NCT06452485

Brief Summary

In the Netherlands, breast cancer patients with locoregional recurrence (LRR) and high-risk factors are treated with postoperative re-irradiation with or without hyperthermia. Retrospective studies showed that 3-year locoregional control after postoperative re-irradiation with hyperthermia was 68-83%, and severe toxicity in up to 40% of LRR patients. Unfortunately, no prospective (randomized) data are available on clinical outcomes. Consequently, variation exists in hyperthermia-treatment and re-irradiation schedules. Prospective real-world data on oncological outcomes, toxicity and quality of life is highly needed for shared decision-making between patients and professionals. These data will be used in the design of a future randomized trial comparing postoperative re-irradiation and hyperthermia-treatment in high-risk LRR patients.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
500

participants targeted

Target at P75+ for all trials

Timeline
12mo left

Started Jan 2024

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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 Progress71%
Jan 2024May 2027

Study Start

First participant enrolled

January 1, 2024

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

May 3, 2024

Completed
1 month until next milestone

First Posted

Study publicly available on registry

June 11, 2024

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2027

Expected
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2027

Last Updated

October 6, 2025

Status Verified

September 1, 2025

Enrollment Period

3 years

First QC Date

May 3, 2024

Last Update Submit

September 30, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Patient-reported toxicity according to PRO-CTCAE in LRR patients

    Patient-reported toxicity according to PRO-CTCAE after a median follow-up of five years after diagnosis of (subsequent) LRR disease.

    Five years

Secondary Outcomes (7)

  • Quality of Life at 2 and 5 years after diagnosis of LRR disease

    at 2 and 5 years after diagnosis of LRR disease

  • Quality of Life at 2 and 5 years after diagnosis of LRR disease

    at 2 and 5 years after diagnosis of LRR disease

  • LRR-free survival in LRR patients

    at 2 and 5 years after diagnosis of LRR disease

  • distant metastasis-free survival in LRR patients

    at 2 and 5 years after diagnosis of LRR disease

  • breast-cancer event-free survival in LRR patients

    at 2 and 5 years after diagnosis of LRR disease

  • +2 more secondary outcomes

Study Arms (2)

Postoperative re-irradiation with hyperthermia

Postoperative re-irradiation with hyperthermia in patients with locoregional recurrent breast cancer

Other: No interventions, patient-reported outcomes (PROMs) and toxicity will be collected in both groups.

Postoperative re-irradiation without hyperthermia

Postoperative re-irradiation without hyperthermia in patients with locoregional recurrent breast cancer

Other: No interventions, patient-reported outcomes (PROMs) and toxicity will be collected in both groups.

Interventions

Patients will receive standard of care. Patients need to fill in questionnaires, these are additional interventions for the included subject. Questionnaires for patient-reported outcomes (PROMs) and toxicity will be filled in one week before treatment, one week before re-irradiation, one week and three months after re-irradiation, one, two and five years after surgery.

Postoperative re-irradiation with hyperthermiaPostoperative re-irradiation without hyperthermia

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients aged 18 years and older with an indication for postoperative re-irradiation with or without hyperthermia, eligible patients with a LRR with high-risk characteristics treated with mastectomy/local excision and postoperative re-irradiation, or mastectomy/local excision and postoperative re-irradiation with hyperthermia. Patients also treated with (neo-)adjuvant systemic treatment and/or with oligometastases (\<=5 metastases), are allowed to be part of the study population.

You may qualify if:

  • WHO performance scale ≤2
  • \>=18 years
  • Patients with a LRR breast cancer after postoperative irradiation of the primary breast cancer. LRR is defined as a local and/or regional recurrence, including patients with a second primary ipsilateral breast cancer.
  • Patients treated with salvage mastectomy with high-risk\* tumor characteristics or local excision with an indication for postoperative re-irradiation.
  • Previously treated with whole or partial breast irradiation.
  • (Neo)adjuvant systemic therapy (NST) is allowed.
  • Use of (FES/FDG-)PET-CT in staging of nodal and disseminated disease.
  • Oligometastases in lymph nodes in the mediastinum, neck, contralateral axillary/supraclavicular region (up to a maximal number of five) is allowed.
  • Adequate communication and understanding skills of the Dutch language.

You may not qualify if:

  • Diagnosed with primary breast sarcoma
  • Have a low-risk LRR after previous breast-conserving surgery/therapy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Amsterdam UMC

Amsterdam, Netherlands

RECRUITING

MeSH Terms

Conditions

Breast NeoplasmsHyperthermia

Interventions

Patient Reported Outcome Measures

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue DiseasesBody Temperature ChangesSigns and SymptomsPathological Conditions, Signs and SymptomsHeat Stress DisordersWounds and Injuries

Intervention Hierarchy (Ancestors)

Health Care SurveysSurveys and QuestionnairesData CollectionEpidemiologic MethodsInvestigative TechniquesHealth Services ResearchHealth PlanningHealth Care Economics and OrganizationsPatient Outcome AssessmentOutcome Assessment, Health CareOutcome and Process Assessment, Health CareQuality of Health CareHealth Services AdministrationHealth Care Quality, Access, and EvaluationHealth Care Evaluation MechanismsPublic HealthEnvironment and Public Health

Study Officials

  • Desiree Van Den Bongard, Dr

    Amsterdam UMC

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Dr

Study Record Dates

First Submitted

May 3, 2024

First Posted

June 11, 2024

Study Start

January 1, 2024

Primary Completion (Estimated)

January 1, 2027

Study Completion (Estimated)

May 1, 2027

Last Updated

October 6, 2025

Record last verified: 2025-09

Locations