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A multicenter non-randomized confirmatory trial of stereotactic body radiation therapy for solitary lung tumor after complete resection of non-small cell lung cancer (JROSG17-4)

A multicenter non-randomized confirmatory trial of stereotactic body radiation therapy for solitary lung tumor after complete resection of non-small cell lung cancer (JROSG17-4) - A multicenter non-randomized confirmatory trial of stereotactic body radiation therapy for solitary lung tumor after complete resection of non-small cell lung cancer (JROSG17-4)

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000038935
Enrollment
35
Registered
2019-12-19
Start date
2020-10-03
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

Solitary lung tumor within 3 years after complete resection of non-small cell lung cancer: patients with medically inoperable or refusing surgery: small lung lesion with the diameter of 3 cm or less

Interventions

Stereotactic body radiation therapy 42 Gy/4 fractions

Sponsors

Japanese Radiation Oncology Study Group
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Lung lesion with the diameter of 3 cm or less 2. Within 3 years after complete resection of non-small cell lung cancer (NSCLC) 3. Fulfilling the following conditions i) or ii) plus iii) i) Histologically or cytologically confirmed NSCLC ii) Fulfilling both of the following conditions and clinically diagnosed as NSCLC a) Increase in tumor size of 1 mm or more, or consolidation/tumor ratio turning > 50% from <= 50% on CT scans performed 28 days or more apart b) Positive accumulation on FDG-PET/PET-CT iii) Small cell lung cancer is excluded 4. Without lymph node metastasis and extrapulmonary metastasis with chest CT, FDG-PET/PET-CT, and enhanced cranial MRI 5. No lesion suspected of malignant tumor excluding pure-GGO 6. Aged 20-90 years old 7. ECOG performance status of 0-2 8. Fulfilling the dose constraints on radiation treatment planning 9. No previous thoracic radiotherapy for ipsilateral lung 10. Diagnosed as inoperable by board certified respiratory surgeon or refusing surgery 11. Sufficient organ functions; fulfilling all of the following conditions; i) White blood cell >= 2000/mm3 ii) Hemoglobin >= 8.0 g/dL iii) Platelet >= 30000/mm3 iv) Total bilirubin <= 2.0 mg/dL v) Serum creatinine <= 2.0 mg/dL vi) FEV1.0 >= 700 mL vii) SpO2 (room air) >= 90% 12. Written informed consent

Exclusion criteria

Exclusion criteria: 1. Lung lesion diagnosed as small cell lung cancer or large cell neuroendocrine cancer 2. Synchronous or metachronous malignancy within 3 years 3. Active infection requiring systemic therapy 4. Body temperature of 38 or more degrees Celsius 5. Woman during pregnancy or possible pregnancy, within 28 days after delivery, or during breast-feeding 6. Severe mental disease 7. Receiving continuous systemic steroid (more than 10mg/day of prednisolone) or immune-suppressive medication 8. Idiopathic pulmonary fibrosis on CT 9. Severe cough requiring narcortic drugs 10. Inappropriate patients for this study judged by physicians

Design outcomes

Primary

MeasureTime frame
Overall survival

Secondary

MeasureTime frame
Progression-free survival, local progression-free survival, patterns of failure, local control period, early and late adverse events, severe adverse events

Countries

Japan

Contacts

Public ContactShigeo Takahashi

Kagawa University Hospital Department of Radiation Oncology

takahashi.shigeo@kagawa-u.ac.jp087-898-5111

Outcome results

None listed

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