De-escalation Neoadjuvant Therapy for Intermediate Risk HER2-positive Early Breast (neoDIRHP)
De-escalation Neoadjuvant Therapy for Intermediate Risk HER2-positive Early Breast:a Randomised,Open-label,Multicentre,Phase 3 Trial
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.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Undersøgelsestype
Tilmelding (Anslået)
Fase
- Fase 3
Kontakter og lokationer
Studiekontakt
- Navn: Kun Wang
- Telefonnummer: +8613922118086
- E-mail: wangkun@gdph.org.cn
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Beskrivelse
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.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
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Eksperimentel: THP×4
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.
|
|
Aktiv komparator: THP×6
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.
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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pCR
Tidsramme: 18 weeks.
|
The primary endpoint was locally determined pathological complete response(pCR, ypT0/is, ypN0).
|
18 weeks.
|
Samarbejdspartnere og efterforskere
Datoer for undersøgelser
Studer store datoer
Studiestart (Anslået)
Primær færdiggørelse (Anslået)
Studieafslutning (Anslået)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Andre undersøgelses-id-numre
- KY2026-686-01
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
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