RecruitingPhase IIEN original

ASPEN-09-03: A Study of Evorpacept in Combination With Trastuzumab and Chemotherapy in Metastatic HER2-Positive Breast Cancer

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About the trial

The Substudy Protocol ASPEN-09-03 is a Phase 2, single-arm, multicenter study evaluating the efficacy, safety, and tolerability of evorpacept in combination with trastuzumab and chemotherapy in participants with HER2-positive metastatic breast cancer who have previously received trastuzumab-deruxtecan. This substudy is actively recruiting. ASPEN-09-03 is a substudy under Master Protocol ASPEN-09, and additional substudies are as follows: * Metastatic colorectal cancer (CRC) - dose escalation phase to evaluate evorpacept in combination with other drugs. This substudy is not open. * Recurrent/metastatic head and neck cancer (HNSCC) - dose escalation phase to evaluate evorpacept in combination with other drugs. This substudy is not open.

Original English text from ClinicalTrials.gov

Who can (and can't) join

✓ Qualifies

  • Potwierdzony histologicznie zaawansowany rak piersi HER2-dodatni
  • Co najmniej jedno poprzednie leczenie, w tym lek T-DXd (ENHERTU)
  • Progresja choroby po ostatnim leczeniu
  • Możliwość otrzymywania jednego z dostępnych chemioterapeutyków (kapecytabina, eribulina, gemcytabina, paklitaksel lub winorelbin)
  • Mierzalne ogniska nowotworu
  • Frakcja wyrzutowa lewej komory serca ≥50%
  • Sprawność ogólna oceniana na 0-1 w skali ECOG
  • Spodziewana długość życia co najmniej 3 miesiące

✗ Disqualifies

  • Przerzuty do mózgu, chyba że leczone i stabilne
  • Poprzednie leczenie lekami anty-CD47 lub anty-SIRPα
  • Przeciwwskazania do otrzymywania trastuzumabu
  • Pełny niedobór enzymu DPD lub poważne działania niepożądane po wcześniejszej chemioterapii opartej na 5FU
  • Niedostateczny czas od ostatniego leczenia przeciwnowotworowego
  • Historia autoimmunologicznej niedokrwistości hemolitycznej lub niedokrwistości autoimmunologicznej
  • Przeszczep tkanki lub organu
  • Aktywna, niestabilna choroba sercowo-naczyniowa

Simplified criteria — AI translation

Trial details

Minimum age
18 Years
Last updated (source)
June 5, 2026
Sex
No restrictions

Therapies / drugs in trial

Locations (44)

The University of Arizona Cancer Center - North Campus

Tucson, United States

City of Hope

Duarte, United States

UC San Diego Moores Cancer Center

La Jolla, United States

UC Irvine Health - Chao Family Comprehensive Cancer Center

Orange, United States

Saint Joseph Hospital - Cancer Centers of Colorado

Denver, United States

Lutheran Hospital - Cancer Centers of Colorado

Golden, United States

Saint Mary's Regional Hospital - Cancer Centers of Colorado

Grand Junction, United States

The George Washington Medical facility Associates

Washington D.C., United States

Sylvester Comprehensive Cancer Center

Miami, United States

City of Hope Chicago

Zion, United States

University of Michigan Rogel Cancer Center

Ann Arbor, United States

HealthPartners Frauenshuh Cancer Center

Saint Louis Park, United States

St. Vincent Regional Hospital - Cancer Centers of Montana

Billings, United States

Oncology Hematology West, Pc Dba Nebraska Cancer Specialists

Omaha, United States

Memorial Sloan Kettering Cancer Center

New York, United States

Gabrail Cancer Center

Canton, United States

University of Texas Southwestern Medical Center

Dallas, United States

Houston Methodist Cancer Center

Houston, United States

The University of Texas M.D. Anderson Cancer Center

Houston, United States

Virginia Cancer Specialists

Fairfax, United States

Fred Hutchinson Cancer Center

Seattle, United States

University Health Network, Princess Margaret Cancer Centre

Toronto, Canada

Hopital de l'Institut Curie

Paris, France

Hopital Europeen Georges Pompidou (HEGP)

Paris, France

Centre Hospitalier Universitaire (CHU) de Poitiers

Poitiers, France

Centre Eugene Marquis

Rennes, France

Azienda Ospedaliero Universitaria delle Marche

Torrette, Italy

IRCCS Azienda Ospedaliera Metropolitana

Genova, Italy

Azienda Ospedaliero- Universitaria Maggiore della CaritÃ, SCDU Oncologia

Novara, Italy

National Cancer Centre Singapore

Singapore, Singapore

Curie Oncology - Farrer

Singapore, Singapore

Inha University Hospital

Incheon, South Korea

Seoul National University Hospital

Seoul, South Korea

Severance Hospital, Yonsei University Health System

Seoul, South Korea

Asan Medical Center

Seoul, South Korea

Samsung Medical Center

Seoul, South Korea

Korea University Guro Hospital

Seoul, South Korea

Hospital Universitario Virgen de la Victoria

Málaga, Spain

Hospital Universitario Virgen Macarena

Seville, Spain

Hospital Universitari Arnau de Villanova

Lleida, Spain

Hospital de la Santa Creu i Sant Pau

Barcelona, Spain

Hospital Beata Maria Ana

Madrid, Spain

Barts Health NHS Trust - St Bartholomew's Hospital

London, United Kingdom

Velindre Cancer Centre, Velindre University NHS Trust

Cardiff, United Kingdom

Trial contact

Contact information from ClinicalTrials.gov. Contact in English.

Data from ClinicalTrials.gov. AI-assisted translation, last sync: 7/1/2026.