW, Huang LK, Kan HC, Liu CY, Lin PH, Yu KJ, Chuang CK, Pang ST, Wu CT. Predicting hemorrhagic complications in robotic-assisted partial nephrectomy for renal tumors: simplifying risk assessment with tumor diameter and depth. J Robot Surg. 2025 Jul 10;19(1):368. doi: 10.1007/s11701-025-02537-5.

  • Blachman-Braun R, Patel M, Loebach L, Millan B, Saini J, Gurram S, Linehan WM, Ball MW. Urinary leak after partial nephrectomy: Insights from a cohort with hereditary, multifocal, and reoperative cases. Urol Oncol. 2025 Aug;43(8):470.e11-470.e18. doi: 10.1016/j.urolonc.2025.03.013. Epub 2025 Apr 2.

  • Ryan J, MacCraith E, Davis NF, McLornan L. A systematic management algorithm for perioperative complications after robotic assisted partial nephrectomy. Can Urol Assoc J. 2019 Nov;13(11):E371-E376. doi: 10.5489/cuaj.5750.

  • Peyton CC, Hajiran A, Morgan K, Azizi M, Tang D, Chipollini J, Gilbert SM, Poch M, Sexton WJ, Spiess PE. Urinary leak following partial nephrectomy: a contemporary review of 975 cases. Can J Urol. 2020 Feb;27(1):10118-10124.

  • Li KP, Chen SY, Wang CY, Yang L. Comparison between minimally invasive partial nephrectomy and open partial nephrectomy for complex renal tumors: a systematic review and meta-analysis. Int J Surg. 2023 Jun 1;109(6):1769-1782. doi: 10.1097/JS9.0000000000000397.

  • Capitanio U, Terrone C, Antonelli A, Minervini A, Volpe A, Furlan M, Matloob R, Regis F, Fiori C, Porpiglia F, Di Trapani E, Zacchero M, Serni S, Salonia A, Carini M, Simeone C, Montorsi F, Bertini R. Nephron-sparing techniques independently decrease the risk of cardiovascular events relative to radical nephrectomy in patients with a T1a-T1b renal mass and normal preoperative renal function. Eur Urol. 2015 Apr;67(4):683-9. doi: 10.1016/j.eururo.2014.09.027. Epub 2014 Oct 3.

  • Cao Y, Cui Y, Li R, Tang X, Lin C, Yang X, Liu J, Zhao Q, Ma J, de Oliveira Paludo A, Schmeusser BN, Wang S, Du P. Comparing the long-term prognosis and renal function changes of partial nephrectomy (PN) and radical nephrectomy (RN) in T1 stage renal cell carcinoma patients. Transl Androl Urol. 2025 Mar 30;14(3):740-750. doi: 10.21037/tau-2025-136. Epub 2025 Mar 26.

MeSH Terms

Conditions

Carcinoma, Renal CellHemorrhage

Interventions

SuturesFloSeal MatrixSurgicel

Condition Hierarchy (Ancestors)

AdenocarcinomaCarcinomaNeoplasms, Glandular and EpithelialNeoplasms by Histologic TypeNeoplasmsKidney NeoplasmsUrologic NeoplasmsUrogenital NeoplasmsNeoplasms by SiteFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesKidney DiseasesUrologic DiseasesMale Urogenital DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Surgical Fixation DevicesSurgical EquipmentEquipment and Supplies

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: A prospective, randomized, single-center, three-arm, parallel assignment clinical trial comparing standard parenchymal suturing (Group A), suturing with FloSeal® (Group B), and suturing with Surgicel® (Group C) during partial nephrectomy for localized renal tumors.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
assistant professor of urology

Study Record Dates

First Submitted

November 13, 2025

First Posted

November 18, 2025

Study Start

January 2, 2023

Primary Completion

December 1, 2024

Study Completion

December 27, 2024

Last Updated

November 18, 2025

Record last verified: 2025-11

Locations