CClinicalTrials.gg
TerminatedNCT02824913Updated Aug 31, 2018Results posted

Study of the Pharmacodynamic Activity of P-321 Ophthalmic Solution Compared to Placebo in Subjects With Dry Eye Disease

A Phase 2 interventional study of P-321 Ophthalmic Solution and P-321 Ophthalmic Solution placebo in Dry Eye Disease, sponsored by Parion Sciences. Terminated at 1 site in United States. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2018-08-31.

Sponsored by Parion Sciences · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
1
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

The purpose of this Phase 2a study is to assess changes in tear volume by the non-invasive techniques Ultra High Resolution Optical Coherence Tomography (UHR-OCT) following the administration of P-321 Ophthalmic Solution or Placebo in subjects with tear deficient dry eye disease.

Read the detailed description

This is a single-center, randomized, cross-over placebo controlled study to evaluate the changes in tear volume by P-321 Ophthalmic Solution and Placebo. The study will enroll subjects with tear deficient dry eye disease to receive sequentially one of two treatment sequences: P-321 Ophthalmic Solution then Placebo or Placebo then P-321. The study will consist of two Phases: In each Phase, subjects will be treated with P-321 Ophthalmic Solution under the same study design.

Approximately twenty-four eligible subjects will complete the study with approximately 8 subjects participating in Phase 1 and the remainder of the 24 subjects participating in the phase 2. Decisions on the dose to be used in Phase 2 will be made based on Phase 1 data.

The study will consist of three study visits: a Screening Visit (Visit 1), and two treatment visits (Visit 2 and Visit 3). The primary and secondary outcome measures will be assessed at each treatment visit. Safety assessments include adverse events (AEs).

02

Conditions studied

03

In context

Dry Eye Syndromes

1,292 studies on the registry are indexed under Dry Eye Syndromes; 191 are open to participants now.

This study's enrollment of 1 is below the median of 60 across 1,077 interventional studies indexed under Dry Eye Syndromes.

Browse Dry Eye Syndromes studies →

Lead sponsor

Parion Sciences is the lead sponsor of 9 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Provide written informed consent
  2. Male or female subjects aged 18 to 80 years
  3. Have a history of predominantly tear-deficient dry eye of mild to moderate severity, supported by a previous clinical diagnosis
  4. Have normal lid anatomy
  5. Subjects must:

    1. Remain on current medications for the duration of the study and have been on the current medication regimen at least during the past 28 days

Exclusion criteria

Exclusion Criteria:

  1. Have undergone refractive eye surgery in either eye during the past 12 months
  2. Have undergone uncomplicated cataract surgery in either eye during the past 3 months
  3. Have undergone previous eyelid surgery in either eye (External blepharoplasty, not resulting in exposure or abnormal blinking is allowed)
  4. Have undergone botulinum toxin (BotoxTh1 or equivalent) injection in the periocular area within 3 months prior to Visit 1
  5. Subjects that have a systemic, multi-organ disease requiring active medical or surgical treatment are excluded with the exception of subjects with SS or GVHD
  6. Have punctal plugs, punctal occlusion, history of nasolacrimal duct obstruction or wear scleral lens.
  7. Past or present exposure keratopathy, neurotrophic keratopathy, lagophthalmos, or trichiasis
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
1 participant (actual)

Study arms

  • Experimental
    P-321 Ophthalmic Solution

    0.017% P-321 Ophthalmic Solution will be administered to approximately 8 patients in Phase I and either 0.05% P-321 Ophthalmic Solution or 0.01% P-321 Ophthalmic Solution or additional 0.017% P-321 Ophthalmic Solution will be administered to approximately 16 patients in Phase II

    Drug: P-321 Ophthalmic Solution

  • Placebo comparator
    Drug: P-321 Ophthalmic Solution placebo

    Placebo treatment administered to approximately 8 patients in Phase I and approximately 16 patients in Phase II

    Drug: P-321 Ophthalmic Solution placebo

Interventions

  • DrugP-321 Ophthalmic Solution

    Also known as: P-321

  • DrugP-321 Ophthalmic Solution placebo

    Also known as: Placebo Comparator, Placebo

06

What researchers measure

Primary outcomes

  1. Change in Total Tear Meniscus Volume Following the Administration of P-321 Ophthalmic Solution or Placebo

    Tear meniscus volume, from measurements of tear meniscus area by UHR-OCT and the length of the eyelid was estimated over time (0 to 6 hours) following administration of placebo or P-321 Ophthalmic Solution.

    Time frame: Pre-dose and up to six hours after dose

Secondary outcomes

  1. Lower Tear Meniscus Height as Measured by the Keratograph 5M

    Tear meniscus height of the inferior eyelid was measured with the Keratograph 5M over time (0 to 6 hours) following the administration of placebo or P-321 Ophthalmic Solution

    Time frame: Pre-dose and up to six hours after dose

  2. Comparison of Lower Tear Meniscus Height Measurements Between UHR-OCT and Keratograph 5M

    Tear meniscus height of the inferior eyelid was measured by UHR-OCT and Keratograph 5M over time (0 to 6 hours) following the administration of placebo or P-321 Ophthalmic Solution

    Time frame: Pre-dose and up to six hours after dose

  3. Adverse Events

    Number of patients experiencing adverse events comparing P-321 to placebo

    Time frame: 2 or 7 hours

07

Results

Posted Jan 19, 2018

Participant flow

First Intervention (1 Day)
Participant flow — First Intervention (1 Day)
MilestoneP-321 Ophthalmic Solution Then Placebo ComparatorPlacebo Comparator Then P-321 Ophthalmic Solution
Started10
Completed10
Not completed00
Washout (7-14 Days)
Participant flow — Washout (7-14 Days)
MilestoneP-321 Ophthalmic Solution Then Placebo ComparatorPlacebo Comparator Then P-321 Ophthalmic Solution
Started10
Completed10
Not completed00
Second Intervention (1 Day)
Participant flow — Second Intervention (1 Day)
MilestoneP-321 Ophthalmic Solution Then Placebo ComparatorPlacebo Comparator Then P-321 Ophthalmic Solution
Started10
Completed10
Not completed00

Outcome measures

PrimaryChange in Total Tear Meniscus Volume Following the Administration of P-321 Ophthalmic Solution or Placebo

Tear meniscus volume, from measurements of tear meniscus area by UHR-OCT and the length of the eyelid was estimated over time (0 to 6 hours) following administration of placebo or P-321 Ophthalmic Solution.

Time frame:
Pre-dose and up to six hours after dose

No measurements were reported for this outcome.

SecondaryLower Tear Meniscus Height as Measured by the Keratograph 5M

Tear meniscus height of the inferior eyelid was measured with the Keratograph 5M over time (0 to 6 hours) following the administration of placebo or P-321 Ophthalmic Solution

Time frame:
Pre-dose and up to six hours after dose

No measurements were reported for this outcome.

SecondaryComparison of Lower Tear Meniscus Height Measurements Between UHR-OCT and Keratograph 5M

Tear meniscus height of the inferior eyelid was measured by UHR-OCT and Keratograph 5M over time (0 to 6 hours) following the administration of placebo or P-321 Ophthalmic Solution

Time frame:
Pre-dose and up to six hours after dose

No measurements were reported for this outcome.

SecondaryAdverse Events

Number of patients experiencing adverse events comparing P-321 to placebo

Time frame:
2 or 7 hours
Reported as:
Count of participants · Participants
Adverse Events
ParticipantsP-321 Ophthalmic Solution Then Placebo ComparatorPlacebo Comparator Then P-321 Ophthalmic Solution
Adverse Events00

Adverse events

Collected over Subjects were to receive 2 treatments (P-321 Ophthalmic Solution and Placebo) during this study; first treatment on Visit 2 (3 to 9 days after screening) and second treatment on Visit 3 (7 to 14 days after the first treatment).. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
P-321 Ophthalmic Solution0/1 (0%)0/1 (0%)0/1 (0%)
Drug: P-321 Ophthalmic Solution Placebo0/1 (0%)0/1 (0%)0/1 (0%)

Baseline characteristics

Only one patient was enrolled in the study, the patient was randomized into the Group of P-321 Ophthalmic Solution Then Placebo Comparator. No patients participated in the Group of Placebo Comparator Then P-321 Ophthalmic Solution

Age, Categorical
Age, Categorical(Participants)P-321 Ophthalmic Solution Then Placebo ComparatorPlacebo Comparator Then P-321 Ophthalmic SolutionTotal
<=18 years000
Between 18 and 65 years101
>=65 years000
Sex: Female, Male
Sex: Female, Male(Participants)P-321 Ophthalmic Solution Then Placebo ComparatorPlacebo Comparator Then P-321 Ophthalmic SolutionTotal
Female101
Male000
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)P-321 Ophthalmic Solution Then Placebo ComparatorPlacebo Comparator Then P-321 Ophthalmic SolutionTotal
Hispanic or Latino101
Not Hispanic or Latino000
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(participants)P-321 Ophthalmic Solution Then Placebo ComparatorPlacebo Comparator Then P-321 Ophthalmic SolutionTotal
United States1—1
08

Study locations

1 site
  • Bascom Palmer Eye Institute, University of Miami Health System
    Plantation, Florida 33324, United States
09

References and documents

Study documents

  • Protocol and statistical analysis plan · Sep 7, 2017

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 31, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02824913
Lead sponsor
Parion Sciences
Responsible party
Sponsor
First posted
Jul 7, 2016
Start date
Jul 2016
Primary completion
Mar 2017
Completion
Mar 2017
Results posted
Jan 19, 2018
Last update
Aug 31, 2018

Study contacts

Jose Boyer
study director · Parion Sciences

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Dec 2017. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion