Trial Outcomes & Findings for Evaluation of the Effectiveness of ST266 Ophthalmic Drops Compared to Placebo to Treat Allergic Conjunctivitis (NCT NCT02978183)

NCT ID: NCT02978183

Last Updated: 2023-04-10

Results Overview

Ocular itching evaluated by the subject. Ocular itching was evaluated on a 0-4 scale (with half unit increments allowed). Lower scores indicated less itching.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

70 participants

Primary outcome timeframe

Day 7 and 8

Results posted on

2023-04-10

Participant Flow

Participant milestones

Participant milestones
Measure
Group 1
1X ST266 dosed 4 times a day for 8 days ST266: One (1) drop of 1X ST266 ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Group 2
Placebo dosed 4 times a day for 8 days Saline (0.9% NaCl): One (1) drop of saline ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Overall Study
STARTED
34
36
Overall Study
COMPLETED
34
36
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Evaluation of the Effectiveness of ST266 Ophthalmic Drops Compared to Placebo to Treat Allergic Conjunctivitis

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Group 1
n=34 Participants
1X ST266 dosed 4 times a day for 8 days ST266: One (1) drop of 1X ST266 ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Group 2
n=36 Participants
Placebo dosed 4 times a day for 8 days Saline (0.9% NaCl): One (1) drop of saline ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Total
n=70 Participants
Total of all reporting groups
Age, Continuous
43.5 years
STANDARD_DEVIATION 13.44 • n=5 Participants
47 years
STANDARD_DEVIATION 13.98 • n=7 Participants
45.3 years
STANDARD_DEVIATION 13.74 • n=5 Participants
Sex: Female, Male
Female
19 Participants
n=5 Participants
22 Participants
n=7 Participants
41 Participants
n=5 Participants
Sex: Female, Male
Male
15 Participants
n=5 Participants
14 Participants
n=7 Participants
29 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
4 Participants
n=5 Participants
4 Participants
n=7 Participants
8 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
30 Participants
n=5 Participants
32 Participants
n=7 Participants
62 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
9 Participants
n=5 Participants
10 Participants
n=7 Participants
19 Participants
n=5 Participants
Race (NIH/OMB)
White
25 Participants
n=5 Participants
24 Participants
n=7 Participants
49 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Iris Color
Black
0 eyes
n=5 Participants
0 eyes
n=7 Participants
0 eyes
n=5 Participants
Iris Color
Blue
10 eyes
n=5 Participants
20 eyes
n=7 Participants
30 eyes
n=5 Participants
Iris Color
Brown
42 eyes
n=5 Participants
44 eyes
n=7 Participants
86 eyes
n=5 Participants
Iris Color
Hazel
8 eyes
n=5 Participants
2 eyes
n=7 Participants
10 eyes
n=5 Participants
Iris Color
Green
8 eyes
n=5 Participants
6 eyes
n=7 Participants
14 eyes
n=5 Participants
Iris Color
Other
0 eyes
n=5 Participants
0 eyes
n=7 Participants
0 eyes
n=5 Participants
Allergen Disposition
Dust Mite
18 Participants
n=5 Participants
16 Participants
n=7 Participants
34 Participants
n=5 Participants
Allergen Disposition
Dog Dander
4 Participants
n=5 Participants
5 Participants
n=7 Participants
9 Participants
n=5 Participants
Allergen Disposition
Cockroach
1 Participants
n=5 Participants
4 Participants
n=7 Participants
5 Participants
n=5 Participants
Allergen Disposition
Cat Dander
11 Participants
n=5 Participants
11 Participants
n=7 Participants
22 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Day 7 and 8

Population: Pre-Conjunctival Allergen Challenge not evaluated in subject 1-011 on visit 5B

Ocular itching evaluated by the subject. Ocular itching was evaluated on a 0-4 scale (with half unit increments allowed). Lower scores indicated less itching.

Outcome measures

Outcome measures
Measure
Group 1
n=34 Participants
1X ST266 dosed 4 times a day for 8 days ST266: One (1) drop of 1X ST266 ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Group 2
n=36 Participants
Placebo dosed 4 times a day for 8 days Saline (0.9% NaCl): One (1) drop of saline ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Ocular Itching
Day 7, Pre-Conjunctival Allergen Challenge
0.508 score on a scale
Standard Deviation 0.8373
0.139 score on a scale
Standard Deviation 0.3131
Ocular Itching
Day 7, 5 Minutes Post Conjunctival Allergen Challenge
2.485 score on a scale
Standard Deviation 0.9533
2.535 score on a scale
Standard Deviation 1.1070
Ocular Itching
Day 7, 7 Minutes Post Conjunctival Allergen Challenge
2.559 score on a scale
Standard Deviation 0.9887
2.576 score on a scale
Standard Deviation 1.1113
Ocular Itching
Day 7, 10 Minutes Post Conjunctival Allergen Challenge
2.434 score on a scale
Standard Deviation 0.9320
2.458 score on a scale
Standard Deviation 1.1124
Ocular Itching
Day 7, 15 Minutes Post Conjunctival Allergen Challenge
2.154 score on a scale
Standard Deviation 0.9415
2.181 score on a scale
Standard Deviation 1.1520
Ocular Itching
Day 7, 20 Minutes Post Conjunctival Allergen Challenge
1.838 score on a scale
Standard Deviation 0.9960
1.910 score on a scale
Standard Deviation 1.1482
Ocular Itching
Day 7, 25 Minutes Post Conjunctival Allergen Challenge
1.529 score on a scale
Standard Deviation 0.9103
1.722 score on a scale
Standard Deviation 1.1707
Ocular Itching
Day 7, 30 Minutes Post Conjunctival Allergen Challenge
1.346 score on a scale
Standard Deviation 0.9435
1.583 score on a scale
Standard Deviation 1.1164
Ocular Itching
Day 8, pre-Conjunctival Allergen Challenge
0.449 score on a scale
Standard Deviation 0.7405
0.167 score on a scale
Standard Deviation 0.3827
Ocular Itching
Day 8, 5 Minutes Post Conjunctival Allergen Challenge
2.816 score on a scale
Standard Deviation 0.8968
2.618 score on a scale
Standard Deviation 0.9847
Ocular Itching
Day 8, 7 Minutes Post Conjunctival Allergen Challenge
2.787 score on a scale
Standard Deviation 0.9316
2.625 score on a scale
Standard Deviation 0.9865
Ocular Itching
Day 8, 10 Minutes Post Conjunctival Allergen Challenge
2.588 score on a scale
Standard Deviation 0.9903
2.604 score on a scale
Standard Deviation 1.0357
Ocular Itching
Day 8, 15 Minutes Post Conjunctival Allergen Challenge
2.309 score on a scale
Standard Deviation 0.9654
2.299 score on a scale
Standard Deviation 1.0804
Ocular Itching
Day 8, 20 Minutes Post Conjunctival Allergen Challenge
2.081 score on a scale
Standard Deviation 0.9389
1.986 score on a scale
Standard Deviation 1.1354
Ocular Itching
Day 8, 25 Minutes Post Conjunctival Allergen Challenge
1.765 score on a scale
Standard Deviation 0.9573
1.819 score on a scale
Standard Deviation 1.1158
Ocular Itching
Day 8, 30 Minutes Post Conjunctival Allergen Challenge
1.493 score on a scale
Standard Deviation 0.9262
1.590 score on a scale
Standard Deviation 1.1167

PRIMARY outcome

Timeframe: Day 7 and 8

Conjunctival redness evaluated by the investigator. Conjunctival redness was evaluated on a 0-4 scale (with half unit increments allowed). Lower scores indicated less redness.

Outcome measures

Outcome measures
Measure
Group 1
n=34 Participants
1X ST266 dosed 4 times a day for 8 days ST266: One (1) drop of 1X ST266 ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Group 2
n=36 Participants
Placebo dosed 4 times a day for 8 days Saline (0.9% NaCl): One (1) drop of saline ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Conjunctival Redness
Day 7, Pre-Conjunctival Allergen Challenge
1.103 score on a scale
Standard Deviation 0.7541
1.028 score on a scale
Standard Deviation 0.5818
Conjunctival Redness
Day 7, 10 Minutes Post Conjunctival Allergen Challenge
2.125 score on a scale
Standard Deviation 0.8817
1.958 score on a scale
Standard Deviation 0.8814
Conjunctival Redness
Day 7, 15 Minutes Post Conjunctival Allergen Challenge
1.897 score on a scale
Standard Deviation 0.9714
1.882 score on a scale
Standard Deviation 0.9073
Conjunctival Redness
Day 7, 20 Minutes Post Conjunctival Allergen Challenge
1.926 score on a scale
Standard Deviation 1.0308
1.771 score on a scale
Standard Deviation 0.8481
Conjunctival Redness
Day 7, 25 Minutes Post Conjunctival Allergen Challenge
1.875 score on a scale
Standard Deviation 1.0005
1.743 score on a scale
Standard Deviation 0.8377
Conjunctival Redness
Day 7, 30 Minutes Post Conjunctival Allergen Challenge
1.816 score on a scale
Standard Deviation 1.0323
1.681 score on a scale
Standard Deviation 0.8775
Conjunctival Redness
Day 8, Pre-Conjunctival Allergen Challenge
0.912 score on a scale
Standard Deviation 0.6682
0.819 score on a scale
Standard Deviation 0.4766
Conjunctival Redness
Day 8, 10 Minutes Post Conjunctival Allergen Challenge
1.963 score on a scale
Standard Deviation 0.7909
1.917 score on a scale
Standard Deviation 0.7319
Conjunctival Redness
Day 8, 15 Minutes Post Conjunctival Allergen Challenge
1.963 score on a scale
Standard Deviation 0.8075
2.111 score on a scale
Standard Deviation 0.7870
Conjunctival Redness
Day 8, 20 Minutes Post Conjunctival Allergen Challenge
1.882 score on a scale
Standard Deviation 0.8101
1.951 score on a scale
Standard Deviation 0.8036
Conjunctival Redness
Day 8, 25 Minutes Post Conjunctival Allergen Challenge
1.735 score on a scale
Standard Deviation 0.8549
1.785 score on a scale
Standard Deviation 0.8241
Conjunctival Redness
Day 8, 30 Minutes Post Conjunctival Allergen Challenge
1.596 score on a scale
Standard Deviation 0.8791
1.625 score on a scale
Standard Deviation 0.7476

SECONDARY outcome

Timeframe: Day 7 and 8

Ciliary redness evaluated by the investigator. Ciliary redness was evaluated on a 0-4 scale (with half unit increments allowed). A lower score was indicative of less redness.

Outcome measures

Outcome measures
Measure
Group 1
n=34 Participants
1X ST266 dosed 4 times a day for 8 days ST266: One (1) drop of 1X ST266 ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Group 2
n=36 Participants
Placebo dosed 4 times a day for 8 days Saline (0.9% NaCl): One (1) drop of saline ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Ciliary Redness
Day 7, Pre-Conjunctival Allergen Challenge
0.912 score on a scale
Standard Deviation 0.6243
0.750 score on a scale
Standard Deviation 0.5445
Ciliary Redness
Day 7, 10 Minutes Post Conjunctival Allergen Challenge
1.838 score on a scale
Standard Deviation 0.8368
1.799 score on a scale
Standard Deviation 0.8341
Ciliary Redness
Day 7, 15 Minutes Post Conjunctival Allergen Challenge
1.691 score on a scale
Standard Deviation 0.9925
1.729 score on a scale
Standard Deviation 0.8353
Ciliary Redness
Day 7, 20 Minutes Post Conjunctival Allergen Challenge
1.713 score on a scale
Standard Deviation 0.9417
1.625 score on a scale
Standard Deviation 0.8420
Ciliary Redness
Day 7, 25 Minutes Post Conjunctival Allergen Challenge
1.654 score on a scale
Standard Deviation 0.9150
1.583 score on a scale
Standard Deviation 0.7488
Ciliary Redness
Day 7, 30 Minutes Post Conjunctival Allergen Challenge
1.603 score on a scale
Standard Deviation 0.9869
1.493 score on a scale
Standard Deviation 0.8608
Ciliary Redness
Day 8, pre-Conjunctival Allergen Challenge
0.581 score on a scale
Standard Deviation 0.6053
0.521 score on a scale
Standard Deviation 0.4487
Ciliary Redness
Day 8, 10 Minutes Post Conjunctival Allergen Challenge
1.691 score on a scale
Standard Deviation 0.8189
1.743 score on a scale
Standard Deviation 0.7058
Ciliary Redness
Day 8, 15 Minutes Post Conjunctival Allergen Challenge
1.699 score on a scale
Standard Deviation 0.7804
1.931 score on a scale
Standard Deviation 0.7310
Ciliary Redness
Day 8, 20 Minutes Post Conjunctival Allergen Challenge
1.625 score on a scale
Standard Deviation 0.8556
1.792 score on a scale
Standard Deviation 0.7688
Ciliary Redness
Day 8, 25 Minutes Post Conjunctival Allergen Challenge
1.463 score on a scale
Standard Deviation 0.9027
1.569 score on a scale
Standard Deviation 0.7806
Ciliary Redness
Day 8, 30 Minutes Post Conjunctival Allergen Challenge
1.346 score on a scale
Standard Deviation 0.8528
1.458 score on a scale
Standard Deviation 0.8007

SECONDARY outcome

Timeframe: Day 7 and 8

Episcleral redness evaluated by the investigator. Episcleral redness was evaluated on a 0-4 scale (with half unit increments allowed). A lower score was indicative of less redness.

Outcome measures

Outcome measures
Measure
Group 1
n=34 Participants
1X ST266 dosed 4 times a day for 8 days ST266: One (1) drop of 1X ST266 ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Group 2
n=36 Participants
Placebo dosed 4 times a day for 8 days Saline (0.9% NaCl): One (1) drop of saline ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Episcleral Redness
Day 7, Pre-Conjunctival Allergen Challenge
1.029 score on a scale
Standard Deviation 0.6622
0.910 score on a scale
Standard Deviation 0.5579
Episcleral Redness
Day 7, 10 Minutes Post Conjunctival Allergen Challenge
1.868 score on a scale
Standard Deviation 0.8217
1.819 score on a scale
Standard Deviation 0.8401
Episcleral Redness
Day 7, 15 Minutes Post Conjunctival Allergen Challenge
1.757 score on a scale
Standard Deviation 0.9283
1.778 score on a scale
Standard Deviation 0.8468
Episcleral Redness
Day 7, 20 Minutes Post Conjunctival Allergen Challenge
1.787 score on a scale
Standard Deviation 0.9656
1.701 score on a scale
Standard Deviation 0.8036
Episcleral Redness
Day 7, 25 Minutes Post Conjunctival Allergen Challenge
1.721 score on a scale
Standard Deviation 0.9939
1.618 score on a scale
Standard Deviation 0.7500
Episcleral Redness
Day 7, 30 Minutes Post Conjunctival Allergen Challenge
1.669 score on a scale
Standard Deviation 1.0275
1.583 score on a scale
Standard Deviation 0.8345
Episcleral Redness
Day 8, pre-Conjunctival Allergen Challenge
0.507 score on a scale
Standard Deviation 0.5822
0.424 score on a scale
Standard Deviation 0.4544
Episcleral Redness
Day 8, 10 Minutes Post Conjunctival Allergen Challenge
1.735 score on a scale
Standard Deviation 0.8210
1.708 score on a scale
Standard Deviation 0.6827
Episcleral Redness
Day 8, 15 Minutes Post Conjunctival Allergen Challenge
1.706 score on a scale
Standard Deviation 0.8404
1.896 score on a scale
Standard Deviation 0.7055
Episcleral Redness
Day 8, 20 Minutes Post Conjunctival Allergen Challenge
1.647 score on a scale
Standard Deviation 0.8144
1.701 score on a scale
Standard Deviation 0.7508
Episcleral Redness
Day 8, 25 Minutes Post Conjunctival Allergen Challenge
1.412 score on a scale
Standard Deviation 0.8680
1.583 score on a scale
Standard Deviation 0.7488
Episcleral Redness
Day 8, 30 Minutes Post Conjunctival Allergen Challenge
1.353 score on a scale
Standard Deviation 0.8575
1.347 score on a scale
Standard Deviation 0.7495

SECONDARY outcome

Timeframe: Day 7 and 8

Chemosis evaluated by the investigator. Chemosis was evaluated on a 0-4 scale (with half unit increments allowed). A lower score was indicative of less chemosis.

Outcome measures

Outcome measures
Measure
Group 1
n=34 Participants
1X ST266 dosed 4 times a day for 8 days ST266: One (1) drop of 1X ST266 ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Group 2
n=36 Participants
Placebo dosed 4 times a day for 8 days Saline (0.9% NaCl): One (1) drop of saline ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Chemosis
Day 7, Pre-Conjunctival Allergen Challenge
0.390 score on a scale
Standard Deviation 0.3703
0.465 score on a scale
Standard Deviation 0.3787
Chemosis
Day 7, 10 Minutes Post Conjunctival Allergen Challenge
0.765 score on a scale
Standard Deviation 0.4306
0.840 score on a scale
Standard Deviation 0.4711
Chemosis
Day 7, 15 Minutes Post Conjunctival Allergen Challenge
0.669 score on a scale
Standard Deviation 0.5391
0.708 score on a scale
Standard Deviation 0.4762
Chemosis
Day 7, 20 Minutes Post Conjunctival Allergen Challenge
0.691 score on a scale
Standard Deviation 0.5709
0.778 score on a scale
Standard Deviation 0.4259
Chemosis
Day 7, 25 Minutes Post Conjunctival Allergen Challenge
0.691 score on a scale
Standard Deviation 0.6001
0.785 score on a scale
Standard Deviation 0.5146
Chemosis
Day 7, 30 Minutes Post Conjunctival Allergen Challenge
0.676 score on a scale
Standard Deviation 0.6047
0.757 score on a scale
Standard Deviation 0.4075
Chemosis
Day 8, pre-Conjunctival Allergen Challenge
0.081 score on a scale
Standard Deviation 0.2280
0.104 score on a scale
Standard Deviation 0.1925
Chemosis
Day 8, 10 Minutes Post Conjunctival Allergen Challenge
0.574 score on a scale
Standard Deviation 0.6262
0.674 score on a scale
Standard Deviation 0.4994
Chemosis
Day 8, 15 Minutes Post Conjunctival Allergen Challenge
0.632 score on a scale
Standard Deviation 0.7288
0.764 score on a scale
Standard Deviation 0.4265
Chemosis
Day 8, 20 Minutes Post Conjunctival Allergen Challenge
0.684 score on a scale
Standard Deviation 0.7792
0.708 score on a scale
Standard Deviation 0.4571
Chemosis
Day 8, 25 Minutes Post Conjunctival Allergen Challenge
0.566 score on a scale
Standard Deviation 0.7444
0.590 score on a scale
Standard Deviation 0.5674
Chemosis
Day 8, 30 Minutes Post Conjunctival Allergen Challenge
0.551 score on a scale
Standard Deviation 0.8137
0.493 score on a scale
Standard Deviation 0.6196

SECONDARY outcome

Timeframe: Day 7 and 8

Eyelid swelling evaluated by the subject. Eyelid swelling was evaluated on a 0-4 scale in which 0.5 unit increments were not allowed. A lower score was indicative of less swelling.

Outcome measures

Outcome measures
Measure
Group 1
n=34 Participants
1X ST266 dosed 4 times a day for 8 days ST266: One (1) drop of 1X ST266 ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Group 2
n=36 Participants
Placebo dosed 4 times a day for 8 days Saline (0.9% NaCl): One (1) drop of saline ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Eyelid Swelling
Day 7, 25 Minutes Post Conjunctival Allergen Challenge
0.96 score on a scale
Standard Deviation 0.711
1.22 score on a scale
Standard Deviation 0.857
Eyelid Swelling
Day 7, 30 Minutes Post Conjunctival Allergen Challenge
0.79 score on a scale
Standard Deviation 0.780
0.97 score on a scale
Standard Deviation 0.836
Eyelid Swelling
Day 7, Pre-Conjunctival Allergen Challenge
0.45 score on a scale
Standard Deviation 0.711
0.22 score on a scale
Standard Deviation 0.404
Eyelid Swelling
Day 7, 10 Minutes Post Conjunctival Allergen Challenge
1.22 score on a scale
Standard Deviation 0.889
1.39 score on a scale
Standard Deviation 0.871
Eyelid Swelling
Day 7, 15 Minutes Post Conjunctival Allergen Challenge
1.25 score on a scale
Standard Deviation 0.915
1.33 score on a scale
Standard Deviation 0.837
Eyelid Swelling
Day 7, 20 Minutes Post Conjunctival Allergen Challenge
1.06 score on a scale
Standard Deviation 0.776
1.25 score on a scale
Standard Deviation 0.841
Eyelid Swelling
Day 8, pre-Conjunctival Allergen Challenge
0.41 score on a scale
Standard Deviation 0.621
0.26 score on a scale
Standard Deviation 0.500
Eyelid Swelling
Day 8, 10 Minutes Post Conjunctival Allergen Challenge
1.35 score on a scale
Standard Deviation 0.744
1.21 score on a scale
Standard Deviation 0.873
Eyelid Swelling
Day 8, 15 Minutes Post Conjunctival Allergen Challenge
1.29 score on a scale
Standard Deviation 0.740
1.19 score on a scale
Standard Deviation 0.881
Eyelid Swelling
Day 8, 20 Minutes Post Conjunctival Allergen Challenge
1.12 score on a scale
Standard Deviation 0.817
1.11 score on a scale
Standard Deviation 0.887
Eyelid Swelling
Day 8, 25 Minutes Post Conjunctival Allergen Challenge
0.94 score on a scale
Standard Deviation 0.766
1.10 score on a scale
Standard Deviation 0.893
Eyelid Swelling
Day 8, 30 Minutes Post Conjunctival Allergen Challenge
0.81 score on a scale
Standard Deviation 0.728
0.89 score on a scale
Standard Deviation 0.887

SECONDARY outcome

Timeframe: Day 7 and 8

Tearing evaluated by the subject. Tearing was evaluated on a 0-4 scale in which 0.5 unit increments were not allowed. A lower score was indicative of less tearing.

Outcome measures

Outcome measures
Measure
Group 1
n=34 Participants
1X ST266 dosed 4 times a day for 8 days ST266: One (1) drop of 1X ST266 ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Group 2
n=36 Participants
Placebo dosed 4 times a day for 8 days Saline (0.9% NaCl): One (1) drop of saline ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Tearing/Watery Eyes
Day 7, Pre-Conjunctival Allergen Challenge
0.38 score on a scale
Standard Deviation 0.707
0.21 score on a scale
Standard Deviation 0.437
Tearing/Watery Eyes
Day 7, 10 Minutes Post Conjunctival Allergen Challenge
1.15 score on a scale
Standard Deviation 0.966
1.38 score on a scale
Standard Deviation 1.024
Tearing/Watery Eyes
Day 7, 15 Minutes Post Conjunctival Allergen Challenge
0.88 score on a scale
Standard Deviation 1.038
1.22 score on a scale
Standard Deviation 1.003
Tearing/Watery Eyes
Day 7, 20 Minutes Post Conjunctival Allergen Challenge
0.72 score on a scale
Standard Deviation 0.898
1.07 score on a scale
Standard Deviation 0.965
Tearing/Watery Eyes
Day 7, 25 Minutes Post Conjunctival Allergen Challenge
0.71 score on a scale
Standard Deviation 0.930
0.94 score on a scale
Standard Deviation 1.034
Tearing/Watery Eyes
Day 7, 30 Minutes Post Conjunctival Allergen Challenge
0.65 score on a scale
Standard Deviation 0.875
0.85 score on a scale
Standard Deviation 0.909
Tearing/Watery Eyes
Day 8, pre-Conjunctival Allergen Challenge
0.37 score on a scale
Standard Deviation 0.810
0.28 score on a scale
Standard Deviation 0.553
Tearing/Watery Eyes
Day 8, 10 Minutes Post Conjunctival Allergen Challenge
1.07 score on a scale
Standard Deviation 1.074
1.15 score on a scale
Standard Deviation 0.970
Tearing/Watery Eyes
Day 8, 15 Minutes Post Conjunctival Allergen Challenge
1.04 score on a scale
Standard Deviation 1.090
1.13 score on a scale
Standard Deviation 0.929
Tearing/Watery Eyes
Day 8, 20 Minutes Post Conjunctival Allergen Challenge
0.87 score on a scale
Standard Deviation 0.864
1.01 score on a scale
Standard Deviation 0.906
Tearing/Watery Eyes
Day 8, 25 Minutes Post Conjunctival Allergen Challenge
0.76 score on a scale
Standard Deviation 0.809
1.00 score on a scale
Standard Deviation 0.956
Tearing/Watery Eyes
Day 8, 30 Minutes Post Conjunctival Allergen Challenge
0.65 score on a scale
Standard Deviation 0.803
0.88 score on a scale
Standard Deviation 0.952

SECONDARY outcome

Timeframe: Day 7 and 8

Rhinorrhea evaluated by the subject. Rhinorrhea was evaluated on a 0-4 scale in which 0.5 unit increments were not allowed. A lower score was indicative of less severity.

Outcome measures

Outcome measures
Measure
Group 1
n=34 Participants
1X ST266 dosed 4 times a day for 8 days ST266: One (1) drop of 1X ST266 ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Group 2
n=36 Participants
Placebo dosed 4 times a day for 8 days Saline (0.9% NaCl): One (1) drop of saline ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Rhinorrhea
Day 8, pre-Conjunctival Allergen Challenge
0.29 score on a scale
Standard Deviation 0.579
0.22 score on a scale
Standard Deviation 0.591
Rhinorrhea
Day 7, Pre-Conjunctival Allergen Challenge
0.33 score on a scale
Standard Deviation 0.595
0.19 score on a scale
Standard Deviation 0.525
Rhinorrhea
Day 7, 10 Minutes Post Conjunctival Allergen Challenge
1.35 score on a scale
Standard Deviation 1.152
1.47 score on a scale
Standard Deviation 1.134
Rhinorrhea
Day 7, 15 Minutes Post Conjunctival Allergen Challenge
1.18 score on a scale
Standard Deviation 0.904
1.31 score on a scale
Standard Deviation 1.142
Rhinorrhea
Day 7, 20 Minutes Post Conjunctival Allergen Challenge
0.97 score on a scale
Standard Deviation 0.870
0.97 score on a scale
Standard Deviation 1.082
Rhinorrhea
Day 7, 25 Minutes Post Conjunctival Allergen Challenge
0.85 score on a scale
Standard Deviation 0.821
0.89 score on a scale
Standard Deviation 1.090
Rhinorrhea
Day 7, 30 Minutes Post Conjunctival Allergen Challenge
0.85 score on a scale
Standard Deviation 0.784
0.94 score on a scale
Standard Deviation 1.068
Rhinorrhea
Day 8, 10 Minutes Post Conjunctival Allergen Challenge
1.29 score on a scale
Standard Deviation 0.938
1.39 score on a scale
Standard Deviation 1.225
Rhinorrhea
Day 8, 15 Minutes Post Conjunctival Allergen Challenge
1.26 score on a scale
Standard Deviation 0.963
1.31 score on a scale
Standard Deviation 1.283
Rhinorrhea
Day 8, 20 Minutes Post Conjunctival Allergen Challenge
1.09 score on a scale
Standard Deviation 0.933
1.08 score on a scale
Standard Deviation 1.156
Rhinorrhea
Day 8, 25 Minutes Post Conjunctival Allergen Challenge
1.00 score on a scale
Standard Deviation 0.853
0.92 score on a scale
Standard Deviation 1.180
Rhinorrhea
Day 8, 30 Minutes Post Conjunctival Allergen Challenge
0.94 score on a scale
Standard Deviation 0.776
0.83 score on a scale
Standard Deviation 1.108

SECONDARY outcome

Timeframe: Day 7 and 8

Population: Pre-Conjunctival Allergen Challenge not evaluated in subject 1-011 on visit 5B

Nasal Pruritus evaluated by the subject. Nasal pruritus was evaluated on a 0-4 scale in which 0.5 unit increments were not allowed. A lower score was indicative of less severity.

Outcome measures

Outcome measures
Measure
Group 1
n=34 Participants
1X ST266 dosed 4 times a day for 8 days ST266: One (1) drop of 1X ST266 ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Group 2
n=36 Participants
Placebo dosed 4 times a day for 8 days Saline (0.9% NaCl): One (1) drop of saline ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Nasal Pruritus
Day 7, Pre-Conjunctival Allergen Challenge
0.30 score on a scale
Standard Deviation 0.467
0.06 score on a scale
Standard Deviation 0.232
Nasal Pruritus
Day 7, 10 Minutes Post Conjunctival Allergen Challenge
1.03 score on a scale
Standard Deviation 1.141
1.11 score on a scale
Standard Deviation 1.116
Nasal Pruritus
Day 7, 15 Minutes Post Conjunctival Allergen Challenge
0.91 score on a scale
Standard Deviation 0.965
1.03 score on a scale
Standard Deviation 1.082
Nasal Pruritus
Day 7, 20 Minutes Post Conjunctival Allergen Challenge
0.76 score on a scale
Standard Deviation 0.923
0.89 score on a scale
Standard Deviation 0.950
Nasal Pruritus
Day 7, 25 Minutes Post Conjunctival Allergen Challenge
0.76 score on a scale
Standard Deviation 0.890
0.83 score on a scale
Standard Deviation 0.971
Nasal Pruritus
Day 7, 30 Minutes Post Conjunctival Allergen Challenge
0.65 score on a scale
Standard Deviation 0.774
0.75 score on a scale
Standard Deviation 0.967
Nasal Pruritus
Day 8, pre-Conjunctival Allergen Challenge
0.24 score on a scale
Standard Deviation 0.554
0.14 score on a scale
Standard Deviation 0.487
Nasal Pruritus
Day 8, 10 Minutes Post Conjunctival Allergen Challenge
1.03 score on a scale
Standard Deviation 1.167
0.94 score on a scale
Standard Deviation 1.145
Nasal Pruritus
Day 8, 15 Minutes Post Conjunctival Allergen Challenge
1.03 score on a scale
Standard Deviation 1.087
0.83 score on a scale
Standard Deviation 1.082
Nasal Pruritus
Day 8, 20 Minutes Post Conjunctival Allergen Challenge
0.91 score on a scale
Standard Deviation 1.111
0.69 score on a scale
Standard Deviation 1.009
Nasal Pruritus
Day 8, 25 Minutes Post Conjunctival Allergen Challenge
0.68 score on a scale
Standard Deviation 0.912
0.69 score on a scale
Standard Deviation 1.009
Nasal Pruritus
Day 8, 30 Minutes Post Conjunctival Allergen Challenge
0.59 score on a scale
Standard Deviation 0.821
0.64 score on a scale
Standard Deviation 1.018

SECONDARY outcome

Timeframe: Day 7 and 8

Population: Pre-Conjunctival Allergen Challenge not evaluated in subject 1-011 on visit 5B

Ear or palate pruritus evaluated by the subject. Ear or palate pruritus was evaluated on a 0-4 scale in which 0.5 unit increments were not allowed. A lower score was indicative of less severity.

Outcome measures

Outcome measures
Measure
Group 1
n=34 Participants
1X ST266 dosed 4 times a day for 8 days ST266: One (1) drop of 1X ST266 ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Group 2
n=36 Participants
Placebo dosed 4 times a day for 8 days Saline (0.9% NaCl): One (1) drop of saline ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Ear or Palate Pruritus
Day 7, Pre-Conjunctival Allergen Challenge
0.33 score on a scale
Standard Deviation 0.595
0.19 score on a scale
Standard Deviation 0.401
Ear or Palate Pruritus
Day 7, 10 Minutes Post Conjunctival Allergen Challenge
1.26 score on a scale
Standard Deviation 1.355
1.22 score on a scale
Standard Deviation 1.245
Ear or Palate Pruritus
Day 7, 15 Minutes Post Conjunctival Allergen Challenge
1.18 score on a scale
Standard Deviation 1.193
1.11 score on a scale
Standard Deviation 1.214
Ear or Palate Pruritus
Day 7, 20 Minutes Post Conjunctival Allergen Challenge
1.00 score on a scale
Standard Deviation 1.073
1.08 score on a scale
Standard Deviation 1.105
Ear or Palate Pruritus
Day 7, 25 Minutes Post Conjunctival Allergen Challenge
0.91 score on a scale
Standard Deviation 0.965
0.94 score on a scale
Standard Deviation 1.094
Ear or Palate Pruritus
Day 7, 30 Minutes Post Conjunctival Allergen Challenge
0.88 score on a scale
Standard Deviation 0.808
0.83 score on a scale
Standard Deviation 0.971
Ear or Palate Pruritus
Day 8, pre-Conjunctival Allergen Challenge
0.06 score on a scale
Standard Deviation 0.239
0.19 score on a scale
Standard Deviation 0.401
Ear or Palate Pruritus
Day 8, 10 Minutes Post Conjunctival Allergen Challenge
1.18 score on a scale
Standard Deviation 1.336
1.33 score on a scale
Standard Deviation 1.352
Ear or Palate Pruritus
Day 8, 15 Minutes Post Conjunctival Allergen Challenge
1.15 score on a scale
Standard Deviation 1.282
1.28 score on a scale
Standard Deviation 1.344
Ear or Palate Pruritus
Day 8, 20 Minutes Post Conjunctival Allergen Challenge
1.12 score on a scale
Standard Deviation 1.274
1.19 score on a scale
Standard Deviation 1.283
Ear or Palate Pruritus
Day 8, 25 Minutes Post Conjunctival Allergen Challenge
1.00 score on a scale
Standard Deviation 1.181
1.08 score on a scale
Standard Deviation 1.204
Ear or Palate Pruritus
Day 8, 30 Minutes Post Conjunctival Allergen Challenge
1.00 score on a scale
Standard Deviation 1.128
0.97 score on a scale
Standard Deviation 1.253

SECONDARY outcome

Timeframe: Day 7 and 8

Population: Pre-Conjunctival Allergen Challenge not evaluated in subject 1-011 on visit 5B

Nasal congestion evaluated by the subject. Nasal congestion was evaluated on a 0-4 scale in which 0.5 unit increments were not allowed. A lower score was indicative of less severity.

Outcome measures

Outcome measures
Measure
Group 1
n=34 Participants
1X ST266 dosed 4 times a day for 8 days ST266: One (1) drop of 1X ST266 ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Group 2
n=36 Participants
Placebo dosed 4 times a day for 8 days Saline (0.9% NaCl): One (1) drop of saline ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Nasal Congestion
Day 7, Pre-Conjunctival Allergen Challenge
0.67 score on a scale
Standard Deviation 0.816
0.42 score on a scale
Standard Deviation 0.906
Nasal Congestion
Day 7, 10 Minutes Post Conjunctival Allergen Challenge
1.44 score on a scale
Standard Deviation 1.160
1.47 score on a scale
Standard Deviation 1.230
Nasal Congestion
Day 7, 15 Minutes Post Conjunctival Allergen Challenge
1.41 score on a scale
Standard Deviation 1.048
1.36 score on a scale
Standard Deviation 1.099
Nasal Congestion
Day 7, 20 Minutes Post Conjunctival Allergen Challenge
1.24 score on a scale
Standard Deviation 0.987
1.22 score on a scale
Standard Deviation 1.072
Nasal Congestion
Day 7, 25 Minutes Post Conjunctival Allergen Challenge
1.15 score on a scale
Standard Deviation 0.989
1.22 score on a scale
Standard Deviation 1.174
Nasal Congestion
Day 7, 30 Minutes Post Conjunctival Allergen Challenge
1.12 score on a scale
Standard Deviation 1.008
1.17 score on a scale
Standard Deviation 1.159
Nasal Congestion
Day 8, pre-Conjunctival Allergen Challenge
0.47 score on a scale
Standard Deviation 0.662
0.33 score on a scale
Standard Deviation 0.717
Nasal Congestion
Day 8, 10 Minutes Post Conjunctival Allergen Challenge
1.29 score on a scale
Standard Deviation 1.060
1.36 score on a scale
Standard Deviation 1.199
Nasal Congestion
Day 8, 15 Minutes Post Conjunctival Allergen Challenge
1.35 score on a scale
Standard Deviation 1.070
1.39 score on a scale
Standard Deviation 1.293
Nasal Congestion
Day 8, 20 Minutes Post Conjunctival Allergen Challenge
1.26 score on a scale
Standard Deviation 1.024
1.28 score on a scale
Standard Deviation 1.279
Nasal Congestion
Day 8, 25 Minutes Post Conjunctival Allergen Challenge
1.18 score on a scale
Standard Deviation 0.968
1.28 score on a scale
Standard Deviation 1.210
Nasal Congestion
Day 8, 30 Minutes Post Conjunctival Allergen Challenge
1.15 score on a scale
Standard Deviation 1.048
1.22 score on a scale
Standard Deviation 1.222

SECONDARY outcome

Timeframe: Day 7 and 8

Population: Pre-Conjunctival Allergen Challenge not evaluated in subject 1-011 on visit 5B

A composite score of presence or absence of at least one nasal symptom evaluated by the subject

Outcome measures

Outcome measures
Measure
Group 1
n=34 Participants
1X ST266 dosed 4 times a day for 8 days ST266: One (1) drop of 1X ST266 ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Group 2
n=36 Participants
Placebo dosed 4 times a day for 8 days Saline (0.9% NaCl): One (1) drop of saline ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Nasal Composite Score
Day 7, Pre-Conjunctival Allergen Challenge · Absent
11 Participants
23 Participants
Nasal Composite Score
Day 7, Pre-Conjunctival Allergen Challenge · PResent
22 Participants
13 Participants
Nasal Composite Score
Day 7, 10 Minutes Post Conjunctival Allergen Challenge · Absent
2 Participants
2 Participants
Nasal Composite Score
Day 7, 10 Minutes Post Conjunctival Allergen Challenge · PResent
32 Participants
34 Participants
Nasal Composite Score
Day 7, 15 Minutes Post Conjunctival Allergen Challenge · Absent
2 Participants
2 Participants
Nasal Composite Score
Day 7, 15 Minutes Post Conjunctival Allergen Challenge · PResent
32 Participants
34 Participants
Nasal Composite Score
Day 7, 20 Minutes Post Conjunctival Allergen Challenge · Absent
3 Participants
3 Participants
Nasal Composite Score
Day 7, 20 Minutes Post Conjunctival Allergen Challenge · PResent
31 Participants
33 Participants
Nasal Composite Score
Day 7, 25 Minutes Post Conjunctival Allergen Challenge · Absent
5 Participants
4 Participants
Nasal Composite Score
Day 7, 25 Minutes Post Conjunctival Allergen Challenge · PResent
29 Participants
32 Participants
Nasal Composite Score
Day 7, 30 Minutes Post Conjunctival Allergen Challenge · Absent
4 Participants
4 Participants
Nasal Composite Score
Day 7, 30 Minutes Post Conjunctival Allergen Challenge · PResent
30 Participants
32 Participants
Nasal Composite Score
Day 8, pre-Conjunctival Allergen Challenge · Absent
18 Participants
26 Participants
Nasal Composite Score
Day 8, pre-Conjunctival Allergen Challenge · PResent
16 Participants
10 Participants
Nasal Composite Score
Day 8, 10 Minutes Post Conjunctival Allergen Challenge · Absent
1 Participants
2 Participants
Nasal Composite Score
Day 8, 10 Minutes Post Conjunctival Allergen Challenge · PResent
33 Participants
34 Participants
Nasal Composite Score
Day 8, 15 Minutes Post Conjunctival Allergen Challenge · Absent
2 Participants
3 Participants
Nasal Composite Score
Day 8, 15 Minutes Post Conjunctival Allergen Challenge · PResent
32 Participants
33 Participants
Nasal Composite Score
Day 8, 20 Minutes Post Conjunctival Allergen Challenge · Absent
4 Participants
4 Participants
Nasal Composite Score
Day 8, 20 Minutes Post Conjunctival Allergen Challenge · PResent
30 Participants
32 Participants
Nasal Composite Score
Day 8, 25 Minutes Post Conjunctival Allergen Challenge · Absent
2 Participants
5 Participants
Nasal Composite Score
Day 8, 25 Minutes Post Conjunctival Allergen Challenge · PResent
32 Participants
31 Participants
Nasal Composite Score
Day 8, 30 Minutes Post Conjunctival Allergen Challenge · Absent
3 Participants
6 Participants
Nasal Composite Score
Day 8, 30 Minutes Post Conjunctival Allergen Challenge · PResent
31 Participants
30 Participants

Adverse Events

Group 1

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

Group 2

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Group 1
n=34 participants at risk
1X ST266 dosed 4 times a day for 8 days ST266: One (1) drop of 1X ST266 ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Group 2
n=36 participants at risk
Placebo dosed 4 times a day for 8 days Saline (0.9% NaCl): One (1) drop of saline ophthalmic eye drops will be administered to each eye 4 times a day for 8 days.
Eye disorders
Visual Acuity Reduced
2.9%
1/34 • Number of events 1 • Adverse events were assessed for subjects over a period of 8 days during active treatment. If an AE was unresolved at the final study visit Investigators were instructed to follow-up with subjects until the AE resolved or they were lost to follow-up. If the patient is lost to follow-up, the Investigator should make 3 reasonable attempts to contact the patient via telephone, post, or certified mail.
0.00%
0/36 • Adverse events were assessed for subjects over a period of 8 days during active treatment. If an AE was unresolved at the final study visit Investigators were instructed to follow-up with subjects until the AE resolved or they were lost to follow-up. If the patient is lost to follow-up, the Investigator should make 3 reasonable attempts to contact the patient via telephone, post, or certified mail.
Infections and infestations
Infected Bite
2.9%
1/34 • Number of events 1 • Adverse events were assessed for subjects over a period of 8 days during active treatment. If an AE was unresolved at the final study visit Investigators were instructed to follow-up with subjects until the AE resolved or they were lost to follow-up. If the patient is lost to follow-up, the Investigator should make 3 reasonable attempts to contact the patient via telephone, post, or certified mail.
0.00%
0/36 • Adverse events were assessed for subjects over a period of 8 days during active treatment. If an AE was unresolved at the final study visit Investigators were instructed to follow-up with subjects until the AE resolved or they were lost to follow-up. If the patient is lost to follow-up, the Investigator should make 3 reasonable attempts to contact the patient via telephone, post, or certified mail.
Nervous system disorders
Headache
0.00%
0/34 • Adverse events were assessed for subjects over a period of 8 days during active treatment. If an AE was unresolved at the final study visit Investigators were instructed to follow-up with subjects until the AE resolved or they were lost to follow-up. If the patient is lost to follow-up, the Investigator should make 3 reasonable attempts to contact the patient via telephone, post, or certified mail.
8.3%
3/36 • Number of events 3 • Adverse events were assessed for subjects over a period of 8 days during active treatment. If an AE was unresolved at the final study visit Investigators were instructed to follow-up with subjects until the AE resolved or they were lost to follow-up. If the patient is lost to follow-up, the Investigator should make 3 reasonable attempts to contact the patient via telephone, post, or certified mail.

Additional Information

David Steed, MD

Noveome Biotherapeutics, Inc

Phone: 4124029913

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place