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MiMi: A Randomized Trial of Mifepristone and Misoprostol for Treatment of Early Pregnancy Failure

Treatment of Early Pregnancy Failure

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00468299
Acronym
MiMi
Enrollment
16
Registered
2007-05-02
Start date
2007-04-30
Completion date
2008-12-31
Last updated
2011-07-21

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

Conditions

Anembryonic Pregnancy, Early Pregnancy Failure, Fetal Demise, Miscarriage

Keywords

early, pregnancy, failure, mifepristone, misoprostol, buccal, miscarriage, fetal, demise, anembryonic, progesterone

Brief summary

The purpose of this study is to compare two combinations of drugs (mifepristone and misoprostol versus placebo and misoprostol) used for medical treatment for early pregnancy failure. We will compare the two combinations of medications to see which combination makes miscarriage happen faster. We hypothesize that there will be no difference in time to complete miscarriage between the two groups.

Detailed description

The optimal method of treating Early Pregnancy Failure (EPF) is not certain. For many years, surgical management of EPF was the only treatment option. Now there are multiple studies demonstrating the effectiveness of misoprostol for treating EPF. Most of the studies investigating medical treatment of EPF have evaluated efficacy at one week. We have found that many women do not want to wait for one week for an outcome of their medical treatment, and want resolution sooner. This has hampered the widespread utilization of medical therapy in our institution. We propose a regimen of medical treatment for EPF with expeditious follow-up. We want to demonstrate the relative efficacy of two medication regimens for treatment of EPF by performing a randomized trial. One regimen will be 800μg buccal misoprostol alone and the other regimen will be 200mg mifepristone, orally, in addition to 800μg buccal misoprostol, simultaneously. The primary outcome will be complete abortion rates 24hours after medication administration. We hypothesize that mifepristone will not improve complete abortion rates at 24hrs. Secondary outcomes include rates of abortion by medical treatment at one week, the indications for surgical intervention, relationship of progesterone levels and type of pregnancy failure to outcomes in the two groups. Another secondary objective is to assess satisfaction with the treatment process at the conclusion of pregnancy termination, and 3 weeks after the beginning of the process. The majority of studies investigating medical treatment of EPF use vaginal misoprostol, but buccal use is increasing. We will use buccal misoprostol, which is widely used at our institution. We will assess the efficacy of this route of administration as well as assess patient acceptability of this method.

Interventions

DRUGMisoprostol and placebo

Women in this group receive 800 mcg misoprostol plus a placebo

This group receives mifepristone 200 mg orally; followed by 800 mcg misoprostol bucally

Sponsors

Boston University
Lead SponsorOTHER

Study design

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

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 64 Years
Healthy volunteers
Yes

Inclusion criteria

* Age \>18yrs, able to read and write English * Intrauterine gestations with anembryonic sac between 10 and 45mm or * 10-15mm sac with no growth in three days or other radiologic signs of abnormal pregnancy such as irregular sac or debris within the gestational sac * An embryonic pole \<30mm with no cardiac activity

Exclusion criteria

* Intrauterine gestations with CRL \<5mm or \>30mm without cardiac activity * Incomplete abortion as defined as open cervix and large amount of cramping/bleeding * Hemodynamic instability and/or heavy vaginal bleeding * Hemoglobin less than or equal to 8 * Inability to follow-up (ie, lack of transportation or access to telephone) * Bleeding disorder or taking anticoagulants * Prior medical or surgical treatment of the current pregnancy * Obvious Infection * Active Lactation * Allergy to mifepristone or misoprostol * Chronic corticosteroid use * Severe gastrointestinal disease (e.g inflammatory bowel disease, severe gastritis)

Design outcomes

Primary

MeasureTime frame
Number of Women With Complete Abortion 24-48hrs After Receiving Medical Treatment for Early Pregnancy Failure.24-48 hrs

Secondary

MeasureTime frameDescription
Complete Abortion at One Week3 weeksComplete abortion at one week; uterus demonstrated to be empty on transvaginal ultrasound

Countries

United States

Participant flow

Participants by arm

ArmCount
Misoprostol and Placebo
Women in this groups received misoprostol (800 mcg buccally) plus a placebo for treatment of early pregnancy failure.
9
Mifepristone and Misoprostol
Women in this group received mifepristone 200 mg orally followed by misoprostol 800 mcg buccally
8
Total17

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyWithdrawal by Subject01

Baseline characteristics

CharacteristicMifepristone and MisoprostolMisoprostol and PlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
8 Participants9 Participants17 Participants
Age Continuous29 years
STANDARD_DEVIATION 4
28 years
STANDARD_DEVIATION 4
28 years
STANDARD_DEVIATION 3
Region of Enrollment
United States
8 participants9 participants17 participants
Sex: Female, Male
Female
8 Participants9 Participants17 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 90 / 8
serious
Total, serious adverse events
0 / 90 / 8

Outcome results

Primary

Number of Women With Complete Abortion 24-48hrs After Receiving Medical Treatment for Early Pregnancy Failure.

Time frame: 24-48 hrs

ArmMeasureValue (NUMBER)
Misoprostol and PlaceboNumber of Women With Complete Abortion 24-48hrs After Receiving Medical Treatment for Early Pregnancy Failure.5 participants
Mifepristone and MisoprostolNumber of Women With Complete Abortion 24-48hrs After Receiving Medical Treatment for Early Pregnancy Failure.5 participants
Secondary

Complete Abortion at One Week

Complete abortion at one week; uterus demonstrated to be empty on transvaginal ultrasound

Time frame: 3 weeks

Population: Per protocol

ArmMeasureValue (NUMBER)
Misoprostol and PlaceboComplete Abortion at One Week6 participants
Mifepristone and MisoprostolComplete Abortion at One Week7 participants

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