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

2026년 5월 14일 업데이트: 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.

연구 개요

연구 유형

중재적

등록 (추정된)

500

단계

  • 4단계

연락처 및 위치

이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.

연구 연락처

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

  • 성인
  • 고령자

건강한 자원 봉사자를 받아들입니다

아니

설명

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.

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

  • 주 목적: 치료
  • 할당: 무작위화되지 않음
  • 중재 모델: 병렬 할당
  • 마스킹: 없음(오픈 라벨)

무기와 개입

참가자 그룹 / 팔
개입 / 치료
실험적: 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.
실험적: 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.

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
rwPFS2
기간: 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.

2차 결과 측정

결과 측정
측정값 설명
기간
rwPFS
기간: 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
기간: 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
기간: 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
기간: 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.

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

수사관

  • 연구 의자: wang shu, Peking University People's Hospital

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작 (추정된)

2026년 6월 1일

기본 완료 (추정된)

2031년 12월 30일

연구 완료 (추정된)

2031년 12월 30일

연구 등록 날짜

최초 제출

2026년 5월 7일

QC 기준을 충족하는 최초 제출

2026년 5월 14일

처음 게시됨 (실제)

2026년 5월 20일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)

2026년 5월 20일

QC 기준을 충족하는 마지막 업데이트 제출

2026년 5월 14일

마지막으로 확인됨

2026년 5월 1일

추가 정보

이 연구와 관련된 용어

개별 참가자 데이터(IPD) 계획

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아니요

약물 및 장치 정보, 연구 문서

미국 FDA 규제 의약품 연구

아니

미국 FDA 규제 기기 제품 연구

아니

이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .

진행성 유방암에 대한 임상 시험

Pyrotinib에 대한 임상 시험

구독하다