Evidence map›Paper›PMID 28652694›Full record

ArticleClinical ophthalmology (Auckland, N.Z.)2017

Pooled analysis of two studies evaluating efficacy and safety of olopatadine hydrochloride 0.77% in patients with allergic conjunctivitis.

Eugene McLaurin, Mark Bergmann, Abhijit Narvekar, Adeniyi Adewale, Paul Gomes, Gail Torkildsen

Abstract read
In one paragraph

Article in Clinical ophthalmology (Auckland, N.Z.), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Eugene McLaurinDepartment of Ophthalmology, Total Eye Care, PA, Memphis, TN.
Mark BergmannDepartment of Ophthalmology, Apex Eye, Cincinnati, OH.
Abhijit NarvekarDepartment of Ophthalmology, Alcon Research Ltd, Fort Worth, TX.
Adeniyi AdewaleDepartment of Ophthalmology, Alcon Research Ltd, Fort Worth, TX.
Paul GomesDepartment of Ophthalmology, Ora Inc.
Gail TorkildsenDepartment of Ophthalmology, Andover Eye Associates, Andover, MA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTwo individual phase 3 conjunctival allergen challenge (CAC) studies of similar design have assessed the efficacy and safety of olopatadine hydrochloride (HCl) 0.77% for the treatment of allergic conjunctivitis. The purpose of this study is to evaluate the integrated efficacy and safety of olopatadine HCl 0.77% from a larger dataset by pooling data from the two individual CAC studies.

methodsData were pooled from two phase 3, randomized, multicenter, double-masked, active- and vehicle-controlled CAC studies. The primary comparison was on ocular itching scores between olopatadine HCl 0.77% versus vehicle (at onset and 24 hours) and olopatadine HCl 0.77% versus olopatadine 0.2% (at 24 hours). Additional end points included conjunctival redness, total redness, and proportion of itching responders at onset and 24-hour duration of CAC. For both primary and secondary analysis, mixed model repeated measures analysis was used, except for proportion of ocular itching responders. Sensitivity analyses were carried out using a two-sample

resultsThis analysis included 448 patients. Olopatadine HCl 0.77% was superior to vehicle (

conclusionThis analysis confirms the findings from the individual studies. The rapid onset and prolonged duration of action (for 24 hours) of olopatadine HCl 0.77% supports once-daily dosing in the treatment of allergic conjunctivitis.

Indexed as

allergic conjunctivitisconjunctival allergen challengeconjunctival rednessocular itchingolopatadine

Identifiers

PMID28652694
PMCPMC5472412

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