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A Study of SHR-A1811 Monotherapy or Combined With Pyrotinib Maleate as Neoadjuvant Treatment in HER2-positive Breast Cancer Patients

A Phase II Study of SHR-A1811 Monotherapy or Combined With Pyrotinib Maleate as Neoadjuvant Treatment in HER2-positive Breast Cancer Patients

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05635487
Enrollment
65
Registered
2022-12-02
Start date
2023-03-16
Completion date
2030-02-28
Last updated
2024-07-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HER2-positive Breast Cancer

Keywords

SHR-A1811, Pyrotinib, HER2-positive Breast Cancer, Neoadjuvant

Brief summary

This is a phase II trial evaluating the efficacy and safety of SHR-A1811 monotherapy or combined with pyrotinib maleate in Stage II-III HER2-positive breast cancer. Subjects will receive the neoadjuvant therapy of SHR-A1811 monotherapy or combined with pyrotinib for six cycles, and then undergo surgery within 4 weeks after neoadjuvant therapy. Efficacy will be assessed every 2 cycles.

Interventions

DRUGSHR-A1811

SHR-A1811

DRUGPyrotinib

Pyrotinib

Sponsors

Jiangsu HengRui Medicine Co., Ltd.
CollaboratorINDUSTRY
Shengjing Hospital
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Female patients aged ≥ 18 but ≤ 75 years * Histologically confirmed to be HER2-positive invasive breast cancer * Treatment-naive patients with stage II-III * Eastern Cooperative Oncology Group (ECOG) score 0-1 * Good level of organ function

Exclusion criteria

* Previously received any anti-tumor therapy (chemotherapy, radiotherapy, molecular targeted therapy, endocrine therapy, etc.) * Received any other anti-tumor therapy at the same time * Bilateral breast cancer, inflammatory breast cancer or occult breast cancer * Stage IV breast cancer * With a history of any malignancies in the past 5 years, excluding cured cervical carcinoma in situ and melanoma skin cancer * Inability to swallow, chronic diarrhea, intestinal obstruction, and a variety of factors affecting drug administration and absorption * Participated in other drug clinical trials within 4 weeks before enrollment * History of allergies to the drug components of this protocol * Clinically significant pulmonary diseases * Clinically significant cardiovascular diseases * History of immunodeficiency * Active hepatitis and liver cirrhosis

Design outcomes

Primary

MeasureTime frame
Total pathological complete response (tpCR: ypT0-is/ypN0)At the time of surgery

Secondary

MeasureTime frameDescription
Residual cancer burden (RCB)At the time of surgery
Best overall response rate (BORR)During 18 weeks of the neoadjuvant treatment
Overall survival (OS)5 years
Breast pathological complete response (bpCR:ypT0-is)At the time of surgery
Event-free survival (EFS)5 years
Health-related quality of life (HRQOL) (EORTC QLQ-C30)During 18 weeks of the neoadjuvant treatmentThe European Organization for Research and Treatment of Cancer (EORTC) quality of life questionnaire (QLQ) Core 30 (EORTC QLQ-C30)
Health-related quality of life (HRQOL)During 18 weeks of the neoadjuvant treatmentThe European Organization for Research and Treatment of Cancer (EORTC) quality of life questionnaire Breast Cancer (EORTC QLQ- BR23) will be used to measure the HRQOL.
Disease-free survival (DFS)5 years

Countries

China

Contacts

Primary ContactNan Niu, MD
niunannancy@163.com86-18940256668

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026