Evaluation of Tears Naturale® Free and Tears Naturale® II Lubricant Eye Drops

August 24, 2026 updated by: Alcon Research

Evaluation of the Safety and Effectiveness of Tears Naturale® Free and Tears Naturale® II Lubricant Eye Drops in Subjects With Dry Eye Disease

The purpose of this post-market clinical follow-up (PMCF) study is to describe the effectiveness and safety of Tears Naturale® Free and Tears Naturale® II lubricant eye drops in subjects experiencing dry eye (DE) symptoms.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Each subject's participation will last approximately 30 days and include three scheduled visits: a screening/baseline clinic visit on Day 1 (Visit 1), a telephone follow-up visit on Day 15 (-2/+5 days) (Visit 2), and an in-office visit on Day 30 (-2/+5 days) (Visit 3).

This study will be conducted in Canada.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
120

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Canada
    • British Columbia
      • Burnaby, British Columbia, Canada, V5E 1G3
        • Integra Eyecare Centre
      • Kelowna, British Columbia, Canada, V1Y 4N7
        • The Medical Arts Health Research Group
    • Ontario
      • North York, Ontario, Canada, M2N 3A1
        • Eyes on Sheppard
      • Toronto, Ontario, Canada, M5R 2A5
        • Dr. Shalu Pal & Associates
    • Quebec
      • Boisbriand, Quebec, Canada, J7H 0E8
        • Institut De L'Oeil Des Laurentides
      • Chicoutimi, Quebec, Canada, G7H 7W8
        • Hopital de Chicoutimi and LASIK MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Key Inclusion Criteria:

  • Able to read, understand, and sign an Institutional Review Board (IRB)/Independent Ethics Committee (IEC) approved informed consent form in English or French.
  • Able to attend all study visits as required as per protocol.
  • Mild to moderate dry eye disease.
  • Willing to discontinue use of all habitual artificial tear supplements and use only the study device for the entire study duration.
  • Other protocol-defined inclusion criteria may apply.

Key Exclusion Criteria:

  • Any known allergic reactions to the study products or its ingredients.
  • Ocular injury to either eye in the past 3 months prior to screening.
  • Ocular surgery within the previous 6 months or ocular surgery planned during the study.
  • Use of any systemic medication known to cause dry eye for less than 1 month before the Screening/Baseline visit.
  • Other protocol-defined exclusion criteria may apply.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Tears Naturale Free
One to two drops of artificial tears per eye as needed for 30 days (-2/+5 days)
Other: Tears Naturale Free lubricating eye drops
Commercially available, preservative free, artificial tear product containing dextran 70 and hypromellose. Artificial tear products are designed to relieve dryness and irritation by supplementing and stabilizing the tear film.
Experimental: Tears Naturale II
One to two drops of artificial tears per eye as needed for 30 days (-2/+5 days)
Other: Tears Naturale II lubricating eye drops
Commercially available, artificial tear product containing dextran 70 and hypromellose with a gentle preservative for multi-dose use. Artificial tear products are designed to relieve dryness and irritation by supplementing and stabilizing the tear film.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Mean Impact of Dry Eye on Everyday Life - Symptom Bother Module (IDEEL - SB) Score
Time Frame: Screening/Baseline Visit (Day 1), Day 30
The IDEEL SB module is a 20-question, patient-reported outcome questionnaire that assesses the subject's symptoms of dry eye. For each question, the subject selected a single response for both eyes, where 0="None of the time" (Q1) or "I did not have this symptom/Not Applicable" (Q2-20) to 4="All of the time" (Q1) or "Very Much" (Q2-20). The overall Symptom Bother score is calculated as the mean value of the non-missing item scores (Q1-20) multiplied by 25, for an overall resultant score ranging from 0 to 100. Higher scores indicate greater symptom bother.
Screening/Baseline Visit (Day 1), Day 30

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Alcon Research

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Clinical Trial Lead, Dry Eye, Alcon Research, LLC

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 4, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 1, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 1, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 15, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 15, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 21, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 25, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 24, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
June 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • LCC222-I001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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