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Recruiting Phase 2 NCT06439693

NCT06439693 The SAPPHO Study: Sequential Therapy With Curative Intent in de Novo HER2+ Metastatic Breast Cancer

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Clinical Trial Summary
NCT ID NCT06439693
Status Recruiting
Phase Phase 2
Sponsor Dana-Farber Cancer Institute
Condition Breast Cancer Female
Study Type INTERVENTIONAL
Enrollment 72 participants
Start Date 2024-08-08
Primary Completion 2030-03-30

Trial Parameters

Condition Breast Cancer Female
Sponsor Dana-Farber Cancer Institute
Study Type INTERVENTIONAL
Phase Phase 2
Enrollment 72
Sex ALL
Min Age 18 Years
Max Age N/A
Start Date 2024-08-08
Completion 2030-03-30
Interventions
Nab-PaclitaxelPaclitaxelDocetaxel

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Brief Summary

The purpose of this study is to test the safety and effectiveness of a sequence of drugs (a Taxane plus Trastuzumab plus Pertuzumab followed by Trastuzumab Deruxtecan, followed by Tucatinib plus Ado-Trastuzumab Emtansine (T-DM1), followed by Trastuzumab plus Pertuzumab plus Tucatinib) in HER2+ Breast Cancer. The study will help investigators understand whether first intensifying therapy for a specific period and then stopping treatment is safe and effective for participants. The names of the study drugs involved in this study are: * Paclitaxel (a type of anti-microtubule agent) * Docetaxel (a type of anti-microtubule agent) * Nab-Paclitaxel (a type of anti-microtubule agent) * Trastuzumab (a type of IgG1 kappa monoclonal antibody) * Pertuzumab (a type of monoclonal antibody) * Trastuzumab Deruxtecan (a type of HER2-directed antibody drug conjugate) * Tucatinib (Tyrosine Kinase HER2 Inhibitor) * Ado-trastuzumab emtansine or T-DM1 (a type of HER2-targeted antibody-drug conjugate)

Eligibility Criteria

Inclusion criteria: * Participants must have histologically or cytologically confirmed unresectable locally advanced or metastatic invasive breast carcinoma. Patients must have stage IV breast carcinoma at diagnosis (i.e., de novo metastatic) with unequivocal evidence of metastasis on imaging. * Diagnosis of HER2-positive invasive breast carcinoma and 3+ by immunohistochemistry on both breast and metastatic biopsies, as defined by the current American Society of Clinical Oncology - College of American Pathologists (ASCO/CAP) guidelines. HER2 status must be determined at a Clinical Laboratory Improvements Amendments (CLIA)-certified or International Organization for Standardization (ISO)-accredited laboratory (central testing not required). Patients with HER2 1+ or 2+ disease which is HER2 FISH positive are not eligible to enroll. * No prior systemic therapy for invasive breast cancer, aside from first-line trastuzumab/pertuzumab/taxane (THP) within 6 weeks from treatment start. Prior e

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: April 2026  ·  Data Methodology