Precision Medicine: MRI-Guided Stereotactic Ablative Radiotherapy (MRI-SABR) for Early-Stage Glottic Laryngeal Cancer
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Transoral CO₂ laser cordectomy (Type I-VI depending on tumor localization), VMAT radiotherapy, MRI-SABR.
- Who it may be relevant to
- Registry conditions: Laryngeal Neoplasm, Glottic Carcinoma. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Lithuania
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
A Prospective, Randomized, Three-Arm, Open-Label Clinical Trial Comparing Transoral CO₂ Laser Microsurgery, Volumetric Modulated Arc Therapy (VMAT), and MRI-Guided Stereotactic Ablative Radiotherapy (MRI-SABR) in the Treatment of Early-Stage Glottic Laryngeal Cancer
Overview
This randomized phase III trial will compare the outcomes of three treatment modalities for early-stage glottic laryngeal cancer (T1-T2N0): transoral CO₂ laser microsurgery (TLM), volumetric modulated arc therapy (VMAT), and MRI-guided stereotactic ablative radiotherapy (MRI-SABR). The primary endpoint is local control (LC). Secondary endpoints include laryngectomy-free survival (LFS), progression-free survival (PFS). overall survival (OS), functional voice, swallowing and breathing outcomes, treatment-related complications, and the evaluation of radiomic and dosiomic biomarkers. Patients will be randomized in a 1:1:1 ratio. Total planned enrollment is 105.
Interventions
- Procedure Transoral CO₂ laser cordectomy (Type I-VI depending on tumor localization)
Surgical removal of the tumor with at least 2 mm margins; intraoperative frozen section biopsies; short hospitalization (1-3 days). - Radiation VMAT radiotherapy
Accelerated fractionation schedule: T1N0 - 63 Gy/28 fractions; T2N0 - 65.25 Gy/29 fractions; delivered using Eclipse planning system. - Radiation MRI-SABR
42.5 Gy total dose in 5 fractions, 2 fractions per week, planned with CT and MRI simulation and delivered with MRI-LINAC system.
Primary outcome measures
- Local Tumor Control Rate Assessed by Endoscopy and Imaging [Time frame: At 2 years after completion of treatment; At 5 years after completion of treatment]
Secondary outcome measures (8)
- Laryngectomy-Free Survival (LFS) [Time frame: Up to 2 years after randomization; Up to 5 years after randomization]
- Progression-Free Survival (PFS) [Time frame: Up to 2 years after randomization; Up to 5 years after randomization]
- Overall Survival (OS) [Time frame: Up to 2 years after randomization; Up to 5 years after randomization]
- Objective Voice Parameters Assessed by Acoustic Analysis (lingWAVES) [Time frame: Baseline, and at 1, 3, 6, 12, 18, and 24 months after completion of treatment]
- Patient-Reported Voice Outcome Assessed by Voice Screen Application [Time frame: Baseline, and at 1, 3, 6, 12, 18, and 24 months after completion of treatment]
- Swallowing Function Score Assessed by Anderson Dysphagia Inventory [Time frame: Baseline, and at 1, 3, 6, 12, 18, and 24 months after completion of treatment]
- Health-Related Quality of Life Scores Assessed by EORTC QLQ-C30 and QLQ-H&N35 [Time frame: Baseline, and at 1, 3, 6, 12, 18, and 24 months after completion of treatment]
- Quantitative Radiomic and Dosiomic Feature Values and Their Statistical Associations With Clinical Outcomes [Time frame: From baseline imaging through 5 years after completion of treatment]
Eligibility criteria
Inclusion criteria
- Age ≥18 years.
- Histologically confirmed squamous cell carcinoma of the glottic larynx, including verrucous carcinoma.
- Stage T1-T2N0 (8th TNM edition).
- ECOG performance status 0-2.
- Able to understand Lithuanian and complete questionnaires.
- Signed informed consent.
Exclusion criteria
- AJCC stage III-IV laryngeal cancer.
- Prior radiotherapy for head and neck cancer.
- Pregnancy or breastfeeding.
- Contraindications for radiotherapy or inability to follow-up.
- Presence of another active malignancy.
- Uncontrolled intercurrent illness (e.g., active infection, symptomatic CHF, unstable angina, clinically significant arrhythmia) or any condition that would preclude radiotherapy or adequate follow-up per investigator judgment.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Open label
- Primary purpose
- Treatment
Study locations
Lithuania · 1 center
- Lithuanian University of Health Sciences Kaunas Clinics — Kaunas
Identifiers
NCT: NCT07391345 · BE-2-45