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SeizuresPhase 1NCT00233012

A Study of the Pharmacokinetics, Safety and Tolerability of Topiramate in Infants (Age 1-24 Months) With Refractory Partial-onset Seizures

A Phase 1 study testing Topiramate in people with Seizures, run by Johnson & Johnson Pharmaceutical Research & Development, L.L.C..

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 pharmacokinetics safety and tolerability of topiramate in infants aged 1-24 months with refractory partial-onset seizures. Topiramate is an antiepileptic drug approved for use in adult and pediatric patients (aged 2 to 16 years) with refractory partial onset seizures (POS)… Read more about this study

Who is it for?
Ages 1 month to 24 months
Conditions the study is for
Seizures
What is being tested?
Topiramate
How many people
16 participants
Where
No sites listed yet
Study dates
Jun 2005to Oct 2007
Phase
Phase 1
Are there results?
None posted in the registry

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 1 month to 24 months
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Regular enteral feeding (solid food
  • bottle- or cup-fed) with or without breastfeeding
  • weigh >/=3.5 kilograms (kg) and <15.5 kg
  • Length using an infant measuring table (heel to crown) must be = 49 cm
  • clinical or electroencephalographic (EEG) evidence of POS (simple or complex) with or without secondary generalization of at least 1 month in duration in infants >6 months of age, or at least 2 weeks in duration in infants <6 months of age
  • Multiple seizure types allowed as long as POS is present
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  • Taking 1 or 2 concurrent marketed antiepileptic drugs (AEDs) for >1 month for infants >6 months of age and for >2 weeks for infants <6 months of age
  • the regimen of AEDs at entry must be considered inadequate in controlling seizures, after being optimized in the opinion of the investigator
  • Have had a computerized tomography or magnetic resonance imaging scan to confirm the absence of a progressive lesion such as a tumor, with the exception of lesions of tuberous sclerosis and Sturge-Weber syndrome, which are allowed.

Who cannot join

  • Exclusively breast-fed and cannot take oral liquid medication
  • Receives regular enteral feeding using gastrostomy, jejunostomy, or nasogastric tube
  • have surgically implanted and functioning vagus nerve stimulator
  • Have febrile seizures or seizures due to an acute medical illness
  • Have infantile seizures as a result of a correctable medical condition such as metabolic disturbance, toxic exposure, neoplasm, or active infection
  • History of nonepileptic seizures, either current or at any point in the past
  • Any progressive neurologic disorder, including malignancy, brain tumor, active central nervous system infection, demyelinating disease, or degenerative or progressive central nervous system disease with the exception of tuberous sclerosis and Sturge Weber syndrome.

About this study

Official title: A Randomized, Open-label (OL), Multicenter Study With OL Extension of the Pharmacokinetics and Safety of Topiramate Administered as Oral Liquid and Sprinkle Formulations as an Adjunct to Concurrent Anticonvulsant Therapy in Infants (Aged 1-24 Months, Inclusive) With Refractory Partial-onset Seizures

The purpose of this study is to evaluate the pharmacokinetics safety and tolerability of topiramate in infants aged 1-24 months with refractory partial-onset seizures. Topiramate is an antiepileptic drug approved for use in adult and pediatric patients (aged 2 to 16 years) with refractory partial onset seizures (POS) with or without secondarily generalized seizures, primary generalized tonic clonic seizures, or Lennox-Gastaut syndrome (LGS).

Read the detailed description

This is a open-label, randomized (patients are assigned different treatments based on chance), dose comparison, multicenter study of topiramate in infants of age 1-24 months with refractory partial-onset seizures (POS). The trial will evaluate the pharmacokinetics, safety, and tolerability of topiramate used as additional treatment in infants with refractory POS. Topiramate is administered as liquid and sprinkles as adjunct (additional treatment) to concurrent anticonvulsant therapy. The study will consist of 4 phases: a pretreatment phase that includes screening (up to 7 days) and baseline (1 day), an open-label treatment phase (up to 6 weeks), an open-label extension phase (54 weeks), and a posttreatment phase (up to 4 weeks). Seizure diaries will be maintained throughout the study by the patients' parents, legally acceptable representatives, or caregivers. In the open-label treatment phase, patients will be randomly assigned to 1 of 4 treatments: topiramate 3, 5, 15, or 25 mg/kg per day. Venous blood samples (four 1 milliliter [mL] samples) will be collected on 2 days during the study to determine plasma concentration of topiramate. Safety will be evaluated throughout the study by monitoring adverse events and by results from clinical laboratory tests (serum chemistry, venous ammonia, hematology, and urinalysis), electrocardiograms (ECGs), vital sign measurements (pulse and blood pressure), physical examination, neurologic examination, Vineland Scales of Adaptive Behavior, renal ultrasound, assessments for adequate food and liquid intake, hyperthermia, oligohydrosis, and rash, and take-home records. Liquid or sprinkles form of topiramate, 3,5,15,or 25mg/kg per day for 54 weeks.

Conditions
Seizures
Being tested
Topiramate
Keywords
Refractory partial-onset seizures, Infants aged 1-24 months, Pharmacokinetics, Topiramate
Medical subject headings
Seizures

What participants receive

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

  • TopiramateDrug

What is being measured

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

  1. Individual (each patient) and mean (each treatment) topiramate plasma concentration-time profiles.

Secondary outcomes (1)
  1. Incidence of adverse events throughout the study. Changes from pretreatment to the end of posttreatment phase in take-home records, clinical laboratory results, physical & neurologic examination results, ECGs, renal ultrasounds, vital sign measurements

Timeline

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

  1. First posted5 Oct 2005 (estimated)
  2. Study startJun 2005
  3. Study completionOct 2007

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 1
Enrolment
16 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00233012
Sponsor's protocol ID
CR002236
Status last verified
May 2010
First submitted
3 Oct 2005
Last updated
25 May 2010
Results posted
No

Publications

  • Ness S, Todd MJ, Wang S, Eerdekens M, Nye JS, Ford L. Adaptive behavior outcomes in infants treated with adjunctive topiramate. Pediatr Neurol. 2012 Jun;46(6):350-8. doi: 10.1016/j.pediatrneurol.2012.02.028.

    PubMed 22633629
  • Puri V, Ness S, Sattaluri SJ, Wang S, Todd M, Yuen E, Eerdekens M, Nye JS, Manitpisitkul P, Shalayda K, Ford L. Long-term open-label study of adjunctive topiramate in infants with refractory partial-onset seizures. J Child Neurol. 2011 Oct;26(10):1271-83. doi: 10.1177/0883073811406982. Epub 2011 Jun 14.

    PubMed 21673279

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Topiramate in people with Seizures, run by Johnson & Johnson Pharmaceutical Research & Development, L.L.C..

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 9 inclusion and 7 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 25 May 2010. Status can change between updates, so confirm with the study contact before making plans.

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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Individual (each patient) and mean (each treatment) topiramate plasma concentration-time profiles.. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00233012, which also lists 2 linked publications.

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 25 May 2010.

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