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The 2016 Assisi Think Tank Meeting on breast cancer: white paper

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Abstract

Purpose

To identify weak points in daily routine use of radiation therapy (RT) for non-metastatic breast cancer patients, particularly when data are lacking or equivocal, a “think tank” of experts met in Assisi.

Methods

Before the meeting, controversial issues on non-metastatic breast cancer were identified and reviewed, and clinical practice investigated by means of an online questionnaire. During the 3-day meeting, topics were discussed in-depth with attendees and potential sponsors that are involved in breast cancer treatment.

Results

Three issues were identified as needing further investigation: (1) Regional lymph node treatment in early-stage breast cancer; (2) Combined post-mastectomy RT and breast reconstruction; (3) RT in patients treated with primary systemic therapy. Future research proposals included the following: (1) Participating in appropriately selected on-going clinical trials; (2) Designing new randomized controlled clinical trials and prospective population cohort studies; (3) Setting-up large database(s) to generate predictive response models and detect biomarkers for tailored loco-regional treatments.

Conclusions

It is hoped that the ATTM findings, as described in the present white paper, will stimulate a new generation of radiation oncologists to focus on research in these areas, and that the white paper will become a tool for multidisciplinary groups to help them design research proposals and strategies.

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Abbreviations

ATTM:

Assisi Think Tank Meeting

ESTRO:

European Society for RadioTherapy & Oncology

RT:

Radiation therapy

PMRT:

Post-mastectomy radiation therapy

PST:

Primary systemic therapy

ALND:

Axillary lymph node dissection

IBCSG:

International Breast Cancer Study Group

SLN:

Sentinel lymph node

ACOSOG:

American College of Surgeons Oncology Group

EORTC:

European Organisation for Research and Treatment of Cancer

DBCG-IMN:

Danish breast cancer cooperative group—internal mammary nodes

EBCTCG:

Early Breast Cancer Trialists’ Collaborative Group

IMRT:

Intensity-modulated radiation therapy

pCR:

Pathological complete response

CTNeoBC:

Collaborative Trials in Neoadjuvant Breast Cancer

HER2:

Human Epidermal Growth Factor Receptor 2

FNR:

False-negative rate

SENTINA:

Sentinel-Lymph-Node Biopsy in Patients with Breast Cancer Before and After Neoadjuvant Chemotherapy

MARI:

Marking axillary’s lymph node with radioactive iodine seed

NSABP:

National Surgical Adjuvant Breast Project

NCDB:

National Cancer Database

ER:

Estrogen receptor

PR:

Progesterone receptor

AI:

Aromatase inhibitors

FNA:

Fine-needle aspiration

CNB:

Core needle biopsy

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Acknowledgments

The authors thank all the other ATTM Expert European Board members: Bruno Cutuli, Pierfrancesco Franco, Domenico Genovesi, Vladislav Grinberg, Diclehan Kilic, Vassilis Kouloulias, Lorenzo Livi, Stefano Maria Magrini, Fabio Marazzi, Icro Meattini, Angel Montero Luis, Isabella Palumbo, Elisabetta Perrucci, Luigi Pirtoli, Ugur Selek, Daniela Smaniotto, Fabrizio Stracci, Vincenzo Tombolini, Lurdes Trigo, Cristiana Vidali.

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Correspondence to Cynthia Aristei.

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The authors declare that they have no conflict of interest. Dr. Charlotte Coles is supported by the Cambridge National Institute of Health Research Biomedical Research Centre.

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This article does not contain any studies with human participants or animals performed by any of the authors.

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Aristei, C., Kaidar-Person, O., Arenas, M. et al. The 2016 Assisi Think Tank Meeting on breast cancer: white paper. Breast Cancer Res Treat 160, 211–221 (2016). https://doi.org/10.1007/s10549-016-3998-2

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