
Ophthalmology Study Subject Application

Ophthalmology Study Subject Application

Ophthalmology Study Subject Application
Welcome to AniCell’s Online Trial Data Retrieval System.
The complete protocol is listed below. If you have any questions, please do not hesitate to reach out to our hotline at 480-477-0150.
IMPORTANT: Please have all results compiled prior to beginning to fill out the Results Page.
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AniCell Biotech, LLC Research Study
Summer 2020
Principal Investigators
- Robert Peiffer
- Heather Brookshire
- Jens FritscheÂ
- Thomas DulaurentÂ
- Susan CarastroÂ
- Elizabeth Lutz
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Study Information
- Study Duration: August 1-December 31, 2020
- Case Numbers: estimate 4-5 cases per PI
- Publication: Submission to Veterinary Ophthalmology or another online quick access journal
- Study Links:
https://anicellbiotech.com/ophtho-followup
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Title
Examination of Accelerated Healing Properties of Amnion Membrane Transplantation for Ocular Surface Disease in Canine and Feline Patients â Observational Case Series Study
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Hypothesis
- Dogs and cats with ocular surface disease treated with amnion post keratectomy or trauma will heal faster than the average of surgical candidates managed traditionally without applied amnion.
Mechanism involves release of soluble chemokines by the membrane which hydrolyzes over several days. It does not provide structural support nor a scaffold for fibrosis and its application may require combined use of an autologous tissue or biosynthetic graft, a third eyelid flap, or a temporary tarsorraphy. These ancillary procedures should be described in the protocol
Aim of the study:
- Evaluate the use of dehydrated amniotic membrane (Anicell) in the management of ocular surface disease in dogs and cats
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Study design:
- Multicenter prospective study
- Inclusion examples: Includes Epibulbar Melanoma (EM) in dogs, Symblepharon in cats, Ulcerative Keratitis, Feline Corneal Sequestrum (FCS), Limbal Dermoids, conjunctival defects, tumor excision, lid reconstruction, and any other ocular surface-related diseases where amnion application may be warranted.Â
- Exclusion criteria: The mechanism of action for amnion is inflammation. Use of any drug that suppresses inflammation would be contra-indicated. Animals with conditions that must be administered and cannot be weened off of NSAIDS or corticosteroids would be excluded from the study. Animals with conditions such as chronic pervasive skin allergies, osteoarthritis, or other inflammatory conditions should consult Dr. Peiffer or Brandon Ames prior to admittance to the study. A dog with Hyperadrenocorticism or high levels of inflammation may not be the best subject for this study. Please use clinical judgement when selecting cases, keeping in mind that NSAIDS and cortiosteroids are contraindicated with amnion application.
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Materials:
- Patients presented with various types of ocular surface disease, including those requiring surgical intervention.
- Product Type : single layer dehydrated amnion membrane (CanisCell AniOcular)
Methods:
- Surgery
- Analgesia, anesthesia, preparation at surgeonâs discretion, but detailed
- For cases of EM: if indicated Incisional or excisional biopsy with with a 1 mm margin around the lesion, noting depth.
- Single layer of amniotic membrane applied and held in place with third eyelid flap.
- Additional procedures (i.e. tarsorraphy, Hotz Celsius for the treatment of associated entropion) to be described
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- Post-Operative Medical Treatment
- At discretion of surgeon but detailed. Note: Topical and/or systemic corticosteroids AND NSAIDS are contraindicated with amniotic membranes
- Antibiotics either topical and/or systemic at discretion of surgeon
Examination Timepoints & Data Collection
- Baseline (D0), 7, 14, 28, & 42 days
Data Collection Metrics
- Date of examination/procedure
- Signalment
- breed, gender (intact/neutered) age, affected eye.
- History
- Duration of lesion
- Diagnoses
- Prior diagnostics, (i.e. histopathology)
- Prior medical (topical and/or systemic) management and duration or surgical management
- Pathogenesis of lesion (if known)
- Infected/non-infected based on the presence or absence of infiltrate or cytology
- Presence or absence of keratomalacia
- Associated historical or contemporary ocular /adnexal disease
- Other pertinent medical history/information
- Clinical Measurements/Descriptions
- Record location of lesion
- lesion extent- measurements (length & width in mm; depth (superficial, deep, perforating) at each evaluation
- Extent of surface involved â (baseline measurement) and % improvement/healing at each evaluation time will be calculated. Corneal healing time in days will also be determined from this data.
- Grade vascularization level (mild, moderate, severe) & depth (superficial, partial thickness, deep)
- Grade associated uveitis if present (mild, moderate, severe)
- Evaluation of transparency of healed corneal tissue (opaque, translucent, transparent)
- Images at each evaluation
- Additional procedures
- Alterations in medical regimen over time – detail
- Adverse events/complications
- spread of underlying infection to adjacent cornea or anterior chamber
- failure of amnion to be retained
- post-op infections
- post-op calcifications
- dissolution or displacement requiring replacement of amnion required
- progression of corneal disease despite application of amnion
- Disasters should be accompanied by tissue submission if possible
- Diagnostic Options
- Cytological Evaluation (with cytobrush to characterize inflammation) on days 7, 14, and 28
- On day 42Â : Snip/shave biopsy/histopathology of healed tissue (submitted flattened on a cellulose sponge and immersed in 10% formalin) to evaluate quality and extent of conjunctival/corneal regeneration
- Ultrasound Biomicroscopy (UBM) â high-resolution imaging of corneal structure
- Optical Coherence Tomography (OCT) â high-resolution cross-sectional images of cornea
- Bacterial culture and sensitivity
- PCR (for FHV 1 if applicable)
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