Mifepristone at Same Time Multicenter Study
MAST
A Multicenter, Randomized Comparison of Mifepristone and Misoprostol Administered Simultaneously Versus 24 Hours Apart for Abortion Through 63 Days
1 other identifier
interventional
1,128
1 country
4
Brief Summary
This is a multicenter, randomized study. 564 healthy women, age 18 years or older, with an intrauterine pregnancy, and requesting a medical abortion, will be recruited to participate in this prospective clinical trial. This study will provide an evaluation of oral mifepristone 200 mg and vaginal misoprostol 800 mcg administered simultaneously in women up to 63 days gestation. The aims of the study are to compare the complete abortion rates, at 7 and 14 days after misoprostol administration, when using mifepristone 200 mg orally and misoprostol 800 mcg vaginally are administered simultaneously and 24 hours apart in women up to 63 days gestation. Assessment of side effects (nausea, vomiting, pain) as well as acceptability will be done using pre and post-study questionnaires, and visual analogue scales. Complete abortion rate within 24 hours is expected to be 90%
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4
Started Jun 2004
4 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
June 1, 2004
CompletedFirst Submitted
Initial submission to the registry
September 12, 2005
CompletedFirst Posted
Study publicly available on registry
December 23, 2005
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2006
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2006
CompletedJanuary 29, 2016
January 1, 2016
1.8 years
September 12, 2005
January 28, 2016
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
complete abortion rate
5 weeks after treatment
Secondary Outcomes (8)
to compare complete abortion rates by gestational age
5 weeks after treatment
compare bleeding and side effect profiles
up to 5 weeks after treatment
compare acceptability of the two regimens
2 weeks after treatment
compare the expression of EP3 receptor mRNA in cervical tissue 2 and 24 hours after mifepristone treatment to pretreatment control
up to 24 hours after treatment
measure time to first ovulation
up to 10 weeks after treatment
- +3 more secondary outcomes
Interventions
Eligibility Criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (4)
University of Southern California
Los Angeles, California, 90033, United States
Northwestern University
Chicago, Illinois, 60611, United States
Oregon Health Sciences University
Portland, Oregon, 97201, United States
Magee-Womens Hospital
Pittsburgh, Pennsylvania, 15213, United States
Related Publications (2)
Creinin MD, Schreiber CA, Bednarek P, Lintu H, Wagner MS, Meyn LA; Medical Abortion at the Same Time (MAST) Study Trial Group. Mifepristone and misoprostol administered simultaneously versus 24 hours apart for abortion: a randomized controlled trial. Obstet Gynecol. 2007 Apr;109(4):885-94. doi: 10.1097/01.AOG.0000258298.35143.d2.
PMID: 17400850RESULTBednarek PH, Nichols MD, Carlson N, Edelman AB, Creinin MD, Truitt S, Jensen JT. Effect of "observed start" vs. traditional "Sunday start" on hormonal contraceptive continuation rates after medical abortion. Contraception. 2008 Jul;78(1):26-30. doi: 10.1016/j.contraception.2008.02.012. Epub 2008 May 6.
PMID: 18555814RESULT
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Mitchell D Creinin, MD
Universtity of Pittsburgh
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 12, 2005
First Posted
December 23, 2005
Study Start
June 1, 2004
Primary Completion
April 1, 2006
Study Completion
April 1, 2006
Last Updated
January 29, 2016
Record last verified: 2016-01
Data Sharing
- IPD Sharing
- Will not share