Could tailored tamoxifen doses keep more breast cancer patients on treatment?

NCT ID NCT07502820

First seen Apr 04, 2026 · Last updated Jun 11, 2026 · Updated 14 times

Summary

This phase 3 trial tests whether adjusting tamoxifen doses based on individual metabolism can reduce the number of breast cancer patients who stop treatment early due to side effects. About 1,100 premenopausal or perimenopausal women with hormone-sensitive breast cancer will receive either standard or personalized dosing. The goal is to improve adherence and survival outcomes.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Capio S:t Görans Sjukhus

    Stockholm, 112 81, Sweden

    Contact

  • S:a Älvsborgs Sjukhus

    Borås, 501 82, Sweden

    Contact

  • Skaraborgs Sjukhus

    Skövde, 549 49, Sweden

    Contact

  • Södersjukhuset, Onkologiska kliniken

    Stockholm, 118 61, Sweden

    Contact

Conditions

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