Osteosarcoma1999-A Study Of Intensive Chemotherapy for Osteosarcoma

St. Jude Children's Research Hospital

Status and phase

Completed

Phase 2

Conditions

Osteosarcoma

Treatments

Procedure: Limb Sparing

Drug: Ifosfamide, Carboplatin, Doxorubicin

Study type

Interventional

Funder types

Other

Industry

NIH

Identifiers

NCT00145639

OS99

Details and patient eligibility

About

This trial (OS99) evaluates the use of ifosfamide, carboplatin, and doxorubicin in an up-front window before surgery for localized and resectable osteosarcoma. High-dose methotrexate, which may interfere with the dose-intensive delivery of other agents, is eliminated from the treatment of localized disease. The primary objective is to compare the response rate of pre-surgical chemotherapy comprised of ifosfamide, doxorubicin, and carboplatin to that obtained with ifosfamide and carboplatin in the St. Jude OS-91 trial for patients with non-metastatic resectable osteosarcoma. We hypothesize that the histologic response rate will be improved by the addition of one course of pre-operative chemotherapy on this trial compared to the previous OS-91 trial.

Full description

This study has multiple research objectives:

To compare the response rate of pre-surgical chemotherapy comprised of ifosfamide, doxorubicin, and carboplatin to that obtained with ifosfamide and carboplatin in the St. Jude OS-91 trial for patients with non-metastatic resectable osteosarcoma
To continue the evaluation of dynamic contrast-enhanced magnetic resonance imaging (DEMRI) in predicting tumor response and accurately assessing the degree of response (continued from OS-91).
To determine the feasibility of delivering outpatient-based chemotherapy for osteosarcoma using ifosfamide-doxorubicin-carboplatin.
To determine whether resection of the primary site may be satisfactorily performed with a 3 cm margin of normal bone (rather than 5 cm).
To study biologic and biochemical characteristics of the tumor cells that may be of prognostic significance
To study the patients' and parents' perspectives of the patients' quality of life during and after treatment.

Description of Treatment Plan:

This study employs the following treatment strategy: neoadjuvant chemotherapy followed by definitive surgery for local control and adjuvant chemotherapy after tumor resection.

Pre-operative chemotherapy phase (weeks 0-12): Three courses of ifosfamide/carboplatin given every 3 weeks followed by one 3-week course of doxorubicin.Disease evaluation is performed after 3 courses and after 4 courses of chemotherapy.

Weeks 0, 3, and 6 - Ifosfamide-Carboplatin Ifosfamide: 2.65 gm/m2 IV daily over 15-30 minutes x 3 (Days 1, 2, 3) with MESNA. Carboplatin: dose based on GFR and targeted to an AUC of 8 mg/mL/min, given IV over 1 hour (Day 1 only)

Week 9- Evaluation, followed by Doxorubicin Doxorubicin: 25 mg/m2 IV over 1 hour, daily x 3

Week 12 Evaluation followed by definitive Surgery Local control by amputation or limb-salvage procedure

Post-operative chemotherapy (Weeks 14-35) Ifosfamide, carboplatin, and doxorubicin in two-agent pairs for approximately 35 weeks.

Week 14 - Ifosfamide-Doxorubicin Ifosfamide: 2.65 gm/m2 IV daily over 15-30 minutes x 3 (Days 1, 2, 3) with MESNA, Doxorubicin: 25 mg/m2 IV over 1 hour, daily x 2 (Days 1 and 2)

Week 17 - Ifosfamide-Carboplatin Ifosfamide: 2.65 gm/m2 IV daily over 15-30 minutes x 3 (Days 1, 2, 3) with MESNA, Carboplatin: targeted to an AUC of 8 mg/mL/min given IV over 1 hour (Day 1 only)

Week 20 - Carboplatin-Doxorubicin Carboplatin: targeted to an AUC of 8 mg/mL/min given IV over 1 hour (Day 1 only), Doxorubicin: 25 mg/m2 IV over 1 hour, daily x 2 (Days 1 and 2)

Week 23 - Evaluation, followed by Ifosfamide:

Doxorubicin. Ifosfamide: 2.65 gm/m2 IV daily over 15-30 minutes x 3 (Days 1, 2, 3) with MESNA, Doxorubicin: 25 mg/m2 IV over 1 hour, daily x 2 (Days 1 and 2)

Week 26 - Ifosfamide-Carboplatin Ifosfamide: 2.65 gm/m2 IV daily over 15-30 minutes x 3 (Days 1, 2, 3) with MESNA, Carboplatin: targeted to an AUC of 8 mg/mL/min given IV over 1 hour (Day 1 only)

Week 29 - Carboplatin-Doxorubicin Carboplatin: targeted to an AUC of 8 mg/mL/min given IV over 1 hour (Day 1 only), Doxorubicin: 25 mg/m2 IV over 1 hour, daily x 2 (Days 1 and 2)

Week 32 - Evaluation, followed by Ifosfamide-Doxorubicin. Ifosfamide: 2.65 gm/m2 IV daily over 15-30 minutes x 3 (Days 1, 2, 3) with MESNA, Doxorubicin: 25 mg/m2 IV over 1 hour, daily x 2 (Days 1 and 2)

Week 35 - Carboplatin-Doxorubicin Carboplatin: targeted to an AUC of 8 mg/mL/min given IV over 1 hour (Day 1 only), Doxorubicin: 25 mg/m2 IV over 1 hour, daily x 2 (Days 1 and 2)

Enrollment

80 patients

Sex

All

Ages

Under 25 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

All subjects with histologically proven high-grade osteosarcoma,chondrosarcoma, MFH, fibrosarcoma or chondrosarcoma of bone, whose tumors are potentially resectable (either by limb sparing, en bloc resection, or amputation) and have no evidence of metastasis.
Adequate liver, renal and cardiac function.
Age: Younger than 25 years old

Exclusion criteria