A retrospective multicenter study of carbon ion radiotherapy for the head and neck cancer except sarcoma: Japan Carbon Ion Radiotherapy Study Group Study (1402 HN)

A retrospective multicenter study of carbon ion radiotherapy for the head and neck cancer except sarcoma: Japan Carbon Ion Radiotherapy Study Group Study (1402 HN) - J-CROS 1402 HN

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000024473

Enrollment

1000

Registered

2016-10-19

Start date

2015-04-27

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 cancer except sarcoma

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) histologically confirmed malignancy (except choroidal melanoma), no bone or soft tissue tumors, 2) N0 or N1 M0 status, 3) medically inoperable tumors or surgery refusal, 4) definitive intent, 5) measurable tumors, and 6) an Eastern Cooperative Oncology Group performance status of 0-2.

Exclusion criteria

Exclusion criteria: Patients who previously underwent irradiation for the same lesion were excluded.

Design outcomes

Primary

Measure	Time frame
Overall survival rate Local control rate Adverse event	—

Countries

Japan

Contacts

Public ContactMasashi Koto

National Institutes for Quantum and Radiological Sciences and Technology National Institute of Radiological Science Hospital

koto.masashi@qst.go.jp043-206-3360

Outcome results