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CTRI Number  CTRI/2025/07/090573 [Registered on: 09/07/2025] Trial Registered Prospectively
Last Modified On: 04/07/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Diagnostic 
Study Design  Single Arm Study 
Public Title of Study   Evaluating the Role of Additional Scans in Planning Surgery and Improving Outcomes in Women with Newly Diagnosed Breast Cancer 
Scientific Title of Study   A PRospective evaluation of impact of additional Imaging modalities in Surgical Management and outcome in Treatment naive breast Cancer patients. 
Trial Acronym  PRiISM 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Palak Thakkar 
Designation  PROFESSOR and OIC BREAST IMAGING and INTERVENTION SERVICES 
Affiliation  Tata Memorial Centre 
Address  Tata Memorial Hospital Main Building Ground Floor Radiology Department Room No 125 Dr Borges Road Parel
Tata Memorial Hospital Dr E Borges Road Parel Mumbai
Mumbai
MAHARASHTRA
400012
India 
Phone  02224177155  
Fax    
Email  dr.palakp@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Palak Thakkar 
Designation  PROFESSOR and OIC BREAST IMAGING and INTERVENTION SERVICES 
Affiliation  Tata Memorial Centre 
Address  Tata Memorial Hospital Main Building Ground Floor Radiology Department Room No 125 Dr Borges Road Parel
Tata Memorial Hospital Dr E Borges Road Parel Mumbai
Mumbai
MAHARASHTRA
400012
India 
Phone  02224177155  
Fax    
Email  dr.palakp@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Tejal vijay ogale 
Designation  JUNIOR RESIDENT 
Affiliation  Tata Memorial Centre 
Address  Tata Memorial Hospital Main Building Ground Floor Radiology Department Room No 125 Dr Borges Road Parel
Tata Memorial Hospital Dr E Borges Road Parel Mumbai
Mumbai
MAHARASHTRA
400012
India 
Phone  9022351956  
Fax    
Email  ogaletejal@gmail.com  
 
Source of Monetary or Material Support  
Tata Memorial Centre 
 
Primary Sponsor  
Name  Tata Memorial Centre 
Address  Tata Memorial Centre Dr. Borges Road, Parel Mumbai 
Type of Sponsor  Government funding agency 
 
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 Palak Thakkar  Tata Memorial Centre  Tata Memorial Centre Main Building ground floor Dept of Radiology Dr E Borges Road Parel
Mumbai
MAHARASHTRA 
022417155

dr.palakp@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee II  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: C50||Malignant neoplasm of breast,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  DA of MRI and DA of CEM  DA of MRI and DA of CEM 
Comparator Agent  HPR as gold standard   HPR as gold standard  
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  99.00 Year(s)
Gender  Both 
Details  Inclusion Criteria:
1. Patients consenting for participation in the study.

2. Non-metastatic at the time of presentation.

3. cT1-4 and cN0-3 at the time of presentation.

4. Mammogram, USG, CEM and MRI either performed in TMH, or done outside, with adequate quality DICOM images uploaded on PACS.

5. Patients undergoing CEM guided or MRI guided or relook USG guided biopsy if indicated at TMH/ACTREC; but may not undergo breast conservative surgery {These patients will be included in the study as rad- path correlation of these additional findings will be available}

6. Patients undergoing surgical and/ or medical management at TMH/ACTREC.

7. Biopsy specimen if eligible and complete surgical specimen provided to our institutional pathology department.

 
 
ExclusionCriteria 
Details  Pregnant patients.

Metastatic disease at the time of presentation.

More than 18 years of age.
 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
Percentage of proportion of change in surgical plan due to contrast based imaging findings.
Events considered as change in surgical plan due to additional findings will be following categories:
Category 1. Breast conservative surgery to mastectomy
Category 2. Mastectomy to breast conservative surgery
Category 3. For cases remaining as breast conservative surgery, extended resection leading to either expected change in cosmesis or requirement of oncoplasty due to contrast based imaging finding will be considered as change in management.
Category 4. Decision to start NACT.

 
at 6 month

 
 
Secondary Outcome  
Outcome  TimePoints 
1. Comparison of disease extent on non-contrast-based imaging (Mammogram, USG), based on CEM and/or MRI (the modality which will determined the surgical outcome) & clinically determined extent of disease with histopathological extent of disease.

2. Diagnostic accuracy of contrast imaging detected additional findings with histopathology correlation as a gold standard.
 
At Baseline 
 
Target Sample Size   Total Sample Size="600"
Sample Size from India="600" 
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)   15/07/2025 
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="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 - 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

  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 [dr.palak@gmail.com].

  6. For how long will this data be available start date provided 30-06-2025 and end date provided 31-12-2026?
    Response - Beginning 9 months and ending 36 months following article publication.

  7. Any URL or additional information regarding plan/policy for sharing IPD? 
    Additional Information - NIL
Brief Summary   This prospective interventional study is designed to evaluate the role of additional pre-operative imaging modalities Magnetic Resonance Imaging (MRI) and Contrast-Enhanced Mammography (CEM) in optimizing the surgical management of treatmen naive breast cancer patients. Eligible patients with newly diagnosed, biopsy confirmed invasive breast cancer who have not received any prior treatment will first undergo standard imaging workup including mammography and ultrasound. Subsequently, participants will receive MRI and/or CEM within two weeks prior to planned surgery. The surgical team will use all imaging data to determine the extent and type of surgery needed. The study aims to assess how MRI and CEM influence surgical decision making by measuring changes in surgical plans, additional lesion detection rates, and the concordance between imaging findings and final histopathology. Post-operative outcomes including margin status, reoperation rates, and complications will be documented. Follow-up assessments will be conducted up to three months after surgery to monitor patient recovery and surgical efficacy. The study seeks to provide evidence on whether incorporating MRI and CEM improves surgical outcomes and patient management in breast cancer care. 
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