Hypofractionated Vs Conventional Fractionated Postmastectomy Radiotherapy for High Risk Breast Cancer

NCT ID: NCT03856372

Last Updated: 2019-02-27

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

RECRUITING

Clinical Phase

NA

Total Enrollment

1494 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-09-01

Study Completion Date

2028-10-30

Brief Summary

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The study was designed to investigate whether hypofractionated adjuvant radiotherapy is noninferior to conventionally fractionated adjuvant radiotherapy in terms of efficacy and toxicities for high risk breast cancer patients treated with mastectomy

Detailed Description

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The randomization is between 50 Gy / 25 fractions and 42.5 Gy/16 fractions, 5 fractions weekly.

Eligible breast cancer patients with mastectomy and axillary dissection will be randomized 1:1 into two groups: conventional fractionated (CF) radiotherapy of 50 Gy / 25 fractions and hypofractionated (HF) radiotherapy of 42.5 Gy/16 fractions, 5 fractions weekly.

The primary endpoint is loco-regional recurrence. Other cancer related events and acute/late radiation morbidities will also be evaluated. The patients will be followed for 10 years.

It is hypothesized that for women operated for high risk breast cancer with indication of postmastectomy adjuvant radiotherapy, hypofractionated radiotherapy is noninferior to conventional fractionated radiotherapy in terms of the efficacy and toxicities.

Conditions

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Breast Cancer

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

42.5 Gy / 16 fractions, 2.66 Gy per fraction, 5 fractions weekly

Group Type EXPERIMENTAL

Hypofractionated

Intervention Type RADIATION

daily fractions, five fractions per week.

Conventional

50 Gy / 25 fractions, 2.00 Gy per fraction, 5 fractions weekly

Group Type ACTIVE_COMPARATOR

Conventional

Intervention Type RADIATION

daily fractions, five fractions per week.

Interventions

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Hypofractionated

daily fractions, five fractions per week.

Intervention Type RADIATION

Conventional

daily fractions, five fractions per week.

Intervention Type RADIATION

Other Intervention Names

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Experimental Arm Standard Arm

Eligibility Criteria

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Inclusion Criteria

* Female
* Age18-75 years
* Pathologically confirmed invasive breast cancer
* Treated with mastectomy and axillary lymph node dissection with more than 10 resected lymph nodes. Immediate or delayed ipsilateral breast cancer reconstruction is accepted
* Negative surgical margins
* Pathologic T1-2N1 with at least one of the following risk factors: \<40 years, Grade 3, lymphovascular invasion positive, ER/PR negative or HER2 overexpression, or pT3-4, or pN2-3 (four or more positive axillary lymph nodes)
* No distant metastases
* No supraclavicular or internal mammary nodes metastases
* ECOG:0-1
* Adjuvant systemic therapy with chemotherapy, endocrine therapy and anti-HER2 treatment is accepted.
* No neoadjuvant chemotherapy
* Fit for postoperative radiotherapy. No contraindications to radiotherapy
* Signed informed consent

Exclusion Criteria

* Concurrent or previous malignancy excluding basal or squamous cell carcinoma of the skin
* Previous radiotherapy to the chest wall or regional lymph node areas
* Patients with severe non-malignant comorbidity in cardiovascular or respiration system
* Patients with medical contraindication for radiotherapy: systemic lupus erythematosus, cirrhosis
* pT1-2N1 with none of the following risk factors: \<40 years, Grade 3, lymphovascular invasion positive, ER/PR negative or HER2 overexpression
* Patients with supraclavicular or internal mammary nodes metastases
* Known definitive clinical or radiologic evidence of metastatic disease
* Bilateral breast cancer or historically confirmed contralateral invasive breast cancer
* Treated with neoadjuvant chemotherapy
* ECOG: 3-4
* Pregnant or lactating
* Conditions indicating that the patient cannot go through the radiation therapy or follow up
* Unable or unwilling to sign informed consent
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Fudan University

OTHER

Sponsor Role lead

Responsible Party

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Jinli Ma

Associate Professor of department of radiation oncology

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Jinli Ma, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Fudan University

Locations

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Suzhou Municipal hospital

Suzhou, Jiangsu, China

Site Status NOT_YET_RECRUITING

Fudan University Shanghai Cancer Center

Shanghai, Shanghai Municipality, China

Site Status RECRUITING

Huangpu Branch, Shanghai ninth people's hospital

Shanghai, Shanghai Municipality, China

Site Status NOT_YET_RECRUITING

Countries

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China

Central Contacts

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Jinli Ma, MD, PhD

Role: CONTACT

+86-15221033376

Xingxing Chen, MD, PhD

Role: CONTACT

+86-13585547068

Facility Contacts

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Qunchao Hu, MD, PhD

Role: primary

Jinli Ma, MD, PhD

Role: primary

+86-15221033376

Xingxing Chen, MD, PhD

Role: backup

+86-13585547068

Gang Chen, MD

Role: primary

Other Identifiers

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FDRT-BC008

Identifier Type: -

Identifier Source: org_study_id

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