The Safety of Anti-viral Therapy in Preventing HBV MTCT in Pregnant Women After Discontinuation
The Safety of Anti-viral Therapy in Preventing Mother-to-child Transmission of Hepatitis B Virus in Pregnant Women After Discontinuation
Descripción general del estudio
Estado
Estado
Condiciones
Condiciones
Intervención / Tratamiento
Intervención / Tratamiento
Descripción detallada
Tipo de estudio
Tipo de estudio
Inscripción (Actual)
Inscripción
Fase
Fase
- Fase 4
Criterios de participación
Criterio de elegibilidad
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria:
- Gestational age between 24 and 28 weeks
- Detectable serum HBsAg at the Screening visit and at least 6 months prior
- Serum HBV DNA level >1,000,000 IU/mL at Screening visit
- Alanine aminotransferase (ALT) below the upper limit of normal (ULN; 40 IU/mL)
Exclusion Criteria:
- Patient is co-infected with hepatitis A virus, hepatitis C virus, hepatitis delta virus, hepatitis E virus or HIV.
- Patient has a history of antiviral treatment or concurrent treatment with immunomodulators, cytotoxic drugs, or steroids.
- Patient has clinical signs of threatened miscarriage in early pregnancy.
- Patient has evidence of hepatocellular carcinoma or cirrhosis.
- Patient has evidence of fetal deformity by 3-dimensional ultrasound examination.
- Patient has a husband infected with HBV.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Prevención
- Asignación: No aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Ninguno (etiqueta abierta)
Número de brazos
Armas e Intervenciones
Grupo de participantes/brazoGrupo de participantes/brazo |
Intervención / TratamientoIntervención / Tratamiento |
|---|---|
|
Experimental: Early cessation
Pregnant mothers who opted for antiviral therapy would start on oral LDT 600 mg or TDF 300 mg (as per patients' wishes) daily between gestational weeks 24 and 28.
Antiviral therapy was discontinued in intrapartum.
|
Pregnant mothers who opted for antiviral therapy would start on oral LDT 600 mg daily between gestational weeks 24 and 28.
Otros nombres:
Pregnant mothers who opted for antiviral therapy would start on oral TDF 300 mg daily between gestational weeks 24 and 28.
Otros nombres:
|
|
Experimental: Late cessation
Pregnant mothers who opted for antiviral therapy would start on oral LDT 600 mg or TDF 300 mg (as per patients' wishes) daily between gestational weeks 24 and 28.
After delivery, mothers ceased antiviral treatment at postpartum 6 weeks.
|
Pregnant mothers who opted for antiviral therapy would start on oral LDT 600 mg daily between gestational weeks 24 and 28.
Otros nombres:
Pregnant mothers who opted for antiviral therapy would start on oral TDF 300 mg daily between gestational weeks 24 and 28.
Otros nombres:
|
|
Sin intervención: Control
Eligible patients who refused antiviral therapy but consented to the study were assigned to the control arm.
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Postpartum flare incidence
Periodo de tiempo: From baseline to postpartum 12 months.
|
Time-to-event measures.
Postpartum flare was defined as an alanine aminotransferase (ALT) rise to three times baseline level or five times ULN (40U/L) within 12 months post-delivery.
Maternal would be recorded if postpartum flare occured.
At the end of postpartum 12-month follow-up period, postpartum flare incidence was measured.
|
From baseline to postpartum 12 months.
|
Medidas de resultado secundarias
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Time of flare onset
Periodo de tiempo: Baseline (i.e. at screening); at the time of delivery; at 1,2,3,6,12 month postpartum.
|
Time-to-event measures.
Time of the onset of postpartum liver damage.
|
Baseline (i.e. at screening); at the time of delivery; at 1,2,3,6,12 month postpartum.
|
|
Proportion of severe flares
Periodo de tiempo: Baseline (i.e. at screening); at the time of delivery; at 1,2,3,6,12 month postpartum.
|
As per protocol, ALT flares (>5 times baseline level or >10 times ULN) were considered severe adverse events (SAEs).
|
Baseline (i.e. at screening); at the time of delivery; at 1,2,3,6,12 month postpartum.
|
|
Peak ALT during flare
Periodo de tiempo: Baseline (i.e. at screening); at the time of delivery; at 1,2,3,6,12 month postpartum.
|
Peak ALT during postpartum flare.
|
Baseline (i.e. at screening); at the time of delivery; at 1,2,3,6,12 month postpartum.
|
|
The rate of perinatal transmission
Periodo de tiempo: 7 months after birth.
|
Perinatal transmission was established by detectable HBV DNA and HBsAg levels in the peripheral blood of infants at 7 months.
|
7 months after birth.
|
|
HBV kinetics in patients
Periodo de tiempo: Baseline (i.e. at screening); at 4-week intervals after treatment was begun up to delivery; at the time of delivery; at 1,2,3,6,12 month postpartum.
|
Changes of HBV viral load in patients treated and not treated with antiviral agents.
|
Baseline (i.e. at screening); at 4-week intervals after treatment was begun up to delivery; at the time of delivery; at 1,2,3,6,12 month postpartum.
|
|
The liver function normalization rate
Periodo de tiempo: Baseline (i.e. at screening); at 4-week intervals after treatment was begun up to delivery; at the time of delivery; at 1,2,3,6,12 month postpartum.
|
Normal liver function was defined as the value of ALT level lower 40U/L.
|
Baseline (i.e. at screening); at 4-week intervals after treatment was begun up to delivery; at the time of delivery; at 1,2,3,6,12 month postpartum.
|
|
Maternal HBsAg loss/seroconversion rate
Periodo de tiempo: Baseline (i.e. at screening); at 4-week intervals after treatment was begun up to delivery; at the time of delivery; at 1,2,3,6,12 month postpartum.
|
Measurement of the proportion of maternal hepatitis B surface antigen loss and seroconversion.
|
Baseline (i.e. at screening); at 4-week intervals after treatment was begun up to delivery; at the time of delivery; at 1,2,3,6,12 month postpartum.
|
|
Incidence of perinatal and partum complications
Periodo de tiempo: Baseline (i.e. at screening); at 4-week intervals after treatment was begun up to delivery; at the time of delivery; at 1,2,3,6,12 month postpartum.
|
Perinatal and partum complications included hypertensive disorders in pregnancy, gestational diabetes mellitus, fetal growth retardation, premature delivery, premature rupture of membrane, and postpartum hemorrhage.
|
Baseline (i.e. at screening); at 4-week intervals after treatment was begun up to delivery; at the time of delivery; at 1,2,3,6,12 month postpartum.
|
|
Birth height
Periodo de tiempo: At the time of delivery.
|
Measurement of infants' height at the time of delivery.
|
At the time of delivery.
|
|
Birth weight
Periodo de tiempo: At the time of delivery.
|
Measurement of infants' weight at the time of delivery.
|
At the time of delivery.
|
|
Neonate apgar score at 1 minute
Periodo de tiempo: At 1 minute after birth.
|
Apgar scores of neonates included activity, pulse, grimace, appearance and respiration.
|
At 1 minute after birth.
|
|
Neonate apgar score at 5 minutes
Periodo de tiempo: At 5 minutes after birth.
|
Apgar scores of neonates included activity, pulse, grimace, appearance and respiration.
|
At 5 minutes after birth.
|
|
Incidence of deformity
Periodo de tiempo: At the time of delivery; at 1, 7, 12 month postpartum.
|
The incidence of baby deformity was recorded during the postpartum follow-up period.
|
At the time of delivery; at 1, 7, 12 month postpartum.
|
|
Breastfeeding rate
Periodo de tiempo: At birth, at 1 and 7 month follow-up.
|
Breast feeding status was assessed in all infants during the postpartum follow-up period.
|
At birth, at 1 and 7 month follow-up.
|
Colaboradores e Investigadores
Patrocinador
Patrocinador
Investigadores
Investigadores
- Silla de estudio: Zhi-liang Gao, PhD, Third Affiliated Hospital, Sun Yat-Sen University
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Inicio del estudio
Finalización primaria (Actual)
Finalización primaria
Finalización del estudio (Actual)
Finalización del estudio
Fechas de registro del estudio
Enviado por primera vez
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Publicado por primera vez
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización publicada
Última actualización enviada que cumplió con los criterios de control de calidad
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
- Enfermedades del Sistema Digestivo
- Infecciones por virus de ARN
- Enfermedades virales
- Infecciones
- Infecciones transmitidas por la sangre
- Enfermedades contagiosas
- Enfermedades del HIGADO
- Hepatitis, Viral, Humana
- Infecciones por Hepadnaviridae
- Infecciones por virus de ADN
- Infecciones por enterovirus
- Infecciones por Picornaviridae
- Hepatitis Crónica
- Hepatitis B
- Hepatitis
- Hepatitis A
- Hepatitis B Crónica
- Mecanismos moleculares de acción farmacológica
- Agentes antiinfecciosos
- Agentes Antivirales
- Inhibidores de la transcriptasa inversa
- Inhibidores de la síntesis de ácidos nucleicos
- Inhibidores de enzimas
- Agentes Anti-VIH
- Agentes antirretrovirales
- Tenofovir
- Telbivudina
Otros números de identificación del estudio
Otros números de identificación del estudio
- Safety of anti-viral agents
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
Descripción del plan IPD
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
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