Rhabdomyosarcoma is a type of cancer that occurs in the soft tissues in the body. This phase III trial aims to maintain excellent outcomes in patients with very low risk rhabdomyosarcoma (VLR-RMS) while decreasing the burden of therapy using treatment with 24 weeks of vincristine and dactinomycin (VA) and examines the use of centralized molecular risk stratification in the treatment of rhabdomyosarcoma. Another aim of the study it to find out how well patients with low risk rhabdomyosarcoma (LR-RMS) respond to standard chemotherapy when patients with VLR-RMS and patients who have rhabdomyosarcoma with DNA mutations get separate treatment. Finally, this study examines the effect of therapy intensification in patients who have RMS cancer with DNA mutations to see if their outcomes can be improved.
PRIMARY OBJECTIVES: I. To evaluate the failure free survival (FFS) of patients with very low-risk (VLR) rhabdomyosarcoma (RMS) (fusion negative \[FN\], stage 1, clinical group \[CG\] I, MYOD1 wildtype \[WT\], TP53 \[WT\]) when treated with 24 weeks of vincristine and dactinomycin (VA). II. To evaluate the FFS of patients with low-risk (LR) RMS (FN, stage 1 CG II, or stage 2 CG I/II or CG III \[orbit only\], MYOD1 WT, TP53 WT) when treated with 12 weeks of vincristine, dactinomycin and cyclophosphamide (VAC) followed by 12 weeks of VA. SECONDARY OBJECTIVES: I. To evaluate the overall survival (OS) of patients with VLR RMS treated with 24 weeks of VA. II. To evaluate the OS of patients with LR RMS treated with 12 weeks of VAC followed by 12 weeks of VA. III. To demonstrate the feasibility of central molecular risk stratification of patients with newly diagnosed RMS in the context of a prospective clinical trial. EXPLORATORY OBJECTIVES: I. To collect blood and tissue samples for banking at baseline, during treatment, at the end of therapy, and at the time of progression to bank for future research. II. To describe the methylation array profile of patients with fusion negative, low-risk rhabdomyosarcoma. III. To describe the outcomes of patients with VLR or LR RMS and MYOD1 or TP53 mutations treated with intensified therapy. OUTLINE: Patients are assigned to 1 of 2 regimens based on clinical features. Patients with positive mutation status are transitioned to a third regimen, Regimen M. REGIMEN VA: Patients with VLR RMS receive vincristine intravenously (IV) on day 1 of each cycle and days 8 and 15 of cycles 1, 3, 5, and 7 and dactinomycin IV over 1-5 minutes or over 10-15 minutes on day 1 of each cycle. Treatment repeats every 21 days for 8 cycles in the absence of disease progression or unacceptable toxicity. Patients with MYOD1 or TP53 mutated tumors transition to Regimen M at cycle 2 (if mutation status is determined to be positive at week 3) or cycle 3 (if mutation status is determined to be positive after week 3). REGIMEN VAC/VA: Patients with LR RMS receive vincristine IV on day 1 of each cycle and days 8 and 15 of cycles 1-3. Patients also receive dactinomycin IV over 1-5 minutes or 10-15 minutes and cyclophosphamide IV over 60 minutes on day 1 of each cycle. Treatment repeats every 21 days for 4 cycles in the absence of disease progression or unacceptable toxicity. Patients then receive vincristine IV on day 1 of each cycle and days 8 and 15 of cycles 5-7 and dactinomycin IV over 1-5 minutes or over 10-15 minutes on day 1 of each cycle. Treatment repeats every 21 days for 4 cycles in the absence of disease progression or unacceptable toxicity. Patients with MYOD1 or TP53 mutated tumors transition to Regimen M at cycle 2 (if mutation status is determined to be positive at week 3) or cycle 3 (if mutation status is determined to be positive after week 3). Patients may also undergo radiation therapy at cycle 5. REGIMEN M: Patients receive vincristine IV on day 1 of each cycle and days 8 and 15 of cycles 2-4, 7-8, and 11-12 and dactinomycin IV over 1-5 minutes or 10-15 minutes on day 1 of cycles 2-5 and 8-14. Patients also receive cyclophosphamide IV over 60 minutes on day 1 of each cycle. Treatment repeats every 21 days for 12-13 cycles in the absence of disease progression or unacceptable toxicity. Patients may also undergo radiation therapy at cycle 5. Patients undergo computed tomography (CT) scan, magnetic resonance imaging (MRI), bone scan, positron emission tomography (PET) scan and tumor biopsy throughout the study.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
205
Undergo tumor biopsy
Undergo bone scan
Undergo CT scan
Given IV
Given IV
Undergo MRI
Undergo PET scan
Undergo radiation
Given IV
Children's Hospital of Alabama
Birmingham, Alabama, United States
RECRUITINGUSA Health Strada Patient Care Center
Mobile, Alabama, United States
RECRUITINGPhoenix Childrens Hospital
Phoenix, Arizona, United States
RECRUITINGArkansas Children's Hospital
Little Rock, Arkansas, United States
Failure free survival (FFS) for very low risk patients
The Kaplan-Meier method will be used to estimate 3-year FFS along with 80% log-minus-log transformed confidence limits for very low risk (VLR) patients.
Time frame: From study enrollment to disease progression, recurrence, or death as a first event, assessed up to 3 years
Failure free survival (FFS) for low risk patients
The Kaplan-Meier method will be used to estimate 3 year FFS along with 80% log-minus-log transformed confidence limits for low risk (LR) patients.
Time frame: From study enrollment to disease progression, recurrence, or death as a first event, assessed up to 3 years
Overall survival (OS) for very low risk patients
Log-rank test will be used to compare the OS of patients with VLR rhabdomyosarcoma (RMS) treated with 24 weeks of vincristine, dactinomycin (VA) to the VLR RMS patients from ARST0331 and D9602 with the same inclusion criteria.
Time frame: From study entry to death of any cause, assessed up to 5 years
Overall survival (OS) for low risk patients
Log-rank test will be used to compare the OS from LR RMS patients to LR RMS patients from ARST0331 and D9602 with the same inclusion criteria.
Time frame: From study entry to death of any cause, assessed up to 5 years
Feasibility of central molecular risk stratification of patients assessed by the percentage of patients who have molecular testing results returned by 6 weeks
If the percentage of patients who have molecular testing results returned by 6 weeks is \>= 80% then the central molecular risk stratification is considered feasible.
Time frame: Up to 24 weeks
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Kaiser Permanente Downey Medical Center
Downey, California, United States
RECRUITINGLoma Linda University Medical Center
Loma Linda, California, United States
RECRUITINGMiller Children's and Women's Hospital Long Beach
Long Beach, California, United States
RECRUITINGChildren's Hospital Los Angeles
Los Angeles, California, United States
RECRUITINGCedars Sinai Medical Center
Los Angeles, California, United States
RECRUITINGMattel Children's Hospital UCLA
Los Angeles, California, United States
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