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Same-Day Mifepristone-Misoprostol Compared to Misoprostol Only for Surgical Abortion Cervical Preparation

A Randomized Comparison of Same-Day Oral Mifepristone-Misoprostol to Misoprostol Only for Cervical Preparation in Second Trimester Surgical Abortion

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02412618
Acronym
MMSAP
Enrollment
100
Registered
2015-04-09
Start date
2012-09-30
Completion date
2014-01-31
Last updated
2022-03-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Induced Abortion

Brief summary

A randomized double---blinded comparison of same---day mifepristone and misoprostol with misoprostol only for cervical preparation in second---trimester surgical abortion in 100 women at 14 0/7---19 6/7 weeks gestation.

Detailed description

Women desiring abortion at gestational ages between 14 weeks 0 days and 19 weeks 6 days were randomized to 200-mg mifepristone or identical placebo with 400-mcg misoprostol vaginally 4-6 hours prior to D&E. Primary outcome was cervical dilation assessed by the largest Hegar dilator accepted without resistance. Secondary outcomes included total procedure time, and patient and provider perceptions. The study was powered to detect a 2-mm difference in cervical dilatation with 48 participants in each arm.

Interventions

DRUGMifepristone

Progesterone antagonist

DRUGMisoprostol

Prostaglandin E1

DIETARY_SUPPLEMENTPlacebo

Tasteless, odorless, sugar based pill

Sponsors

Medstar Health Research Institute
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

* healthy women * eligible for non---urgent D&E * 14 0/7 weeks to 19 6/7 weeks gestation, confirmed by sonogram

Exclusion criteria

* emergent need for D&E * fetal demise * intolerance * allergy or contraindication to mifepristone or misoprostol

Design outcomes

Primary

MeasureTime frameDescription
Initial Cervical DilationAssessed 4-6 hour following medications at time of D&E procedureInitial cervical dilation as measured by Hegar Dilator accepted with least resistance

Secondary

MeasureTime frameDescription
Patient Acceptability and Assessment of Pain and Side Effects (5-point Likert Scale)intraoperative5-point Likert scale given to patients following procedure once recovered from anesthesia assessing pain, side effects including nausea, vomiting, diarrhea, cramping, and if they would choose the method again or recommend to friends. Likert scale: Strongly agree (5), Agree (4), Neutral (3), Disagree (2), Strongly Disagree (1)

Participant flow

Participants by arm

ArmCount
Mifepristone
Mifepristone 200mg oral tablet, once Misoprostol 400 mcg tablets, vaginally, once Mifepristone: Progesterone antagonist Misoprostol: Prostaglandin E1
50
Placebo
Placebo oral tablets, odorless, colorless and matched to Mifepristone appearance Misoprostol 400 mcg tablets, vaginally, once Misoprostol: Prostaglandin E1 Placebo: Tasteless, odorless, sugar based pill
50
Total100

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyExpulsion11
Overall StudyWithdrawal by Subject11

Baseline characteristics

CharacteristicMifepristonePlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
50 Participants50 Participants100 Participants
Sex/Gender, Customized
Female
50 Participants50 Participants100 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 480 / 48
other
Total, other adverse events
0 / 480 / 48
serious
Total, serious adverse events
0 / 480 / 48

Outcome results

Primary

Initial Cervical Dilation

Initial cervical dilation as measured by Hegar Dilator accepted with least resistance

Time frame: Assessed 4-6 hour following medications at time of D&E procedure

ArmMeasureValue (MEAN)
MifepristoneInitial Cervical Dilation11.7 mm
PlaceboInitial Cervical Dilation10.9 mm
Secondary

Patient Acceptability and Assessment of Pain and Side Effects (5-point Likert Scale)

5-point Likert scale given to patients following procedure once recovered from anesthesia assessing pain, side effects including nausea, vomiting, diarrhea, cramping, and if they would choose the method again or recommend to friends. Likert scale: Strongly agree (5), Agree (4), Neutral (3), Disagree (2), Strongly Disagree (1)

Time frame: intraoperative

ArmMeasureGroupValue (MEAN)
MifepristonePatient Acceptability and Assessment of Pain and Side Effects (5-point Likert Scale)Nausea4 units on a scale
MifepristonePatient Acceptability and Assessment of Pain and Side Effects (5-point Likert Scale)Severe Cramps4 units on a scale
PlaceboPatient Acceptability and Assessment of Pain and Side Effects (5-point Likert Scale)Nausea4 units on a scale
PlaceboPatient Acceptability and Assessment of Pain and Side Effects (5-point Likert Scale)Severe Cramps4 units on a scale

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026