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Hu3F8

Phase 1

Neuroblastoma (NB) | Monoclonal antibody | Oncology |Y-mAbs Therapeutics, Inc.|Last Updated: Jul 2, 2025

Target and mechanism

ModalityMonoclonal antibody

Also known as Hu3F8 With GM-CSF

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment48

FDA Designations

No designations recorded

Clinical trial landscape

Hu3F8 · 1 trial · 1 indication

Early Phase 1 1
NCT03189706Study of Chemoimmunotherapy for High-Risk NeuroblastomaNeuroblastoma (NB)
ACTIVE NOT_RECRUITING48 Analytics
EARLY_PHASE1ACTIVE NOT_RECRUITING
Study of Chemoimmunotherapy for High-Risk Neuroblastoma
Neuroblastoma (NB)Unlock trial analytics

Study Endpoints

Primary Endpoints

Number of participants with treatment-related adverse events as assessed by CTCAE v4.0
2 years

The regimen will be considered safe if there are no toxicities requiring discontinuation of therapy in at least 9/10 patients during the first two cycles.

response rate (CR+PR)
2 years

Response assessment will be based on the best response over the course of four cycles. Disease response for NB will use the International NB Response Criteria. Patients who withdraw from the study prior to cycle 4 with \< partial response will also not be considered evaluable for response and will be replaced.

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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Hu3F8, Irinotecan/Temozolomide and Sargramostim (HITS)EXPERIMENTALEach cycle consists of four doses of hu3F8, five doses each of irinotecan and temozolomide and five doses of GM-CSF.

Interventions

NameTypeDescription
IrinotecanDRUG50mg/m\^2/day IV will be administered from day 1-5
temozolomideDRUG(given concurrently with Irinotecan) 150mg/m\^2/day orally
Hu3F8BIOLOGICAL2.25mg/kg IV will be administered on days 2, 4, 8 and 10
GM-CSFDRUG250mcg/m2/day SC will be administered on days 6-10
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Eligibility Criteria

SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: * Diagnosis of NB as defined by international criteria,.e., histopathology (confirmed by the MSK Department of Pathology) or bone marrow metastases plus high urine catecholamine levels * High-risk NB as defined as any of the following: * Stage 4 with MYCN amplification (any a...

Countries:United States
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Frequently asked questions about Hu3F8

What is Hu3F8 used for?

Hu3F8 is an investigational monoclonal antibody being studied for the treatment of neuroblastoma, a type of cancer that forms in nerve tissue. It is being evaluated in patients with relapsed or refractory high-risk neuroblastoma and in those in first remission of high-risk neuroblastoma.

Who makes Hu3F8?

Hu3F8 is being developed by Y-mAbs Therapeutics, Inc., a biopharmaceutical company. The company is conducting clinical trials to evaluate the safety and efficacy of Hu3F8 in patients with neuroblastoma.

What phase is Hu3F8 in?

Hu3F8 is in clinical development, with trials listed as Phase 1, Phase 2, and Early Phase 1. It is an investigational drug and has not been approved by the FDA. The trials are studying its use in different stages of high-risk neuroblastoma.

What clinical trials is Hu3F8 in?

Hu3F8 is being studied in three clinical trials. NCT01757626 is a Phase 1 trial combining Hu3F8 with GM-CSF in relapsed or refractory high-risk neuroblastoma. NCT03033303 is a Phase 2 trial of Hu3F8/GM-CSF plus isotretinoin in first remission. NCT03189706 is an Early Phase 1 trial of chemoimmunotherapy for high-risk neuroblastoma.

Is Hu3F8 the same as Hu3F8 With GM-CSF?

Hu3F8 is sometimes referred to as Hu3F8 With GM-CSF, which describes the combination therapy being tested. The drug itself is the monoclonal antibody Hu3F8, and GM-CSF is a separate agent used alongside it in certain clinical trials.