Clinical trial · Interventional
DPYD Pharmacogenomics and Fluoropyrimidine (FP) Dose-Adjustment
NCT07158164CI-TRIAL-00097190recruitingPhase 4ClinicalTrials.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)
To prospectively evaluate the efficacy and safety of DPYD-guided dosing strategies in a real-world clinical setting, specifically by comparing the incidence of severe (Grade 3 and 4) fluoropyrimidine-related toxicities of heterozygous DPYD variant patients assigned to DPYD-guided reduced dosing versus patients with standard dosing in the control arm.
Conditions
Conditions (4)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Breast Neoplasms | Breast Neoplasm | ONTOLOGY_EXACT | 0.98 |
| Colorectal Neoplasms | Colorectal Neoplasm | ONTOLOGY_EXACT | 0.98 |
| Gastro-Intestinal Intraepithelial Neoplasia | — | UNRESOLVED | — |
| Head and Neck Neoplasms | Head and Neck Neoplasm | ONTOLOGY_EXACT | 0.98 |
Interventions
Interventions (2)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Fluorouracil injection | Drug | Fluorouracil | ALIAS |
| Xeloda | Drug | Capecitabine | ALIAS |
Design
Arms and outcomes
Arms (2)
- type
- ACTIVE_COMPARATOR
- label
- Normal DPYD Patients (Control Arm)
- description
- Should receive 100% of the standard recommended doses as per the BEACON order plan. Dose Reduction for Toxicity: Reduce doses by 25% for unacceptable Grade 3 or any Grade 4 toxicity or clinically significant laboratory anbormaillity. If this occurs again, an additional 25% reduction (to 50% of the initial doses) should be used.
- interventionNames
- Drug: Fluorouracil injection
- Drug: Xeloda
- type
- EXPERIMENTAL
- label
- Patients with One DPYD Variant (Heterozygotes)
- description
- Will receive 50% of the regular starting doses for the first two cycles. For example, for FOLFOX or FOLFIRI, the 5FU bolus would be 200 mg/m², and the infusion would be 46 hours at 1200 mg/m².
- interventionNames
- Drug: Fluorouracil injection
- Drug: Xeloda
Primary outcomes (1)
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Diagnosis of cancer in either the adjuvant or metastatic setting requiring initial therapy with 5-FU or Capecitabine. * DPYD testing performed by a CLIA-certified laboratory (i.e., Guardant 360 or Caris blood testing for genomic profiling, DPYD testing by the Mayo Clinic or other certified laboratory) with results available before starting chemotherapy. * DPYD testing results falling into one of the following cohorts for first-line therapy with a fluoropyridine: * Study Cohort: Patients with one DPYD variant in one gene (heterozygotes). * Control Arm: Patients with normal or wild-type DPYD genes, for comparison, will be treated at the usual 100% dose. --FOLFOX regimen (N=50) * ECOG Performance Status 0-2. * Measurable disease or non-measurable disease allowed, including adjuvant 5-FU-based regimens. Exclusion Criteria: * Patients for whom 5-FU or Capecitabine therapy is contraindicated or not deemed appropriate in the judgment of the treating physician. * Patients with two DPYD variants (homozygous deletions or non-functional genetic variants, or double heterozygotes with two different abnormalities) should not receive 5-FU or Capecitabine and are therefore excluded from the study. * Pregnant Women and Children
References
Publications (0)
Data not yet available
No reference posted for this study.