A Study to Evaluate the Safety and Tolerability and Explore the Efficacy of Zonisamide as add-on Therapy in Elderly Patients With Refractory Partial Seizures

NCT ID: NCT01546688

Last Updated: 2016-01-08

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE4

Total Enrollment

41 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-11-30

Study Completion Date

2011-08-31

Brief Summary

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A two arm, randomized, double-blind study comparing zonisamide with placebo. The zonisamide arm will consist of 100 subjects and the placebo arm of 50 subjects. Study medication will be administered as an add-on treatment to the subject's current 1 or 2 anti-epileptic (AEDs).

Detailed Description

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Conditions

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Epilepsy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Zonisamide at targeted daily doses of 100-500 mg/day

Group Type ACTIVE_COMPARATOR

Zonisamide at targeted daily doses of 100-500 mg/day

Intervention Type DRUG

Each group received 2 doses a day (in the morning and evening) during the Titration Period, once a day (in the evening) or BID during the Maintenance Phase, comprising 25 mg, 50 mg, or 100 mg of ZNS capsules

Placebo administered to match daily doses of 100-500 mg/day

Group Type PLACEBO_COMPARATOR

Placebo administered to match targeted daily doses of 100-500 mg/day

Intervention Type DRUG

matching placebo

Interventions

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Zonisamide at targeted daily doses of 100-500 mg/day

Each group received 2 doses a day (in the morning and evening) during the Titration Period, once a day (in the evening) or BID during the Maintenance Phase, comprising 25 mg, 50 mg, or 100 mg of ZNS capsules

Intervention Type DRUG

Placebo administered to match targeted daily doses of 100-500 mg/day

matching placebo

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Capable of maintaining a seizure daily diary or who have access to a caregiver who is prepared to complete this on the patient's behalf.
2. Able to complete the questionnaires used in this study.
3. Localization related epilepsy, with simple and/or complex partial seizures with or without secondary generalized seizures as defined by the International League Against Epilepsy (ILAE) criteria.
4. Have at least one well documented seizure in the 4 weeks preceding the Randomisation Visit (Visit 2) and are deemed to require additional AED medication.
5. Receiving at least one, but not more than two other marketed AEDs as concomitant medication, and the dosage should be stable for at least four weeks before the Screening Visit.

Exclusion Criteria

1. Seizures attributed to metabolic causes (e.g., electrolyte disturbances, hyperglycaemia).
2. Seizures which could be attributed to use of a drug.
3. Presence of primary generalised epilepsies or seizures, such as absences, myoclonic epilepsies, Lennox-Gastaut syndrome.
4. A history of eating disorders or a body weight below 40 kg.
5. A history of blood dyscrasias.
6. A history of renal stones or having risk factors for nephrolithiasis such as a family history of nephrolithiasis or hypercalciuria.
7. An increased risk factor for rhabdomyolysis such as uncontrolled hypothyroidism, personal or family history of muscle disorders.
8. Taking concomitant medication associated with nephrolithiasis and medications increasing the risk of rhabdomyolysis.
9. Taking rifampicin or drugs with anticholinergic effects.
10. Taking carbonic anhydrase inhibitors or topiramate.
11. A history of pancreatitis.
12. A history of Stevens Johnson Syndrome.
13. Elevated levels of serum creatinine \>165 Umol, or known severe hepatic impairment to the extent that the protocol dose titration schedule cannot be followed.
Minimum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Eisai Limited

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Joanna Segieth

Role: STUDY_DIRECTOR

Eisai Limited

Locations

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Klinik und Polyklinik fur Epileptologie

Bonn, , Germany

Site Status

Georg-August-Universiat Gottingen

Göttingen, , Germany

Site Status

Asklepiosklinik Barmbek

Hamburg, , Germany

Site Status

Clinical Research Hamburg

Hamburg, , Germany

Site Status

ZNS Hamburg

Hamburg, , Germany

Site Status

Universitaet Giessen / Marburg

Marburg, , Germany

Site Status

Neurologische

Siegen, , Germany

Site Status

Semmelweis University - Neurology Dept.

Budapest, , Hungary

Site Status

Synexus Magyarorszag Kft.

Budapest, , Hungary

Site Status

National Institute of Neurosurgery

Budapest, , Hungary

Site Status

County Hospital Kecskemet

Keskemet, , Hungary

Site Status

B-A-Z County Hospital - Szuleszet-Nogyogyaszat

Miskolc, , Hungary

Site Status

Sopron Medical SMO

Sopron, , Hungary

Site Status

County Hospital of Tolna

Szeksz?rd, , Hungary

Site Status

County Hospital of Zala

Zalaegerszeg, , Hungary

Site Status

S.C. Neurologia - AO "G.Brotzu"

Cagliari, , Italy

Site Status

Dip. Di neuroscienze - Centro Epilessie - Osp. Careggi

Florence, , Italy

Site Status

Dipartimento di Neuroscienze - Universita Federico II

Napoli, , Italy

Site Status

Centro Epilessia - Istituto Neurologico "Fondazione C. Mondino"

Pavia, , Italy

Site Status

Centro per la Diagnosi e Cura dell'epilessia - Policlinico Universitario di Messina

Pavia, , Italy

Site Status

Dip.to Scienze Neurologiche - III Clinica Neurologica

Roma, , Italy

Site Status

Universita di Torino - Dipt. Neuroscienze

Torino, , Italy

Site Status

Medisch Centrum Haaglanden - Lokatie Westeinde

VA Den Haag, , Netherlands

Site Status

Specjalistyczny Zaklad Opieki Zdrowotnej 'KONSYLIUM'

Kalisz, , Poland

Site Status

Specjalistyczna Praktyka Lekarska

Katowice, , Poland

Site Status

NZOZ Centermed Gabinety ?lnolekarskie

Leszno, , Poland

Site Status

Przych. Specj. I chorob Zaw. Wsi Instytut Medyc. Wsi im. W. Chodzki

Lublin, , Poland

Site Status

Oddzia Neurologiczny, Wojewdzki Szpital Specjalistyczny

Olsztyn, , Poland

Site Status

NZOZ Centrum Medyczne HCP

Późna, , Poland

Site Status

Wielospecjalistyczna Lecznica 'Zycie'

Warsaw, , Poland

Site Status

Clinical Investigation Unit; Inselspital

Bern, , Switzerland

Site Status

Spitalzentrum Biel

Biel, , Switzerland

Site Status

Epilepsie-Zentrum

Zurich, , Switzerland

Site Status

Whipps Cross university Hospital

London, , United Kingdom

Site Status

University Hospital of North Staffordshire

Stoke-on-Trent, , United Kingdom

Site Status

The Royal Cornwall Hospital

Truro, , United Kingdom

Site Status

Countries

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Germany Hungary Italy Netherlands Poland Switzerland United Kingdom

Other Identifiers

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2006-002516-10

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

E2090-E044-402

Identifier Type: -

Identifier Source: org_study_id

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