Spots Global Cancer Trial Database for Identifying Novel Variants in the DPYD Gene in Patients of Non-Western Descent

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Trial Identification

Brief Title: Identifying Novel Variants in the DPYD Gene in Patients of Non-Western Descent

Official Title: A Prospective, Multicenter, Observational Study to Identify Novel Deleterious Variants in the DPYD Gene in Patients of Non-Western Descent: The DPYD-NOW Study

Study ID: NCT04300361

Conditions

Neoplasms

Interventions

Sequencing of DPYD gene

Study Description

Brief Summary: This is a observational, multicenter study to identify novel variants of the DPYD gene which are possible deleterious in patients of non-Western descent.

Detailed Description: Research has shown that DPYD-guided dose-individualization based on 4 DPYD variants (DPYD\*2A, c.1236G\>A, c.2846A\>T and c.1679T\>G) can significantly reduce severe fluoropyrimidine-related toxicity. However, these 4 variants are most likely not predictive for toxicity in patients of non-Western descent. In this study the DPYD gene of patients of non-Western descent will be sequenced to identify novel variants that could be associated with a reduced DPD enzyme activity and an increased risk of developing severe fluoropyrimdine-related toxicity. Additionally, the ability to predict if a DPYD variant is possibly deleterious by a recombinant model systen (DPYD-varifier) will be studied.