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NCT Number: NCT06533995

The Usefulness of Visuprime in Cataract Surgery

This is a multicentre, post-market, open label, randomized, placebo-controlled prospective study exploring the performance of Visuprime in improving ocular surface homeostasis and reducing conjunctival bacterial load in patients receiving cataract surgery, as an addon treatment to postoperative standard terapy. The study will consist on 3 visits: Visit 1 (day -3 from surgery), Visit 2 (day 0, surgery), and Visit 3 (day 7 from surgery). Patients will be enrolled after having signed the informed consent form prior to any other study procedure and after inclusion/exclusion criteria check. At each visit all study procedures will be performed according to the clinical investigation plan requirements. Patients will be enrolled at Visit 1 and randomized with a 1:1 ratio to 2 groups:

GROUP A: patients receiving Visuprime eyedrop BID from day -3 to week 1. After surgery, patients will be also given standard postoperative treatment consisting on unitdose desametasone eyedrop + levofloxacin eyedrop, both given four times daily (QID) from day 0 (after surgery) to the end of the study.

GROUP B: patients receiving placebo eyedrop (the vehicle of Visuprime, i.e. isotonic buffered saline solution) BID from day -3 to week 1.

After surgery, patients will be also given standard postoperative treatment consisting on unitdose desametasone eyedrop QID + levofloxacin eyedrop QID from day 0 to the end of the study.

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Key information

Conditions

Cataract Eye Diseases Lens Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Clinica Fabia Mater, Rome, RM, Italy

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • At least 18 years old patients, male and female
  • Previous diagnosis of cataract requiring surgery
  • Wishing to participate in the study and able to sign the ICF
  • No topic ophthalmic medication, including lubricating eyedrops administration for at least 4 days before screening visit.

Exclusion criteria

  • Other clinically significant and uncontrolled pathologies that may interfere with study results (e.g.rheumatic disease)
  • Previous participation on this study for the fellow eye
  • Increased risk of complicated cataract surgery according to the investigator assessment (for example presence of dilation less than 6 mm, pupil decentration, pseudoexfoliation, areas of iris atrophy, sublussation or lussation of the lens, complete cataract, sac instability, iridodonesis, systemic disease limiting intraoperative patient cooperation)
  • Coexisting corneal diseases
  • Past or active conjunctivitis - any type
  • Past ocular surface burns
  • Keratinization of the eyelid margin
  • Sjogren syndrome
  • History of corneal trauma
  • Pregnant and lactating women
  • Inability to self-administer study medications
  • Know allergic sensitivity to any of the devices ingredients, or any other type of allergy
  • Participation in a clinical trial during the 3 months prior to the beginning of the study.

Treatment and study plan

VISUPRIME

Device

Visuprime is a medical device (class IIa sterile) with ophtalmic indication, consisting on a 10 ml multidose bottle

Placebo

Other

placebo eyedrop isotonic buffered saline solution

Primary outcomes

  1. TBUT (Tear-Break-Up-Time)

    Time frame: V1 (Day -3 from surgery),V2 (Day 0, surgery), V3 (Day 7 after surgery)

    To evaluate the performance of the Visuprime, used in improving ocular surface homeostasis in patients receiving cataract surgery, fluorescein tear break-up time will be measured and compared in the two groups at each visit.

  2. TBUT (Tear-Break-Up-Time)

    Time frame: V3-V1 (ten days) , V2-V1(three days)

    To evaluate the performance of the Visuprime, used in improving ocular surface homeostasis in patients receiving cataract surgery, the difference in the change of Tear Break-Up Time test will be analyzed between two treatment groups at V3 compared to V1 and at V2 compared to V1.

Secondary outcomes

  1. Ocular Surface Disease Index (OSDI)

    Time frame: V1 (Day -3 from surgery), V2 (Day 0, surgery), V3 (Day 7 after surgery)

    Ocular Surface Disease Index will be measured at each visit and compared between the two groups.

    The final score is calculated which ranges from 0 to 100 with scores 0 to 12 representing normal, 13 to 22 representing mild dry eye disease, 23 to 32 representing moderate dry eye disease, and greater than 33 representing severe dry eye disease.

  2. Ocular Surface Disease Index (OSDI)

    Time frame: V3-V1(ten days), V2-V1(three days)

    The difference in the change of Ocular Surface Disease Index will be analyzed between two treatment groups at V3 compared to V1 and V2 compared to V1.

    The final score is calculated which ranges from 0 to 100 with scores 0 to 12 representing normal, 13 to 22 representing mild dry eye disease, 23 to 32 representing moderate dry eye disease, and greater than 33 representing severe dry eye disease.

  3. Instantaneous Non-Invasive Break-up time (iNIBUT)

    Time frame: V1 (Day -3 from surgery), V2 (Day 0, surgery), V3 (Day 7 after surgery)

    Instantaneous Non-Invasive Break-up time will be measured at each visit and compared between the two groups.

  4. Instantaneous Non-Invasive Break-up time (iNIBUT)

    Time frame: V3-V1(ten days), V2-V1(three days)

    The difference in the change of Instantaneous Non-Invasive Break-up time will be analyzed between two treatment groups at V3 compared to V1 and V2 compared to V1.

  5. mean Non-Invasive Break-up time (mNIBUT)

    Time frame: V1 (Day -3 from surgery), V2 (Day 0, surgery), V3 (Day 7 after surgery)

    mean Non-Invasive Break-up time will be measured at each visit and compared between the two groups.

  6. mNIBUT (mean NIBUT)

    Time frame: V3-V1(ten days), V2-V1(three days)

    The difference in the change of mean Non-Invasive Break-up time will be analyzed between two treatment groups at V3 compared to V1 and V2 compared to V1.

  7. Tear meniscus height (TMH)

    Time frame: V1 (Day -3 from surgery), V2 (Day 0, surgery), V3 (Day 7 after surgery)

    Tear meniscus height will be measured at each visit and compared between the two groups.

    The Tear Meniscus Height is a measurement used to assess the volume of the tear film on the ocular surface useful in diagnosing dry eye conditions.

    Tear Meniscus Height is assessed with Slit-lamp Biomicroscopy. Generally, the normal tear meniscus height is about 0.2-0.4 mm. Values below 0.2 mm often indicate a reduced tear volume, commonly associated with dry eye disease.

  8. Tear meniscus height (TMH)

    Time frame: V3-V1 (ten days), V2-V1(three days)

    The difference in the change of Tear meniscus height will be analyzed between two treatment groups at V3 compared to V1 and V2 compared to V1.

    The Tear Meniscus Height is a measurement used to assess the volume of the tear film on the ocular surface useful in diagnosing dry eye conditions.

    Tear Meniscus Height is assessed with Slit-lamp Biomicroscopy. Generally, the normal tear meniscus height is about 0.2-0.4 mm. Values below 0.2 mm often indicate a reduced tear volume, commonly associated with dry eye disease.

  9. Conjunctival hyperemia

    Time frame: V1 (Day -3 from surgery), V2 (Day 0, surgery), V3 (Day 7 after surgery)

    Conjunctival hyperemia will be measured at each visit and compared between the two groups. This parameter will be automatically graded by Keratograph according to Efron et al.:0, normal; 1, trace; 2, mild; 3, moderate.

  10. Corneal staining

    Time frame: V1 (Day -3 from surgery), V2 (Day 0, surgery), V3 (Day 7 after surgery)

    Corneal staining according to Oxford Scale will be measured at each visit and compared between the two groups.

    The Oxford grading scale divides corneal staining into six groups according to severity from 0 (absent) to 5 (severe). The examiner compares the overall appearance of the patient's corneal staining with a reference figure, simulating the pattern of staining encountered in dry eye disease.

  11. Bacterial Load

    Time frame: V1 (Day -3 from surgery), V2 (Day 0, surgery), V3 (Day 7 after surgery)

    Conjunctival samples collected at visit 1, visit 2 and visit 3 will be analysed to determine bacterial load which will be compared in the two study groups.

  12. VAS (Visual Analogue Scale)

    Time frame: V1 (Day -3 from surgery), V2 (Day 0, surgery), V3 (Day 7 after surgery)

    To evaluate the safety and tolerability of the Visuprime a Visual Analogue Scale will be used for overall drop comfort and ease of instillation, with the score ranges from 0 worse to 10 better and for burning and blurred vision with the score ranges from 0 better to 10 worse. These parameters will be compared in the two groups at each visit.

  13. 5-point Likert Scale

    Time frame: V1 (Day -3 from surgery), V2 (Day 0, surgery), V3 (Day 7 after surgery)

    The patient satisfaction will be evaluated with a 5-point Likert Scale. The score ranges from 0 worse to 10 better.

    This parameter will be compared in the two groups at each visit.

Sponsors and collaborators

Lead sponsor

VISUfarma SpA

Industry

Registry information

Official study title

The Performance of Visuprime in Improving Ocular Surface Homeostasis and Reducing Conjunctival Bacterial Load in Patients Receiving Cataract Surgery

Important dates

Study start
2021
Primary completion
2022
Study completion
2022
First posted
Aug 1, 2024
Registry last updated
Aug 1, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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