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QuantifyHER: Quantitative Immunofluorescence and/or RT-qPCR for Measuring HER2 in HER2-low Metastatic Breast Cancer
Sponsor: Abramson Cancer Center at Penn Medicine
Summary
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.
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
OBSERVATIONAL
Enrollment
200
Start Date
2024-10-10
Completion Date
2029-09-01
Last Updated
2026-04-07
Healthy Volunteers
No
Conditions
Interventions
CE-10-IVD
Leftover tumor tissue from a routine biopsy will be sent for analysis.
Locations (37)
University of California San Francisco Medical Center
San Francisco, California, United States
Smilow Cancer Hospital-Derby Care Center
Derby, Connecticut, United States
Smilow Cancer Hospital Care Center
Fairfield, Connecticut, United States
Smilow Cancer Hospital at Glastonbury
Glastonbury, Connecticut, United States
Smilow Cancer Hospital Care Center at Greenwich
Greenwich, Connecticut, United States
Smilow Cancer Hospital Care Center
Guilford, Connecticut, United States
Smilow Cancer Hospital at Saint Francis
Hartford, Connecticut, United States
Yale-New Haven Hospital North Haven Medical Center
New Haven, Connecticut, United States
Yale Cancer Center
New Haven, Connecticut, United States
Smilow Cancer Hospital Care Center at Long Ridge
Stamford, Connecticut, United States
Smilow Cancer Hospital-Torrington Care Center
Torrington, Connecticut, United States
Smilow Cancer Hospital Care Center
Trumbull, Connecticut, United States
Smilow Cancer Hospital-Waterbury Care Center
Waterbury, Connecticut, United States
Smilow Cancer Hospital Care Center - Waterford
Waterford, Connecticut, United States
Georgetown University - Lombardi CCC
Washington D.C., District of Columbia, United States
MedStar Washington Hospital Center
Washington D.C., District of Columbia, United States
Sibley Memorial Hospital
Washington D.C., District of Columbia, United States
University of Chicago Medical Center
Chicago, Illinois, United States
University of Chicago Comprehensive Cancer Center at Silver Cross
New Lenox, Illinois, United States
University of Chicago Medicine-Orland Park
Orland Park, Illinois, United States
University of Chicago Medicine Northwest Indiana
Crown Point, Indiana, United States
John's Hopkins Hospital
Baltimore, Maryland, United States
Penn Medicine Princeton Medical Center
Plainsboro, New Jersey, United States
Montefiore Einstein Medical Center
The Bronx, New York, United States
UNC Chapel Hill
Chapel Hill, North Carolina, United States
Abramson Cancer Center of the University of Pennsylvania
Philadelphia, Pennsylvania, United States
University of Pittsburgh Medical Center
Pittsburgh, Pennsylvania, United States
UPMC Hillman CC
Pittsburgh, Pennsylvania, United States
Smilow Cancer Hospital Care Center
Westerly, Rhode Island, United States
Ben Taub General Hospital
Houston, Texas, United States
MD Anderson Cancer center
Houston, Texas, United States
Baylor College of Medicine/Dan L Duncan Comprehensive Cancer Center
Houston, Texas, United States
MD Anderson Cancer Center
Houston, Texas, United States
MD Anderson Cancer center
League City, Texas, United States
MD Anderson Cancer Center
Sugar Land, Texas, United States
MD Anderson Cancer center
Woodland, Texas, United States
University of Washington - Fred Hutchinson Cancer Center
Seattle, Washington, United States