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A multi-institutional clinical trial of carbon-ion radiotherapy for localized high-risk prostate cancer

A multi-institutional clinical trial of carbon-ion radiotherapy for localized high-risk prostate cancer - Carbon-ion radiotherapy for localized high-risk prostate cancer

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000025921
Enrollment
156
Registered
2017-02-25
Start date
2017-02-25
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

Prostate Cancer

Interventions

51.6Gy(RBE) of carbon-ion radiation in 12 fractions, 1 fraction per day, 4.3Gy(RBE) per fraction.

Sponsors

National Institutes for Quantum Science and Technology
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: 1) Histologicaly proven prostate cancer other than ductal carcinoma. 2) cT3a (UICC 7th Edition) or initial PSA>20ng/ml or Gleason score sum >=8 3) No apparent lymph node or distant metastasis confirmed by diagnostic imaging. 4) Performed neoadjuvant androgen deprivation therapy to be 3 to 12 months. 5) Performance status 0-2 (ECOG) 6) Written consent to be enrolled in this study.

Exclusion criteria

Exclusion criteria: 1) Existence of any treatment, excluding androgen deprivation therapy for prostate cancer. 2) Past history of radiotherapy which interferes with the study treatment. 3) Existence of other active malignancies (any co-existing malignancies and history of malignancy within 2 years). in-situ lesions which are concluded to be cured are not considered as such. 4) Uncontrolled infection and inflammatory disease within the irradiation field of the study treatment. 5) Psychologically and/or medically unfit for trial decided by an attending physician.

Design outcomes

Primary

MeasureTime frame
5-year biochemical recurrence free survival

Secondary

MeasureTime frame
late toxicity (gastrointestinal, genitourinary), 5-year overall survival, 5-year cause specific survival, cost effectiveness, quality of life

Countries

Japan

Contacts

Public ContactKana Kobayashi

National Institutes for Quantum Science and Technology QST Hospital

kobayashi.kanai@qst.go.jp043-206-3306

Outcome results

None listed

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