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3 RGN-259 Phase 3 Trial in Neurotrophic Keratopathy Sosne et al., International Journal of Molecular Sciences (2022) This Phase 3 randomized, placebo-controlled, double-masked clinical trial evaluated topical 0.1% RGN-259 (full-length recombinant T4 ophthalmic solution) in patients with neurotrophic keratopathy
Specifically, eligible studies included participants (P) with a confirmed diagnosis of vitamin B12 deficiency, interventions (I) involving oral or sublingual vitamin B12 administration, comparators (C) using intramuscular supplementation, and outcomes (O) reporting changes in serum vitamin B12 or homocysteine levels
The iodide salt is polar, but working stocks are typically prepared in DMSO or ethanol, then diluted into aqueous buffers
If cloudiness persists after 2-3 minutes of gentle mixing, allow the vial to sit at room temperature for a few additional minutes before attempting further gentle agitation