Try our beta test site
IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more...

The Use of Progesterone to Reduce Preterm Birth

This study has been completed.
Information provided by (Responsible Party):
John Morrison, University of Mississippi Medical Center Identifier:
First received: December 16, 2008
Last updated: January 17, 2013
Last verified: January 2013
Preterm birth is the most common and costly complication in obstetrics. It complicates up to 11 % of all pregnancies and it is responsible for 70% of sick babies. Recently two studies have shown that giving progesterone (a normal hormone made by the ovaries) prolongs gestation in women who have had a preterm birth in an earlier pregnancy (and therefore are at risk for another early delivery). There are other studies that show that this technique of giving a weekly shot of progesterone does not prevent preterm birth. In addition, There are other groups of patients who are at very high risk for preterm birth which have not been studied. They include: 1.) Cervical cerclage (a stitch in the mouth of the womb); 2.) Multifetal gestation (twins, triplets, etc.); 3.) Women with preterm (<34 weeks) rupture of the membranes; 4.) Women with preterm labor during the current pregnancy with intact membranes who have been tocolyzed (have their labor stopped and are getting ready to go home). We purpose to give weekly shots of progesterone or a placebo in a randomized fashion to women in the first group who are at risk for preterm delivery due to an early birth in a previous pregnancy as well as the other four groups listed. If progesterone given weekly is successful at preventing early delivery as compared to the placebo group then great benefit for these women as well as future pregnancies would be accrued.

Condition Intervention
Preterm Birth
Drug: Progesterone (OHP17)
Drug: Placebo

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: The Use of Progesterone to Reduce Preterm Birth

Resource links provided by NLM:

Further study details as provided by John Morrison, University of Mississippi Medical Center:

Primary Outcome Measures:
  • Weeks Gestation at Birth Among Patients Receiving the Active Drug. [ Time Frame: Through delivery, until discharge up to 40 weeks gestation ]
    Weeks gestation at birth, the interval to delivery, or neonatal morbitity.

Enrollment: 144
Study Start Date: June 2004
Study Completion Date: June 2010
Primary Completion Date: January 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: 1 Placebo
The participant will receive a weekly injection of placebo from the time of enrollment up until 34 weeks' gestation or delivery, whichever occurs first.
Drug: Placebo
2cc of placebo liquid formulated by pharmacy personnel at the University of Mississippi Medical Center injected IM weekly until 34 weeks' gestation has been reached or delivery, whichever occurs first.
Active Comparator: Progesterone
The participant will receive weekly injections of 100mg of OHP17 from the time of enrollment until 34 weeks' gestation or delivery, whichever occurs first.
Drug: Progesterone (OHP17)
100mg of OHP17 or comparable amount of placebo administered by IM injection weekly until either 34 weeks' gestation or delivery has been achieved, whichever occurs first.

  Show Detailed Description


Ages Eligible for Study:   16 Years to 45 Years   (Child, Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Pregnancy 20 - 34 weeks; cervical dilation <4 cm; risk for preterm birth; multifetal gestation; diagnosis of preterm labor during the current pregnancy effectively tocolyzed); preterm rupture of the fetal membranes (24 - 34 weeks); willing and able to sign Informed Consent Form

Exclusion Criteria:

  • Failure to meet inclusion criteria as noted above; contraindication to pregnancy continuation; severe medical diseases such as sickle cell disease with crises, diabetes mellitus (F/R/H), severe preeclampsia etc., (physician judgment; severe fetal/obstetric criteria such as intrauterine growth restriction (<5th percentile, placental abruption,placental previa, etc., (physician judgment); non reassuring fetal assessment; allergy to progesterone compounds; refusal to participate
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00830765

United States, Mississippi
Winfred L Wiser Hospital for Women and Infants at the University of Mississippi Medical Center
Jackson, Mississippi, United States, 39216
Sponsors and Collaborators
University of Mississippi Medical Center
Principal Investigator: John C Morrison, MD University of Mississippi Medical Center
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: John Morrison, Professor, Ob-Gyn, University of Mississippi Medical Center Identifier: NCT00830765     History of Changes
Other Study ID Numbers: 2003-0239
Study First Received: December 16, 2008
Results First Received: May 22, 2012
Last Updated: January 17, 2013

Additional relevant MeSH terms:
Premature Birth
Obstetric Labor, Premature
Obstetric Labor Complications
Pregnancy Complications
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs processed this record on May 25, 2017