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Breast CancerNCT06648148

Molecular Biomarkers of Response to Radiation Therapy in Breast Cancer

An observational study of Breast Cancer and Radiotherapy Side Effect, run by Institute of Oncology Ljubljana at 1 site in Slovenia.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

The purpose of this study is to identify potential genetic and other molecular biomarkers of response to radiation therapy in breast cancer that may help to personalize breast cancer radiation treatment in the future. Read more about this study

Who is it for?
Ages 18 to 75 years, women only
Conditions the study is for
Breast Cancer, Radiotherapy Side Effect
How many people
200 participants
Where
1 siteSlovenia
Study dates
1 Nov 2019to 31 Dec 2029
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Study population: Breast cancer patients with non invasive ductal carcinoma in situ (DCIS) with an indication for postoperative radiation treatment.

Who may be able to join

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

Who cannot join

  • Any specific systemic oncological therapy

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Tanja Marinko, MD, PhD contact

0038615879505

tmarinko@onko-i.si

Slovenia1 site, 1 recruiting
  • Institute of Oncology Ljubljana

    Ljubljana, 1000

    Tanja Marinko, MD, PhD, 0038615879505, tmarinko@onko-i.si

    Tanja Marinko, MD, PhD

    Recruiting

Other trials in Slovenia

About this study

The purpose of this study is to identify potential genetic and other molecular biomarkers of response to radiation therapy in breast cancer that may help to personalize breast cancer radiation treatment in the future.

Read the detailed description

Monocentric prospective clinical study including DCIS patients treated at the Institute of Oncology Ljubljana. Patients treated with adjuvant radiotherapy and without systemic therapy are eligible for the study.

Adverse events of radiation treatment will be assessed after radiotherapy and during 5-year follow up and classified according to Common Terminology Criteria for Adverse Events v5.0.

Molecular biomarkers will be assessed before radiotherapy, after radiotherapy and during follow up. DNA will be isolated from whole blood samples obtained before radiation treatment. Circulating biomarkers will be isolated from plasma samples before treatment, after treatment and during follow-up. Written informed consent will be obtained from all included patients and the study design was approved by the National Medical Ethics Committee.

Medical subject headings
Breast Neoplasms, Radiation Injuries

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Adverse events of radiation therapy

    We will assess the proportion of patients exhibiting skin and cardiac adverse events after radiotherapy using Common Terminology Criteria for Adverse Events, NYHA class, measurement of cardiac biomarkers and cardiac imaging

    Measured: Within 1 month after completion of radiotherapy

  2. Adverse events of radiation therapy

    We will assess the proportion of patients exhibiting skin and cardiac adverse events after radiotherapy using Common Terminology Criteria for Adverse Events, NYHA class, measurement of cardiac biomarkers and cardiac imaging

    Measured: 6 months after radiotherapy

  3. Adverse events of radiation therapy

    We will assess the proportion of patients exhibiting skin and cardiac adverse events after radiotherapy using Common Terminology Criteria for Adverse Events, NYHA class, measurement of cardiac biomarkers and cardiac imaging

    Measured: 2 years after radiotherapy

  4. Adverse events of radiation therapy

    We will assess the proportion of patients exhibiting skin and cardiac adverse events after radiotherapy using Common Terminology Criteria for Adverse Events, NYHA class, measurement of cardiac biomarkers and cardiac imaging

    Measured: 5 years after radiotherapy

Secondary outcomes (6)
  1. Disease recurrence

    We will assess the proportion of patients with disease recurrence.

    Measured: 5 years after radiotherapy

  2. Disease recurrence

    We will assess the proportion of patients with disease recurrence.

    Measured: 10 years after radiotherapy

  3. Changes of circulating biomarkers

    We will assess the changes of circulating biomarkers (miRNA, extracellular vesicles, proteins) after radiotherapy compared to values before radiotherapy.

    Measured: Within 1 month after completion of radiotherapy

  4. Changes of circulating biomarkers

    We will assess the changes of circulating biomarkers (miRNA, extracellular vesicles, proteins) after radiotherapy compared to values before radiotherapy.

    Measured: 6 months after radiotherapy,

  5. Changes of circulating biomarkers

    We will assess the changes of circulating biomarkers (miRNA, extracellular vesicles, proteins) after radiotherapy compared to values before radiotherapy.

    Measured: 2 years after radiotherapy

  6. Changes of circulating biomarkers

    We will assess the changes of circulating biomarkers (miRNA, extracellular vesicles, proteins) after radiotherapy compared to values before radiotherapy.

    Measured: 5 years after radiotherapy

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Oct 2024
  2. Study start1 Nov 2019
  3. Primary completion31 Dec 2026 (estimated)
  4. Study completion31 Dec 2029 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
200 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06648148
Sponsor's protocol ID
DCIS-2019
Status last verified
Oct 2024
First submitted
30 Jan 2023
Last updated
18 Oct 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Breast Cancer and Radiotherapy Side Effect, run by Institute of Oncology Ljubljana at 1 site in Slovenia.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 18 Oct 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Slovenia. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Tanja Marinko, MD, PhD (0038615879505, tmarinko@onko-i.si), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Adverse events of radiation therapy (time frame: Within 1 month after completion of radiotherapy). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Oct 2024.

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