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CompletedNCT07195864Updated Jun 22, 2026

Retrospective Chart Review of Patients With Acanthamoeba Keratitis Who Have Received 0.8 mg/mL Polihexanide as Part of the "Medicines in Special Situations" (Medicamentos en Situaciones Especiales) Program in Spain.

An observational study in Acanthamoeba Keratitis, sponsored by SIFI SpA. Completed at 5 sites in Spain. Open to participants aged 12 Years and older. Per ClinicalTrials.gov, last updated 2026-06-22.

Sponsored by SIFI SpA · Observational

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Study type
Observational
Model
Other
Time perspective
Retrospective
Enrollment
23
Ages
12 Years and older
Sex
All
01

Study summary

The study will be a multicentric, retrospective, non-interventional medical chart review of patients with AK who initiated a treatment with 0.8 mg/ml polihexanide as part of the Spanish Medicines in Special Situations program, whether they fully completed the treatment or not.

Baseline date is defined as the date of 0.8 mg/ml polihexanide initiation. The Study Period for each patient will be considered the period from the baseline to the conclusion of the treatment.

Read the detailed description

Primary objective:

  • To describe the efficacy of 0.8 mg/ml polihexanide in the clinical resolution of AK in all patients that satisfy the inclusion criteria of the study, as measured by the proportion of patients cured at the end of the study period, confirmed at the 30-day follow-up (when available).

Secondary objectives:

  • To describe the efficacy of 0.8 mg/ml polihexanide in the clinical resolution of AK in full compliant patients.
  • To describe the efficacy of 0.8 mg/ml polihexanide in the improvement of visual acuity (VA).
  • To describe the efficacy of 0.8 mg/ml polihexanide in the improvement of ocular clinical findings.
  • To describe de efficacy of 0.8 mg/ml polihexanide in the reduction of pain.
  • To determine the rate of patients requiring ocular surgery.
  • To determine the rate of patients using topical ophthalmologic steroids or other relevant medications.
  • To determine the time from start of treatment until clinical resolution.
  • To determine the proportion of patients with concomitant fungal or bacterial corneal infections.
  • To describe the efficacy of 0.8 mg/ml polihexanide in preventing disease relapse.
02

Conditions studied

  • Acanthamoeba Keratitis

Keywords

  • Acanthamoeba Keratitis PHMB
03

In context

Lead sponsor

SIFI SpA is the lead sponsor of 19 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
12 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

The study population for this study is patients diagnosed with AK treated with 0.8 mg/ml polihexanide as part of the Spanish Medicines in Special Situations program.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Participation in the Spanish Medicines in Special Situations (Gestión de Medicamentos en Situaciones Especiales) program from August 2022 to 31 October 2024, because they presented clinical signs and symptoms consistent with AK and the identification of Acanthamoeba was confirmed by at least one of the following techniques:

o Confocal Microscopy o PCR o Identification by microbiological culture or cytological smear.

  • Diagnosis of AK at least 2 months before inclusion in the study
  • Age ≥12 years at the time of diagnosis.
  • To have started and completed the treatment with 0.8 mg/ml polihexanide at the moment of the inclusion.

Exclusion criteria

Exclusion Criteria:

  • No participation in another trial contemporary at this one
05

Study design

Observational model
Other
Time perspective
Retrospective
Enrollment
23 participants (actual)
Patient registry
No

Interventions

  • DrugPHMB 0.08%

    The study population for this study is patients diagnosed with AK treated with 0.8 mg/ml polihexanide as part of the Spanish Medicines in Special Situations program.

06

What researchers measure

Primary outcomes

  1. the proportion of patients cured at the end of the study period, confirmed at the 30-day follow-up (when available)

    The primary endpoint will be the proportion of patients cured at the end of the study period, confirmed at the 30-day follow-up (when available). The primary analysis will be performed on all patients that satisfy the inclusion criteria of the study

    Time frame: The end of the study period, confirmed at the 30-day follow-up (when available).

  2. The primary endpoint will be the proportion of patients cured at the end of the study period, confirmed at the 30-day follow-up (when available).

    The primary endpoint will be the proportion of patients cured at the end of the study period, confirmed at the 30-day follow-up (when available). The primary analysis will be performed on all patients that satisfy the inclusion criteria of the study.

    Time frame: he end of the study period, confirmed at the 30-day follow-up (when available).

07

Study locations

5 sites
  • HU La Paz
    Madrid, Madrid, Spain
  • IO Fernandez Vega
    Madrid, Madrid, Spain
  • CHUO Ourense
    Ourense, Ourense, Spain
  • HU Ramon y Cajal
    Madrid, Principality of Asturias, Spain
  • Hospital la Fé
    Valencia, Valencia 46026, Spain
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Oct 2025 to primary completion in Jun 2026, 7 months.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 2, 2025
First posted
Sep 29, 2025
StartActual
Oct 30, 2025
Primary completionActual
Jun 11, 2026
CompletionActual
Jun 11, 2026
Last update
Jun 22, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 22, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07195864
Lead sponsor
SIFI SpA
Responsible party
Sponsor
First posted
Sep 29, 2025
Start date
Oct 30, 2025
Primary completion
Jun 11, 2026
Completion
Jun 11, 2026
Last update
Jun 22, 2026

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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