Aerobe Cycling Training in Women With Unexplained Recurrent Pregnancy Loss (NCT06007560) | Clinical Trial Compass
Active — Not RecruitingNot Applicable
Aerobe Cycling Training in Women With Unexplained Recurrent Pregnancy Loss
Netherlands30 participantsStarted 2022-03-21
Plain-language summary
In 50% of women with recurrent pregnancy loss (RPL) miscarriages are unexplained, therefore no therapeutic intervention is possible. In a pilot study, women with unexplained RPL showed less endometrial NK cells (eNK) compared to women with a previously uncomplicated pregnancy. It is known that eNK cells are important for embryo implantation during early pregnancy. Investigators presume that high sympathetic activity in these women is related to eNK cell number, function and phenotype and that exercise is an effective intervention to lower sympathetic activity and to influence the immune system, as especially peripheral NK cells have been assumed to be responsive to physical training. The investigators hypothesize that moderate exercise can lower the adrenergic tone of the sympathetic nervous system hereby influencing endometrial NK cells in women with RPL and eventually pregnancy outcome.
Who can participate
Age range
40 Years
Sex
FEMALE
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* RPL defined as 2 or more unexplained pregnancy losses from the time of conception until 24 weeks of gestation, known cause for the miscarriages are the presence of thyroid abnormalities, anti-phospholipid syndrome, uterine malformation, and abnormal parental karyotype according to international guideline.
* Couples should not be aiming to conceive during the time course of the exercise intervention.
Exclusion Criteria:
* Age above 40 years
* BMI above 40
* Current use of immunosuppressive or biological drugs
* Current use of hormone conceptive
* HIV positivity
* Current or recent (\<2 weeks) symptomatic genital infection such as chlamydia, gonorroa, or pelvic inflammatory disease
* Pre-existent diabetes mellitus, autoimmune disease or overt cardiovascular disease
* Vaccination (i.e Covid) within 1 month prior to or during sampling and intervention
* New pregnancy at time of measurements, breastfeeding
* Current or recent (\<2-3 months ago) pregnancy
* (Physical) inabilities to follow moderate aerobe cycling training
* Participants who are not capable of signing the informed consent
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.