Randomized Study on Postmenopausal Women With Early Stage Breast Cancer: WBI Versus APBI

NCT ID: NCT02375048

Last Updated: 2018-10-24

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE2

Total Enrollment

179 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-01-19

Study Completion Date

2018-02-01

Brief Summary

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Selected patients with early stage breast cancer undergone conservative surgery were randomized in two arms: Hypofractionated Whole Breast Irradiation versus Accelerated Partial Breast Irradiation.

Detailed Description

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Patients treated with Hypofractionated Whole Breast Irradiation (WBI) received SIB irradiation of the whole breast and surgical bed at two different dose levels. Dose prescription was 40.5 Gy to PTVWB and 48.0 Gy to PTVboost in 15 fractions over 3 weeks, with simultaneous integrated boost delivering 2.7 and 3.2Gy/fraction for each PTV respectively. Daily image guided radiotherapy (IGRT) were generated before each treatment session in each patient to verify the set-up.

Accelerated Partial Breast Irradiation (APBI) using external intensity -modulated radiotherapy (VMAT RA) was delivered at a dose of 30 Gy in five 6-Gy/day fractions over 10 days (every other day) with IGRT at each treatment.

Conditions

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Cancer of Breast

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Hypofractionated WBI

Patients treated with hypofractionated Whole Breast Irradiation received Simultaneous Integrated Boost irradiation of the whole breast and surgical bed at two different dose levels using external intensity - modulated radiotherapy (VMAT RA).

Group Type ACTIVE_COMPARATOR

Hypofractionated WBI

Intervention Type RADIATION

Dose prescription was 40.5 Gy to PTVWB and 48.0 Gy to PTVboost in 15 fractions over 3 weeks, with simultaneous integrated boost delivering 2.7 and 3.2Gy/fraction for each PTV respectively. Daily image guided radiotherapy (IGRT) were generated before each treatment session in each patient to verify the set-up.

Accelerated Partial Breast Irradiation

Patients treated with Accelerated Partial Breast Irradiation received the irradiation on surgical bed using external intensity - modulated radiotherapy (VMAT RA).

Group Type EXPERIMENTAL

Accelerated Partial Breast Irradiation

Intervention Type RADIATION

APBI was delivered at a dose of 30 Gy in five 6-Gy/day fractions over 10 days (every other day) with IGRT at each treatment.

Interventions

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Hypofractionated WBI

Dose prescription was 40.5 Gy to PTVWB and 48.0 Gy to PTVboost in 15 fractions over 3 weeks, with simultaneous integrated boost delivering 2.7 and 3.2Gy/fraction for each PTV respectively. Daily image guided radiotherapy (IGRT) were generated before each treatment session in each patient to verify the set-up.

Intervention Type RADIATION

Accelerated Partial Breast Irradiation

APBI was delivered at a dose of 30 Gy in five 6-Gy/day fractions over 10 days (every other day) with IGRT at each treatment.

Intervention Type RADIATION

Eligibility Criteria

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Inclusion Criteria

* 55\< Age \<70
* Tumor size ≤ 2 cm
* pN0 (SN biopsy or ALND)
* ER/PgR positive
* Margins \> 5 mm (either at initial surgery or at re-excision)
* Clips placed in the surgical bed (minimum of 4 clips)
* Unicentric only
* No lymphovascular invasion
* Any grade
* No extensive intraductal component (\>25%)
* Written informed consent

Exclusion Criteria

* Prior thoracic radiation therapy
* Oncoplastic surgery / No clips in the surgical bed
* Multicentric cancer
* Autoimmune disease, vasculitis, collagenopathy or scleroderma that may predispose to late sequelae
Minimum Eligible Age

55 Years

Maximum Eligible Age

70 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Istituto Clinico Humanitas

OTHER

Sponsor Role lead

Responsible Party

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Michele Tedeschi

MD

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Marta Scorsetti, MD

Role: PRINCIPAL_INVESTIGATOR

Istituto Clinico Humanitas

Locations

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Istituto Clinico Humanitas

Rozzano, Milano, Italy

Site Status

Countries

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Italy

Other Identifiers

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1288

Identifier Type: -

Identifier Source: org_study_id

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