French Observational Study of Complications Associated With Anticoagulants and Antiplatelet Treatment in Retina/Vitreous Surgery
CLOT
1 other identifier
observational
748
1 country
1
Brief Summary
Anticoagulants and antiplatelet treatments are frequently prescribed treatments to prevent or treat thromboembolic complications and reduce morbidity and mortality related to cardiovascular risk factors. In retina/vitreous surgery, there are rare but potentially serious risks of hemmorrhagic complication resulting in irreversible loss of visual acuity. There is no clear consensus on how to proceed during the perioperative period with regard to the continuation or discontinuation of anticoagulant and antiplatelet treatments in these types of surgery. the purpose of the study is to identify complications at 1 month depending on the type of surgery with or without discontinuation of antithrombotic treatments. Practitioners are not asked to change their modus operandi. The hypothesis is that there is no excess risk of peri- or post-operative hemorrhage in retino-vitreous surgery in patients treated with antithrombotic compared to untreated patients and that therefore discontinuation of these treatments before surgery is not necessary.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Jan 2019
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 8, 2019
CompletedFirst Submitted
Initial submission to the registry
March 4, 2019
CompletedFirst Posted
Study publicly available on registry
March 5, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 19, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
July 19, 2019
CompletedFebruary 4, 2026
February 1, 2026
6 months
March 4, 2019
February 2, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Occurrence of intra-operative and postoperative hemorrhagic complications in retina/vitreous surgery
Through study completion, an average of 8 months
Study Arms (2)
Continuation of antithrombotic drugs
operation carried out without stopping anticoagulants
Stop anti thrombotic drugs
operation performed with stopping the anticoagulants
Interventions
collection of post-operative bleeding complications
Eligibility Criteria
Patients undergoing surgery
You may qualify if:
- person who has expressed willingness to participate
- person over 18 years of age
- person with a retinal-vitreous condition requiring scheduled surgery (epi-retinal membrane surgery, vitreous traction surgery, macular hole surgery).
You may not qualify if:
- person subject to legal protection (curatorship, guardianship)
- person deemed mentally incompetent
- pregnant, parturient or breastfeeding woman
- adult unwilling or unable to consent
- patient who has already participated in the study
- person with a physical or mental disability that does not allow participation.
- a person who has participated in any study of an experimental medical product within the previous 3 months
- person who experiences any of the following during the ophthalmological examination:
- severe or proliferating diabetic retinopathy
- intra-vitreal hemorrhage
- tractional retinal detachment
- subretinal or retrohyaloidal hematoma.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
CHU dijon Bourgogne
Dijon, 21000, France
Related Publications (1)
Louison S, Gabrielle PH, Soudry A, Meillon C, Blanc J, Beal G, Arsene S, Le Mer Y, Berrod JP, Kodjikian L, Creuzot-Garcher C; CFCR Research net. Perioperative risk of bleeding with antithrombotic agents in macular surgery: a national, prospective, multicentre study. Acta Ophthalmol. 2020 Dec;98(8):e991-e997. doi: 10.1111/aos.14434. Epub 2020 Apr 12.
PMID: 32279459RESULT
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 4, 2019
First Posted
March 5, 2019
Study Start
January 8, 2019
Primary Completion
July 19, 2019
Study Completion
July 19, 2019
Last Updated
February 4, 2026
Record last verified: 2026-02