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Phase Ib study of 131I-metaiodobenzylguanidine(MIBG) therapy with Valproic Acid(VPA) for high risk or recurrent neuroblastoma

Phase Ib study of 131I-metaiodobenzylguanidine(MIBG) therapy with Valproic Acid(VPA) for high risk or recurrent neuroblastoma - Phase Ib study of VPA and 131I-MIBG for recurrent / resistant neuroblastoma

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000012032
Enrollment
10
Registered
2013-10-14
Start date
2013-10-15
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

Intractable neuroblastoma

Interventions

(1) After enrollment, starting valproic acid (VPA) and adjusting VPA dosing to reach and keep the target concentration (100ug/ml). (2) Preparing for 131I-MIBG administration by assessing disease stat
s hematologic status.

Sponsors

National Cancer Research Center Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. histological proven neuroblastoma 2. ability to control urination and body weight = < 18kg 3. PS (Lansky) >= 50% 4. any radiologically confirmed residual disease which are not shrinking or any tumor associated symptoms, despite prior chemotherapies 5. any diseases evaluable by 123I-MIBG scan performed within 8 weeks 6. any non-irradiated disease with 123I-MIBG uptake which compress spinal cord 7. autologous hematopoietic stem cell product available for re-infusion after MIBG treatment whose quantity is more than 1.5*10^6 CD34+ cells/kg or 1.0*10^6 CD34+ cells/kg if the quality is confirmed within 8 weeks. 8. If the last chemotherapy contains one or more drugs with hematologic dose limiting toxicity (DLT), 7 days or more have passed since last use of anti-tumor agents which are administerd protractedly and 14 days or more have passed since last use of anti-tumor agents which are not administered in protracted way 9.7 days or more have passed since the anti-cancer drug (dosage restriction toxicity is non-hematologic toxicity) 10. No prior irradiation within 14 days if radiation fields is limited. No prior irradiation within 3 months if radiation fields contain either whole brain and spine, whole abdomen, whole lung, whole body, or more than 50% of pelvis. No prior irradiation within 6 weeks if radiation fields contain either less than 50% of pelvis, or 5 or less vertebras. 11. No oral 13-cis-RA within 14 days. 12 Any red blood cell (RCC) transfusion or platlet cell (PC) transfusion history within 7 days from registration or the last RCC or PC transfusion. 13. Normal organ function confirmed by laboratory tests within 14 days 14. No exertional dyspnea and no oxygen supply for everyday life. 15. No need for any anti-epileptics, phycotropics or anti-hypertentsivesexcept VPA during treatment. 16. Written informed consent from patient and/or legal guardian.

Exclusion criteria

Exclusion criteria: 1. active double cancer(synchronous double cancer and metachronous double cancer within 5 disease -free years),excluding carcinoma In situ(lesions equal to Intraepithelial or intramucosal Cancer)judged to have been cured with local treatment 2. active infection requiring systemic medication 3. abnormality in electrocardiogram tested within 28 days,requiring intervention 4. Psychosis which is not appropriate for participating in this study

Design outcomes

Primary

MeasureTime frame
Proportion of patients who can recover at normal hematologic status without hematopoetic stem cell rescue

Secondary

MeasureTime frame
DLT(profile and incidence) Adverse events profile Proportion of patients maintaining target serum concentration of VPA Clinical benefit rate Response rate identification of problem and solution for perform 131I-MIBG therapy

Countries

Japan

Contacts

Public ContactHiroshi Kawamoto

National Cancer Research Center Hospital Division of Pediatric Oncology

ped-dev@ml.res.ncc.go.jp03-3542-2511

Outcome results

None listed

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