Patients will then be randomized at study entry to one of three treatment arms. Patients on Arm A will receive a single treatment course with 131I-MIBG with vorinostat. Patients on Arm B will receive a single treatment course with 131I-MIBG and dinutuximab. Patients on Arm C will receive a single treatment course with 131I-MIBG with dinutuximab + vorinostat. After this course of treatment, we will check to see your response and then check to see how you are doing over time. All patients may choose to proceed to a second course of the same treatment if they and their physician feel healthy enough to do so. Approximately 118 patients will be receiving therapy on this trial.
The proposed study is a 3-arm randomized, pick-the-winner, phase 2 trial designed to identify the optimal combination 131I-MIBG treatment regimen for further study. The three treatment arms are 131I-MIBG + vorinostat; 131I-MIBG + dinutuximab; and 131I-MIBG + dinutuximab + vorinostat. Objective response rate following a single course of therapy will be the primary endpoint driving selection of the regimen to move forward into future studies.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
118
Patients will receive 131I-MIBG 18 mCi/kg (maximum dose 1200 mCi) on Day 1
Dinutuximab 17.5 mg/m2/day is given intravenously on Days 8-11 and 29-32 of therapy
Vorinostat will be given on days 0-13 at a dose of 180 mg/m2/dose (maximum dose 400 mg).
Children's Hospital Los Angeles
Los Angeles, California, United States
UCSF Helen Diller Family Comprehensive Cancer Center
San Francisco, California, United States
Children Hospital of Colorado
Aurora, Colorado, United States
Children's Healthcare of Atlanta
Atlanta, Georgia, United States
Children's Memorial Hospital - Chicago
Chicago, Illinois, United States
Childrens Hospital Boston, Dana-Farber Cancer Institute.
Boston, Massachusetts, United States
C.S Mott Children's Hospital
Ann Arbor, Michigan, United States
Cincinnati Children's Hospital Medical Center
Cincinnati, Ohio, United States
Children's Hospital of Philadelphia
Philadelphia, Pennsylvania, United States
St. Jude Children's Research Hospital
Memphis, Tennessee, United States
...and 3 more locations
Objective Tumor Response After One Course of Therapy
To identify the MIBG treatment regimen associated with the highest overall response rate after one course of treatment on the three arms. The response evaluation was based on central review (intent to treat analysis). Responders defined as meeting CR/MRD/PR criteria. Response was based on NANT response criteria v1.2 (https://doi.org/10.1002/pbc.26940). RECST 1.1 criteria was used for measurable tumors with PR criteria \> 30% decrease in target tumor size. Curie score was used with PR criteria \> 50% decrease in Curie score. Complete Response- disappearance of all target lesions, Curie score of 0 and no detectable bone marrow disease. Overall Response (OR)=CR+PR.
Time frame: 43-50 days from study day 1
Number of Participants With Grade 3 or Greater Non-hematologic Toxicities
Compare toxicity profiles for grade 3 or greater toxicities associated with each of 131I-MIBG treatment regimens; 131I-MIBG with vorinostat; 131I-MIBG with dinutuximab; or 131I-MIBG with vorinostat and dinutuximab
Time frame: All toxicities from enrollment through 30 days following end of protocol therapy, an average of 6 months
Objective Tumor Response After Two Courses of Therapy
To identify the MIBG treatment regimen associated with the highest overall response rate after two courses of treatment on the three arms. The response evaluation was based on central review (intent to treat analysis). Responders defined as meeting CR/MRD/PR criteria. Response was based on NANT response criteria v1.2 (https://doi.org/10.1002/pbc.26940). RECST 1.1 criteria was used for measurable tumors with PR criteria \> 30% decrease in target tumor size. Curie score was used with PR criteria \> 50% decrease in Curie score. Complete Response- disappearance of all target lesions, Curie score of 0 and no detectable bone marrow disease. Overall Response (OR)=CR+PR.
Time frame: 43-50 days from study day 1
Objective Bone Marrow Tumor Response After One Course of Therapy
To identify the MIBG treatment regimen associated with the highest bone marrow response rate after one course of treatment on the three arms. The response evaluation was based on central review (intent to treat analysis). Responders defined as meeting CR/MRD/PR criteria. Response was based on NANT response criteria v1.2 (https://doi.org/10.1002/pbc.26940). RECST 1.1 criteria was used for measurable tumors with PR criteria \> 30% decrease in target tumor size. Curie score was used with PR criteria \> 50% decrease in Curie score. Complete Response- disappearance of all target lesions, Curie score of 0 and no detectable bone marrow disease. Overall Response (OR)=CR+PR.
Time frame: 43-50 days from study day 1
Objective Bone Marrow Tumor Response After Two Courses of Therapy
To identify the MIBG treatment regimen associated with the highest bone marrow response rate after two courses of treatment on the three arms. The response evaluation was based on central review (intent to treat analysis). Responders defined as meeting CR/MRD/PR criteria. Response was based on NANT response criteria v1.2 (https://doi.org/10.1002/pbc.26940). RECST 1.1 criteria was used for measurable tumors with PR criteria \> 30% decrease in target tumor size. Curie score was used with PR criteria \> 50% decrease in Curie score. Complete Response- disappearance of all target lesions, Curie score of 0 and no detectable bone marrow disease. Overall Response (OR)=CR+PR.
Time frame: 43-50 days from study day 1
Objective Soft Tissue Tumor Response After One Course of Therapy
To identify the MIBG treatment regimen associated with the highest soft tissue response rate after one course of treatment on the three arms. The response evaluation was based on central review (intent to treat analysis). Responders defined as meeting CR/MRD/PR criteria. Response was based on NANT response criteria v1.2 (https://doi.org/10.1002/pbc.26940). RECST 1.1 criteria was used for measurable tumors with PR criteria \> 30% decrease in target tumor size. Curie score was used with PR criteria \> 50% decrease in Curie score. Complete Response- disappearance of all target lesions, Curie score of 0 and no detectable bone marrow disease. Overall Response (OR)=CR+PR.
Time frame: 43-50 days from study day 1
Objective Soft Tissue Tumor Response After Two Courses of Therapy
To identify the MIBG treatment regimen associated with the highest soft tissue response rate after two courses of treatment on the three arms. The response evaluation was based on central review (intent to treat analysis). Responders defined as meeting CR/MRD/PR criteria. Response was based on NANT response criteria v1.2 (https://doi.org/10.1002/pbc.26940). RECST 1.1 criteria was used for measurable tumors with PR criteria \> 30% decrease in target tumor size. Curie score was used with PR criteria \> 50% decrease in Curie score. Complete Response- disappearance of all target lesions, Curie score of 0 and no detectable bone marrow disease. Overall Response (OR)=CR+PR.
Time frame: 43-50 days from study day 1
Objective Bone Tumor Response After One Course of Therapy
To identify the MIBG treatment regimen associated with the highest bone response rate after one course of treatment on the three arms. The response evaluation was based on central review (intent to treat analysis). Responders defined as meeting CR/MRD/PR criteria. Response was based on NANT response criteria v1.2 (https://doi.org/10.1002/pbc.26940). RECST 1.1 criteria was used for measurable tumors with PR criteria \> 30% decrease in target tumor size. Curie score was used with PR criteria \> 50% decrease in Curie score. Complete Response- disappearance of all target lesions, Curie score of 0 and no detectable bone marrow disease. Overall Response (OR)=CR+PR.
Time frame: 43-50 days from study day 1
Objective Bone Tumor Response After Two Courses of Therapy
To identify the MIBG treatment regimen associated with the highest bone response rate after two courses of treatment on the three arms. The response evaluation was based on central review (intent to treat analysis). Responders defined as meeting CR/MRD/PR criteria. Response was based on NANT response criteria v1.2 (https://doi.org/10.1002/pbc.26940). RECST 1.1 criteria was used for measurable tumors with PR criteria \> 30% decrease in target tumor size. Curie score was used with PR criteria \> 50% decrease in Curie score. Complete Response- disappearance of all target lesions, Curie score of 0 and no detectable bone marrow disease. Overall Response (OR)=CR+PR.
Time frame: 43-50 days from study day 1
Objective MIBG Tumor Response After One Course of Therapy
To identify the MIBG treatment regimen associated with the highest MIBG response rate after one course of treatment on the three arms. The response evaluation was based on central review (intent to treat analysis). Responders defined as meeting CR/MRD/PR criteria. Response was based on NANT response criteria v1.2 (https://doi.org/10.1002/pbc.26940). RECST 1.1 criteria was used for measurable tumors with PR criteria \> 30% decrease in target tumor size. Curie score was used with PR criteria \> 50% decrease in Curie score. Complete Response- disappearance of all target lesions, Curie score of 0 and no detectable bone marrow disease. Overall Response (OR)=CR+PR.
Time frame: 43-50 days from study day 1
Objective MIBG Tumor Response After Two Courses of Therapy
To identify the MIBG treatment regimen associated with the highest MIBG response rate after two courses of treatment on the three arms. The response evaluation was based on central review (intent to treat analysis). Responders defined as meeting CR/MRD/PR criteria. Response was based on NANT response criteria v1.2 (https://doi.org/10.1002/pbc.26940). RECST 1.1 criteria was used for measurable tumors with PR criteria \> 30% decrease in target tumor size. Curie score was used with PR criteria \> 50% decrease in Curie score. Complete Response- disappearance of all target lesions, Curie score of 0 and no detectable bone marrow disease. Overall Response (OR)=CR+PR.
Time frame: 43-50 days from study day 1
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