Core Insights - NKGen Biotech, Inc. presented updated Phase 1 clinical data for troculeucel, a novel NK cell therapy for moderate Alzheimer's disease, at the AD/PD™ 2025 conference [3][4] - The highest dose of troculeucel administered was 6 billion cells per treatment, with significant cognitive improvements observed in two out of three patients after 12 months [1][4][5] - The company plans to evaluate troculeucel's safety and efficacy in a randomized, placebo-controlled Phase 2a trial [2][4] Group 1: Clinical Trial Results - In the Phase 1/2a trial, three patients received troculeucel intravenously every three weeks, with two patients completing 17 doses and one patient completing 10 doses [4] - After 12 months, two patients improved from moderate to mild Alzheimer's disease, with one patient achieving a CDR-SB score of 4.5 [1][4][5] - No drug-related adverse reactions were reported, and all patients showed stable or improved cognitive scores across various scales [4][5] Group 2: Biomarker Analysis - At 6 months, all patients exhibited decreased levels of Glial Fibrillary Acidic Protein (GFAP) in both CSF and plasma, correlating with cognitive improvements [4][5] - Improvements in the CSF and plasma Amyloid Beta (Aβ) 42/40 ratio were noted at 12 months, while p-Tau levels remained stable [4][5] Group 3: Company Overview - NKGen Biotech is focused on developing innovative autologous and allogeneic NK cell therapeutics for neurodegenerative disorders and cancers [6][7] - Troculeucel is the International Nonproprietary Name (INN) for SNK01, marking a significant step towards market introduction [6]