Conditions: Chronic Migraine
Keywords: headache migraine
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 37
Healthy volunteers: no

Brief summary:
The purpose of this study is to determine if milnacipran taken twice daily is effective in reduction of headache pain.

Detailed description:
Milnacipran is a serotonin norepinephrine reubtake inhibitor (SNRI) approved for the management of fibromyalgia in the United States.

Migraine and fibromyalgia have significant co-morbidity. Of 100 patients with fibromyalgia, 76% had chronic headaches, of whom 63% had migraine. Interestingly, general measures of pain, disability, sleep quality, and psychological distress were similar in individuals with fibromyalgia with and without headache. Conversely, the prevalence of fibromyalgia in women with migraine was reported as 22%, and at a headache referral center, 36% of headache patients had fibromyalgia.

Because of significant co-morbidity, as well as the likelihood of shared pathophysiologic mechanisms, there is reason to believe that a medication effective for fibromyalgia might reduce migraine pain, especially where the pain has taken on the nature of a chronic pain disorder, as in chronic migraine. The current study evaluated the benefits of milnacipran in individuals with chronic migraine.

Patients with chronic migraine were randomized to either Milnacipran or Placebo. Patients completed 30 days of baseline followed by 90 days of headache diaries while taking assigned medication. Primary outcomes were reduction in pain severity and improvement in migraine specific quality of life (MSQ) while secondary outcomes included reduction in migraine and non-migraine headache days and symptomatic use of medication for migraine. Independent sample t-tests were used to evaluate the changes in primary and secondary measures between the two groups.

Arms:
arm 1: Oral Milnacipran titration was Day 1-2 - 12.5mg/d; Day 3-6 - 12.5mg bid; Day 7-14 - 25mg bid; Day 15 and on - 50mg bid. After the first 30 days, patients did not continue to increase the dose beyond the dose they have achieved at 30 days. At study completion medication taper as follows: patients who at their completion visit were taking 50mg bid decreased to 25mg bid for 4 days, then decreased to 12.5mg bid for 2 days, then 12.5mg once a day for one day and then stopped. Patients on 25mg bid, decreased to 12.5mg bid for 2 days, 12.5mg once a day for one day and then stopped. arm 2: Sugar Pill No active ingredients

Interventions: intervention 1: Milnacipran intervention 2: Placebo
Intervention descriptions: intervention 1: titration schedule starting with 12.5mg per day increasing to 50mg twice a day, starting with day 1 to day 90 and then taper down as appropriate for dose. intervention 2: Placebo dosing schedule was Day 1-2, 1 tablet daily, Day 3-6 BID, Day 7-14 BID, Day 15 an on through day 90 BID and taper down

Protocol document: