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PHERGAIN-2 - Chemotherapy-Free pCR-Guided Strategy With Subcutaneous Trastuzumab-pertuzumab and T-DM1 in HER2-positive Early Breast Cancer.

Studio Clinico

Patologia: Neoplasie della mammella

Osservazionale-Sperimentale: Sperimentale

Monocentrico-Multicentrico: Multicentrico

Randomizzato: No

Fase di studio: II

Richiesta mandatoria di tessuto: 

Linee di trattamento: Adiuvante/neoadiuvante

Criteri di inclusione: 

Patient eligibility will be reviewed and documented by a suitable member of the investigator's study team before the patients are enrolled in the study. Patients must meet ALL the following inclusion criteria to be enrolled in the study:

- Written informed consent prior to beginning specific protocol procedures.
- Female or male patients ≥ 18 years of age.
- Eastern Cooperative Oncology Group (ECOG) performance status of 0-1.
- Histologically proven invasive carcinoma of the breast.
- Tumor size between >5 to 25 mm by breast MRI and node-negative status by clinical exam, MRI and ultrasound.
- Centrally confirmed HER2[+] disease (IHC score 3+).
- Known estrogen receptor (ER) and progesterone receptor (PgR) status locally determined prior to study entry.
- Normal left ventricular function and diastolic function (left ventricular ejection fraction [LVEF] ≥55%) as assessed by echocardiogram or multiple-gated acquisition scan (MUGA) documented within ≤28 days prior to first dose of study treatment.
- Adequate bone marrow, liver, and renal function:
    - Hematological: White blood cell (WBC) count > 3.0 x 109/L, absolute neutrophil count (ANC) ≥ 1.5 x 109/L, platelet count ≥ 100.0 x109/L, and hemoglobin ≥ 10.0 g/dL (≥ 6.2 mmol/L). 10)
    - Hepatic: total bilirubin ≤ institutional upper limit of normal (ULN) (except for Gilbert's syndrome); alkaline phosphatase (ALP) ≤ 2.5 times ULN; aspartate transaminase (AST) and alanine transaminase (ALT) ≤ 1.5 times ULN. 11)
    - Renal: serum creatinine ≤ 1.5 x ULN or creatinine clearance ≥ 50 mL/min/1.73 m2 for patients with creatinine levels above institutional normal.
    - International normalized ratio (INR) and activated partial thromboplastin time (aPTT) ≤ 1.5 ×ULN
- Patient must be accessible for treatment and follow-up.
- Willingness and ability to provide blood samples at baseline, after 2 treatment cycles and at surgery.
- Willingness to provide tumor tissue samples at baseline and at surgery.
- All patients must be willing to undergo a pulmonary (X-ray or CT scan), hepatic (ultrasound or CT scan) and bone (PET or CT scan) assessment, to prove no evidence of metastatic disease.
- Women of childbearing potential and men with partners of childbearing potential must be willing to use one highly effective form of nonhormonal contraception or 2 effective forms of nonhormonal contraception by the patient and/or partner and to continue its use for the duration of study treatment and for 7 months after the last dose of study treatment.
Note: Acceptable forms of effective contraception should include 2 of the following:
    - i. Placement of non-hormonal intrauterine device (IUD)
    - ii. Condom with spermicidal foam/gel/film/cream/suppository
    - iii. Diaphragm or cervical/vault caps with spermicidal foam/film/cream/suppository The above contraception methods are not a requirement in the case the male patient, or male partner of a female patient, is surgically sterilized, the female patient is > 45 years of age and is postmenopausal (has not menstruated for at least 12 consecutive months) or the patient remains abstinent and truly abstains from sexual activity (refrains from heterosexual intercourse).
- Negative serum pregnancy test for premenopausal women including women who have had a tubal ligation and for women less than 12 months after the onset of menopause.

Criteri di esclusione: 

Any patient meeting ANY of the following criteria will be excluded from the study:

- Any previous treatment, including chemotherapy, anti-HER2 therapy, radiation therapy, or ET for invasive breast cancer, except for breast carcinoma in situ of the contralateral breast cancer, in the last 5 years.
- HER2 0+, 1+ or 2+ despite in situ hybridization (ISH) positive.
- Node-positive HER2[+] breast cancer.
- Evidence of metastatic disease. Note: CT/MRI scan of thorax/abdomen/pelvis to rule out metastatic disease will be performed before enrolment.
- Known hypersensitivity reaction to any investigational or therapeutic compound or their incorporated substances.
- History of other malignancy within the last five years prior to first dose of study drug administration, except for curatively treated basal and squamous cell carcinoma of the skin and/or in situ cervical carcinoma.
- Uncontrolled hypertension (systolic > 150 mm Hg and/or diastolic > 100 mm Hg) despite adequate antihypertensive treatment.
- Serious cardiac illness or medical conditions including, but not confined to, the following:
    - History of NCI CTCAE v5.0 Grade ≥ 3 symptomatic congestive heart failure (CHF) or New York Heart Association (NYHA) Class ≥ II.
    - High-risk uncontrolled arrhythmias (i.e., atrial tachycardia with a heart rate ≥ 100/min at rest, significant ventricular arrhythmia [ventricular tachycardia], or higher-grade atrioventricular [AV]-block, such as second-degree AV-block Type 2 [Mobitz II] or third-degree AV-block).
    - Serious cardiac arrhythmia or severe conduction abnormality not controlled by adequate medication.
    - Angina pectoris requiring anti-angina medication.
    - Clinically significant valvular heart disease.
    - Evidence of transmural infarction on electrocardiogram (ECG).
    - Evidence of myocardial infarction within 12 months prior to randomization.
- History of ventricular dysrhythmias or risk factors for ventricular dysrhythmias, such as structural heart disease (e.g., severe left ventricular systolic dysfunction [LVSD], left ventricular hypertrophy), coronary heart disease (symptomatic or with ischemia demonstrated by diagnostic testing), clinically significant electrolyte abnormalities (e.g., hypokalaemia, hypomagnesemia, hypocalcaemia), or family history of sudden unexplained death or long QT syndrome.
- Active uncontrolled infection at the time of enrollment.
- Current known infection with HIV, hepatitis B virus, or hepatitis C virus.
- Patients with pulmonary disease requiring continuous oxygen therapy.
- Current NCI CTCAE (version v5.0) Grade 2 ≥ neuropathy.
- Previous history of bleeding diathesis.
- Patient is currently receiving chronic treatment with corticosteroids, or another immunosuppressive agent (standard premedication for chemotherapy and local applications are allowed).
- Major surgical procedure or significant traumatic injury within 14 days prior to randomization or anticipation of need for major surgery within the course of the study treatment.
- LVEF below 55% as determined by multiple-gated acquisition (MUGA) scan or echocardiography (ECHO).
- Any other concurrent severe and/or uncontrolled medical condition that would contraindicate patient participation in the clinical study.
- History of receiving any investigational treatment within 28 days prior to randomization.
- Pregnant or breast-feeding women or patients not willing to apply highly effective contraception as defined in the protocol.

Trattamento sperimentale: 

Trastuzumab and Pertuzumab (FDC SC) and T-DM1

Trattamento di controllo: 


Obiettivi primari dello studio: 

- 3-year recurrence-free interval (3y-RFI) [ Time Frame: 3 years ]
3-year recurrence-free interval (3y-RFI) defined as time from start of treatment in adjuvant setting until recurrence, new invasive disease, or death from breast cancer. Recurrence will be defined in accordance with the standardized efficacy endpoints (STEEP) criteria.
-  Global health status decline [ Time Frame: 1 year ]
Global health status decline rate at 1 year from start of neoadjuvant treatment, defined as the rate of patients with a ≥10% global health status decline at 1 year from start of neoadjuvant treatment as assessed by the Global Health Status
- Global health status decline QoL [ Time Frame: 1 year ]
Global health status decline rate at 1 year from start of neoadjuvant treatment, defined as the rate of patients with a ≥10% global health status decline at 1 year from start of neoadjuvant treatment as assessed by the QoL EORTC-QLC-C30 scale.
- Global health status decline QLQ-BR23 [ Time Frame: 1 year ]
Global health status decline rate at 1 year from start of neoadjuvant treatment, defined as the rate of patients with a ≥10% global health status decline at 1 year from start of neoadjuvant treatment as assessed by the breast cancer module QLQ-BR23.

Centri partecipanti

Nord Italia

Ospedale S.Orsola Malpighi, Università di Bologna
Via Pietro Albertoni 15 - 40138 Bologna - BO
NB: Arruolamento pazienti non ancora attivo


AO Ospedale Civile di Legnano
Via Papa Giovanni Paolo II - 20025 Legnano - MI
NB: Arruolamento pazienti non ancora attivo


Istituto Europeo di Oncologia
Via Ripamonti 435 - 20141 Milano - MI

Riferimento: Dr. Marco Colleoni
Telefono: 0257489970


A.O. San Gerardo
Via Pergolesi 33 - 20900 Monza - MB

Riferimento: Prof.ssa Marina Cazzaniga


Azienda Ospedaliero-Universitaria di Parma
Via Gramsci 14 - 43126 Parma - PR

Riferimento: Prof. Abtonino Musolino


Ospedale di Piacenza
Via Taverna 49 - 29121 Piacenza - PC
Ospedale Guglielmo da Saliceto

Riferimento: Dr. Luigi Cavanna
Telefono: 0523302697


Centro Italia

Fondazione Policlinico A. Gemelli
Largo Agostino Gemelli 8 - 00168 Roma - RM
NB: Arruolamento pazienti non ancora attivo

Riferimento: Dr.ssa Alessandra Fabi


Sud Italia e isole

Istituto Tumori “Giovanni Paolo II” IRCCS
Viale Orazio Flacco 65 - 70124 Bari - BA
NB: Arruolamento pazienti non ancora attivo

Informazioni Generali


Numero di iscrizione a registro: NCT04733118

Data di inserimento: 01.02.2023



Principal Investigator ITALIA

Istiuto Europeo di Oncologia, Milano

Riferimento: Dr. Marco Colleoni

Telefono: 0257489970


Localita: Milano


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