Comparing Two Different Myeloablation Therapies in Treating Young Patients Who Are Undergoing a Stem Cell Transplant for High-Risk Neuroblastoma

Phase 3

Completed

• Conditions: Localized Resectable Neuroblastoma; Localized Unresectable Neuroblastoma; Recurrent Neuroblastoma; Regional Neuroblastoma; Stage 4 Neuroblastoma; Stage 4S Neuroblastoma
• Interventions: Procedure: Autologous Hematopoietic Stem Cell Transplantation; Drug: Carboplatin; Drug: Cisplatin; Drug: Cyclophosphamide; Drug: Doxorubicin Hydrochloride; Drug: Etoposide; Radiation: External Beam Radiation Therapy; Biological: Filgrastim; Drug: Isotretinoin; Other: Laboratory Biomarker Analysis; Drug: Melphalan; Procedure: Peripheral Blood Stem Cell Transplantation; Other: Pharmacological Study; Drug: Topotecan Hydrochloride; Drug: Thiotepa; Drug: Vincristine Sulfate Liposome

• Registration Number: NCT00567567
• Lead Sponsor: Children's Oncology Group

Brief Summary

This randomized phase III trial compares two different high-dose chemotherapy regimens followed by a stem cell transplant in treating younger patients with high-risk neuroblastoma. Drugs used in chemotherapy work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving combination chemotherapy before surgery may make the tumor smaller and reduce the amount of normal tissue that needs to be removed. Giving these treatments before a peripheral blood stem cell transplant helps kill any tumor cells that are in the body and helps make room in the patient?s bone marrow for new blood-forming cells (stem cells) to grow. After treatment, stem cells are collected from the patient's blood and stored. High-dose chemotherapy and radiation therapy is then given to prepare the bone marrow for the stem cell transplant. The stem cells are then returned to the patient to replace the blood-forming cells that were destroyed by the high- chemotherapy. It is not yet known which regimen of high-dose chemotherapy is more effective for patients with high-risk neuroblastoma undergoing a peripheral blood stem cell transplant.

Detailed Description

PRIMARY OBJECTIVES:

I. To improve the 3-year event-free survival (EFS) rate of high-risk neuroblastoma patients through treatment with a tandem consolidation of thiotepa/cyclophosphamide followed by carboplatin/etoposide/melphalan (CEM) as compared to single CEM consolidation.

II. To improve the rate of end-induction complete response and very good partial response, compared to historical controls, by use of a topotecan-containing induction regimen.

III. To improve the 3-year local control rate, compared to historical controls, by increasing the local dose of radiation to the residual primary tumor for patients with less than a gross total resection.

SECONDARY OBJECTIVES:

I. To evaluate the pharmacogenetic relationship of cyclophosphamide metabolizing enzymes (CYP2B6, CYP2C9, and GSTA1 genotypes) with toxicity and response following dose-intensive cyclophosphamide and topotecan induction chemotherapy.

II. To determine if resection completeness is predictive of a) local control rate; or b) EFS rate in patients with high-risk neuroblastoma.

III. To prospectively describe the complications related to efforts at local control (surgery and radiation therapy) in patients with high-risk neuroblastoma.

IV. To describe the neurologic outcome of patients with paraspinal primary neuroblastoma tumors.

V. To determine the variability of 13-cis-retinoic-acid pharmacokinetics and relationship to pharmacogenomic parameters and determine if pharmacokinetics and/or genetic variations correlate with EFS or systemic toxicity as follows: a) To determine the variability of 13-cis-retinoic-acid pharmacokinetics and relationship to pharmacogenomic parameters. b) To determine if 13-cis-retinoic-acid pharmacokinetic levels are predictive of the EFS rate or associated with systemic toxicity following 13-cis-retinoic acid. c) To determine if pharmacogenomic variations are predictive of the EFS rate or associated with systemic toxicity following 13-cis-retinoic acid.

VI. To evaluate total topotecan pharmacokinetics and correlate with patient specific data for use in an ongoing topotecan population pharmacokinetic analysis.

VII. To evaluate the presence and function of T cells capable of recognizing neuroblastoma by assessing: a) if T cells recognizing the neuroblastoma antigen, survivin, circulate at diagnosis; b) if these T cells can be expanded using autologous antigen presenting cells (APCs); c) if these T cells will kill neuroblastoma cells as detected in functional assays; and d) if the presence and activity of anti-neuroblastoma immunity is decreased by stem cell transplantation.

VIII. To characterize the recovery of T- cell numbers after myeloablative consolidation and hematopoietic stem cell transplant (HSCT) and assess the impact of tandem myeloablative consolidation on T- cell recovery.

IX. To characterize minimal residual disease burden using reverse transcriptase-polymerase chain reaction (RT-PCR) evaluation of a panel of neuroblastoma specific transcripts in patient bone marrow and peripheral blood following induction chemotherapy and after single versus tandem myeloablative chemotherapy and to evaluate impact on EFS.

X. To evaluate the EFS and overall survival (OS) rate for patients 12-18 months with Stage 4, MYCN nonamplified tumor with unfavorable histopathology or diploid DNA content or with indeterminant histology or ploidy and patients who are greater than 547 days of age with Stage 3, MYCN nonamplified tumor AND unfavorable histopathology or indeterminant histology following treatment with single myeloablative transplant.

OUTLINE:

INDUCTION CHEMOTHERAPY:

COURSES 1 AND 2: Patients receive cyclophosphamide IV over 30 minutes and topotecan hydrochloride IV over 30 minutes on days 1-5 and filgrastim (G-CSF) subcutaneously (SC) or IV beginning on day 6 and continuing until blood counts recover. Treatment repeats every 21 days for 2 courses. Patients undergo peripheral blood stem cell (PBSC) mobilization and harvest after course 2.

COURSES 3 AND 5: Patients receive cisplatin IV over 1 hour on days 1-4, etoposide IV over 1 hour on days 1-3, and G-CSF SC or IV beginning on day 5 and continuing until blood counts recover. Treatment repeats every 21 days for 2 courses. Patients undergo surgical resection of soft tissue disease after course 5 (or after course 6 if medically necessary).

COURSES 4 AND 6: Patients receive cyclophosphamide IV over 6 hours on days 1-2, doxorubicin hydrochloride IV over 24 hours on days 1-3, vincristine IV on days 1-3, and G-CSF SC or IV beginning on day 5 and continuing until blood counts recover. Treatment repeats every 21 days for 2 courses.

Patients are then stratified by initial stage of disease and MYCN status, biologic characteristics, and response to induction chemotherapy (complete response/very good partial response vs partial response vs mixed response/no response). Patients are randomized to 1 of 2 arms. Patients 12?18 months old (i.e., 365-547 days) with stage IV, MYCN nonamplified tumor with unfavorable histopathology or diploid DNA content or with indeterminant histology or ploidy AND patients who are 547 days of age with stage III, MYCN nonamplified tumor AND unfavorable histopathology or indeterminant histology will be nonrandomly assigned to Arm A. Patients begin consolidation chemotherapy no later than 8 weeks after the start of induction course 6.

CONSOLIDATION THERAPY:

ARM A (single myeloablative consolidation): Patients receive melphalan IV over 15-30 minutes on days -7 to -5, etoposide IV over 24 hours and carboplatin IV over 24 hours on days -7 to -4, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Patients undergo autologous peripheral blood stem cell transplant (PBSCT) on day 0.

ARM B (tandem myeloablative consolidation): Patients receive thiotepa IV over 2 hours on days -7 to -5, cyclophosphamide IV over 1 hour on days -5 to -2, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Following clinical recovery from initial myeloablative therapy, patients also receive melphalan, etoposide, and carboplatin as in Arm A. Patients undergo autologous PBSCT on day 0.

RADIOTHERAPY: Patients undergo external beam radiation therapy (EBRT) to primary site of disease as well as to MIBG-avid sites seen at pre-transplantation (i.e., end-induction) evaluation between 28-42 days post-transplant. Additional radiotherapy is administered to residual tumor at primary site.

MAINTENANCE THERAPY: Patients are encouraged to enroll onto Children?s Oncology Group (COG)-ANBL0032 following assessment of tumor response after completion of the consolidation phase and radiotherapy. Beginning on day 60 post-transplantation patients receive oral isotretinoin twice daily on days 1-14. Treatment repeats every 28 days for up to 6 months in the absence of disease progression or unacceptable toxicity. Patients undergo blood and tissue sample collection periodically for the following analyses; correlation between peak serum concentration level and the existence of polymorphisms, event-free survival, and toxicity rates; pharmacogenomics for uridine diphosphate (UDP) glucuronosyltransferase 1 family, polypeptide A1 (UGT1A1), UGT2B7, CYP2C8 and CYP3A7 alleles; topotecan systemic clearance; survivin-specific cytotoxic T-lymphocytes (CTLs) detected using peptide/major histocompatibility complex (MHC) tetramers in human leukocyte antigen (HLA)-A2+ patients; interferon (IFN)-gamma production in enzyme-linked immunospot (ELISPOT) assays to APCs loaded with tumor ribonucleic acid (RNA), survivin RNA, or control RNA; response of APC-stimulated CTL response to neuroblastoma cells; rate of T cell recovery; and proportion of patients with neuroblastoma detected in bone marrow and peripheral blood using RT-PCR and immunohistochemistry (IHC).

After completion of study treatment, patients are followed up periodically for 5 years and then annually for 5 years.

Study Timeline

• Study Start: 2007-11-05
• Study First Submitted: 2007-12-04
• Study First Submitted QC: 2007-12-04
• Study First Posted: 2007-12-05
• Primary Completion: 2015-02-27
• Results First Submitted: 2017-01-20
• Results First Submitted QC: 2017-05-22
• Results First Posted: 2017-06-27
• Status Verified: 2021-12
• Study Completion: 2022-03-31
• Last Update Submitted: 2022-04-01
• Last Update Posted: 2022-04-28

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 665

Inclusion Criteria

• Diagnosis of neuroblastoma or ganglioneuroblastoma by histology or as evidenced by the presence of clumps of tumor cells in bone marrow and elevated catecholamine metabolites in urine meeting any of the following criteria:

  • Patients with newly diagnosed neuroblastoma with International Neuroblastoma Staging System (INSS) stage 4 disease are eligible with the following:

    • MYCN amplification (i.e., greater than four-fold increase in MYCN signals as compared to reference signals), regardless of age or additional biologic features
    • Age > 18 months (i.e., > 547 days) regardless of biologic features
    • Age 12-18 months (i.e., 365-547 days) with none of the following three favorable biologic features (i.e., non-amplified MYCN, favorable pathology, and deoxyribonucleic acid [DNA] index > 1)

  • Patients with newly diagnosed neuroblastoma with INSS stage 3 are eligible with the following:

    • MYCN amplification (i.e., greater than four-fold increase in MYCN signals as compared to reference signals), regardless of age or additional biologic features
    • Age > 18 months (i.e., > 547 days) with unfavorable pathology, regardless of MYCN status

  • Patients with newly diagnosed INSS stage 2a or 2b with MYCN amplification (i.e., greater than four-fold increase in MYCN signals as compared to reference signals), regardless of age or additional biologic features

  • Patients with newly diagnosed INSS stage 4s with MYCN amplification (i.e., greater than four-fold increase in MYCN signals as compared to reference signals), regardless of additional biologic features

  • Patients >= 365 days initially diagnosed with INSS stage 1, 2, or 4S and who progressed to a stage 4 without interval chemotherapy

    • Must have been enrolled on COG-ANBL00B1

• Creatinine clearance or radioisotope glomerular filtration rate ? 70mL/min OR serum creatinine based on age/gender as follows:

  • 1 month to < 6 months: 0.4 mg/dL
  • 6 months to < 1 year: 0.5 mg/dL
  • 1 to < 2 years: 0.6 mg/dL
  • 2 to < 6 years: 0.8 mg/dL
  • 6 to < 10 years: 1 mg/dL
  • 10 to < 13 years: 1.2 mg/dL
  • 10 to < 16 years: 1.5 mg/dL (male), 1.4 mg/dL (female)
  • >= 16 years: 1.7 mg/dL (male), 1.4 mg/dL (female)

• Total bilirubin ? 1.5 times upper limit of normal (ULN) for age

• Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) < 10 times ULN for age

• Not pregnant or nursing

• Negative pregnancy test

• Shortening fraction >= 27% by echocardiogram (ECHO) OR left ventricular ejection fraction (LVEF) >= 50% by radionuclide angiogram

• No known contraindication (e.g., size, weight or physical condition) to peripheral blood stem cell collection

• No prior systemic therapy except for localized emergency radiation to sites of life-threatening or function-threatening disease

• No more than one course of chemotherapy per low- or intermediate-risk neuroblastoma therapy prior to determination of MYCN amplification and histology

Exclusion Criteria

Not provided

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Consolidation Arm A: single myeloablative consolidation	Autologous Hematopoietic Stem Cell Transplantation	Patients receive melphalan IV over 15-30 minutes on days -7 to -5, etoposide IV over 24 hours and carboplatin IV over 24 hours on days -7 to -4, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Patients undergo autologous PBSCT on day 0.
Consolidation Arm A: single myeloablative consolidation	Etoposide	Patients receive melphalan IV over 15-30 minutes on days -7 to -5, etoposide IV over 24 hours and carboplatin IV over 24 hours on days -7 to -4, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Patients undergo autologous PBSCT on day 0.
Consolidation Arm A: single myeloablative consolidation	External Beam Radiation Therapy	Patients receive melphalan IV over 15-30 minutes on days -7 to -5, etoposide IV over 24 hours and carboplatin IV over 24 hours on days -7 to -4, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Patients undergo autologous PBSCT on day 0.
Consolidation Arm A: single myeloablative consolidation	Filgrastim	Patients receive melphalan IV over 15-30 minutes on days -7 to -5, etoposide IV over 24 hours and carboplatin IV over 24 hours on days -7 to -4, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Patients undergo autologous PBSCT on day 0.
Consolidation Arm A: single myeloablative consolidation	Laboratory Biomarker Analysis	Patients receive melphalan IV over 15-30 minutes on days -7 to -5, etoposide IV over 24 hours and carboplatin IV over 24 hours on days -7 to -4, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Patients undergo autologous PBSCT on day 0.
Consolidation Arm A: single myeloablative consolidation	Pharmacological Study	Patients receive melphalan IV over 15-30 minutes on days -7 to -5, etoposide IV over 24 hours and carboplatin IV over 24 hours on days -7 to -4, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Patients undergo autologous PBSCT on day 0.
Consolidation Arm A: single myeloablative consolidation	Topotecan Hydrochloride	Patients receive melphalan IV over 15-30 minutes on days -7 to -5, etoposide IV over 24 hours and carboplatin IV over 24 hours on days -7 to -4, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Patients undergo autologous PBSCT on day 0.
Consolidation Arm A: single myeloablative consolidation	Vincristine Sulfate Liposome	Patients receive melphalan IV over 15-30 minutes on days -7 to -5, etoposide IV over 24 hours and carboplatin IV over 24 hours on days -7 to -4, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Patients undergo autologous PBSCT on day 0.
Consolidation Arm B: tandem myeloablative consolidation	Autologous Hematopoietic Stem Cell Transplantation	Patients receive thiotepa IV over 2 hours on days -7 to -5, cyclophosphamide IV over 1 hour on days -5 to -2, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Following clinical recovery from initial myeloablative therapy, patients also receive melphalan, etoposide, and carboplatin as in Arm A. Patients undergo autologous PBSCT on day 0.
Consolidation Arm A: single myeloablative consolidation	Peripheral Blood Stem Cell Transplantation	Patients receive melphalan IV over 15-30 minutes on days -7 to -5, etoposide IV over 24 hours and carboplatin IV over 24 hours on days -7 to -4, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Patients undergo autologous PBSCT on day 0.
Consolidation Arm B: tandem myeloablative consolidation	Laboratory Biomarker Analysis	Patients receive thiotepa IV over 2 hours on days -7 to -5, cyclophosphamide IV over 1 hour on days -5 to -2, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Following clinical recovery from initial myeloablative therapy, patients also receive melphalan, etoposide, and carboplatin as in Arm A. Patients undergo autologous PBSCT on day 0.
Consolidation Arm B: tandem myeloablative consolidation	External Beam Radiation Therapy	Patients receive thiotepa IV over 2 hours on days -7 to -5, cyclophosphamide IV over 1 hour on days -5 to -2, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Following clinical recovery from initial myeloablative therapy, patients also receive melphalan, etoposide, and carboplatin as in Arm A. Patients undergo autologous PBSCT on day 0.
Consolidation Arm B: tandem myeloablative consolidation	Filgrastim	Patients receive thiotepa IV over 2 hours on days -7 to -5, cyclophosphamide IV over 1 hour on days -5 to -2, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Following clinical recovery from initial myeloablative therapy, patients also receive melphalan, etoposide, and carboplatin as in Arm A. Patients undergo autologous PBSCT on day 0.
Consolidation Arm B: tandem myeloablative consolidation	Isotretinoin	Patients receive thiotepa IV over 2 hours on days -7 to -5, cyclophosphamide IV over 1 hour on days -5 to -2, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Following clinical recovery from initial myeloablative therapy, patients also receive melphalan, etoposide, and carboplatin as in Arm A. Patients undergo autologous PBSCT on day 0.
Consolidation Arm B: tandem myeloablative consolidation	Melphalan	Patients receive thiotepa IV over 2 hours on days -7 to -5, cyclophosphamide IV over 1 hour on days -5 to -2, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Following clinical recovery from initial myeloablative therapy, patients also receive melphalan, etoposide, and carboplatin as in Arm A. Patients undergo autologous PBSCT on day 0.
Consolidation Arm B: tandem myeloablative consolidation	Peripheral Blood Stem Cell Transplantation	Patients receive thiotepa IV over 2 hours on days -7 to -5, cyclophosphamide IV over 1 hour on days -5 to -2, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Following clinical recovery from initial myeloablative therapy, patients also receive melphalan, etoposide, and carboplatin as in Arm A. Patients undergo autologous PBSCT on day 0.
Consolidation Arm B: tandem myeloablative consolidation	Pharmacological Study	Patients receive thiotepa IV over 2 hours on days -7 to -5, cyclophosphamide IV over 1 hour on days -5 to -2, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Following clinical recovery from initial myeloablative therapy, patients also receive melphalan, etoposide, and carboplatin as in Arm A. Patients undergo autologous PBSCT on day 0.
Consolidation Arm B: tandem myeloablative consolidation	Topotecan Hydrochloride	Patients receive thiotepa IV over 2 hours on days -7 to -5, cyclophosphamide IV over 1 hour on days -5 to -2, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Following clinical recovery from initial myeloablative therapy, patients also receive melphalan, etoposide, and carboplatin as in Arm A. Patients undergo autologous PBSCT on day 0.
Consolidation Arm B: tandem myeloablative consolidation	Vincristine Sulfate Liposome	Patients receive thiotepa IV over 2 hours on days -7 to -5, cyclophosphamide IV over 1 hour on days -5 to -2, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Following clinical recovery from initial myeloablative therapy, patients also receive melphalan, etoposide, and carboplatin as in Arm A. Patients undergo autologous PBSCT on day 0.
Consolidation Arm A: single myeloablative consolidation	Carboplatin	Patients receive melphalan IV over 15-30 minutes on days -7 to -5, etoposide IV over 24 hours and carboplatin IV over 24 hours on days -7 to -4, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Patients undergo autologous PBSCT on day 0.
Consolidation Arm A: single myeloablative consolidation	Cyclophosphamide	Patients receive melphalan IV over 15-30 minutes on days -7 to -5, etoposide IV over 24 hours and carboplatin IV over 24 hours on days -7 to -4, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Patients undergo autologous PBSCT on day 0.
Consolidation Arm A: single myeloablative consolidation	Cisplatin	Patients receive melphalan IV over 15-30 minutes on days -7 to -5, etoposide IV over 24 hours and carboplatin IV over 24 hours on days -7 to -4, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Patients undergo autologous PBSCT on day 0.
Consolidation Arm A: single myeloablative consolidation	Doxorubicin Hydrochloride	Patients receive melphalan IV over 15-30 minutes on days -7 to -5, etoposide IV over 24 hours and carboplatin IV over 24 hours on days -7 to -4, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Patients undergo autologous PBSCT on day 0.
Consolidation Arm A: single myeloablative consolidation	Isotretinoin	Patients receive melphalan IV over 15-30 minutes on days -7 to -5, etoposide IV over 24 hours and carboplatin IV over 24 hours on days -7 to -4, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Patients undergo autologous PBSCT on day 0.
Consolidation Arm A: single myeloablative consolidation	Melphalan	Patients receive melphalan IV over 15-30 minutes on days -7 to -5, etoposide IV over 24 hours and carboplatin IV over 24 hours on days -7 to -4, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Patients undergo autologous PBSCT on day 0.
Consolidation Arm B: tandem myeloablative consolidation	Carboplatin	Patients receive thiotepa IV over 2 hours on days -7 to -5, cyclophosphamide IV over 1 hour on days -5 to -2, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Following clinical recovery from initial myeloablative therapy, patients also receive melphalan, etoposide, and carboplatin as in Arm A. Patients undergo autologous PBSCT on day 0.
Consolidation Arm B: tandem myeloablative consolidation	Cisplatin	Patients receive thiotepa IV over 2 hours on days -7 to -5, cyclophosphamide IV over 1 hour on days -5 to -2, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Following clinical recovery from initial myeloablative therapy, patients also receive melphalan, etoposide, and carboplatin as in Arm A. Patients undergo autologous PBSCT on day 0.
Consolidation Arm B: tandem myeloablative consolidation	Cyclophosphamide	Patients receive thiotepa IV over 2 hours on days -7 to -5, cyclophosphamide IV over 1 hour on days -5 to -2, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Following clinical recovery from initial myeloablative therapy, patients also receive melphalan, etoposide, and carboplatin as in Arm A. Patients undergo autologous PBSCT on day 0.
Consolidation Arm B: tandem myeloablative consolidation	Etoposide	Patients receive thiotepa IV over 2 hours on days -7 to -5, cyclophosphamide IV over 1 hour on days -5 to -2, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Following clinical recovery from initial myeloablative therapy, patients also receive melphalan, etoposide, and carboplatin as in Arm A. Patients undergo autologous PBSCT on day 0.
Consolidation Arm B: tandem myeloablative consolidation	Doxorubicin Hydrochloride	Patients receive thiotepa IV over 2 hours on days -7 to -5, cyclophosphamide IV over 1 hour on days -5 to -2, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Following clinical recovery from initial myeloablative therapy, patients also receive melphalan, etoposide, and carboplatin as in Arm A. Patients undergo autologous PBSCT on day 0.
Consolidation Arm B: tandem myeloablative consolidation	Thiotepa	Patients receive thiotepa IV over 2 hours on days -7 to -5, cyclophosphamide IV over 1 hour on days -5 to -2, and G-CSF SC or IV beginning on day 0 and continuing until blood counts recover. Following clinical recovery from initial myeloablative therapy, patients also receive melphalan, etoposide, and carboplatin as in Arm A. Patients undergo autologous PBSCT on day 0.

Primary Outcome Measures

Name	Time	Method
Incidence Rate of Local Recurrence	Up to 3 years	Cumulative incidence rate of local recurrence comparison between ANBL0532 patients randomized or assigned to receive single CEM transplant and boost radiation versus the historical A3973 patients who were transplanted and received boost radiation.
Event-free Survival Rate	Three years, from time of randomization	Comparison of EFS curves, starting from the time of randomization, by treatment group (single CEM vs. tandem CEM)
Response After Induction Therapy	Study enrollment to the end of induction therapy	Per the International Response Criteria: measurable tumor defined as product of longest x widest perpendicular diameter. Elevated catecholamine levels, tumor cell invasion of bone marrow also considered measurable tumor. Complete Response (CR)-no evidence of primary tumor or metastases. Very Good Partial Response (VGPR)-\>90% reduction of primary tumor; no metastases; no new bone lesions, all pre-existing lesions improved. Partial Response (PR)-50-90% reduction of primary tumor; \>50% reduction in measurable sites of metastases; 0-1 bone marrow samples with tumor; number of positive bone sites decreased by \>50%. Mixed Response (MR)-\>50% reduction of any measurable lesion (primary or metastases) with \<50% reduction in other sites; no new lesions; \<25% increase in any existing lesion. No Response (NR)-no new lesions; \<50% reduction but \<25% increase in any existing legions. Progressive Disease (PD)-any new/increased measurable lesion by \>25%; previous negative marrow positive.

Secondary Outcome Measures

Name	Time	Method
Surgical Response	Up to 3 years	Percentage of patients who achieved a surgical complete resection
Type of Surgical or Radiotherapy Complication	Up to 3 years	The Percentage of patients who experienced surgical or radiotherapy complications will be calculated. The complications are: bowel obstruction, chylous leaf, renal injury/atrophy/loss and diarrhea.
Duration of Greater Than or Equal to Grade 3 Neutropenia	Through completion of a participant's first cycle during induction, including treatment delays, assessed up to 39 days	A logistic regression model will be used to test the ability of the number of days of neutropenia to predict the presence of a polymorphism.
Duration of Greater Than or Equal to Grade 3 Thrombocytopenia	Through completion of a participant's first cycle during induction, including treatment delays, assessed up to 46 days	A logistic regression model will be used to test the ability of the number of days of thrombocytopenia to predict the presence of a polymorphism.
Pharmacogenetic Variants in Patients Enrolled on Either A3973, ANBL0032, ANBL0931, ANBL0532 and Future High Risk Studies	At baseline	To determine if pharmacogenomic variations are predictive of EFS, a logrank test comparison of patients with vs without a given polymorphism will be made. A Fisher's exact test will test for association of the presence of a polymorphism with the occurrence of systemic toxicity (CTC grade 3 or 4 skin, hypercalcemia, or hepatic toxicity). These tests will be performed for UGT1A1, UGT2B7, CYP2C8 and CYP3A7 alleles.
Proportion of Patients With a Polymorphism	Through completion of a participant's first two cycles during induction, including treatment delays, assessed up to 69 days	A chi-square test will be used to test whether the response rate after two cycles of induction therapy and the presence of a polymorphism are independent in the study population.
Intraspinal Extension	Up to 5 years	Percentage of patients with primary tumors with intraspinal extension.
Peak Serum Concentration of Isotretinoin in Patients Enrolled on Either A3973, ANBL0032, ANBL0931, ANBL0532 and Future High Risk Studies	Day 1 of each course	Median peak serum concentration level of isotretinoin for patients enrolled on ANBL0532
Topotecan Systemic Clearance	Day 1 of courses 1-2	Median topotecan systemic clearance for courses 1 and 2.
Presence and Function of T Cells Capable of Recognizing Neuroblastoma	Up to 6 months (end of therapy)
Enumeration of Peripheral Blood Cluster of Differentiation (CD)3, CD4, and CD8 Cells	Up to 6 months after completion of assigned myeloablation therapy	A descriptive comparison of the median number of T-cells (CD3, CD4, CD8) between treatment arms (single vs. tandem myeloablative regimens) will be performed.
Proportion of Patients With Neuroblastoma Detected in Bone Marrow and Peripheral Blood Using RT-PCR Technique	Baseline	Will be calculated overall and by treatment arm.
EFS Pts Non-randomly Assigned to Single CEM (12-18 Mths, Stg. 4, MYCN Nonamplified Tumor/Unfavorable or Indeterminant Histopathology/Diploid DNA Content & Pts>547 Days, Stg.3, MYCN Nonamplified Tumor AND Unfavorable or Indeterminant Histopathology).	Up to 3 years	Kaplan-Meier curves of EFS will be plotted, and the proportion of responders to induction therapy will be tabulated.
OS in Patients 12-18 Months, Stage 4, MYCN Nonamplified Tumor/Unfavorable Histopathology/Diploid DNA Content/Indeterminant Histology/Ploidy and Patients > 547 Days, Stage 3, MYCN Nonamplified Tumor AND Unfavorable Histopathology/Indeterminant Histology	Up to 3 years	Kaplan-Meier curves of OS will be plotted, and the proportion of responders to induction therapy will be tabulated.

Trial Locations

Locations (190)

Children's Hospital of Alabama; 🇺🇸 Birmingham, Alabama, United States

University of Alabama at Birmingham Cancer Center; 🇺🇸 Birmingham, Alabama, United States

USA Health Strada Patient Care Center; 🇺🇸 Mobile, Alabama, United States

Phoenix Childrens Hospital; 🇺🇸 Phoenix, Arizona, United States

The University of Arizona Medical Center-University Campus; 🇺🇸 Tucson, Arizona, United States

Arkansas Children's Hospital; 🇺🇸 Little Rock, Arkansas, United States

University of Arkansas for Medical Sciences; 🇺🇸 Little Rock, Arkansas, United States

Kaiser Permanente Downey Medical Center; 🇺🇸 Downey, California, United States

City of Hope Comprehensive Cancer Center; 🇺🇸 Duarte, California, United States

Loma Linda University Medical Center; 🇺🇸 Loma Linda, California, United States

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