Hope for rare eye infection: polihexanide shows promise in small study

NCT ID NCT06641882

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks back at medical records of 40 people with acanthamoeba keratitis, a rare but serious eye infection. All patients received 0.8 mg/ml polihexanide eye drops as part of a compassionate use program. Researchers want to see how many patients were cured, defined as having a clear cornea, no significant inflammation, and no need for surgery.

What this could mean

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

Active substance
polihexanide 0.8 mg/ml eye drops
What this could lead to
If successful, this could confirm that polihexanide is an effective treatment for acanthamoeba keratitis, potentially reducing the need for surgery.
What could go wrong
This is a small, retrospective chart review with only 40 patients, not a controlled trial. Results may not apply to all patients, and the definition of cure is limited to short-term outcomes.

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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

  • ASST Fatebenefratelli Sacco

    Milan, Milano, 20157, Italy

  • ASST Spedali Civili

    Brescia, Brescia, 25121, Italy

  • AZIENDA ULSS 3 Serenissima-UOC Oculistica

    Venice, Italy, 6777, Italy

  • Azienda Ospedaliera Universitaria Verona

    Verona, Verona, 37126, Italy

  • IRCCS Ospedale San Raffaele

    Milan, Italy, 20132, Italy

  • Policlinico G.Martino

    Messina, Messina, 98124, Italy

  • Policlinico S. Matteo

    Pavia, Pavia, 27100, Italy

  • Policlinico TorVergata

    Rome, Rome, 00133, Italy

  • Policlinico Universitario Campus Biomedico

    Rome, Rome, 00133, Italy

  • SOD Oculistica Azienda Ospedaliero Universitaria Careggi

    Florence, Italy, 50134, Italy

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