Do breast cancer patients stick to their meds? new study aims to find out

NCT ID NCT06650423

First seen Mar 28, 2026 · Last updated Jun 23, 2026 · Updated 15 times

Summary

This study will follow 319 women with early-stage, hormone-sensitive, HER2-negative breast cancer to see how well they take their prescribed aromatase inhibitors, with or without the added drug abemaciclib. Researchers will measure adherence using pill counts and questionnaires at 3 and 6 months. They also want to understand how quality of life, thinking skills, and attitudes toward medication affect adherence.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Study contacts

  • Contact

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

  • Contact

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

Locations

  • Institute of Oncology Ljubljana

    RECRUITING

    Ljubljana, 1000, Slovenia

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

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

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

aromatase inhibitors (letrozole, anastrozole, exemestane) with or without abemaciclib

What this could lead to

If successful, this study could reveal why some patients stop taking their breast cancer pills and help doctors improve long-term treatment adherence.

What could go wrong

This is an observational study, not a treatment trial. It will not test whether the drugs work better or worse, only how consistently patients take them.

Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm Her2-receptor negative breast cancer hormone receptor-positive breast cancer Medication Adherence

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.