A Prospective Phase 3 Study of Patients With Newly Diagnosed Very Low-Risk and Low-Risk Fusion Negative Rhabdomyosarcoma
试验速览
- 阶段
- 3 期
- 状态
- 招募中
- 入组人数
- 205
- 试验地点
- 360
- 主要终点
- Failure free survival (FFS) for very low risk patients
研究概览
简要总结
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.
详细描述
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.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- — 至 21 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •All patients must be enrolled on APEC14B1 (NCT02402244) and consented to the Molecular Characterization Initiative (Part A) prior to enrollment and treatment on ARST2032 (this trial).
- •Patients must be =< 21 years at the time of enrollment.
- •Patients must have newly diagnosed embryonal rhabdomyosarcoma (ERMS), spindle cell/sclerosing RMS, or FOXO1 fusion negative alveolar rhabdomyosarcoma (ARMS) (institutional FOXO1 fusion results are acceptable). RMS types included under ERMS include those classified in the 1995 International Classification of Rhabdomyosarcoma (ICR) as ERMS (classic, spindle cell, and botryoid variants), which are reclassified in the 2020 World Health Organization (WHO) classification as ERMS (classic, dense and botryoid variants) and spindle cell/sclerosing RMS (encompassing the historical spindle cell ERMS variant and the newly recognized sclerosing RMS variant). Enrollment in APEC14B1 is required for all patients.
- •All patients will be evaluated for stage and clinical group. Note that clinical group designation assigned at the time of enrollment on study remains unchanged regardless of any second-look operation that may be performed.
- •Patients will be eligible for the very low-risk stratum (Regimen VA) if they have Stage 1, CG I disease.
- •Patients will be eligible for the low-risk stratum (Regimen VAC/VA) if they have Stage 1, CG II disease, Stage 2, CG I or II disease, or Stage 1, CG III (orbit only) disease.
- •Paratesticular Tumors: Staging ipsilateral retroperitoneal lymph node sampling (SIRLNS) is required for all patients >= 10 years of age with paratesticular tumors who do not have gross nodal involvement on imaging.
- •Extremity Tumors: Regional lymph node sampling is required for histologic evaluation in patients with extremity tumors.
- •Clinically or radiographically enlarged nodes must be sampled for histologic evaluation.
- •Patients must have a Lansky (for patients =< 16 years of age) or Karnofsky (for patients > 16 years of age) performance status score of >=
- •Patients who are unable to walk because of paralysis, but who are up in a wheelchair, will be considered ambulatory for the purpose of assessing performance score.
- •Peripheral absolute neutrophil count (ANC) >= 750/uL (within 7 days prior to enrollment).
- •Platelet count >= 75,000/uL (transfusion independent) (within 7 days prior to enrollment).
- •Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70 mL/min/1.73 m^2 or a serum creatinine (within 7 days prior to enrollment) based on age/gender as follows:
- •Age: 1 month to < 6 months; Maximum serum creatinine (mg/dL): 0.4 (male) : 0.4 (female)
- •Age: 6 months to < 1 year; Maximum serum creatinine (mg/dL): 0.5 (male) : 0.5 (female)
- •Age: 1 to < 2 years; Maximum serum creatinine (mg/dL): 0.6 (male) : 0.6 (female)
- •Age: 2 to < 6 years; Maximum serum creatinine (mg/dL): 0.8 (male) : 0.8 (female)
- •Age: 6 to < 10 years; Maximum serum creatinine (mg/dL): 1 (male) : 1 (female)
- •Age: 10 to < 13 years; Maximum serum creatinine (mg/dL): 1.2 (male) : 1.2 (female)
- •Age: 13 to < 16 years; Maximum serum creatinine (mg/dL): 1.5 (male) : 1.4 (female)
- •Age >= 16 years; Maximum serum creatinine (mg/dL): 1.7 (male) : 1.4 (female)
- •Total bilirubin =< 1.5 x upper limit of normal (ULN) for age (within 7 days prior to enrollment), and
- •If there is evidence of biliary obstruction by the tumor, then the total bilirubin must be < 3 x ULN for age.
- •Note: For the purpose of this study, the ULN for SGPT (ALT) has been set to the value of 45 U/L.
- •Serum glutamate pyruvate transaminase (SGPT) (alanine aminotransferase [ALT]) =< 135 U/L
- •If there is evidence of biliary obstruction by the tumor, then the total bilirubin must be < 3 x ULN for age
- •Note: For the purpose of this study, the ULN for SGPT (ALT) has been set to the value of 45 U/L
- •All patients and/or their parents or legal guardians must sign a written informed consent.
- •All institutional, Food and Drug Administration (FDA), and National Cancer Institute (NCI) requirements for human studies must be met.
排除标准
- •Patients who have received prior chemotherapy and/or radiation therapy for cancer prior to enrollment. Surgical resection alone of previous cancer(s) is permitted.
- •Patients who have received chemotherapy or radiation for non-malignant conditions (e.g., autoimmune diseases) are eligible. Patients must discontinue chemotherapy for non-malignant conditions prior to starting protocol therapy.
- •Vincristine is sensitive substrate of the CYP450 3A4 isozyme. Patients must not have received drugs that are moderate to strong CYP3A4 inhibitors and inducers within 7 days prior to study enrollment.
- •Patients unable to undergo radiation therapy, if necessary, as specified in the protocol.
- •Evidence of uncontrolled infection.
- •Female patients who are pregnant since fetal toxicities and teratogenic effects have been noted for several of the study drugs. A pregnancy test is required for female patients of childbearing potential.
- •Lactating females who plan to breastfeed their infants.
- •Sexually active patients of reproductive potential who have not agreed to use an effective contraceptive method for the duration of their study participation.
研究组 & 干预措施
Regimen M (positive mutation)
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 CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Bone Scan (Procedure)
Regimen VAC/VA (VL RMS)
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). Radiation therapy (if needed) will be administered at cycle 5.Patients undergo CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Positron Emission Tomography (Procedure)
Regimen M (positive mutation)
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 CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Biopsy Procedure (Procedure)
Regimen M (positive mutation)
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 CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Computed Tomography (Procedure)
Regimen M (positive mutation)
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 CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Cyclophosphamide (Drug)
Regimen M (positive mutation)
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 CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Dactinomycin (Biological)
Regimen M (positive mutation)
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 CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Magnetic Resonance Elastography (Procedure)
Regimen M (positive mutation)
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 CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Positron Emission Tomography (Procedure)
Regimen M (positive mutation)
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 CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Radiation Therapy (Radiation)
Regimen M (positive mutation)
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 CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Vincristine (Drug)
Regimen VA (VLR RMS)
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). Patients undergo CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Biopsy Procedure (Procedure)
Regimen VA (VLR RMS)
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). Patients undergo CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Bone Scan (Procedure)
Regimen VA (VLR RMS)
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). Patients undergo CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Dactinomycin (Biological)
Regimen VA (VLR RMS)
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). Patients undergo CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Magnetic Resonance Elastography (Procedure)
Regimen VA (VLR RMS)
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). Patients undergo CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Positron Emission Tomography (Procedure)
Regimen VA (VLR RMS)
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). Patients undergo CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Vincristine (Drug)
Regimen VAC/VA (VL RMS)
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). Radiation therapy (if needed) will be administered at cycle 5.Patients undergo CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Biopsy Procedure (Procedure)
Regimen VAC/VA (VL RMS)
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). Radiation therapy (if needed) will be administered at cycle 5.Patients undergo CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Bone Scan (Procedure)
Regimen VAC/VA (VL RMS)
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). Radiation therapy (if needed) will be administered at cycle 5.Patients undergo CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Computed Tomography (Procedure)
Regimen VAC/VA (VL RMS)
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). Radiation therapy (if needed) will be administered at cycle 5.Patients undergo CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Cyclophosphamide (Drug)
Regimen VAC/VA (VL RMS)
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). Radiation therapy (if needed) will be administered at cycle 5.Patients undergo CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Dactinomycin (Biological)
Regimen VAC/VA (VL RMS)
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). Radiation therapy (if needed) will be administered at cycle 5.Patients undergo CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Magnetic Resonance Elastography (Procedure)
Regimen VAC/VA (VL RMS)
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). Radiation therapy (if needed) will be administered at cycle 5.Patients undergo CT scan, MRI, bone scan, PET scan and tumor biopsy throughout the study.
干预措施: Vincristine (Drug)
结局指标
主要结局
Failure free survival (FFS) for very low risk patients
时间窗: From study enrollment to disease progression, recurrence, or death as a first event, assessed up to 3 years
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.
Failure free survival (FFS) for low risk patients
时间窗: From study enrollment to disease progression, recurrence, or death as a first event, assessed up to 3 years
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.
次要结局
- Overall survival (OS) for low risk patients(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(Up to 24 weeks)
- Overall survival (OS) for very low risk patients(From study entry to death of any cause, assessed up to 5 years)