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Pharmacokinetics of antenatal steroidprophylaxis with betamethasone phosphate after intravenous administration

Pharmacokinetics of antenatal steroidprophylaxis with betamethasone phosphate after intravenous administration - BetaIV-Trial

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
DRKS
Registry ID
DRKS00039292
Enrollment
12
Registered
2026-03-26
Start date
2026-06-25
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

O60.0

Interventions

Group 1: - Steroid prophylaxis with 2 x 3 ampoules of Celestan solubile intravenously over 48 hours (Composition of one ampoule of Celestan solubile: 4.0 mg betamethasone dihydrogen phosphate) - 15 se

Sponsors

Universitätsfrauenklinik und Poliklinik am Klinikum Südstadt Rostock
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: - Intact singleton pregnancy - Gestational age between 23+0 and 33+6 weeks at study inclusion - Threatened preterm birth with indication for antenatal steroid prophylaxis in accordance with current medical standards

Exclusion criteria

Exclusion criteria: - Multiple pregnancies - Triple I (amniotic infection syndrome) - Therapy with systemically active corticosteroids within the last seven days prior to study inclusion and during the measurement periods - Incapacity to give consent - Impaired liver function (ASAT/ALAT > 2x the upper normal value) - Anemia with hemoglobin concentration < 6.0 mmol/L - Cardiac valve defects = II°, signs of cardiac insufficiency (= NYHA III) Study protocol BetaIV, version 2.1 - Birth within 48 hours after the start of antenatal steroid prophylaxis

Design outcomes

Primary

MeasureTime frame
Sequential measurement of the betamethasone concentration in maternal plasma with determination of the concentration–time curve, the maximum plasma concentration of betamethasone, the time to reach maximum concentration, and the plasma half-life of betamethasone, as well as the minimum concentrations at 24 hours and 48 hours.

Secondary

MeasureTime frame
The secondary endpoint of the study is to compare the above-mentioned parameters following intravenous administration with those observed for other routes of administration.

Countries

Germany

Contacts

Public ContactJohannes Stubert

Universitätsfrauenklinik und Poliklinik am Klinikum Südstadt Rostock

johannes.stubert@uni-rostock.de+49 381 4401 4525

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Aug 10, 2026