Migraine showdown: which drug cuts headaches best?
NCT ID NCT06347497
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested two drugs, zonisamide and topiramate, to see which works better for preventing migraines. About 600 people with migraines took one of the medicines for three months. Researchers measured how much their monthly migraine days dropped and how many people had at least half fewer headache days.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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600 people
The number who actually took part.
- Started
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Apr 2024
- Finished
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Apr 2026
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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10 to 55 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * migraine patients, according to the International Classification of Headache Disorders 3rd edition, * age from 10 to 55 years, Exclusion Criteria: * Patients with major neurological disorders such as ( epilepsy, ischemic or hemorrhagic stroke, multiple sclerosis, mitochondrial diseases, brain tumors, and patients with essential tremors. * patients with major systemic diseases such as malignancy, collagen, liver, and renal diseases. * Patients with cardiovascular diseases, such as hypertension (systolic blood pressure of more than 130 and/or diastolic blood pressure of more than 85 mm/Hg on at least three different occasions), diabetes (fasting plasma glucose level \>126 mg/dl and/or casual plasma glucose \>200 mg/dl), and/or HbA1C more than 6.5. * Patients with valvular and ischemic heart diseases, bradycardia or heart blocks, congestive heart failure patients who received prophylactic treatment for migraine, patients with any contraindications to drugs used in the study patients with bronchial asthma, chronic obstructive pulmonary disease
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Kafr Elsheikh University Hospital
Kafr ash Shaykh, 33511, Egypt
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Other studies related to the condition(s) this trial covers.
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