QuantifyHER: Quantitative Immunofluorescence and/or RT-qPCR for Measuring HER2 in HER2-low Metastatic Breast Cancer
This is not medical advice. AI-assisted translation — inaccuracies may occur. Always verify the original and consult your oncologist before taking any steps.
About the trial
This study will assess whether a quantitative, HER2 assay can accurately and reliably discriminate between responders and non-responders among patients with HER2 IHCI+ metastatic breast cancer who are receiving T-Dxd.
Original English text from ClinicalTrials.gov
Who can (and can't) join
✓ Qualifies
- •Kobiety i mężczyźni powyżej 18 lat.
- •Rak piersi z przerzutami, potwierdzony badaniem histopatologicznym. Możliwy jest każdy stan receptora estrogenowego (ER).
- •Guz pierwotny lub z przerzutami z ekspresją HER2 na poziomie 1+ (według określonych wytycznych).
- •Choroba możliwa do zmierzenia na początku leczenia. Pacjenci z ograniczonymi przerzutami tylko w kościach lub z aktywnymi przerzutami do mózgu mogą wziąć udział.
- •Dostępna tkanka archiwalna do badań. Najnowsza biopsja przerzutu jest wymagana. Jeśli HER2 1+ określono na innej próbce, też jest potrzebna.
- •Zamiar rozpoczęcia leczenia lekiem T-DXd (Enhertu) w zalecanej dawce jako kolejny etap terapii. Jeśli leczenie już się rozpoczęło, pacjent musi być zarejestrowany w ciągu 30 dni od jego rozpoczęcia.
- •Zdolność do wyrażenia świadomej zgody.
✗ Disqualifies
- •Rak piersi z przerzutami, który nadmiernie produkuje HER2 (potwierdzony biopsją przerzutu z wynikiem 3+ lub 2+ z amplifikacją FISH, według standardowych wytycznych).
Simplified criteria — AI translation
Trial details
- Minimum age
- 18 Years
- Last updated (source)
- July 8, 2026
- Sex
- No restrictions
Therapies / drugs in trial
Locations (37)
University of California San Francisco Medical Center
San Francisco, United States
Smilow Cancer Hospital-Derby Care Center
Derby, United States
Smilow Cancer Hospital Care Center
Fairfield, United States
Smilow Cancer Hospital at Glastonbury
Glastonbury, United States
Smilow Cancer Hospital Care Center at Greenwich
Greenwich, United States
Smilow Cancer Hospital Care Center
Guilford, United States
Smilow Cancer Hospital at Saint Francis
Hartford, United States
Yale-New Haven Hospital North Haven Medical Center
New Haven, United States
Yale Cancer Center
New Haven, United States
Smilow Cancer Hospital Care Center at Long Ridge
Stamford, United States
Smilow Cancer Hospital-Torrington Care Center
Torrington, United States
Smilow Cancer Hospital Care Center
Trumbull, United States
Smilow Cancer Hospital-Waterbury Care Center
Waterbury, United States
Smilow Cancer Hospital Care Center - Waterford
Waterford, United States
Georgetown University - Lombardi CCC
Washington D.C., United States
MedStar Washington Hospital Center
Washington D.C., United States
Sibley Memorial Hospital
Washington D.C., United States
University of Chicago Medical Center
Chicago, United States
University of Chicago Comprehensive Cancer Center at Silver Cross
New Lenox, United States
University of Chicago Medicine-Orland Park
Orland Park, United States
University of Chicago Medicine Northwest Indiana
Crown Point, United States
John's Hopkins Hospital
Baltimore, United States
Penn Medicine Princeton Medical Center
Plainsboro, United States
Montefiore Einstein Medical Center
The Bronx, United States
UNC Chapel Hill
Chapel Hill, United States
Abramson Cancer Center of the University of Pennsylvania
Philadelphia, United States
University of Pittsburgh Medical Center
Pittsburgh, United States
UPMC Hillman CC
Pittsburgh, United States
Smilow Cancer Hospital Care Center
Westerly, United States
Ben Taub General Hospital
Houston, United States
MD Anderson Cancer center
Houston, United States
Baylor College of Medicine/Dan L Duncan Comprehensive Cancer Center
Houston, United States
MD Anderson Cancer Center
Houston, United States
MD Anderson Cancer center
League City, United States
MD Anderson Cancer Center
Sugar Land, United States
MD Anderson Cancer center
Woodland, United States
University of Washington - Fred Hutchinson Cancer Center
Seattle, United States
Trial contact
Angela DeMichele, MD
Contact information from ClinicalTrials.gov. Contact in English.
Share this trial
Data from ClinicalTrials.gov. AI-assisted translation, last sync: 7/1/2026.
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