NCT06938113

Enrolling By Invitation

Ureteroscopy Combined With Negative Pressure Sheath Treatmen...

Peking University First Hospital Source

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Other study identifiers

Sponsor study identifier

NP-URL

Study Type

observational

Estimated enrollment

115

Locations

1 country

Sites

1

Timeline

Study Start

July 28, 2025

Actual (reported)

Primary Completion

December 31, 2025

Estimated (date passed)

This estimate has passed. The registry has not confirmed an actual date for this milestone.

Study Completion

January 31, 2026

Estimated (date passed)

This estimate has passed. The registry has not confirmed an actual date for this milestone.

Brief Summary

The removal rate, complication risk and operation time of ureteral soft scope combined with negative pressure suction sheath therapy for patients with high-load kidney stones (2-3cm) are still controversial. Therefore, the safety and effectiveness of flexible ureteroscope combined with negative pressure suction sheath in treating patients with high-load kidney stones is unknown. This study will help to solve the problems, provide a more scientific treatment strategy for clinical practice, and promote the application of negative pressure aspiration technology in the field of flexible ureteroscopy lithotripsy, providing new means and ideas for individualized treatment.

Registry Overview

Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.

Recruitment status: enrolling by invitation
Estimated enrollment: 115 participants
Study completion date: January 31, 2026
Estimated (date passed)
This estimate has passed. The registry has not confirmed an actual date for this milestone.
Listed locations: 1 countries · 1 sites

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.

First Submitted
March 26, 2025
Actual (reported)
First Posted
April 22, 2025
Actual (reported)
Study Start
July 28, 2025
Actual (reported)
Primary Completion
December 31, 2025
Estimated (date passed)
This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
January 31, 2026
Estimated (date passed)
This estimate has passed. The registry has not confirmed an actual date for this milestone.

Last Updated: September 2, 2025
Status Verified: May 2025
Last Update Submitted: August 25, 2025

Conditions

Kidney Calculi

Outcome Measures

Primary Outcomes (1)

Stone removal rate 1 month after surgery
From enrollment to 1 month after surgery

Secondary Outcomes (1)

Immediate stone free rate
From enrollment to 1 day after surgery

Eligibility Criteria

Age18 Years - 75 Years

Sexall

Healthy VolunteersNo

Age GroupsAdult (18-64), Older Adult (65+)

Sampling MethodNon-Probability Sample

Study Population

Age range from 18 to 75 years old; Patients undergoing flexible ureteroscopy lithotripsy in our hospital due to high-load kidney stones(2-3cm); All enrolled patients received informed consent and signed informed consent before operation.

You may qualify if:

Patients diagnosed with kidney stones with a diameter of 2-3cm by computed tomography;

Sponsors & Collaborators

Peking University First Hospital
Otherlead

Study Sites (1)

Peking University First Hospital

Beijing, Beijing Municipality, 100034, China

MeSH Terms

Conditions

Kidney Calculi

Condition Hierarchy (Ancestors)

NephrolithiasisKidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesUrolithiasisUrinary CalculiMale Urogenital DiseasesCalculiPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Study Design

Study Type: observational
Observational Model: COHORT
Time Perspective: PROSPECTIVE
Sponsor Type: OTHER
Responsible Party: SPONSOR

Study Record Dates

First Submitted

March 26, 2025

First Posted

April 22, 2025

Study Start

July 28, 2025

Actual (reported)

Primary Completion

December 31, 2025

Estimated (date passed)

This estimate has passed. The registry has not confirmed an actual date for this milestone.

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Research on Early Warning and Diagnosis & Treatment Pathway for Micro Kidney Stones

Completed

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FANS-Assisted Mini-PCNL for Complex Renal Stones

Not ApplicableActive Not Recruiting

NCT06729801

Intrarenal Pressure Monitoring Via Flexible and Navigable Suction Ureteral Access Sheath in Retrograde Intrarenal Surgery

Not ApplicableCompleted

NCT06667557

Comparing Super Pulse Fiber Thulium Laser and Holmium Laser for Ureteral Stone Fragmentation During Ureteroscopy

Recruiting

NCT06898216

Steerable vs Conventional FANS for <2cm Lower Pole Stone Treatment: SCULPT Trial

Not ApplicableRecruiting

NCT07780409

Flexible Ureteroscopy for Large Renal Stones in Children

Not ApplicableCompleted

Age \> 18 years old;

The anatomical structure of the kidney is normal, without deformity;

No serious heart and lung disease (ASA grade I-III)

Through preoperative communication, patients and their family members indicated that they were fully aware of the condition and the choice of treatment plan, and signed informed consent and informed choice notification;

You may not qualify if:

Simultaneous operation is required for ipsilateral ureteral calculi or contralateral upper or lower urinary calculi.
Severe coagulation dysfunction;
Patients who do not sign informed consent and cannot cooperate with the study;

Contact the study team to confirm eligibility.

Study Completion

January 31, 2026

Estimated (date passed)

This estimate has passed. The registry has not confirmed an actual date for this milestone.

Last Updated

September 2, 2025

Record last verified: 2025-05

Source record

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Source: ClinicalTrials.gov.

JSON downloads include source attribution and retrieval details alongside the unchanged original record or the separately normalized values.

Registry identifier: NCT06938113
Data provider: ClinicalTrials.gov
Source updated: 2025-09-02
Normalization version: ctgov-legacy-1

Open registry record

Source retrieved: 2026-10-25 22:24:32 UTC

Locations

CN(1)

Brief Summary

Registry Overview

Trial Relationships

Related Scientific Literature

Study Timeline

First Submitted

First Posted

Study Start

Primary Completion

Study Completion

Conditions

Outcome Measures

Primary Outcomes (1)

Secondary Outcomes (1)

Eligibility Criteria

You may qualify if:

Sponsors & Collaborators

Study Sites (1)

MeSH Terms

Conditions

Condition Hierarchy (Ancestors)

Study Design

Study Record Dates

You may not qualify if:

Source record

Locations