RecruitingNCT06693037

Adjuvant Therapy Choice for Non-pCR HER2 Positive Early Breast Cancer After Neoadjuvant Therapy

A Cohort Study of Different Choice of Adjuvant Therapy in Non-PCR Patients With HER2 Positive Early Breast Cancer After Neoadjuvant Therapy


Sponsor

Shu Wang

Enrollment

2,092 participants

Start Date

Jan 1, 2019

Study Type

OBSERVATIONAL

Conditions

Summary

Chemotherapy combined with trastuzumab and patuzumab is the standard neoadjuvant therapy for HER2 positive breast cancer patients. The survival rate of patients with pathological complete response (PCR) after neoadjuvant therapy was significantly better than that of patients with tumor residue, that is, non-PCR. Therefore, studies have confirmed that adjuvant therapy for patients with non-PCR after neoadjuvant chemotherapy can further improve the prognosis and survival of this population. However, the results of previous studies are based on trastuzumab target therapy in neoadjuvant therapy. Therefore, there are different recommendations for the current guidelines of adjuvant therapy after trastuzumab combined pertuzumab target neoadjuvant therapy. Patients with HER2 positive breast cancer who received trastuzumab and patuzumab based neoadjuvant therapy had invasive residual cancer in postoperative pathology. The effect of postoperative adjuvant therapy with trastuzumab and patuzumab or replacement of T-DM1 on survival.


Eligibility

Inclusion Criteria6

  • \) Patients with HER2 positive breast cancer were diagnosed by biopsy in Peking University People's hospital;
  • \) The clinical stages before treatment were T1-T4, N0-N3, M0;
  • \) Received treatment and operation in our hospital, and had hospitalization records;
  • \) Receive at least 4 cycles of trastuzumab and pertuzumab target therapy combined chemotherapy as neoadjuvant therapy
  • \) Postoperative pathology confirmed the presence of residual invasive breast cancer in the breast and/or metastatic tumor lesions in axillary lymph nodes;
  • \) Has signed and agreed to participate in the PKUPH breast disease cohort study.

Exclusion Criteria4

  • \) Lack of clinical and pathological data (such as imaging data and pathological data);
  • \) Patients with metastatic breast cancer or bilateral breast cancer;
  • \) Failure to perform radical surgery;
  • \) Receiving other regimens besides the established neoadjuvant regimens.

Locations(1)

Peking University People's Hospital

Beijing, Beijing Municipality, China

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NCT06693037


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