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About
RATIONALE: Drugs used in chemotherapy, such as carboplatin, cyclophosphamide, etoposide, and doxorubicin hydrochloride, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Isotretinoin may help neuroblastoma cells become more like normal cells, and grow and spread more slowly. Giving combination chemotherapy before surgery may make the tumor smaller and make it more likely that the tumor can be surgically removed. It is not yet known what is the minimal amount of chemotherapy needed to achieve sufficient tumor shrinkage to control intermediate risk neuroblastoma and prevent tumor recurrence or metastases.
PURPOSE: This phase III trial is designed to reduce therapy for patients with favorable biology intermediate risk neuroblastoma by decreasing the number of chemotherapy cycles administered and by allowing for up to 50% residual tumor volume for patients with localized disease.
Full description
OBJECTIVES:
Primary
Secondary
OUTLINE: This is a multicenter study. Patients are assigned to 1 of 3 treatment groups by risk-stratification based on age, stage (INSS stage 2, 3, 4, or 4S), MYCN status (amplified vs not amplified), histopathologic classification, tumor DNA index, and allelic status at chromosome bands 11q23 and 1p36.
Initial chemotherapy: Courses of initial chemotherapy are administered every 21 days according to group assignment as outlined below:
Course 1: Patients receive carboplatin IV over 1 hour on day 1 and etoposide IV over 1 hour on days 1-3.
Course 2: Patients receive carboplatin IV over 1 hour, cyclophosphamide IV over 1 hour, and doxorubicin hydrochloride IV over 15 minutes on day 1.
Course 3: Patients receive cyclophosphamide IV over 1 hour on day 1 and etoposide IV over 1 hour on days 1-3.
Course 4: Patients receive carboplatin IV over 1 hour and doxorubicin hydrochloride IV over 15 minutes on day 1 and etoposide IV over 1 hour on days 1-3.
Course 5: Patients receive cyclophosphamide IV over 1 hour on day 1 and etoposide IV over 1 hour on days 1-3.
Course 6: Patients receive carboplatin IV over 1 hour, cyclophosphamide IV over 1 hour, and doxorubicin hydrochloride IV over 15 minutes on day 1.
Course 7: Patients receive carboplatin IV over 1 hour on day 1 and etoposide IV over 1 hour on days 1-3.
Course 8: Patients receive cyclophosphamide IV over 1 hour and doxorubicin hydrochloride IV over 15 minutes on day 1.
Retrieval chemotherapy*: Patients receive cyclophosphamide IV over 30 minutes and topotecan IV over 30 minutes on days 1-5. Treatment repeats every 21 days for up to 6 courses.
Group 4 patients who develop progressive, non-metastatic disease within 3 years of study enrollment will also receive retrieval chemotherapy with cyclophosphamide and topotecan.
NOTE: *Patients who have previously received cyclophosphamide and topotecan to achieve first PR/VGPR are not eligible for this Retrieval Therapy.
After completion of study therapy, patients are followed up periodically for up to 10 years.
Enrollment
Sex
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Volunteers
Inclusion and exclusion criteria
DISEASE CHARACTERISTICS:
Histologically confirmed neuroblastoma, ganglioneuroblastoma, or ganglioneuroma/maturing subtype
Meets 1 of the following criteria:
Group 2
Group 3
Group 4
INSS stage 3; age < 365 days; MYCN-NA; DI = 1 and/or UH; 1p LOH and/or unb11q LOH (or data missing for either)
INSS stage 3; age 365 to < 547 days; MYCN-NA; UH; any ploidy; any 1p and 11q
INSS stage 4, age < 365 days; MYCN-NA; DI = 1 and/or UH; any 1p and 11q
INSS stage 4; age < 365 days; MYCN-NA; FH; DI > 1; 1p LOH and/or unb11q LOH (or data missing for either)
INSS stage 4; age 365 to < 547 days; MYCN-NA; FH; DI > 1; any 1p and 11q
INSS stage 4S; age < 365 days; MYCN-NA; UH and any ploidy or FH and DI = 1; 1p LOH and/or unb11q LOH (or data missing for either)
INSS stage 4S; age < 365 days; unknown or incomplete biologic features
8 courses of initial chemo - carboplatin, cyclophosphamide, doxorubicin hydrochloride, etoposide, filgrastim.
Patients < 12 months of age with stg 3, 4, or 4S disease who achieve a very good PR (VGPR) to chemo (with the exception of resolution of skin or liver metastases in stage 4S patients) proceed to observation. Patients 12-18 months of age with stg 3 or 4 who achieve VGPR proceed to isotretinoin therapy. No VGPR proceed to retrieval chemo - cyclophosphamide and topotecan hydrochloride. Some patients may also undergo surgery.
Must already be enrolled on protocol COG-ANBL00B1
Simultaneous enrollment on COG-ANBL00B1 and this study allowed for clinical situations in which emergent treatment may be indicated including, but not limited to, the following criteria:
If patient receives study chemotherapy prior to undergoing diagnostic biopsy, the biopsy must be performed within 96 hours of beginning study therapy
The only exception to this requirement is for patients with stage 4S disease who are considered too ill to undergo a diagnostic procedure will be waived the requirement for diagnostic tissue submission but will still need to be enrolled on COG-ANBL00B1
Patients who require emergent therapy, either prior to the diagnostic biopsy or before biology features are available, can be enrolled simultaneously on COG-ANBL00B1 and COG-ANBL0531 to receive emergent protocol therapy
In emergent circumstances, COG-ANBL0531 protocol therapy may be initiated prior to enrollment on study as long as the patient has neuroblastoma by clinical diagnosis, all other COG-ANBL0531 eligibility criteria are met, and the COG-ANBL0531 Initial Therapy consent has been signed prior to starting protocol therapy; in this circumstance ANBL0531 enrollment must occur within 4 working days of starting protocol therapy
Clinical situations in which emergent enrollment and treatment may be indicated include, but are not limited to, the following circumstances:
PATIENT CHARACTERISTICS:
PRIOR CONCURRENT THERAPY:
Primary purpose
Allocation
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464 participants in 4 patient groups
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Data sourced from clinicaltrials.gov
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