ClinicalTrials.gg
CompletedNCT03533244SURPHUpdated Nov 6, 2020Results posted

A Study of the Response to AG-86893 in Patients With Pterygium Hyperemia

A Phase 2 interventional study of 0.1% AG-86893 Eye Drops and 0.3% AG-86893 Eye Drops in Pterygium, sponsored by Allgenesis Biotherapeutics Inc.. Completed at 6 sites in Australia. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-11-06.

Sponsored by Allgenesis Biotherapeutics Inc. · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
64
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

A pterygium is a wing-shaped, benign tissue growth which forms on the surface of the conjunctiva and grows towards the cornea. It can eventually lead to vision impairment. The precise cause of pterygium formation is unknown but new blood vessel growth and fibroblastic structures are characteristics of the disease. AG-86893 is an eye drop being developed to treat hyperemia (redness) and growth of the pterygium.

Hypothesis

  1. AG-86893 dosed three times daily for 28 consecutive days has an acceptable safety profile as measured by the incidence and severity of adverse events (AEs) compared with vehicle
  2. At least 1 concentration of AG-86893 is effective, as measured by the mean change from baseline in conjunctival hyperemia (redness), compared with vehicle
02

Conditions studied

  • Pterygium

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Keywords

  • Hyperemia
03

In context

Pterygium

109 studies on the registry are indexed under Pterygium; 9 are open to participants now.

This study's enrollment of 64 is close to the median of 60 across 93 interventional studies indexed under Pterygium.

Browse Pterygium studies →

Lead sponsor

Allgenesis Biotherapeutics Inc. is the lead sponsor of 3 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 and older
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

  • Good health with no findings based on the medical history, , vital signs, blood chemistry, hematology, and urinalysis findings, as determined by the investigator
  • Females of must have a negative pregnancy test at baseline and must be on established, adequate and males must use condoms if their partner is of childbearing potential and their female partner should also use an additional effective means of contraception, or they must agree to abstain from sexual intercourse with a female partner for the duration of the study; contraception should be continued for 3 months after the last dose.
  • Presence of pterygium with associated conjunctival hyperemia (redness) of grade ≥2 as assessed by a central reading center.

Exclusion criteria

Exclusion Criteria:

  • History or presence of any ocular diseases other than pterygium or its sequelae (after-effects), including neoplasia (uncontrolled overgrowth)
  • Diagnosis of ocular hypertension or glaucoma requiring use of intraocular pressure-lowering medication
  • Use of contact lenses during the study in the study eye
  • History or evidence of ocular surgeries in the study eye at any time
  • History of liver dysfunction or current abnormal liver enzymes
  • Pregnancy, plans for pregnancy, or breastfeeding during the study
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

05

Study design

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

Study arms

  • Placebo comparator
    Vehicle Eye Drops

    One drop, three times daily to the study eye for 28 days

    Drug: Vehicle Eye Drops

  • Experimental
    0.1% AG-86893 Eye Drops

    One drop, three times daily to the study eye for 28 days

    Drug: 0.1% AG-86893 Eye Drops

  • Experimental
    0.3% AG-86893 Eye Drops

    One drop, three times daily to the study eye for 28 days

    Drug: 0.3% AG-86893 Eye Drops

Interventions

  • Drug0.1% AG-86893 Eye Drops

    One drop, three times daily to the study eye for 28 days

  • Drug0.3% AG-86893 Eye Drops

    One drop, three times daily to the study eye for 28 days

  • DrugVehicle Eye Drops

    One drop, three times daily to the study eye for 28 days

06

What researchers measure

Primary outcomes

  1. Change From Baseline in Overall Conjunctival Hyperemia Score

    Assessed by digital ocular photography; each quadrant of the eye (superior, inferior, nasal, temporal) will be scored using a 5-point scale (0 = none, 1 = mild, 2 = moderate, 3 = severe, and 4 = very severe) and graded by a reading center. The overall conjunctival score is the average of the four quadrants. Assessments are made by subtracting the score at Baseline from the score on Day 28. An increase in value indicates worsening of hyperemia, while a decrease indicates improvement.

    Time frame: Baseline and Day 28

Secondary outcomes

  1. Change From Baseline in Conjunctival Hyperemia Score in the Quadrant With the Pterygium

    Assessed by digital ocular photography; the quadrant with the pterygium will be scored using a 5-point scale (0 = none, 1 = mild, 2 = moderate, 3 = severe, and 4 = very severe) and graded by a reading center. Assessments are made by subtracting the score at Baseline from the score on Day 28. An increase in value indicates worsening of hyperemia, while a decrease indicates improvement.

    Time frame: Baseline and Day 28

07

Results

Posted Nov 6, 2020

Participant flow

Participant flow — Overall Study
MilestoneVehicle Eye Drops0.1% AG-86893 Eye Drops0.3% AG-86893 Eye Drops
Started202222
Completed182122
Not completed210

Outcome measures

PrimaryChange From Baseline in Overall Conjunctival Hyperemia Score

Assessed by digital ocular photography; each quadrant of the eye (superior, inferior, nasal, temporal) will be scored using a 5-point scale (0 = none, 1 = mild, 2 = moderate, 3 = severe, and 4 = very severe) and graded by a reading center. The overall conjunctival score is the average of the four quadrants. Assessments are made by subtracting the score at Baseline from the score on Day 28. An increase in value indicates worsening of hyperemia, while a decrease indicates improvement.

Time frame:
Baseline and Day 28
Reported as:
Least squares mean · score on a scale
Change From Baseline in Overall Conjunctival Hyperemia Score
score on a scaleVehicle Eye Drops0.1% AG-86893 Eye Drops0.3% AG-86893 Eye Drops
Change From Baseline in Overall Conjunctival Hyperemia Score-0.056 ± 0.120-0.330 ± 0.109-0.352 ± 0.109
Statistical analysis
  • Vehicle Eye Drops vs 0.3% AG-86893 Eye Drops · Mixed Models Analysis · p = 0.218 (To reserve the family-wise error rate, the main treatment effect will be first assessed at the global level at alpha = 0.05. If this is significant, then pairwise comparisons will be conducted using the Bonferroni adjustment for multiplicity.)
  • Vehicle Eye Drops vs 0.1% AG-86893 Eye Drops · Mixed Models Analysis · p = 0.290
SecondaryChange From Baseline in Conjunctival Hyperemia Score in the Quadrant With the Pterygium

Assessed by digital ocular photography; the quadrant with the pterygium will be scored using a 5-point scale (0 = none, 1 = mild, 2 = moderate, 3 = severe, and 4 = very severe) and graded by a reading center. Assessments are made by subtracting the score at Baseline from the score on Day 28. An increase in value indicates worsening of hyperemia, while a decrease indicates improvement.

Time frame:
Baseline and Day 28
Reported as:
Least squares mean · score on a scale
Change From Baseline in Conjunctival Hyperemia Score in the Quadrant With the Pterygium
score on a scaleVehicle Eye Drops0.1% AG-86893 Eye Drops0.3% AG-86893 Eye Drops
Change From Baseline in Conjunctival Hyperemia Score in the Quadrant With the Pterygium-0.111 ± 0.153-0.429 ± 0.142-0.500 ± 0.138
Statistical analysis
  • Vehicle Eye Drops vs 0.3% AG-86893 Eye Drops · Mixed Models Analysis · p = 0.193
  • Vehicle Eye Drops vs 0.1% AG-86893 Eye Drops · Mixed Models Analysis · p = 0.399
Post-hocPercent of Patients With a 1-point Decrease in Hyperemia Score in the Quadrant With the Pterygium

Assessed by digital ocular photography; the quadrant with the pterygium will be scored using a 5-point scale and graded by a reading center. A 1-point reduction in hyperemia score is considered clinically meaningful.

Time frame:
Day 28
Reported as:
Count of participants · Participants
Percent of Patients With a 1-point Decrease in Hyperemia Score in the Quadrant With the Pterygium
ParticipantsVehicle Eye Drops0.1% AG-86893 Eye Drops0.3% AG-86893 Eye Drops
Percent of Patients With a 1-point Decrease in Hyperemia Score in the Quadrant With the Pterygium31112
Statistical analysis
  • Vehicle Eye Drops vs 0.3% AG-86893 Eye Drops · Fisher Exact · p = 0.015
  • Vehicle Eye Drops vs 0.1% AG-86893 Eye Drops · Fisher Exact · p = 0.022

Adverse events

Collected over Adverse events were monitored for each patient until Day 84 (exit).. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Vehicle Eye Drops0/20 (0%)0/20 (0%)5/20 (25%)
0.1% AG-86893 Eye Drops0/22 (0%)0/22 (0%)5/22 (22.7%)
0.3% AG-86893 Eye Drops0/22 (0%)0/22 (0%)15/22 (68.2%)
Most frequent other events
Showing 10 of 15
Most frequent other events
EventVehicle Eye Drops0.1% AG-86893 Eye Drops0.3% AG-86893 Eye Drops
Conjunctival DiscolorationEye disorders0/201/2210/22
Vision blurredEye disorders1/201/224/22
Lacrimation increasedEye disorders2/201/220/22
Dry eyeEye disorders0/200/222/22
Eye pruritisEye disorders1/202/220/22
Eye painEye disorders1/200/221/22
Ocular hyperaemiaEye disorders1/200/220/22
BlepharitisEye disorders1/200/220/22
EpiscleritisEye disorders1/200/220/22
Visual impairmentEye disorders1/200/220/22

Baseline characteristics

Age, Continuous
Age, Continuous(years)Vehicle Eye Drops0.1% AG-86893 Eye Drops0.3% AG-86893 Eye DropsTotal
Mean49.8 ± 12.454.7 ± 11.949.0 ± 10.751.2 ± 11.8
Sex: Female, Male
Sex: Female, Male(Participants)Vehicle Eye Drops0.1% AG-86893 Eye Drops0.3% AG-86893 Eye DropsTotal
Female1051126
Male10171138
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Vehicle Eye Drops0.1% AG-86893 Eye Drops0.3% AG-86893 Eye DropsTotal
American Indian or Alaska Native0000
Asian0112
Native Hawaiian or Other Pacific Islander0000
Black or African American0000
White18211958
More than one race1001
Unknown or Not Reported1023
Region of Enrollment
Region of Enrollment(Participants)Vehicle Eye Drops0.1% AG-86893 Eye Drops0.3% AG-86893 Eye DropsTotal
Australia20222264
08

Study locations

6 sites
  • M.T. Coroneo Pty Ltd
    Randwick, New South Wales, Australia
  • H2Vision Centre
    Sippy Downs, Queensland, Australia
  • Bendigo Eye Clinic
    Bendigo, Victoria, Australia
  • Essendon Eye Clinic
    Essendon, Victoria, Australia
  • The Geelong Eye Centre
    Waurn Ponds, Victoria, Australia
  • Lions Eye Institute
    Nedlands, Western Australia, Australia
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Oct 2018 to primary completion in Sep 2019, 10 months.

Results were first posted in Nov 2020, 1 year 2 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 27, 2018
First posted
May 23, 2018
StartActual
Oct 11, 2018
Primary completionActual
Sep 5, 2019
CompletionActual
Oct 25, 2019
Results first posted
Nov 6, 2020
Last update
Nov 6, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 6, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03533244
Lead sponsor
Allgenesis Biotherapeutics Inc.
Responsible party
Sponsor
First posted
May 23, 2018
Start date
Oct 11, 2018
Primary completion
Sep 5, 2019
Completion
Oct 25, 2019
Results posted
Nov 6, 2020
Last update
Nov 6, 2020

Oversight

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

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This study is completed, as verified in Jan 2020. You cannot join it, but the record below documents what was studied.

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