Skip to content

Humanized Anti-GD2 Antibody Hu3F8 and Allogeneic Natural Killer Cells for High-Risk Neuroblastoma

Phase I Study of the Humanized Anti-GD2 Antibody Hu3F8 and Allogeneic Natural Killer Cells for High-Risk Neuroblastoma

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02650648
Enrollment
85
Registered
2016-01-08
Start date
2016-01-05
Completion date
2025-07-28
Last updated
2025-07-30

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

Conditions

High-Risk, Neuroblastoma

Keywords

Humanized Anti-GD2 Antibody Hu3F8, Allogeneic Natural Killer Cells, rIL-2, 15-272

Brief summary

This is a phase I study. The purpose of this study is to see if it is safe and feasible to give the participant cyclophosphamide (a type of chemotherapy), natural killer (NK) cells, and an antibody called Hu3F8 as a treatment for neuroblastoma. NK cells are a type of white blood cell. Funding Source- FDA OOPD

Interventions

DRUGcyclophosphamide

chemotherapy with intravenous (IV) cyclophosphamide 50mg/kg/day (for patients with body weight\<70kg) or 1500mg/m\^2/day (for patients with body weight ≥70kg) for two days (days -6 and -5).

BIOLOGICALNK cells

Day 0: NK cell infusion. NK cells are resuspended in Normasol at a concentration no less than 5 x 10\^6cells/mL. The patient is pre-medicated as per standard cell product infusion. The cell product is infused through a central venous catheter. Patients will be evaluated clinically by vital signs pre- and approximately 30 minutes post infusion of NK cells and thereafter at approximately 1 hour intervals for 4 hours.

BIOLOGICALhu3F8

On Days -1, +1, +5, +7 and +9 hu3F8 is administered at 1.68 mg/kg/day and infused over \ 30-90 minutes

DRUGrIL-2

On day 0, daily from +2 through +4, day +6, and day +8, rIL-2 is administered subcutaneously at 6 x 10\^5 U/m\^2/day.

Sponsors

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

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Healthy volunteers
Yes

Inclusion criteria

* Diagnosis of NB as defined by international criteria,.e., histopathology (confirmed by the MSKCC Department of Pathology) or bone marrow metastases plus high urine catecholamine levels. * High-risk NB as defined by risk-related treatment guidelines1 and the International NB Staging System, i.e., stage 4 with (any age) or without (\>365 days of age) MYCN amplification, MYCN-amplified stage 3 (unresectable; any age), or MYCN-amplified stage 4S. * Patients must have a history of tumor progression or persistent disease or failure to achieve complete response following standard therapy. * Patients must have evaluable (microscopic marrow metastasis, elevated tumor markers, positive MIBG or PET scans) or measurable (CT, MRI) disease documented after completion of prior systemic therapy. * Disease staging approximately within one month of treatment * Prior treatment with murine and hu3F8 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. * Eligible NK donor * Children and adults are eligible * Signed informed consent indicating awareness of the investigational nature of this program. Donor Inclusion Criteria * Donor is blood-related and HLA-haploidentical to the recipient. * Donor has undergone serologic testing for transmissible diseases as per blood banking guidelines for organ and tissue donors. Tests include but are not limited to: Hepatitis B Surface Antigen, Hepatitis B Surface Antibody, Hepatitis B Core Antibody, Hepatitis C antibody, Epstein-Barr Virus Antibody, HIV, HTLV I and II, Varicella Zoster (Herpes Zoster), Herpes Simplex Antibody, Cytomegalovirus Antibodies, Syphilis (RPR profile) for adolescents and adults, measles for pediatric patients, West Nile Virus, Chagas screen, and Toxoplasma antibodies. Donor must have normal negative test results for HIV, HTLV I and II, and West Nile Virus. Donor exposure to other viral pathogens will be discussed on a case-by-case basis by investigators. * Donor must be able to undergo leukopheresis for total volume of 10-15 liters. * There is no age restriction for the donor.

Exclusion criteria

* Patients with CR/VGPR disease * Existing severe major organ dysfunction, i.e., renal, cardiac, hepatic, neurologic, pulmonary, or gastrointestinal toxicity \> grade 3 except for hearing loss, alopecia, anorexia, nausea, hyperbilirubinemia and hypomagnesemia from TPN, which may be grade 3 * ANC should be \>500/uL * Platelet count \>75K/uL. * History of allergy to mouse proteins * Active life-threatening infection * Inability to comply with protocol requirements * Women who are pregnant or breast-feeding Donor

Design outcomes

Primary

MeasureTime frameDescription
The number patient responses observed at each dose level2 yearsas defined by International NB Response Criteria. Disease status is defined by the International NB Response Criteria. Complete response/remission (CR): no evidence of disease. Very good partial response/remission (VGPR): \>90% decrease in all disease parameters, except bone scan unchanged or improved; bone marrow must be free of disease. Partial response/remission: \>50% decrease in all disease parameters, except bone scan unchanged or improved; no more than 1 positive bone marrow site. Mixed response: \>50% decrease in \>1 but not all disease markers. Stable disease: \<50% decrease in all tumor markers. Progressive disease: new lesion, or \>25 % increase in any disease marker.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026