FULL DETAILS (Read-only)  -> Click Here to Create PDF for Current Dataset of Trial
CTRI Number  CTRI/2025/07/091748 [Registered on: 25/07/2025] Trial Registered Prospectively
Last Modified On: 17/07/2025
Post Graduate Thesis  Yes 
Type of Trial  PMS 
Type of Study   Medical Device 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   Trial to evaluate the use of flexible suction access sheath (tube) to improve the stone clearance in kidney surgery using minimal access(endoscopic) methods 
Scientific Title of Study   Prospective Randomized Controlled Trial Comparing Traditional Access Sheath and Novel Tip-Flexible Suctioning Ureteral Access Sheath Combined with Flexible Ureteroscope in the Treatment of Renal Calculi 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Sanchit Mittal 
Designation  Senior Resident 
Affiliation  Amrita Institute of Medical sciences 
Address  Department of Urology, AIMS Kochi, Kerala

Ernakulam
KERALA
682041
India 
Phone  9897226790  
Fax    
Email  sanchit.mitttal@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Georgie Mathew 
Designation  consultant 
Affiliation  Amrita Institute of Medical sciences 
Address  Room number 5,Department of Urology G Block,8 floor, AIMS Kochi Kerala, India pincode 682041

Ernakulam
KERALA
682041
India 
Phone  9897226790  
Fax    
Email  georgiemathewuro@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Sanchit Mittal 
Designation  Senior Resident 
Affiliation  Amrita Institute of Medical sciences 
Address  Department of Urology, AIMS Kochi, Kerala


KERALA
682041
India 
Phone  9897226790  
Fax    
Email  sanchit.mitttal@gmail.com  
 
Source of Monetary or Material Support  
Amrita Institute of Medical sciences Kochi , Kerala, India, pincode 682041 contact number 0484-4001320 
 
Primary Sponsor  
Name  Amrita Institute of Medical sciences Kochi 
Address  Department of Urology, AIMS Kochi, Kerala-Primary centre India, Pincode 682041 contact number 0484-4001320  
Type of Sponsor  Private medical college 
 
Details of Secondary Sponsor  
Name  Address 
nil  nil 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr sanchit mittal  Amrita institute of Medical sciences Kochi   Reserch Room ,Department of Urology , 8 floor G Block Kochi Kerala , India, Pincode 682041. contact number 9897226790
Ernakulam
KERALA 
9897226790

sanchit.mitttal@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Ethics committee of Amrita school of Medicine   Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: N200||Calculus of kidney,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Traditional access sheath used for performing RIRS  routine access sheath used for performing RIRS will be used in control patients during the complete duration of surgery. total of 60 patients will be taken for control to statistical significance  
Intervention  use of Novel Tip flexible suctioning access sheath   instead of traditional access sheath sheath that is used world over for performing RIRS we will be using the flexible suctioning access sheath for performing RIRS for the duration of complete procedure in target group of patients 60 patients in each group will be taken to make the study statistically significant  
 
Inclusion Criteria  
Age From  2.00 Year(s)
Age To  99.00 Year(s)
Gender  Both 
Details  Patients with clinical diagnosis of renal calculi
Patients fit to undergo RIRS surgery
 
 
ExclusionCriteria 
Details  Patient who are not cleared for anesthesia
Individuals who are unable to give valid informed consent would be excluded from the study
In patient in whom access sheath could not be placed will be excluded from study 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   On-site computer system 
Blinding/Masking   Participant and Outcome Assessor Blinded 
Primary Outcome  
Outcome  TimePoints 
Stone-Free Rate
Stone Clearance Rate 
POD1
one and three months  
 
Secondary Outcome  
Outcome  TimePoints 
duration of surgery
incidence of infection
need for secondary procedures
rate of intraoperative and post operative complications  
intraoperative period
30 days post-surgery 
 
Target Sample Size   Total Sample Size="120"
Sample Size from India="120" 
Final Enrollment numbers achieved (Total)= "Applicable only for Completed/Terminated trials"
Final Enrollment numbers achieved (India)="Applicable only for Completed/Terminated trials" 
Phase of Trial   Post Marketing Surveillance 
Date of First Enrollment (India)   01/08/2025 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="2"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Yet Recruiting 
Recruitment Status of Trial (India)  Not Yet Recruiting 
Publication Details   N/A 
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - YES
  1. What data in particular will be shared?
    Response - Individual participant data that underlie the results reported in this article, after de-identification (text, tables, figures, and appendices).

  2. What additional supporting information will be shared?
    Response -  Study Protocol
    Response -  Statistical Analysis Plan

  3. Who will be able to view these files?
    Response - Researchers who provide a methodologically sound proposal.

  4. For what types of analyses will this data be available?
    Response - To achieve aims in the approved proposal.

  5. By what mechanism will data be made available?
    Response - Proposals should be directed to [sanchit.mitttal@gmail.com].

  6. For how long will this data be available start date provided 01-01-2026 and end date provided 01-01-2027?
    Response - Beginning 3 months and ending 5 years following article publication.

  7. Any URL or additional information regarding plan/policy for sharing IPD? 
    Additional Information - nil
Brief Summary  

This randomized controlled study aims to evaluate the efficacy and safety of the flexible and navigable suction ureteral access sheath (NTFS-UAS) compared to the traditional access sheath (T-UAS) in patients undergoing retrograde intrarenal surgery (RIRS). Patients presenting to the Urology OPD and scheduled for RIRS will be randomized into two groups using software. One group will use the traditional access sheath, while the other will use the NTFS-UAS.

Study Parameters

Stone Clearance Rate

Duration of Surgery

Stone-Free Rate: Assessed at Day 1, 1 month, and 3 months postoperatively.

Need for Ancillary Procedures

Complication Rates: Including infection rates.

Imaging and Measurement

Radiopaque Calculi: Patients with stones having a Hounsfield Unit (HU) of more than 1000 will have their residual stone bulk and clearance rates compared using X-ray imaging.

Radiolucent Calculi: Patients with stones having a HU of less than 1000 will undergo CT scans to compare stone bulk in the preoperative and postoperative periods.

This study will provide comprehensive data to determine which access sheath is superior in terms of surgical duration, stone clearance, ancillary procedure requirements, and infection rates.

 
Close