A retrospective study for skull base and upper cervical spine chordomas treated with carbon-ion radiotherapy

A retrospective study for skull base and upper cervical spine chordomas treated with carbon-ion radiotherapy - Carbon-ion radiotherapy for skull base and upper cervical spine chordomas

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000029380

Enrollment

Registered

2017-10-02

Start date

2017-10-02

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

skull base and upper cervical spine chordoma

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) histologically confirmed chordoma of the skull base and upper cervical spine, 2) inoperable tumor, 3) age between 15 and 80 years, 4) Performance status score <2, 5) no distant metastasis, 6) grossly measurable tumor,

Exclusion criteria

Exclusion criteria: 1) prior radiotherapy to the C-ion RT-treated area, 2) chemotherapy within the past 4 weeks, and 3) serious medical or psychological conditions precluding the safe administration of treatment.

Design outcomes

Primary

Measure	Time frame
Local control rate	—

Secondary

Measure	Time frame
Overall survival rate	—

Countries

Japan

Contacts

Public ContactOffice of the hospital

National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Scienc Hospital

koto.masashi@qst.go.jp043-206-3306

Outcome results