ClinicalTrials.gg
Active, not recruitingNCT04685109ALHENAUpdated May 21, 2025

3 Month Study of Alocross Versus Vismed in Adults With Dry Eye Disease Related to Keratitis or Keratoconjunctivitis

An interventional study of Alocross 0.2% Unit Dose and Vismed in Dry Eye Syndromes, sponsored by Santen SAS. Active, not recruiting at 6 sites in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-05-21.

Sponsored by Santen SAS (part of Santen Pharmaceutical Co., Ltd.) · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
80
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study is a prospective, multicentre, parallel-group, active-controlled, non-inferiority study conducted in adult patients with moderate-to-severe dry eye disease (DED) related to keratitis or keratoconjunctivitis. This study is conducted at a national level, in France.

The patients will be randomised to receive ALOCROSS® or the reference treatment, VISMED® (ratio 1:1) in an investigator-masked fashion

Read the detailed description

Primary:

  • To compare the ocular efficacy of ALOCROSS® with that of VISMED® in patients with moderate to severe DED related to keratitis or keratoconjunctivitis after a 4-week treatment period (Day 28).

Secondary:

  • To compare the ocular efficacy of ALOCROSS® with that of VISMED® in patients with moderate to severe DED related to keratitis or keratoconjunctivitis over a 12-week treatment period
  • To evaluate the ocular tolerability and safety of ALOCROSS® versus VISMED® in patients with moderate to severe DED related to keratitis or keratoconjunctivitis throughout the duration of treatment
02

Conditions studied

  • Dry Eye Syndromes

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03

In context

Dry Eye Syndromes

1,366 studies on the registry are indexed under Dry Eye Syndromes; 207 are open to participants now.

This study's planned enrollment of 80 is above the median of 60 across 1,129 interventional studies indexed under Dry Eye Syndromes.

Browse Dry Eye Syndromes studies →

Lead sponsor

Santen SAS is the lead sponsor of 14 studies on the registry; 2 are open to participants now.

First submitted after Santen Inc. became part of Santen Pharmaceutical Co., Ltd..

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

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

  • Patient eligibility is determined according to the following criteria:

    1. Male or female patient aged 18 years or above.
    2. Patient using artificial tears for at least 3 months prior to the Screening visit.
    3. Patient experiencing at least 2 symptoms of ocular discomfort rated ≥23 mm on the 0 to 100 mm visual analogue scale (VAS) (among itching, eye dryness, sticky feeling, photophobia, pain, burning or stinging, sandy feeling or grittiness, or foreign body sensation) at Screening and Baseline visits.
    4. OSS score (sum of nasal and temporal interpalpebral conjunctival and corneal vital staining) ≥4 and ≤9 on a modified Oxford scale at Screening and Baseline visits in at least one eye.
    5. TBUT of ≤10 seconds at Screening and Baseline visits and/or Schirmer's tear test of ≥3 and ≤9 mm/5 min at Screening visit in the same eye that fulfil inclusion criteria #4.
    6. The patient has signed and dated a written form prior to the initiation of any study procedures.

Exclusion criteria

Exclusion Criteria:

  • Any patient who meets any of the following criteria (in any eye) will not qualify for entry into the study:

Ocular

  1. CFS score ≥4 on a modified Oxford scale
  2. Ocular hypertension or glaucoma requiring IOP-lowering medication(s)
  3. History of ocular trauma, infection or ocular inflammatory condition within the last 3 months before the screening visit.
  4. Severe blepharitis and/or severe meibomian gland disease
  5. Filamentary keratitis
  6. Any ocular surface anomaly not related to DED
  7. Active ocular infection or history of ocular allergy or ocular herpes
  8. Patient with only one sighted eye or with a best corrected distance visual acuity ≤1/10
  9. Use of any topical ocular treatment other than study device during the study (all non-study topical ocular treatment(s) must be stopped at the screening visit)
  10. Onset of lid hygiene (whatever the method) less than 2 months before the Screening visit
  11. Use of topical one month before the Screening Visit
  12. Use of isotretinoin, ciclosporin, tacrolimus, sirolimus, pimecrolimus or ocular cauterisation procedures 2 months before the screening visit and throughout the study
  13. Use of VISMED® within 6 weeks prior to the screening visit
  14. Refractive surgery (e.g. LASIK, LASEK, PRK) within 6 months and/or any other ocular laser/surgery within 3 months prior to the screening visit and during the study
  15. Insertion of temporary punctal plug(s) within 2 months prior to the Screening visit or permanent occlusion of lacrimal puncta on one or both sides
  16. Known to any of the components of the study device or products Non-ocular
  17. History of severe systemic allergy
  18. Systemic disease not stabilised within 1 month prior to the screening visit (e.g. diabetes with glycaemia out of range, thyroid dysfunction) or judged by the investigator to be incompatible with the conduct of the study procedures or the interpretation of the study results
  19. Any change of systemic concomitant medication within the month before the screening visit or planned change during the study period, except paracetamol
  20. Pregnancy or lactation at the screening and/or Baseline visit.
  21. Women of not using a medically acceptable, highly effective method of (such as hormonal implants, injectable or oral contraceptives together with condoms, some intrauterine devices, sexual abstinence or vasectomised partner) from the Baseline visit throughout the conduct of the study treatment periods and up to 2 weeks after the study end. women (two years without menstruation) do not need to use any method of birth control.
  22. Participation in a clinical trial with an investigational substance within the past 30 days prior to Baseline visit.
  23. Participation in another clinical study at the same time as the present study.
Terms in these criteria, in plain language(7)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
80 participants (estimated)

Study arms

  • Experimental
    Alocross

    Cross-linked HA 0.2% + Aloe Vera 0.1% solution (N=40) Posology: One Drop in each eye 4 times daily for 84 days

    Device: Alocross 0.2% Unit Dose

  • Active comparator
    Vismed

    HA 0.18% hyaluronic solution (N40) Posology: One Drop in each eye 4 times daily for 84 days

    Device: Vismed

Interventions

  • DeviceAlocross 0.2% Unit Dose

    Eye Drops

  • DeviceVismed

    Eye drops

    Also known as: HA 0.18% hypotonic solution

06

What researchers measure

Primary outcomes

  1. Change of ocular surface staining (OSS) score between baseline and Day 28.

    The primary endpoint of the study is the difference between patients treated with ALOCROSS® and patients treated with VISMED® in the change of ocular surface staining (OSS) score between baseline and D28. An OSS higher than 0 is considered to be abnormal and may be a sign of KCS. But scores of 1 or 2 can also represent a late staining artifact if interpretation of the fluorescein corneal staining pattern is delayed beyond 8 minutes. Because this could lead to a high level of misclassification, an abnormal OSS is defined as being a score of 3 or above.

    Time frame: Between Baseline and day 28

Secondary outcomes

  1. Change of ocular surface staining (OSS) score between baseline and Day 84

    The difference between patients treated with ALOCROSS® and patients treated with VISMED® in change of OSS score between baseline and Day 84. An OSS higher than 0 is considered to be abnormal and may be a sign of KCS. But scores of 1 or 2 can also represent a late staining artifact if interpretation of the fluorescein corneal staining pattern is delayed beyond 8 minutes. Because this could lead to a high level of misclassification, an abnormal OSS is defined as being a score of 3 or above.

    Time frame: between baseline and Day 14 and between baseline and Day 84

  2. The change of ocular stainings (corneal fluorescein staining (CFS) and clearing and conjunctival staining) between baseline and Day 28 and between baseline and Day 84

    The difference between patients treated with ALOCROSS® and patients treated with VISMED® in change of ocular stainings (corneal fluorescein staining (CFS) and clearing and conjunctival staining) Staining using fluorescein will be graded using the modified Oxford scale (7-point ordinal scale, score 0, 0.5, and 1 to 5 per area \[cornea + nasal and temporal conjunctiva\]) for cornea and conjunctiva separately, On this modified scale, the score 0 corresponds to no staining dots and the score 0.5 corresponds to one staining dot per area. A CFS grade of 0 represents complete corneal clearing.

    Time frame: between baseline and Day 28 and between baseline and Day 84

  3. The change of ocular discomfort symptoms on Visual Analogue Scale

    The difference between patients treated with ALOCROSS® and patients treated with VISMED® in the change of ocular discomfort symptoms according to the Visual Analogue Scale (VAS) Patient experiencing at least 2 symptoms of ocular discomfort rated ≥23 mm on the 0 to 100 mm visual analogue scale (VAS) (among itching, eye dryness, sticky feeling, photophobia, pain, burning or stinging, sandy feeling or grittiness, or foreign body sensation) at Screening and Baseline visits.

    Time frame: between baseline and Day 28 and between baseline and Day 84

  4. The change tear breakup time (TBUT)

    The difference between patients treated with ALOCROSS® and patients treated with VISMED® in the change of tear breakup time (TBUT) Generally, \>10 seconds is thought to be normal,(10, 11, 12) 5 to 10 seconds, marginal, and \< 5 seconds is considered low. A short tear break-up time is a sign of a poor tear film and the longer it takes the more stable the tear film.

    Time frame: between baseline and Day 28 and between baseline and Day 84

  5. The change in Schirmer's tear test

    The difference between patients treated with ALOCROSS® and patients treated with VISMED® in the change of Schirmer's tear test Healthy eyes are considered to leave each strip of paper containing more than 10 millimeters of moisture. Less than 10 millimeters of moisture indicates probable dry eye syndrome.

    Time frame: between baseline and Day 28 and between baseline and Day 84

  6. The secondary endpoints are the difference between patients treated with ALOCROSS® and patients treated with VISMED® in:

    The overall efficacy evaluation of the investigator The study investigator at each centre will conduct an overall assessment of the effect of the study device on improvement in the patients DED using the following rating scale: * 0 = Unsatisfactory * 1 = Not very satisfactory * 2 = Satisfactory * 3 = Very satisfactory

    Time frame: after 12 weeks of treatment (84 days)

  7. The difference between patients treated with ALOCROSS® and patients treated with VISMED® in:

    The change of subjective assessments evaluation by the patient. The patient will rate his global evaluation of efficacy using the same rating scale as the Investigator. The patients complete a subjective assessment of the effect of the study device on improvement in their DED using the following rating scale: * 0 = Unsatisfactory * 1 = Not very satisfactory * 2 = Satisfactory * 3 = Very satisfactory

    Time frame: between baseline and Day 84

07

Study locations

6 sites
08

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 21, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04685109
Lead sponsor
Santen SAS
Responsible party
Sponsor
First posted
Dec 28, 2020
Start date
May 11, 2021
Primary completion
Sep 30, 2026 (estimated)
Completion
Sep 30, 2026 (estimated)
Last update
May 21, 2025

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 active, not recruiting, as verified in May 2025. You cannot join it, but the record below documents what was studied.

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