CClinicalTrials.gg
CompletedNCT01050647Updated Apr 9, 2019Results posted

Progesterone for the Management of Preterm, Premature Rupture of the Membranes: A Randomized Controlled Trial.

A Phase 1/2 interventional study of 17-Hydroxyprogesterone Caproate and Caster Oil injections in Pregnancy Complications, sponsored by Stanford University. Completed at 2 sites in United States. Open to female participants. Per ClinicalTrials.gov, last updated 2019-04-09.

Sponsored by Stanford University · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
21
Allocation
Randomized
Sex
Female
01

Study summary

Preterm birth is the leading cause of neonatal death and a significant cause of life long disability and health problems. It has been shown that the drug 17-hydroxyprogesterone caproate can help reduce the risk of preterm delivery in women with certain risk factors for preterm birth. We hope to learn whether this same medication can be used to prolong pregnancy in a group of patients in whom this medication has not been previously studied. Specifically, we hope to learn whether progesterone supplementation will delay delivery in women with pre-term, premature rupture of membranes (PPROM).

Read the detailed description

When women present to either the Obstetrical clinic or labor and delivery with a complaint of possible preterm, premature rupture of membranes (PPROM), they will be examined by an obstetrician to either confirm or rule out this diagnosis. If they are diagnosed with PPROM, they will then be admitted to Lucile Packard Children's Hospital and treated with the normal protocol which includes receiving antibiotics, receiving steroids, being hospitalized until delivery, and having ongoing maternal and fetal monitoring for possible complications. The patients will be identified by their treating obstetricians as possible study candidates and asked by a member of the treatment team if they are potentially interested in participating in a research study. Subsequently, a member of the study team or the treating physician will approach the patient about participating in the trial. Those who choose to participate will receive the standard care protocol in addition to receiving the study medication. The study medication will be a weekly injection of either placebo or 17-hydroxyprogesterone caproate or placebo. The placebo medication (castor oil) was chosen as it has been used in previous studies as a placebo for 17-hydroxyprogesterone caproate. The choice of which medication the patient receives will be determined by a randomization table. Only the pharmacist will be aware of the medication that has been administered. The patient, members of the treatment team, and members of the study team will be blinded to the medication that is being administered. The timing of their delivery will be managed by the treating obstetrician according to standard medical practice. After delivery, the patient's and her infant's medical outcomes will be recorded for analysis.

02

Conditions studied

  • Pregnancy Complications
03

In context

Pregnancy Complications

437 studies on the registry are indexed under Pregnancy Complications; 119 are open to participants now.

This study's enrollment of 21 is below the median of 147 across 220 interventional studies indexed under Pregnancy Complications.

Browse Pregnancy Complications studies →

Lead sponsor

Stanford University is the lead sponsor of 2,117 studies on the registry; 425 are open to participants now.

Of its 259 completed or terminated interventional studies of FDA-regulated products, 197 (76%) have results posted.

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

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  1. 18yr of age
  2. Singleton pregnancy
  3. PPROM confirmed on clinical exam
  4. GA between 24+0 and 33+5 wk
  5. Ability to understand consent in either English or Spanish

Exclusion criteria

Exclusion Criteria:

  1. Contraindication to ongoing pregnancy including:

    1. Evidence of active infection
    2. Evidence of significant placental abruption
    3. IUFD diagnosed at the time of P-PROM diagnosis
  2. Major fetal malformation
  3. Maternal allergy to progesterone or placebo drug components
  4. Current use of progesterone at the time of P-PROM
  5. Multiple Gestations
  6. Inability to understand consent in either English or Spanish
05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
21 participants (actual)

Study arms

  • Active comparator
    17-hydroxyprogesterone caproate

    Weekly injections of 17-hydroxyprogesterone caproate until patient reached 34 completed weeks of gestation

    Drug: 17-Hydroxyprogesterone Caproate

  • Placebo comparator
    Castor oil injections

    Weekly injections of Caster Oil (placebo)

    Other: Caster Oil injections

Interventions

  • Drug17-Hydroxyprogesterone Caproate

    Weekly injections of 17-hydroxyprogesterone caproate.

    Also known as: Active study drug

  • OtherCaster Oil injections

    Weekly injection of Caster Oil (Placebo) until patient reached 34 weeks gestation.

    Also known as: Placebo

06

What researchers measure

Primary outcomes

  1. Number of Participants With Achievement of 34 Weeks Gestation

    Delayed delivery until 34 weeks gestation.

    Time frame: From enrollment until delivery, an average of 34 weeks

Secondary outcomes

  1. Number of Participants With Neonatal Respiratory Distress Syndrome

    Time frame: From delivery until neonatal hospital discharge, assessed up to 2 months

  2. Number of Participants With Neonatal Grade III - IV Intraventricular Hemorrhage

    Time frame: From delivery until neonatal hospital discharge, assessed up to 2 months

  3. Number of Participants With Neonatal Necrotizing Enterocolitis

    Time frame: From delivery to neonatal discharge, assessed up to 2 months

  4. Neonatal Length of NICU and Total Hospital Stay Assessed as Number of Days

    Time frame: From birth to discharge form delivery hospital, assessed up to 2 months

  5. Length of Latency Assessed as Number of Days

    Time frame: From rupture of membranes until delivery, assessed up to 34 weeks of gestation

07

Results

Posted Apr 17, 2018

Participant flow

Participant flow — Overall Study
Milestone17-hydroxyprogesterone CaproateCastor Oil Injections
Started1011
Completed1011
Not completed00

Outcome measures

PrimaryNumber of Participants With Achievement of 34 Weeks Gestation

Delayed delivery until 34 weeks gestation.

Time frame:
From enrollment until delivery, an average of 34 weeks
Reported as:
Count of participants · Participants
Number of Participants With Achievement of 34 Weeks Gestation
Participants17-hydroxyprogesterone CaproateCastor Oil Injections
Number of Participants With Achievement of 34 Weeks Gestation00
SecondaryNumber of Participants With Neonatal Respiratory Distress Syndrome
Time frame:
From delivery until neonatal hospital discharge, assessed up to 2 months
Reported as:
Count of participants · Participants
Number of Participants With Neonatal Respiratory Distress Syndrome
Participants17-hydroxyprogesterone CaproateCastor Oil Injections
Number of Participants With Neonatal Respiratory Distress Syndrome710
Statistical analysis
  • 17-hydroxyprogesterone Caproate vs Castor Oil Injections · Chi-squared · p = 0.31
SecondaryNumber of Participants With Neonatal Grade III - IV Intraventricular Hemorrhage
Time frame:
From delivery until neonatal hospital discharge, assessed up to 2 months
Reported as:
Count of participants · Participants
Number of Participants With Neonatal Grade III - IV Intraventricular Hemorrhage
Participants17-hydroxyprogesterone CaproateCastor Oil Injections
Number of Participants With Neonatal Grade III - IV Intraventricular Hemorrhage12
Statistical analysis
  • 17-hydroxyprogesterone Caproate vs Castor Oil Injections · Chi-squared · p = >0.99
SecondaryNumber of Participants With Neonatal Necrotizing Enterocolitis
Time frame:
From delivery to neonatal discharge, assessed up to 2 months
Reported as:
Count of participants · Participants
Number of Participants With Neonatal Necrotizing Enterocolitis
Participants17-hydroxyprogesterone CaproateCastor Oil Injections
Number of Participants With Neonatal Necrotizing Enterocolitis21
Statistical analysis
  • 17-hydroxyprogesterone Caproate vs Castor Oil Injections · Chi-squared · p = 0.59
SecondaryNeonatal Length of NICU and Total Hospital Stay Assessed as Number of Days
Time frame:
From birth to discharge form delivery hospital, assessed up to 2 months
Reported as:
Mean · days
Neonatal Length of NICU and Total Hospital Stay Assessed as Number of Days
days17-hydroxyprogesterone CaproateCastor Oil Injections
Neonatal Length of NICU and Total Hospital Stay Assessed as Number of Days39 (13 to 59)50 (34 to 69)
Statistical analysis
  • 17-hydroxyprogesterone Caproate vs Castor Oil Injections · Wilcoxon (Mann-Whitney) · p = 0.16
SecondaryLength of Latency Assessed as Number of Days
Time frame:
From rupture of membranes until delivery, assessed up to 34 weeks of gestation
Reported as:
Median · days
Length of Latency Assessed as Number of Days
days17-hydroxyprogesterone CaproateCastor Oil Injections
Length of Latency Assessed as Number of Days14.5 (8.9 to 29.1)8 (5.3 to 13.4)
Statistical analysis
  • 17-hydroxyprogesterone Caproate vs Castor Oil Injections · Wilcoxon (Mann-Whitney) · p = 0.14

Adverse events

Collected over From enrollment up to discharge from the delivery hospital, assessed up to 2 months after delivery. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
17-hydroxyprogesterone Caproate0/10 (0%)0/10 (0%)0/10 (0%)
Castor Oil Injections0/11 (0%)0/11 (0%)0/11 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)17-hydroxyprogesterone CaproateCastor Oil InjectionsTotal
Mean31.7 ± 1.931.7 ± 2.031.7 ± 1.95
Sex: Female, Male
Sex: Female, Male(Participants)17-hydroxyprogesterone CaproateCastor Oil InjectionsTotal
Female101121
Male000
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)17-hydroxyprogesterone CaproateCastor Oil InjectionsTotal
Hispanic or Latino7815
Not Hispanic or Latino325
Unknown or Not Reported011
Race (NIH/OMB)
Race (NIH/OMB)(Participants)17-hydroxyprogesterone CaproateCastor Oil InjectionsTotal
American Indian or Alaska Native000
Asian101
Native Hawaiian or Other Pacific Islander000
Black or African American101
White5611
More than one race000
Unknown or Not Reported358
Region of Enrollment
Region of Enrollment(Participants)17-hydroxyprogesterone CaproateCastor Oil InjectionsTotal
United States101121
History of prior preterm birth
History of prior preterm birth(Participants)17-hydroxyprogesterone CaproateCastor Oil InjectionsTotal
Count of participants303
08

Study locations

2 sites
  • Santa Clara Valley Medical Center
    San Jose, California 95128, United States
  • Stanford University School of Medicine
    Stanford, California 94305, United States
09

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 9, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01050647
Lead sponsor
Stanford University
Responsible party
Yasser Yehia El-Sayed (Professor of Obstetrics and Gynecology, Stanford University) — Principal investigator
First posted
Jan 15, 2010
Start date
Feb 2010
Primary completion
Dec 2015
Completion
Dec 2015
Results posted
Apr 17, 2018
Last update
Apr 9, 2019

Study contacts

Yasser Y El-Sayed, MD
principal investigator · Stanford University

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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