Sex or no Sex: That is the Question.
Key facts
- Who runs it
- Fundación Santiago Dexeus Font
- Where
- Spain1 site in 1 countryChoose a country to see its sites
- Trial code
- Status
- Terminated
- People taking part
- 412 people enrolled
- Started
- 4 May 2021
- Ended
- 15 Apr 2026
- Type of study
- Observational, 2 groups
- Treatments tested
- Sex intercourse
- Record updated
- 8 September 2026
- Why it stopped
- The study was discontinued due to difficulties in patient recruitment
Who can take part
- Sex
- Women only
- Healthy volunteers
- Cannot take part
The registry criteria, word for word
Show all 3 criteriaShow less
Who can take part
- Women with a heterosexual sexual relationship
- That they carry out an embryo transfer, in a FET cycle
Who cannot take part
- Exclusion criteria are not foreseen
This trial has no sites in United States.
It has sites in one country. Choose a country to see its sites.
About the trial
What the trial wants to find out
This study aims to evaluate the impact of sexual intercourse and orgasm in the 72 hrs following embryo transfer of blastocysts on the clinical pregnancy rate.
Read full original descriptionShow less
An impact on sexual activity and a decrease in the frequency of intercourse has been observed in infertile couples. In couples who undergo assisted reproductive technology (ART), sexual relations have an additional component that can condition them, such as the fear of influencing the outcome of the cycle.
The usual practice in ART cycles has evolved towards a preference for blastocyst-stage embryo transfer, both in fresh in vitro fertilization (IVF) cycles and in frozen embryo transfer (FET) cycles.
The investigators consider it important to elucidate whether coital intercourse after embryo transfer (ET) has an impact on the clinical pregnancy rate after the transfer of blastocyst-stage embryos.
The 2 groups in the trial
- Sex Intercourse
women with a heterosexual sexual relationship after embryo transfer
- Non sex intercourse
women without a heterosexual sexual relationship after embryo transfer
Data and sources
- Registry record
- Listed on ClinicalTrials.gov.
- Official title
- Sex or no Sex: That is the Question. Impact of Coital Sexual Intercourse on the Clinical Pregnancy Rate After Embryo Transfer.
- Record updated
- 8 September 2026