DCISLORDNCT02492607
Management of Low-risk (Grade I and II) DCIS
A study testing Standard treatment, digital mammography and radiotherapy in people with DCIS, run by The Netherlands Cancer Institute at 60 sites in Netherlands.
Trial summary
A substantial number of DCIS lesions will never form a health hazard, particularly if it concerns slow-growing low-risk DCIS (grade I and II). This implies that many women might be unnecessarily going through intensive treatment resulting in a decrease in quality of life and an increase in health care costs, without… Read more about this study
- Who is it for?
- Ages 45 years and older, women only
- Conditions the study is for
- DCIS
- What is being tested?
- Standard treatment, digital mammography and radiotherapy
- Type of treatment
- Medical device, Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 2,500 participants
- Where
- 60 sitesNetherlands
- Study dates
- 13 Feb 2017to 1 Feb 2034
- Phase
- Interventional
- 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 45 years and older
- Women only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Written informed consent according to ICH GCP, and national andlocal regulations
- Women ≥ 45 years old, any menopausal status
- Unilateral DCIS grade I or II of any size
- American Society of Anesthesiologists (ASA) score 1-2 or 3, only if able to undergo surgery and yearly mammography
- Lesions of type 'calcifications only', detected by population-based or opportunistic screening mammography
- Within twelve weeks of detection, stereotactic biopsy has to be performed from the area of the calcifications. Preferably vacuum assisted biopsies. Alternatively, at least six 12 G needle biopsies (or the equivalent of six 12 G needles) may be used. ) . Whatever needle size is applied, it is essential to confirm that the biopsies contain representative calcifications via biopsy radiography, microscopy, or both.
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- Estrogen receptor ≥ 80% positive and HER2 negative: 0 or 1+ or 2+ with negative ISH), analysed centrally by pathology at NKI-AVL
- In case of an extended lesion (> 5 cm): biopsies were taken from the center and the periphery of the lesion, or from two peripheral parts of the lesion
- In case of multiple lesions with calcifications biopsies have been taken from two, but not more, groups of calcifications
- Marker placement at biopsy site (s) in the breast
- FFPE tissue blocks from the biopsy and, if applicable, from the resection specimen, are available for translational research purposes. If no FFPE tissue blocks can be submitted, 10 unstained slides of 4-5 micrometer thickness from the lesion(s) are acceptable
- Good correlation between pathological and radiological findings i.e. both findings confirm low-risk DCIS and no suspicion of high- grade DCIS or invasive breast cancer
- The interval between histologic diagnosis of low-risk DCIS on biopsy and inclusion is ≤ 12 weeks
Who cannot join
- Estrogen receptor negative: <80% or HER2 positive: 3+, or 2+ with positive ISH
- Presence of either mass, increased focal density or architectural distortion around the calcifications on mammography (suspicious for invasive disease)
- Presence of Paget's disease, invasive breast cancer, or pleomorphic LCIS; Lobular neoplasia, referring to atypical lobular hyperplasia (ALH) and/or classic Lobular Carcinoma In Situ according to the WHO Classification of Tumours of the Breast, is no reason to exclude, whereas pleomorphic LCIS is
- Symptomatic DCIS e.g. DCIS detected by palpation or bloody nipple discharge
- Synchronous invasive carcinoma in the contralateral breast
- Prior history of invasive breast cancer or DCIS, prior surgery because of benign breast lesion (s) is allowed
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- Prior history of other malignancy (except non-melanoma skin cancer and carcinoma in situ of the cervix) unless patient is discharged from follow-up for at least five years.
- Serious disease that precludes definitive surgical treatment (e.g cardiovascular/ pulmonary/ renal disease)
- Individual with a family member with a known gene mutation associated with increased risk of breast cancer, unless study participant is a proven non-carrier of mutation
- Pregnancy or breast-feeding. Contraceptive measures during the trial are mandatory for those patients that will participate in standard treatment arm and adequate counseling should be provided by the treating physician. The duration of contraception will be specified by the treating physician according to patient and treatment characteristics, standard clinical practice and national regulations
- Any psychological, familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule; those conditions should be discussed with the patient before registration in the trial
Trial locations and contacts
60 sites in 1 country.
60 sites in 1 country
Netherlands60 sites
Jeroen Bosch Ziekenhuis
's-Hertogenbosch
Noordwest Ziekenhuisgroep- site Alkmaar
Alkmaar
Flevoziekenhuis
Almere Stad
Onze Lieve Vrouwe Gasthuis
Amsterdam
The Netherlands Cancer Institute-Antoni Van Leeuwenhoekziekenhuis
Amsterdam
Rijnstate Ziekenhuis
Arnhem
Wilhelmina Ziekenhuis Assen
Assen
Rode Kruis Ziekenhuis
Beverwijk
Alexander Monro Ziekenhuis
Bilthoven
Amphia Ziekenhuis
Breda
Reinier de Graaf Gasthuis
Delft
Deventer Ziekenhuis
Deventer
Slingeland Ziekenhuis
Doetinchem
Albert Schweitzer Ziekenhuis
Dordrecht
Ziekenhuis Gelderse Vallei
Ede
Catharina Ziekenhuis
Eindhoven
Maxima Medisch Centrum
Eindhoven
Medisch Spectrum Twente Ariensplain
Enschede
Groene Hart Ziekenhuis
Gouda
Martini Ziekenhuis
Groningen
Universitair Medisch Centrum Groningen
Groningen
Spaarne Gasthuis
Haarlem
Saxenburgh Medisch Centrum
Hardenberg
Ziekenhuis St. Jansdal
Harderwijk
Tjongerschans Ziekenhuis
Heerenveen
Zuyderland Medisch Centrum
Heerlen
Ziekenhuisgroep Twente
Hengelo
Ter Gooi
Hilversum
Spaarne ziekenhuis
Hoofddorp
Treant Zorggroep Bethesda
Hoogeveen
Dijklander
Hoorn
Medisch Centrum Leeuwarden
Leeuwarden
Leids Universitair Medisch Centrum
Leiden
Alrijne Ziekenhuis
Leiderdorp
Haaglanden MC Antoniushove
Leidschendam
Academisch Ziekenhuis Maastricht
Maastricht
St. Antonius Ziekenhuis
Nieuwegein
Canisius-Wilhelmina Ziekenhuis
Nijmegen
Dijklander
Purmerend
Erasmus Medisch Centrum
Rotterdam
Maasstad Ziekenhuis
Rotterdam
Franciscus Gasthuis en Vlietland
Schiedam
Zuyderland Ziekenhuis
Sittard
Antonius Ziekenhuis
Sneek
Zorgsaam Zeeuws-Vlaanderen
Terneuzen
Zorgsaam Ziekenhuis
Terneuzen
HagaZiekenhuis
The Hague
Ziekenhuis Rivierenland
Tiel
St. Elisabeth Ziekenhuis
Tilburg
Bernhoven Ziekenhuis
Uden
Diakonessenhuis
Utrecht
Universitair Medisch Centrum Utrecht
Utrecht
Maxima Medisch Centrum - Locatie Veldhoven
Veldhoven
VieCuri - Medisch Centrum voor Noord-Limburg - Locatie Venlo
Venlo
St Jans Gasthuis
Weert
Streekziekenhuis Koningin Beatrix
Winterswijk
Zaans Medisch Centrum
Zaandam
Haga ziekenhuis loc Zoetermeer
Zoetermeer
Gelre ziekenhuizen
Zutphen
Isala Klinieken
Zwolle
About this study
Official title: Management of Low Risk Ductal Carcinoma in Situ (Low-risk DCIS): a Non-randomized, Multicenter, Non-inferiority Trial; Standard Therapy Approach Versus Active Surveillance
A substantial number of DCIS lesions will never form a health hazard, particularly if it concerns slow-growing low-risk DCIS (grade I and II). This implies that many women might be unnecessarily going through intensive treatment resulting in a decrease in quality of life and an increase in health care costs, without any survival benefit.
The LORD (LOw Risk DCIS) study is a non-randomized, international, multicenter, phase III non-inferiority trial, and aims to determine whether screen-detected low-risk DCIS can safely be managed by an active surveillance strategy or that the conventional treatment, being either WLE alone, WLE + RT, or mastectomy, and possibly HT, should remain the standard of care.
Read the detailed description
Background of the study:
The introduction of population-based breast cancer screening and implementation of digital mammography have led to an increased incidence of ductal carcinoma in situ (DCIS) without a decrease in the incidence of advanced breast cancer. This suggests DCIS overdiagnosis exists. We hypothesize that asymptomatic, low-risk DCIS (grade I and II DCIS) can safely be managed by active surveillance. If progression to invasive breast cancer would still occur, this will be lowgrade and hormone receptor positive with excellent survival rates. Also, breast-conserving treatment will still be an option, if no prior radiotherapy has been applied. It also may save many low-risk DCIS patients from intensive treatment.
Objective of the study:
The primary end-point is ipsilateral invasive breast tumor-free rate at 10 years.
Secondary end-points are among others: overall survival, breast cancer-specific survival, mastectomy rate and patient reported outcomes. To determine whether low- risk DCIS can safely (measured by ipsilateral invasive breast cancer rate at 10 years) be managed by an active surveillance strategy or if the conventional treatment, being either wide local excision (WLE) only, WLE plus radiotherapy or mastectomy, possibly followed by hormonal therapy, will remain the standard of care.
Study design:
Phase III, open-label, non-inferiority, multi-center, non-randomized clinical trial. By patient's preference, women will be included into one of the following arms: active surveillance or standard treatment according to local policy, being either WLE alone, WLE plus radiotherapy or mastectomy, possibly followed by hormonal therapy. The same follow-up scheme will be applied in both study arms, i.e. annual mammography for a period of five years and an additional two mammograms at year seven and ten.
- Conditions
- DCIS
- Being tested
- Standard treatment, digital mammography, radiotherapy
- Keywords
- Women, DCIS grade I and II, Active surveillance, Standard treatment
- Medical subject headings
- Carcinoma, Intraductal, Noninfiltrating
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Standard treatmentOther
wide local excision only or wide local excision and radiotherapy or mastectomy.
+/- hormonal therapy
digital mammographyDevice
Also called Active surveillance
annual mammography
radiotherapyRadiation
according local policy
| Study group | Role | What they receive |
|---|---|---|
| Standard treatment | Active comparator | Standard treatment according to local policy. This can be either wide local excision only, wide local excision and radiotherapy, or mastectomy. Hormonal therapy is also allowed.
Follow-up:by annual digital mammography for a period of 5 years and a digital mammography at 7 and 10 years. Receives: Other: Standard treatment; Radiation: radiotherapy |
| Active surveillance | Experimental | Active surveillance : monitoring by annual digital mammography for a period of 5 years and a digital mammography at 7 and 10 years. Receives: Device: digital mammography |
What is being measured
The primary outcome is the main question the study is designed to answer.
Ipsilateral invasive breast cancer-free rate at 10 years
Ipsilateral invasive breast cancer-free rate at 10 years (both therapeutic policies
Measured: 10 years from inclusion
Secondary outcomes (12)
Rate of invasive disease at the final pathology specimen (standard arm only)
Rate of invasive disease at the final pathology specimen (standard arm only)
Measured: from inclusion till time of invasive disease during 10 years at minimum
Rate of grade III DCIS at the final pathology specimen (standard arm only)
Rate of grade III DCIS at the final pathology specimen (standard arm only)
Measured: from inclusion till time of invasive disease during 10 years at minimum
Biopsy rate for ipsilateral breast during follow-up
Biopsy rate for ipsilateral breast during follow-up (both therapeutic policies)
Measured: from inclusion to the time of death, during 10 years at minimum
Masectomy rate for ipsilateral breast
Masectomy rate for ipsilateral breast, baseline or subsequent ipsilateral DCIS or iBC (both therapeutic policies)
Measured: from inclusion to the time of ipsilateral breast cancer or death, during 10 years at minimum
Time to ipsilateral grade III DCIS
Time to ipsilateral grade III DCIS, both therapeutic policies
Measured: from inclusion to the development of a new ipsilateral DCIS of grade III, up to 10 years
Time to contralateral DCIS
Time to contralateral DCIS, both therapeutic policies
Measured: from inclusion to the development of a new contralateral DCIS I,II,III, up to 10 years
Time to contralateral invasive breast cancer
Time to contralateral invasive breast cancer,, both therapeutic policies
Measured: from inclusion to the development of a contralateral invasive breast cancer, up to 10 years
Time to failure of active surveillance strategy
Time to failure of active surveillance strategy, i.e. time to crossover to standard treatment, due to any cause
Measured: from inclusion to the time patients received standard treatment to the ipsilateral breast, up to 10 years
Distant metastases free interval
Distant metastases free interval,both therapeutic policies
Measured: from inclusion to the time of invasive distant metastases or death due to breast cancer, up to 10 years
Overall survival
Overall survival,both therapeutic policies
Measured: from inclusion to the time of death, during 10 years at minimum
Health Related Quality of life
General QoL/global health perception, specific funcionalities, pain ( both therapeutic policies
Measured: 6 times from inclusion to 10 yrs follow-up
Cost-effectiveness
Health economic evaluation (both therapeutic policies)
Measured: 6 times from inclusion to 10 years follow-up
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted8 Jul 2015 (estimated)
- Study start13 Feb 2017
- Primary completion1 Feb 2034 (estimated)
- Study completion1 Feb 2034 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for DCISStudies of the same condition, open and under way.
- More trials run by The Netherlands Cancer InstituteThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 2,500 participants (estimated)
Sponsor and investigators
- Lead sponsor
- The Netherlands Cancer Institute
- Sponsor type
- University, hospital or other
- Collaborators
- Borstkanker Onderzoek Groep, European Organisation for Research and Treatment of Cancer - EORTC
- Responsible party
- Sponsor
- Investigators
- Jelle Wesseling, PhD, Principal investigator, The Netherlands Cancer Institute
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02492607
- Sponsor's protocol ID
- M18LORD
- Other IDs
- 2014-04, EORTC-1401
- Acronym
- LORD
- Status last verified
- Jan 2025
- First submitted
- 24 Jun 2015
- Last updated
- 26 Jan 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Elshof LE, Tryfonidis K, Slaets L, van Leeuwen-Stok AE, Skinner VP, Dif N, Pijnappel RM, Bijker N, Rutgers EJ, Wesseling J. Feasibility of a prospective, randomised, open-label, international multicentre, phase III, non-inferiority trial to assess the safety of active surveillance for low risk ductal carcinoma in situ - The LORD study. Eur J Cancer. 2015 Aug;51(12):1497-510. doi: 10.1016/j.ejca.2015.05.008. Epub 2015 May 26.
PubMed 26025767
Study at a glance
From the registry record, last updated by the sponsor on 26 Jan 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Management of Low Risk Ductal Carcinoma in Situ (Low-risk DCIS): a Non-randomized, Multicenter, Non-inferiority Trial; Standard Therapy Approach Versus Active Surveillance
- ClinicalTrials.gov ID
- NCT02492607
- Acronym / sponsor ID
- LORD / M18LORD
- Conditions
- DCIS
- Keywords
- Women, DCIS grade I and II, Active surveillance, Standard treatment
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 2,500 participants (estimated)
- Lead sponsor
- The Netherlands Cancer InstituteUniversity, hospital or other
- Collaborators
- Borstkanker Onderzoek Groep, European Organisation for Research and Treatment of Cancer - EORTC
- Study start
- 13 Feb 2017 (actual)
- Primary completion
- 1 Feb 2034 (estimated)
- Study completion
- 1 Feb 2034 (estimated)
- First posted
- 8 Jul 2015 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
A substantial number of DCIS lesions will never form a health hazard, particularly if it concerns slow-growing low-risk DCIS (grade I and II). This implies that many women might be unnecessarily going through intensive treatment resulting in a decrease in quality of life and an increase in health care costs, without any survival benefit.
The LORD (LOw Risk DCIS) study is a non-randomized, international, multicenter, phase III non-inferiority trial, and aims to determine whether screen-detected low-risk DCIS can safely be managed by an active surveillance strategy or that the conventional treatment, being either WLE alone, WLE + RT, or mastectomy, and possibly HT, should remain the standard of care.
Detailed description
Background of the study:
The introduction of population-based breast cancer screening and implementation of digital mammography have led to an increased incidence of ductal carcinoma in situ (DCIS) without a decrease in the incidence of advanced breast cancer. This suggests DCIS overdiagnosis exists. We hypothesize that asymptomatic, low-risk DCIS (grade I and II DCIS) can safely be managed by active surveillance. If progression to invasive breast cancer would still occur, this will be lowgrade and hormone receptor positive with excellent survival rates. Also, breast-conserving treatment will still be an option, if no prior radiotherapy has been applied. It also may save many low-risk DCIS patients from intensive treatment.
Objective of the study:
The primary end-point is ipsilateral invasive breast tumor-free rate at 10 years.
Secondary end-points are among others: overall survival, breast cancer-specific survival, mastectomy rate and patient reported outcomes. To determine whether low- risk DCIS can safely (measured by ipsilateral invasive breast cancer rate at 10 years) be managed by an active surveillance strategy or if the conventional treatment, being either wide local excision (WLE) only, WLE plus radiotherapy or mastectomy, possibly followed by hormonal therapy, will remain the standard of care.
Study design:
Phase III, open-label, non-inferiority, multi-center, non-randomized clinical trial. By patient's preference, women will be included into one of the following arms: active surveillance or standard treatment according to local policy, being either WLE alone, WLE plus radiotherapy or mastectomy, possibly followed by hormonal therapy. The same follow-up scheme will be applied in both study arms, i.e. annual mammography for a period of five years and an additional two mammograms at year seven and ten.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Standard treatment | Active comparator | Other: Standard treatment, Radiation: radiotherapyStandard treatment according to local policy. This can be either wide local excision only, wide local excision and radiotherapy, or mastectomy. Hormonal therapy is also allowed. Follow-up:by annual digital mammography for a period of 5 years and a digital mammography at 7 and 10 years. |
| Active surveillance | Experimental | Device: digital mammographyActive surveillance : monitoring by annual digital mammography for a period of 5 years and a digital mammography at 7 and 10 years. |
Who may qualify
- Ages
- 45 years and older
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (13 listed)
- Written informed consent according to ICH GCP, and national andlocal regulations
- Women ≥ 45 years old, any menopausal status
- Unilateral DCIS grade I or II of any size
- American Society of Anesthesiologists (ASA) score 1-2 or 3, only if able to undergo surgery and yearly mammography
- Lesions of type 'calcifications only', detected by population-based or opportunistic screening mammography
Key exclusion criteria (11 listed)
- Estrogen receptor negative: <80% or HER2 positive: 3+, or 2+ with positive ISH
- Presence of either mass, increased focal density or architectural distortion around the calcifications on mammography (suspicious for invasive disease)
- Presence of Paget's disease, invasive breast cancer, or pleomorphic LCIS; Lobular neoplasia, referring to atypical lobular hyperplasia (ALH) and/or classic Lobular Carcinoma In Situ according to the WHO Classification of Tumours of the Breast, is no reason to exclude, whereas pleomorphic LCIS is
- Symptomatic DCIS e.g. DCIS detected by palpation or bloody nipple discharge
- Synchronous invasive carcinoma in the contralateral breast
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Standard treatmentwide local excision only or wide local excision and radiotherapy or mastectomy. +/- hormonal therapy | Other | Standard treatment |
| digital mammographyAlso: Active surveillanceannual mammography | Device | Active surveillance |
| radiotherapyaccording local policy | Radiation | Standard treatment |
Primary outcome
Ipsilateral invasive breast cancer-free rate at 10 years
Time frame: 10 years from inclusion
Ipsilateral invasive breast cancer-free rate at 10 years (both therapeutic policies
12 secondary outcomes
Rate of invasive disease at the final pathology specimen (standard arm only)
Time frame: from inclusion till time of invasive disease during 10 years at minimum
Rate of grade III DCIS at the final pathology specimen (standard arm only)
Time frame: from inclusion till time of invasive disease during 10 years at minimum
Biopsy rate for ipsilateral breast during follow-up
Time frame: from inclusion to the time of death, during 10 years at minimum
Masectomy rate for ipsilateral breast
Time frame: from inclusion to the time of ipsilateral breast cancer or death, during 10 years at minimum
Time to ipsilateral grade III DCIS
Time frame: from inclusion to the development of a new ipsilateral DCIS of grade III, up to 10 years
Time to contralateral DCIS
Time frame: from inclusion to the development of a new contralateral DCIS I,II,III, up to 10 years
Time to contralateral invasive breast cancer
Time frame: from inclusion to the development of a contralateral invasive breast cancer, up to 10 years
Time to failure of active surveillance strategy
Time frame: from inclusion to the time patients received standard treatment to the ipsilateral breast, up to 10 years
Distant metastases free interval
Time frame: from inclusion to the time of invasive distant metastases or death due to breast cancer, up to 10 years
Overall survival
Time frame: from inclusion to the time of death, during 10 years at minimum
Health Related Quality of life
Time frame: 6 times from inclusion to 10 yrs follow-up
Cost-effectiveness
Time frame: 6 times from inclusion to 10 years follow-up
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 26 Jan 2026.
- Background: PubMed 26025767Elshof LE, Tryfonidis K, Slaets L, van Leeuwen-Stok AE, Skinner VP, Dif N, Pijnappel RM, Bijker N, Rutgers EJ, Wesseling J. Feasibility of a prospective, randomised, open-label, international multicentre, phase III, non-inferiority trial to assess the safety of active surveillance for low risk ductal carcinoma in situ - The LORD study. Eur J Cancer. 2015 Aug;51(12):1497-510. doi: 10.1016/j.ejca.2015.05.008. Epub 2015 May 26.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Jelle Wesseling, PhD principal investigator
The Netherlands Cancer Institute
60 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Standard treatment, digital mammography and radiotherapy in people with DCIS, run by The Netherlands Cancer Institute at 60 sites in Netherlands.
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 13 inclusion and 11 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: under way, not looking for participants, as of the sponsor's last update on 26 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 60 sites in Netherlands. 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?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Ipsilateral invasive breast cancer-free rate at 10 years (time frame: 10 years from inclusion). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02492607, which also lists 1 linked publication.
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 26 Jan 2026.