Skip to content

A PHARMACOGENETIC CLINICAL DECISION SUPPORT SYSTEM (CDSS)

Pdf

PDF Icon

European Statement

Patient Safety and Quality Assurance

Author(s)

Xando Díaz-Villamarín, Ana Pozo-Agundo, Paloma García-Navas, Alba Antúnez-Rodríguez, Celia Castaño-Amores, Cristina Lucía Dávila-Fajardo

Why was it done?

Nowadays, it is known that at least 33% of patients show variable response to drugs. Of those, genetic polymorphisms explain around 15-30% of these cases, single nucleotide polymorphisms (SNP) being the genetic markers most clinically relevant. In 2013, 40 million SNPs were identified in humans and some have been observed to determine drug response. These observations lead to the incorporation of genotyping some of these SNPs as a recommendation in many drug labels before treatment initiation.
Since patient´s drug response may be determined by certain SNPs in different genes it is necessary to develop CDSS based on pharmacogenetic (PGx) information that makes feasible its application in clinical routine, translating genotypes into phenotypes and dosing recommendations.

What was done?

We have developed a local Clinical Decision Support Systems (CDSS) that informs the physician on the availability of a PGx test in our hospital for certain prescribing drugs. This system will also be able to translate the genetic information into dosing recommendations.

How was it done?

We selected all the SNPs affecting drug response for which there is already a PGx test available in our hospital. All of them have been previously validated, and, only genes/SNPs related to drug response with the highest level of evidence, available in the Dutch Pharmacogenomics Working Group (DPWG) and Clinical Pharmacogenetics Implementation Consortium (CPIC) dosing guidelines with a minor allele frequency higher than 0,1% in our population have been included. We have considered all the different genotypes according to the SNPs included and linked them to a phenotype and dossing recommendation according to CPIC/DPWG guidelines.

What has been achieved?

Our CDSS connects different drugs with available PGx test in our unit, showing which gene should be genotyped before prescription. It translates genotypes into phenotypes and also provides dosing recommendations once PGx results are received, according to the CPIC and/or DPWG guidelines. Nowadays, this system facilitates the workflow for the implementation of pharmacogenetic tests in our hospital.

What next?

We have developed a CDSS that manages PGx information facilitating the implementation of pharmacogenetics in daily clinical routine. It will also allow us to expand our services to other medical departments within our hospital.

×

EAHP Forum

All the EAHP team is working on providing a Forum that can help connect all the members in Conversations and Groups to talk about important matters for the European Hospital Pharmacist.

The Forum will be accessible for all the EAHP members, you don’t have to create a new account to browse and participate.

Conversations and groups

The Conversations will be moderated by our team to provide documents and relevant topics for the community.

The Groups will connect all members that share a category. Members who work on the same assocation, on the same hospital, that have the same role, etc.

Stay tuned for the realase of the forum. Soon on EAHP.