Identifying genetic markers for radiation therapy response in breast cancer

Molecular Biomarkers of Response to Radiation Therapy in Breast Cancer

Institute of Oncology Ljubljana · NCT06648148

This study is trying to find genetic clues that can help predict how well breast cancer patients with ductal carcinoma in situ will respond to radiation therapy.

Quick facts

Study typeObservational
Enrollment200 (estimated)
Ages18 Years to 75 Years
SexFemale
SponsorInstitute of Oncology Ljubljana (other)
Drugs / interventionsradiation
Locations1 site (Ljubljana)
Trial IDNCT06648148 on ClinicalTrials.gov

What this trial studies

This observational study aims to identify genetic and molecular biomarkers that predict how breast cancer patients respond to radiation therapy. It involves a monocentric approach at the Institute of Oncology Ljubljana, focusing on patients with ductal carcinoma in situ (DCIS) who are receiving adjuvant radiotherapy without systemic therapy. The study will assess adverse events related to radiation treatment over a five-year follow-up period and will analyze blood samples for biomarkers before, after, and during follow-up. Informed consent will be obtained from all participants, and the study has received ethical approval.

Who should consider this trial

Good fit: Ideal candidates for this study are breast cancer patients diagnosed with ductal carcinoma in situ (DCIS) who are indicated for adjuvant radiation therapy.

Not a fit: Patients undergoing systemic oncological therapy or those not indicated for adjuvant radiation therapy will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to more personalized and effective radiation treatment plans for breast cancer patients.

How similar studies have performed: While there have been studies exploring biomarkers in cancer treatment, this specific approach focusing on radiation therapy response in DCIS is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Breast cancer patients with DCIS with an indication for adjuvant radiation therapy

Exclusion Criteria:

* Any specific systemic oncological therapy

Where this trial is running

Ljubljana

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.

View on ClinicalTrials.gov →

Conditions: Breast Cancer, Radiotherapy Side Effect

Last reviewed 2026-05-15 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.