AMASS is a double-blinded randomized clinical trial with the purpose of investigating whether injection of allogeneic adipose-derived mesenchymal stem cells (ASCs) into the lacrimal gland (LG) results in increased ocular comfort compared to placebo.
AMASS is a double-blinded randomized clinical trial which will be performed at the Department of Ophthalmology, University Hospital of Copenhagen, Denmark. 40 patients with severe aqueous deficient dry eye disease (ADDE) due to Sjögren's Syndrome (SS) will be recruited from the Dept. of Ophthalmology, Rigshospitalet, and allocated in ratio 1:1 to either injection of allogeneic adipose-derived mesenchymal stem cells (ASCs) or placebo (vehicle, Crystore CS10) into the lacrimal gland (LG) in one eye. We hypothesize that injection of allogeneic ASCs into the LG increases tear production and reduce inflammation resulting in increased ocular comfort compared to placebo.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
40
ASCs expanded from healthy donors. The ASC product contains 22 million ASCs/ml.
CryoStor® CS10 freeze medium
Rigshospitalet
Copenhagen, DK, Denmark
Ocular Surface Disease Index (OSDI)
The OSDI is a valid and reliable instrument for measuring dry eye disease severity
Time frame: 4 months after treatment
Non-invasive keratography tear break-up time (NIKBUT)
As measured with the Keratograph 5M (Oculus™)
Time frame: 4 months after treatment
Tear meniscus height (TMH)
As measured with the Keratograph 5M (Oculus™)
Time frame: 4 months after treatment
Schirmer's I test
Change in tear production as evaluated with the Schirmer's I test
Time frame: 4 months after treatment
Tear osmolarity
Change in tear osmolarity measured with TearLab™
Time frame: 4 months after treatment
Oxford scale
Change in staining of the ocular surface (grade 0-5 with 0 being absent corneal staining and 5 being severe corneal staining)
Time frame: 4 months after treatment
HLA anti-bodies
Development of anti-human leucocyte antigen (HLA) anti-bodies evaluated with Luminex HLA anti-body screening Development of anti-HLA anti-bodies evaluated with Luminex HLA anti-body screening Development of donor-specific HLA-antibodies
Time frame: 12 months after treatment
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