Effects of solriamfetol on on-the-road driving in participants with narcolepsy: A randomised crossover trial

Frederick Vinckenbosch*, Gert Jan Lammers, Sebastiaan Overeem, Dan Chen, Grace Wang, Lawrence P Carter, Kefei Zhou, Johannes G. Ramaekers, Annemiek Vermeeren

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

OBJECTIVE: To evaluate the impact of solriamfetol, a dopamine and norepinephrine reuptake inhibitor, on on-the-road driving performance in participants with narcolepsy.

METHODS: In this randomised, double-blind, placebo-controlled, crossover study, driving performance during a 1 h on-road driving test was assessed at 2 and 6 h post-dose following 7 days of treatment with solriamfetol (150 mg/day for 3 days, followed by 300 mg/day for 4 days) or placebo. The primary endpoint was standard deviation of lateral position (SDLP) at 2 h post-dose.

RESULTS: The study included 24 participants (54% male; mean age, 40 years); 22 had evaluable SDLP data. At 2 h post-dose, median SDLP was significantly lower (improved) with solriamfetol compared with placebo (19.08 vs. 20.46 cm [median difference, -1.9 cm], p = 0.002). Four participants on solriamfetol and 7 on placebo had incomplete driving tests. At 6 h post-dose, median SDLP was not statistically significantly different with solriamfetol compared with placebo (19.59 vs. 19.78 cm [median difference, -1.1 cm], p = 0.125). Three participants on solriamfetol and 10 on placebo had incomplete driving tests. Common adverse events (≥5%) included headache, decreased appetite, and somnolence.

CONCLUSIONS: Solriamfetol 300 mg/day improved on-the-road driving performance, at 2 h post-administration in participants with narcolepsy.

Original languageEnglish
Article numbere2858
Number of pages10
JournalHuman Psychopharmacology-Clinical and Experimental
Volume38
Issue number1
Early online date24 Nov 2022
DOIs
Publication statusPublished - Jan 2023

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