Microchimerism in Patients With Recurrent Pregnancy Losses
Microchimerism From a Firstborn Boy or an Older Brother in Patients With Recurrent Pregnancy Losses: a Pilot Study
Microchimerism From a Firstborn Boy or an Older Brother in Patients With Recurrent Pregnancy Losses: a Pilot Study
Sponsor study identifier
interventional
32
1 country
1
Study Start
April 1, 2022
Actual (reported)Primary Completion
February 5, 2024
Actual (reported)Study Completion
February 5, 2024
Actual (reported)This pilot study aims to evaluate if microchimeric cells in a patient with recurrent pregnancy loss (RPL) can be detected by the blood analysis for the presence of the DYS14 gene and the use of indel-panel methods and also, to examine if this method can distinguish the cell's origin; comparing gene sequence from the patient's firstborn son or her older brother. In addition, the pilot study will provide the investigators with information and experience necessary for a subsequent main study to be conducted.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
February 5, 2024
Actual (reported)Click on a node to explore related trials.
Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
April 1, 2022
Actual (reported)April 8, 2022
Actual (reported)April 22, 2022
Actual (reported)February 5, 2024
Actual (reported)February 5, 2024
Actual (reported)Frequency of sRPL patients with microchimeric male cells
Prevalence of sRPL patients with microchimeric male cells in the peripheral blood
Non-pregnant state, performed during study completion, i.e. within 1 year
Frequency of sRPL patients with microchimeric cell originating from older brother
Determination of microchimeric cell origin: brother, son, daughter or not identified
Non-pregnant state, performed during study completion, i.e. within 1 year
Frequency of sRPL patients with microchimeric cell originating from the patient's son
Determination of microchimeric cell origin: brother, son, daughter or not identified
Non-pregnant state, performed during study completion, i.e. within 1 year
Frequency of sRPL patients with microchimeric cell originating from the patient's daughter
Determination of microchimeric cell origin: brother, son, daughter or not identified
Non-pregnant state, performed during study completion, i.e. within 1 year
Frequency of sRPL patients with microchimeric cell originating from unknown person
Determination of microchimeric cell origin: brother, son, daughter or not identified
Non-pregnant state, performed during study completion, i.e. within 1 year
sRPL with an older brother and at least one child prior to diagnosis
An older brother (with at least same biological mother) og child to the sRPL patient
Blood sample of 12 ml EDTA plasma.
receive swab tests for collecting cells from the oral mucosa
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Aalborg University Hospital
Aalborg, 9000, Denmark
Caroline Nørgaard-Pedersen, MD
Aalborg University Hospital
32 participants (actual enrollment reported by the registry).
First Submitted
April 8, 2022
First Posted
April 22, 2022
Study Start
April 1, 2022
Actual (reported)Screening for Oculocerebral Lymphoma With the Phenotype of NK Cells in Patients With Uveitis
Contact the study team to confirm eligibility.
Primary Completion
February 5, 2024
Actual (reported)Study Completion
February 5, 2024
Actual (reported)Last Updated
November 24, 2025
Record last verified: 2025-10
Download the complete ClinicalTrials.gov record imported by Syfrah, including fields not shown in this page. The registry may contain a newer revision.
Source: ClinicalTrials.gov.
JSON downloads include source attribution and retrieval details alongside the unchanged original record or the separately normalized values.
Source retrieved: