NCT05491395

Brief Summary

RATIONALE: Radiotherapy (RT) can be indicated to patients submitted to breast-conserving surgery, but, despite the benefits, adjuvant RT can cause contracture generated by tissue fibrosis in patients with immediate prosthetic reconstruction, which could cause prosthesis loss. The biological explanation of this outcome is not fully understood, but recent advances in the analysis of patient-derived blood can contribute to establishing a connection of molecular alterations related to this clinical outcome. There is not a consensus about using hypofractionated RT schemes for patients with BCS and breast reconstruction since no studies had investigated the reasons why some patients lose the prosthesis. PURPOSE: This study will evaluate G3 toxicity rate in breast cancer patients with immediate prosthetic reconstruction, submitted to hypofractionated radiotherapy, analyzing capsular contracture, leakage, infection, and bad positioning in order to demonstrate the noninferiority of Hypo-RT with the conventional RT. Additionally, the molecular profile of blood samples will be investigated in order to find biomarkers related to inflammations processes and response to treatment.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
120

participants targeted

Target at P50-P75 for not_applicable breast-cancer

Timeline
35mo left

Started Jun 2022

Longer than P75 for not_applicable breast-cancer

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress57%
Jun 2022May 2029

First Submitted

Initial submission to the registry

June 13, 2022

Completed
14 days until next milestone

Study Start

First participant enrolled

June 27, 2022

Completed
1 month until next milestone

First Posted

Study publicly available on registry

August 8, 2022

Completed
3.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2026

Completed
3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2029

Expected
Last Updated

August 8, 2022

Status Verified

June 1, 2022

Enrollment Period

3.8 years

First QC Date

June 13, 2022

Last Update Submit

August 4, 2022

Conditions

Keywords

breast cancer, radiation therapy, hypofractionated, biomarkers

Outcome Measures

Primary Outcomes (1)

  • Assess the G3 toxicity rate

    loss of the prosthesis (complication that requires surgical intervention: capsular contracture, leakage, infection, malpositioning)

    2 years

Secondary Outcomes (8)

  • Local recurrence

    5 years

  • Assessment of quality of life through the EORTC Questionnaires European Organization for Research and Treatment of Cancer, where a high or low score may suggest good quality of life depending on the domain of the questionnaire

    2 years

  • Comparison of self-image using the EORTC Questionnaires European Organization for Research and Treatment of Cancer, where a high or low score may suggest good quality of life depending on the domain of the questionnaire

    5 years

  • Compare acute and late radiodermatitis rates by Common Terminology Criteria for Adverse Events (CTCAE) 4.0

    2 years

  • Dosimetric analysis

    5 years

  • +3 more secondary outcomes

Study Arms (2)

Post Mastectomy Hypofractionated Radiotherapy Arm

EXPERIMENTAL

Post Mastectomy Hypofractionated Radiotherapy Arm

Radiation: Hypofractionation

Post Mastectomy Conventional Radiotherapy

NO INTERVENTION

Post Mastectomy Conventional Radiotherapy

Interventions

Hypofractionation scheme will comprise 40 Gy in 15 fractions

Post Mastectomy Hypofractionated Radiotherapy Arm

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Women with confirmed histological diagnosis of invasive ductal carcinoma and lobular breast carcinoma;
  • Radical mastectomy with immediate reconstruction with a prosthesis;
  • Patients indicated for adjuvant RT;
  • Any lymph node status;
  • With or without adjuvant chemotherapy;
  • ECOG performance status from 0-2;
  • \> 18 years old;
  • Informed Consent Form applied before any study-specific procedure.

You may not qualify if:

  • Another histological diagnosis than invasive ductal carcinoma or lobular carcinoma;
  • Previous history of neoplasm and/or radiotherapy and/ or quimiotherapy before this study;
  • Distant metastatic disease;
  • Palliative treatment;
  • Patients with scleroderma / systemic lupus erythematosus.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Radiation Oncology Department

Barretos, São Paulo, 14784-400, Brazil

RECRUITING

Related Publications (11)

  • Halsted WS. I. The Results of Operations for the Cure of Cancer of the Breast Performed at the Johns Hopkins Hospital from June, 1889, to January, 1894. Ann Surg. 1894 Nov;20(5):497-555. doi: 10.1097/00000658-189407000-00075. No abstract available.

    PMID: 17860107BACKGROUND
  • Veronesi U, Saccozzi R, Del Vecchio M, Banfi A, Clemente C, De Lena M, Gallus G, Greco M, Luini A, Marubini E, Muscolino G, Rilke F, Salvadori B, Zecchini A, Zucali R. Comparing radical mastectomy with quadrantectomy, axillary dissection, and radiotherapy in patients with small cancers of the breast. N Engl J Med. 1981 Jul 2;305(1):6-11. doi: 10.1056/NEJM198107023050102.

    PMID: 7015141BACKGROUND
  • Song SY, Chang JS, Fan KL, Kim MJ, Chang HP, Lew DH, Roh TS, Roh H, Kim YB, Lee DW. Hypofractionated Radiotherapy With Volumetric Modulated Arc Therapy Decreases Postoperative Complications in Prosthetic Breast Reconstructions: A Clinicopathologic Study. Front Oncol. 2020 Nov 17;10:577136. doi: 10.3389/fonc.2020.577136. eCollection 2020.

    PMID: 33282731BACKGROUND
  • Liu L, Yang Y, Guo Q, Ren B, Peng Q, Zou L, Zhu Y, Tian Y. Comparing hypofractionated to conventional fractionated radiotherapy in postmastectomy breast cancer: a meta-analysis and systematic review. Radiat Oncol. 2020 Jan 17;15(1):17. doi: 10.1186/s13014-020-1463-1.

    PMID: 31952507BACKGROUND
  • SBRT, Brazilian Society of Radiotherapy; Freitas NMA, Rosa AA, Marta GN, Hanna SA, Hanriot RM, Borges ABB, Gondim GRM, Pellizzon ACA, Veras IM, Almeida Junior WJ, Fernandez CRSHW, Batalha Filho ES, Castilho MS, Kuhnen FQ, Najas RMXF, Affonso Junior RJ, Leite ACC, Ribeiro HLM, Freitas Junior R, Oliveira HF. Recommendations for hypofractionated whole-breast irradiation. Rev Assoc Med Bras (1992). 2018 Sep;64(9):770-777. doi: 10.1590/1806-9282.64.09.770.

    PMID: 30672995BACKGROUND
  • Van Poznak C, Somerfield MR, Bast RC, Cristofanilli M, Goetz MP, Gonzalez-Angulo AM, Hicks DG, Hill EG, Liu MC, Lucas W, Mayer IA, Mennel RG, Symmans WF, Hayes DF, Harris LN. Use of Biomarkers to Guide Decisions on Systemic Therapy for Women With Metastatic Breast Cancer: American Society of Clinical Oncology Clinical Practice Guideline. J Clin Oncol. 2015 Aug 20;33(24):2695-704. doi: 10.1200/JCO.2015.61.1459. Epub 2015 Jul 20.

    PMID: 26195705BACKGROUND
  • Nimeus-Malmstrom E, Krogh M, Malmstrom P, Strand C, Fredriksson I, Karlsson P, Nordenskjold B, Stal O, Ostberg G, Peterson C, Ferno M. Gene expression profiling in primary breast cancer distinguishes patients developing local recurrence after breast-conservation surgery, with or without postoperative radiotherapy. Breast Cancer Res. 2008;10(2):R34. doi: 10.1186/bcr1997. Epub 2008 Apr 22.

    PMID: 18430221BACKGROUND
  • Tramm T, Kyndi M, Myhre S, Nord S, Alsner J, Sorensen FB, Sorlie T, Overgaard J. Relationship between the prognostic and predictive value of the intrinsic subtypes and a validated gene profile predictive of loco-regional control and benefit from post-mastectomy radiotherapy in patients with high-risk breast cancer. Acta Oncol. 2014 Oct;53(10):1337-46. doi: 10.3109/0284186X.2014.925580. Epub 2014 Jun 24.

    PMID: 24957550BACKGROUND
  • Kowal J, Arras G, Colombo M, Jouve M, Morath JP, Primdal-Bengtson B, Dingli F, Loew D, Tkach M, Thery C. Proteomic comparison defines novel markers to characterize heterogeneous populations of extracellular vesicle subtypes. Proc Natl Acad Sci U S A. 2016 Feb 23;113(8):E968-77. doi: 10.1073/pnas.1521230113. Epub 2016 Feb 8.

    PMID: 26858453BACKGROUND
  • Yin Z, Yu M, Ma T, Zhang C, Huang S, Karimzadeh MR, Momtazi-Borojeni AA, Chen S. Mechanisms underlying low-clinical responses to PD-1/PD-L1 blocking antibodies in immunotherapy of cancer: a key role of exosomal PD-L1. J Immunother Cancer. 2021 Jan;9(1):e001698. doi: 10.1136/jitc-2020-001698.

    PMID: 33472857BACKGROUND
  • Back M, Guerrieri M, Wratten C, Steigler A. Impact of radiation therapy on acute toxicity in breast conservation therapy for early breast cancer. Clin Oncol (R Coll Radiol). 2004 Feb;16(1):12-6. doi: 10.1016/j.clon.2003.08.005.

    PMID: 14768750BACKGROUND

MeSH Terms

Conditions

Breast Neoplasms

Interventions

Radiation Dose Hypofractionation

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

Dose Fractionation, RadiationRadiotherapy DosageRadiotherapyTherapeutics

Study Officials

  • Marcos D Mattos, MD, MS

    Barretos Cancer Hospital

    PRINCIPAL INVESTIGATOR
  • Gabriela B Salvador, BS

    Barretos Cancer Hospital

    STUDY CHAIR
  • Wanessa F Altei, PhD

    Barretos Cancer Hospital

    STUDY CHAIR
  • Lais L Almeida, MD

    Barretos Cancer Hospital

    STUDY CHAIR

Central Study Contacts

Marcos D Mattos, MD, MS

CONTACT

Alexandre A Jacinto, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Arm Experimental: Post Mastectomy Hypofractionated Radiotherapy Arm No Intervention: Post Mastectomy Conventional Radiotherapy
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 13, 2022

First Posted

August 8, 2022

Study Start

June 27, 2022

Primary Completion

May 1, 2026

Study Completion (Estimated)

May 1, 2029

Last Updated

August 8, 2022

Record last verified: 2022-06

Locations