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OncoMatch/Clinical Trials/NCT06686394

Study of Patritumab Deruxtecan With Other Anticancer Agents in Participants With HER2 Positive Breast Cancer That Has Spread and Cannot Be Surgically Removed (MK-1022-009)

Is NCT06686394 recruiting? Yes, currently enrolling (May 2026). This Phase 1/2 trial studies multiple treatments for breast neoplasms.

Phase 1/2RecruitingMerck Sharp & Dohme LLCNCT06686394Data as of May 2026

Treatment: Patritumab deruxtecan · Trastuzumab · Trastuzumab Biosimilar · Pertuzumab · TucatinibResearchers want to learn if patritumab deruxtecan (MK-1022) can treat certain breast cancers. The breast cancers being studied are HER2 positive unresectable locally advanced or metastatic (the cancer has spread to other parts of the body). The goals of this study are to learn: * About the safety and how well people tolerate of patritumab deruxtecan * How many people have the cancer respond (get smaller or go away) to treatment

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Extracted eligibility criteria

Cancer type

Breast Carcinoma

Biomarker criteria

Required: HER2 (ERBB2) overexpression (HER2+)

Has histologically confirmed HER2+ locally advanced unresectable breast cancer or metastatic breast cancer

Performance status

ECOG 0–1(Restricted strenuous activity)

Structured fields extracted by AI. May contain errors — verify against the official protocol.

US trial sites

  • Dana-Farber Cancer Institute ( Site 0050) · Boston, Massachusetts
  • Rutgers Cancer Institute of New Jersey ( Site 0052) · New Brunswick, New Jersey
  • Prisma Health - Upstate (ITOR)_Edenfield ( Site 0053) · Greenville, South Carolina
  • Inova Schar Cancer Institute ( Site 0051) · Fairfax, Virginia

Showing up to 5 US sites. See all sites on ClinicalTrials.gov →

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