Local control and toxicity in breast conserving therapy using APBI is not inferior to classical 50 Gy irradiation.
ID
Bron
Verkorte titel
Aandoening
Early stage breast cancer in elderly female patients.
age >=60 year
T1/2 N0 M0
Oudere vrouwen met borstkanker in een vroeg stadium
leeftijd >= 60 jaar
Ondersteuning
Onderzoeksproduct en/of interventie
Uitkomstmaten
Primaire uitkomstmaten
Loco regional tumor control at 5 years.
Achtergrond van het onderzoek
The treatment policy for elderly patients with early stage breast cancer is largely intuitive and is just partly based on evidence as these patients are often not included in phase II/III studies. As a consequence a relative large proportion is treated by breast ablation and sentinel node biopsy. Accelerated partial breast irradiation (APBI) either by intra-operative or external beam radiotherapy might be a good alternative for elderly patients offering less treatment burden in a shortened treatment time and a limited chance of recurrence. International studies using APBI claim equivalent tumor control and cosmetic results compared to conventional fractionated radiotherapy.
The elderly patient is a complex patient due to the age, the (geriatric) condition with frequent co-morbidity and usage of multiple medications. The collection of information of these (geriatric) conditions in Dutch radiotherapy centers will give us a solid base to construct algorithms to predict patient outcome (tumor related, morbidity and intercurrent disease).
Doel van het onderzoek
Local control and toxicity in breast conserving therapy using APBI is not inferior to classical 50 Gy irradiation.
Onderzoeksopzet
1. Before surgery;
2. 3, 6 and 12 months after surgery;
3. Yearly until death.
Onderzoeksproduct en/of interventie
Depending on the facilities of the centre either:
1. Intra-operative radiotherapy at lumpectomy (21 Gy 90% isodose, “ELIOT procedure”);
2. Postoperative external beam radiotherapy (3DCRT or IMRT, 10x3,4 Gy ICRU, 10 fractions in 2 weeks).
Publiek
Wetenschappelijk
Belangrijkste voorwaarden om deel te mogen nemen (Inclusiecriteria)
1. Histological confirmed breast cancer (DCIS and invasive) subtypes;
2. T1 as determined by ultrasound;
3. T2 smaller than 30 mm as determined by ultrasound, ER/PR + Herneu --, + or ++;
3. N0 on palpation / ultrasound examination; pN1mi, pN1a (by axill.lymphnode dissection)
Unicentric, Unifocal disease (radiological), multifocal when limited within 2 cm;
4. Age 60 or older;
5. Any hormonal receptor status, hormonal therapy allowed cf Dutch treatment guidelines;
6. Technically eligible for lumpectomy or radiotherapy;
7. No contra indications for lumpectomy and sentinel node procedure;
8. Written informed consent;
9. Willing to fill out the QOL, geriatric Q and comorbidity questionnaires.
Belangrijkste redenen om niet deel te kunnen nemen (Exclusiecriteria)
1. Patients not eligible / fit for lumpectomy and sentinel node procedure;
2. T2 smaller than 30 mm and triple negative or Her2neu +++;
3. pT2(>30 mm), pT3 and pT4;
4. Positive surgical margins;
5. Multi centricity; multifocal (> 2cm from the index lesion);
6. Extensive intraductal carcinoma; lympho-vascular invasion;
7. Previous treatment of ipsilateral breast tumor (DCIS or invasive);
8. Paget disease of the nipple;
9. Distant metastases; > pN2a (4 or more positive axillary lymphnodes);
10. Previous radiotherapy on the thoracic region;
11. (Neo adjuvant) chemotherapy or other Cytotoxic medication;
12. Collagen diseases (systemic erythematosus lupus, scleroderma, dermatomyositis);
13. Psychiatric diseases or other that prevents signing of informed consent;
14. Other neoplasm’s in the last 5 year with exception of skin tumors (excl melanoma) and intraepithelial lesions of the cervix uteri.
Opzet
Deelname
Opgevolgd door onderstaande (mogelijk meer actuele) registratie
Geen registraties gevonden.
Andere (mogelijk minder actuele) registraties in dit register
Geen registraties gevonden.
In overige registers
| Register | ID |
|---|---|
| NTR-new | NL2791 |
| NTR-old | NTR2931 |
| Ander register | METC ZuidwestHolland : 10-042 |
| ISRCTN | ISRCTN wordt niet meer aangevraagd. |