A Study of Single Ascending Doses of NI112 in Adults With Amyotrophic Lateral Sclerosis (ALS)

This is a first-in-human study of NI112, an investigational medicine given as an injection under the skin, in adults with amyotrophic lateral sclerosis (ALS). The purpose of the study is to find out how safe NI112 is, how well it is tolerated, and how the body handles it after a single dose. Up to 40 adults with ALS will take part at up to three study centers in the United States. Participants will be assigned by chance to receive either a single dose of NI112 or a single dose of placebo (sterile salt water). The study tests up to seven dose levels, one after another, beginning with the lowest dose. A Safety Review Board reviews the safety information from each group of participants before the next, higher dose is given to a new group. Each participant stays in the hospital for 24 hours after the injection for safety monitoring and blood sampling, and returns for follow-up visits on Day 8 and Day 28. The study also measures the amount of NI112 in blood and in spinal fluid.