Efficacy of Dose Intensification in Patients With Non-metastatic Ewing Sarcoma

Phase 3CompletedNCT02063022

Italian Sarcoma Group278 enrolled

Overview

Controlled, randomized phase III study, with the intent of optimizing the treatment of not metastatic Ewing Sarcoma. The patients will be randomized into 2 arms: standard treatment vs intensive treatment. Both arms will receive an induction treatment followed by surgery (wherever is possible) and/or radiotherapy. The maintenance treatment will be different on the basis of the response to the induction treatment (good or poor)

Eligible patients with non metastatic Ewing's Sarcoma will be randomized into 2 different arms: standard treatment arm A (based on the ISG/SSG III protocol) or into the experimental arm B(chemotherapy with dose intensification and shorter length of treatment). Both arm will receive an induction treatment with higher dose intensity of doxorubicin and ifosfamide in Arm B. After the induction treatment all the patient will undergo to local treatment (surgery and/or radiotherapy)that will be followed by a maintenance therapy. The maintenance therapy will be different for both arms and, within each arm, on the basis of the response (histologically evaluated) of the pre-local treatment therapy. Maintenance for Arm A: Poor responders will undergo to stem cells apheresis and their reinfusion after treatment with high doses of Busulfan and Melphalan 25 weeks. Good responders will receive a 6 drugs maintenance treatment for 37 weeks (as per standard ISG/SSG III protocol) Maintenance for Arm B: Poor responders will undergo to stem cells apheresis and their reinfusion after an intensified treatment with high doses of Busulfan and Melphalan (25 weeks). Good responders will receive a maintenance treatment for 25 weeks The primary aim of the study is to assess the Event Free Survival (EFS) that is expected to be similar in both arms The secondary objectives are: To assess if the induction treatment in Arm B is able to increase the percentage of good responders compared to those who receive standard treatment. To assess the toxicity and the Quality of Life related to the chemotherapy treatment

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Enrollment

278

Conditions

Ewing's Sarcoma

Interventions

Standard treatment (as per protocol ISG SSG III)DRUG

Induction treatment with: 4 cycle of Vincristine (9mg/,2), Dactinomycin (6mg/m2), Doxorubicin (160mg/m2), Cyclophosphamide (2.4g/m2), Ifosfamide (18g/M2) and Etoposide (450mg/m2) given every 3 weeks Maintenance treatment for poor responder (25 weeks): Vincristine (12mg/m2), Dactinomycin (1.5mg/m2), Doxorubicin (320mg/m2), Ifosfamide (27g/m2), Cyclophosphamide (8.8g/m2), Etoposide (1.5g/m2) and peripheral Cells Steam Transplant after Busulfan and Melphalan treatment Maintenance treatment (37 week) for good responder: Vincristine (18mg/m2), Dactinomycin (6mg/m2), Doxorubicin (400mg/m2), Ifosfamide (72g/m2), Cyclosphosphamide(6g/m2), Etoposide (1.8 g/m2)

Intensified chemotherapyDRUG

* Induction treatment with: 4 cycle of Vincristine (10.5 mg/m2), Doxorubicin (320 mg/m2) and Ifosfamide (36 mg/m2) given every 3 weeks * Maintenance treatment for poor responder (25 weeks): Vincristine (12mg/m2), Doxorubicin (400mg/m2), Ifosfamide (63g/m2), Cyclophosphamide (4g/m2), Etoposide (1.5g/m2) and Cells Steam Transplant after Busulfan and Melphalan treatment * Maintenance treatment (25 week) for good responder: Vincristine (12mg/m2), Doxorubicin (400mg/m2), Ifosfamide (72g/m2), Etoposide (1.8g/m2)

Eligibility

Sex: ALLMax age: 40 Years

Medical Language ↔ Plain English

Inclusion Criteria * Ewing Sarcoma or PNET diagnosis centrally confirmed * Age ≤ 40 years * Absence of evident metastasis or lung met \< 0.5 cm Presence of skip metastasis in the bone compartment of the primary tumor is to be considered as local disease and not metastatic. * Adeguate bone marrow, hepatic and renal function * Left Ventricular Ejection Fraction \> 50% * No primary Ewing Sarcoma treatments (both chemotherapy and/or radiotherapy) * Voluntarily signed an informed consent form * Radiological and histological documentation available for central review. Exclusion Criteria * Presence of lung or extra-pulmonary lesions * Bone Marrow involvement * In case of chest disease: presence of plural effusion * Elapsed time between histological diagnosis and chemotherapy start, more than 4 weeks * Any medical contraindication to the use of the study drugs * Any psychological or social conditions that can compromise the protocol compliance and/or follow-up * Previous malignancies (excluded in situ cervix carcinoma)

Locations (14)

Centro di Riferimento Oncologico - Unit of Medical Oncology

Aviano, Pordenone, Italy

I.R.C.C. - Unit of Medical Oncology

Candiolo, Torino, Italy

IRCCS materno infantile Burlo Garofolo

Trieste, T, Italy

Outcomes

Primary Outcomes

Event Free Survival (EFS)

The EFS (event defined as Progressive Disease , onset of local relapse and/or metastasis, death due to chemotherapy toxicity or for other causes) will be calculated from the first treatment day up to the event onset or to last follow-up

Time frame: 5 years

Secondary Outcomes

Disease Free Survival (DFS)

The DFS will be calculated from the day that the patient will be free from disease (surgery date and/or radiotherapy completion) up to the date of progression disease or last follow-up

Time frame: expected average 3 years

Metastasis Free Survival

The Metastasis free Survival will be evaluated from the time of disease free (surgery performed and/or radiotherapy completed) to the onset of distance metastasis or last follow-up

Time frame: expected average 2 years

Overall Survival (OS)

The OS will be evaluated for the start treatment day to the day of death (for any causes)

Time frame: expected average 5 years

Data from ClinicalTrials.gov

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