A Phase 2/3 interventional study of Tisseel in Blepharoptosis and Ecchymosis; Eyelid, sponsored by University of Calgary. Status unknown. Open to participants aged 19 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-05-03.
Sponsored by University of Calgary · Phase 2/3, Interventional, and Prevention
This study is looking at the effect of Tisseel in eyelid surgery. Fibrin sealants (Tisseel) cause there to be less bleeding during surgery. Surgeons have used Tisseel for over two decades to reduce bruising. Ophthalmologists use it during surgery. Yet, there are no studies confirming the effect of Tisseel during eyelid surgery. Unpublished work suggests that it is effective in decreasing postoperative bruising. This study will confirm the effect of Tisseel on postoperative bruising in blepharoplasty.
The study is designed as a superiority randomized control trial. Tisseel will be used for hemostasis during the closure of one blepharoplasty incision. The side to receive Tisseel will be determined using a random number generator. After application of topical Tisseel, both eyelids will undergo standard blepharoplasty closure techniques. Pressure will be placed on both upper eyelids to mask the patient as to what side received the Tisseel.
Postoperatively, patients will take photographs on postoperative days 1, 3, 7. Photographs with poor quality not allowing accurate assessment will not be scored and that visit will not be included in the study. The photographs will be assessed by two masked ophthalmic surgeons who will rate the degree of postoperative bruising. Upper and lower eyelids of each patient will be evaluated separately. Observers will assess each side for ecchymosis using a 10-point Likert scale (1, none; 10, severe) on postoperative days 1, 3 and 7.
Given a blepharoplasty costs the healthcare system approximately $950 Canadian dollars, a vial of Tisseel ($160) would add approximately 17% to the cost (160/942.43 = 16.97%). Therefore, a 17% percent margin of superiority was used in power calculations to determine statistical efficacy of the intervention.
A power calculation for a randomized control superiority trial was performed. A 17% percent margin of superiority was used in power calculations. These variable were used to calculate for a dichotomous outcome superiority trial. The calculated sample size was calculated to be 27 in each group.
Tisseel is made from human plasma and may therefore contain infectious agents, such as viruses, that can cause disease. With over two decades of use, there has never been a reported case of hepatitis (HAV, HBV, HCV) or human immunodeficiency virus (HIV) transmission. However, Tisseel used during thoracic surgery has been associated with increased seropositivity for parvovirus B19. Although there were no complications associations with the parvovirus B19 infection observed, infection with parvo B19 can theoretically cause anemia or arthralgias, fifth disease in children, miscarriage, or rash. All patients who would be at risk of complications from such an infection were excluded.
Research is ongoing, despite the continuation of the COVID-19 pandemic. Postoperative photographs taken by the patients are used to minimize contact during care.
75 studies on the registry are indexed under Blepharoptosis; 14 are open to participants now.
This study's planned enrollment of 30 is below the median of 50 across 56 interventional studies indexed under Blepharoptosis.
Browse Blepharoptosis studies →University of Calgary is the lead sponsor of 703 studies on the registry; 196 are open to participants now.
Of its 10 completed or terminated interventional studies of FDA-regulated products, 2 (20%) have results posted.
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Exclusion Criteria:
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.
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Hypersensitivity
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Patients are undergoing bilateral blepharoplasty. In this arm (Tisseel), the patient with undergo blepharoplasty with topical Tisseel placed in the incision prior to standard closure. 1 minute of pressure will be exerted to both eyelids after closure to mask the patient as to which eyelid received the Tisseel.
Biological: Tisseel
Patients are undergoing bilateral blepharoplasty. In this arm (Control), the patient with undergo blepharoplasty with standard closure along. 1 minute of pressure will be exerted to both eyelids after closure to mask the patient as to which eyelid received the Tisseel.
Intraoperatively, the intervention side will receive topical administration of Tisseel to the blepharoplasty incision. A 2mL syringe of Tisseel product will be used as per the product monograph for an area of \< 8cm2. There will be no variation in surgical counselling or technique, with the exception of the use of Tisseel in one eyelid closure. Both eyelids will otherwise receive standard blepharoplasty surgical techniques. There will be no monitoring of compliance necessary, given the Tisseel will be utilized intraoperatively.
Bruising as defined by masked observers using a 10-point Likert scale.
Postoperative photographs will be assessed by two masked ophthalmic surgeons who will rate the degree of postoperative bruising. Upper and lower eyelids of each patient will be evaluated separately. Observers will assess each side for ecchymosis using a 10-point Likert scale (1, none; 10, severe) on postoperative days 1, 3 and 7.
Time frame: 1 week
No study locations are listed for this record.
Plan to share: No
Start is estimated for May 2022; primary completion for May 2023, 12 months later.
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This study is status unknown, as verified in Apr 2022. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Fibrin Tissue Adhesive