Trial to Evaluate the Safety and Efficacy of TP-03 for the Treatment of Demodex Blepharitis (Saturn-2)
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ClinicalTrials.gov Identifier: NCT04784091 |
Recruitment Status :
Completed
First Posted : March 5, 2021
Last Update Posted : December 2, 2022
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Condition or disease | Intervention/treatment | Phase |
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Blepharitis | Drug: TP-03 Drug: TP-03 Vehicle | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 412 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | Active arm: TP-03, 0.25% Control arm: Vehicle of TP-03 |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Masking Description: | Treatment assignment will be unknown to the study participant, investigators and site staff performing study assessments. |
Primary Purpose: | Treatment |
Official Title: | Randomized, Controlled, Multicenter, Double-Masked, Parallel, Phase 3 Trial to Evaluate the Safety and Efficacy of TP-03 for the Treatment of Demodex Blepharitis |
Actual Study Start Date : | April 29, 2021 |
Actual Primary Completion Date : | May 9, 2022 |
Actual Study Completion Date : | May 9, 2022 |
Arm | Intervention/treatment |
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Experimental: Active
TP-03, lotilaner ophthalmic solution, 0.25%, administered topically twice a day for approximately 43 days
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Drug: TP-03
TP-03, lotilaner ophthalmic solution, 0.25%, administered twice a day |
Placebo Comparator: Control
Vehicle of TP-03 ophthalmic solution, administered topically twice a day for approximately 43 days
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Drug: TP-03 Vehicle
Vehicle of TP-03 ophthalmic solution, administered twice a day |
- The proportion of participants cured based on their collarette score [ Time Frame: 43 days ]
- The proportion of participants with their Demodex mites eradicated [ Time Frame: 43 days ]
- The proportion of participants cured based on a composite of collarette score and erythema score [ Time Frame: 43 days ]
- The proportion of participants cured based on erythema score [ Time Frame: 43 days ]

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Be willing to sign the informed consent and deemed capable of complying with the requirements of the study protocol
- Meet all of the following criteria in at least one eye: Have more than 10 lashes with collarettes present on the upper lid; have at least mild erythema of the upper eyelid margin; have an average Demodex density, upper and lower eyelids combined, of 1.5 or more mites per lash
Exclusion Criteria:
- Have used lid hygiene products within 14 days of Screening or unwilling to forego the use of lid hygiene products during the study
- Have used a prostaglandin analogue to promote eyelash growth within 30 days of Screening or any plans to initiate treatment during the study
- Have used artificial eyelashes or eyelash extensions within 7 days of Screening or be unwilling to forego their use during the study
- Be pregnant or lactating at the time of Screening

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04784091

Principal Investigator: | John Meyer, MD | The Eye Care Institute |
Responsible Party: | Tarsus Pharmaceuticals, Inc. |
ClinicalTrials.gov Identifier: | NCT04784091 |
Other Study ID Numbers: |
TRS-010 |
First Posted: | March 5, 2021 Key Record Dates |
Last Update Posted: | December 2, 2022 |
Last Verified: | November 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Demodex |
Blepharitis Eyelid Diseases Eye Diseases |