Clinical trial · Interventional
DAHANCA 35: Proton Versus Photon Therapy for Head-neck Cancer
DAHANCA 35: A Randomized Trial of Proton Versus Photon Radiotherapy for the Treatment of Head-neck Cancer
NCT04607694CI-TRIAL-00047994DAHANCA 35unknownN/AClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
Patients with squamous cell carcinoma of the pharynx or larynx and an anticipated benefit of proton radiotherapy in reducing the risk of late dysphagia or xerostomia are randomized to proton or photon radiotherapy (2:1)
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Head-and-neck Cancer | Malignant Head and Neck Neoplasm | ALIAS | 0.90 |
Interventions
Interventions (2)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Photon radiotherapy | Radiation | — | UNRESOLVED |
| Proton radiotherapy | Radiation | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- Proton radiotherapy
- description
- Proton radiotherapy according to the guidelines defined by the Danish Head-Neck Cancer Group (DAHANCA). Treatment: 66-68 Gy/ 33-34 fx/ 6/W, with cisplatin 40 mg/m2/W and nimorazole to suitable patients
- interventionNames
- Radiation: Proton radiotherapy
- type
- ACTIVE_COMPARATOR
- label
- Photon radiotherapy
- description
- Photon radiotherapy according to the guidelines defined by the Danish Head-Neck Cancer Group (DAHANCA). Treatment: 66-68 Gy/ 33-34 fx/ 6/W, with cisplatin 40 mg/m2/W and nimorazole to suitable patients
- interventionNames
- Radiation: Photon radiotherapy
Primary outcomes (2)
- measure
- Dysphagia >= grade 2
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Patients with histologically proven squamous cell carcinoma of the pharynx or larynx planned for primary radiotherapy with curative intent * A predicted clinical significant reduction in the risk of any of the two primary endpoints (\>= grade 2 observer-rated dysphagia or grade 4 patient-reported xerostomia) after proton therapy compared to photon therapy based on comparison of the individual patient dose plans * No current or earlier malignancies, which may influence treatment, evaluation or outcome of the head-neck cancer * Informed consent as required by law * Above 18 years of age Exclusion Criteria: * Patient with cancers of the glottic larynx (stage I/II), skull base, sino-nasal area, unknown primary tumor and prior malignancies. * Patients with contraindications for proton therapy. Per October 2020, this includes pacemakers, implanted defibrillators and tracheostomy * Inability to attend full course of radiotherapy or follow-up visits in the outpatient clinic * Distant metastasis * Previous radiotherapy of the head and neck * Previous surgery for the primary cancer with curative intent
References
Publications (0)
Data not yet available
No reference posted for this study.