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
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Detaillierte Beschreibung
Studientyp
Studientyp
Einschreibung (Tatsächlich)
Einschreibung
Phase
Phase
- Phase 4
Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
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.
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Verhütung
- Zuteilung: Nicht randomisiert
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Keine (Offenes Etikett)
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
|---|---|
|
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.
Andere Namen:
Pregnant mothers who opted for antiviral therapy would start on oral TDF 300 mg daily between gestational weeks 24 and 28.
Andere Namen:
|
|
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.
Andere Namen:
Pregnant mothers who opted for antiviral therapy would start on oral TDF 300 mg daily between gestational weeks 24 and 28.
Andere Namen:
|
|
Kein Eingriff: Control
Eligible patients who refused antiviral therapy but consented to the study were assigned to the control arm.
|
Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Postpartum flare incidence
Zeitfenster: 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.
|
Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Time of flare onset
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: At the time of delivery.
|
Measurement of infants' height at the time of delivery.
|
At the time of delivery.
|
|
Birth weight
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: At 5 minutes after birth.
|
Apgar scores of neonates included activity, pulse, grimace, appearance and respiration.
|
At 5 minutes after birth.
|
|
Incidence of deformity
Zeitfenster: 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
Zeitfenster: 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.
|
Mitarbeiter und Ermittler
Sponsor
Sponsor
Ermittler
Ermittler
- Studienstuhl: Zhi-liang Gao, PhD, Third Affiliated Hospital, Sun Yat-Sen University
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Studienbeginn
Primärer Abschluss (Tatsächlich)
Primärer Abschluss
Studienabschluss (Tatsächlich)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
- Erkrankungen des Verdauungssystems
- RNA-Virusinfektionen
- Viruserkrankungen
- Infektionen
- Durch Blut übertragene Infektionen
- Übertragbare Krankheiten
- Leberkrankheiten
- Hepatitis, viral, menschlich
- Hepadnaviridae-Infektionen
- DNA-Virusinfektionen
- Enterovirus-Infektionen
- Picornaviridae-Infektionen
- Hepatitis, chronisch
- Hepatitis B
- Hepatitis
- Hepatitis A
- Hepatitis B, chronisch
- Molekulare Mechanismen der pharmakologischen Wirkung
- Antiinfektiva
- Antivirale Mittel
- Reverse-Transkriptase-Inhibitoren
- Inhibitoren der Nukleinsäuresynthese
- Enzym-Inhibitoren
- Anti-HIV-Agenten
- Antiretrovirale Mittel
- Tenofovir
- Telbivudin
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- Safety of anti-viral agents
Plan für individuelle Teilnehmerdaten (IPD)
Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?
Beschreibung des IPD-Plans
Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
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