A Study to Measure the Safety and Effectiveness of Zonisamide in Subjects With Migraine Headache

Sponsor

Elan Pharmaceuticals (Industry)

Overall Status

Completed

CT.gov ID

NCT00055484

Collaborator

(none)

204

Enrollment

Locations

Duration (Months)

15.7

Patients Per Site

1.1

Patients Per Site Per Month

Study Details

Study Description

Brief Summary

The purpose of this study is to determine if zonisamide is effective as a preventative medication for individuals with migraine headache.

Condition or Disease	Intervention/Treatment	Phase
Migraine Headache	Drug: zonisamide	Phase 2

Detailed Description

The pharmacologic treatment of migraine may be acute (abortive, symptomatic) or preventive (prophylactic). Preventive medication is usually given daily for months or years; however, treatment may also be given in an intermittent regimen. Most migraine prophylactic medications were designed to treat other disorders, and they can be divided into three groups:

Serotonergic or monoaminergic agents such as methysergide, which have demonstrated high degrees of effectiveness;
Non-serotonergic drugs such as beta-blockers, tricyclic antidepressants, valproate; and
Drugs with lesser demonstrated effectiveness, such as selective serotonin reuptake inhibitors, calcium channel antagonists, and non-steroidal anti-inflammatory drugs.

The choice of treatment must be individualized, and is influenced by contraindications, potential side effects, the need to treat associated symptoms like tension-type headache and insomnia, and drug cost.

Anticonvulsants, such as valproate, have shown significant degrees of efficacy in migraine prophylaxis when used in low doses. Considering the differences in proposed mechanisms of action of these agents, it is likely that a novel anticonvulsant such as zonisamide may also be an effective prophylactic treatment for migraine.

Study Design

Study Type:

Interventional

Allocation:

Randomized

Intervention Model:

Parallel Assignment

Masking:

Double

Primary Purpose:

Prevention

Official Title:

A Double-Blind, Randomized, Multicenter, Parallel Dose Study to Evaluate the Safety and Efficacy of Zonisamide 150 mg and 300 mg Per Day and Placebo in Subjects With Migraine Headache

Study Start Date :

Mar 1, 2002

Actual Study Completion Date :

May 1, 2003

Outcome Measures

Primary Outcome Measures

Eligibility Criteria

Criteria

Ages Eligible for Study:

18 Years to 65 Years

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

INCLUSION:

Subjects who meet all the following criteria will be eligible to participate in the study:

Are men or women, between the ages of 18 and 65, inclusive.
Satisfy diagnostic criteria for migraine headache, consistent with criteria described in Headache Classification Criteria.
Have at least 4 migraine attacks per 28 days [each attack separated by at least 48 hours] prior to the Screening Visit and experience at least 4 migraine attacks during the Screen/Baseline Phase.
Agree to not become pregnant during the study and agree to use an adequate method of birth control during the study such as an adequate barrier method, hormonal contraceptive, or surgical sterilization. All women of childbearing potential must have a negative pregnancy test before entering the study and during the study.
Are able to swallow the capsules whole.
Are willing and able to follow Investigator instructions and study procedures, complete the daily diary, and report adverse events.

EXCLUSION:

Subjects meeting any of the following criteria will not be eligible to participate in this study:

Have required more than 3 different rescue medications for control of a single attack anytime within 3 months prior to the Screening Visit.
Have cluster headache or chronic tension type headache and are unable to distinguish between their different types of headache.
Have basilar or hemiplegic migraine.
Have used triptans more than 3 times per week within 3 months prior to the Screening Visit.
Have received botulinum toxin injection(s) within 3 months prior to the Screening Visit.
Have taken any other prophylactic medications for migraine within 5 half-lives prior to the Baseline Visit.
Are pregnant or lactating.
Have a history or current diagnosis of psychiatric disorder likely to require pharmacological intervention (e.g., antidepressants, MAO inhibitors, antipsychotics, mood-stabilizers, anxiolytics) during the study.
Have clinically unstable cardiovascular, hepatic, renal, gastrointestinal, pulmonary, metabolic, endocrine or other systemic disease.
Have laboratory test results that, in the opinion of the Investigator, are clinically significant abnormalities.
Require treatment with any medication (e.g., daily opioids, daily beta-blockers, daily non-steroidal anti-inflammatory drugs, carbonic anhydrase inhibitors, eletriptan) or herbal supplements (e.g., St. John's Wort, ginseng, ginkgo biloba, kava kava, melatonin, petadolex) that might interact adversely with, or obscure, the action of the study medication.
Have received psychoactive medication (e.g., other anticonvulsant drugs, antidepressants, antipsychotics, anxiolytics, mood stabilizers) within 5 half-lives prior to the Baseline Visit.
Have previously enrolled in this study or previously treated with zonisamide.
Have previously failed an adequate trial of another antiepilepsy drug for the treatment of migraine.
Have a history of allergy or hypersensitivity to zonisamide or other sulfonamides.
Have a history of skin rash, without other diagnosis, associated with any medication or any medical condition.
Have a history of nephrolithiasis.
Have received an experimental drug or used an experimental device within 30 days of the Screening Visit.
Have a history of drug or alcohol abuse within 12 months prior to the Screening Visit.

Contacts and Locations

Locations

	Site	City	State	Country	Postal Code
1	Medical Affiliated Research Center	Huntsville	Alabama	United States	35801
2	University of South Alabama Medical Ctr Department of Neurology	Mobile	Alabama	United States	36693
3	Valley Neurological Headache Clinic	Phoenix	Arizona	United States	85020
4	The New England Center for Headache	Stamford	Connecticut	United States	06902
5	Radiant Research	Overland Park	Kansas	United States	66215
6	Michigan Head-Pain & Neurological Institute	Ann Arbor	Michigan	United States	48104
7	Mercy Health Research	Chesterfield	Missouri	United States	63017
8	Headache Care Center	Springfield	Missouri	United States	65804
9	Neurological Associates of Tulsa	Tulsa	Oklahoma	United States	74136
10	Thomas Jefferson University Hospital	Philadelphia	Pennsylvania	United States	19107
11	MetaClin Research	Austin	Texas	United States	19107
12	Houston Headache Clinic	Houston	Texas	United States	77004
13	Radiant Research	Salt Lake City	Utah	United States	84111