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Study of Electrocardiogram (ECG) Safety of Sezaby in Neonatal Seizures

2. november 2026 oppdatert av: Sun Pharma Advanced Research Company Limited

A Prospective, Single-Arm, Open-Label Study to Assess the Effect of Sezaby™ on Electrocardiographic Safety in Patients With Neonatal Seizures

This Phase 4, multicenter, single-arm, open-label study evaluates the effect of intravenous Sezaby (phenobarbital sodium) on electrocardiographic safety, including the QT interval, in neonates with seizures.

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

This Phase 4, multicenter, single-arm, open-label study evaluates the effect of Sezaby on electrocardiographic safety, including the QT interval, in neonates with seizures. Participants will receive intravenous Sezaby and undergo electrocardiographic and safety assessments during treatment.

Studietype

Intervensjonell

Registrering (Antatt)

45

Fase

  • Fase 4

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studiesteder

  • Forente stater
    • Michigan
      • Detroit, Michigan, Forente stater, 48201
        • Site 1

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

1 sekund til 3 uker (Barn)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  1. Neonates with seizures confirmed by continuous electroencephalogram (cEEG) monitoring.
  2. Acute symptomatic seizure etiologies other than correctable metabolic abnormalities.
  3. Term or preterm infants with postnatal age less than 28 days.
  4. Body weight of at least 1 kg.
  5. Written informed consent from a parent or legal guardian.

Exclusion Criteria:

  1. Prior treatment with anticonvulsant medications.
  2. Correctable metabolic abnormalities associated with seizure cessation when corrected.
  3. Baseline QT interval corrected using Fridericia's formula (QTcF) greater than 450 milliseconds.
  4. Significant risk factors for torsade de pointes, including congenital long QT syndrome or significant cardiac disease.
  5. Renal failure.
  6. Acute porphyria.
  7. Neonates in whom death is considered imminent in the opinion of the investigator.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Annen
  • Tildeling: N/A
  • Intervensjonsmodell: Enkeltgruppeoppdrag
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Sezaby

Neonates with seizures receiving intravenous Sezaby administered as loading dose(s) followed by maintenance dosing for up to 5 days according to the study protocol.
Legemiddel: Sezaby

Sezaby (phenobarbital sodium for injection) is administered as intravenous loading and maintenance doses over a treatment period of up to 5 days for the treatment of neonatal seizures.

Andre navn:
  • Phenobarbital sodium

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change From Baseline in QT Interval Corrected Using Fridericia's Formula (QTcF)
Tidsramme: Baseline through Day 5

Change from baseline in QT interval corrected for heart rate using Fridericia's formula (QTcF) following treatment with Sezaby. QTcF values will be assessed from electrocardiogram recordings obtained during the treatment period.
Baseline through Day 5

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change From Baseline in QT Interval Corrected Using Bazett's Formula (QTcB)
Tidsramme: Baseline through Day 5

Change from baseline in QT interval corrected for heart rate using Bazett's formula (QTcB) following treatment with Sezaby.
Baseline through Day 5
Incidence of Treatment-Emergent Adverse Events
Tidsramme: First dose through Safety Follow-up (approximately 20 days)

Assessment of safety based on the incidence of treatment-emergent adverse events (TEAEs) following administration of Sezaby.
First dose through Safety Follow-up (approximately 20 days)
Change From Baseline in QTcF and QTcB Intervals in Participants With Hypoxic-Ischemic Encephalopathy (HIE) Compared With Participants Without HIE
Tidsramme: Baseline through Day 5

Change from baseline in QT interval corrected using Fridericia's formula (QTcF) and Bazett's formula (QTcB) in participants with HIE compared with participants without HIE following treatment with Sezaby.
Baseline through Day 5
Frequency of Treatment-Emergent Changes in Electrocardiogram Morphology
Tidsramme: Baseline through Day 5

Frequency of treatment-emergent changes in electrocardiogram (ECG) morphology following treatment with Sezaby.
Baseline through Day 5
Incidence of Categorical Outliers in QTcF, QTcB, Heart Rate, PR Interval, and QRS Interval
Tidsramme: Baseline through Day 5

Incidence of categorical outliers in QT interval corrected using Fridericia's formula (QTcF), QT interval corrected using Bazett's formula (QTcB), heart rate (HR), PR interval, and QRS interval following treatment with Sezaby.
Baseline through Day 5
Plasma Concentration of Phenobarbital
Tidsramme: Baseline through Day 5

Assessment of plasma concentrations of phenobarbital following administration of Sezaby.
Baseline through Day 5
A. Correlation Between Post-Conceptional Age and Change From Baseline in QTcF
Tidsramme: Baseline through Day 5

Correlation between post-conceptional age, measured in completed weeks, and change from baseline in the QT interval corrected using Fridericia's formula (QTcF), measured in milliseconds from centrally evaluated continuous 12-lead electrocardiogram recordings.

A correlation coefficient will be calculated across participants separately at each protocol-specified ECG assessment time point.
Baseline through Day 5
B. Correlation Between Post-Conceptional Age and Change From Baseline in QTcB
Tidsramme: Baseline through Day 5

Correlation between post-conceptional age, measured in completed weeks, and change from baseline in the QT interval corrected using Bazett's formula (QTcB), measured in milliseconds from centrally evaluated continuous 12-lead electrocardiogram recordings.

A correlation coefficient will be calculated across participants separately at each protocol-specified ECG assessment time point.
Baseline through Day 5
A. Correlation Between Serum Sodium Concentration and Change From Baseline in QTcF
Tidsramme: Baseline through Day 5

Correlation between daily serum sodium concentration, measured by the clinical laboratory (mmol/L), and change from baseline in the QT interval corrected using Fridericia's formula (QTcF), measured in milliseconds from centrally evaluated continuous 12-lead electrocardiogram recordings.

A correlation coefficient will be calculated across participants separately for each protocol-specified ECG assessment time point.
Baseline through Day 5
B. Correlation Between Serum Sodium Concentration and Change From Baseline in QTcB
Tidsramme: Baseline through Day 5

Correlation between daily serum sodium concentration, measured by the clinical laboratory (mmol/L), and change from baseline in the QT interval corrected using Bazett's formula (QTcB), measured in milliseconds from centrally evaluated continuous 12-lead electrocardiogram recordings.

A correlation coefficient will be calculated across participants separately for each protocol-specified ECG assessment time point.
Baseline through Day 5
C. Correlation Between Serum Potassium Concentration and Change From Baseline in QTcF
Tidsramme: Baseline through Day 5

Correlation between daily serum potassium concentration, measured by the clinical laboratory (mmol/L), and change from baseline in the QT interval corrected using Fridericia's formula (QTcF), measured in milliseconds from centrally evaluated continuous 12-lead electrocardiogram recordings.

A correlation coefficient will be calculated across participants separately for each protocol-specified ECG assessment time point.
Baseline through Day 5
D. Correlation Between Serum Potassium Concentration and Change From Baseline in QTcB
Tidsramme: Baseline through Day 5

Correlation between daily serum potassium concentration, measured by the clinical laboratory (mmol/L), and change from baseline in the QT interval corrected using Bazett's formula (QTcB), measured in milliseconds from centrally evaluated continuous 12-lead electrocardiogram recordings.
Baseline through Day 5
E. Correlation Between Serum Calcium Concentration and Change From Baseline in QTcF
Tidsramme: Baseline through Day 5

Correlation between daily serum calcium concentration, measured by the clinical laboratory (mg/dL or mmol/L per protocol laboratory reporting), and change from baseline in the QT interval corrected using Fridericia's formula (QTcF), measured in milliseconds from centrally evaluated continuous 12-lead electrocardiogram recordings.
Baseline through Day 5
F. Correlation Between Serum Calcium Concentration and Change From Baseline in QTcB
Tidsramme: Baseline through Day 5

Correlation between daily serum calcium concentration, measured by the clinical laboratory (mg/dL or mmol/L per protocol laboratory reporting), and change from baseline in the QT interval corrected using Bazett's formula (QTcB), measured in milliseconds from centrally evaluated continuous 12-lead electrocardiogram recordings.
Baseline through Day 5
A. Correlation Between Body Temperature and Change From Baseline in QTcF
Tidsramme: Baseline through Day 5

Correlation between body temperature, measured in degrees Celsius at or near each protocol-specified ECG assessment, and change from baseline in the QT interval corrected using Fridericia's formula (QTcF), measured in milliseconds from centrally evaluated continuous 12-lead electrocardiogram recordings.

A correlation coefficient will be calculated across participants separately at each protocol-specified ECG assessment time point.
Baseline through Day 5
B. Correlation Between Body Temperature and Change From Baseline in QTcB
Tidsramme: Baseline through Day 5

A correlation coCorrelation between body temperature, measured in degrees Celsius at or near each protocol-specified ECG assessment, and change from baseline in the QT interval corrected using Bazett's formula (QTcB), measured in milliseconds from centrally evaluated continuous 12-lead electrocardiogram recordings.

A correlation coefficient will be calculated across participants separately at each protocol-specified ECG assessment time point.efficient will be calculated across participants separately at each protocol-specified ECG assessment time point.
Baseline through Day 5

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Sun Pharma Advanced Research Company Limited

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

1. desember 2026

Primær fullføring (Antatt)

1. mars 2028

Studiet fullført (Antatt)

1. mars 2028

Datoer for studieregistrering

Først innsendt

13. oktober 2026

Først innsendt som oppfylte QC-kriteriene

2. november 2026

Først lagt ut (Faktiske)

6. november 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

6. november 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

2. november 2026

Sist bekreftet

1. november 2026

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • SEZA-24-01

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Ja

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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