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Combination Therapy of Antibody Hu3F8 With Granulocyte- Macrophage Colony Stimulating Factor (GM-CSF) in Patients With Relapsed/Refractory High-Risk Neuroblastoma

Phase I/II Study of Combination Therapy of Antibody Hu3F8 With Granulocyte- Macrophage Colony Stimulating Factor (GM-CSF) in Patients With Relapsed/Refractory High-Risk Neuroblastoma

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01757626
Enrollment
186
Registered
2012-12-31
Start date
2012-12-31
Completion date
2026-12-31
Last updated
2026-01-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Neuroblastoma

Keywords

Bone Marrow, Hu3F8, GM-CSF, 12-230

Brief summary

The purpose of this study is to find out if an antibody called Humanized 3F8 (Hu3F8) combined with granulocyte- macrophage colony stimulating factor (GM-CSF) is safe for treating neuroblastoma.

Interventions

BIOLOGICALHu3F8 With GM-CSF

Ph I: 1 cycle consists of treatment with hu3F8 for 3 days (day 1, 3 & 5). GM-CSF starts 5 days in advance of each hu3F8 cycle at 250 mcg/m\^2/day (day -4 to day 0), & at 500 mcg/m\^2/day x 5 days (day 1 to day 5). Hu3F8 cycles are 5 days. Ph II pts may receive treatment on a modified schedule of 3 doses of IV hu3F8 over a maximum of 10 days, as needed. With modified schedules of hu3F8, GM-CSF will be administered at 250 mcg/m2/day x5 days before the 1st dose of hu3F8, as with the standard schedule, but then GM-CSF at 500 mcg/m2/day will be administered on day of the 1st dose of hu3F8, on the day before and on the day of the 2nd dose of hu3F8, and on the day before and on the day of the 3rd dose of hu3F8. Cycles are repeated at 2-4 week intervals between 1st days of hu3F8, through 4 cycles. Pts who complete 4 cycles of treatment w/o complications or disease progression have the option of continuing treatment for up to 24 months from their 1st dose of hu3F8.

Sponsors

Y-mAbs Therapeutics
CollaboratorINDUSTRY
Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
1 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Diagnosis of NB as defined by a) histopathology (confirmed by the MSKCC Department of Pathology), or b) BM metastases or MIBG-avid lesion(s) plus high urine catecholamine levels. * Patients must have high-risk NB (including MYCNamplified stage 2/3/4/4S of any age and MYCN-nonamplified stage 4 in patients greater than 18 months of age) AND: * Phase I: Patients must have refractory or relapsed NB, resistant to standard therapy\*. \*For NB, standard therapy includes intensive induction chemotherapy, followed by a variety of consolidation or salvage therapies, depending on response. * Phase II: Patients must have primary or secondary refractory disease in BM, defined as morphologic evidence of NB in BM and/or abnormal 123I-MIBG uptake in osteomedullary sites, OR patients patients in ≥ 2nd CR patients are in ≥2nd CR * Patients must be older than 1 year of age. * Prior treatment with murine and humanized 3F8 is allowed. Patients with prior m3F8, hu3F8, ch14.18 or hu14.18 treatment must have a negative HAHA antibody titer. Human anti-mouse antibody (HAMA) positivity is allowed. * White blood cell count ≥1000/ul (phase I only) * Absolute neutrophil count ≥500/ul (phase I only) * Absolute lymphocyte count ≥500/ul (phase I only) * Platelet count ≥25,000/ul (phase I only) * No chemotherapy or immunotherapy for a minimum of three weeks prior to start of hu3F8 * Women of child-bearing potential must be willing to practice an effective method of birth control while on treatment * Signed informed consent indicating awareness of the investigational nature of this program.

Exclusion criteria

* Existing major organ dysfunction \> grade 2, with the exception of hearing loss and hematologic toxicity (defined as suppression of all subtypes of WBCs, RBCs, and platelets). * Active life-threatening infection. * Pregnant women or women who are breast-feeding. * Inability to comply with protocol requirements, including PK studies and genetic studies (phase I only) * History of allergy to mouse proteins. * Positive human anti-hu3F8 antibody (HAHA) titer

Design outcomes

Primary

MeasureTime frameDescription
maximum tolerated dosage1 yearhu3F8 when combined with GM-CSF. DLT is defined after 1 cycle. Seventeen dosage levels of hu3F8 will be tested with three to six patients at each dosage level.
assess the toxicity1 yearof the humanized anti GD2 antibody hu3F8 when combined with Granulocyte-Macrophage Colony Stimulating Factor (GM-CSF) in patients with high risk neuroblastoma. All observed adverse events, regardless of treatment group or suspected causal relationship to study drug will be recorded. Adverse events will be identified and graded using the Common Toxicity Criteria Version 4.0

Secondary

MeasureTime frameDescription
pharmacokinetics of hu3F81 year(Phase I) when combined with GM-CSF. Pharmacokinetics will be measured by serial blood sampling following the first two iv doses of hu3F8 as listed in Table 3. Serum hu3F8 will be measured pre-infusion and at time pre- (within an hour before hu3F8), 5 min, 3h, 6-8h, 24h, 48h, 72h, 96, 120h, 168h 216h and 264h after the first infusion of hu3F8 during cycle1 and, whenever possible, peak hu3F8 level at pre- and \ 5 minutes post-infusion will also be measured for each dose of hu3F8 in subsequent cycles .
assess activity of hu3F8 plus GM-CSF against HR-NB2 yearsAnother secondary objective is to assess the anti-tumor activity of hu3F8 against NB and other GD2-positive tumors. Anti-tumor activity will be measured by international neuroblastoma response criteria (INRC).
quantitate the response of marrow NB1 yearwill be measured using quantitative Reverse transcription-PCR (qRTPCR) and its relationship with dosage of hu3F8 explored.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 28, 2026