Landos Biopharma, Inc. announced a peer-reviewed publication describing the safety, tolerability, pharmacokinetic and clinical efficacy results for the NX-13 Phase 1b trial in patients with ulcerative colitis (UC) in the Journal of Crohn?s and Colitis. The publication, "The Safety, Tolerability, Pharmacokinetics and Clinical Efficacy of the NLRX1 agonist NX-13 in Active Ulcerative Colitis: Results of a Phase 1b Study?, reports the results of the Phase 1b trial which included 38 patients randomized to placebo (n=5), 250mg immediate release (IR) of NX-13 (n=11), 500mg IR of NX-13 (n=11) or 500mg delayed release NX-13 (n=11). NX-13 was found to be well tolerated in all patients studied.

No deaths or severe adverse events were reported and all adverse events were mild to moderate. The majority of patients treated with NX-13 for four weeks showed consistent and rapid clinical improvement in total Mayo score and in symptoms relief (as measured by rectal bleeding and stool frequency). Additionally, the endoscopic improvement observed correlated closely with symptoms improvement.

NX-13 is currently being evaluated in the NEXUS trial, a randomized, multicenter, double-blind, placebo-controlled, multiple dose, statistically powered, Phase 2 proof-of-concept study (NCT05785715) with top-line results expected in the fourth quarter of 2024.