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Clinical Trial to Evaluate the Efficacy of OC-02 Nasal Spray on Signs and Symptoms of Dry Eye Disease (The PEARL Study)

Multicenter, Randomized, Controlled, Double-Masked Clinical Trial to Evaluate the Efficacy of OC-02 Nasal Spray on Signs and Symptoms of Dry Eye Disease (The PEARL Study)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03452397
Enrollment
165
Registered
2018-03-02
Start date
2018-02-27
Completion date
2018-04-27
Last updated
2021-12-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dry Eye Disease

Brief summary

The objective of this study is to evaluate the safety and effectiveness of OC-02 Nasal Spray as compared to placebo on signs and symptoms of dry eye disease.

Detailed description

This was a Phase 2, multicenter, randomized, double-masked, placebo controlled study designed to evaluate the safety and efficacy of OC 02 Nasal Spray in adult participants with dry eye disease. Approximately 160 subjects, at least 22 years of age, with a subject-reported history of dry eye disease and meeting all other study eligibility criteria were planned to be randomized to receive an application of OC-02 or placebo at Visit 1 and Visit 2.

Interventions

Placebo (vehicle) nasal spray

DRUG0.2 % hemigalactarate (0.11% free base) 0.2 % OC-02 Low Dose (1.1 mg/mL)

0.2 % hemigalactarate (0.11% free base) 0.2 % OC-02 Low Dose (1.1 mg/mL)

DRUG1.0 % hemigalactarate (0.11% free base) 1.0 % OC-02 Mid Dose (5.5 mg/mL)

1.0 % hemigalactarate (0.11% free base) 1.0 % OC-02 Mid Dose (5.5 mg/mL)

DRUG2.0 % hemigalactarate (0.11% free base) 2.0 % OC-02 High Dose (11.1 mg/mL)

2.0 % hemigalactarate (0.11% free base) 2.0 % OC-02 High Dose (11.1 mg/mL)

Sponsors

Oyster Point Pharma, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
22 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Have used and/or desired to use an artificial tear substitute for dry eye symptoms within 6 months prior to Visit 1

Exclusion criteria

* Have had any intraocular surgery (such as cataract surgery), extraocular surgery (such as blepharoplasty) in either eye within three months or refractive surgery within twelve months of Visit 1 * Have a history or presence of any ocular disorder or condition in either eye that would, in the opinion of the Investigator, likely interfere with the interpretation of the study results or participant safety such as significant corneal or conjunctival scarring; pterygium or nodular pinguecula; current ocular infection, conjunctivitis, or inflammation not associated with dry eye; anterior (epithelial) basement membrane corneal dystrophy or other clinically significant corneal dystrophy or degeneration; ocular herpetic infection; evidence of keratoconus; etc. Blepharitis not requiring treatment and mild meibomian gland disease that are typically associated with DED are allowed. * Have a systemic condition or disease not stabilized or judged by the Investigator to be incompatible with participation in the study or with the lengthier assessments required by the study (e.g., current systemic infection, uncontrolled autoimmune disease, uncontrolled immunodeficiency disease, history of myocardial infarction or heart disease, etc.) * Have a known hypersensitivity to any of the procedural agents or study drug components * Have any condition or history that, in the opinion of the investigator, may interfere with study compliance, outcome measures, safety parameters, and/or the general medical condition of the subject

Design outcomes

Primary

MeasureTime frameDescription
Schirmer's Test Score at Day 1Day 1 (Pre to Post-Treatment Change)The primary endpoint was the change in anesthetized Schirmer's Test Score (STS) from baseline to Day 1. Change in Schirmer test score pre to post treatment. The Schirmer's test measures the amount of tears produced by placing a paper strip in the eye for 5 minutes and distance of wetting was recorded. Schirmer's test scores from 0-35 mm where a higher score is indicative of a better outcome.
Eye Dryness Score at Visit 2Day 15 (Pre to Post-Treatment Change)Change in Eye Dryness score from baseline to Day 15. Eye dryness score on a Visual Analogue Scale (VAS) from 0 (no discomfort) to 100 (maximum discomfort) millimeters where a lower score is indicative of a better outcome.

Countries

United States

Participant flow

Participants by arm

ArmCount
0.2 % Hemigalactarate (0.11% Free Base) 0.2 % OC-02 Low Dose (1.1 mg/mL)
0.2 % hemigalactarate (0.11% free base) 0.2 % OC-02 Low Dose (1.1 mg/mL)
41
1.0 % Hemigalactarate (0.11% Free Base) 1.0 % OC-02 Mid Dose (5.5 mg/mL)
1.0 % hemigalactarate (0.11% free base) 1.0 % OC-02 Mid Dose (5.5 mg/mL)
41
2.0 % Hemigalactarate (0.11% Free Base) 2.0 % OC-02 High Dose (11.1 mg/mL)
2.0 % hemigalactarate (0.11% free base) 2.0 % OC-02 High Dose (11.1 mg/mL)
41
Placebo (Vehicle) Nasal Spray
Placebo (vehicle) nasal spray Placebo (vehicle) nasal spray: Placebo (vehicle) nasal spray
42
Total165

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdministrative reason0011
Overall StudyAdverse Event1000
Overall StudyWithdrawal by Subject0010

Baseline characteristics

CharacteristicTotalPlacebo (Vehicle) Nasal Spray2.0 % Hemigalactarate (0.11% Free Base) 2.0 % OC-02 High Dose (11.1 mg/mL)0.2 % Hemigalactarate (0.11% Free Base) 0.2 % OC-02 Low Dose (1.1 mg/mL)1.0 % Hemigalactarate (0.11% Free Base) 1.0 % OC-02 Mid Dose (5.5 mg/mL)
Age, Continuous63.9 years
STANDARD_DEVIATION 10.97
64.4 years
STANDARD_DEVIATION 11.76
62.7 years
STANDARD_DEVIATION 9.3
64.4 years
STANDARD_DEVIATION 11.8
64.0 years
STANDARD_DEVIATION 11.15
Race/Ethnicity, Customized
American Indian Alaskan Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Asian
3 Participants0 Participants0 Participants1 Participants2 Participants
Race/Ethnicity, Customized
Black/African American
11 Participants3 Participants3 Participants3 Participants2 Participants
Race/Ethnicity, Customized
Hispanic/Latino
3 Participants2 Participants0 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Multiple races
1 Participants0 Participants1 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Not Hispanic/Latino
161 Participants39 Participants41 Participants41 Participants40 Participants
Race/Ethnicity, Customized
Not reported
1 Participants1 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Other
0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
White
150 Participants39 Participants37 Participants37 Participants37 Participants
Region of Enrollment
United States
165 participants42 participants41 participants41 participants41 participants
Sex: Female, Male
Female
118 Participants34 Participants31 Participants24 Participants29 Participants
Sex: Female, Male
Male
47 Participants8 Participants10 Participants17 Participants12 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 410 / 410 / 410 / 42
other
Total, other adverse events
17 / 4123 / 4124 / 414 / 42
serious
Total, serious adverse events
1 / 410 / 410 / 410 / 42

Outcome results

Primary

Eye Dryness Score at Visit 2

Change in Eye Dryness score from baseline to Day 15. Eye dryness score on a Visual Analogue Scale (VAS) from 0 (no discomfort) to 100 (maximum discomfort) millimeters where a lower score is indicative of a better outcome.

Time frame: Day 15 (Pre to Post-Treatment Change)

Population: Subjects in the ITT Population. Only Subjects who had both pre-treatment and post-treatment values were utilized in the change from pre-treatment statistics

ArmMeasureValue (LEAST_SQUARES_MEAN)
0.2 % Hemigalactarate (0.11% Free Base) 0.2 % OC-02 Low Dose (1.1 mg/mL)Eye Dryness Score at Visit 2-9.4 mm
1.0 % Hemigalactarate (0.11% Free Base) 1.0 % OC-02 Mid Dose (5.5 mg/mL)Eye Dryness Score at Visit 2-17.4 mm
2.0 % Hemigalactarate (0.11% Free Base) 2.0 % OC-02 High Dose (11.1 mg/mL)Eye Dryness Score at Visit 2-20.7 mm
Placebo (Vehicle) Nasal SprayEye Dryness Score at Visit 2-6.5 mm
Primary

Schirmer's Test Score at Day 1

The primary endpoint was the change in anesthetized Schirmer's Test Score (STS) from baseline to Day 1. Change in Schirmer test score pre to post treatment. The Schirmer's test measures the amount of tears produced by placing a paper strip in the eye for 5 minutes and distance of wetting was recorded. Schirmer's test scores from 0-35 mm where a higher score is indicative of a better outcome.

Time frame: Day 1 (Pre to Post-Treatment Change)

Population: Subjects in the ITT population

ArmMeasureValue (LEAST_SQUARES_MEAN)
0.2 % Hemigalactarate (0.11% Free Base) 0.2 % OC-02 Low Dose (1.1 mg/mL)Schirmer's Test Score at Day 19.0 mm
1.0 % Hemigalactarate (0.11% Free Base) 1.0 % OC-02 Mid Dose (5.5 mg/mL)Schirmer's Test Score at Day 117.5 mm
2.0 % Hemigalactarate (0.11% Free Base) 2.0 % OC-02 High Dose (11.1 mg/mL)Schirmer's Test Score at Day 119.6 mm
Placebo (Vehicle) Nasal SpraySchirmer's Test Score at Day 13.0 mm

Source: ClinicalTrials.gov · Data processed: Feb 11, 2026