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A Phase I study of Glypican-3(GPC3) Peptide Vaccine for Pediatric Patients with Refractory Tumors

A Phase I study of Glypican-3(GPC3) Peptide Vaccine for Pediatric Patients with Refractory Tumors - GPC3 Vaccine PI for Pediatric Tumors

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000006357
Enrollment
15
Registered
2011-09-15
Start date
2011-09-01
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

Refractory pediatric tumors

Interventions

Intradermal injection of HLA-A24 or A2 restricted GPC3 peptide emulsified with Montanide ISA51 adjuvant, 1.5 mg/dose, repeating every 2 weeks, until disease progression/recurrence.

Sponsors

Section for Cancer Immunotherapy, Investigative Treatment Division, Research Center for Innovative Oncology, National Cancer Center Hospital East
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Refractory pediatric tumors 1) Patients in refractory, recurrent, or progressive status (progressive group) 2) Patients in remission without chance of cure (remission group) 3) Patients in partial remission or stable disease (partial remission group) 2. Patients with histological confirmation of GPC3 expression in tumor cells 3. 1-19 year-old of age 4. ECOG performance status of 0-2 5. Confirming the following laboratory results within 14 days 1) Absolute neutrophil count >=1,000/mm3 2) Platelet count >= 75,000/mm3 3) Creatinine adjusted according to age as follows: <= 0.8 mg/dl (<5 years) <= 1.2 mg/dl (5 years-9 years) <= 1.5 mg/dl (10 years-19 years) 4) Serum total Bilirubin <= 1.5mg/dl and ALT <= 165 IU/l 6. More than 28 days since prior antitumor cytotoxic treatment 7. Sixteen to 19 year-old of age: written informed consent from both patient and legal guardian Fifteen years and under: written informed consent from legal guardian 8. HLA-A24 or -A2 positive

Exclusion criteria

Exclusion criteria: 1. Pleural effusion or ascites requiring removal by puncture 2. Active concurrent cancer or secondary cancer within 5 disease-free years of primary cancer 3. Active infection requiring systemic medication 4. Active gastrointestinal bleeding 5. Severe complications including cardiac failure, renal failure, liver failure, active gastro-duodenal ulcer, ileus, and uncontrolled diabetes mellitus 6. Severe psychiatric disorder 7. Past history of severe drug allergy 8. Systemic steroids or immunosuppressant medication 9. Judged inappropriate for the trial by a responsible researcher

Design outcomes

Primary

MeasureTime frame
Incidence of dose limiting toxicity

Secondary

MeasureTime frame
Progression free survival, overall survival etc. GPC3-specific immune-responses to GPC3 vaccination

Countries

Japan

Contacts

Public ContactAko Hosono

National Cancer Center Hospital East Department of Pediatric Oncology

ahosono@ncc.go.jp04-7133-1111

Outcome results

None listed

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