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.
Studieoversikt
Status
Forhold
Intervensjon / Behandling
- Legemiddel: 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)
- Legemiddel: 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)
Studietype
Registrering (Antatt)
Fase
- Fase 3
Kontakter og plasseringer
Studiekontakt
- Navn: Kun Wang
- Telefonnummer: +8613922118086
- E-post: wangkun@gdph.org.cn
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
- Voksen
- Eldre voksen
Tar imot friske 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 studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Ingen (Open Label)
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Eksperimentell: 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.
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
pCR
Tidsramme: 18 weeks.
|
The primary endpoint was locally determined pathological complete response(pCR, ypT0/is, ypN0).
|
18 weeks.
|
Samarbeidspartnere og etterforskere
Studierekorddatoer
Studer hoveddatoer
Studiestart (Antatt)
Primær fullføring (Antatt)
Studiet fullført (Antatt)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Andre studie-ID-numre
- KY2026-686-01
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
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