Postoperative Radiation of Patients With Breast Cancer in Extreme Hypofractionation.

July 6, 2022 updated by: Claudia Schweizer, University of Erlangen-Nürnberg Medical School

Postoperative External Beam Whole Breast or Chest Wall Irradiation of Patients With Breast Cancer in Extreme Hypofractionation.

Evaluation of treatment toxicity of extreme hypofractionation of the whole breast in five fractions of 5.2 Gy in five consecutive workdays.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Detailed Description

The focus of this phase 2-trial is set on feasibility as well as early and late toxicity rates. One possible disadvantage of extreme hypofractionation could be an increased rate of fibrosis within the irradiated region. Therefore, a closer look will be taken with this prospective trial.

In addition, we are planning an accompanying translational research program since hypofractionated schedules are suggested to be more immunogenic in breast cancer.

Secondary objectives therefore are: cosmetic outcome, local tumor control, quality of life, dynamic immune status, importance of tumor infiltrating immune cells, overall survival, disease-free survival, feasibility of breath-hold radiation technique.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
100

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Sampling Method

Non-Probability Sample

Study Population

Patients with breast cancer after complete resection and the indication for postoperative radiotherapy.

Description

Inclusion Criteria:

  • Histologically confirmed invasive breast cancer or ductal carcinoma in situ (DCIS)
  • pT-category pT0-3
  • complete resection (R0)
  • Absence of distant metastasis (M0)
  • Absence of contralateral breast cancer/ DCIS
  • Karnofsky Performance Score ≥ 60%
  • Age ≥ 18 years at time of study entry
  • Written informed consent

Exclusion Criteria:

  • All patients not fulfilling inclusion criteria
  • Morbus Paget or pathological skin infiltration
  • Earlier or synchronous breast cancer
  • Pregnant or breast-feeding women
  • Increased radiosensitivity or any genetic disposition for increased radiosensitivity, e.g. ataxia telangiectatica
  • Judgement by the investigator that the patient is unlikely to comply with study procedures and requirements

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Incidence and grade of Treatment related adverse events according to the Common Terminology Criteria for Adverse Events (CTCAE 5.0)
Time Frame: 08/2022 - 07/2035
Evaluation during treatment and at each follow-up visit up to 10 years
08/2022 - 07/2035

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Cosmetic results according to the Harvard-scale
Time Frame: 05/2022 - 04/2035
Clinical evaluation of the irradiated breast at each follow-up up to 10 years according to the Harvard-scale (patient's and physician's view)
05/2022 - 04/2035
In-breast recurrence rate
Time Frame: 05/2022 - 04/2035
Evaluation at each follow-up up to 10 years via regular examinations including mammography/ ultrasound
05/2022 - 04/2035
Quality of life during and after treatment using the patient-reported questionnaires EORTC QLQ-C30 and QLQ-BR23
Time Frame: 05/2022 - 04/2035
Evaluation of patient's quality of life from inclusion to each follow-up up to 10 years via standardized questionnaires: European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire QLQ-C30 and the breast-orientated QLQ-BR23
05/2022 - 04/2035
Immune status analysis: Immunophenotyping using peripheral blood at several time points
Time Frame: 05/2022 - 04/2027
Withdrawals of whole blood (plasma and serum) before the first irradiation until one year after the treatment. Immunophenotyping by a modular multicolor flow cytometry-based method. Furthermore, whole exome sequencing/RNASeq on already obtained tissue from the breast surgery.
05/2022 - 04/2027
Overall survival
Time Frame: 05/2022 - 04/2035
Evaluation at each follow-up up to 10 years
05/2022 - 04/2035
Evaluation of feasibility of breath-hold radiation technique throughout the treatment time
Time Frame: 05/2022 - 04/2025
Evaluation of patient's capability to follow breathing commandos during planning-CT scan and each application of radiotherapy
05/2022 - 04/2025

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Erlangen-Nürnberg Medical School

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 1, 2022

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 30, 2025

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 30, 2035

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 22, 2022

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 6, 2022

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 11, 2022

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 11, 2022

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 6, 2022

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2022

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • ExtremeHypofractionationBreast

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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