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CompletedNCT03496467Updated Oct 12, 2021Results posted

Safety/Efficacy of Nepafenac Punctal Plug Delivery System Compared to Placebo to Control Ocular Pain/Inflammation After Cataract

A Phase 2 interventional study of Nepafenac PPDS and Placebo PPDS in Pain and Inflammation, sponsored by Mati Therapeutics Inc.. Completed at 3 sites in United States. Open to participants aged 22 Years to 99 Years. Per ClinicalTrials.gov, last updated 2021-10-12.

Sponsored by Mati Therapeutics Inc. · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
56
Allocation
Randomized
Ages
22 Years to 99 Years
Sex
All
01

Study summary

This is a Phase 2, multi-center, randomized, parallel-arm, double-masked, placebo-controlled study. One (1) to 2 days prior to their scheduled cataract surgery, each study subject will be randomized (2:1) in to one of two treatment groups: N-PPDS or p-PPDS, which are inserted in the lower punctum of the subject's scheduled surgical eye. All plugs will remain in the study subject's lower punctum for a period of 2 weeks following cataract surgery.

Read the detailed description

This is a Phase 2, multi-center, randomized, parallel-arm, double-masked, placebo-controlled study. One (1) to 2 days prior to their scheduled cataract surgery, each study subject will be randomized (2:1) in to one of two treatment groups:

Group A: A total of 50 study subjects (50 eyes) will have an N-PPDS inserted in the lower punctum of their scheduled surgical eye.

Group B: A total of 25 study subjects (25 eyes) will have a p-PPDS inserted in the lower punctum of their scheduled surgical eye.

All plugs will remain in the study subject's lower punctum for a period of 2 weeks following cataract surgery.

02

Conditions studied

  • Pain
  • Inflammation

Keywords

  • Treatment of pain and inflammation after Cataract Surgery
03

In context

Pain

10,054 studies on the registry are indexed under Pain; 1,649 are open to participants now.

This study's enrollment of 56 is below the median of 66 across 8,493 interventional studies indexed under Pain.

Browse Pain studies →

Lead sponsor

Mati Therapeutics Inc. is the lead sponsor of 15 studies on the registry; none are open to participants now.

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

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Who can participate

Ages eligible
22 Years to 99 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. A male or female subject in good general health, ≥ 22 years of age at the time of the screening visit
  2. A subject with a cataract for which routine phacoemulsification extraction and implantation of an intraocular lens has been planned
  3. A subject has a lower puncta that can be dilated to 1.0 mm in their scheduled surgical eye

Exclusion criteria

Exclusion Criteria:

  1. A subject with a history of complications, adverse events, trauma or disease in the nasolacrimal area, whether or not it was due to punctal plug wear, including but not limited to dacryocystitis, inflammation or canaliculitis in either eye
  2. A subject with structural lid abnormalities (e.g., ectropion, entropion) in their schedule surgical eye
  3. A subject with a puncta >0.9 mm prior to dilation in their scheduled surgical eye
  4. A subject with any signs of intraocular inflammation (cells/flare) in either eye at the screening visit
  5. A subject with a known sensitivity to nepafenac or any inactive ingredient of the punctum plug, silicone, fluorescein, topical anesthetic, or any other products required for study procedures or cataract surgery
  6. A subject with a history of chronic/recurrent inflammatory eye disease (e.g., scleritis, uveitis, herpes keratitis) in either eye
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Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
56 participants (actual)

Study arms

  • Active comparator
    Nepafenac PPDS

    N-PPDS (Nepafenac Punctal Plug Deliver System) is an L-shaped, silicone punctal plug with a drug eluting core that contains nepafenac (active)

    Combination Product: Nepafenac PPDS

  • Placebo comparator
    Placebo PPDS

    p-PPDS (placebo Punctal Plug Delivery System) is an L-shaped, silicone punctal plug with a drug insert that contains no active ingredient (placebo).

    Combination Product: Placebo PPDS

Interventions

  • Combination productNepafenac PPDS

    A punctal plug delivery system (PPDS) is being developed as a device that can deliver a sustained release of a drug to a specific eye. The PPDS is made up of a medical grade silicone punctal plug which holds an insert (core) that contains nepafenac, a nonsteroidal anti-inflammatory drug.

  • Combination productPlacebo PPDS

    A punctal plug delivery system (PPDS) is being developed as a device that can deliver a sustained release of a drug to a specific eye. The PPDS is made up of a medical grade silicone punctal plug which holds an insert (core) that does not contain nepafenac.

06

What researchers measure

Primary outcomes

  1. Assessment of Pain

    Assessment of pain in subjects as measured by a scale of 0 - 5. Post-op pain scale: 0 represents absence of pain and 5 represents a definite, continuous unbearable ocular or periocular pain.

    Time frame: day 14

Secondary outcomes

  1. Assessment of Anterior Chamber Cells

    Anterior chamber cells are assessed using a scale of 0 - 4 with 0 representing no cells seen and 4 representing \>30 cells seen.

    Time frame: day 14

  2. Assessment of Flare

    Anterior chamber flare is assessed using a scale of 0 - 4 with 0 representing no Tyndall effect and 4 representing Tyndall effect in anterior chamber is very intense

    Time frame: day 14

07

Results

Posted Oct 12, 2021

Participant flow

Participant flow — Overall Study
MilestoneNepafenac PPDSPlacebo PPDS
Started3818
Completed3414
Not completed44

Outcome measures

PrimaryAssessment of Pain

Assessment of pain in subjects as measured by a scale of 0 - 5. Post-op pain scale: 0 represents absence of pain and 5 represents a definite, continuous unbearable ocular or periocular pain.

Time frame:
day 14
Reported as:
Count of participants · Participants
Assessment of Pain
ParticipantsNepafenac PPDSPlacebo PPDS
no pain3013
trace pain20
mild pain21
moderate pain00
severe pain00
intolerable pain00
SecondaryAssessment of Anterior Chamber Cells

Anterior chamber cells are assessed using a scale of 0 - 4 with 0 representing no cells seen and 4 representing \>30 cells seen.

Time frame:
day 14
Reported as:
Count of participants · Participants
Assessment of Anterior Chamber Cells
ParticipantsNepafenac PPDSPlacebo PPDS
None: no cells seen227
Trace: 1-5 cells seen73
Mild: 6-15 cells seen54
Moderate: 16-30 cells seen00
Severe: >30 cells seen00
SecondaryAssessment of Flare

Anterior chamber flare is assessed using a scale of 0 - 4 with 0 representing no Tyndall effect and 4 representing Tyndall effect in anterior chamber is very intense

Time frame:
day 14
Reported as:
Count of participants · Participants
Assessment of Flare
ParticipantsNepafenac PPDSPlacebo PPDS
None: No Tyndall effect2910
Trace: Tyndall effect barely discernible31
Mild: Tyndall effect in anterior chamber is clearly visible23
Moderate: Tyndall effect in anterior chamber is moderately intense00
Severe: Tyndall effect in anterior chamber is very intense. The aqueous has a white milky appearance00

Adverse events

Collected over The Nepafenac PPDS or Placebo PPDS was inserted 1-2 days prior to surgery. Subjects were followed for 14 days (+/-2 days) post op. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Nepafenac PPDS0/38 (0%)0/38 (0%)10/38 (26.3%)
Placebo PPDS0/18 (0%)0/18 (0%)3/18 (16.7%)
Most frequent other events
Most frequent other events
EventNepafenac PPDSPlacebo PPDS
elevated IOPEye disorders3/380/18
Pain/irritation/inflammationEye disorders3/380/18
iritisEye disorders2/381/18
HeadacheNervous system disorders1/381/18
posterior capsule ruptureEye disorders0/381/18
Cavity, 3rd molarGeneral disorders1/380/18

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Nepafenac PPDSPlacebo PPDSTotal
<=18 years000
Between 18 and 65 years14620
>=65 years241236
Age, Continuous
Age, Continuous(years)Nepafenac PPDSPlacebo PPDSTotal
Mean67.2 ± 7.1767.8 ± 7.6467.4 ± 7.26
Sex: Female, Male
Sex: Female, Male(Participants)Nepafenac PPDSPlacebo PPDSTotal
Female191130
Male19726
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Nepafenac PPDSPlacebo PPDSTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American022
White381553
More than one race000
Unknown or Not Reported011
Region of Enrollment
Region of Enrollment(participants)Nepafenac PPDSPlacebo PPDSTotal
United States381856
08

Study locations

3 sites
  • Cincinnati Eye Institute-Edgewood
    Edgewood, Kentucky 41017, United States
  • Ophthalmic Consultants of Long Island
    Garden City, New York 11530, United States
  • Kerry Solomon, MD
    Mount Pleasant, South Carolina 29464, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

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 Oct 12, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03496467
Lead sponsor
Mati Therapeutics Inc.
Responsible party
Sponsor
First posted
Apr 12, 2018
Start date
Mar 5, 2018
Primary completion
Dec 17, 2018
Completion
Dec 17, 2018
Results posted
Oct 12, 2021
Last update
Oct 12, 2021

Study contacts

Deepank Utkhede
study director · Mati Therapeutics

Oversight

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

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