An External Pilot Study to Test the Feasibility of a Randomised Controlled Trial comparing Eye Muscle Surgery against Active Monitoring for Childhood Intermittent Distance Exotropia [X(T)]

ISRCTN ISRCTN44114892
DOI https://doi.org/10.1186/ISRCTN44114892
Secondary identifying numbers 9967; HTA 09/01/20
Submission date
22/03/2011
Registration date
22/03/2011
Last edited
26/05/2015
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Eye Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English Summary

Not provided at time of registration

Contact information

Mr M Clarke
Scientific

Claremont Wing
Royal Victoria Infirmary
Queen Victoria Road
Newcastle Upon Tyne
NE1 4LP
United Kingdom

Email m.p.clarke@newcastle.ac.uk

Study information

Study designRandomised; Interventional; Design type: Not specified, Treatment
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use contact details below to request a patient information sheet
Scientific titleAn External Pilot Study to Test the Feasibility of a Randomised Controlled Trial comparing Eye Muscle Surgery against Active Monitoring for Childhood Intermittent Distance Exotropia [X(T)]
Study acronymPilot RCT comparing Surgery to Observation for Intermittent Exotropia
Study hypothesisThe aim is to design and conduct a randomised controlled trial of the clinical and cost effectiveness of immediate surgical treatment versus active monitoring in the management of intermittent exotropia in children under 16.

More details can be found at http://www.nets.nihr.ac.uk/projects/hta/090120
Protocol can be found at http://www.nets.nihr.ac.uk/__data/assets/pdf_file/0009/53100/PRO-09-01-20.pdf
Ethics approval(s)10/H0904/57
ConditionTopic: Eye; Subtopic: Eye (all Subtopics); Disease: Ophthalmology
InterventionEye muscle surgery
Intervention typeProcedure/Surgery
Primary outcome measureNumber of patients; Timepoint(s): To determine whether participating centres are likely to recruit a sufficient number of patients
Secondary outcome measures1. Pilot procedures; Timepoint(s): To pilot procedures involved in the trial including recruitment, randomisation, surgery and masking
2. Questionnaires; Timepoint(s): To identify through questionnaires reasons why parents decline permission to participate
3. Recruited patients; Timepoint(s): To determine whether recruited patients remain in allocated groups
Overall study start date01/09/2011
Overall study end date01/12/2013

Eligibility

Participant type(s)Patient
Age groupChild
Lower age limit6 Years
Upper age limit16 Years
SexBoth
Target number of participantsPlanned Sample Size: 240; UK Sample Size: 144
Participant inclusion criteria1. Age = 6 months and = 16 years
2. Diagnosis of Intermittent Exotropia on the basis of parental history and clinical examination within 6 months of recruitment
3. Newcastle Control Score of = 3
4. Minimum size of squint of 15 prism dioptres
5. If aged 4 years and over evidence of near stereopsis i.e. ability to use the eyes together
Target Gender: Male & Female; Upper Age Limit 16 years ; Lower Age Limit 6 months
Participant exclusion criteria1. Age under 6 months or over 16 years
2. Previous treatment for Intermittent Exotropia
3. Constant exotropia = 10 prism dioptres
4. Constant exotropia < 10 prism dioptres with absent near stereopsis
5. Intermittent Exotropia where near misalignment is = 10 prism dioptres more than the distance misalignment (Convergence insufficiency)
6. blyopia (poor vision) > 0.5 LogMAR in either eye
7. Structural ocular pathology
8. Significant neurodevelopmental delay
9. Families requiring translation services
Recruitment start date01/09/2011
Recruitment end date01/12/2013

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Royal Victoria Infirmary
Newcastle Upon Tyne
NE1 4LP
United Kingdom

Sponsor information

Newcastle upon Tyne Hospitals NHS Foundation Trust (UK)
Hospital/treatment centre

Claremont Wing, Royal Victoria Infirmary , Queen Victoria Road
Newcastle Upon Tyne
NE1 4LP
England
United Kingdom

ROR logo "ROR" https://ror.org/05p40t847

Funders

Funder type

Government

National Institute for Health Research (NIHR) (UK)
Government organisation / National government
Alternative name(s)
National Institute for Health Research, NIHR Research, NIHRresearch, NIHR - National Institute for Health Research, NIHR (The National Institute for Health and Care Research), NIHR
Location
United Kingdom

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol article protocol 16/10/2012 Yes No
Results article results 01/05/2015 Yes No