Study Stopped
Based on interim review and decision to re-design the study.
Clinical Study to Evaluate Tear Characteristics Following Acute TrueTear™ Use
Randomized, Controlled, Single-Center, Cross-Over Clinical Study to Evaluate Tear Characteristics Following Acute TrueTear™ Use
1 other identifier
interventional
10
1 country
1
Brief Summary
This study will evaluate the change in tear meniscus height (TMH) produced by intranasal stimulation with TrueTear™ compared with the same device applied extranasally (control).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Oct 2017
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 5, 2017
CompletedFirst Posted
Study publicly available on registry
September 7, 2017
CompletedStudy Start
First participant enrolled
October 18, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 9, 2017
CompletedStudy Completion
Last participant's last visit for all outcomes
November 9, 2017
CompletedResults Posted
Study results publicly available
March 8, 2021
CompletedMarch 8, 2021
March 1, 2021
22 days
September 5, 2017
November 5, 2020
March 4, 2021
Conditions
Outcome Measures
Primary Outcomes (5)
Change From Baseline (Pre-application) in Tear Meniscus Height (TMH) at Eye Opening and Pre-Blink
Tear meniscus height is defined as the mean height of the lower tear prism to the edge of the eye lid measured by the investigator using the Tear scope Plus in conjunction with a Topcon SL-D7 slit lamp biomicroscope and high-resolution digital video recording. Change from Baseline to time (T) T0 (immediately), T15, T30, T60, T120, T180, T240, T300, T360 minutes (mins) after application was reported. A negative change from Baseline (Pre-application) indicates improvement.
Pre-application (Day 0) to time (T) 0 (immediately), 15, 30, 60, 120, 180, 240, 300 and 360 minutes on Day 0 after application
Change From Baseline (Pre-application) in Tear Lipid Layer Thickness at Eye Opening and Pre-Blink
Lipid layer thickness is defined as the average thickness of the lipid layer calculated from the thickness of the various pattern weighted by the relative coverage of each pattern measured by the investigator using the Tearscope Plus in conjunction with a Topcon SL-D7 slit lamp biomicroscope and high-resolution digital video recording. Change from Baseline to T0 (immediately), T15, T30, T60, T120, T180, T240, T300, T360 mins after application was reported. A negative change from Baseline (Pre-application) indicates improvement .
Pre-application (Day 0) to time (T) 0 (immediately), 15, 30, 60, 120, 180, 240, 300 and 360 minutes on Day 0 after application
Change From Baseline (Pre-application) in Non-Invasive Tear Film Break-Up Time (NIBUT)
Non-invasive break-up time is the time in seconds between eye opening and the appearance of the first visible break in the lipid layer of the pre-corneal tear film measured by the investigator using the Tearscope Plus in conjunction with a Topcon SL-D7 slit lamp biomicroscope and high-resolution digital video recording. Change from Baseline to T0 (immediately), T15, T30, T60, T120, T180, T240, T300, T360 mins after application was reported. A negative change from Baseline (Pre-application) indicates improvement.
Pre-application (Day 0) to time (T) 0 (immediately), 15, 30, 60, 120, 180, 240, 300 and 360 minutes on Day 0 after application
Change From Pre-application in Protective Index (PI)
The Protected Index (PI) corresponds to the percentage of the corneal surface that is not exposed to the atmosphere (i.e. fully covered by the tear film) over the full interblink period measured by the investigator using a Tear scope Plus in conjunction with a Topcon SL-D7 slit lamp biomicroscope and high-resolution digital video recording. Change from Baseline to T0 (immediately), T15, T30, T60, T120, T180, T240, T300, T360 mins after application was reported.
Pre-application (Day 0) to time (T) 0 (immediately), 15, 30, 60, 120, 180, 240, 300 and 360 minutes on Day 0 after application
Change From Pre-application in Exposed Area (EA)
Exposed Area is defined as the percentage of the observed area not covered by the tear film at the time of the blink hence exposed to the atmosphere measured by the investigator using a Tear scope Plus in conjunction with a Topcon SL-D7 slit lamp biomicroscope and high-resolution digital video recording. Change from Baseline to T0 (immediately), T15, T30, T60, T120, T180, T240, T300, T360 mins after application was reported.
Pre-application (Day 0) to time (T) 0 (immediately), 15, 30, 60, 120, 180, 240, 300 and 360 minutes on Day 0 after application
Study Arms (2)
TrueTear™ Intranasal then Extranasal Application
EXPERIMENTALTrueTear™ device, intranasal (test) application, for approximately 3 minutes on Day 0 followed by TrueTear™ device, extranasal (control) application, for approximately 3 minutes on Day 14.
TrueTear™ Extranasal then Intranasal Application
EXPERIMENTALTrueTear™ device, extranasal (control) application, for approximately 3 minutes on Day 0 followed by TrueTear™ device, intranasal (test) application, for approximately 3 minutes on Day 14.
Interventions
Intranasal and extranasal application of TrueTear™ device for approximately 3 minutes at Day 0 and Day 14.
Eligibility Criteria
You may qualify if:
- Baseline Ocular Surface Disease Index© (OSDI©) score of at least 23 with no more than three responses of "not applicable"
- In at least one eye, a baseline Schirmer test of ≤ 10 mm/5 minutes AND a cotton swab nasal stimulation Schirmer test of at least 7 mm higher in the same eye
You may not qualify if:
- Chronic or recurrent epistaxis, coagulation disorders or other conditions that may increase the risk of bleeding
- History of nasal or sinus surgery
- Vascularized polyp, deviated septum or severe nasal airway obstruction at the Screening visit
- Intraocular and extraocular surgery in either eye within three months of the Screening Visit or refractive surgery within twelve months of the Screening Visit
- Cardiac demand pacemaker, implanted defibrillator, or other active implanted metallic or active implanted electronic device in the head
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Allerganlead
Study Sites (1)
Ocular Technology Group International
London, SW1E 6AU, United Kingdom
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Therapeutic Area, Head
- Organization
- Allergan
Study Officials
- STUDY DIRECTOR
Clinical Director
Allergan, plc
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 5, 2017
First Posted
September 7, 2017
Study Start
October 18, 2017
Primary Completion
November 9, 2017
Study Completion
November 9, 2017
Last Updated
March 8, 2021
Results First Posted
March 8, 2021
Record last verified: 2021-03