Recruiting
Southeast Netherlands Advanced Metastatic Breast Cancer Registry
The Southeast Netherlands Advanced Breast Cancer (SONABRE) Registry is a real life multi-center study. The registry aims to include all patients diagnosed with advanced breast cancer as of 2007 in 11 hospitals in the Netherlands. Data on patient, tumor and treatment characteristics are collected retrospectively from electronic medical files by trained registry clerks.
ClinicalTrials.gov IDNCT03577197
PhaseNot Applicable
Enrollment7000
SponsorAcademisch Ziekenhuis Maastricht
Age18 Years
SexALL
Conditions studied
Advanced Breast Cancer, Metastatic Breast Cancer
About this study
The Southeast Netherlands Advanced Breast Cancer (SONABRE) Registry is a real life multi-center study. The registry aims to include all patients diagnosed with advanced breast cancer as of 2007 in 11 hospitals in the Netherlands. Data on patient, tumor and treatment characteristics are collected retrospectively from electronic medical files by trained registry clerks.
Primary outcomes
- Treatment pattern (up to 13 years)
Eligibility information
Inclusion Criteria:
* Diagnosed with de novo or recurrent advanced breast cancer since 2007
* Diagnosed with or treated for advanced breast cancer in one of the participating hospitals
* Participating hospitals (period of inclusion): Maastricht UMC+ (2007-2025), Zuyderland hospitals Sittard/Heerlen (2007-2025), Amphia Hospital Breda (2013-2025), Catharina Hospital Eindhoven (2007-2025), Elkerliek Hospital Helmond (2010-2025), Maxima Medical Center Veldhoven/Eindhoven (2007-2025), Jeroen Bosch Hospital Den Bosch (2013-2025), Laurentius Hospital Roermond (2007-2025), St. Annaziekenhuis Geldrop (2007-2025), St. Elisabeth Hospital Tilburg (2007-2009), St. Jans Gasthuis Weert (2007-2025), VieCuri Medical Center Venlo/Venray (2013-2025), all in the Netherlands.
* Hospitals (and periods) were eligible for inclusion if (distant) registration from Maastricht UMC+ was possible.
* The inclusion period may be prolonged after 2025.
Exclusion Criteria: none
Study locations
- Multiple hospitals in the Netherlands (see Eligibility), Maastricht, Netherlands
Before you participate: Varda Clinical is an independent discovery tool, not the study sponsor or a medical provider. Eligibility can only be determined by the official study team. Discuss potential risks and benefits with a qualified healthcare professional.
Source: ClinicalTrials.gov. Record last refreshed by Varda Clinical: 2026-09-27.