Real-world Study of Pyrotinib-containing Regimens of Advanced HER2-positive Breast Cancer
10 de julho de 2026 atualizado por: 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.
Visão geral do estudo
Status
Recrutamento
Condições
Intervenção / Tratamento
Tipo de estudo
Intervencional
Inscrição (Estimado)
500
Estágio
- Fase 4
Contactos e Locais
Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.
Contato de estudo
- Nome: peng yuan
- Número de telefone: 86+13671287670
- E-mail: 13671287670@163.com
Locais de estudo
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Beijing Municipality
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Beijing, Beijing Municipality, China, 100044
- Recrutamento
- Peking University People's Hospital
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Contato:
- yuan peng
- Número de telefone: 86+13671287670
- E-mail: 13671287670@163.com
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Critérios de participação
Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
- Adulto mais velho
Aceita Voluntários Saudáveis
Não
Descrição
Inclusion Criteria:
- Aged ≥ 18 years old;
- Histopathologically confirmed HER2-positive inoperable locally advanced or metastatic breast cancer;
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;
- 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;
- Traceable medical records available throughout the treatment period.
Exclusion Criteria:
- Failure to sign the informed consent form;
- Pregnant or lactating females;
- Patients participating in any interventional clinical trial involving investigational drugs or marketed drugs at enrollment;
- Other conditions deemed ineligible for enrollment by the investigator's judgment.
Plano de estudo
Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Não randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Nenhum (rótulo aberto)
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
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Experimental: 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.
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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.
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Experimental: 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.
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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.
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
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rwPFS2
Prazo: 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.
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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.
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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.
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Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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rwPFS
Prazo: 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.
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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.
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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.
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OS
Prazo: From the initiation of the study treatment regimen to death from any cause，assessed up to 60 months.
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Overall Survival (OS): defined as the time from the initiation of the study treatment regimen to death from any cause.
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From the initiation of the study treatment regimen to death from any cause，assessed up to 60 months.
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rwORR
Prazo: From the initiation of the study treatment regimen until disease progression or study withdrawal，assessed up to 60 months.
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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.
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From the initiation of the study treatment regimen until disease progression or study withdrawal，assessed up to 60 months.
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rwTTF
Prazo: From the initiation of the study treatment regimen until disease progression or study withdrawal，assessed up to 60 months.
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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.
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From the initiation of the study treatment regimen until disease progression or study withdrawal，assessed up to 60 months.
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Colaboradores e Investigadores
É aqui que você encontrará pessoas e organizações envolvidas com este estudo.
Patrocinador
Investigadores
- Cadeira de estudo: wang shu, Peking University People's Hospital
Datas de registro do estudo
Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.
Datas Principais do Estudo
Início do estudo (Real)
6 de julho de 2026
Conclusão Primária (Estimado)
30 de dezembro de 2031
Conclusão do estudo (Estimado)
30 de dezembro de 2031
Datas de inscrição no estudo
Enviado pela primeira vez
7 de maio de 2026
Enviado pela primeira vez que atendeu aos critérios de CQ
14 de maio de 2026
Primeira postagem (Real)
20 de maio de 2026
Atualizações de registro de estudo
Última Atualização Postada (Real)
13 de julho de 2026
Última atualização enviada que atendeu aos critérios de controle de qualidade
10 de julho de 2026
Última verificação
1 de maio de 2026
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
- MA-BC-RWS-141
Plano para dados de participantes individuais (IPD)
Planeja compartilhar dados de participantes individuais (IPD)?
NÃO
Informações sobre medicamentos e dispositivos, documentos de estudo
Estuda um medicamento regulamentado pela FDA dos EUA
Não
Estuda um produto de dispositivo regulamentado pela FDA dos EUA
Não
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