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Updated May 2026 · ClinicalTrials.gov

RECRUITINGPhase 3INTERVENTIONAL

a Multicentre Phase III Study of Risk-based Treatment Intensification With Hyperfractionated Radiotherapy in Head and Neck Cancer Patients

ARTSCAN VI Protocol Version 1, 2023-07-03 ARTSCAN VI - a Multicentre Phase III Study of Risk-based Treatment Intensification With Hyperfractionated Radiotherapy in Head and Neck Cancer Patients

a Multicentre Phase III Study of Risk-based Treatment Intensification With Hyperfractionated Radiotherapy in Head and Neck Cancer Patients (NCT06248996) is a Phase 3 interventional studying Head and Neck Squamous Cell Carcinoma, sponsored by Lund University Hospital. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

There is an unmet need to personalise treatment for patients with head and neck squamous cell carcinoma (HNSCC) and to improve treatment results for patients with advanced disease. In this phase III study, HNSCC patients with prognostic factors indicating increased risk of treatment failure that are aimed for curative treatment with radiotherapy (RT) will be randomised between standard treatment (conventionally fractionated RT with final RT dose 68.0 Gy) and hyperfractionated RT (HFX-RT) with final RT dose 83.0 Gy. In order to find better prognostic and predictive tools the study also includes exploratory and translational analyses including evaluation of grade of hypoxia with Magnetic Resonance Imaging (MRI) and gene profiling by RNA-sequencing, tumour immune profiling, comparisons of global gene expression, gene aberrations and protein expression, and texture analyses of CT, FDG-PET and MRI images used during RT preparation and during patient follow-up. Patients with tumours with lower risk of recurrence, not eligible for randomisation in the study, can still participate in the translational parts of the study not investigating response to altered fractionation.

What Stage of Research Is This?

Phase 3 trials confirm efficacy and safety in large patient groups (often 300–3,000+) and form the evidence base for an FDA approval submission. For Head and Neck Squamous Cell Carcinoma, Phase 3 studies typically randomize participants between the investigational treatment and either a placebo or current standard of care. A successful Phase 3 result is the threshold most treatments need to clear before regulatory approval.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

A target enrollment of 308 participants makes this a sizable late-stage trial. Studies in this range typically have enough power to detect clinically meaningful differences from a comparator and to characterize less-common side effects.

Who May Be Eligible (Plain English)

Who May Qualify: 1. The patient must be at least 18 years old. 2. diagnosed by tissue sample (biopsy-confirmed), previously untreated, HNSCC of the oropharynx, hypopharynx, larynx or oral cavity without distant metastases and aimed for treatment with radiotherapy (with or without concomitant chemotherapy) with curative intent. 3. The primary tumour must fulfil the following high-risk criteria: 1. For p16+ oropharyngeal cancer: Radiographic measurement of threeorthogonal diameters must render a tumour estimate of ≥30 cc. 2. For all other subsites and for p16- oropharyngeal cancer: Radiographic measurement of three orthogonal diameters must render a tumour estimate of ≥20 cc. 4. The treatment may be followed but not preceded by surgery, either as a salvage procedure or a neck dissection. An excision of a lymph node or tonsillectomy for diagnostic purposes, does not exclude the patient from participation. 5. WHO/You should be able to carry out daily activities with 0 level of ability (ECOG 0)-2 6. The patient must be able to understand the information about the treatment and give a written willing to sign a consent form to participate in the trial. Who Should NOT Join This Trial: 1. Previous radiotherapy in the head and neck region. 2. Concomitant or previous malignancies, except uncomplicated basal cell carcinoma, early (T1-2 N0) squamous cell carcinoma of the skin with follow-up time of at least one year for squamous cell carcinomas, and except other cancer with a disease-free follow-up of at least three years 3. Two or more synchronous primary HNSCC at time of diagnosis 4. Nasopharyngeal cancer 5. Sinonasal cancer 6. Co-existing disease prejudicing survival (expected survival \< three years). 7. Pregnancy or lactation 8. Psychiatric or addictive disorders or other medical conditions which in the view of the investigator might impair patient compliance Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language
Inclusion Criteria: 1. The patient must be at least 18 years old. 2. Histologically or cytologically confirmed, previously untreated, HNSCC of the oropharynx, hypopharynx, larynx or oral cavity without distant metastases and aimed for treatment with radiotherapy (with or without concomitant chemotherapy) with curative intent. 3. The primary tumour must fulfil the following high-risk criteria: 1. For p16+ oropharyngeal cancer: Radiographic measurement of threeorthogonal diameters must render a tumour estimate of ≥30 cc. 2. For all other subsites and for p16- oropharyngeal cancer: Radiographic measurement of three orthogonal diameters must render a tumour estimate of ≥20 cc. 4. The treatment may be followed but not preceded by surgery, either as a salvage procedure or a neck dissection. An excision of a lymph node or tonsillectomy for diagnostic purposes, does not exclude the patient from participation. 5. WHO/ECOG performance status 0-2 6. The patient must be able to understand the information about the treatment and give a written informed consent to participate in the trial. Exclusion Criteria: 1. Previous radiotherapy in the head and neck region. 2. Concomitant or previous malignancies, except uncomplicated basal cell carcinoma, early (T1-2 N0) squamous cell carcinoma of the skin with follow-up time of at least one year for squamous cell carcinomas, and except other cancer with a disease-free follow-up of at least three years 3. Two or more synchronous primary HNSCC at time of diagnosis 4. Nasopharyngeal cancer 5. Sinonasal cancer 6. Co-existing disease prejudicing survival (expected survival \< three years). 7. Pregnancy or lactation 8. Psychiatric or addictive disorders or other medical conditions which in the view of the investigator might impair patient compliance

Treatments Being Tested

RADIATION

Hyperfractionated radiotherpy

83.0 Gy in 68 fractions, 1.22 Gy per fraction, two daily fractions, five days per week to the primary tumour volume (GTVT\_83.0). To the primary tumour with an added margin (PTVT\_74.8) and to neck node metastases (PTVN\_74.8) the prescribed dose will be 74.8 Gy in 68 fractions, 1.10 Gy per fraction twice daily. To elective neck nodes (PTV 54.4) the prescribed dose will be 54.4 Gy in 68 fractions, 0.80 Gy per fraction twice daily.

RADIATION

Control group

68.0 Gy in 34 fractions, 2.00 Gy per fraction per day, five or six days per week to tumour volumes and 54.4 Gy in 34 fractions, 1.60 Gy per fraction to elective neck nodes.

Locations (11)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

Gävle Hospital
Gävle, Sweden
Sahlgrenska University Hospital
Gothenburg, Sweden
Jönköping Hospital
Jönköping, Sweden
Karlstad Hospital
Karlstad, Sweden
Linköping University hospital
Linköping, Sweden
Lund University Hospital
Lund, Sweden
Örebro University Hospital
Örebro, Sweden
Karolinska University Hospital
Stockholm, Sweden
University Hospital
Umeå, Sweden
Uppsala Accademical Hospital
Uppsala, Sweden
Västmanlands Hospital Västerås
Västerås, Sweden

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT06248996), the sponsor (Lund University Hospital), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT06248996 clinical trial studying?

There is an unmet need to personalise treatment for patients with head and neck squamous cell carcinoma (HNSCC) and to improve treatment results for patients with advanced disease. In this phase III study, HNSCC patients with prognostic factors indicating increased risk of treatment failure that are aimed for curative treatment with radiotherapy (RT) will be randomised between standard treatment (conventionally fractionated RT with final RT dose 68.0 Gy) and hyperfractionated RT (HFX-RT) with final RT dose 83.0 Gy. In order to find better prognostic and predictive tools the study also include… The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT06248996?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT06248996?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT06248996. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT06248996. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-05-08 · Data from ClinicalTrials.gov.