Blood test may help Fine-Tune breast cancer medication levels

NCT ID NCT06572800

First seen Nov 01, 2025 · Last updated Jun 10, 2026 · Updated 35 times

Summary

This study looked at whether a blood test called DiviTum-TKa can help doctors check if patients with metastatic breast cancer are taking their CDK4/6 inhibitor medication correctly and if other drugs are interfering. The test measures a marker of cell growth to see if the treatment is working well. The goal was to see if adjusting medication based on test results could improve treatment response in 34 patients.

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Contacts and locations

Locations

  • Smilow Cancer Center/Yale-New Haven Hospital

    New Haven, Connecticut, 06510, United States

  • Smilow Cancer Hospital Care Center - Guilford

    Guilford, Connecticut, 06437, United States

  • Smilow Cancer Hospital Care Center - Waterford

    Waterford, Connecticut, 06385, United States

  • Smilow Cancer Hospital Care Center - Westerly

    Westerly, Rhode Island, 02891, United States

  • Smilow Cancer Hospital Care Center at Glastonbury

    Glastonbury, Connecticut, 06033, United States

  • Smilow Cancer Hospital Care Center at Greenwich

    Greenwich, Connecticut, 06830, United States

  • Smilow Cancer Hospital Care Center at Long Ridge

    Stamford, Connecticut, 06902, United States

  • Smilow Cancer Hospital Care Center at Saint Francis

    Hartford, Connecticut, 06105, United States

  • Smilow Cancer Hospital Care Center-Fairfield

    Fairfield, Connecticut, 06824, United States

  • Smilow Cancer Hospital Care Center-Trumbull

    Trumbull, Connecticut, 06611, United States

  • Smilow Cancer Hospital-Derby Care Center

    Derby, Connecticut, 06418, United States

  • Smilow Cancer Hospital-Hamden Care Center

    Hamden, Connecticut, 06518, United States

  • Smilow Cancer Hospital-Orange Care Center

    Orange, Connecticut, 06477, United States

  • Smilow Cancer Hospital-Torrington Care Center

    Torrington, Connecticut, 06790, United States

  • Smilow Cancer Hospital-Waterbury Care Center

    Waterbury, Connecticut, 06708, United States

  • Yale University

    New Haven, Connecticut, 06520, United States

  • Yale-New Haven Hospital North Haven Medical Center

    North Haven, Connecticut, 06473, United States

  • Yale-New Haven Hospital Saint Raphael Campus

    New Haven, Connecticut, 06511, United States

Conditions

Explore the condition pages connected to this study.