The objective of this study is to assess the safety, efficacy, and tolerability of SNP318 in patients with DME.

DME is a prevalent complication of diabetic retinopathy, resulting in fluid accumulation in the macula due to the leakage of fluid from damaged retinal blood vessels. It is a leading cause of vision impairment in diabetic patients and can significantly affect quality of life if left untreated. SNP318 is a small molecule and selective inhibitor of Lp-PLA2. It plays a critical role in the regulation of the pro-neuroinflammatory pathway, which is implicated in the pathogenesis of multiple diseases.

This is a phase 2a, randomized, double-masked, placebo-controlled, multicenter study to evaluate the safety, tolerability, and efficacy of SNP318 in patients with Diabetic Macular Edema. Participants who consent will undergo a 3-week screening period to evaluate their eligibility. Once enrolled, participants will be randomized to receive orally either SNP318 or placebo for up to 12 weeks, and then enter into a 4-week follow up period.

Main Inclusion Criteria:

1. Confirmed diabetes mellitus Type 1 or Type 2, with stable glycemic control
2. Center-involved DME with CST >=320 µm (Study eye)
3. BCVA between 82 and 25 letters, inclusive (Study eye)
4. BCVA score ≥ 25 letters (Non-study eye)

Main Exclusion Criteria:

1. Use of the last intravitreal anti-VEGF injection in the study eye within 90 days prior to Screening