Real wOrld studY in the Adjuvant Setting for High Risk earLy Breast Cancer Patients

The primary goal of this observational study is to describe the distribution of treatment options and patients' characteristics according to the definition of high-risk status in the early breast cancer (EBC) setting. Participants already taking intervention as part of their regular medical care for EBC will answer questionnaires to also assess quality of life and patient reported outcomes. The recruitment phase will last about 2 years, each patient will be followed up for 5 years.

Sex

All

Minimum age

18 Years

Inclusion Criteria:

* Patients will be enrolled in the study if they meet all of the following inclusion criteria:
* Age ≥ 18 years
* Endocrine sensitivity defined as estrogen and or progesterone receptors expression as per local pathological standards
* Her 2 negativity determined as ASCO/CAP guidelines
* Patients receiving abemaciclib, olaparib and endocrine therapy, as per Italian drugs agency rules (AIFA)
* Written informed consent, signed and dated by the patients
* High-risk HR positive, Her2 negative early breast cancer patients with one of the following characteristics:

  * Anatomical stage IIA N0 with:

    * Grade 2 and evidence of high risk:
    * Ki-67 ≥ 20%
    * Oncotype DX Breast Recurrence Score ≥ 26 or High risk via genomic risk profiling
    * Grade 3
  * Anatomical stage IIB.
  * Pathological tumour involvement in ≥4 ipsilateral axillary lymph nodes.
  * Pathological tumour involvement in 1 to 3 ipsilateral axillary lymph node(s) (for patients who received neoadjuvant therapy also cytological tumour involvement at time of initial diagnosis is allowed) and meet at least 1 of the following criteria:

    * Grade 3 as defined by a combined score of at least 8 points per the modified Bloom-Richardson grading system (Elston and Ellis 1991),
    * Pathological primary invasive tumour size ≥5 cm (for patients who received neoadjuvant therapy primary tumour size ≥5 cm on breast imaging is allowed). Note: if tumour size is needed to meet eligibility criteria, patients with multifocal/multicentric tumours may be eligible based on the addition of diameters of the individual lesions.

BRCA mutated populations

Patients must be node positive and fulfil one of the following criteria:

* HR positive, HER2-negative patients must have had ≥4 pathologically confirmed positive lymph nodes
* patients who received prior neoadjuvant chemotherapy: must have had a CPS\&EG score of ≥3 based on pre-treatment clinical and post-treatment pathologic stage (CPS), estrogen receptor (ER) status and histologic grade

Exclusion Criteria:

* Patients unable to understand the reason for their participation in the study, lack of informed written consent,
* patients who do not meet the high risk criteria as specified in the inclusion criteria,
* patients suffering from other neoplasms for which they receive active treatment, or being diagnosed with other neoplasms (except for: Carcinoma in situ (CIS) of the cervix, CIS of the colon, basal cell and squamous cell carcinomas of the skin) in the five years before adjuvant treatment.

• BACKGROUNDPagani O, Regan MM, Walley BA, Fleming GF, Colleoni M, Lang I, Gomez HL, Tondini C, Burstein HJ, Perez EA, Ciruelos E, Stearns V, Bonnefoi HR, Martino S, Geyer CE Jr, Pinotti G, Puglisi F, Crivellari D, Ruhstaller T, Winer EP, Rabaglio-Poretti M, Maibach R, Ruepp B, Giobbie-Hurder A, Price KN, Bernhard J, Luo W, Ribi K, Viale G, Coates AS, Gelber RD, Goldhirsch A, Francis PA; TEXT and SOFT Investigators; International Breast Cancer Study Group. Adjuvant exemestane with ovarian suppression in premenopausal breast cancer. N Engl J Med. 2014 Jul 10;371(2):107-18. doi: 10.1056/NEJMoa1404037. Epub 2014 Jun 1. PMID 24881463
• BACKGROUNDFrancis PA, Pagani O, Fleming GF, Walley BA, Colleoni M, Lang I, Gomez HL, Tondini C, Ciruelos E, Burstein HJ, Bonnefoi HR, Bellet M, Martino S, Geyer CE Jr, Goetz MP, Stearns V, Pinotti G, Puglisi F, Spazzapan S, Climent MA, Pavesi L, Ruhstaller T, Davidson NE, Coleman R, Debled M, Buchholz S, Ingle JN, Winer EP, Maibach R, Rabaglio-Poretti M, Ruepp B, Di Leo A, Coates AS, Gelber RD, Goldhirsch A, Regan MM; SOFT and TEXT Investigators and the International Breast Cancer Study Group. Tailoring Adjuvant Endocrine Therapy for Premenopausal Breast Cancer. N Engl J Med. 2018 Jul 12;379(2):122-137. doi: 10.1056/NEJMoa1803164. Epub 2018 Jun 4. PMID 29863451
• BACKGROUNDPagani O, Walley BA, Fleming GF, Colleoni M, Lang I, Gomez HL, Tondini C, Burstein HJ, Goetz MP, Ciruelos EM, Stearns V, Bonnefoi HR, Martino S, Geyer CE Jr, Chini C, Puglisi F, Spazzapan S, Ruhstaller T, Winer EP, Ruepp B, Loi S, Coates AS, Gelber RD, Goldhirsch A, Regan MM, Francis PA; SOFT and TEXT Investigators and the International Breast Cancer Study Group (a division of ETOP IBCSG Partners Foundation). Adjuvant Exemestane With Ovarian Suppression in Premenopausal Breast Cancer: Long-Term Follow-Up of the Combined TEXT and SOFT Trials. J Clin Oncol. 2023 Mar 1;41(7):1376-1382. doi: 10.1200/JCO.22.01064. Epub 2022 Dec 15. PMID 36521078
• BACKGROUNDRegan MM, Francis PA, Pagani O, Fleming GF, Walley BA, Viale G, Colleoni M, Lang I, Gomez HL, Tondini C, Pinotti G, Price KN, Coates AS, Goldhirsch A, Gelber RD. Absolute Benefit of Adjuvant Endocrine Therapies for Premenopausal Women With Hormone Receptor-Positive, Human Epidermal Growth Factor Receptor 2-Negative Early Breast Cancer: TEXT and SOFT Trials. J Clin Oncol. 2016 Jul 1;34(19):2221-31. doi: 10.1200/JCO.2015.64.3171. Epub 2016 Apr 4.