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EpilepsyPhase 3NCT00292461

A Study for Evaluating the Efficacy and Safety of Zonisamide and Lamotrigine (Lamictal) for Subjects With Refractory Simple Partial, Complex Partial or Partial With Secondary Generalized Seizures

A Phase 3 study testing Zonisamide and Lamotrigine in people with Epilepsy, run by Eisai Inc. at 8 sites in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to evaluate the efficacy and safety of zonisamide for anti-epilepsy drugs (AEDs) treated subjects with refractory simple partial, complex partial or partial with secondary generalized seizures. Read more about this study

Who is it for?
Ages 16 to 70 years
Conditions the study is for
Epilepsy
What is being tested?
Zonisamide and Lamotrigine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
64 participants
Where
8 sitesChina
Study dates
Mar 2006to Sep 2009
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 16 to 70 years
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Subjects must sign and date the informed consent form
  • Clinical diagnosis as refractory epilepsy

Who cannot join

  • Progressive neurologic disease
  • Serious psychiatric disease
  • Hemolytic anemia
  • G6PD (glucose-6-phosphate dehydrogenase) deficiency
  • Acute intermittent porphyrias
  • Subjects who have received study drugs (Zonisamide, Lamotrigine) in the past
Show all 17Show fewer
  • Drug or alcohol addiction
  • Renal impairment (serum creatinine ≧ 1.5 mg/dl), or hepatic abnormality (ALT or AST > 2x ULN)
  • Stevens-Johnson syndrome
  • Progressive exfoliative dermatitis
  • Pregnant, lactating or of childbearing potential female
  • Regularly taking oral contraceptives
  • Hypersensitivity to study drugs
  • Severe cardiac disease (New York Heart Association Functional Class III and IV)
  • History of malignancy within 5 years
  • Taking valproic acid within 7 days prior to screening
  • Subjects with simple partial seizures without motor component

Trial locations and contacts

8 sites in 1 country.

8 sites in 1 country

China8 sites
  • Changhua Christian Hospital

    Changhua, Taiwan

  • Chang-Gung Memorial Hospital (CGMH)

    Kaohsiung, Taiwan

  • Chang-Gung Memorial Hospital (CGMH)

    Linkou, Taiwan

  • China Medical University Hospital (CMUH)

    Taichun, Taiwan

  • National Cheng Kung University Hospital

    Tainan, Taiwan

  • Chang-Gung Memorial Hospital (CGMH)

    Taipei, Taiwan

  • Taipei Tzu Chi General Hospital

    Taipei, Taiwan

  • Taipei Veterans General Hospital

    Taipei, Taiwan

Other trials in China

About this study

The purpose of this study is to evaluate the efficacy and safety of zonisamide for anti-epilepsy drugs (AEDs) treated subjects with refractory simple partial, complex partial or partial with secondary generalized seizures.

Conditions
Epilepsy
Being tested
Zonisamide, Lamotrigine
Keywords
Epilepsy, seizures
Medical subject headings
Epilepsy, Seizures

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ZonisamideDrug

    Tablet once or twice daily orally for 16 weeks

  • LamotrigineDrug

    Tablet once daily orally for 16 weeks

Study groups in NCT00292461
Study groupRoleWhat they receive
zonisamideActive comparatortablet
Receives: Drug: Zonisamide
lamotrigineActive comparatortablet
Receives: Drug: Lamotrigine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The Percentage Change of Monthly Seizure Frequency at the End of the 16-week Treatment From Baseline

    Percentage Change of Frequency = (T-B)/B*100% T= Total seizure frequency during maintenance dose period / maintenance dose period (weeks)* 4 B= The monthly seizure frequence with one month prior to enrollment

    Measured: Baseline and 16 weeks

Secondary outcomes (3)
  1. Global Assessment of Efficacy by Physician at the End of 16-week Treatment Period

    Measured: Baseline and 16 weeks

  2. Global Assessment of Efficacy by Participants at the End of the 16-week Treatment Period

    Measured: Baseline and 16 weeks

  3. Response Rate: Defined as the Percentage of Participants With >= 50% Reduction of Monthly Seizure Frequency at the End of 16-week Treatment From Baseline.

    Measured: Baseline and 16 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted16 Feb 2006 (estimated)
  2. Study startMar 2006
  3. Primary completionAug 2009
  4. Study completionSep 2009

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
64 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00292461
Sponsor's protocol ID
E2090-AS886-202
Status last verified
Aug 2009
First submitted
14 Feb 2006
Last updated
20 May 2013

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Zonisamide and Lamotrigine in people with Epilepsy, run by Eisai Inc. at 8 sites in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 17 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 20 May 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 8 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 15 Aug 2011). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The Percentage Change of Monthly Seizure Frequency at the End of the 16-week Treatment From Baseline (time frame: Baseline and 16 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 May 2013.

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