De-escalation Neoadjuvant Therapy for Intermediate Risk HER2-positive Early Breast
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: THP×4 Q3W (n=296) (Investigator-selected taxane* + Trastuzumab IV 6 mg/kg, loading dose 8 mg/kg + Pertuzumab IV 420 mg, loading dose 840mg), THP×6 Q3W (n=296) (Investigator-selected taxane* + Trastuzumab IV 6 mg/kg, loading dose 8 mg/kg + Pertuzumab IV 420 mg, loading dose 840mg).
- Who it may be relevant to
- Registry conditions: HER2-positive Breast Cancer. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Center list to be confirmed — check the primary protocol.
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
De-escalation Neoadjuvant Therapy for Intermediate Risk HER2-positive Early Breast:a Randomised,Open-label,Multicentre,Phase 3 Trial
Overview
High pathological complete response (pCR) rates are seen using different neoadjuvant chemotherapy schedules with trastuzumab and pertuzumab in HER2-positive stage II-III breast cancer patients. Total pCR rates in breast and axilla have been described as high as 64%, and with an even higher rate of \>80% in patients with HER2-positive and hormone receptor (HR) negative tumors. pCR is associated with better long-term outcomes in patients with HER2-positive breast cancer. Neoadjuvant treatment of HER2-positive breast cancer typically consists of six cycles of treatment. Longer duration of treatment is associated with higher pCR-rates but also with increased toxicity. It is therefore important to investigate which patients can safely be treated with less than six cycles of chemotherapy and which patients require six cycles for maximum efficacy.It is hypothesized that patients with a complete pathologic response may not benefit from additional chemotherapy, while those with residual invasive disease require further treatment. This study will evaluate de-escalation of the number of neoadjuvant chemotherapy cycles in intermediate risk HER2-positive breast cancer.
Interventions
- Drug THP×4 Q3W (n=296) (Investigator-selected taxane* + Trastuzumab IV 6 mg/kg, loading dose 8 mg/kg + Pertuzumab IV 420 mg, loading dose 840mg)
This study will evaluate de-escalation of the number of neoadjuvant chemotherapy cycles in intermediate risk HER2-positive breast cancer. - Drug THP×6 Q3W (n=296) (Investigator-selected taxane* + Trastuzumab IV 6 mg/kg, loading dose 8 mg/kg + Pertuzumab IV 420 mg, loading dose 840mg)
This study will evaluate de-escalation of the number of neoadjuvant chemotherapy cycles in intermediate risk HER2-positive breast cancer.
Primary outcome measures
- pCR [Time frame: 18 weeks.]
Eligibility criteria
Inclusion criteria
Histopathologically confirmed HER2-positive invasive breast cancer; Clinical staging of disease classified as T2N0M0.
Exclusion criteria
Patients who have undergone chemotherapy, endocrine therapy, targeted therapy, or radiotherapy for this condition; Due to severe and uncontrolled medical conditions, the investigator deems chemotherapy contraindicated.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Open label
- Primary purpose
- Treatment
Study locations
Center list to be confirmed — check the primary protocol.
Identifiers
NCT: NCT07748260 · KY2026-686-01