Hypofractionated Versus Conventional Fractionation Radiotherapy

NCT ID: NCT04015531

Last Updated: 2019-07-11

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

UNKNOWN

Clinical Phase

NA

Total Enrollment

80 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-07-31

Study Completion Date

2020-12-31

Brief Summary

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This study was designed to evaluate the acute toxicity and quality of life of hypofractionated radiation versus conventional when regional node irradiation is indicated after breast-conserving surgery or mastectomy.

Detailed Description

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Investigators hypothesize that hypofractionated radiotherapy is equal effective and safe as conventional radiotherapy in breast cancer patients undergoing regional nodal irradiation.

Eligible breast cancer patients are randomized 1:1 into the following two groups:

1. Hypofractionated therapy: 40 Gy in 15 fractions of 2.67 Gy in breast or chest wall and nodal drainage with Concurrent boost 48.0 Gy / 3.2 Gy daily in tumor bed, in case of conservative surgery;
2. Standard fractionation: 50 Gy in 25 fractions in breast or chest wall and nodal drainage with sequential tumor bed boost with 10 Gy in 5 fractions in tumor bed in case of conservative surgery.

Patients will be followed for 6 months after radiotherapy to evaluate acute toxicity and quality of life.

Conditions

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Breast Cancer Radiation Toxicity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors
Radiation toxicity will be analysed by a blind second investigator.

Study Groups

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Conventional radiotherapy

50 Gy in 25 fractions to chest wall or whole breast and regional lymph regions (supraclavicular fossa with or without axilla), followed by tumor bed boost of 10 Gy in 5 fractions in case of breast conserving surgery.

Total time: 5-6 weeks.

Group Type ACTIVE_COMPARATOR

Conventional radiotherapy

Intervention Type RADIATION

50 Gy / 25 fractions / 5-6 weeks / Sequential boost of 10 Gy in 5 fractions, in case of conservative surgery.

Hypofractionated radiotherapy

40 Gy in 15 fractions (2.67 Gy each) to chest wall or whole breast and regional lymph regions (supraclavicular fossa with or without axilla).

Patients undergoing breast conserving surgery will receive concomitant boost with total dose of 48 Gy in 15 fractions (3.20 Gy each) to tumor bed.

Total time: 3 weeks.

Group Type EXPERIMENTAL

Hypofractionated radiotherapy

Intervention Type RADIATION

40 Gy / 15 fractions / 3 weeks / Concomitant boost with total dose of 48 Gy in 15 fractions, in case of conservative surgery.

Interventions

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Conventional radiotherapy

50 Gy / 25 fractions / 5-6 weeks / Sequential boost of 10 Gy in 5 fractions, in case of conservative surgery.

Intervention Type RADIATION

Hypofractionated radiotherapy

40 Gy / 15 fractions / 3 weeks / Concomitant boost with total dose of 48 Gy in 15 fractions, in case of conservative surgery.

Intervention Type RADIATION

Other Intervention Names

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Standard fractionation Hypofractionated therapy

Eligibility Criteria

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Inclusion Criteria

* Female;
* Older than 18;
* Breast cancer stage T1 - T3;
* At least 1 lymph node positive;
* Treated with mastectomy or conservative surgery;
* Negative surgical margins;
* No distant metastasis;
* No supraclavicular or internal mammary nodes metastases;
* Adjuvant systemic therapy with chemotherapy, endocrine therapy or anti-HER2 (Human - - Epidermal Growth Factor Receptor 2) treatment is accepted;
* Signed informed consent.

Exclusion Criteria

* Positive surgical margins;
* Concomitant chemotherapy;
* Supraclavicular or internal mammary nodes metastases;
* Distant metastasis;
* Previous thoracic radiotherapy;
* Bilateral breast cancer;
* Patients with collagen diseases;
* Unable or unwilling to sign inform consent.
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Hospital da Baleia

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Gabriel Oliveira B Gil, MD

Role: PRINCIPAL_INVESTIGATOR

Baleia Hospital

Central Contacts

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Gabriel Oliveira B Gil, MD

Role: CONTACT

55 31 984463767

Darly GS Delfino, MSc

Role: CONTACT

55 31 971735501

References

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Wang SL, Fang H, Song YW, Wang WH, Hu C, Liu YP, Jin J, Liu XF, Yu ZH, Ren H, Li N, Lu NN, Tang Y, Tang Y, Qi SN, Sun GY, Peng R, Li S, Chen B, Yang Y, Li YX. Hypofractionated versus conventional fractionated postmastectomy radiotherapy for patients with high-risk breast cancer: a randomised, non-inferiority, open-label, phase 3 trial. Lancet Oncol. 2019 Mar;20(3):352-360. doi: 10.1016/S1470-2045(18)30813-1. Epub 2019 Jan 30.

Reference Type BACKGROUND
PMID: 30711522 (View on PubMed)

EBCTCG (Early Breast Cancer Trialists' Collaborative Group); McGale P, Taylor C, Correa C, Cutter D, Duane F, Ewertz M, Gray R, Mannu G, Peto R, Whelan T, Wang Y, Wang Z, Darby S. Effect of radiotherapy after mastectomy and axillary surgery on 10-year recurrence and 20-year breast cancer mortality: meta-analysis of individual patient data for 8135 women in 22 randomised trials. Lancet. 2014 Jun 21;383(9935):2127-35. doi: 10.1016/S0140-6736(14)60488-8. Epub 2014 Mar 19.

Reference Type BACKGROUND
PMID: 24656685 (View on PubMed)

Duxbury PJ, Gandhi A, Kirwan CC, Jain Y, Harvey JR. Current attitudes to breast reconstruction surgery for women at risk of post-mastectomy radiotherapy: A survey of UK breast surgeons. Breast. 2015 Aug;24(4):502-12. doi: 10.1016/j.breast.2015.05.002. Epub 2015 May 26.

Reference Type BACKGROUND
PMID: 26021276 (View on PubMed)

START Trialists' Group; Bentzen SM, Agrawal RK, Aird EG, Barrett JM, Barrett-Lee PJ, Bliss JM, Brown J, Dewar JA, Dobbs HJ, Haviland JS, Hoskin PJ, Hopwood P, Lawton PA, Magee BJ, Mills J, Morgan DA, Owen JR, Simmons S, Sumo G, Sydenham MA, Venables K, Yarnold JR. The UK Standardisation of Breast Radiotherapy (START) Trial A of radiotherapy hypofractionation for treatment of early breast cancer: a randomised trial. Lancet Oncol. 2008 Apr;9(4):331-41. doi: 10.1016/S1470-2045(08)70077-9. Epub 2008 Mar 19.

Reference Type BACKGROUND
PMID: 18356109 (View on PubMed)

Shaitelman SF, Schlembach PJ, Arzu I, Ballo M, Bloom ES, Buchholz D, Chronowski GM, Dvorak T, Grade E, Hoffman KE, Kelly P, Ludwig M, Perkins GH, Reed V, Shah S, Stauder MC, Strom EA, Tereffe W, Woodward WA, Ensor J, Baumann D, Thompson AM, Amaya D, Davis T, Guerra W, Hamblin L, Hortobagyi G, Hunt KK, Buchholz TA, Smith BD. Acute and Short-term Toxic Effects of Conventionally Fractionated vs Hypofractionated Whole-Breast Irradiation: A Randomized Clinical Trial. JAMA Oncol. 2015 Oct;1(7):931-41. doi: 10.1001/jamaoncol.2015.2666.

Reference Type BACKGROUND
PMID: 26247543 (View on PubMed)

Bekelman JE, Sylwestrzak G, Barron J, Liu J, Epstein AJ, Freedman G, Malin J, Emanuel EJ. Uptake and costs of hypofractionated vs conventional whole breast irradiation after breast conserving surgery in the United States, 2008-2013. JAMA. 2014 Dec 17;312(23):2542-50. doi: 10.1001/jama.2014.16616.

Reference Type BACKGROUND
PMID: 25494006 (View on PubMed)

Jagsi R, Falchook AD, Hendrix LH, Curry H, Chen RC. Adoption of hypofractionated radiation therapy for breast cancer after publication of randomized trials. Int J Radiat Oncol Biol Phys. 2014 Dec 1;90(5):1001-9. doi: 10.1016/j.ijrobp.2014.09.032.

Reference Type BACKGROUND
PMID: 25539365 (View on PubMed)

Other Identifiers

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RT 1901

Identifier Type: -

Identifier Source: org_study_id

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