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CTRI Number  CTRI/2025/08/093569 [Registered on: 25/08/2025] Trial Registered Prospectively
Last Modified On: 17/01/2026
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Radiation Therapy 
Study Design  Single Arm Study 
Public Title of Study   Effectiveness of high dose targeted radiation therapy in Gall bladder cancer. 
Scientific Title of Study   EVALUATION OF SAFETY AND EFFICACY OF STEREOTACTIC BODY RADIOTHERAPY IN UNRESECTABLE GALL BLADDER CANCER: A PROSPECTIVE COHORT STUDY 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr. Manisha Kumari 
Designation  Junior Resident 
Affiliation  Department of Radiation Oncology. All India Institute of Medical Sciences, Bhubaneswar 
Address  Department of Radiation Oncology. All India Institute of Medical Sciences, Bhubaneswar

Khordha
ORISSA
751019
India 
Phone  9805709154  
Fax    
Email  manishathakur09er@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr. Deepak Kumar Das 
Designation  Assistant Professor 
Affiliation  All India Institute of Medical Sciences, Bhubaneswar 
Address  Department of Radiation Oncology. All India Institute of Medical Sciences, Bhubaneswar

Khordha
ORISSA
751019
India 
Phone  7978760783  
Fax    
Email  radonc_deepak@aiimsbhubaneswar.edu.in  
 
Details of Contact Person
Public Query
 
Name  Dr. Deepak Kumar Das 
Designation  Assistant Professor 
Affiliation  All India Institute of Medical Sciences, Bhubaneswar 
Address  Department of Radiation Oncology. All India Institute of Medical Sciences, Bhubaneswar

Khordha
ORISSA
751019
India 
Phone  7978760783  
Fax    
Email  radonc_deepak@aiimsbhubaneswar.edu.in  
 
Source of Monetary or Material Support  
All India Institute of Medical Sciences, Bhubaneswar Khordha, Odisha-751019, India 
 
Primary Sponsor  
Name  Dr Manisha Kumari 
Address  All India Institute of Medical Sciences, Bhubaneswar Khordha, Odisha-751019, India 
Type of Sponsor  Other [self] 
 
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 Manisha Kumari  All India Institute of Medical Sciences Bhubaneswar  Department of Radiation Oncology. All India Institute of Medical Sciences Bhubaneswar Khordha 751019 Odisha India
Khordha
ORISSA 
9805709154

manishathakur09er@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
INSTITUTIONAL ETHICS COMMITTEE For Faculty Research  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: C23||Malignant neoplasm of gallbladder,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Evaluation of efficacy and safety of stereotactic body radiotherapy-Prospective cohort study single arm in unresectable gall bladder cancer by volumetric arc therapy (VMAT) technique at a dose of 30Gray in 5 fractions  All the patients will receive 4 cycles of neo-adjuvant chemotherapy with Gemcitabine (1gm/m2) (IV) (Day 1 and Day 8) and Cisplatin (25 mg/m2) (Day 1 and Day 8), every 3 weeks. Response will be assessed after 4 weeks of last chemotherapy. If there is partial response or stable disease according to response evaluation criteria in solid tumours (RECIST )1.1 criteria, patients will be planned for stereotactic body radiotherapy (SBRT) by volumetric arc therapy (VMAT) technique at a dose of 30Gray in 5 fractions, followed by response assessment after 6 weeks. Response assessment will be done by triple phase CECT abdomen/CEMRI abdomen. Depending on the response, further treatment will be given as per departmental protocol.Depending on the response, further treatment will be given as per departmental protocol. Patients will be followed up every 3 monthly for the first 2 years with serum CEA and CA 19.9. Triple phase CECT abdomen will done every 6 months or if there is clinical or biochemical disease progression. 
Comparator Agent  NIL  NO COMPARISON GROUP 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  70.00 Year(s)
Gender  Both 
Details  Patients with ECOG PS 0-2 histologically proven unresectable non metastatic gallbladder cancer 
 
ExclusionCriteria 
Details  Patients with distant metastasis at presentation
Prior radiotherapy, Pregnant patients. Bilirubin more than 5mg/Dl.Liver enzymes three times or more above the upper limit of normal. one or more than one comorbidities 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
Response assessment following SBRT as per RECIST 1.1 criteria   6 weeks after completion of SBRT 
 
Secondary Outcome  
Outcome  TimePoints 
Acute Gastrointestinal toxicity as per RTOG criteria  During treatment & till 6 weeks following SBRT 
To assess resectability following SBRT  After 6 weeks of SBRT 
 
Target Sample Size   Total Sample Size="32"
Sample Size from India="32" 
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   Phase 2 
Date of First Enrollment (India)   14/09/2026 
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="9"
Days="0" 
Recruitment Status of Trial (Global)
Modification(s)  
Not Applicable 
Recruitment Status of Trial (India)  Open to Recruitment 
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 - All of the individual participant data collected during the trial, after de-identification.

  2. What additional supporting information will be shared?
    Response -  Study Protocol
    Response - Clinical Study Report

  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 (Others) -  By contacting the principal investigator via email.

  6. For how long will this data be available start date provided 05-01-2028 and end date provided 05-01-2033?
    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
Modification(s)  
Gallbladder cancer  is the most common biliary tract malignancy and the fifth leading gastrointestinal cancer worldwide.The overall response rate with chemotherapy and radiotherapy alone are 38.4  and 26 respectively Chemotherapy gemcitabine plus cisplatin is the standard treatment for unresectable advanced GBC, though outcomes remain poor. The role of chemoradiotherapy  following chemotherapy is still unclear  The major limitation of conventional external beam radiotherapy is the sensitivity of the liver and adjacent gastrointestinal structures. In contrast, SBRT offers a highly precise, safe, and effective option for treating hepatobiliary and pancreatic cancers Additionally, SBRT delivers higher biological effective doses of radiation in fewer sessions, typically completing treatment in 1 to 5 sessions, compared to the several weeks required for CRT This shorter treatment duration is especially advantageous for patients with poor general health or advanced cancers The fewer day of radiation with SBRT offers fewer days off of systemic therapy 
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