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Recruiting Phase 4 NCT07158164

NCT07158164 DPYD Pharmacogenomics and Fluoropyrimidine (FP) Dose-Adjustment

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Clinical Trial Summary
NCT ID NCT07158164
Status Recruiting
Phase Phase 4
Sponsor Rutgers, The State University of New Jersey
Condition Colorectal Neoplasms
Study Type INTERVENTIONAL
Enrollment 100 participants
Start Date 2025-08-27
Primary Completion 2027-07-07

Eligibility & Interventions

Sex All sexes
Min Age 18 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
Fluorouracil injectionXeloda

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 4 studies follow an already-approved treatment in real-world conditions to monitor long-term safety and effectiveness.

This trial targets 100 participants in total. It began in 2025-08-27 with a primary completion date of 2027-07-07.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

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-related toxicities of heterozygous DPYD variant patients assigned to DPYD-guided reduced dosing versus patients with standard dosing in the control arm.

Eligibility Criteria

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

Contact & Investigator

Central Contact

Howard S Hochster, MD

✉ howard.hochster@rutgers.edu

📞 732-253-5618

Principal Investigator

Howard S. Hochster, MD

PRINCIPAL INVESTIGATOR

Study Principal Investigator

Frequently Asked Questions

Who can join the NCT07158164 clinical trial?

This trial is open to participants of all sexes, aged 18 Years or older, studying Colorectal Neoplasms. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT07158164 trial and what does that mean for participants?

Phase 4 studies are conducted after a treatment has been approved. They monitor long-term safety and real-world effectiveness in a broader patient population.

Is NCT07158164 currently recruiting?

Yes, NCT07158164 is actively recruiting participants. Contact the research team at howard.hochster@rutgers.edu for enrollment information.

Where is the NCT07158164 trial being conducted?

This trial is being conducted at Belleville, United States, Elizabeth, United States, Hamilton, United States, Jersey City, United States and 8 additional locations.

Who is sponsoring the NCT07158164 clinical trial?

NCT07158164 is sponsored by Rutgers, The State University of New Jersey. The principal investigator is Howard S. Hochster, MD at Study Principal Investigator. The trial plans to enroll 100 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: April 2026  ·  Data Methodology