5-Fluorouracil Response and Optimization STudy (The FROST Trial) (NCT07419464) | Clinical Trial Compass
RecruitingPhase 2
5-Fluorouracil Response and Optimization STudy (The FROST Trial)
United States46 participantsStarted 2026-04-21
Plain-language summary
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.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
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…
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Overall response rate (ORR)
Timeframe: Start of treatment through completion of treatment (estimated time up to 4 months)