Effect of Vaginal Intercourse on Spontaneous Labour at Term
1 other identifier
observational
123
1 country
1
Brief Summary
Vaginal intercourse to promote labour onset is biologically plausible. Oxytocin release during female orgasm, cervix mechanical stimulation and the effect of semen's prostaglandins are possible involved mechanisms. The investigators propose to evaluate the effect of vaginal intercourse on spontaneous labour at term.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
1 active site
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
April 1, 2009
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2011
CompletedFirst Submitted
Initial submission to the registry
July 5, 2013
CompletedFirst Posted
Study publicly available on registry
July 25, 2013
CompletedJuly 25, 2013
July 1, 2013
2.2 years
July 5, 2013
July 22, 2013
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Spontaneous labour onset at term
Spontaneous labour was considered to be established when there were regular contractions and at least 3cm of cervical dilation.
Spontaneous labour onset between 37 and 42 weeks of pregnancy
Secondary Outcomes (3)
Gestational age at delivery
Gestational age at delivery (between 37 and 42 weeks of pregnancy)
Mode of delivery
Mode of delivery (vaginal or cesarean delivery) up to 42 weeks of pregnancy
Interval between recruitment and delivery
number of days between patients study recruitment and delivery (maximum period of 28 days - between 38 and 41/0-6 weeks/days of pregnancy)
Study Arms (2)
Vaginal coitus group
Pregnant women assigned to have vaginal coitus at least twice a week
Control group
Pregnant women assigned to have no vaginal intercourse
Interventions
Eligibility Criteria
Pregnant women attending to antenatal appointment in our Obstetric Unit
You may qualify if:
- Term pregnancy
- Singleton pregnancy
- Cephalic presentation
- No previous cesarean section
- Irrelevant obstetric history
- Surveiled pregnancy without complications
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Hospital de Santa Maria
Lisbon, Portugal
Related Publications (1)
Castro C, Afonso M, Carvalho R, Clode N, Graca LM. Effect of vaginal intercourse on spontaneous labor at term: a randomized controlled trial. Arch Gynecol Obstet. 2014 Dec;290(6):1121-5. doi: 10.1007/s00404-014-3343-0. Epub 2014 Jul 18.
PMID: 25033717DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Catarina Castro, Dr
Hospital de Santa Maria
Study Design
- Study Type
- observational
- Observational Model
- CASE CONTROL
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Dr
Study Record Dates
First Submitted
July 5, 2013
First Posted
July 25, 2013
Study Start
April 1, 2009
Primary Completion
June 1, 2011
Last Updated
July 25, 2013
Record last verified: 2013-07