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    Summary
    EudraCT Number:2021-002491-39
    Sponsor's Protocol Code Number:SGNTUC-028
    National Competent Authority:Italy - Italian Medicines Agency
    Clinical Trial Type:EEA CTA
    Trial Status:Ongoing
    Date on which this record was first entered in the EudraCT database:2022-02-02
    Trial results
    Index
    A. PROTOCOL INFORMATION
    B. SPONSOR INFORMATION
    C. APPLICANT IDENTIFICATION
    D. IMP IDENTIFICATION
    D.8 INFORMATION ON PLACEBO
    E. GENERAL INFORMATION ON THE TRIAL
    F. POPULATION OF TRIAL SUBJECTS
    G. INVESTIGATOR NETWORKS TO BE INVOLVED IN THE TRIAL
    N. REVIEW BY THE COMPETENT AUTHORITY OR ETHICS COMMITTEE IN THE COUNTRY CONCERNED
    P. END OF TRIAL
    Expand All   Collapse All
    A. Protocol Information
    A.1Member State ConcernedItaly - Italian Medicines Agency
    A.2EudraCT number2021-002491-39
    A.3Full title of the trial
    A randomized, double-blind, phase 3 study of tucatinib or placebo in combination with trastuzumab and pertuzumab as maintenance therapy for metastatic HER2+ breast cancer (HER2CLIMB-05).
    Studio randomizzato, in doppio cieco, di fase 3, su tucatinib o placebo in combinazione con trastuzumab e pertuzumab come terapia di mantenimento per carcinoma mammario metastatico HER2+ (HER2CLIMB-05).
    A.3.1Title of the trial for lay people, in easily understood, i.e. non-technical, language
    A study of tucatinib versus placebo in combination with pertuzumab and trastuzumab for subjects with advanced or metastatic HER2+ breast cancer.
    Studio su tucatinib rispetto al placebo, in combinazione con pertuzumab e trastuzumab in soggetti con tumore mammario avanzato o metasttico.
    A.3.2Name or abbreviated title of the trial where available
    HER2CLIMB-05
    HER2CLIMB-05
    A.4.1Sponsor's protocol code numberSGNTUC-028
    A.7Trial is part of a Paediatric Investigation Plan No
    A.8EMA Decision number of Paediatric Investigation Plan
    B. Sponsor Information
    B.Sponsor: 1
    B.1.1Name of SponsorSEAGEN INC.
    B.1.3.4CountryUnited States
    B.3.1 and B.3.2Status of the sponsorCommercial
    B.4 Source(s) of Monetary or Material Support for the clinical trial:
    B.4.1Name of organisation providing supportSeagen Inc.
    B.4.2CountryUnited States
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisationSeagen Inc.
    B.5.2Functional name of contact pointSeagen Clinical Trial Information
    B.5.3 Address:
    B.5.3.1Street Address21621- 30th Drive SE, Building 4
    B.5.3.2Town/ cityBothell
    B.5.3.3Post codeWA 98021
    B.5.3.4CountryUnited States
    B.5.4Telephone number0018663337436
    B.5.6E-mailclinicaltrials@seagen.com
    D. IMP Identification
    D.IMP: 1
    D.1.2 and D.1.3IMP RoleTest
    D.2 Status of the IMP to be used in the clinical trial
    D.2.1IMP to be used in the trial has a marketing authorisation Yes
    D.2.1.1.1Trade name PHESGO
    D.2.1.2Country which granted the Marketing AuthorisationEuropean Union
    D.2.5The IMP has been designated in this indication as an orphan drug in the Community No
    D.2.5.1Orphan drug designation number
    D.3 Description of the IMP
    D.3.1Product namePHESGO
    D.3.2Product code [NA]
    D.3.4Pharmaceutical form Solution for injection
    D.3.4.1Specific paediatric formulation No
    D.3.7Routes of administration for this IMPIntravenous use
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNTRASTUZUMAB
    D.3.9.1CAS number 180288-69-1
    D.3.9.2Current sponsor codeNA
    D.3.9.4EV Substance CodeSUB12612MIG
    D.3.10 Strength
    D.3.10.1Concentration unit mg/ml milligram(s)/millilitre
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number60
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNPERTUZUMAB
    D.3.9.1CAS number 380610-27-5
    D.3.9.2Current sponsor codeNA
    D.3.9.4EV Substance CodeSUB16455MIG
    D.3.10 Strength
    D.3.10.1Concentration unit mg/ml milligram(s)/millilitre
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number60
    D.3.11 The IMP contains an:
    D.3.11.1Active substance of chemical origin No
    D.3.11.2Active substance of biological/ biotechnological origin (other than Advanced Therapy IMP (ATIMP) Yes
    The IMP is a:
    D.3.11.3Advanced Therapy IMP (ATIMP) No
    D.3.11.3.1Somatic cell therapy medicinal product Information not present in EudraCT
    D.3.11.3.2Gene therapy medical product Information not present in EudraCT
    D.3.11.3.3Tissue Engineered Product Information not present in EudraCT
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) Information not present in EudraCT
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product Information not present in EudraCT
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy No
    D.3.11.5Radiopharmaceutical medicinal product No
    D.3.11.6Immunological medicinal product (such as vaccine, allergen, immune serum) No
    D.3.11.7Plasma derived medicinal product No
    D.3.11.8Extractive medicinal product No
    D.3.11.9Recombinant medicinal product Yes
    D.3.11.10Medicinal product containing genetically modified organisms No
    D.3.11.11Herbal medicinal product No
    D.3.11.12Homeopathic medicinal product No
    D.3.11.13Another type of medicinal product No
    D.IMP: 2
    D.1.2 and D.1.3IMP RoleTest
    D.2 Status of the IMP to be used in the clinical trial
    D.2.1IMP to be used in the trial has a marketing authorisation Yes
    D.2.1.1.1Trade name TUKYSA
    D.2.1.1.2Name of the Marketing Authorisation holderSeagen B.V.
    D.2.1.2Country which granted the Marketing AuthorisationEuropean Union
    D.2.5The IMP has been designated in this indication as an orphan drug in the Community No
    D.2.5.1Orphan drug designation number
    D.3 Description of the IMP
    D.3.1Product nameTucatinib
    D.3.2Product code [ONT-380]
    D.3.4Pharmaceutical form Film-coated tablet
    D.3.4.1Specific paediatric formulation No
    D.3.7Routes of administration for this IMPOral use
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNTucatinib
    D.3.9.1CAS number 1429755-56-5
    D.3.9.2Current sponsor codeNA
    D.3.9.4EV Substance CodeSUB177913
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number150
    D.3.11 The IMP contains an:
    D.3.11.1Active substance of chemical origin Yes
    D.3.11.2Active substance of biological/ biotechnological origin (other than Advanced Therapy IMP (ATIMP) No
    The IMP is a:
    D.3.11.3Advanced Therapy IMP (ATIMP) No
    D.3.11.3.1Somatic cell therapy medicinal product Information not present in EudraCT
    D.3.11.3.2Gene therapy medical product Information not present in EudraCT
    D.3.11.3.3Tissue Engineered Product Information not present in EudraCT
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) Information not present in EudraCT
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product Information not present in EudraCT
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy No
    D.3.11.5Radiopharmaceutical medicinal product No
    D.3.11.6Immunological medicinal product (such as vaccine, allergen, immune serum) No
    D.3.11.7Plasma derived medicinal product No
    D.3.11.8Extractive medicinal product No
    D.3.11.9Recombinant medicinal product No
    D.3.11.10Medicinal product containing genetically modified organisms No
    D.3.11.11Herbal medicinal product No
    D.3.11.12Homeopathic medicinal product No
    D.3.11.13Another type of medicinal product No
    D.IMP: 3
    D.1.2 and D.1.3IMP RoleTest
    D.2 Status of the IMP to be used in the clinical trial
    D.2.1IMP to be used in the trial has a marketing authorisation Yes
    D.2.1.1.1Trade name TUKYSA
    D.2.1.1.2Name of the Marketing Authorisation holderSeagen B.V.
    D.2.1.2Country which granted the Marketing AuthorisationEuropean Union
    D.2.5The IMP has been designated in this indication as an orphan drug in the Community No
    D.2.5.1Orphan drug designation number
    D.3 Description of the IMP
    D.3.1Product nameTucatinib
    D.3.2Product code [ONT-380]
    D.3.4Pharmaceutical form Film-coated tablet
    D.3.4.1Specific paediatric formulation No
    D.3.7Routes of administration for this IMPOral use
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNTucatinib
    D.3.9.1CAS number 1429755-56-5
    D.3.9.2Current sponsor codeNA
    D.3.9.4EV Substance CodeSUB177913
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number50
    D.3.11 The IMP contains an:
    D.3.11.1Active substance of chemical origin Yes
    D.3.11.2Active substance of biological/ biotechnological origin (other than Advanced Therapy IMP (ATIMP) No
    The IMP is a:
    D.3.11.3Advanced Therapy IMP (ATIMP) No
    D.3.11.3.1Somatic cell therapy medicinal product Information not present in EudraCT
    D.3.11.3.2Gene therapy medical product Information not present in EudraCT
    D.3.11.3.3Tissue Engineered Product Information not present in EudraCT
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) Information not present in EudraCT
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product Information not present in EudraCT
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy No
    D.3.11.5Radiopharmaceutical medicinal product No
    D.3.11.6Immunological medicinal product (such as vaccine, allergen, immune serum) No
    D.3.11.7Plasma derived medicinal product No
    D.3.11.8Extractive medicinal product No
    D.3.11.9Recombinant medicinal product No
    D.3.11.10Medicinal product containing genetically modified organisms No
    D.3.11.11Herbal medicinal product No
    D.3.11.12Homeopathic medicinal product No
    D.3.11.13Another type of medicinal product No
    D.8 Information on Placebo
    D.8 Placebo: 1
    D.8.1Is a Placebo used in this Trial?Yes
    D.8.3Pharmaceutical form of the placeboFilm-coated tablet
    D.8.4Route of administration of the placeboOral use
    E. General Information on the Trial
    E.1 Medical condition or disease under investigation
    E.1.1Medical condition(s) being investigated
    Unresectable locally-advanced or metastatic HER2+ breast cancer.
    Carcinoma mammario HER2+ localmente avanzato o metastatico non resecabile.
    E.1.1.1Medical condition in easily understood language
    Advanced or metastatic breast cancer.
    Tumore mammario avanzato o metastatico.
    E.1.1.2Therapeutic area Diseases [C] - Cancer [C04]
    MedDRA Classification
    E.1.2 Medical condition or disease under investigation
    E.1.2Version 23.0
    E.1.2Level PT
    E.1.2Classification code 10065430
    E.1.2Term HER2 positive breast cancer
    E.1.2System Organ Class 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    E.1.2 Medical condition or disease under investigation
    E.1.2Version 21.1
    E.1.2Level LLT
    E.1.2Classification code 10072740
    E.1.2Term Locally advanced breast cancer
    E.1.2System Organ Class 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    E.1.2 Medical condition or disease under investigation
    E.1.2Version 20.0
    E.1.2Level LLT
    E.1.2Classification code 10027475
    E.1.2Term Metastatic breast cancer
    E.1.2System Organ Class 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    E.1.3Condition being studied is a rare disease No
    E.2 Objective of the trial
    E.2.1Main objective of the trial
    Compare progression-free survival (PFS) by investigator per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 between treatment arms.
    Confrontare la sopravvivenza libera da progressione (Progression Free Survival, PFS) tra bracci di trattamento, valutata dallo sperimentatore secondo i Criteri di valutazione della risposta nei tumori solidi (RECIST), v. 1.1.
    E.2.2Secondary objectives of the trial
    - Compare overall survival (OS) between treatment arms;
    - Evaluate PFS by blinded independent central review (BICR) per RECIST v1.1;
    - Assess the change in health-related quality of life (HRQoL);
    - Evaluate PFS in the brain;
    - Evaluate the safety and tolerability of tucatinib in combination with trastuzumab and pertuzumab;
    - Evaluate the pharmacokinetics (PK) of tucatinib.
    - Confrontare la sopravvivenza globale (Overall Survival, OS) tra i bracci di trattamento;
    - Valutare la PFS mediante revisione centralizzata indipendente in cieco (Blinded Independent Central Review, BICR) secondo i criteri RECIST, v. 1.1;
    - Valutare i cambiamenti nella qualità della vita correlata alla salute (HRQoL);
    - Valutare la PFS nel cervello;
    - Valutare la sicurezza e la tollerabilità di tucatinib in combinazione con trastuzumab e pertuzumab;
    - Valutare la farmacocinetica (PK) di tucatinib
    E.2.3Trial contains a sub-study No
    E.3Principal inclusion criteria
    1. Have centrally confirmed HER2+ breast carcinoma per 2018 American Society of Clinical Oncologists (ASCO)-College of American Pathologists
    (CAP) guidelines.
    2. Have unresectable locally advanced or metastatic (hereafter referred to as "advanced") disease; if recurrent (after [neo]adjuvant therapy),
    there must be a minimum 6-month treatment-free interval from any rastuzumab or pertuzumab received in the early breast cancer setting to
    the diagnosis of advanced HER2+ disease. Prior standard of care therapy for early breast cancer is permitted (eg, prior T-DM1); however,
    Exclusion Criterion 1 should be noted.
    3. Have received 4-8 cycles (21-day cycles) of previous treatment with trastuzumab, pertuzumab, and taxane as first-line therapy for advanced
    HER2+ breast cancer with no evidence of disease progression (per investigator judgement).
    a. Subjects receiving <6 cycles (ie, 4-5 cycles) of taxane are only eligible if the taxane was stopped early due to intolerable toxicity (eg,
    documented neuropathy impacting function).
    b. Subjects are permitted to receive trastuzumab and pertuzumab for 1 additional cycle (after completion of chemotherapy) during screening to
    allow completion of screening procedures. Study treatment should begin within 6 weeks (± 3 days) from the start of the last cycle of trastuzumab
    and pertuzumab.
    c. Subjects newly found to have asymptomatic brain metastasis during screening and treated with local CNS-directed therapy are permitted to
    receive trastuzumab and pertuzumab for up to 2 additional cycles (after completion of chemotherapy) to allow for the mandatory washout
    period. Study treatment should begin within 9 weeks (± 3 days) from the start of the last cycle of trastuzumab and pertuzumab.
    4. Known hormone receptor status (per local guidelines; may be hormone receptor positive [HR+] or negative [HR-])
    5. Be at least 18 years of age, and legally an adult at time of consent and >or= the age of majority per regional requirements.
    6. Have Eastern Cooperative Oncology Group Performance Status (ECOG PS) of 0 or 1.
    7. Have adequate hepatic function as defined in the protocol.
    8. Have adequate baseline hematologic parameters as defined in the protocol.
    9. Have a serum or plasma creatinine <or=1.5 X institutional ULN.
    10. Have left ventricular ejection fraction (LVEF) >or=50% as assessed by echocardiogram (ECHO) or multiple-gated acquisition scan (MUGA)
    documented within 4 weeks prior to first dose of study treatment.
    11. Subjects of childbearing potential must meet the conditions as per protocol.
    12. Male subjects must meet the conditions as per protocol.
    13. Provide signed informed consent per a consent document that has been approved by an institutional review board or independent ethics
    committee (IRB/IEC) prior to initiation of any study-related tests or procedures that are not part of standard-of-care for the subject's disease
    14. Be willing and able to comply with study procedures.
    15. CNS Inclusion – Based on screening contrast brain magnetic resonance imaging (MRI), subjects may have any of the following:
    a. No evidence of brain metastases.
    b. Untreated brain metastases which are asymptomatic and, if identified on prior brain imaging, without evidence of progression since starting
    first-line induction therapy with trastuzumab, pertuzumab, and taxane
    c. Previously treated brain metastases which are asymptomatic.
    i. Brain metastases previously treated with local therapy must not have progressed since treatment.
    a. Time since whole brain radiation therapy (WBRT) is >or= 14 days prior to first dose of study treatment, time since stereotactic radiosurgery (SRS).
    is >or=7 days prior to first dose of study treatment, or time since surgical resection is >or=28 days prior to first dose of study treatment.
    ii. Relevant records of any CNS treatment must be available to allow for classification of target and non-target lesions.
    1. Presenza di carcinoma mammario HER2+ confermato a livello centralizzato secondo le linee guida dell'ASCO e del CAP, del 2018.
    2. Presenza di malattia non resecabile localmente avanzata o metastatica (da qui in poi indicata come “in stadio avanzato”); se ricorrente (dopo la terapia adiuvante/neoadiuvante), deve esserci un intervallo libero da trattamento di almeno 6 mesi da trastuzumab o pertuzumab ricevuto nel contesto del carcinoma mammario in stadio iniziale fino alla diagnosi di malattia HER2+ in stadio avanzato. È consentita una precedente terapia standard per il carcinoma mammario in stadio iniziale (per es., precedente terapia con ado-trastuzumab emtansina, T-DM1); tuttavia, deve essere osservato il criterio di esclusione 1.
    3. Aver ricevuto 4 - 8 cicli (cicli di 21 giorni) di trattamento precedente con trastuzumab, pertuzumab e taxano come terapia di prima linea per il carcinoma mammario HER2+ in stadio avanzato senza evidenza di progressione della malattia (secondo il giudizio dello sperimentatore)
    a. I soggetti che ricevono < 6 cicli (ovvero, 4-5 cicli) di taxano sono idonei solo se il taxano è stato interrotto in anticipo a causa di tossicità intollerabile (per es., neuropatia documentata che influisce sulla funzionalità).
    b. Ai soggetti è permesso ricevere trastuzumab e pertuzumab per 1 ciclo aggiuntivo (dopo il completamento della chemioterapia) durante lo screening al fine di permettere il completamento delle procedure di screening. Il trattamento dello studio deve iniziare entro 6 settimane (+o- 3 giorni) dall’inizio dell’ultimo ciclo di trastuzumab e pertuzumab.
    c. Ai soggetti in cui sono state recentemente riscontrate delle metastasi cerebrali asintomatiche durante lo screening e che sono stati trattati con terapia locale diretta al SNC è permesso ricevere trastuzumab e pertuzumab per un massimo di 2 cicli aggiuntivi (dopo il completamento della chemioterapia) per permettere il periodo di washout obbligatorio . Il trattamento dello studio deve iniziare entro 6 settimane (+o- 3 giorni) dall’inizio dell’ultimo ciclo di trastuzumab e pertuzumab.
    4. Stato noto del recettore ormonale (secondo le linee guida locali; HR+ o HR-);
    5. Avere almeno 18 anni di età ed essere legalmente un adulto al momento del consenso e avere un’età >o= alla maggiore età in base ai requisiti locali
    6. Presentare un Performance Status secondo l’ECOG pari a 0 o 1.
    7. Presentare adeguata funzionalità epatica come definito nel protocollo.
    8. Presentare parametri ematologici adeguati al basale come definito nel protocollo.
    9. Presentare creatinina sierica o plasmatica <o= 1,5 volte l’ULN istituzionale.
    10. Presentare frazione di eiezione ventricolare sinistra >o= 50%, come da valutazione mediante ecocardiogramma o scansione con acquisizione a gate multipli documentata nelle 4 settimane precedenti la prima dose di trattamento dello studio.
    11. I soggetti in età fertile devono soddisfare le condizioni previste dal protocollo.
    12. I soggetti di sesso maschile devono soddisfare le condizioni previste dal protocollo.
    13. Fornire il consenso informato firmato secondo un documento di consenso che è stato approvato da un IRB/CEI prima dell’inizio di qualsiasi esame o procedura correlati allo studio che non faccia parte dello standard di cura per la malattia del soggetto.
    14. Essere disposti e in grado di rispettare le procedure dello studio.
    15. Criterio di inclusione relativo al SNC: in base alla RMI cerebrale con mezzo di contrasto allo screening, i soggetti possono presentare una qualsiasi delle seguenti condizioni:
    a. nessuna evidenza di metastasi cerebrali
    b. metastasi cerebrali non trattate asintomatiche e, se identificate in un precedente esame di diagnostica per immagini cerebrale, senza evidenza di progressione dall’inizio della terapia di induzione di prima linea con trastuzumab, pertuzumab e taxano
    ------------
    [Per ulteriori dettagli vedere la sinossi del protocollo in itlaiano]
    E.4Principal exclusion criteria
    1. Have previously been treated with any anti-HER2 and/or antiepidermal growth factor receptor (EGFR) tyrosine kinase inhibitor
    including pyrotinib, lapatinib, tucatinib, neratinib, and afatinib (except neratinib if given in extended adjuvant setting and at least 12 months
    have elapsed from the last neratinib dose to the start of study drug) or are currently participating in another interventional clinical trial.
    2. Unable for any reason to undergo contrast MRI of the brain.
    3. History of allergic reactions to trastuzumab, pertuzumab, or compounds chemically or biologically similar to tucatinib, except for Grade 1 or 2 infusion-related reactions (IRRs) to trastuzumab that were successfully managed, known allergy to one of the excipients in the study drugs, or hypersensitivity to murine proteins.
    4. Are positive for Hepatitis B by surface antigen expression, positive for Hepatitis C infection, or the presence of known chronic liver disease.
    Subjects who have been treated for Hepatitis C infection are permitted if they have documented sustained virologic response of at least 12 weeks.
    The latest local guidelines should be followed regarding the testing of Hepatitis B DNA levels by polymerase chain reaction (PCR). Subjects with Hepatitis B DNA levels by PCR that require nucleoside analogue or other therapies are not eligible for the trial.
    5. Subjects known to be positive for human immunodeficiency virus (HIV) are excluded if they meet any of the following criteria:
    a. CD4+ T-cell count of <350 cells/µL,
    b. Detectable HIV viral load,
    c. History of an opportunistic infection within the past 12 months,
    d. On stable antiretroviral therapy for <4 weeks,
    6. Are pregnant, breastfeeding, or planning a pregnancy from time of informed consent until 7 months after the final dose of study drug
    7. Have inability to swallow pills or have significant GI disease or surgery which would preclude the adequate oral absorption of medications.
    8. Have used a strong CYP2C8 inhibitor within 5 half-lives of the inhibitor, or have used a strong CYP3A4 or CYP2C8 inducer within 5 days
    prior to first dose of study treatment.
    9. Have current conditions of symptomatic congestive heart failure, unstable angina pectoris, uncontrolled hypertension, or cardiac
    arrhythmia or history of myocardial infarction within 6 months prior to randomization.
    10. Have any other medical, social, or psychosocial factors that, in the opinion of the investigator, could impact safety or compliance with study
    procedures.
    11. Have evidence within 2 years of the start of study treatment of another malignancy that required systemic treatment.
    12. Have ongoing >o= Grade 2 toxicity from first-line induction therapy (ie, trastuzumab, pertuzumab, and taxane) with the exceptions of alopecia,
    neuropathy, and nail toxicity.
    13. Have ongoing >o= Grade 2 diarrhea.
    14. CNS Exclusion – Based on screening brain MRI and clinical assessment, subjects must not have any of the following:
    a. Symptomatic brain metastasis,
    b. Progression of brain metastases since starting first-line trastuzumab, pertuzumab, and taxane,
    c. Ongoing use of systemic corticosteroids at a total daily dose of >2 mg of dexamethasone (or equivalent). For subjects requiring systemic
    steroids for control of comorbidities (eg, asthma or autoimmune diseases), daily dose must not exceed 2 mg dexamethasone (or equivalent).
    d. Any untreated brain lesion in an anatomic site which may pose risk to subject (eg, brain stem lesions). Subjects who successfully undergo local
    treatment for such lesions may be permitted to rescreen, if otherwise eligible, after discussion with, and approval by, the medical monitor.
    e. Known or suspected leptomeningeal disease (LMD) as documented by the investigator.
    f. Poorly controlled (>1/week) seizures, or other persistent neurologic symptoms despite CNS-directed therapy for brain metastasis.
    1. Precedente trattamento con qualsiasi inibitore della tirosin-chinasi anti-HER2 e/o anti-recettore del fattore di crescita epidermico (Epidermal Growth Factor Receptor, EGFR), tra cui pyrotinib, lapatinib, tucatinib, neratinib e afatinib (fatta eccezione per neratinib se somministrato nel contesto adiuvante esteso e se sono trascorsi almeno 12 mesi dall’ultima dose di neratinib all’inizio del farmaco dello studio) o attuale partecipazione a un’altra sperimentazione clinica interventistica.
    2. Incapacità, per qualsiasi motivo, di sottoporsi a RMI cerebrale con mezzo di contrasto.
    3. Anamnesi di reazioni allergiche a trastuzumab, pertuzumab o composti chimicamente o biologicamente simili a tucatinib, fatta eccezione per le reazioni di grado 1 o 2 correlate all’infusione di trastuzumab o pertuzumab che sono state gestite con successo, allergia nota a uno degli eccipienti nei farmaci dello studio o ipersensibilità alle proteine murine.
    4. Positività all’epatite B determinata dall’espressione dell’antigene di superficie, positività all’infezione da epatite C o presenza di malattia epatica cronica nota. I soggetti che sono stati trattati per l’infezione da epatite C sono ammessi se presentano una risposta virologica sostenuta documentata di almeno 12 settimane. È necessario seguire le linee guida locali più recenti relative all’analisi dei livelli di DNA di HBV mediante reazione a catena della polimerasi (Polymerase Chain Reaction, PCR). I soggetti con livelli di DNA di HBV determinati mediante PCR che richiedono trattamento con un analogo nucleosidico o altre terapie non sono idonei alla sperimentazione
    5. In presenza di positività al virus dell’immunodeficienza umana (Human Immunodeficiency Virus, HIV), i soggetti sono esclusi se soddisfano uno qualsiasi dei seguenti criteri:
    a. conta dei linfociti T CD4+ < 350 cellule/µl
    b. carica virale di HIV rilevabile
    c. anamnesi di infezione opportunistica negli ultimi 12 mesi
    d. terapia antiretrovirale stabile in corso da < 4 settimane.
    6. In gravidanza, in fase di allattamento o in fase di programmazione di una gravidanza, dal momento del consenso informato fino a 7 mesi dopo la dose finale del farmaco dello studio.
    7. Incapacità di deglutire pillole o presenza di malattia gastrointestinale significativa o intervento chirurgico che precluderebbe l’assorbimento orale adeguato dei farmaci.
    8. Utilizzo di un forte inibitore del CYP2C8 entro 5 emivite dell’inibitore o utilizzo di un forte induttore del CYP3A4 o del CYP2C8 nei 5 giorni precedenti la prima dose del trattamento dello studio.
    9. Presenza di attuali patologie di insufficienza cardiaca congestizia sintomatica, angina pectoris instabile, ipertensione non controllata o aritmia cardiaca o anamnesi di infarto miocardico nei 6 mesi precedenti la randomizzazione.
    10. Presenza di qualsiasi altro fattore medico, sociale o psicosociale che, a giudizio dello sperimentatore, potrebbe influire sulla sicurezza o sull’aderenza alle procedure dello studio.
    11. Evidenza di un’altra neoplasia maligna che ha richiesto un trattamento sistemico, entro 2 anni dall’inizio del trattamento dello studio
    12. Tossicità di grado >o= 2 in corso, derivante dalla terapia di induzione di prima linea (ovvero, trastuzumab, pertuzumab e taxano) con l’eccezione di alopecia, neuropatia e tossicità ungueale.
    13. Diarrea di grado >o= 2 in corso.
    14. Criteri di esclusione relativi al SNC: in base alla RMI cerebrale allo screening e alla valutazione clinica, i soggetti non devono presentare alcuna delle seguenti condizioni:
    a. metastasi cerebrali sintomatiche
    b. progressione delle metastasi cerebrali dall’inizio della terapia di prima linea con trastuzumab, pertuzumab e taxano;
    ------------
    [Per ulteriori dettagli vedere la sinossi del protocollo in itlaiano]
    E.5 End points
    E.5.1Primary end point(s)
    PFS per RECIST v1.1 according to investigator assessment, or death from any cause, whichever occurs first.
    PFS valutata dallo sperimentatore secondo i criteri RECIST, v. 1.1 , oppure il decesso per qualsiasi causa, a seconda di quale evento si verifichi prima.
    E.5.1.1Timepoint(s) of evaluation of this end point
    Once approximately 331 PFS events per investigator assessment have been observed.
    Quando si siano osservati approssimativamente 331 PFS, in base al giudizio dello sperimentatore.
    E.5.2Secondary end point(s)
    - OS.
    - PFS per RECIST v1.1, as determined by BICR, or death from any cause, whichever occurs first.
    - Time to deterioration of HRQoL.
    - CNS-PFS per RECIST v1.1 according to investigator assessment, or death from any cause, whichever occurs first.
    - AEs, clinical laboratory assessments, incidence of dose holding and discontinuation of study treatment, incidence of dose reductions of
    tucatinib.
    - Plasma concentrations of tucatinib.
    - OS.
    - PFS valutata dal BCIR secondo i criteri RECIST, v. 1.1 , oppure il decesso per qualsiasi causa, a seconda di quale evento si verifichi prima.
    - Tempo al peggioramento della HRQoL.
    - PFS nel sistema nervoso centrale (SNC) valutata dallo sperimentatore (secondo i criteri RECIST, v. 1.1), oppure il decesso per qualsiasi causa, a seconda di quale evento si verifichi prima.
    - Eventi avversi (EA), valutazioni cliniche di laboratorio, incidenza di sospensione della dose e interruzione del trattamento dello studio, incidenza della riduzione della dose di tucatinib.
    - Concentrazioni plasmatiche di tucatinib.
    E.5.2.1Timepoint(s) of evaluation of this end point
    - OS: final analysis will occur when approximately 252 OS events are observed.
    - PFS by BICR: once approx. 331 PFS events have occurred.
    - HRQoL: to be assessed on Day 1 of each 21-day cycle, at the end of treatment visit, and first follow-up visit.
    - CNS-PFS: once approx. 331 PFS events have occurred.
    - Safety assessments will be collected throughout the study. The safety reporting period for all AEs and SAEs is from study Cycle 1 Day 1
    (predose) through 30 days after the last study treatment.
    - samples for PK assessment of tucatinib drug levels will be collected on Day 1 of Cycles 2 to 6.
    OS: l'analisi finale avrà luogo quando si saranno osservati circa 252 eventi di OS.
    - PFS per BICR: una volta che si saranno verificati circa 331 eventi di PFS.
    - HRQoL: da valutarsi al giorno 1 di ogni ciclo di 21 giorni, alla visita di fine trattamento, e alla prima visita di FUP.
    - CNS-PFS: una volta che si saranno verificati circa 331 eventi di PFS.
    - Le valutazioni di sicurezza saranno raccolte durante il corso dello studio. Il periodo delle segnalazioni di sicurezza per tutti gli EA e gli EAS va dal giorno 1 del ciclo 1 (predose) fino a 30 giorni dopo ll'ultimo trattamento dello studio.
    - I campioni per la valutazione della PK dei livelli del farmaco tucatinib saranno raccolti al giorno 1 dei cicli da 2 a 6.
    E.6 and E.7 Scope of the trial
    E.6Scope of the trial
    E.6.1Diagnosis No
    E.6.2Prophylaxis No
    E.6.3Therapy Yes
    E.6.4Safety Yes
    E.6.5Efficacy Yes
    E.6.6Pharmacokinetic Yes
    E.6.7Pharmacodynamic No
    E.6.8Bioequivalence No
    E.6.9Dose response No
    E.6.10Pharmacogenetic No
    E.6.11Pharmacogenomic No
    E.6.12Pharmacoeconomic No
    E.6.13Others Yes
    E.6.13.1Other scope of the trial description
    Patient Reported Outcomes, biomarkers.
    Esiti riferiti dal paziente, biomarker.
    E.7Trial type and phase
    E.7.1Human pharmacology (Phase I) No
    E.7.1.1First administration to humans No
    E.7.1.2Bioequivalence study No
    E.7.1.3Other No
    E.7.1.3.1Other trial type description
    E.7.2Therapeutic exploratory (Phase II) No
    E.7.3Therapeutic confirmatory (Phase III) Yes
    E.7.4Therapeutic use (Phase IV) No
    E.8 Design of the trial
    E.8.1Controlled Yes
    E.8.1.1Randomised Yes
    E.8.1.2Open No
    E.8.1.3Single blind No
    E.8.1.4Double blind Yes
    E.8.1.5Parallel group No
    E.8.1.6Cross over No
    E.8.1.7Other No
    E.8.2 Comparator of controlled trial
    E.8.2.1Other medicinal product(s) No
    E.8.2.2Placebo Yes
    E.8.2.3Other No
    E.8.2.4Number of treatment arms in the trial2
    E.8.3 The trial involves single site in the Member State concerned No
    E.8.4 The trial involves multiple sites in the Member State concerned Yes
    E.8.4.1Number of sites anticipated in Member State concerned14
    E.8.5The trial involves multiple Member States Yes
    E.8.5.1Number of sites anticipated in the EEA90
    E.8.6 Trial involving sites outside the EEA
    E.8.6.1Trial being conducted both within and outside the EEA Yes
    E.8.6.2Trial being conducted completely outside of the EEA Information not present in EudraCT
    E.8.6.3If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned
    Australia
    Austria
    Belgium
    Brazil
    Canada
    China
    France
    Germany
    Italy
    Japan
    Korea, Republic of
    Poland
    Portugal
    Russian Federation
    Spain
    Switzerland
    Taiwan
    United Kingdom
    United States
    E.8.7Trial has a data monitoring committee Yes
    E.8.8 Definition of the end of the trial and justification where it is not the last visit of the last subject undergoing the trial
    LVLS.
    Ultima visita dell'ultimo soggetto.
    E.8.9 Initial estimate of the duration of the trial
    E.8.9.1In the Member State concerned years5
    E.8.9.1In the Member State concerned months0
    E.8.9.1In the Member State concerned days0
    E.8.9.2In all countries concerned by the trial years5
    E.8.9.2In all countries concerned by the trial months0
    E.8.9.2In all countries concerned by the trial days0
    F. Population of Trial Subjects
    F.1 Age Range
    F.1.1Trial has subjects under 18 No
    F.1.1.1In Utero No
    F.1.1.2Preterm newborn infants (up to gestational age < 37 weeks) No
    F.1.1.3Newborns (0-27 days) No
    F.1.1.4Infants and toddlers (28 days-23 months) No
    F.1.1.5Children (2-11years) No
    F.1.1.6Adolescents (12-17 years) No
    F.1.2Adults (18-64 years) Yes
    F.1.2.1Number of subjects for this age range: 275
    F.1.3Elderly (>=65 years) Yes
    F.1.3.1Number of subjects for this age range: 375
    F.2 Gender
    F.2.1Female Yes
    F.2.2Male Yes
    F.3 Group of trial subjects
    F.3.1Healthy volunteers No
    F.3.2Patients Yes
    F.3.3Specific vulnerable populations Yes
    F.3.3.1Women of childbearing potential not using contraception No
    F.3.3.2Women of child-bearing potential using contraception Yes
    F.3.3.3Pregnant women No
    F.3.3.4Nursing women No
    F.3.3.5Emergency situation No
    F.3.3.6Subjects incapable of giving consent personally No
    F.3.3.7Others No
    F.4 Planned number of subjects to be included
    F.4.1In the member state36
    F.4.2 For a multinational trial
    F.4.2.1In the EEA 242
    F.4.2.2In the whole clinical trial 650
    F.5 Plans for treatment or care after the subject has ended the participation in the trial (if it is different from the expected normal treatment of that condition)
    The sponsor commits to continue providing tucatinib in accordance with local regulations to subjects who are continuing to demonstrate clinical benefit while receiving tucatinib upon study closure.
    Lo Sponsor si impegna a continuare a fornire tucatinib ai soggetti che continuano a mostrare beneficio clinico dal trattamento con tucatinib, dopo la chiusura dello studio, in accordo alla normativa locale.
    G. Investigator Networks to be involved in the Trial
    N. Review by the Competent Authority or Ethics Committee in the country concerned
    N.Competent Authority Decision Authorised
    N.Date of Competent Authority Decision2022-04-21
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2022-03-01
    P. End of Trial
    P.End of Trial StatusOngoing
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