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Trial registered on ANZCTR

Registration number
Ethics application status
Date submitted
Date registered
Date last updated
Date data sharing statement initially provided
Type of registration
Prospectively registered

Titles & IDs
Public title
Mifipristone and misoprostol compared to misoprostol alone in the treatment of first trimester miscarriage. A randomised control trial.
Scientific title
Among women with first trimester miscarriage, is the combination of mifepristone plus misoprostol superior to misoprostol alone for reducing the need for surgical uterine evacuation and repeat doses of misoprostol?
Secondary ID [1] 281589 0
Secondary ID [2] 281596 0
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
First trimester miscarriage 287870 0
Condition category
Condition code
Reproductive Health and Childbirth 288236 288236 0 0

Study type
Description of intervention(s) / exposure
Mifepristone plus misoprostol. 200mg oral mifepristone. Participants take the misoprostol tablets home with them to take 2 days after the mifepristone at an oral dose of 400mcg followed by a further 400mcg 3 hrs later
Intervention code [1] 286115 0
Treatment: Drugs
Comparator / control treatment
Arm 1: Misoprostol alone. 600mcg oral misoprostol followed by a further 600mcg oral misoprostol 3 hrs later
Control group

Primary outcome [1] 288425 0
Primary Outcome 1: Need for surgical uterine curettage as assessed by transvaginal ultrasound scan of retained products (mixed echogenicity within the uterine cavity of >15mm or intact gestational sac).
Timepoint [1] 288425 0
at 7-10 days post last dose of treatment
Primary outcome [2] 288426 0
Primary Outcome 2: Need for repeat dose of misoprostol (600mg PO followed by 600mcg PO 3hrs later) as assessed by transvaginal ultrasound scan of retained products of conception. Retained products defined as mixed echogenicity within the uterine cavity of >15mm or intact gestational sac.
Timepoint [2] 288426 0
at 7-10 days post last dose of treatment
Secondary outcome [1] 300128 0
Secondary Outcome 1: pelvic infection as determined by need for antibiotics as determined by follow up phone call at 2 weeks and review of clinical notes
Timepoint [1] 300128 0
within 31 days of trial entry for review of notes and phone call at 2 weeks post treatment
Secondary outcome [2] 300129 0
Secondary Outcome 2: duration of vaginal bleeding as determined by follow up phone call
Timepoint [2] 300129 0
2 weeks post treatment
Secondary outcome [3] 300130 0
Secondary Outcome 3: gastrointestinal symptoms such as nausea, vomiting and diarrhoea as determined by follow-up phone call
Timepoint [3] 300130 0
2 weeks post treatment

Key inclusion criteria
Patients will be included who have a positive serum beta hCG and are less than 13 weeks pregnant, as determined by the size of their gestational sac or crown rump length on ultrasound. Definitions for types of miscarriage are:
1) Early embryonic demise = Mean sac diameter (MSD) >20mm with nil internal structures
2) Anembryonic pregnancy = empty gestational sac of at least 12mm and no growth over 3 or more days
3) Early fetal demise = fetus crown rump length (CRL) at least 6mm with nil fetal heart beat on transvaginal USS
4) Incomplete miscarriage = mixed echogenicity within endometrial cavity +/- disordered gestational sac
Minimum age
18 Years
Maximum age
50 Years
Can healthy volunteers participate?
Key exclusion criteria
1) severe haemorrhage or pain
2) pyrexia
3) allergy or contraindication to misoprostol or mifepristone
4) current anticoagulation

Study design
Purpose of the study
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Patients are referred to our Early Pregnancy Assessment Service (EPAS) by Local Medical Officers and Emergency Departments. If miscarriage is diagnosed at the initial visit the patients are counselled regarding the treatment options (medical vs surgical). If the patient elects medical management they will be seen by the clinic nurse who will discuss the trial, give out the patient information statement and gain consent. Eligible participants will be randomised to receive either misoprostol alone or mifepristone + misoprostol. Concealment will be achieved using sequentially numbered, opaque, sealed envelopes. Envelopes will be kept in the office of clinic nurse not involved in the study. We hope that by having clinic nurses rather than registrars and consultants consenting the participants we will avoid dependent relationships forming between participants and those involved in the trial.
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Randomisation will be by permuted block randomisation.
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?

Intervention assignment
Other design features
Phase 3 / Phase 4
Type of endpoint(s)
Statistical methods / analysis

Recruitment status
Stopped early
Data analysis
No data analysis planned
Reason for early stopping/withdrawal
Lack of funding/staff/facilities
Date of first participant enrolment
Date of last participant enrolment
Date of last data collection
Sample size
Accrual to date
Recruitment in Australia
Recruitment state(s)
Recruitment hospital [1] 14615 0
John Hunter Hospital - New Lambton
Recruitment hospital [2] 14616 0
The Maitland Hospital - Maitland
Recruitment postcode(s) [1] 27639 0
2305 - New Lambton
Recruitment postcode(s) [2] 27640 0
2320 - Maitland

Funding & Sponsors
Funding source category [1] 286386 0
Self funded/Unfunded
Name [1] 286386 0
Angela Dunford
Address [1] 286386 0
Department of Obstetrics and Gynaecology
John Hunter Hospital
Lookout Road New Lambton
Country [1] 286386 0
Primary sponsor type
Nandini Somanathan
Department of Obstetrics and Gynaecology
John Hunter Hospital
Lookout Road
New Lambton
NSW 2305
Secondary sponsor category [1] 285177 0
Name [1] 285177 0
Monika Jha
Address [1] 285177 0
Department of Obstetrics and Gynaecology
John Hunter Hospital
Lookout Road
New Lambton
NSW 2305
Country [1] 285177 0

Ethics approval
Ethics application status
Ethics committee name [1] 288455 0
Hunter New England Human Research Ethics Committee
Ethics committee address [1] 288455 0
John Hunter Hospital
Lookout Road New Lambton Heights NSW 2305
Ethics committee country [1] 288455 0
Date submitted for ethics approval [1] 288455 0
Approval date [1] 288455 0
Ethics approval number [1] 288455 0
HNEHREC Reference No: 12/11/21/3.05
NSW HREC Reference No: HREC/12/HNE/407

Brief summary
We are doing this study to determine the most effective medication for treating women who have a miscarriage during the first three months of their pregnancy.

Our clinic offers different treatment options for managing miscarriage. The first involves a single medication (Misoprostol) and the second, two separate medications (Misoprostol and Mifepristone). At present there is no evidence to show that one works better than the other. Currently, the treatment you are given depends on the women’s choice and which one the treating doctor feels will be best for the patient.

Currently, it is not clear if one treatment is better than the other . We hope that this study will if adding mifepristone to the treatment improves its effectiveness so that we can better manage miscarriage.
Trial website
Trial related presentations / publications
Public notes

Principal investigator
Name 34984 0
Dr Angela Dunford
Address 34984 0
John Hunter Hospital Lookout Road
New Lambton NSW 2305
Country 34984 0
Phone 34984 0
+61 2 49214350
Fax 34984 0
Email 34984 0
Contact person for public queries
Name 18231 0
Dr Angela Dunford
Address 18231 0
Department of Obstetrics and Gynaecology
John Hunter Hospital
Lookout Road
New Lambton
NSW 2305
Country 18231 0
Phone 18231 0
+61 249214350
Fax 18231 0
+61 249213133
Email 18231 0
Contact person for scientific queries
Name 9159 0
Dr Angela Dunford
Address 9159 0
Department of Obstetrics and Gynaecology
John Hunter Hospital
Lookout Road
New Lambton
NSW 2305
Country 9159 0
Phone 9159 0
+61 249214350
Fax 9159 0
+61 249213133
Email 9159 0

Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No/undecided IPD sharing reason/comment
Study has ceased. Data will be stored as per ethics requirements then sensitively destroyed.
What supporting documents are/will be available?
No other documents available
Summary results
No Results