About ConcePTION

ConcePTION is a project funded by the Innovative Medicines Initiative, a private public partnership. The project was launched in April 2019.

We believe that we have an important societal obligation to radically and rapidly reduce uncertainty about the effects of medication used during pregnancy and breastfeeding to benefit women in making informed decisions about medications used before, during and after pregnancy.

Reporting medicine use in pregnancy

Did you use any medicines when you were pregnant? Here is how you and your health care provider can report what we call an exposure.

Ten principles for stakeholder engagement in the ConcePTION project

The ConcePTION project is building much-needed knowledge for women and health care professionals. To achieve our goal of building an ecosystem for medicine safety in pregnancy and breastfeeding, we need to engage with women, their partners, their doctors, pharmacists, midwives and nurses, the companies that develop medicines and the authorities that approve them and decide what becomes available to patients. Our goal is to work in an open and inclusive way, with the spirit of mutual respect and trust. Here is how we engage with stakeholders in an ethical way.


A new paper from Swansea University in collaboration with ConcePTION has called for breastfeeding data to be routinely collected in healthcare databases so that the long-term impacts of medicines taken by women during pregnancy and when breastfeeding, can be better understood. In the paper, which has been published in the International Breastfeeding Journal researchers argue that the lack of data collection on breastfeeding represents a significant ‘blind spot’ leading to an ‘information desert’ in understanding the impact that taking medicines during and after pregnancy, has on breastfeeding rates and long-term infant development.  | READ MORE >>
Seasonal allergies, diabetes and post-partum depression affect breastfeeding women worldwide. But there is very little information available about the transfer of drugs to breast milk and infants. Women who are breastfeeding are rarely included in clinical trials, but they still deserve to know if their medicines are safe. ConcePTION researchers recently published a paper in the Journal of Chromatography B that describes two developed and validated methods to determine how much of a drug the mother takes also transfers to her breastmilk, and potentially to her infant.  | READ MORE >>
Pregnancy is usually not recommended for women suffering from pulmonary arterial hypertension (PAH), a condition characterised by high blood pressure in the lung arteries, because of the high maternal mortality rate. For this reason, there is little to no information about whether or not the medicines these women use are safe during pregnancy and breastfeeding. A recent ConcePTION case report follows and presents the clinical and pharmacokinetic (PK) data of one breastfeeding mother living with PAH and her infant, who were both exposed to medicines used to treat the condition, bosentan and sildenafil, when the infant was 21 months old.  | READ MORE >>


If you have ever taken any medication during breastfeeding you may have come across an information desert about what is safe and what not.
In our recent paper we highlight this, and we are asking for more data on the interaction of medication and BF. 1/9

New paper calling for better #breastfeeding data collection. Why? To understand the impact of taking medicines during pregnancy and breastfeeding 👇


@SAILDatabank #WBW2022

The ConcePTION consortium

The project unites an unprecedented 88 organizations from 22 countries, including the European Medicines Agency, drug manufacturers, academia, public health organizations, and teratology networks to innovate new solutions to a decades-long public health issue.


The ConcePTION project has received funding from the Innovative Medicines Initiative 2 Joint Undertaking under grant agreement No 821520. This Joint Undertaking receives support from the European Union’s Horizon 2020 research and innovation programme and EFPIA.