The purpose of this study is to assess the efficacy and safety of ALD403 in the prevention of migraine headache in chronic migraineurs.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Enrollment
1,121
Change From Baseline in Monthly Migraine Days
Monthly migraine days are summarized in 28-day intervals, and averaged across Weeks 1-12
Time frame: Week 1-12
75% Migraine Responder Rate
Participants with an average reduction in migraine days of at least 75% over Weeks 1 to 12, as compared with baseline.
Time frame: Week 1-12
75% Migraine Responder Rate - 4 Week
Participants with an average reduction in migraine days of at least 75% over Weeks 1 to 4, as compared with baseline.
Time frame: Week 1-4
50% Migraine Responder Rate
Participants with an average reduction in migraine days of at least 50% over Weeks 1 to 12, as compared with baseline.
Time frame: Week 1-12
Percentage of Participants With a Migraine on the Day After Dosing
The percentage of participants with a migraine on the day after dosing, where Day 0 is treatment Day and Day 1 is the day after dosing.
Time frame: Day 1
Change in Monthly Acute Medication Days
An acute medication migraine day was a day with any triptan or ergotamine use as recorded in the eDiary.
Time frame: Week 1-12
Change From Baseline of Headache Impact Test (HIT-6) Score
The HIT-6 measures the impact of headache on the participant's functional health and well-being in 6 domains: pain; role functioning (ability to carry out usual activities); social functioning; energy or fatigue; cognition; and emotional distress assessed over the prior 12-week period. The total possible scores range from 36 (no impact) to 78 (worst impact).
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Research Site
Birmingham, Alabama, United States
Research Site
Phoenix, Arizona, United States
Research Site
Little Rock, Arkansas, United States
Research Site
Carlsbad, California, United States
Research Site
Oceanside, California, United States
Research Site
Orange, California, United States
Research Site
Oxnard, California, United States
Research Site
Palo Alto, California, United States
Research Site
Redlands, California, United States
Research Site
San Diego, California, United States
...and 134 more locations
Time frame: Baseline to Week 12
Change in Migraine Prevalence From Baseline to Week 4
The avarage change in percentage of participants with a migraine on any given day during baseline and the equivalent avarage rate over Weeks 1-4.
Time frame: Baseline to Week 4
75% Headache Responder Rate
Participants with an average reduction in headache days of at least 75% over Weeks 1 to 12, as compared with baseline.
Time frame: Week 1-12
50% Headache Responder Rate
Participants with an average reduction in headache days of at least 50% over Weeks 1 to 12, as compared with baseline.
Time frame: Week 1-12
100% Migraine Responder Rate
For each 4-week period the 100% response is determined, and the result for a participant is the average rate across Weeks 1-12. If a participant has one 4-week period out of 3 with 100% response, they are included as 33%.
Time frame: Week 1-12
100% Headache Responder Rate
For each 4-week period the 100% response is determined, and the result for a participant is the average rate across Weeks 1-12. If a participant has one 4-week period out of 3 with 100% response, they are included as 33%.
Time frame: Week 1-12
Change From Baseline in Monthly Migraine Days (Weeks 13-24)
Monthly migraine days are summarized in 28-day intervals, and averaged across Weeks 13-24.
Time frame: Week 13-24
Change From Baseline in Monthly Headache Days (Weeks 1-12)
Monthly headache days are summarized in 28-day intervals, and averaged across Weeks 1-12.
Time frame: Week 1-12
Time to First Migraine After Dosing
The time to first migraine after dosing based upon the migraine data entered into the eDiary
Time frame: 32 weeks
Change From Baseline to Week 12 in Percentage of Migraines With Use of Acute Medication
The percentage of migraines with acute medication usage. Participants with no migraine will be included with a rate of zero.
Time frame: Week 1-12
Change From Baseline to Week 12 in Percentage of Headaches With Use of Acute Medication
The percentage of headaches with acute medication usage. Participants with no headaches will be included with a rate of zero.
Time frame: Week 1-12
Percent Change in Frequency of Migraine Days - Week 1-12
The percent change in frequency of migraine days from Weeks 1-12 was calculated as the number of migraine days within 4-week intervals that were then averaged up to Week 12. The difference of this estimate from baseline was calculated as the change from baseline in the frequency of migraine days over Weeks 1-12.
Time frame: Week 1-12
Percent Change in Frequency of Headache Days - Week 1-12
The percent change in frequency of headache days from Weeks 1-12 was calculated as the number of headache days within 4-week intervals that were then averaged up to Week 12. The difference of this estimate from baseline was calculated as the change from baseline in the frequency of headache days over Weeks 1-12.
Time frame: Week 1-12
Change From Baseline in Percentage of Severe Migraines
The change from baseline in percentage of migraines that are classified as severe over Weeks 1-12.
Time frame: Week 1-12
Change From Baseline in Percentage of Severe Headache
The change from baseline in percentage of headaches that are classified as severe over Weeks 1-12.
Time frame: Week 1-12
Change From Baseline in Monthly Migraine Hours, Weeks 1-12
Migraine hours are the sum of migraines within 4 week intervals, and the average 4 week duration within 12 weeks.
Time frame: Week 1-12
Change From Baseline in Monthly Headache Hours, Weeks 1-12
Headache hours are the sum of the duration of headaches within 4 week intervals, and the average 4 week duration within 12 week intervals.
Time frame: Week 1-12
Duration of Migraine-Free Intervals
The number of participants with migraine-free intervals starting within the first 2 weeks of treatment. The longest migraine free interval for each participant is recorded.
Time frame: 32 weeks
Change From Baseline of Short Form Health Survey (SF-36 v 2.0) Scale Scores
The SF-36 is a health survey containing 36 questions consisting of eight scaled scores to measure quality of life over the past 4 weeks. All scales are on a range of 0 to 100, with 0 being the worst and 100 being the best. Scales are reported separately. Increases from baseline indicate improvement.
Time frame: Baseline to Week 12
Patient Global Impression of Change (PGIC) at Week 12
The PGIC includes a single question concerning the participant's impression of the change in their disease status since the start of the study. Seven responses are possible: Very much improved, much improved, minimally improved, no change, minimally worse, much worse, very much worse.
Time frame: Week 12
Health Related Quality of Life (EQ-5D-5L) at Week 12
The EQ-5D-5L is a descriptive system of health-related quality of life states consisting of 5 dimensions/questions (mobility, self-care, usual activities, pain/discomfort, anxiety/depression) each of which can take one of five responses. The responses record five levels of severity (no problems/slight problems/moderate problems/severe problems/extreme problems) within a particular EQ-5D dimension.
Time frame: Week 12