Ignite Creation Date:
2025-12-25 @ 4:49 AM
Ignite Modification Date:
2025-12-26 @ 3:51 AM
Study NCT ID:
NCT04733118
Status:
ACTIVE_NOT_RECRUITING
Last Update Posted:
2025-11-20
First Post:
2020-12-04
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
Chemotherapy-Free pCR-Guided Strategy With Trastuzumab-pertuzumab and T-DM1 in HER2-positive Early Breast Cancer
Sponsor:
MedSIR
Organization:
Study Overview
Official Title:
Chemotherapy-Free pCR-Guided Strategy With Subcutaneous Trastuzumab-pertuzumab and T-DM1 in HER2-positive Early Breast Cancer (PHERGAIN-2)
Status:
ACTIVE_NOT_RECRUITING
Status Verified Date:
2025-11
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
PHERGAIN-2
Brief Summary:
This is a multicenter, open-label, single-arm, one-stage, phase II study to assess the efficacy of a chemotherapy-free pathological complete response (pCR)-guided strategy with trastuzumab and pertuzumab (given as a subcutaneous fixed-dose combination) and T-DM1, for patients with previously untreated HER2-positive early breast cancer.
Detailed Description:
Patients ≥ 18 years of age with previously untreated HER2 IHC 3+ invasive carcinoma according to ASCO/CAP 2018 guidelines.
Tumor size between \>5 to 30 mm by breast MRI and node-negative status by clinical exam, MRI, and ultrasound. In patients with suspected axillary node involvement, a negative fine needle aspiration biopsy (FNAB) will be mandatory.
Central review for:
Breast MRI. HER2 status. Neoadjuvant treatment will consist In 8 cycles of fixed-dose subcutaneous (SC FDC) HP combination (± ET according to HR status).
urgery will be performed within 4 weeks from the last cycle of HP (sentinel node biopsy will be mandatory; subsequent axillary dissection will be performed according to local guidelines). Surgery will require free margins for any infiltrating or DCIS lesion.
Radiotherapy will be mandatory for patients with breast preservation.
Adjuvant systemic therapy will be started within 4 weeks from surgery depending on pathological report:
Arm A: pCR (breast and axilla): HP SC FDC x 10 cycles. Arm B: Residual invasive breast tumor and/or ypN0(i+), ypN0(mol+), ypN1mi: T-DM1 x 10 cycles Arm C: ypN1 to N3: T-DM1 x 10 cycles, with physician's choice chemotherapy allowed between surgery and T-DM1.
All patients with HR\[+\] tumors will receive adjuvant ET up to at least 5 years (ET will also be administered in association with adjuvant HP or T-DM1, with the exception of the cycles involving the use of chemotherapy in Arm C).
Tumor size between \>5 to 30 mm by breast MRI and node-negative status by clinical exam, MRI, and ultrasound. In patients with suspected axillary node involvement, a negative fine needle aspiration biopsy (FNAB) will be mandatory.
Central review for:
Breast MRI. HER2 status. Neoadjuvant treatment will consist In 8 cycles of fixed-dose subcutaneous (SC FDC) HP combination (± ET according to HR status).
urgery will be performed within 4 weeks from the last cycle of HP (sentinel node biopsy will be mandatory; subsequent axillary dissection will be performed according to local guidelines). Surgery will require free margins for any infiltrating or DCIS lesion.
Radiotherapy will be mandatory for patients with breast preservation.
Adjuvant systemic therapy will be started within 4 weeks from surgery depending on pathological report:
Arm A: pCR (breast and axilla): HP SC FDC x 10 cycles. Arm B: Residual invasive breast tumor and/or ypN0(i+), ypN0(mol+), ypN1mi: T-DM1 x 10 cycles Arm C: ypN1 to N3: T-DM1 x 10 cycles, with physician's choice chemotherapy allowed between surgery and T-DM1.
All patients with HR\[+\] tumors will receive adjuvant ET up to at least 5 years (ET will also be administered in association with adjuvant HP or T-DM1, with the exception of the cycles involving the use of chemotherapy in Arm C).
Study Oversight
Has Oversight DMC:
True
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
False
Is an FDA AA801 Violation?: