| Recruiting | 2/3 | 800 | Europe | Memantine Hydrochloride Oral Solution, Trazodone Hydrochloride oral solution, Placebo oral solution, Amantadine Hydrochloride Oral Solution | University of Edinburgh, University College, London, University of Warwick, NHS Lothian | Motor Neuron Disease, Amyotrophic Lateral Sclerosis | 09/26 | 12/26 | | |