Status:

RECRUITING

DPYD Pharmacogenomics and Fluoropyrimidine (FP) Dose-Adjustment

Lead Sponsor:

Rutgers, The State University of New Jersey

Conditions:

Colorectal Neoplasms

Breast Neoplasms

Eligibility:

All Genders

18+ years

Phase:

PHASE4

Brief Summary

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-...

Detailed Description

Fluropyrimidines (FPs), such as 5-Fluorouracil (5-FU) and Capecitabine, are cornerstone chemotherapy agents widely used in the treatment of various cancers, including gastrointestinal, head and neck, ...

Eligibility Criteria

Inclusion

  • 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

  • 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

Key Trial Info

Start Date :

August 27 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

July 7 2029

Estimated Enrollment :

100 Patients enrolled

Trial Details

Trial ID

NCT07158164

Start Date

August 27 2025

End Date

July 7 2029

Last Update

November 13 2025

Active Locations (12)

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Page 1 of 3 (12 locations)

1

RWJBarnabas Health Clara Maas Medical Center

Belleville, New Jersey, United States, 07109

2

Trinitas Hospital and Comprehensive Cancer Center

Elizabeth, New Jersey, United States, 07202

3

RWJBarnabas Health - Robert Wood Johnson University Hospital, Hamilton

Hamilton, New Jersey, United States, 08690

4

RWJBarnabas Health Jersey City Medical Center

Jersey City, New Jersey, United States, 07302