Ignite Creation Date:
2025-12-25 @ 3:38 AM
Ignite Modification Date:
2025-12-26 @ 2:22 AM
Study NCT ID:
NCT07058402
Status:
RECRUITING
Last Update Posted:
2025-07-10
First Post:
2025-05-28
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
RIRS With Flex Suction Sheath vs. PCNL for 2-3 cm Renal Stones
Sponsor:
Changhai Hospital
Organization:
Study Overview
Official Title:
A Multicenter, Randomized Controlled Trial Comparing the Retrograde Intrarenal Surgery With a Tip-Flexible Suction Access Sheath to the Standard Percutaneous Nephrolithotomy for the Treatment of 2-3 cm Unilateral Renal Stones
Status:
RECRUITING
Status Verified Date:
2025-04
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
This is a multicenter, randomized controlled trial comparing retrograde intrarenal surgery (RIRS) using a tip-flexible suction access sheath with standard percutaneous nephrolithotomy (PCNL) for the treatment of 2-3 cm unilateral renal stones. The aim is to evaluate the clinical efficacy and safety of the novel suction sheath-assisted RIRS compared to standard PCNL in terms of stone-free rate and postoperative complications. A total of 308 patients will be enrolled across four centers in China.
Detailed Description:
Kidney stones (renal calculi) are a common urological condition that can lead to pain, infection, and renal dysfunction. For renal stones measuring 2-3 cm, both retrograde intrarenal surgery (RIRS) and percutaneous nephrolithotomy (PCNL) are recognized treatment options. Traditional RIRS is less invasive but may be associated with lower stone-free rates for larger stones. A newly developed tip-flexible suction access sheath (TFS-UAS) allows improved access to renal calyces, reduces intrarenal pressure, and enables efficient stone fragment evacuation through continuous suction.
This study is a prospective, multicenter, randomized controlled trial designed to compare the effectiveness and safety of RIRS using the TFS-UAS versus standard PCNL in patients with unilateral renal stones measuring 2-3 cm. A total of 308 patients aged 18-80 years will be enrolled from four tertiary hospitals in China. Eligible participants will be randomized into two groups to receive either TFS-UAS-assisted RIRS or standard PCNL. The primary endpoint is the stone-free rate (SFR) at 3 months, assessed by CT scan. Secondary outcomes include postoperative infection rates, changes in hemoglobin and procalcitonin levels, hospital stay duration, and pain scores.
This study aims to provide high-quality evidence to guide surgical decision-making in the management of medium-sized kidney stones and to evaluate the potential advantages of the new suction-assisted sheath in minimally invasive endourology.
This study is a prospective, multicenter, randomized controlled trial designed to compare the effectiveness and safety of RIRS using the TFS-UAS versus standard PCNL in patients with unilateral renal stones measuring 2-3 cm. A total of 308 patients aged 18-80 years will be enrolled from four tertiary hospitals in China. Eligible participants will be randomized into two groups to receive either TFS-UAS-assisted RIRS or standard PCNL. The primary endpoint is the stone-free rate (SFR) at 3 months, assessed by CT scan. Secondary outcomes include postoperative infection rates, changes in hemoglobin and procalcitonin levels, hospital stay duration, and pain scores.
This study aims to provide high-quality evidence to guide surgical decision-making in the management of medium-sized kidney stones and to evaluate the potential advantages of the new suction-assisted sheath in minimally invasive endourology.
Study Oversight
Has Oversight DMC:
True
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: