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Real-world Study of Pyrotinib-containing Regimens of Advanced HER2-positive Breast Cancer

14 maja 2026 zaktualizowane przez: Shu Wang, Peking University People's Hospital

Real-world Study of Pyrotinib-containing Regimens in First-line or Second-line Treatment of Advanced HER2-positive Breast Cancer

Given that pyrotinib has been proven to exert significant efficacy against HER2-positive advanced breast cancer in multiple Phase III studies, and the novel ADC drug disitamab vedotin has demonstrated potent anti-tumor activity, there remains insufficient real-world data on their sequential administration. This multicenter, prospective real-world study plans to enroll 500 patients with HER2-positive advanced breast cancer receiving first-line or second-line treatment. It aims to evaluate the efficacy and safety of sequential disitamab vedotin treatment after disease progression or intolerance to pyrotinib-based regimens (first-line: pyrotinib plus trastuzumab combined with chemotherapy; second-line: pyrotinib plus capecitabine). The primary endpoint is real-world second progression-free survival (rwPFS2), while secondary endpoints cover real-world progression-free survival (rwPFS), tumor response, overall survival (OS), time to treatment failure, safety profiles and patient-reported outcomes. It is currently expected to further validate the efficacy and safety of pyrotinib in patients with advanced HER2-positive breast cancer in the real-world setting, and to evaluate the efficacy and safety of recindopril trastuzumab following pyrotinib-containing regimens.

Przegląd badań

Status

Jeszcze nie rekrutacja

Typ studiów

Interwencyjne

Zapisy (Szacowany)

500

Faza

  • Faza 4

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Kontakt w sprawie studiów

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

  • Dorosły
  • Starszy dorosły

Akceptuje zdrowych ochotników

Nie

Opis

Inclusion Criteria:

  1. Aged ≥ 18 years old;
  2. Histopathologically confirmed HER2-positive inoperable locally advanced or metastatic breast cancer;
  3. Patients with first-line or second-line advanced disease:

    First-line advanced disease: no prior systemic therapy for locally advanced or metastatic disease. For patients who received neoadjuvant or adjuvant therapy, the disease-free interval (DFI) after the completion of the last chemotherapy or HER2-targeted therapy was more than 12 months; Second-line advanced disease: prior treatment with taxane combined with trastuzumab, with or without pertuzumab, in the advanced setting; or recurrence occurring during neoadjuvant/adjuvant therapy, or a disease-free interval (DFI) of ≤ 12 months after completion of the last neoadjuvant/adjuvant chemotherapy and HER2-targeted therapy;

  4. Planned to receive pyrotinib-containing regimen, and judged by investigators based on clinical practice to have potential subsequent treatment with Ruikang trastuzumab after failure of pyrotinib-containing therapy;
  5. Traceable medical records available throughout the treatment period.

Exclusion Criteria:

  1. Failure to sign the informed consent form;
  2. Pregnant or lactating females;
  3. Patients participating in any interventional clinical trial involving investigational drugs or marketed drugs at enrollment;
  4. Other conditions deemed ineligible for enrollment by the investigator's judgment.

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

  • Główny cel: Leczenie
  • Przydział: Nielosowe
  • Model interwencyjny: Przydział równoległy
  • Maskowanie: Brak (otwarta etykieta)

Broń i interwencje

Grupa uczestników / Arm
Interwencja / Leczenie
Eksperymentalny: Cohort A
This cohort consists of patients with first-line advanced disease. First-line advanced disease is defined as no prior systemic therapy administered for locally advanced or metastatic disease. For patients who have received neoadjuvant or adjuvant therapy, the disease-free interval (DFI) after the completion of the last chemotherapy or HER2-targeted therapy must be longer than 12 months. First-line patients receive treatment with pyrotinib plus trastuzumab combined with chemotherapy. Upon disease progression or intolerance to pyrotinib-containing regimens, subsequent treatment with Trastuzumab Rezetecan will be administered.
Pyrotinib: administered orally once daily at a dose of 400 mg, 320 mg or 240 mg within 30 minutes after breakfast. A continuous administration of 21 days is defined as one treatment cycle. The dosage of pyrotinib will be adjusted by physicians according to the individual clinical conditions. Concomitant chemotherapeutic agents and other supportive care treatments are determined at the investigators' discretion in accordance with clinical practice guidelines and drug instructions.
Trastuzumab Rezetecan: administered intravenously at a dose of 4.8 mg/kg on Day 1 of each cycle, with a 21-day treatment cycle.
Eksperymentalny: Cohort B
This cohort includes patients with second-line advanced breast cancer. Second-line advanced disease is defined as prior receipt of taxane combined with trastuzumab, with or without pertuzumab, in the advanced setting; or disease recurrence during neoadjuvant/adjuvant therapy, or a disease-free interval (DFI) of ≤ 12 months after completion of the last cycle of neoadjuvant/adjuvant chemotherapy and HER2-targeted therapy. Patients in the second-line setting are treated with pyrotinib plus capecitabine. Following disease progression or intolerance to pyrotinib-containing regimens, subsequent treatment with Trastuzumab Rezetecan is administered.
Pyrotinib: administered orally once daily at a dose of 400 mg, 320 mg or 240 mg within 30 minutes after breakfast. A continuous administration of 21 days is defined as one treatment cycle. The dosage of pyrotinib will be adjusted by physicians according to the individual clinical conditions. Concomitant chemotherapeutic agents and other supportive care treatments are determined at the investigators' discretion in accordance with clinical practice guidelines and drug instructions.
Trastuzumab Rezetecan: administered intravenously at a dose of 4.8 mg/kg on Day 1 of each cycle, with a 21-day treatment cycle.

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Opis środka
Ramy czasowe
rwPFS2
Ramy czasowe: From the start of first administration of pyrotinib-containing regimen (first-line or second-line) until disease progression or death occurring after the initiation of subsequent trastuzumab Rezetecan therapy,assessed up to 60 months.
Second assessment of real-world progression-free survival (rwPFS2): defined as the time (in months) from the initial administration of pyrotinib-containing regimens (first-line pyrotinib combined with trastuzumab plus chemotherapy, or second-line pyrotinib combined with capecitabine) to disease progression or death after the initiation of subsequent Trastuzumab Rezetecan therapy.
From the start of first administration of pyrotinib-containing regimen (first-line or second-line) until disease progression or death occurring after the initiation of subsequent trastuzumab Rezetecan therapy,assessed up to 60 months.

Miary wyników drugorzędnych

Miara wyniku
Opis środka
Ramy czasowe
rwPFS
Ramy czasowe: From the start of initial pyrotinib treatment until the occurrence of disease progression, death, or switch to trastuzumab rezetecan due to intolerable toxicity,assessed up to 60 months.
Real-world progression-free survival (rwPFS): defined as the time from the initial initiation of pyrotinib treatment to disease progression, death, or switch to Trastuzumab Rezetecan due to intolerable toxicity.
From the start of initial pyrotinib treatment until the occurrence of disease progression, death, or switch to trastuzumab rezetecan due to intolerable toxicity,assessed up to 60 months.
OS
Ramy czasowe: From the initiation of the study treatment regimen to death from any cause,assessed up to 60 months.
Overall Survival (OS): defined as the time from the initiation of the study treatment regimen to death from any cause.
From the initiation of the study treatment regimen to death from any cause,assessed up to 60 months.
rwORR
Ramy czasowe: From the initiation of the study treatment regimen until disease progression or study withdrawal,assessed up to 60 months.
Real-world Objective Response Rate (rwORR): refers to the percentage of subjects with a best overall response of CR or PR from the initiation of the study treatment regimen until disease progression and study withdrawal, among the total number of subjects in the analysis set.
From the initiation of the study treatment regimen until disease progression or study withdrawal,assessed up to 60 months.
rwTTF
Ramy czasowe: From the initiation of the study treatment regimen until disease progression or study withdrawal,assessed up to 60 months.
Real-world Time to Treatment Failure (rwTTF): defined as the time from the date of treatment initiation to treatment discontinuation for any reason, including but not limited to disease progression, death, adverse drug reactions/toxicity, patient preference, and initiation of subsequent-line therapy.
From the initiation of the study treatment regimen until disease progression or study withdrawal,assessed up to 60 months.

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Śledczy

  • Krzesło do nauki: wang shu, Peking University People's Hospital

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów (Szacowany)

1 czerwca 2026

Zakończenie podstawowe (Szacowany)

30 grudnia 2031

Ukończenie studiów (Szacowany)

30 grudnia 2031

Daty rejestracji na studia

Pierwszy przesłany

7 maja 2026

Pierwszy przesłany, który spełnia kryteria kontroli jakości

14 maja 2026

Pierwszy wysłany (Rzeczywisty)

20 maja 2026

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Rzeczywisty)

20 maja 2026

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

14 maja 2026

Ostatnia weryfikacja

1 maja 2026

Więcej informacji

Terminy związane z tym badaniem

Plan dla danych uczestnika indywidualnego (IPD)

Planujesz udostępniać dane poszczególnych uczestników (IPD)?

NIE

Informacje o lekach i urządzeniach, dokumenty badawcze

Bada produkt leczniczy regulowany przez amerykańską FDA

Nie

Bada produkt urządzenia regulowany przez amerykańską FDA

Nie

Te informacje zostały pobrane bezpośrednio ze strony internetowej clinicaltrials.gov bez żadnych zmian. Jeśli chcesz zmienić, usunąć lub zaktualizować dane swojego badania, skontaktuj się z register@clinicaltrials.gov. Gdy tylko zmiana zostanie wprowadzona na stronie clinicaltrials.gov, zostanie ona automatycznie zaktualizowana również na naszej stronie internetowej .

Badania kliniczne na Zaawansowany rak piersi

Badania kliniczne na Pyrotinib

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