Low dose corticosteroids to prevent respiratory issues in late preterm infants

Low Dose Antenatal Corticosteroids for Late Preterm Delivery (LoDAC Study)

Not applicable Interventional Rambam Health Care Campus · NCT05698966

This study tests if a lower dose of a steroid given to pregnant women at risk of early delivery can help prevent breathing problems in their late preterm babies.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment1510 (estimated)
Ages18 Years to 45 Years
SexAll
SponsorRambam Health Care Campus Academic / other
Locations16 sites (Afula and 15 other locations)
Trial IDNCT05698966 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the effectiveness of a reduced dose of antenatal betamethasone in preventing respiratory problems in late preterm infants born between 34 and 36 weeks of gestation. Women at high risk for late preterm delivery will be randomly assigned to receive either a full dose or a quarter dose of betamethasone, administered 24 hours apart. The main outcome measure will be the incidence of respiratory problems or neonatal death within 72 hours of delivery in both groups, aiming to determine if the lower dose is non-inferior to the standard dose.

Who should consider this trial

Good fit: Ideal candidates are pregnant women with singleton pregnancies at 34 to 36 weeks of gestation who are at high risk for late preterm delivery.

Not a fit: Patients who have already received a full course of betamethasone or are expected to deliver in less than 12 hours will not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could reduce the incidence of respiratory complications in late preterm infants while minimizing medication exposure.

How similar studies have performed: Previous studies have shown mixed results regarding the use of antenatal corticosteroids in late preterm pregnancies, indicating that while some approaches have been effective, this specific reduced dose strategy is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:- - Singleton pregnancy at 34 weeks 0 days to 36 weeks 5 days of gestation at risk for / high probability of delivery in the late preterm period (34+0-36+5 weeks of gestation).

Criteria for determination of late preterm delivery risk:

1. Preterm uterine contractions with intact membranes, and at least 3 cm dilation or 75% cervical effacement
2. Spontaneous rupture of the membranes
3. Expected preterm delivery for any other indication via induction or cesarean between 24 hours to 7 days after the planned randomization, as determined by the obstetric provider.

   \-

   Exclusion Criteria: They had already received a full course of betamethasone.
   * Expected delivery in less than 12 hours, irrespective of cause including: 1)ruptured membranes in the presence of more than 6 contractions per hour or cervical dilation of 3 centimeters or more unless oxytocin was withheld for at least 12 hours (although other induction agents were allowed), 2) chorioamnionitis, 3) cervical dilation of 8 cm or more, and 4) evidence of non-reassuring fetal status requiring immediate delivery.
   * Prior ACS treatment
   * Current known or suspected infection ( viral, bacterial or other)
   * Pre-gestational diabetes mellitus.
   * Any infection that required antibiotics or hospitalization in the month prior to study allocation - Poor understanding of the inform consent language

Where this trial is running

Afula and 15 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Respiratory MorbidityPreterm Laborcorticosteroidslow doselate prerterm
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.