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Pilot clinical study of boron neutron capture therapy on post-radiotherapy, recurrent breast cancer

Pilot clinical study of boron neutron capture therapy on post-radiotherapy, recurrent breast cancer - BNCT on recurrent breast cancer

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000029403
Enrollment
3
Registered
2017-10-10
Start date
2017-10-10
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

Post-radiotherapy, recurrent breast cancer

Interventions

BNCT for patients with post-radiotherapy, recurrent breast cancer is applied by nuclear reactor. Lithium shield should be used during neutron irradiation to protect elements in orbit from neutron expo

Sponsors

Osaka Medical College
Lead Sponsor
Kyoto University Research Reactor Institute
Collaborator

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1. Patients who are diagnosed histologically as breast cancer 2. Patients who have the one measurable recurrent lesion at least in the previous radiation treatment field. 3. The lesions were well controlled at once by surgery or previous irradiation more than 6 monhs. 4. Chemotherapy or hormone therapy should have been started already. Anti-HER2 agent can be stopped with more than 4 weeks interval. 5. The deepest lesion should be within 8 cm in depth. 6. Patients should be older than 20 and younger than 75 years old at informed consent. 7. ECOG Performance Status should be 0 or 1. 8. Patients with bone marrow, liver, kidney function satisfying the following conditions within 28 days before enrollment - Leukocyte count 3,000 /microlitter or more, Hemoglobin 8.0 g/dL or more, Platelet count 100,000 /microlitter or more, AST 100 IU/L or less, ALT 100 IU/L or less

Exclusion criteria

Exclusion criteria: 1. Complication of congestive heart failure of III degree or more in NYHA 2. Patients who have 3 or more metastatic lesions. 3. Patients who have uncontrollable brain or lever metastasis. 4. Pregnant woman or lactating woman 5. Patients with phenylketonuria 6. Patients who have mental illness and judged as difficult for participation of this clinical trial. 7. Patients who have infectious disease which is necessary for the treatment. 8. Pulmonary fibrosis or interstitial pneumonia. 9. Patients who have the broader lesion on the skin more than 5 cm in diameter. 10. Patients who are judged to be inappropriate for participation in this study by an investigator or a test sharing physician for other reasons

Design outcomes

Primary

MeasureTime frame
Local control: The lesions should be measured on MR or CT or directly on the skin periodically. Major and minor axis should be recorded and judged as CR, PR, SD and PD for the assessment of local control, based on RECIST v.1.1..

Secondary

MeasureTime frame
Expression of adverse events Evaluate adverse events and serious adverse events. Observed adverse events are evaluated based on Common Toxicity Criteria for Adverse Events v4.0 (CTCAE v4.0).

Countries

Japan

Contacts

Public ContactShin-Ichi Miyatake

Osaka Medical College Cancer Center

neu070@osaka-med.ac.jp072-683-1221

Outcome results

None listed

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