NCT06611189

Brief Summary

Warm ischemia during kidney transplantation is one of the important factors that negatively affect kidney function in the recipient. The investigators aimed to examine the effects of two techniques (Ray-Tech sponge technique and Ice bag technique) applied to protect the kidney from warm ischemia during kidney transplantation on long-term kidney function.

Trial Health

55
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
172

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jan 2020

Longer than P75 for all trials

Geographic Reach
1 country

2 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2020

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2023

Completed
1.7 years until next milestone

First Submitted

Initial submission to the registry

September 10, 2024

Completed
14 days until next milestone

First Posted

Study publicly available on registry

September 24, 2024

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2025

Completed
Last Updated

September 24, 2024

Status Verified

September 1, 2024

Enrollment Period

3 years

First QC Date

September 10, 2024

Last Update Submit

September 20, 2024

Conditions

Keywords

Kidney transplantationWarm ischemia

Outcome Measures

Primary Outcomes (1)

  • Creatinine decrease

    Serum creatinine levels at 7th, 30th, 60th, and 180th days after operation were evaluated

    6 months

Study Arms (2)

Group A

Kidney transplantation performed using the ice bag technique.

Other: surgery

Group B

Kidney transplantation performed using Raytech sponge technique.

Other: Ray-Tech sponge technique

Interventions

surgeryOTHER

In order to preserve kidney from warm ischemia during graft implantation, on the back table, graft were prepared for implantation with standard techniques. The kidney was introduced into the bag which was filled with a small amount of ice and preservation fluid (Figure 1). After inplacement of the graft, a small hole was made near the hilum and the renal artery and vein were passed through the hole. A Kocher clamp was used to maintain the fluid and ice in place and as a handle. Also, a Hartman Mosquito Clamp was used to mark urether-side, and to maintain orientation.

Also known as: Simple plastic bag to preserve kidney from warm ischemia
Group A

On the back table, graft were prepared for implantation with standard techniques. A Raytech sponge is soaked in ice-cold preservative solution, and wrapped around the kidney and held with a clamp (Figure 2). Position and oriantation of the graft was done by direct vision of urether.

Group B

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

All individuals were selected from those who underwent Kidney transplantation at our institution between January 2020 and January 2023.

You may qualify if:

  • Underwent kidney transplantation surgery

You may not qualify if:

  • \- Deceased donor transplantation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Murat Ferhat Ferhatoglu

Istanbul, Kadıköy, 34734, Turkey (Türkiye)

Location

Istanbul Okan University

Istanbul, 34334, Turkey (Türkiye)

Location

Related Publications (3)

  • Ferede AA, Walsh AL, Davis NF, Smyth G, Mohan P, Power R, Forde J, O'Kelly P, Llittle D. Warm Ischemia Time at Vascular Anastomosis is an Independent Predictor for Delayed Graft Function in Kidney Transplant Recipients. Exp Clin Transplant. 2020 Feb;18(1):13-18. doi: 10.6002/ect.2018.0377. Epub 2019 Jul 2.

    PMID: 31266437BACKGROUND
  • Ide K, Sakai H, Nakano R, Imaoka Y, Tanimine N, Ide R, Tsukiyama N, Ono K, Mochizuki T, Arata R, Hakoda K, Imaoka K, Fukuhara S, Bekki T, Tahara H, Ohira M, Kobayashi E, Ohdan H. Effectiveness of Thermal Barrier Bag for Prolonged Vascular Anastomosis in Kidney Transplantation. Transplant Proc. 2023 May;55(4):752-755. doi: 10.1016/j.transproceed.2023.03.004. Epub 2023 Apr 6.

    PMID: 37028949BACKGROUND
  • Ide K, Nakano R, Imaoka Y, Sakai H, Ono K, Tanimine N, Tahara H, Ohira M, Ueda K, Hirata T, Kobayashi E, Ohdan H. Protection From Second Warm Ischemic Injury Using a Thermal Barrier Bag in Kidney Transplantation. Transplant Direct. 2023 Feb 17;9(3):e1454. doi: 10.1097/TXD.0000000000001454. eCollection 2023 Mar.

    PMID: 36845857BACKGROUND

MeSH Terms

Interventions

Surgical Procedures, Operative

Study Officials

  • MURAT F FERHATOGLU, MD

    Okan University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
6 Months
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

September 10, 2024

First Posted

September 24, 2024

Study Start

January 1, 2020

Primary Completion

January 1, 2023

Study Completion

January 1, 2025

Last Updated

September 24, 2024

Record last verified: 2024-09

Data Sharing

IPD Sharing
Will not share

Sharing data is not right in terms of patient privacy. When the informed consent form was signed by participants, only information about the study was given. No information was given about data sharing.

Locations