ClinicalTrials.gg
RecruitingNCT07717502RAPID-DSUpdated Aug 24, 2026

Ripening Approaches for Prompt Induction and Delivery - Sequential Versus Concurrent Dilapan-S and Misoprostol to Achieve Vaginal Delivery (RAPID-DS)

An interventional study of Sequential Cervical Ripening and Inpatient Combined Cervical Ripening in Nulliparous Women Who Scheduled for Labor Induction and Pregnancy, sponsored by Ochsner Health System. Recruiting at 1 site in United States. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-24.

Sponsored by Ochsner Health System · Not applicable, Interventional, and Health services research

From the registry’s dates

  • Started Aug 2026; still recruiting 2 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
260
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Study summary

The purpose of this study is to compare the effectiveness of sequential versus combined multimodal cervical ripening strategies to achieve vaginal delivery within 24 hours among nulliparous patients with singleton, vertex pregnancies at term undergoing induction of labor.

02

Conditions studied

  • Nulliparous Women Who Scheduled for Labor Induction
  • Pregnancy

Keywords

  • nulliparous
  • labor induction
  • cervical ripening
  • misoprostol
03

In context

Lead sponsor

Ochsner Health System is the lead sponsor of 57 studies on the registry; 7 are open to participants now.

Of its 7 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Nulliparous patients with singleton pregnancies with vertex lie at term receiving prenatal care that are eligible for outpatient cervical ripening will be eligible

Exclusion criteria

Exclusion Criteria:

  • age less than 18,
  • suspected major fetal anomalies (including suspected or proven chromosome anomalies, congenital cardiac disease expected to require neonatal intervention, and multiple anomalies suggestive of a complex syndrome),
  • fetal growth restriction
  • oligohydramnios
  • prior full thickness
  • uterine scar
  • placenta previa,
  • low-lying placenta,
  • premature rupture of amniotic membranes,
  • cervical dilation > 2 cm
  • modified Bishop score > 4
  • residence greater than 60 minutes from the hospital
05

Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
260 participants (estimated)

Study arms

  • Experimental
    Outpatient Sequential Cervical Ripening

    Those assigned to sequential cervical ripening will be scheduled with a trained physician for placement of Dilapan-STM osmotic cervical dilators in the outpatient setting at 12 to 24 hours prior to their scheduled labor and delivery admission. Upon admission to labor and delivery, sequential patients will have Dilapan-S removed during clinical vaginal exam and will receive misoprostol 25 mcg every two hours up to 8 doses until modified Bishop score is greater than 4, warranting transition to oxytocin infusion.

    Combination Product: Sequential Cervical Ripening

  • Active comparator
    Inpatient Combined Cervical Ripening

    Those randomized to scheduled induction of labor in the inpatient setting will present as scheduled to labor unit, at which time they will undergo clinical assessment and will receive placement of Dilapan-S by a trained physician along with misoprostol 25 mcg every 2 hours up to 8 doses or until clinical exam demonstrates modified Bishop score greater than 4, warranting transition to oxytocin infusion.

    Combination Product: Inpatient Combined Cervical Ripening

Interventions

  • Combination productSequential Cervical Ripening

    Those assigned to sequential cervical ripening will be scheduled with a trained physician for placement of Dilapan-STM osmotic cervical dilators in the outpatient setting at 12 to 24 hours prior to their scheduled labor and delivery admission. Upon admission to labor and delivery, sequential patients will have Dilapan-S removed during clinical vaginal exam and will receive misoprostol 25 mcg every two hours up to 8 doses until modified Bishop score is greater than 4, warranting transition to oxytocin infusion.

  • Combination productInpatient Combined Cervical Ripening

    Those randomized to scheduled induction of labor in the inpatient setting will present as scheduled to labor unit, at which time they will undergo clinical assessment and will receive placement of Dilapan-S by a trained physician along with misoprostol 25 mcg every 2 hours up to 8 doses or until clinical exam demonstrates modified Bishop score greater than 4, warranting transition to oxytocin infusion.

06

What researchers measure

Primary outcomes

  1. Number of Participants that complete vaginal delivery within 24 hours of hospital admission

    Time frame: Admission to 24 hours

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: Yes — Findings will be disseminated via abstract submissions at national obstetrical meetings along with manuscripts targeting a high impact obstetrics journal.

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Aug 2026 (actual). Primary completion is estimated for Dec 2027, 16 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 16, 2026
First posted
Jul 21, 2026
StartActual
Aug 18, 2026
Primary completionEst.
Dec 2027
CompletionEst.
Dec 2027
Last update
Aug 24, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 24, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07717502
Lead sponsor
Ochsner Health System
Collaborators
Medicem International
Responsible party
Sponsor
First posted
Jul 21, 2026
Start date
Aug 18, 2026
Primary completion
Dec 2027 (estimated)
Completion
Dec 2027 (estimated)
Last update
Aug 24, 2026

Study contacts

Frank Williams, MD
Contact
frank.williams2@ochsner.org
205-994-4820
Ken Bode
Contact
ken.bode@ochsner.org
504-842-1936

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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