Vaginal Progesterone Versus Placebo in Multiple Pregnancy

This study has been completed.
Calgary Health Region
Juniper Pharmaceuticals, Inc.
Information provided by (Responsible Party):
Dr. Sue Ross, University of Calgary Identifier:
First received: June 20, 2006
Last updated: August 14, 2013
Last verified: August 2013
The purpose of this study is to see if daily use of vaginal progesterone will prevent preterm birth in women carrying 2 or more babies.

Condition Intervention
Preterm Birth
Drug: Vaginal progesterone gel
Drug: Placebo gel

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator)
Primary Purpose: Treatment
Official Title: Pilot Randomized Trial of Vaginal Progesterone to Prevent Preterm Birth in Multiple Pregnancy

Resource links provided by NLM:

Further study details as provided by University of Calgary:

Primary Outcome Measures:
  • Gestational age [ Time Frame: Delivery ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Proportion of women delivering < 35 weeks [ Time Frame: Delivery ] [ Designated as safety issue: No ]
  • Proportion of women delivering < 37 weeks [ Time Frame: Delivery ] [ Designated as safety issue: No ]
  • Proportion of women having spontaneous preterm delivery [ Time Frame: Delivery ] [ Designated as safety issue: No ]
  • Proportion of women having tocolytic therapy [ Time Frame: During pregnancy ] [ Designated as safety issue: No ]
  • Treatment compliance [ Time Frame: Delivery ] [ Designated as safety issue: No ]
  • Length of stay for mother and infants [ Time Frame: Discharge ] [ Designated as safety issue: No ]
  • Infant morbidity and mortality [ Time Frame: Discharge ] [ Designated as safety issue: No ]
  • Birth weight [ Time Frame: Birth ] [ Designated as safety issue: No ]

Enrollment: 84
Study Start Date: June 2006
Study Completion Date: March 2011
Primary Completion Date: March 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: 1
Progesterone gel
Drug: Vaginal progesterone gel
Vaginal gel once daily
Placebo Comparator: 2
Vaginal gel with no medication
Drug: Placebo gel
once daily

Detailed Description:
Women who are pregnant with twins or any higher order multiple will be approached to take part. Women will be randomized to get either vaginal progesterone gel or a placebo gel daily from study entry until 35 6/7 weeks. Women can enter the study between 16 - 20 6/7 weeks. Two hundred women will be recruited to take part. Data will be collected on the women and their infants to see if the active medication prolongs pregnancy.

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Confirmed multiple pregnancy
  • Ultrasound confirmed minimum of 2 live fetuses
  • Gestational age 16-20 6/7 weeks

Exclusion Criteria:

  • Placenta previa
  • Pre-existing hypertension
  • Major fetal anomaly
  • Monoamniotic, monozygotic multiples
  • Maternal seizure disorder
  • History of, or active, thromboembolic disease
  • Maternal live disease
  • Breast malignancy or pathology
  • Progesterone dependent neoplasia
  • Plans to move to another city during pregnancy
  • Sensitivity to progesterone
  • Participation in other clinical trials during the pregnancy
  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: NCT00343265

Canada, Alberta
Calgary Health Region
Calgary, Alberta, Canada, T2N 2T9
Sponsors and Collaborators
University of Calgary
Calgary Health Region
Juniper Pharmaceuticals, Inc.
Principal Investigator: Stephen Wood, MD University of Calgary
Study Director: Sue Ross, PhD University of Calgary
  More Information

Responsible Party: Dr. Sue Ross, Adjunct Professor, University of Calgary Identifier: NCT00343265     History of Changes
Other Study ID Numbers: 18589  9427-U0206-47C  104425 
Study First Received: June 20, 2006
Last Updated: August 14, 2013
Health Authority: Canada: Health Canada

Keywords provided by University of Calgary:
Preterm birth
Multiple pregnancy
Vaginal progesterone
Preterm birth in multiple pregnancy

Additional relevant MeSH terms:
Premature Birth
Obstetric Labor Complications
Obstetric Labor, Premature
Pregnancy Complications
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs
Progestins processed this record on May 30, 2016