Vigabatrin With High Dose Prednisolone Combination Therapy vs Vigabatrin Alone for Infantile Spasm

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age2-14
SponsorKullasate Sakpichaisakul

About this trial

Infantile spasms (IS) are seizures associated with a severe infantile epileptic encephalopathy. Both cessation of spasms and electrographic response are necessary for the best neurodevelopmental outcomes. Adrenocorticotrophic hormone (ACTH), or prednisolone, or vigabatrin are considered the first-line treatment individually. However, ACTH expense and availability are the barriers in developing countries including Thailand. Vigabatrin, therefore, is the first recommended by Epilepsy Society of Thailand due to ACTH unavailability. Recently, combined steroid treatments (either ACTH or high dose prednisolone) with vigabatrin are superior in cessation of spasms compared to steroid treatment alone. Thus, this study is aimed to compare the efficacy of vigabatrin with high dose prednisolone combination therapy and vigabatrin alone.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age at 2-14 months at date of enrollment

Clinical diagnosis of infantile spasm assessed by pediatric neurologist and hypsarrhythmic pattern or variants interpreted by pediatric epileptologist

Thai nationality

Disqualifiers

Previous treatment (within the last 28 days) with vigabatrin or corticosteroid

Previous diagnosis of epileptic encephalopathy e.g. early infantile epileptic encephalopathy and early myoclonic epileptic encephalopathy

Has a clinical suspicious or diagnosis of tuberous sclerosis complex characterized by one of these; known affected parent, previously diagnosed cardiac rhabdomyoma, hypomelanotic macules, forehead fibrous plaque, shagreen patch, retinal phakoma, or known polycystic kidneys

A contraindication to vigabatrin or corticosteroid such as recent varicella or herpes zoster infection, gastrointestinal hemorrhage etc.

Trial design

Design model

Parallel

Treatments tested in this trial

  • Combination therapy with vigabatrin and prednisolone

    Drug

    High dose prednisolone (40 - 60 mg/day) for 1 month combined with vigabatrin treatment (50-150 mg/kg/day) twice daily for 4 months

  • Vigabatrin Tablets

    Drug

    Vigabatrin (50-150 mg/kg/day) twice daily for 4 months

Treatment groups

250 Participants
are divided into 2 treatment groups
Group A: Combination therapy with vigabatrin and prednisoloneExperimental treatment 1 intervention
Group B: Vigabatrin aloneActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

Cessation of spasms

Defined as no witnessed spasms (either clusters or single spasms) from Day 14 to Day 42 inclusive.

Time frame
Assessed during Day 14 to Day 42 after treatment.

Secondary outcomes

1

Electrographic response

Disappearance of hypsarrhythmia defined by Burden of Amplitudes and Epileptiform Discharges (BASED) scoring system \< 2 at Day 14 and Day 43 after treatment.

Time frame
Assessed during Day 14 and Day 43 after treatment.
2

Electroclinical response

the cessation of spasms with the addition of absence of hypsarrhythmia (BASED score \< 2) on the Day 14 EEG. Valid Day 14 EEGs will be undertaken between Day 14 and Day 21 inclusive.

Time frame
Between Day 14 and Day 21.
3

Extended electroclinical response

Electroclinical response with the addition of absence of hypsarrhythmia (BASED score \< 2) on the Day 42 EEG. Valid Day 42 EEGs will be undertaken between Day 42 and Day 49 inclusive.

Time frame
Between Day 42 and Day 49.
4

The time taken to absence of spasms

Duration for clinical cessation of spasms after initiation treatment

Time frame
Day 1 to Day 14

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Kullasate Sakpichaisakul

Lead sponsor

Queen Sirikit National Institute of Child Health

Sponsor institution