ClinicalTrials.gg
CompletedNCT02707133Updated Dec 11, 2018

Validation of a Virtual Model of Service Delivery for Choroidal Nevi

An observational study in Choroidal Nevus, sponsored by Manchester University NHS Foundation Trust. Completed. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2018-12-11.

Sponsored by Manchester University NHS Foundation Trust · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
199
Ages
18 Years and older
Sex
All
01

Study summary

Choroidal nevomelanocytic lesions have a high prevalence affecting up to 7% of the entire population and are increasingly incidentally identified during routine eye check- ups in community optometry services. Given the tendency to err on the side of caution, there is evidence of excessive referrals challenging service delivery in both tertiary eye units and specialist ocular oncology services. Although previous studies have examined the natural history and risk factors for growth of choroidal nevomelanocytic lesions, optimal delivery of management remains uncertain. Management approaches display diversity with respect to the number and type of baseline investigations, the duration and frequency of monitoring of relevant patients. Utilisation of the skills of allied health professionals in appropriate cases would allow streamlining service delivery in a socialised healthcare system, maximise capacity, and allow community services to play an enhanced role. However, the evidence for this model of delivery is lacking. Within existing models of care for these lesions, patients are faced with delays, need for more than one attendances to the hospital and increased anxiety around prognosis.

This project aims to answer the question of whether these low-risk, bland incidental findings might possibly be managed by allied health professionals with the use of clinical imaging and specific algorithms to make appropriate management decisions. We aim to validate a model of service delivery on a virtual basis that will accommodate for capacity pressures to accept all relevant referrals, while offering a safe service and optimising patient experience of care. We will thus validate the setting up of a virtual choroidal nevomelanocytic clinic in terms of safety and patient acceptability. More specifically, the degree of agreement between management decisions made by non-medical graders on the basis of imaging data alone as opposed to gold standard decisions (clinical and imaging tests combined) is examined. Health economics analysis of the proposed service delivery model will be undertaken to demonstrate cost-effectiveness.

02

Conditions studied

  • Choroidal Nevus

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03

In context

Nevus

47 studies on the registry are indexed under Nevus; 9 are open to participants now.

This study's enrollment of 199 is above the median of 145 across 28 observational studies indexed under Nevus.

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Lead sponsor

Manchester University NHS Foundation Trust is the lead sponsor of 140 studies on the registry; 27 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
Sampling method
Non-probability sample

Study population

Patients under the care of MREH and MEH for ocular nevomelanocytic lesions (CNL) will be recruited prospectively into the study.

Eligibility criteria

All patients attending the CNL clinics of MREH/MEH who have offered will be included in the study. Patients who are then diagnosed with alternate pathologies other than CNL (erroneous referrals) will be excluded from agreement analysis. Recognition of alternate pathologies by non-medical graders will, however, be an additional outcome measure for this project. Cases of Congenital Hypertrophy of the Retinal Pigment Epithelium (CHRPE) will be classified as 'alternate pathology' for the purposes of this study. Exclusion criteria will be media opacities (cornea, lens, vitreous body) precluding adequate visualisation of fundus and incomplete set of imaging data.

Terms in these criteria, in plain language(1)

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.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
199 participants (actual)
Patient registry
No

Interventions

  • OtherNo intervention
06

What researchers measure

Primary outcomes

  1. Degree of agreement (kappa co-efficient) between management decisions reached clinically as opposed to those reached on the basis of imaging tests alone (virtual model)

    Validation of the virtual model of service delivery will be sought by calculating the degree of agreement (kappa co-efficient) between management decisions (Discharge, Review or Refer patients) reached by direct clinical examination as opposed to decisions reached through assessing imaging tests only.

    Time frame: 18 months

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 11, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02707133
Collaborators
National Institute for Health Research, United Kingdom
Responsible party
Sponsor
First posted
Mar 14, 2016
Start date
Jun 8, 2016
Primary completion
Mar 31, 2018
Completion
Mar 31, 2018
Last update
Dec 11, 2018

Oversight

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

Not currently enrolling

This study is completed, as verified in Dec 2018. You cannot join it, but the record below documents what was studied.

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Discussion

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