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CTRI Number  CTRI/2026/02/104440 [Registered on: 20/02/2026] Trial Registered Prospectively
Last Modified On: 19/02/2026
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Surgical/Anesthesia 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   Kidney stone patients undergoing endoscopic surgery: comparison of ureteral stent versus medicine before surgery to improve stone clearance and recovery 
Scientific Title of Study   Comparison of short-term preoperative stenting and preoperative silodosin administration on outcomes of RIRS for renal stones 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
IPGME&R/IEC/2026/0022  Other 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  DR KUMAR RAJIV RANJAN 
Designation  ASSISTANT PROFESSOR 
Affiliation  IPGMER AND SSKM HOSPITAL 
Address  DEPARTMENT OF UROLOGY IPGMER AND SSKM HOSPITAL 244 AJC BOSE ROAD KOLKATA

Kolkata
WEST BENGAL
700038
India 
Phone  9432513295  
Fax    
Email  dr.ranjanrajiv@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  MRIDUL GERA 
Designation  POST DOCTORAL TRAINEE 
Affiliation  IPGMER AND SSKM HOSPITAL 
Address  DEPARTMENT OF UROLOGY IPGMER AND SSKM HOSPITAL 244 AJC BOSE ROAD KOLKATA

Kolkata
WEST BENGAL
700038
India 
Phone  9350254136  
Fax    
Email  dcgera180@gmail.com  
 
Details of Contact Person
Public Query
 
Name  MRIDUL GERA 
Designation  POST DOCTORAL TRAINEE 
Affiliation  IPGMER AND SSKM HOSPITAL 
Address  DEPARTMENT OF UROLOGY IPGMER AND SSKM HOSPITAL 244 AJC BOSE ROAD KOLKATA

Kolkata
WEST BENGAL
700038
India 
Phone  9350254136  
Fax    
Email  dcgera180@gmail.com  
 
Source of Monetary or Material Support  
NIL 
 
Primary Sponsor  
Name  IPGMER AND SSKM HOSPITAL 
Address  DEPARTMENT OF UROLOGY IPGMER AND SSKM HOSPITAL 244 AJC BOSE ROAD KOLKATA 
Type of Sponsor  Government 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 
MRIDUL GERA  IPGMER AND SSKM HOSPITAL  ROOM NO-1 , 5TH FLOOR DEPARTMENT OF UROLOGY IPGMER AND SSKM HOSPITAL 244 AJC BOSE ROAD
Kolkata
WEST BENGAL 
9350254136

dcgera180@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
IPGME&R Research Oversight Committee  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, (2) ICD-10 Condition: O||Medical and Surgical,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  SILODOSIN  SILODOSIN 8mg daily for 7 days prior to RIRS without stenting 
Intervention  Ureteral stenting  Preoperative ureteral stenting 14 days prior to RIRS 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  65.00 Year(s)
Gender  Both 
Details  1. Patients diagnosed with renal calculi 5-20mm indicated for RIRS
2. No history of previous ureteral stenting or ureteric surgery 
 
ExclusionCriteria 
Details  1. Patients with ureteral stones
2. Active urinary tract infection
3. Single or multiple renal stones in a single functioning kidney
4. Pregnancy
5. Coagulopathy or on anti-coagulant therapy 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
Stone free rate at 2-4 weeks post operatively  outcomes will be assessed at baseline, 4 weeks and 8 weeks 
 
Secondary Outcome  
Outcome  TimePoints 
Operative time  Outcome will be assessed at baseline, 4 weeks & 8 weeks 
Need for ureteral dilatation  Outcome will be assessed at baseline, 4 weeks & 8 weeks 
Intraoperative ureteral injury  Outcome will be assessed at baseline, 4 weeks & 8 weeks 
Postoperative complications  Outcome will be assessed at baseline, 4 weeks & 8 weeks 
Hospital stay duration  Outcome will be assessed at baseline, 4 weeks & 8 weeks 
 
Target Sample Size   Total Sample Size="60"
Sample Size from India="60" 
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   N/A 
Date of First Enrollment (India)   05/03/2026 
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="1"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
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 - NO
Brief Summary   This prospective randomized controlled trial aims to compare the effectiveness of short term preoperative ureteral stenting with preoperative silodosin administration in improving outcomes of RIRS for renal stones. Sixty adult patients with renal calculi planned for RIRS will be randomized into two groups . Primary outcome include stone- free rate at 2-4 weeks.  Secondary outcomes include operative time, need for ureteral dilatation, intraoperative ureteral injury, postoperative complications and hospital stay. The study aims to determine whether pharmacological ureteral relaxation with silodosin can provide outcomes comparable to mechanical dilation achieved by prestenting, thereby potentially reducing the need for invasive preoperative stenting. 
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