Rugby ProfessionalsON RUGBYNCT03958110
Analysis of the Variation in Thickness of Per-papillary Retinal Optic Nerve Fibres in Professional Rugby Players
An observational study of Rugby Professionals and Concussion, run by Fondation Ophtalmologique Adolphe de Rothschild at 1 site in France.
Trial summary
The main hypothesis is that exposure to repeated shocks is associated with a greater decrease in the thickness of optical nerve fibres. In order to show a association between the occurrence of concussions (in number and severity) and the variation in the thickness of the retinal nerve fibre layer, all participating… Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Rugby Professionals, Concussion
- What is being tested?
- OCT A
- How many people
- 49 participants
- Where
- 1 siteFrance
- Study dates
- 15 Jul 2020to 10 Nov 2021
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: Professional rugby players
Who may be able to join
- Professional rugby player
Who cannot join
- impossibility to realise OCT
Trial locations and contacts
1 site in 1 country.
About this study
The main hypothesis is that exposure to repeated shocks is associated with a greater decrease in the thickness of optical nerve fibres.
In order to show a association between the occurrence of concussions (in number and severity) and the variation in the thickness of the retinal nerve fibre layer, all participating rugby players will have an ophthalmologic examination (OCT and (retinophotography) at the beginning and end of the Rugby season.
- Conditions
- Rugby Professionals, Concussion
- Being tested
- OCT A
- Keywords
- Retinophotography, OCT, Optical nerve
- Medical subject headings
- Brain Concussion
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
OCT ADiagnostic test
OCT (Optical Coherence Tomography) and Retinophotography made at the beginning and end of the Rugby season.
What is being measured
The primary outcome is the main question the study is designed to answer.
Average thickness difference of the RNFL on each eye in micrometers measured by OCT, between the beginning and the end of the season
Measured: 1 year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 May 2019
- Study start15 Jul 2020
- Primary completion7 Oct 2021
- Study completion10 Nov 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Rugby ProfessionalsStudies of the same condition, open and under way.
- More trials run by Fondation Ophtalmologique Adolphe de RothschildThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 49 participants (actual)
Sponsor and investigators
- Lead sponsor
- Fondation Ophtalmologique Adolphe de Rothschild
- Sponsor type
- Research network
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03958110
- Sponsor's protocol ID
- MMT_2019_3
- Acronym
- ON RUGBY
- Status last verified
- Nov 2021
- First submitted
- 20 May 2019
- Last updated
- 17 Nov 2021
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 17 Nov 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Analysis of the Variation in Thickness of Per-papillary Retinal Optic Nerve Fibres in Professional Rugby Players
- ClinicalTrials.gov ID
- NCT03958110
- Acronym / sponsor ID
- ON RUGBY / MMT_2019_3
- Conditions
- Rugby Professionals, Concussion
- Keywords
- Retinophotography, OCT, Optical nerve
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 49 participants (actual)
- Lead sponsor
- Fondation Ophtalmologique Adolphe de RothschildResearch network
- Study start
- 15 Jul 2020 (actual)
- Primary completion
- 7 Oct 2021 (actual)
- Study completion
- 10 Nov 2021 (actual)
- First posted
- 21 May 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The main hypothesis is that exposure to repeated shocks is associated with a greater decrease in the thickness of optical nerve fibres.
In order to show a association between the occurrence of concussions (in number and severity) and the variation in the thickness of the retinal nerve fibre layer, all participating rugby players will have an ophthalmologic examination (OCT and (retinophotography) at the beginning and end of the Rugby season.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- Professional rugby players
Key inclusion criteria (1 listed)
- Professional rugby player
Key exclusion criteria (1 listed)
- impossibility to realise OCT
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| OCT AOCT (Optical Coherence Tomography) and Retinophotography made at the beginning and end of the Rugby season. | Diagnostic test | – |
Primary outcome
Average thickness difference of the RNFL on each eye in micrometers measured by OCT, between the beginning and the end of the season
Time frame: 1 year
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Nov 2021.
- Individual participant dataSharing planned: No
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Rugby Professionals and Concussion, run by Fondation Ophtalmologique Adolphe de Rothschild at 1 site in France.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 17 Nov 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Average thickness difference of the RNFL on each eye in micrometers measured by OCT, between the beginning and the end of the season (time frame: 1 year). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Nov 2021; AzTrials last refreshed its copy on 7 Nov 2026.