Print

Purpose

This randomized phase II trial will characterize the efficacy, adverse event (AE) profile, and safety of two regimens of 5-FU given as 2L+ treatment to patients with RM-HNSCC. Eligible patients for this trial will have previously received platinum and PD-1 inhibitor therapy. The experimental regimen (Arm 1) will comprise the two days every two weeks (2D-Q2W) regimen of 5-FU. The standard regimen (Arm 2) will consist of the four days every three weeks (4D-Q3W) regimen of 5-FU. The primary hypotheses is that each regimen of 5-FU will result in an ORR of 10% of greater assessed by RECIST v1.1 criteria. The study will also describe treatment-related AEs assessed by CTCAE v5.0, dose interruptions, discontinuations, and modifications in each regimen.

Conditions

Eligibility

Eligible Ages
Over 18 Years
Eligible Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Histologically or cytologically confirmed: - RM-HNSCC of the oral cavity, oropharynx, larynx, or hypopharynx, OR - p16+ (HPV-related) level 2-3 neck node and unknown primary site, OR - Second primary HNSCC in a previously radiated field not amenable to curative-intent surgery and/or re-radiation. - Measurable disease per RECIST 1.1. - Previously treated with platinum-based chemotherapy, RM disease within 6 months of definitive cisplatin + radiation therapy (DCisRT) or post-operative adjuvant cisplatin + radiation therapy (POACisRT) OR progressive disease on or after or intolerance to platinum agent given for RM disease. - Previously treated with PD-1 inhibitor, RM disease within 6 months of PD-1 inhibitor given as part of curative-intent therapy OR progressive disease on or after PD-1 inhibitor given for RM disease OR intolerance to prior PD-1 inhibitor in the curative or metastatic setting. - At least 18 years of age - ECOG performance status ≤ 2 - Adequate bone marrow and organ function as defined below: - Absolute neutrophil count ≥ 1.0 K/cumm - Platelets ≥ 100 K/cumm - Hemoglobin ≥ 8.0 g/dL - Total bilirubin ≤ 1.5 x IULN (for subjects with Gilbert's disease ≤ 3 x IULN) - AST(SGOT)/ALT(SGPT)/Alkaline Phosphatase (ALP) ≤ 3.0 x IULN. For subjects with documented bone metastasis, ALP ≤ 5.0 x IULN. - Serum creatinine <3 mg/dL or creatinine clearance > 30 mL/min by Cockcroft- Gault. - The effects of 5-FU on the developing human fetus are unknown. For this reason, women of childbearing potential and men must agree to use adequate contraception prior to study entry, for the duration of study participation, and for 30 days after last dose of 5-FU - Recovery to baseline or ≤ grade 1 from AEs due to prior therapy, unless AEs are clinically nonsignificant and/or stable on supportive therapy (e.g., physiological replacement of corticosteroid). Low-grade or controlled toxicities such as alopecia, ≤ grade 2 hypomagnesemia, or ≤ grade 2 neuropathy are permitted. - Ability to understand and willingness to sign an IRB approved written informed consent document. Legally authorized representatives may sign and give informed consent on behalf of study participants.

Exclusion Criteria

  • Prior 5-FU given to treat RM-HNSCC. - Prior or concurrent malignancy whose natural history has the potential to interfere with the safety or efficacy assessment of the investigational regimen. Patients with prior or concurrent malignancy that does NOT meet that definition are eligible for this trial. - Currently receiving any other investigational agents. - RM or incurable second primary SCC of cutaneous, nasopharynx, paranasal/nasal/sinus origin. - DPYD deficiency (poor or intermediate metabolizer) as determined by next generation sequencing through blood or saliva (results of historical testing are accepted). - Severe hepatic impairment (Child-Pugh C) or history of hepatitis B or C. - Patients with untreated brain metastases. Patients with treated brain metastases are allowed if post-treatment brain-imaging after CNS-directed therapy shows no evidence of progression. - A history of allergic reactions attributed to compounds of similar chemical or biologic composition to 5-FU or other agents used in the study. - Pregnant and/or breastfeeding. Women of childbearing potential must have a negative urine pregnancy test within 14 days of study registration. - HIV-infected if not on effective anti-retroviral therapy with undetectable viral load for 6 months. Patients with HIV who are receiving effective anti-retroviral therapy and have had an undetectable viral load for at least 6 months are eligible. HIV testing not required in the absence of known history of infection.

Study Design

Phase
Phase 2
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Arm 1: 5-Fluorouracil (5-FU) 2D-Q2W 		Patients randomized to Arm 1 will receive 5-FU as a 400mg/m2 bolus followed by 2,400 mg/m2 continuous intravenous infusion (CIVI) over a 46 hour time period every 2 weeks on Day 1-2 and Days 15-16. Each cycle is 28 days.
  • Drug: 5-Fluorouracil
    Dose modifications or reductions are determined by patient's tolerability to the drug.
    Other names:
    • Adrucil
    • 5-FU
Active Comparator
Arm 2: 5-Fluorouracil (5-FU) 4D-Q3W 		Patients randomized to Arm 2 will receive 5-FU as a 1000g/m2/day continuous intravenous infusion (CIVI) over 4 days every 3 weeks on Day 1-4. Each cycle is 21 days.
  • Drug: 5-Fluorouracil
    Dose modifications or reductions are determined by patient's tolerability to the drug.
    Other names:
    • Adrucil
    • 5-FU

Recruiting Locations

Washington University in St. Louis and nearby locations

Washington University School of Medicine
St Louis, Missouri 63110
Contact:
Christine Auberle, MD
314-747-1459
auberlec@wustl.edu

More Details

NCT ID
NCT07419464
Status
Recruiting
Sponsor
Washington University School of Medicine

Study Contact

Christine Auberle, MD
314-747-1459
auberlec@wustl.edu

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.