Ewing sarcoma, pediatric - historical
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The purpose of this page is to provide references to regimens that are obsolete, outdated, or of historical interest only. As a general rule, this includes the inferior arm(s) of a randomized study, unless said regimens continue to be recommended by trustworthy sources such as the NCCN Guidelines. Is there a regimen missing from this list? See the main pediatric Ewing sarcoma page for current regimens.
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Historical Regimens
COG AEWS0031
Regimen A Induction
- Regimen A is a standard regimen consisting of 21 day cycles
Cycles 1 & 3 (VDC)
- Vincristine (Oncovin) 2 mg/m2 IV push once on day 1 (maximum dose of 2 mg)
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Doxorubicin (Adriamycin) 75 mg/m2 IV infusion over 48 hours once on day 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Cyclophosphamide (Cytoxan) 1200 mg/m2 IV over 1 hour on Days 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 720 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Cyclophosphamide (Cytoxan) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Cyclophosphamide (Cytoxan) and remain until at least 8 hours after the end of the Cyclophosphamide (Cytoxan) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 2
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
21 day cycle
Cycles 2 & 4 (IE)
- Ifosfamide (Ifex) 1800 mg/m2 IV infusion over 1 hour once on day 1 to 5
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Etoposide (Vepesid) 100 mg/m2 IV infusion over 1 to 2 hours once on days 1 to 5
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 1080 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Ifosfamide (Ifex) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Ifosfamide (Ifex) and remain until at least 8 hours after the end of the Ifosfamide (Ifex) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 6
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
21 day cycle
Regimen A Continuation
- At week 13 patients either underwent surgery, received radiation, or both
- Radiation coincided with cycle 5
Cycle 5 & 9 (VDC)
Cycle 5 begins on week 15 in patients receiving surgery and on week 13 in Regimen A2
- Vincristine (Oncovin) 2 mg/m2 IV push once on day 1 (maximum dose of 2 mg)
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Doxorubicin (Adriamycin) 75 mg/m2 IV infusion over 48 hours once on day 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Cyclophosphamide (Cytoxan) 1200 mg/m2 IV over 1 hour on Days 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 720 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Cyclophosphamide (Cytoxan) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Cyclophosphamide (Cytoxan) and remain until at least 8 hours after the end of the Cyclophosphamide (Cytoxan) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 2
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
21 day cycle
Cycle 6, 8, 10, 12, & 14 (IE)
- Ifosfamide (Ifex) 1800 mg/m2 IV infusion over 1 hour once on day 1 to 5
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Etoposide (Vepesid) 100 mg/m2 IV infusion over 1 to 2 hours once on days 1 to 5
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 1080 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Ifosfamide (Ifex) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Ifosfamide (Ifex) and remain until at least 8 hours after the end of the Ifosfamide (Ifex) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 6
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
21 day cycle
Cycle 7 (VDC) Regimen A1 (Surgery Only)
- Vincristine (Oncovin) 2 mg/m2 IV push once on day 1 (maximum dose of 2 mg)
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Doxorubicin (Adriamycin) 75 mg/m2 IV infusion over 48 hours once on day 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Cyclophosphamide (Cytoxan) 1200 mg/m2 IV over 1 hour on Days 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 720 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Cyclophosphamide (Cytoxan) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Cyclophosphamide (Cytoxan) and remain until at least 8 hours after the end of the Cyclophosphamide (Cytoxan) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 2
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
21 day cycle
Cycle 7 (VC) Regimen A2 & A3 (Radiation w/ or w/o Surgery)
- Vincristine (Oncovin) 2 mg/m2 IV push once on day 1 (maximum dose of 2 mg)
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Cyclophosphamide (Cytoxan) 1200 mg/m2 IV over 1 hour on Days 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 720 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Cyclophosphamide (Cytoxan) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Cyclophosphamide (Cytoxan) and remain until at least 8 hours after the end of the Cyclophosphamide (Cytoxan) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 2
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
21 day cycle
Cycle 11 (VC) Regimen A1 (Surgery Only)
- Vincristine (Oncovin) 2 mg/m2 IV push once on day 1 (maximum dose of 2 mg)
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Cyclophosphamide (Cytoxan) 1200 mg/m2 IV over 1 hour on Days 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 720 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Cyclophosphamide (Cytoxan) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Cyclophosphamide (Cytoxan) and remain until at least 8 hours after the end of the Cyclophosphamide (Cytoxan) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 2
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
21 day cycle
Cycle 11 (VDC) Regimen A2 & A3 (Radiation w/ or w/o Surgery)
- Vincristine (Oncovin) 2 mg/m2 IV push once on day 1 (maximum dose of 2 mg)
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Doxorubicin (Adriamycin) 75 mg/m2 IV infusion over 48 hours once on day 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Cyclophosphamide (Cytoxan) 1200 mg/m2 IV over 1 hour on Days 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 720 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Cyclophosphamide (Cytoxan) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Cyclophosphamide (Cytoxan) and remain until at least 8 hours after the end of the Cyclophosphamide (Cytoxan) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 2
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
21 day cycle
Cycle 13 (VC)
- Vincristine (Oncovin) 2 mg/m2 IV push once on day 1 (maximum dose of 2 mg)
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Cyclophosphamide (Cytoxan) 1200 mg/m2 IV over 1 hour on Days 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 720 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Cyclophosphamide (Cytoxan) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Cyclophosphamide (Cytoxan) and remain until at least 8 hours after the end of the Cyclophosphamide (Cytoxan) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 2
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
21 day cycle
Regimen B Induction
- Regimen B is a consolidated regimen consisting of 14 day cycles
Cycles 1, 3, & 5 (VDC)
- Vincristine (Oncovin) 2 mg/m2 IV push once on day 1 (maximum dose of 2 mg)
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Doxorubicin (Adriamycin) 75 mg/m2 IV infusion over 48 hours once on day 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Cyclophosphamide (Cytoxan) 1200 mg/m2 IV over 1 hour on Days 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 720 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Cyclophosphamide (Cytoxan) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Cyclophosphamide (Cytoxan) and remain until at least 8 hours after the end of the Cyclophosphamide (Cytoxan) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 2
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
14 day cycle
Cycle 2, 4, & 6 (IE)
- Ifosfamide (Ifex) 1800 mg/m2 IV infusion over 1 hour once on day 1 to 5
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Etoposide (Vepesid) 100 mg/m2 IV infusion over 1 to 2 hours once on days 1 to 5
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 1080 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Ifosfamide (Ifex) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Ifosfamide (Ifex) and remain until at least 8 hours after the end of the Ifosfamide (Ifex) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 6
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
14 day cycle
Regimen B Continuation
- At week 13 patients either underwent surgery, received radiation, or both
- Radiation coincided with cycle 7
Cycle 7 (VDC)
Cycle 7 begins on week 15 in patients receiving surgery and on week 13 in Regimen B2
- Vincristine (Oncovin) 2 mg/m2 IV push once on day 1 (maximum dose of 2 mg)
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Doxorubicin (Adriamycin) 75 mg/m2 IV infusion over 48 hours once on day 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Cyclophosphamide (Cytoxan) 1200 mg/m2 IV over 1 hour on Days 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 720 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Cyclophosphamide (Cytoxan) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Cyclophosphamide (Cytoxan) and remain until at least 8 hours after the end of the Cyclophosphamide (Cytoxan) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 2
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
14 day cycle
Cycle 8, 10, 12, & 14 (IE)
- Ifosfamide (Ifex) 1800 mg/m2 IV infusion over 1 hour once on day 1 to 5
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Etoposide (Vepesid) 100 mg/m2 IV infusion over 1 to 2 hours once on days 1 to 5
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 1080 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Ifosfamide (Ifex) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Ifosfamide (Ifex) and remain until at least 8 hours after the end of the Ifosfamide (Ifex) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 6
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
14 day cycle
Cycle 9 (VDC) Regimen B1 (Surgery Only)
- Vincristine (Oncovin) 2 mg/m2 IV push once on day 1 (maximum dose of 2 mg)
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Doxorubicin (Adriamycin) 75 mg/m2 IV infusion over 48 hours once on day 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Cyclophosphamide (Cytoxan) 1200 mg/m2 IV over 1 hour on Days 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 720 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Cyclophosphamide (Cytoxan) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Cyclophosphamide (Cytoxan) and remain until at least 8 hours after the end of the Cyclophosphamide (Cytoxan) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 2
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
14 day cycle
Cycle 9 (VC) Regimen B2 & B3 (Radiation w/ or w/o Surgery)
- Vincristine (Oncovin) 2 mg/m2 IV push once on day 1 (maximum dose of 2 mg)
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Cyclophosphamide (Cytoxan) 1200 mg/m2 IV over 1 hour on Days 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 720 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Cyclophosphamide (Cytoxan) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Cyclophosphamide (Cytoxan) and remain until at least 8 hours after the end of the Cyclophosphamide (Cytoxan) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 2
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
14 day cycle
Cycle 11 (VC)
- Vincristine (Oncovin) 2 mg/m2 IV push once on day 1 (maximum dose of 2 mg)
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Cyclophosphamide (Cytoxan) 1200 mg/m2 IV over 1 hour on Days 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 720 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Cyclophosphamide (Cytoxan) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Cyclophosphamide (Cytoxan) and remain until at least 8 hours after the end of the Cyclophosphamide (Cytoxan) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 2
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
14 day cycle
Cycle 13 (VC) Regimen B1 (Surgery Only)
- Vincristine (Oncovin) 2 mg/m2 IV push once on day 1 (maximum dose of 2 mg)
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Cyclophosphamide (Cytoxan) 1200 mg/m2 IV over 1 hour on Days 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 720 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Cyclophosphamide (Cytoxan) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Cyclophosphamide (Cytoxan) and remain until at least 8 hours after the end of the Cyclophosphamide (Cytoxan) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 2
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
14 day cycle
Cycle 13 (VDC) Regimen B2 & B3 (Radiation w/ or w/o Surgery)
- Vincristine (Oncovin) 2 mg/m2 IV push once on day 1 (maximum dose of 2 mg)
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Doxorubicin (Adriamycin) 75 mg/m2 IV infusion over 48 hours once on day 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Cyclophosphamide (Cytoxan) 1200 mg/m2 IV over 1 hour on Days 1
- Treat with 50% doses calculated on a m2 basis for children < 1 year, then consider increasing to 75% and then to 100 % of calculated dose if tolerated
- Mesna (Mesnex) 720 mg/m2 IV continuous infusion on day 1
- NOTE: Protocol states that Mesna (Mesnex) should be dosed as AT LEAST 60% of Cyclophosphamide (Cytoxan) m2
- Mesna (Mesnex) continuous infusion should be started at the same time as the Cyclophosphamide (Cytoxan) and remain until at least 8 hours after the end of the Cyclophosphamide (Cytoxan) infusion
- Filgrastim (Neupogen) 5 mcg/kg SC for at least 7 days, or until ANC ≥ 750/μl, beginning on day 2
- ANC ≥ 750/μl on or before day 7 of the cycle is not sufficient for discontinuing G-CSF
14 day cycle
References
- COG AEWS0031: Womer RB, West DC, Krailo MD, Dickman PS, Pawel BR, Grier HE, Marcus K, Sailer S, Healey JH, Dormans JP, and Weiss AR. Randomized Controlled Trial of Interval-Compressed Chemotherapy for the Treatment of Localized Ewing Sarcoma: A Report From the Children's Oncology Group. J Clin Oncol. 2012 Nov 20;30(33):4148-4154. link to original article link to PMC article PubMed NCT00006734