Embryo Testing (PGT)
Secure Select (niPGT-A)
Chromosome screening from the embryo’s culture fluid — used alongside, not instead of, biopsy PGT-A.
Analyses embryonic cell-free DNA in spent culture medium as a biopsy-free adjunct to, not a replacement for, trophectoderm-biopsy PGT-A.
- Specimen
- Spent embryo culture medium
- Methodology
- NGS of embryonic cell-free DNA
- Category
- Embryo Testing (PGT)
Pricing is available through your BioBloom portal or on request.
This test requires genetic counselling and written consent — your clinic will confirm this at ordering.
How it works
- 1
Order
Place the order through the BioBloom portal.
- 2
Sample
Collect the sample — Spent embryo culture medium.
- 3
Analysis
Laboratory analysis — NGS of embryonic cell-free DNA.
- 4
Report
Secure report delivered to your clinic through the portal.
What’s in the report
Biopsy-free aneuploidy screen per embryo (investigational).
Research & evidence
PGT-M/SR established; PGT-A used selectivelyPGT & embryo testing
PGT-M and PGT-SR are well-established for monogenic disease and structural rearrangements. PGT-A and non-invasive PGT-A are best used selectively, with the clearest signal in older patients per transfer.
Limitations: Randomised trials have not shown PGT-A to improve cumulative live birth in unselected patients: it selects between existing embryos rather than improving them. niPGT-A from spent culture medium is investigational, and its concordance with trophectoderm biopsy varies between laboratories.
Read the research

