This protocol will study treatment for Ewing sarcoma family of tumors (ESFT) and desmoplastic small round cell tumor (DSRCT). Participants with ESFT will be divided into two treatment groups, A or B, based on tumor characteristics. Group A (standard risk) participants have tumor that is not in the pelvis, has not spread to other parts of the body, and are less than 14 years of age. Because previous clinical trials have shown that standard treatment is very effective for children whose tumors have these characteristics, these participants will receive standard treatment. Group B (high risk) participants are 14 years of age or older or have tumor in the pelvis, or the tumor has spread to other parts of the body. Participants with DSRCT in the abdomen and/or pelvis or with tumor that cannot be removed by surgery alone or has spread to other parts of the body will be included in Group B. Participants in this group are considered high risk because there is a greater chance of tumor recurring following standard treatments currently in use. All participants will be followed and evaluated for 10 years following completion of therapy.
PRIMARY OBJECTIVE: * To estimate the response rate to two initial courses of temsirolimus, temozolomide and irinotecan in previously untreated patients with high-risk Ewing sarcoma family of tumors (ESFT). SECONDARY OBJECTIVES: * To estimate the overall survival and progression-free survival in participants with ESFT treated with these approaches. * To estimate the time to progression in participants with ESFT treated in Group B (high risk). * To estimate the cumulative incidence of local failure following local control paradigm in this trial. Group A: Participants will receive interval compressed (every 2 weeks) alternating courses of chemotherapy with vincristine, doxorubicin, and cyclophosphamide (VDC) and with ifosfamide and etoposide (IE). Doxorubicin will be omitted following a total cumulative dose of 375 mg/m\^2. Local control measures (surgery and/or radiation therapy) will be instituted after 6 courses of chemotherapy. Total duration of treatment is approximately 29 weeks. Group B: Participants eligible for the window therapy will receive two courses (21 days duration each) of mTOR inhibitor, temsirolimus, in combination with temozolomide and irinotecan. Irinotecan (20 mg/m\^2) will be administered IV on a protracted schedule of daily for 5 days, 2 days off, repeated daily x 5 \[(qdx5)x2\], temozolomide (100 mg/m\^2) PO daily x 5 days and temsirolimus 35 mg/m\^2 IV weekly on day 1 and 8. Following window treatment (weeks 1 - 6), participants will proceed to induction chemotherapy (weeks 7 - 33) consisting of interval compressed (every 2 weeks) alternating courses of chemotherapy with vincristine, doxorubicin, and cyclophosphamide (VDC) with ifosfamide and etoposide (IE). Doxorubicin will be omitted following a total cumulative dose of 375 mg/m\^2. Local control measures (surgery and/or radiation therapy) will be instituted after 6 courses of induction chemotherapy (week 19). Participants whose tumors respond to window therapy will receive temsirolimus, temozolomide and irinotecan at weeks 29 and 31 in place of ifosfamide and etoposide. Following induction therapy, participants will receive six 21-day courses of maintenance therapy consisting of bevacizumab IV on day 1 and daily oral sorafenib and low-dose cyclophosphamide day 1 through day 21.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
24
Dosage and route of administration: Infants \< 12 months of age: 0.05 mg/kg IV day 1; participants ≥ 12 months of age: 1.5 mg/m\^2 IV day 1 (max. dose 2 mg).
Dosage and route of administration: Infants \< 1 year 2.5 mg/kg continuous infusion (CI) over 48 hours, days 1-2; participants \> 1 year of age 75 mg/m\^2 CI over 48 hours, days 1-2.
Dosage and route of administration: The dose and route are different in neo-adjuvant/adjuvant chemotherapy and maintenance therapy. Please see the Detailed Description for further information.
Dosage and route of administration: Infants \< 1 year of age 60 mg/kg/day IV over 60 minutes days 1-5; participants \> 12 months of age 1800 mg/m\^2 IV over 60 minutes x 5 days, days 1-5.
Dosage and route of administration: Infants \< 1 year of age 3.3 mg/kg/day IV over 60 minutes days 1-5; children \> 1 year 100 mg/m\^2 daily IV over 60 minutes days 1-5.
Dosage and route of administration: Temozolomide 100 mg/m\^2 PO once daily, days 1-5.
Dosage and route of administration: Temsirolimus 35 mg/m\^2 IV once day 1 and day 8.
Dosage and route of administration: Bevacizumab 15 mg/kg IV on day 1 every 3 weeks.
Dosage and route of administration: 90 mg/m\^2/dose PO BID
If participant meets the criteria, they will have surgical resection of their tumor.
If the participant meets the criteria, participants will receive radiation therapy. Chemotherapy will continue during radiation.
St. Jude Children's Research Hospital
Memphis, Tennessee, United States
Response to Window Therapy (2 Courses) for Group B (High-risk) - ESFT Participants
Response rate will be defined as the proportion of patients who achieved complete response or partial response (CR+PR) using the World Health Organization (WHO) criteria evaluated after two initial courses of temsirolimus, temozolomide and irinotecan in previously untreated patients with high risk Ewing Sarcoma Family of Tumor (ESFT). Participants who are treated in Group B with Desmoplastic Small Round Cell Tumor (DSRCT) or those who do not receive window therapy will not be included in this analysis.
Time frame: at 6 weeks after start of therapy (after 2 initial courses)
Overall Survival
Overall survival (OS) is defined as the time interval from the date on study to the date of death or the date of last follow-up. OS will be estimated using the method of Kaplan-Meier for group A and B participants, respectively.
Time frame: Maximum of 11 years after the start of therapy
Progression-free Survival
Progression free survival (PFS) is defined as the time interval from the date on study to the date of disease progression or death or the date if last follow-up. PFS will be estimated using the method of Kaplan-Meier for group A and B participants, respectively.
Time frame: Maximum of 11 years after the start of therapy
Time to Progression
Median time to progression of group B patients will be estimated from the Kaplan-Meier curve.
Time frame: Maximum of 11 years after the start of therapy
Local Failure Rate
Loco-regional failure is defined as the time interval from date of start of local therapy to date of loco-regional failure. Distant failure or death prior to loco-regional failure will be considered competing events in the analyses. The cumulative incidence of loco-regional failure will be estimated using methods described in Kalbfleisch and Prentice.
Time frame: Maximum of 11 years after the start of therapy
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.