Intervention: Levetiracetam
Trial phase: Not Applicable
ATC code: N03AX14
SMILES: CCC(C(N)=O)N1CCCC1=O
Sex: All
Age groups: Adult | Older Adult
Healthy volunteers: No
Participants at risk: 31
Group description: In this open label trial, all subjects will receive levetiracetam. Subjects may be titrated up to their maximum tolerated dose (MTD) or 3000 mg daily, whichever is lowest. Subjects who cannot tolerate a dose of at least 1000mg per day will be discontinued from the trial. Transmagnetic stimulation will be performed to measure cortical excitability at various intervals during the study.
Eligibility criteria:
Inclusion Criteria:

Patient is male or female between the ages of 18 and 65
Patient has an IHS diagnosis of migraine with or without aura for at least one-year prior to screening
Patient has experienced between 4 and 10 migraine headaches per month over the past six months, with at least 48 hours separating attacks
Patient is able to differentiate migraine attacks from other headache types, if applicable
Patient is not currently and has not in the 4 weeks preceding screening received prophylactic treatment for the indication of migraine
Patients daily medications have remained at a stable dose for the 4 weeks preceding screening
Patient is using or agrees to use for the duration of participation a medically acceptable form of contraception (as determined by investigator), if female of child-bearing potential
Patient has negative urine pregnancy test prior to study entry, if female of child-bearing potential
Patient is able to understand and comply with all study requirements
Patient provides written informed consent prior to any screening procedures being conducted

Exclusion Criteria:

Women who are pregnant or lactating
Patients with onset of migraine after 50 years of age
Patients who experience > 15 headache days per month
Patients who have been previously treated or are currently being treated with levitiracetam
Patients who have failed greater than 3 adequate trials of other antiepileptic drugs for the prevention of migraine.
Patients who, in the investigators opinion, have a history or have evidence of a medical or psychiatric condition that would expose them to an increased risk of a significant adverse event or would interfere with the assessments of efficacy and tolerability during this trial
Patients with an abnormal ECG that, in the investigators opinion, would expose them to increased risk of adverse events or interfere with study drug and/or analysis of efficacy/tolerability
Patients who take medication for acute treatment greater than 10 days per month over the past three months.
Patients who are allergic to or have shown hypersensitivity to compounds similar to levetiracetam
Patients with a history of significant drug or alcohol abuse within the past year
Patients who have had a suicidal ideation in the 3 months prior to screening or has a history of attempted suicide
Patients who currently have or have a history of significantly impaired renal function
Patients who have participated in an investigational drug trial in the 30 days prior to the screening visit
Patients who have a Beck Depression Inventory score of > 18 at screening
Patients who have > 0 on question number 9 of Beck Depression Inventory (Suicidal Thoughts or Wishes question)
Patients who have a defibrillator or pacemaker, an implanted medication pump, a metal plate in the skull, or metal objects inside the eye or skull (e.g. a shrapnel wound).