An observational study in Infertility, sponsored by IVI Madrid. Completed at 1 site in Spain. Open to female participants aged 18 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-08-11.
Sponsored by IVI Madrid · Observational
Has the maternal KIR haplotype an impact in pregnancy, miscarriage and live birth rates per embryo transfer in donor oocytes -ART by paternal and oocyte donor HLA-C?
The combination of maternal KIR haplotype and parental, donors HLA-C, could predict which couple can benefit for the selection of single embryo transfer (SET)/double embryo transfer (DET), or donor selection by HLA-C in ART, in order to increase the live birth rate (LBR)/cycle since HLA-C1/C1 donors are predicted to be safer and C2/C2 males or oocyte donors may be mor "dangerous" as identified by epidemiological studies
2,085 studies on the registry are indexed under Infertility; 357 are open to participants now.
This study's enrollment of 200 is close to the median of 200 across 592 observational studies indexed under Infertility.
Browse Infertility studies →IVI Madrid is the lead sponsor of 35 studies on the registry; 3 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Patients undergoing an assisted reproductive treatment
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Autoimmune disease
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Immunosuppression
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Maternal and fetal compatibility KIR HLA-C determinations in ART -oocyte donor
Genetic: KIR HLAC determinations
We will take blood samples for KIR HLA-C determinations.
Compatibility maternal fetal KIR HLA-C
KIR haplotype regions will be defined by the presence of the following KIR genes: Cen-A/2DL3: Tel-A/3DL1 and 2DS4; Cen-B/2DL2 and 2DS2; Tel-B/2DS1 and 3DS1. The HLA-C ligands for KIRs will be divided into 2 groups: HLA-C1 and HLA_C2
Time frame: 2 years
Plan to share: No
No publications or documents are linked to this record.
Ran from Jan 2022 to primary completion in Apr 2022, 3 months.
Of 209 non-industry observational studies under Infertility, half reached primary completion within 39 months of starting (the median), counting those still running; a quarter within 15 and three quarters within 100. This study's 3 months is below that.
Counting every sponsor, half of 242 studies reached it within 39 months; a quarter within 16 and three quarters within 100.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Aug 2022. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
IVI Madrid