Pain study pulled before it even started

NCT ID NCT04756791

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study aimed to compare two ways of numbing the chest after a mastectomy: a targeted nerve block versus direct injection into the surgical area. It was planned for adults aged 18-80 undergoing unilateral mastectomy. However, the trial was withdrawn before enrolling any participants, so no results are available.

What this could mean

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

Active substance
ropivacaine
What this could lead to
If it had succeeded, this could have pointed to a better way to manage pain after mastectomy, possibly reducing opioid use.
What could go wrong
The trial was withdrawn before enrolling anyone, so no data exist. Even if run, it was a small, early comparison with uncertain real-world benefit.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • UZ Brussel

    Jette, Brussels Capital, 1090, Belgium

More trials for these conditions

Other studies related to the condition(s) this trial covers.