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A Prospective Study on Selective Field Expansion During Carbon-ion Radiotherapy for Head and Neck Adenoid Cystic Carcinoma

A Prospective Study on Selective Field Expansion During Carbon-ion Radiotherapy for Head and Neck Adenoid Cystic Carcinoma - A Prospective Study on Selective Field Expansion During Carbon-ion Radiotherapy for Head and Neck Adenoid Cystic Carcinoma

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000059208
Enrollment
50
Registered
2025-11-01
Start date
2025-11-01
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Head and Neck Adenoid Cystic Carcinoma

Interventions

The radiation field is defined not only based on the gross tumor volume (GTV) confirmed radiologically on CT and MRI scans taken during treatment planning, but also considering high-risk anatomical st
Relative Biological Effectiveness), and a margin is added to establish the clinical target volume (CTV).CTV is defined in two stages (CTV1: first half, CTV2: second half). For the PNTS (-) group, the

Sponsors

Gunma University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Patients with histologically confirmed adenoid cystic carcinoma of the head and neck region. 2) Patients with measurable lesions. 3) Patients scheduled to undergo Carbon-ion Radiotherapy. 4) Patients aged 18 years or older. 5) Patients with a Performance Status (PS) of 0-2. 6) Patients who have been informed of their diagnosis and condition and possess the capacity to consent.

Exclusion criteria

Exclusion criteria: 1) Patients with a history of radiation therapy to the target treatment area. 2) Patients with active, refractory infection at the irradiation site. 3) Patients with severe complications (e.g., poorly controlled diabetes, myocardial infarction requiring urgent intervention, unstable angina, poorly controlled arrhythmia, bleeding tendency due to untreated hemorrhagic disease, collagen disease requiring steroid administration). 4) Patients with active multiple cancers (synchronous multiple cancers and metachronous multiple cancers with a disease-free interval of 5 years or less). However, lesions equivalent to carcinoma in situ or mucosal carcinoma, deemed curable by local therapy, are not included in active multiple cancers. 5) Other individuals deemed unsuitable by the attending physician due to medical, psychological, or other factors.

Design outcomes

Primary

MeasureTime frame
5-year Local Control Rate

Countries

Japan

Contacts

Public ContactAtsushi Musha

Gunma University Heavy Ion Medical Center

musha@gunma-u.ac.jp027-220-8378

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026