Postoperative Radiotherapy in Breast Cancer- Concurrent or Sequential With Chemotherapy
CONCERT
Phase III Randomized Controlled Trial of Sequential Chemotherapy and Radiotherapy Versus Concurrent Chemoradiotherapy in Adjuvant Treatment of Breast Cancer (CONCERT)
2 other identifiers
interventional
858
1 country
5
Brief Summary
This clinical research aims to determine if concurrent chemotherapy and radiation therapy is more effective than sequential chemotherapy and radiation therapy for patients with stage IIB-III breast cancer. It seeks to answer the following key questions:
- 1.When compared to sequential treatment, does concurrent chemoradiotherapy increase disease-free survival?
- 2.What effects does concurrent treatment have on post-operative look, quality of life, and side effects including arm swelling (lymphoedema)?
- 3.What are each treatment approach's financial costs?
- 4.Get the usual chemotherapy (taxanes and/or anthracyclines).
- 5.Receive radiation therapy for three to four weeks.
- 6.Have follow-up visits every 6months for 5years to check for cancer recurrence, side effects, and quality of life.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started May 2024
Longer than P75 for phase_3
5 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 14, 2024
CompletedFirst Submitted
Initial submission to the registry
February 14, 2025
CompletedFirst Posted
Study publicly available on registry
April 13, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2031
ExpectedStudy Completion
Last participant's last visit for all outcomes
May 1, 2031
April 13, 2025
April 1, 2025
7 years
February 14, 2025
April 7, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Study the 3-year Disease Free Survival.
From enrollment to 3 years after treatment at six months intervals.
Secondary Outcomes (6)
Impact of concurrent regimen on patient's Quality of life using the EORTC QLQ 30 and BR 23 and EQ5D5L questionnaire.
From enrollment at pre-raditherapy, post-radiotherapy completion and on follow up at 12-monthly interval up to 3 years.
Subjective and objective assessment of cosmesis in breast-conserving surgery patients, utilizing the Harvard scale and the BCCT core photographic evaluation, respectively.
From enrollment at pre-raditherapy, post-radiotherapy completion and on follow up at 12-monthly interval up to 3 years.
The difference in direct and indirect cost of treatment in the two arms will be assessed using the FACT-COST.
From enrollment at start of adjuvant chemotherapy, pre-radiotherapy and at post radiotherapy treatment.
To assess the rate of lymphedema in the two arms of the trial using subjective and objective methods
From enrollment at pre-radiotherapy, post-radiotherapy completion and annually thereafter till 3 years
Overall survival (OS)outcome assessment in the two arms.
From enrollment to 5 years after treatment at 6 months intervals
- +1 more secondary outcomes
Study Arms (2)
Arm A: Standard Arm
ACTIVE COMPARATORParticipants randomized to arm A arm will receive sequential chemotherapy and radiotherapy
Arm B: Experimental arm
EXPERIMENTALParticipants randomized to arm B will receive concurrent chemotherapy and radiotherapy
Interventions
This intervention will consist of getting chemotherapy followed by radiotherapy, i.e, in a sequential manner
Eligibility Criteria
You may qualify if:
- Pathologically confirmed invasive breast cancer
- Stage IIB-III invasive breast cancer (AJCC 8th edition)
- Patients planned for adjuvant chemotherapy and adjuvant radiotherapy
- Patients fit to receive adjuvant chemotherapy and radiotherapy
- Age \> 18 years
You may not qualify if:
- Hypersensitivity to taxanes
- Patients receiving entire chemotherapy prior to surgery (neoadjuvant setting)
- Unable or unwilling for regular follow up
- Bilateral tumour needed RT to both sides
- Patients planned for RT to oligometastatic sites
- Unfavourable anatomical factors potentially leading to higher radiotherapy dose to heart and/or lungs (Exceeding the protocol specific mandatory dose constraints).
- Pregnant patient
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (5)
Homi Bhabha Cancer Hospital & Research Centre
Vishkhapatnam, Andhra Pradesh, 530053, India
Tata Memorial Centre
Mumbai, Maharasthra, 400012, India
Homi Bhabha Cancer Hospital and Research Centre
New Chandigarh, Punjab, 140901, India
Homi Bhabha Cancer Hospital, Sangrur
Sangrur, Punjab, 148001, India
Mahamana Pandit Madan Mohan Malviya Cancer Centre
Varanasi, Uttar Pradesh, 221005, India
Related Publications (1)
Wadasadawala T, Anup A, Carlton J, Sarin R, Gupta S, Parmar V, Pathak R, Ghosh J, Bajpai J, Gulia S, Krishnamurthy R. CONcurrent ChEmotherapy and RadioTherapy in adjuvant treatment of breast cancer (CONCERT): a phase 2 study. Ecancermedicalscience. 2023 Feb 23;17:1510. doi: 10.3332/ecancer.2023.1510. eCollection 2023.
PMID: 37113709BACKGROUND
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Professor and Radiation oncologist
Study Record Dates
First Submitted
February 14, 2025
First Posted
April 13, 2025
Study Start
May 14, 2024
Primary Completion (Estimated)
May 1, 2031
Study Completion (Estimated)
May 1, 2031
Last Updated
April 13, 2025
Record last verified: 2025-04
Data Sharing
- IPD Sharing
- Will not share