LPMA

On September 1, 2017, modifications of the Swiss Law on Medically Assisted Procreation (LPMA) were implemented. This amendment of the law was accepted by the people on June 5, 2016 with 64% of the vote.

The LPMAThe Swiss Law on Medically Assisted Procreation (2001). now allows the genetic diagnosis of embryos before transfer into the uterusPear-shaped organ that contains and nourishes the fetus during pregnancy, which contracts in a powerful and rhythmic manner at birth to expel the fetus.. Preimplantation genetic diagnosis (PGT-M, or PGDPGD or preimplantation genetic diagnosis. A genetic test performed on cells taken from an embryo obtained through in vitro fertilization. It allows to verify if the embryo presents a genetic illness for which the future parents are genetic carriers (cystic fibrosis, myasthenia, etc.)) is reserved for couples who carry a severe genetic abnormality.

The preimplantation diagnosis of aneuploidy  (PGT-A), also called "preimplantation screening" (PGSPGS or preimplantation genetic screening is a procedure allowing to check if an embryo presents a chromosomal anomaly. A few cells are taken from the embryo and analyzed. Only the embryos without a chromosomal anomaly are transferred into the woman's uterus.), is reserved for infertile couples with a higher risk of developing embryos with a chromosome abnormality (eg history of miscarriages, woman's age over 38 years, etc.).

The alternatives to PGDPGD or preimplantation genetic diagnosis. A genetic test performed on cells taken from an embryo obtained through in vitro fertilization. It allows to verify if the embryo presents a genetic illness for which the future parents are genetic carriers (cystic fibrosis, myasthenia, etc.) (PGT) are prenatal diagnosis, treatment by donation or adoption.

However, other very important changes have also been accepted and are summarized in the table below  :

Modifications Previous Law Current Law
Preimplantation diagnosis not allowed authorized
Maximum number of embryos in culture 3 12
CryopreservationProcess for the preservation of eggs and sperm by freezing. Thanks to the cryopreservation of zygotes the risk of multi-fetal pregnancy after IVF and ICSI can be reduced and the patient doest not need to repeat the hormonal stimulation and the collection of oocytes. of embryos not allowed authorized

Duration of conservation (gametesMale and female reproductive cells *: spermatozoa and eggs.,

zygotes,embryos)

5 years 10 years


These changes allow us to identify the embryos most likely to implant in the uterusPear-shaped organ that contains and nourishes the fetus during pregnancy, which contracts in a powerful and rhythmic manner at birth to expel the fetus. and to start a pregnancy, by allowing them to evolve in the embryoscope until the 5th day of development (blastocystThe blastocyst is an early embryonic stage of development of 5 / 6 days, which presents a complex cellular structure composed of about 200 cells. The blastocyst stage is the pre-implantation stage of the embryo in the maternal uterus. stage). In most situations, only one embryoTerm designating the early stages of development from conception to the eighth week of pregnancy. From the first cell division on, the two-cell stage, one uses the term embryo. will be transferred into the uterusPear-shaped organ that contains and nourishes the fetus during pregnancy, which contracts in a powerful and rhythmic manner at birth to expel the fetus.. This is in order to limit twin pregnancies, which are always more at risk for the babies and the mother.
The supernumerary blastocysts will be frozen by vitrification.

With this new law, the Swiss clinics that obtain the prerequisite cantonal authorizations, have access to the majority of possibilities for medically assisted procreation offered in neighboring countries (exception: oocyteA female reproductive cell. At birth, the ovaries contain 1 to 2 million oocytes. At puberty, there are no more than 400'000 to 500'000 left. Only 400 to 500 will reach maturity and ovulation at a rate of  one per month until menopause. All the others will finally degenerate at various stages of development. donation is still prohibited in Switzerland).

The CPMA welcomes the fact that in the context of assisted reproductive technologies (ART), blastocystThe blastocyst is an early embryonic stage of development of 5 / 6 days, which presents a complex cellular structure composed of about 200 cells. The blastocyst stage is the pre-implantation stage of the embryo in the maternal uterus. transfers make it possible to shorten the duration of treatments and to reduce the costs per pregnancy obtained.

CPMA, Rue de la Vigie 5, 1003 Lausanne, tél: 021 321 15 80