NCT06452485

Brief Summary

In the Netherlands, breast cancer patients with locoregional recurrence (LRR) and intermediate- and high-risk factors are treated with surgery with or without 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 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
15mo left

Started Feb 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 Progress68%
Feb 2024Oct 2027

Study Start

First participant enrolled

February 1, 2024

Completed
3 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

February 1, 2027

Expected
8 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2027

Last Updated

July 16, 2026

Status Verified

July 1, 2026

Enrollment Period

3 years

First QC Date

May 3, 2024

Last Update Submit

July 14, 2026

Conditions

Keywords

locoregional recurrence, breast cancer, treatment, re-irradiation, hyperthermia, patient-reported outcomes, quality of life, toxicity

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 (3)

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.

surgery only

Patients who do not receive postoperative re-irradiation after salvage mastectomy.

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

Eligible patients with local and/or regional recurrence (LRR), i.e true recurrence or second primary tumor: 1. After previous breast-conserving therapy and LRR with high-risk characteristics\* treated with salvage mastectomy after previous mastectomy or salvage mastectomy and postoperative re-irradiation +/- hyperthermia treatment. In both groups (neo)-adjuvant treatment 2. After previous mastectomy with a chest wall recurrence treated with local excision with or without NAST and postoperative re irradiation (+/-hyperthermia). If these patients have a complete clinical/radiological response after NAST and no surgery (i.e. local excision) is performed, treatment with re-irradiation (with/without hyperthermia) is indicated. Treatment with regional re-irradiation in case of a regional recurrence after (targeted) axillary dissection is allowed.

You may qualify if:

  • ≥ 18 years old
  • WHO performance scale ≤ 2
  • Diagnosed with local +/- regional recurrence (LRR) (i.e. true recurrence or second primary) with high-risk tumor characteristics\* and previously treated with postoperative local +/- regional irradiation for primary breast cancer/previous recurrence with an indication for salvage mastectomy with/without postoperative re-irradiation (+/-hyperthermia)\*\* if re-irradiation: including overlap of re-irradiated volume with previous irradiated volume
  • Diagnosed with a chest wall recurrence and treated with local excision with/without NAST and postoperative re irradiation with/without hyperthermia. In patients with a clinical/radiological complete response after neoadjuvant systemic treatment, NO surgery and re irradiation (+/- hyperthermia) (since surgery is not possible in this group)
  • (Neo-)adjuvant systemic (NAST) treatment is allowed
  • Use of PET(FES/FDG)-CT for 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
  • Proficient in Dutch at a level allowing to understand the questionnaires and patient information sheet
  • \* Definition of high-risk tumor characteristics are:
  • (Focal) irradical resection
  • All clinical and pathological stages except for low-risk LRR: - rcT1-2N0 - r(y)pT1-2N0 \*\* according to local clinical practice and/or shared decision making process

You may not qualify if:

  • Diagnosed with primary breast sarcoma

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

February 1, 2024

Primary Completion (Estimated)

February 1, 2027

Study Completion (Estimated)

October 1, 2027

Last Updated

July 16, 2026

Record last verified: 2026-07

Locations