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Hypofractionated radiotherapy for low and intermediate-risk prostate cancer using robot-tracking stereotactic radiotherapy -phase I/II clinical trial-

Hypofractionated radiotherapy for low and intermediate-risk prostate cancer using robot-tracking stereotactic radiotherapy -phase I/II clinical trial- - Robot-tracking stereotactic radiotherapy for prostate cancer

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000014328
Enrollment
75
Registered
2014-06-20
Start date
2014-06-23
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

1st dose level (7 Gy x 5 fractions = 35 Gy), 2nd dose level (7.5 Gy x 5 fractions = 37.5 Gy), 3rd dose level (8 Gy x 5 fractions = 40 Gy)

Sponsors

Osaka University Graduate School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: 1) Biopsy-proven adenocarcinoma 2) no lymph node metastasis or distant metastasis proven by all of MRI, CT and bone scan 3) T1c-T2cN0M0 4) GS <=7 5) PSA <=20 6) No hormone therapy or less than 1-year neoadjuvant hormone therapy 7) WBC>3,000, Hb >10, Plt >10000, Cr <2, GOT <100, GPT<100 8) Age >20, <80 9) Informed consent

Exclusion criteria

Exclusion criteria: 1) Active double cancer 2) Uncontrollable DM 3) Impossible to stop anticoagulate drugs 4) Severe brain disease 5) Collagen disease 6) Previous pelvic surgery or radiotherapy 7) Previous TUR-P 8) Severe BPH or dysuria 9) Disagree to implant of metallic marker 10) Hormone therapy > 1 year 11) Castration-resistant prostate cancer 12) PSA >20 13) Physician-rated contraindication

Design outcomes

Primary

MeasureTime frame
Ratio of 2-year late adverse events (genitourinary and gaastrointestinal Grade 2 or more)

Secondary

MeasureTime frame
2-year biochemical control rate, QOL questionnaire (EPIC + SF-8), dosimetry (dose distribution etc. in radiation physics)

Countries

Japan

Contacts

Public ContactTakero Hirata

Osaka University Graduate School of Medicine Radiation Oncology

hirata@radonc.med.osaka-u.ac.jp06-6879-3482

Outcome results

None listed

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