Genetic testing of embryos

In Austria, preimplantation genetic testing (PGT) – also known internally as TOBI – has been permitted since 2015.

In PGT, embryos are tested for genetic abnormalities before they are transferred to the uterus (embryo transfer).

There are three different types of PGT:

  • PGT-A (Preimplantation Genetic Testing for Aneuploidy): Testing for chromosomal abnormalities in the embryo.
  • PGT-SR (Preimplantation Genetic Testing for Structural Rearrangements): Testing for chromosomal abnormalities and structural changes, especially in couples where one partner is a carrier of a chromosomal structural change.
  • PGT-M (Preimplantation Genetic Testing for Monogenic/Single Gene Disorders): Testing for known, specific monogenic disorders.

PGT is regulated in Austria by the Reproductive Medicine Act (FMedG) and may only be performed in medically justified cases.

Requirements for PGT-A/PGT-SR:

  • The couple has undergone at least three unsuccessful embryo transfers.
  • The couple has already experienced at least three miscarriages.
  • There are known chromosomal abnormalities in at least one parent.

Requirements for PGT-M:

  • PGT-M is only permitted in Austria in very severe cases and for certain hereditary diseases.
  • The list of approved diseases is expanded annually, but is still not complete.

We would be happy to provide you with more detailed information in a personal consultation.