Could a new drug combo prevent liver failure after tylenol overdose?

NCT ID NCT05517668

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study tested whether adding fomepizole to the standard treatment (N-acetylcysteine) could better protect the liver in people who took too much acetaminophen (Tylenol). The trial included 29 adults and children aged 10 and older who were at high risk for liver injury. The goal was to see if the combination reduced liver damage more than standard care alone.

What this could mean

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

Active substance

Fomepizole (4-MP) given intravenously alongside standard N-acetylcysteine

What this could lead to

If it works, this could point toward a better treatment for acetaminophen overdose that reduces liver damage and shortens hospital stays.

What could go wrong

This was a small, early-phase trial that was terminated, so results are limited. The added benefit of fomepizole over standard care alone is uncertain and needs more study.

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.

Drug Overdose drug-induced liver injury liver failure paracetamol poisoning poisoning

As listed by the trial registrant

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

Contacts and locations

Locations

  • Denver Health and Hospital Authority

    Denver, Colorado, 80204, United States