Evidence map›Paper›PMID 30471242›Full record

Trial reportAmerican journal of ophthalmology2019

Assessment of the Impact of an Endpoint Committee in the Ocular Hypertension Treatment Study.

Mae O Gordon, Eve J Higginbotham, Dale K Heuer, Richard K Parrish, Alan L Robin, Patricia A Morris, Deborah A Dunn, Bradley S Wilson, Michael A Kass, Ocular Hypertension Treatment Study

Registry-linked trialAbstract readClinical Trial, Phase IRandomized Controlled Trial
In one paragraph

Trial report in American journal of ophthalmology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00000125 (Ocular Hypertension Treatment Study), which is not on this map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.3field-weighted citation impact, top 20% of its field
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.

NCT00000125 phase3completednot on this map

Ocular Hypertension Treatment Study (OHTS)

TypeinterventionalSponsorWashington University School of MedicineRan1994 to 2019Enrolled1,636ConditionsOcular Hypertension, GlaucomaArmsTopical ocular hypotensive eye drops.
3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 20 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
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

10 authors at 4 institutions in 1 country.

Mae O GordonDepartment of Ophthalmology and Visual Sciences, Washington University School of Medicine, St Louis, Missouri, USA. Electronic address: mae@wustl.edu.
Eve J HigginbothamOffice of Inclusion & Diversity, Perelman School of Medicine, Philadelphia, Pennsylvania, USA.
Dale K HeuerThe Eye Institute, Medical College of Wisconsin, Milwaukee, Wisconsin, USA.
Richard K ParrishBascom Palmer Eye Institute, University of Miami School of Medicine, Miami, Florida, USA.
Alan L RobinDepartment of Ophthalmology Wilmer Institute and Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA.
Patricia A MorrisDepartment of Ophthalmology and Visual Sciences, Washington University School of Medicine, St Louis, Missouri, USA.
Deborah A DunnDepartment of Ophthalmology and Visual Sciences, Washington University School of Medicine, St Louis, Missouri, USA.
Bradley S WilsonDepartment of Ophthalmology and Visual Sciences, Washington University School of Medicine, St Louis, Missouri, USA.
Michael A KassDepartment of Ophthalmology and Visual Sciences, Washington University School of Medicine, St Louis, Missouri, USA.
Ocular Hypertension Treatment Study
Johns Hopkins University · USMedical College of Wisconsin · USOffice of Diversity and Inclusion · USUniversity of Miami · US

Funding

WASHINGTON UNIVERSITY CENTER VISION RESEARCHP30EY002687 · NEI · WASHINGTON UNIVERSITY · PI Philip Raymond Williams · 1985 to 2026
$18.4M
Ocular Hypertension Treatment Study 20-Year Follow-up: Coordinating Center GrantUG1EY025182 · NEI · WASHINGTON UNIVERSITY · PI GORDON, MAE O · 2015 to 2019
$4.9M
Ocular Hypertension Treatment Study 20-Year Follow-up: Resource Center GrantUG1EY025183 · NEI · WASHINGTON UNIVERSITY · PI KASS, MICHAEL A · 2015 to 2019
$4.0M
Ocular Hypertension Treatment Study 20-Year Follow-up: Clinical Center GrantUG1EY025181 · NEI · WASHINGTON UNIVERSITY · PI GORDON, MAE O · 2015 to 2019
$3.4M
Ocular Hypertension Treatment Study 20-Year Follow-up: Chairman's GrantUG1EY025180 · NEI · WASHINGTON UNIVERSITY · PI KASS, MICHAEL A · 2015 to 2019
$2.2M
NEI NIH HHS P30 EY002687NEI NIH HHS UG1 EY025180NEI NIH HHS UG1 EY025181NEI NIH HHS UG1 EY025182NEI NIH HHS UG1 EY025183
6 · The paper itself

Abstract

purposeTo assess the impact of a masked Endpoint Committee on estimates of the incidence of primary open-angle glaucoma (POAG) treatment efficacy and statistical power of the Ocular Hypertension Treatment Study-Phase 1, 1994-2002 (OHTS-1).

designRetrospective interrater reliability analysis of endpoint attribution by the Endpoint Committee.

methodsAfter study closeout, we recalculated estimates of endpoint incidence, treatment efficacy, and statistical power using all-cause endpoints and POAG endpoints. To avoid bias, only the first endpoint per participant is included in this report.

resultsThe Endpoint Committee reviewed 267 first endpoints from 1636 participants. The Endpoint Committee attributed 58% (155 of 267) of the endpoints to POAG. The incidence of all-cause endpoints vs POAG endpoints was 19.5% and 13.2%, respectively, in the observation group and 13.1% and 5.8%, respectively, in the medication group. Treatment effect for all-cause endpoints was a 33% reduction in risk (relative risk = 0.67, 95% confidence interval [CI] of 0.54-0.84) and a 56% reduction in risk for POAG endpoints (relative risk = 0.44, 95% CI of 0.31-0.61). Post hoc statistical power for detecting treatment effect was 0.94 for all-cause endpoints and 0.99 for POAG endpoints.

conclusionEndpoint Committee adjudication of endpoints improved POAG incidence estimates, increased statistical power, and increased calculated treatment effect by 23%. An Endpoint Committee should be considered in therapeutic trials when common ocular and systemic comorbidities, other than the target condition, could compromise study results.

Indexed as

Endpoint DeterminationAdultAntihypertensive AgentsFemaleGlaucoma, Open-AngleHumansIntraocular PressureMaleMiddle AgedOcular HypertensionOptic DiskOptic Nerve DiseasesReproducibility of ResultsRetrospective StudiesRisk FactorsTonometry, OcularAntihypertensive Agents

Identifiers

PMID30471242
PMCPMC6382552
OpenAlexW2900474431

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.