Clinical trial · Observational
Identifying Novel Variants in the DPYD Gene in Patients of Non-Western Descent
A Prospective, Multicenter, Observational Study to Identify Novel Deleterious Variants in the DPYD Gene in Patients of Non-Western Descent: The DPYD-NOW Study
NCT04300361CI-TRIAL-00043874DPYD-NOWunknownClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
This is a observational, multicenter study to identify novel variants of the DPYD gene which are possible deleterious in patients of non-Western descent.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Neoplasms | Neoplasm | ONTOLOGY_EXACT | 0.90 |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Sequencing of DPYD gene | Genetic | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- label
- Non-Western patients
- description
- Patients of non-Western descent with an indication for treatment with fluoropyrimidine-based chemotherapy. A patient is classified as non-Western if a one (1) of the parents or more than two (\>2) of the grand parents are of non-Western descent.
- interventionNames
- Genetic: Sequencing of DPYD gene
Primary outcomes (1)
- measure
- Presence of variants of the DPYD gene that are possibly associated with an increased risk of severe fluoropyrimidine-related toxicity in patients of non-Western descent
- timeFrame
- Patients will be followed for the first 2 cycles (each cycle is 28 days).
Secondary outcomes (4)
- measure
- DPD enzyme activity of patients carrying a novel DPYD variant compared to wildtype patients measured in peripheral blood mononuclear cells (PBMCs)
- timeFrame
- Through study completion, an average of 2 years
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Pathologically confirmed malignancy for which treatment with a fluoropyrimidine is considered to be in the patient's best interest * Patients need to be self-declared non-Western * Age 18 years and older * Able and willing to give written informed consent * WHO performance status of 0, 1 or 2 * Life expectancy of at least 12 weeks * Able and willing to undergo blood sampling for study related analysis * Adequate baseline patient characteristics (complete blood count, hepatic function which involves serum bilirubin, ASAT, ALAT, and renal function) Exclusion Criteria: * Prior treatment with fluoropyrimidines * Patients with known substance abuse, psychotic disorders, and/or other diseases expected to interfere with study or the patient's safety
References
Publications (0)
Data not yet available
No reference posted for this study.