A clinical study of gestrienone (R2323) in emergency contraception

ISRCTN ISRCTN87842530
DOI https://doi.org/10.1186/ISRCTN87842530
Secondary identifying numbers WHO/HRP ID: A15022
Submission date
18/12/2009
Registration date
04/01/2010
Last edited
29/03/2010
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Pregnancy and Childbirth
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr Shungchun Wu
Scientific

National Research Institute for Family Planning
12 Da Hui Si, Hai Dian Qu
Beijing
100081
China

Study information

Study designMulticentre controlled randomised double-blind two-arm clinical trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleGestrienone (R2323) in emergency contraception: a multicentre double blind randomised controlled trial
Study objectivesCompare two different types of antiprogesterone for emergency contraception in four provinces in China.
Ethics approval(s)1. China: Institutional Review Board of National Research Institute for Family Planning approved on the 20th September 2005 (ref: A15022; Protocol: 95063)
2. WHO Secretariat Committee on Research Involving Human Subjects

All other centres will seek ethics approval before recruiting participants.
Health condition(s) or problem(s) studiedContraception
Intervention1. 10 mg of gestrienone (R2323)
2. 10 mg of mifepristone (RU486)

Women were to receive a single dose of gestrienone or mifepristone within 72 hours after unprotected intercourse (initial visit). They were followed to 7 days after the expected first day of the participants' next menstrual period.
Intervention typeDrug
Pharmaceutical study type(s)
PhasePhase III
Drug / device / biological / vaccine name(s)Gestrienone (R2323), mifepristone
Primary outcome measurePregnancy rates, measured at the follow up visit (7 days after expected next menstrual period) using urine pregnancy test and ultrasonography, if indicated.
Secondary outcome measures1. Side effects, measured using daily diary cards which were given at the initial visit, and reviewed and recorded at the follow up visit
2. Timing of next menstrual period, measured using daily diary cards which were given at the initial visit and reviewed and recorded at the follow up visit
Overall study start date01/11/2002
Completion date28/02/2003

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexFemale
Target number of participants800
Key inclusion criteria1. Requesting emergency contraception within 72 hour of unprotected intercourse
2. Only one act of unprotected intercourse during current cycle
3. Willing to abstain from further acts during current cycle
4. Regular menstrual cycles (24 to 42 days with no more than 5 days variation)
5. Having at least one spontaneous cycle before current cycle
6. Available for follow up in the next six weeks
7. Negative pregnancy test
8. Willing to participate
9. Aged 18 - 44 years
Key exclusion criteria1. Pregnancy
2. Contraindication to mifepristone
3. Presence of chronic medical condition
4. Subfertility
Date of first enrolment01/11/2002
Date of final enrolment28/02/2003

Locations

Countries of recruitment

  • China

Study participating centre

National Research Institute for Family Planning
Beijing
100081
China

Sponsor information

World Health Organization (WHO) (Switzerland)
Research organisation

20 Avenue Appia
Geneva
CH-1211
Switzerland

Website http://www.who.int/en/
ROR logo "ROR" https://ror.org/01f80g185

Funders

Funder type

Research organisation

World Health Organization (WHO) (Switzerland)
Private sector organisation / International organizations
Alternative name(s)
منظمة الصحة العالمية, 世界卫生组织, Всемирная организация здравоохранения, Organisation mondiale de la Santé, Organización Mundial de la Salud, WHO, 世卫组织, ВОЗ, OMS
Location
Switzerland

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/04/2010 Yes No