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Testing the Combination of Two Immunotherapy Drugs (Magrolimab and Dinutuximab) in Patients With Relapsed or Refractory Neuroblastoma or Relapsed Osteosarcoma

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT04751383
Recruitment Status : Recruiting
First Posted : February 12, 2021
Last Update Posted : June 30, 2022
Information provided by (Responsible Party):
National Cancer Institute (NCI)

Brief Summary:
This phase I trial is to find out the best dose, possible benefits and/or side effects of magrolimab in combination with dinutuximab in treating patients with neuroblastoma that has come back (relapsed) or does not respond to treatment (refractory) or relapsed osteosarcoma. Magrolimab and dinutuximab are monoclonal antibodies that may interfere with the ability of tumor cells to grow and spread. The combination of magrolimab and dinutuximab may shrink or stabilize relapsed or refractory neuroblastoma or relapsed osteosarcoma. In addition, this trial may help researchers find out if it is safe to give magrolimab and dinutuximab after surgery to remove tumors from the lungs.

Condition or disease Intervention/treatment Phase
High Risk Neuroblastoma Recurrent Neuroblastoma Recurrent Osteosarcoma Refractory Neuroblastoma Resectable Osteosarcoma Biological: Dinutuximab Biological: Magrolimab Procedure: Resection Phase 1

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 82 participants
Allocation: Non-Randomized
Intervention Model: Sequential Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Phase 1 Trial of Hu5F9-G4 (Magrolimab) Combined With Dinutuximab in Children and Young Adults With Relapsed and Refractory Neuroblastoma or Relapsed Osteosarcoma
Actual Study Start Date : April 16, 2021
Estimated Primary Completion Date : January 31, 2024
Estimated Study Completion Date : January 31, 2024

Arm Intervention/treatment
Experimental: Arm A (magrolimab, dinutuximab)
Patients receive magrolimab IV over 2 hours on days 1, 8, and 15 of cycles 1-2 and days 1 and 15 of subsequent cycles, and dinutuximab IV over 10 hours on days 2-5. Treatment repeats every 21 days for up to 12 cycles in the absence of disease progression or unacceptable toxicity.
Biological: Dinutuximab
Given IV
Other Names:
  • Ch 14.18UTC
  • Ch14.18
  • MOAB Ch14.18
  • monoclonal antibody Ch14.18
  • Unituxin

Biological: Magrolimab
Given IV
Other Name: Hu5F9-G4

Experimental: Arm B (magrolimab, dinutuximab, surgery)
Patients receive magrolimab IV over 2 hours on days 1, 8, and 15 of cycles 1-2 and days 1 and 15 of subsequent cycles, and dinutuximab IV over 10 hours on days 2-5. Treatment repeats every 21 days for up to 12 cycles in the absence of disease progression or unacceptable toxicity. Patients with pulmonary osteosarcoma may undergo surgical resection of tumor after cycle 1. After surgery, these patients continue receiving magrolimab and dinutuximab every 21 days for up to 5 cycles in the absence of disease progression or unacceptable toxicity.
Biological: Dinutuximab
Given IV
Other Names:
  • Ch 14.18UTC
  • Ch14.18
  • MOAB Ch14.18
  • monoclonal antibody Ch14.18
  • Unituxin

Biological: Magrolimab
Given IV
Other Name: Hu5F9-G4

Procedure: Resection
Undergo surgical resection
Other Name: Surgical Resection

Primary Outcome Measures :
  1. Incidence of adverse events (dose finding cohort) [ Time Frame: Up to 30 days after last dose ]
    Safety data will be analyzed per standard methods and interpreted descriptively. Safety data will be summarized for each disease group separately and for both disease groups combined. Adverse events will be assessed using the Common Terminology Criteria for Adverse Events version 5.0 for type and severity of event. Serious Adverse Events will be summarized for each disease group and for both disease groups combined.

  2. Recommended phase 2 dose of magrolimab (dose finding cohort) [ Time Frame: During cycle 1 (21 days) ]
  3. Overall response rate (expansion cohort) [ Time Frame: Up to 5 years post treatment ]
    Measured by Response Evaluation Criteria in Solid Tumors (RECIST) version (v)1.1. Measurable soft tissue disease will be evaluated as per the International Neuroblastoma Response Criteria (INRC), and responses will be determined as either complete response (CR), partial response (PR), stable disease (SD) or progressive disease (PD). Response rates will be calculated for the measurable neuroblastoma cohort whose best response is a CR or PR.

  4. Incidence of adverse events (expansion cohort) [ Time Frame: Within 3 weeks of surgery ]

Secondary Outcome Measures :
  1. Pharmacokinetics (PK) of Hu5F9-G4 (magrolimab) [ Time Frame: Days 1, 8, and 15 of safety lead-in and cycle 1, day 1 of cycles 2, 3, 5, 7, 9, and 11, and end of therapy ]
    The PK Analysis Set will be used for summaries of PK concentration of magrolimab versus time. Serum concentrations will be listed and summarized for magrolimab using descriptive statistics by sampling timepoint and cohort. Graphical plots of individual serum concentration versus time and mean concentration versus time by cohort will be generated.

  2. Anti-tumor activity [ Time Frame: Up to 5 years post treatment ]
  3. Event free survival [ Time Frame: From the first dose of Hu5F9-G4 (magrolimab) until the earliest of: death, local recurrence, new metastatic disease, progression of metastatic disease or secondary malignancy, or date of last contact, assessed up to 5 years ]

Information from the National Library of Medicine

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Ages Eligible for Study:   1 Year to 35 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients must have a history of histologically or cytologically confirmed NBL or osteosarcoma
  • Patients must have:

    • Relapsed/refractory high-risk neuroblastoma (NBL) (defined as disease recurrence after completion of therapy, progressive disease on therapy, or refractory disease during induction therapy) or
    • Relapsed osteosarcoma (relapsed after frontline therapy and/or there must not be any potentially curative treatment options available at the time of enrollment)
  • Cohort B1: Confirmed neuroblastoma: measurable NBL/ganglioneuroblastoma (defined as those lesions that can be accurately measured in at least one dimension (longest diameter to be recorded) as >= 10 mm with cross sectional imaging (computed tomography [CT] scan or magnetic resonance imaging [MRI]), or >= 10 mm with calipers by clinical exam). Chest x-ray cannot be used to determine eligibility. Lesions must be iobenguane (MIBG) positive, positron emission tomography (PET) avid (if patient has a history MIBG negative disease) or biopsy proven NBL/ganglioneuroblastoma
  • Cohort B2: Evaluable NBL (iobenguane [MIBG] and/or bone marrow disease only)
  • Cohort B3: Measurable osteosarcoma (defined as those lesions that can be accurately measured in at least one dimension (longest diameter to be recorded) as >= 10 mm (>= 1 cm) with cross sectional imaging (CT scan, MRI,or calipers by clinical exam). Chest x-ray cannot be used to determine eligibility
  • Cohort B4: Patients with relapsed resectable pulmonary osteosarcoma who are scheduled for a surgical resection
  • Note: Subjects will not have measurable disease due to recently resected pulmonary metastases. Investigational therapy must begin within three weeks of resection. Staged resections are permissible; investigational therapy will be administered in between resections. Patients should receive one cycle of investigational therapy in between resections but can receive additional cycles to accommodate the most appropriate surgical schedule as determined by the treating physicians. Every effort will be made to have at least half of this cohort (five of ten patients) be those requiring a staged resection
  • There is no limit to the number of prior treatment regimens. Patients must have fully recovered from the acute toxic effects of all prior chemotherapy, immunotherapy, or radiotherapy prior to initiation of study treatment. Acute toxicity of any previous therapy must have resolved to grade 1 or less or stabilized, unless specified elsewhere

    • Myelosuppressive chemotherapy: Patients must not have received myelosuppressive chemotherapy within 3 weeks of initiation of study treatment (6 weeks if prior nitrosourea)
    • Hematopoietic growth factors: At least 7 days must have elapsed since the completion of therapy with a growth factor. At least 14 days must have elapsed after receiving pegfilgrastim
    • At least 7 days must have elapsed since the completion of therapy with a biologic agent, targeted agent, tyrosine kinase inhibitor or a metronomic non-myelosuppressive regimen
    • At least 4 weeks must have elapsed since prior therapy with 131I-MIBG
    • Monoclonal antibodies: At least 3 weeks must have elapsed since prior therapy that included a monoclonal antibody
    • Patients who have received prior therapy with GD2 antibodies, regardless of response to therapy, will be eligible
    • At least 7 days must have elapsed since the last pharmacologic dose of systemic steroids
  • Arm A: Age >= 1 or < 18 years of age
  • Arm B: Age >= 1 or =< 35 years of age
  • Eastern Cooperative Oncology Group (ECOG) performance status =< 2; Subjects > 16 years of age: Karnofsky >= 50%; Subjects =< 16 years of age: Lansky scale >= 50%
  • Absolute neutrophil count >= 1,000/mcL
  • Hemoglobin >= 9.5 g/dL, transfusion support acceptable
  • Platelets >= 100,000/mcL, independent of transfusions
  • Total bilirubin =< 1.5 X institutional upper limit of normal (ULN) for age (sum of conjugated and unconjugated)
  • Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 5 x institutional ULN
  • Creatinine =< institutional ULN OR glomerular filtration rate (GFR) >= 70 mL/min/1.73 m^2
  • Human immunodeficiency virus (HIV)-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months are eligible for this trial
  • For patients with evidence of chronic hepatitis B virus (HBV) infection, the HBV viral load must be undetectable on suppressive therapy, if indicated
  • Patients with a history of hepatitis C virus (HCV) infection must have been treated and cured. For patients with HCV infection who are currently on treatment, they are eligible if they have an undetectable HCV viral load
  • Patients with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen are eligible for this trial
  • Patients with known history or current symptoms of cardiac disease, or history of treatment with cardiotoxic agents, should have a clinical risk assessment of cardiac function using the New York Heart Association Functional Classification. To be eligible for this trial, patients should be class 2B or better
  • Female patients of childbearing potential must not be nursing or planning to be pregnant and must have a negative urine or serum pregnancy test within 30 days before enrollment and within 72 hours before the first administration of study treatment

    • Note: Females who have undergone surgical sterilization or who have been postmenopausal for at least 2 years are not considered to be of childbearing potential
  • The effects of Hu5F9-G4 (magrolimab) monoclonal antibody on the developing human fetus are unknown and dinutuximab is known to be teratogenic. For this reason, female patients of childbearing potential must be willing to use one highly effective method of contraception (hormonal or barrier method of birth control; abstinence) prior to study entry, during the study and continue for 4 months after the last dose of study treatment. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately

    • Male patients who are sexually active with a woman of childbearing potential (WOCBP) and who have not had vasectomies must be willing to use a barrier method of contraception (condom plus spermicidal gel) and refrain from sperm donation during the study and for 4 months after the last dose of study treatment. If the partner is pregnant, male patients must use barrier method contraception (condom) during the study and for 4 months after the last dose of study treatment to prevent fetal exposure to study treatment
  • All patients and/or their parents or legally authorized representatives must have the ability to understand and the willingness to sign a written informed consent. Assent, where appropriate, will be obtained according to local institutional policy
  • Cardiac ejection fraction >= 45% or shortening fraction >= 28%, no evidence of physiologically significant pericardial effusion as determined by an echocardiogram (ECHO), multigated acquisition scan (MUGA) or cardiac MRI. No clinically significant electrocardiogram (ECG) findings that in the judgment of the treating investigator would present a contraindication for treatment

Exclusion Criteria:

  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to anti-GD2 monoclonal antibody (dinutuximab) or Hu5F9-G4 (magrolimab) monoclonal antibody or other agents used in this study
  • Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements
  • Patients who are receiving any other investigational agents
  • Pregnant women are excluded from this study because Hu5F9-G4 (magrolimab) is a monoclonal antibody on the developing human fetus are unknown and dinutuximab may cause fetal harm. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with Hu5F9-G4 (magrolimab) or dinutuximab, breastfeeding should be discontinued if the mother is treated with Hu5F9-G4 (magrolimab) or dinutuximab
  • Patients who have received prior treatment with CD47 or SIRPalpha-targeting agents
  • Patients with red blood cell (RBC) transfusion dependence, defined as requiring more than 2 units of RBCs transfused during the 4-week period prior to screening. RBC transfusions are permitted during the screening period and prior to enrollment
  • Patients with known inherited or acquired bleeding disorders are not eligible
  • Patients with prior hemolytic anemia or Evans syndrome in the last 3 months
  • Patients with significant medical diseases that would worsen the risk-benefit ratio of participating in this study. This includes but is not limited to acute myocardial infarction within the last 6 months, unstable angina, significant acute or chronic infections, or severely immunocompromised state
  • Patients on the following medications at the time of study treatment initiation:

    • Immunotherapy or immunosuppressive drugs (e.g. chemotherapy or systemic corticosteroids) EXCEPT for the following:

      • The only exception is for patients known to require 2 mg/kg or less of hydrocortisone (or an equivalent dose of an alternative corticosteroid) as premedication for blood product administration in order to avoid allergic transfusion reactions. The use of conventional doses of inhaled steroids for the treatment of asthma is permitted, as is the use of physiologic doses of steroids for patients with known adrenal insufficiency
    • Growth factors (granulocyte colony stimulating factor or granulocyte macrophage colony stimulating factor) EXCEPT for erythropoietin and darbepoietin alpha
    • Herbal remedies with immunostimulating properties (e.g., mistletoe extract) or known to potentially interfere with major organ function (e.g. hypericin)
  • Patients administered a live vaccine within 28 days prior to initiation of study treatment
  • Patients with untreated central nervous system (CNS) metastasis.

    • Patients with previous CNS tumor involvement that has been treated and is stable for at least 4 weeks following completion of therapy are permitted
    • Patients who are clinically stable as evidenced by no requirements for corticosteroids, no evolving neurologic deficits, and no progression of residual brain abnormalities without specific therapy, are permitted
    • Patients with asymptomatic subcentemeric CNS lesions are permitted if no immediate radiation or surgery is indicated

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT04751383

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United States, California
Children's Hospital Los Angeles Recruiting
Los Angeles, California, United States, 90027
Contact: Site Public Contact    323-361-4110      
Principal Investigator: Araz Marachelian         
Lucile Packard Children's Hospital Stanford University Suspended
Palo Alto, California, United States, 94304
UCSF Medical Center-Mission Bay Recruiting
San Francisco, California, United States, 94158
Contact: Site Public Contact    877-827-3222   
Principal Investigator: Kieuhoa T. Vo         
United States, Colorado
Children's Hospital Colorado Recruiting
Aurora, Colorado, United States, 80045
Contact: Site Public Contact    303-764-5056   
Principal Investigator: Margaret E. Macy         
United States, Illinois
University of Chicago Comprehensive Cancer Center Recruiting
Chicago, Illinois, United States, 60637
Contact: Site Public Contact    773-702-8222   
Principal Investigator: Ami V. Desai         
United States, Massachusetts
Dana-Farber Cancer Institute Recruiting
Boston, Massachusetts, United States, 02215
Contact: Site Public Contact    877-442-3324      
Principal Investigator: Suzanne Shusterman         
United States, Pennsylvania
Children's Hospital of Philadelphia Recruiting
Philadelphia, Pennsylvania, United States, 19104
Contact: Site Public Contact    267-425-5544   
Principal Investigator: Yael P. Mosse         
United States, Texas
Baylor College of Medicine/Dan L Duncan Comprehensive Cancer Center Recruiting
Houston, Texas, United States, 77030
Contact: Site Public Contact    713-798-1354   
Principal Investigator: Shoba A. Navai         
United States, Washington
Seattle Children's Hospital Recruiting
Seattle, Washington, United States, 98105
Contact: Site Public Contact    866-987-2000      
Principal Investigator: Julie R. Park         
Canada, British Columbia
British Columbia Children's Hospital Recruiting
Vancouver, British Columbia, Canada, V6H 3V4
Contact: Site Public Contact    604-875-2345 ext 6477      
Principal Investigator: Rebecca J. Deyell         
Canada, Ontario
Hospital for Sick Children Recruiting
Toronto, Ontario, Canada, M5G 1X8
Contact: Site Public Contact    416-813-7654   
Principal Investigator: Daniel A. Morgenstern         
Sponsors and Collaborators
National Cancer Institute (NCI)
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Principal Investigator: Robbie G Majzner Cancer Immunotherapy Trials Network
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Responsible Party: National Cancer Institute (NCI) Identifier: NCT04751383    
Other Study ID Numbers: NCI-2021-00913
NCI-2021-00913 ( Registry Identifier: CTRP (Clinical Trial Reporting Program) )
PED-CITN-03 ( Other Identifier: Cancer Immunotherapy Trials Network )
PED-CITN-03 ( Other Identifier: CTEP )
P30CA015704 ( U.S. NIH Grant/Contract )
U01CA154967 ( U.S. NIH Grant/Contract )
First Posted: February 12, 2021    Key Record Dates
Last Update Posted: June 30, 2022
Last Verified: May 2022
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: NCI is committed to sharing data in accordance with NIH policy. For more details on how clinical trial data is shared, access the link to the NIH data sharing policy page

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Disease Attributes
Pathologic Processes
Neuroectodermal Tumors, Primitive, Peripheral
Neuroectodermal Tumors, Primitive
Neoplasms, Neuroepithelial
Neuroectodermal Tumors
Neoplasms, Germ Cell and Embryonal
Neoplasms by Histologic Type
Neoplasms, Glandular and Epithelial
Neoplasms, Nerve Tissue
Neoplasms, Bone Tissue
Neoplasms, Connective Tissue
Neoplasms, Connective and Soft Tissue
Antineoplastic Agents
Antineoplastic Agents, Immunological