Using radiation therapy before chemotherapy for Luminal B breast cancer

Immune and Pathological Response in Breast Cancer After Preoperative Irradiation With Stereotactic Technique and Neoadjuvant ChemOtherapy

Not applicable Interventional IRCCS Azienda Ospedaliero-Universitaria di Bologna · NCT05673304

This study is testing if giving radiation therapy before chemotherapy can help women with Luminal B breast cancer have better results before surgery.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment30 (estimated)
Ages18 Years and up
SexFemale
SponsorIRCCS Azienda Ospedaliero-Universitaria di Bologna Academic / other
Drugs / interventionschemotherapy, radiation
Locations1 site (Bologna)
Trial IDNCT05673304 on ClinicalTrials.gov

What this trial studies

The IBISCO TRIAL is designed to evaluate the effectiveness of stereotactic radiation therapy (SBRT) as a preoperative boost in patients with Luminal B breast cancer undergoing neoadjuvant chemotherapy. This phase II trial aims to improve the rate of pathological complete response (pCR) by treating patients with SBRT prior to surgery. Thirty patients with clinical stage T1-2 Luminal B breast cancer will be enrolled over two years, and their surgical specimens will be analyzed for residual cancer burden. Additionally, the study will include a cohort of patients who meet the criteria but choose not to participate in the interventional group.

Who should consider this trial

Good fit: Ideal candidates are patients with clinical stage T1-2 Luminal B breast cancer who are indicated for neoadjuvant chemotherapy.

Not a fit: Patients who are pregnant, breastfeeding, or unable to attend follow-up appointments may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could enhance the effectiveness of neoadjuvant chemotherapy in achieving complete tumor response in Luminal B breast cancer patients.

How similar studies have performed: While this specific approach is novel, similar studies have explored the use of radiation therapy in conjunction with chemotherapy, showing promising results.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Luminal B-like BC, cT1-2
* Indication for neoadjuvant chemotherapy

Exclusion Criteria:

* Pregnancy
* Breast feeding
* Patient not available for follow up

Where this trial is running

Bologna

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Breast CancerRadiotherapyLuminal B Breast CancerNeoadjuvant radiation therapyNeoadjuvant chemotherapy
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.