Glucose-Galactose Malabsorption Watchlist (log in to enable) Retrieved 2021-01-23 Source Orphanet Trials — Genes SLC5A1, SLC5A2, ABO, SERPINA1, CXCL13, TP53, SLC2A2, PTEN, PROX1, LBP, C5AR1, LAMC2, HHEX, GH1, GFAP, CSF2, CR1, CD14, TRPV6 Drugs — Interested in hearing about new therapies? Registered! Glucose-galactose malabsorption (GGM) is a very rare, potentially lethal, genetic metabolic disease characterized by impaired glucose-galactose absorption resulting in severe watery diarrhea and dehydration with onset inthe neonatal period.