Skip to content

Humanized Monoclonal Antibody 3F8 (Hu3F8) With Granulocyte-Macrophage Colony Stimulating Factor (GM-CSF) in the Treatment of Recurrent Osteosarcoma

A Phase II Study of Humanized Monoclonal Antibody 3F8 (Hu3F8) With Granulocyte-Macrophage Colony Stimulating Factor (GM-CSF) in the Treatment of Recurrent Osteosarcoma

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02502786
Enrollment
46
Registered
2015-07-20
Start date
2015-07-31
Completion date
2026-07-31
Last updated
2025-10-07

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

Conditions

Recurrent Osteosarcoma

Keywords

Humanized Monoclonal Antibody 3F8 (Hu3F8), Granulocyte-Macrophage Colony Stimulating Factor (GM-CSF), 15-096

Brief summary

The purpose of this study is to find out what effect an antibody called Humanized 3F8 (Hu3F8) and a drug called GM-CSF have on the patient and whether it can keep the patient in remission longer and/or prevent recurrence of the disease.

Interventions

DRUGGM-CSF

Sponsors

Children's Hospital Los Angeles
CollaboratorOTHER
M.D. Anderson Cancer Center
CollaboratorOTHER
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
Age
13 Months to 40 Years
Healthy volunteers
No

Inclusion criteria

* Patients must have recurrent OS. OS must be verified by histopathology review by the site's Department of Pathology. (Patients registered at MSK must have pathology confirmed by MSK Department of Pathology.) * Patients must be in a ≥2nd complete remission as indicated by appropriate radiologic evaluations at the time of study entry. * Patients must be ≥ 1 year of age and ≤ to 40 years of age at the time of enrollment. * Prior therapy: ≥3 weeks should have elapsed since last cytotoxic therapy, immunotherapy or radiation therapy. More than one week should have elapsed since major surgery. NOTE: Minor surgery (e.g. minor biopsy, central venous catheter placement, shunt revision) is permitted within 1 week prior to enrollment) * Adequate hematopoietic function defined as: * Absolute neutrophil count ≥ 500/ul * Absolute lymphocyte count ≥ 500/ul * Platelet count ≥ 50,000/ul (transfusion independent) * Adequate hepatic function as defined by: * Total bilirubin of ≤ 1.5 times upper limit of normal (exception is made for patients with Gilbert's syndrome who may be considered eligible if total bilirubin is ≤ 3 times upper limit of normal). * AST (SGOT) of ≤ 3 times upper limit of normal * ALT (SGPT) of ≤ 3 times upper limit of normal * Adequate renal function as defined by a serum creatinine of ≤ 1.5 times upper limit of normal * Adequate cardiac function as defined by a shortening fraction of ≥ 28% or an ejection fraction ≥ 50% * Adequate pulmonary function as defined by no evidence of dyspnea at rest at no history of exercise intolerance * Adequate performance status as defined by ECOG score of ≤ 2 or Karnofsky/Lansky score ≥ 50% * Prior treatment with other anti-GD2 antibodies is allowed (prior treatment with Hu3F8 is NOT allowed), but HAHA antibody titer must be negative * 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

* Patients with OS in first complete remission. * Presence of overt metastatic disease at any site. * Active life-threatening infection. * Pregnant women or women who are breast-feeding. * Inability to comply with protocol requirements.

Design outcomes

Primary

MeasureTime frameDescription
event free survival (EFS)12 monthsEFS is defined as the time from surgery to relapse or death from any cause, recurrence of tumor or second malignancy.

Secondary

MeasureTime frameDescription
time to recurrence12 monthsTime to recurrence will be estimated using Kaplan-Meier methods. Very few patients are expected to die without relapse (\<5%). Recurrence is defined as the radiographic presence of any new lesion that is not attributable to differences in scanning techniques, change in imaging modality or findings thought to represent something other than osteosarcoma, or if a biopsy is performed which shows osteosarcoma.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 21, 2026