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CompletedNCT02322216Updated Nov 17, 2017Results posted

Olopatadine Hydrochloride Ophthalmic Solution Study in Chinese Subjects

A Phase 3 interventional study of Olopatadine Hydrochloride Ophthalmic Solution 0.2% and Olopatadine Hydrochloride Ophthalmic Solution 0.1% in Allergic Conjunctivitis, sponsored by Alcon Research. Completed. Open to participants aged 10 Years and older. Per ClinicalTrials.gov, last updated 2017-11-17.

Sponsored by Alcon Research · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
383
Allocation
Randomized
Ages
10 Years and older
Sex
All
01

Study summary

The purpose of this study is to evaluate olopatadine 0.2% QD (once per day) compared to olopatadine 0.1% BID (twice per day) in the treatment of ocular itching associated with allergic conjunctivitis.

02

Conditions studied

  • Allergic Conjunctivitis

Keywords

  • Allergies
  • Ocular
03

In context

Conjunctivitis

361 studies on the registry are indexed under Conjunctivitis; 17 are open to participants now.

This study's enrollment of 383 is above the median of 100 across 299 interventional studies indexed under Conjunctivitis.

Browse Conjunctivitis studies →

Lead sponsor

Alcon Research is the lead sponsor of 608 studies on the registry; 9 are open to participants now.

Of its 109 completed or terminated interventional studies of FDA-regulated products, 99 (91%) have results posted.

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

04

Who can participate

Ages eligible
10 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Chinese ethnicity;
  • History of allergic conjunctivitis within the last 2 years;
  • Positive skin prick test or skin intradermal test documented by a lab report within 24 months of, or at the baseline visit;
  • Clinical diagnosis of allergic conjunctivitis with specific signs and symptoms;
  • Understand and sign an informed consent form;
  • Willing and able to make required study visits and follow study instructions, and comply with dosing study medication as instructed;
  • Other protocol-specified inclusion criteria may apply.

Exclusion criteria

Exclusion Criteria:

  • Contraindications or hypersensitivity to study medications or their components;
  • Best-corrected visual acuity (BCVA) score worse than 55 ETDRS letters (equivalent to approximately 0.60 logMAR, 20/80 Snellen, or 0.25 decimal) in either eye;
  • Any ocular condition that could affect the study outcomes;
  • Presumed or actual ocular infection or history of ocular herpes in either eye;
  • Known history of retinal detachment, diabetic retinopathy, or any progressive retinal disease;
  • Willing and able to avoid the use of any other topical ocular medication(s) (including artificial tear products);
  • Any significant illness that could be expected to interfere with the study, particularly any autoimmune disease;
  • Intraocular surgery in either eye within 6 months, or ocular laser surgery in either eye within 3 months, or anticipation of ocular surgery during the study; ocular trauma in either eye within 3 months of baseline visit;
  • Clinically relevant recent (within 6 months of baseline visit) history of or current severe, unstable, or uncontrolled cardiovascular, pulmonary, hepatic, renal, autoimmune disease and other relevant systemic diseases that would preclude the safe administration of a topical antihistamine/mast cell stabilizer in the opinion of the Investigator;
  • Use of systemic medication(s) on a chronic dosing regimen for less than 1 month or have changed dosage within the month prior to baseline visit;
  • Use of any disallowed medication (topical, topical ophthalmic, systemic and/or injectable) during the period indicated prior to baseline visit. These medications are also not allowed during the study. Disallowed medications include all anti-allergy therapies including those contained in prescription or over-the-counter sleeping aids;
  • Use of cold compresses on the eyes during the course of the study;
  • Cannot be dosed in both eyes;
  • Cannot avoid contact lens wear during the course of the study;
  • Therapy with another investigational agent within 30 days of baseline visit, or during the study;
  • Women of childbearing potential who are pregnant, intend to become pregnant during the study period, breast-feeding, or not using adequate birth control methods;
  • Other protocol-specified exclusion criteria may apply.
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Investigator)
Enrollment
383 participants (actual)

Study arms

  • Experimental
    PATADAY

    Olopatadine hydrochloride ophthalmic solution 0.2% in the morning and olopatadine 0.2% vehicle in the evening, 1 drop in each eye for 14 days

    Drug: Olopatadine Hydrochloride Ophthalmic Solution 0.2% · Drug: Olopatadine 0.2% Vehicle

  • Active comparator
    PATANOL

    Olopatadine hydrochloride ophthalmic solution 0.1%, 1 drop in each eye in the morning and evening, for 14 days

    Drug: Olopatadine Hydrochloride Ophthalmic Solution 0.1%

Interventions

  • DrugOlopatadine Hydrochloride Ophthalmic Solution 0.2%

    Also known as: PATADAY®

  • DrugOlopatadine Hydrochloride Ophthalmic Solution 0.1%

    Also known as: PATANOL®

  • DrugOlopatadine 0.2% Vehicle

    Inactive ingredients used as placebo comparator

06

What researchers measure

Primary outcomes

  1. Change From Baseline in Worst Ocular Itching Score During the 24 Hours Prior at Day 14

    Severity of ocular itching was evaluated as the worst score observed in the past 24 hours prior to each study visit. Ocular itching was assessed by the participant on a scale from 0-4, where 0=None and 4=Incapacitating itch. One eye (study eye) contributed to the analysis.

    Time frame: Baseline, Day 14

07

Results

Posted Oct 12, 2016

Participant flow

Participants were recruited from 10 study centers located in China.

Participant flow — Overall Study
MilestonePATADAYPATANOL
Started126127
Treated (safety set)126126
Per protocol set (pps)123122
Completed124123
Not completed24
Withdrew: Adverse event10
Withdrew: Withdrawal by subject14

Outcome measures

PrimaryChange From Baseline in Worst Ocular Itching Score During the 24 Hours Prior at Day 14

Severity of ocular itching was evaluated as the worst score observed in the past 24 hours prior to each study visit. Ocular itching was assessed by the participant on a scale from 0-4, where 0=None and 4=Incapacitating itch. One eye (study eye) contributed to the analysis.

Time frame:
Baseline, Day 14
Reported as:
Mean · units on a scale
Change From Baseline in Worst Ocular Itching Score During the 24 Hours Prior at Day 14
units on a scalePATADAYPATANOL
Change From Baseline in Worst Ocular Itching Score During the 24 Hours Prior at Day 14-2.57 ± 0.090-2.62 ± 0.092

Adverse events

Collected over Adverse events (AEs) were collected from the time of informed consent and for the duration of participation in the study (2 weeks). This analysis group includes all participants who received study treatment. Ocular adverse events are presented for both study eye and non-study eye combined. AEs are reported as pre-treatment and treatment-emergent.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Pre-treatment—0/383 (0%)0/383 (0%)
PATADAY—0/126 (0%)0/126 (0%)
PATANOL—0/126 (0%)0/126 (0%)

Baseline characteristics

This analysis population includes all participants who were randomized, received drug, had at least one on-therapy visit, satisfied inclusion/exclusion criteria, and had no major protocol deviations (Per Protocol Set).

Age, Continuous
Age, Continuous(years)PATADAYPATANOLTotal
Mean32.5 ± 13.7231.9 ± 12.7932.2 ± 13.24
Sex: Female, Male
Sex: Female, Male(Participants)PATADAYPATANOLTotal
Female8186167
Male423678
Itching Score
Itching Score(units on a scale)PATADAYPATANOLTotal
Mean3.35 ± 0.3773.43 ± 0.3733.39 ± 0.376
08

Study locations

No study locations are listed for this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 17, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02322216
Lead sponsor
Alcon Research
Responsible party
Sponsor
First posted
Dec 23, 2014
Start date
Dec 2014
Primary completion
Oct 2015
Completion
Oct 2015
Results posted
Oct 12, 2016
Last update
Nov 17, 2017

Study contacts

Master, Clinical Medicine
study director · Alcon (China) Ophthalmic Product Co., Ltd.

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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

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