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Second Trimester Labor Induction

This study has been terminated.
University of Maryland
Information provided by:
Johns Hopkins University Identifier:
First received: December 31, 2007
Last updated: June 9, 2009
Last verified: June 2009

A superior second trimester medical abortion regimen has not been identified. Studies suggest that a regimen of mifepristone and misoprostol given 36 to 48 hours apart has the shortest median induction-to-abortion interval, highest 24-hour abortion rate, and low rates of adverse events. Narrowing the interval between the two medications without clinically reducing effectiveness may increase access and acceptability for patients and reduce costs. Data from studies on first trimester abortions suggest that the 6 to 8 hour interval between mifepristone and misoprostol is as efficacious as the 36 to 48 hour interval. There are no studies on shorter intervals with same day administration between mifepristone and misoprostol in second trimester abortions.

The primary objective is to assess the efficacy of the combined mifepristone/misoprostol regimen for abortions between 17 0/7 and 23 6/7 weeks' gestation using an interval of 6 to 8 hours between the two medications.

Condition Intervention Phase
Second Trimester Labor Induction Drug: Experimental (mifepristone and misoprostol) Phase 1

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Pilot Study of Mifepristone Followed by Misoprostol in Women Undergoing Second Trimester Abortion

Resource links provided by NLM:

Further study details as provided by Johns Hopkins University:

Primary Outcome Measures:
  • Abortion rate [ Time Frame: 8 hours after misoprostol administration ]

Enrollment: 0
Study Start Date: March 2008
Estimated Study Completion Date: October 2010
Estimated Primary Completion Date: April 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: A
Mifepristone followed by labor induction with misoprostol after 6-8 hours
Drug: Experimental (mifepristone and misoprostol)
Mifepristone 200mg followed by labor induction with misoprostol after 6-8 hours


Ages Eligible for Study:   18 Years to 50 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • English-speaking women
  • 18 years of age and above
  • Voluntarily choose to undergo pregnancy termination via labor induction
  • An ultrasound-confirmed singleton intrauterine pregnancy between 17 0/7 and 23 6/7 weeks gestation
  • Able to provide written consent

Exclusion Criteria:

  • Premature rupture of membranes
  • Preterm labor
  • Intrauterine fetal demise
  • Chronic systemic corticosteroid use or adrenal disease
  • Hypersensitivity to prostaglandins
  • Cardiovascular disease such as angina, valvular disease, arrhythmia, cardiac failure
  • Known coagulopathy or treatment with anticoagulants
  • Prior caesarean delivery or myomectomy
  • Placenta previa
  Contacts and Locations
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Please refer to this study by its identifier: NCT00592215

United States, Maryland
University of Maryland Medical Center
Baltimore, Maryland, United States, 21201
Johns Hopkins Hospital
Baltimore, Maryland, United States, 21205
Sponsors and Collaborators
Johns Hopkins University
University of Maryland
  More Information

Responsible Party: Johns Hopkins University Identifier: NCT00592215     History of Changes
Other Study ID Numbers: NA_00010268
Study First Received: December 31, 2007
Last Updated: June 9, 2009

Keywords provided by Johns Hopkins University:
Second trimester labor induction

Additional relevant MeSH terms:
Abortifacient Agents, Nonsteroidal
Abortifacient Agents
Reproductive Control Agents
Physiological Effects of Drugs
Anti-Ulcer Agents
Gastrointestinal Agents
Abortifacient Agents, Steroidal
Contraceptives, Oral, Synthetic
Contraceptives, Oral
Contraceptive Agents, Female
Contraceptive Agents
Contraceptives, Postcoital, Synthetic
Contraceptives, Postcoital
Hormone Antagonists
Hormones, Hormone Substitutes, and Hormone Antagonists
Luteolytic Agents
Menstruation-Inducing Agents processed this record on August 22, 2017