Breast cancer drug combo safety study ends early – only 4 patients enrolled

NCT ID NCT04967248

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This was an observational study that planned to track side effects, especially high blood sugar, in patients taking alpelisib (Piqray) plus fulvestrant for a type of advanced breast cancer. It included postmenopausal women and men whose cancer had a specific gene mutation (PIK3CA) and had worsened after hormone therapy alone. However, the study was terminated early after enrolling only 4 participants, so it provides very limited information.

What this could mean

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

Active substance

alpelisib (Piqray) and fulvestrant

What this could lead to

If successful, this study could provide real-world safety data on alpelisib combined with fulvestrant for advanced breast cancer patients.

What could go wrong

The study was terminated early with only 4 participants, so results are very limited and may not be reliable or generalizable.

Disclaimer Read more

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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Conditions

The condition(s) this trial relates to.

breast neoplasm hormone receptor-positive breast cancer

As listed by the trial registrant

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