A Study to Evaluate the Effect of Single Doses of Drug A (Lamotrigine) and Drug B (Vofopitant) Alone and in Combination on Resting Motor Threshold in Healthy Subjects

Double Blind, Double-dummy, Randomised, Placebo Controlled Study to Evaluate the Effect of Single Doses of Drug A (Lamotrigine) and Drug B (Vofopitant) Alone and in Combination on Resting Motor Threshold in Healthy Subjects

The purpose of this study is to investigate the effect of drug A on its own and when it is given in combination with drug B on markers of brain activity. The study will

1. Assess the effects of drug A and drug B on muscle movement after brain stimulation;
2. Examine how the body handles (absorbs, distributes, breaks down and gets rid of) drug A and drug B when given in combination;
3. Examine the safety of drug A and drug B when given together.

Inclusion Criteria:

• Healthy subject
• Male aged 18-65
• Greater than 50kg weight
• BMI 19-29.9 kg/m2

Exclusion Criteria:

• Positive drug/alcohol screen
• Positive HIV antibody
• History of drug dependence
• History of neurological disease
• Pacemaker
• Smoker