NCT02265770

An International Clinical Program for the Diagnosis and Treatment of Children With Ependymoma

An International Clinical Program for the Diagnosis and Treatment of Children, Adolescents and Young Adults With Ependymoma

• Status: Recruiting
• Phase: Phase 2 / Phase 3
• Study type: Interventional
• Enrollment: 536 (estimated)
• Sponsor: Centre Leon Berard · Academic / Other
• Sex: All
• Age: 22 Years
• Healthy volunteers: Not accepted

Summary

The overall aim of this project is to improve the outcome of patients diagnosed with ependymoma by improving and harmonising the staging and the standard of care of this patient population and to improve the investigators understanding of the underlying biology thereby informing future treatment. The program will evaluate new strategies for diagnosis (centralized reviews of pathology and imaging) and new therapeutic strategies in order to develop treatment recommendations. Patients will be stratified into different treatment subgroups according to their age, the tumour location and the outcome of the initial surgery. Each subgroup will be studied in a specific randomised study to evaluate the proposed therapeutic strategies. Stratum 1: The aim of the stratum 1 is to evaluate the clinical impact of 16-week chemotherapy regimen with VEC-CDDP following surgical resection and conformal radiotherapy in terms of progression free survival in patients who are \> 12 months and \< 22 years at diagnosis, with completely removed intra cranial Ependymoma. Stratum 2: This stratum is designed as a phase II trial for patients who are \> 12 months and \< 22 years at diagnosis, with residual disease to investigate the possible activity of HD-MTX by giving to all patients the benefit of VEC chemotherapy whilst randomising half of patients to receive additional HD-MTX. Patients will receive conformal radiotherapy (cRT). For patients who remain with a residual inoperable disease after induction chemotherapy and cRT, an 8 Gy boost of radiotherapy to the residual tumour will be delivered immediately after the end of the cRT. Stratum 3 This stratum is designed as a phase II trial to evaluate the benefit of postoperative dose intense chemotherapy administered alone or in combination with valproate in children \<12 months of age or those not eligible to receive radiotherapy .

Detailed description

The Ependymoma Program is a comprehensive program to improve the accuracy of the primary diagnosis of ependymoma and explore different therapeutic strategies in children, adolescents and young adults, accordingly. This program is opened to all patients diagnosed with ependymoma below the age of 22 years. It will include a centralised review of pre and post-operative imaging to assess the completeness of the resection. It will also include a central review of pathology to confirm the histological diagnosis. The biological markers 1q and 6q gain, Tenascin C status, NELL2 and LAMA2, RELA-fusion and molecular subgroup by methylation array will be prospectively assessed for prospective evaluation of disease subgroups. Further biological evaluations will be coordinated within the linked BIOMECA study. After surgery and central review of imaging and pathology, patients will be offered the opportunity to undergo second look surgery, if possible. Patients will be enrolled in one of 3 different strata according to the outcome of the initial surgical resection (residual disease vs no residual disease), their age or eligibility / suitability to receive radiotherapy. These 3 different strata correspond to 3 therapeutic strategies according to the patient status. 1. Stratum 1 is designed as a randomised phase III study for patients who have had a complete resection, with no measurable residual disease (as confirmed by centrally reviewed MRI) and are \> 12 months and \< 22 years at diagnosis. Those patients will be randomised to receive conformal radiotherapy followed by either 16 weeks of chemotherapy with VEC-CDDP, or observation. 2. Stratum 2 is designed as a randomised phase II study for patients who have inoperable measurable residual disease and who are \> 12 months and \< 22 years at diagnosis. Those patients will be randomised to two different treatment schedules of chemotherapy either with VEC or VEC+ high dose methotrexate (VEC +HD-MTX). After completion of the frontline chemotherapy, patients will be assessed for response (MRI) and will receive second look surgery when feasible. For those patients who remain unresectable with residual disease despite frontline chemotherapy and for whom second line surgery is not feasible, there will be a study of the safety of a radiotherapy boost of 8 Gy that will be administered to the residual tumour immediately after the completion of the conformal radiotherapy. Patients without evidence of residual disease after the chemotherapy and/or a second look surgery are not eligible for radiotherapy boost. All patients who have not shown progression under chemotherapy will receive, as maintenance therapy, a 16 week course of VEC -CDDP following completion of radiotherapy. 3. Stratum 3 is designed as a randomised phase II chemotherapy study in children \<12 months of age or those not eligible to receive radiotherapy. These patients will be randomised to receive a dose dense chemotherapy alternating myelosuppressive and relatively non-myelosuppressive drugs at 2 weekly intervals, with or without, the addition of the histone deacetylase inhibitor, valproate. Registry: Patients that do not fulfil the inclusion criteria of one of the interventional strata will be enrolled and followed up via an observational study which will be analysed descriptively.

Conditions

• Childhood Ependymoma

Interventions

Type	Name	Description
DRUG	16 weeks of VEC + CDDP	Days 1-36-71-106: Vincristine: 1.5 mg/m² (maximal dose 2 mg) i.v.; Days 1-3-36-38-71-73-106-108: Etoposide: 100 mg/m² infused over 60 minutes; Days 1-36-71-106: Cyclophosphamide: 3000 mg/m² in 3 divided infusions (1000 mg/m²/infusion) infused over 60 minutes; Days 22-57-92: Cisplatin: 80 mg/m² over 4 hours + Vincristine:1.5 mg/m² (maximal dose 2 mg) i.v.
DRUG	VEC + HD-MTX	Days 1-22-43: Vincristine: 1.5 mg/m² (maximal dose 2 mg) i.v.; Days 1-3-22-24-43-45: Etoposide: 100 mg/m² infused over 60 minutes; Days 1-22-43: Cyclophosphamide: 3000 mg/m² in 3 divided infusions (1000 mg/m²/infusion) infused over 60 minutes; Days 15-36-57: Administer methotrexate at 8000 mg/m² as a 24 hour IV infusion on days 15-36-57. 10% of the dose should be given over the first hour and 90% over the remaining 23 hours. The infusion must finish at 24 hours even if it has not been completed.
DRUG	Chemotherapy + Valproate	Days 1-57-113-169-225-281-337: Vincristine and Carboplatin; Days 15-71-127-183-239-295-351: Vincristine and Methotrexate; Days 29-85-141-197-253-309-365: Vincristine and Cyclophosphamide; Days 43-44-99-100-154-155-211-212-267-268-323-324-379-380: Cisplatin 2-day continuous infusion. Valproate: initial dose 30 mg/kg/day for two weeks in 2 divided doses (BID 15 mg/kg). Increasing weekly up to 40 - 50 - 60 mg/kg/day in 2 divided doses.
RADIATION	Conformal radiotherapy	Conformal radiotherapy: 59.4Gy (children \<18 months or with risk factors: 54Gy). Daily fraction 1.8 Gy, 5 fractions / week.
DRUG	VEC	D1: Vincristine: 1.5 mg/m² (maximal dose 2 mg) i.v.; D1-D3: Etoposide: 100 mg/m² infused over 60 minutes; D1: Cyclophosphamide: 3000 mg/m² in 3 divided infusions (1000 mg/m²/infusion) infused over 60 minutes; D22: Vincristine: 1.5 mg/m² (maximal dose 2 mg) i.v.; D22-D24: Etoposide: 100 mg/m² infused over 60 minutes; D22: Cyclophosphamide: 3000 mg/m² in 3 divided infusions (1000 mg/m²/infusion) infused over 60 minutes; D43: Vincristine: 1.5 mg/m² (maximal dose 2 mg) i.v.; D43-D45: Etoposide: 100 mg/m² infused over 60 minutes; D43: Cyclophosphamide: 3000 mg/m² in 3 divided infusions (1000 mg/m²/infusion) infused over 60 minutes
DRUG	Chemotherapy	Days 1-57-113-169-225-281-337: Vincristine and Carboplatin; Days 15-71-127-183-239-295-351: Vincristine and Methotrexate; Days 29-85-141-197-253-309-365: Vincristine and Cyclophosphamide; Days 43-44-99-100-154-155-211-212-267-268-323-324-379-380: Cisplatin 2-day continuous infusion.
RADIATION	conformal radiotherapy +/- boost	Conformal radiotherapy: 59.4Gy (children \<18 months or with risk factors: 54Gy). Daily fraction 1.8 Gy, 5 fractions / week. In case of persistent residue : Boost of radiation 8 Gy in 2 equivalent fractions

Timeline

• Start date: 2015-06-02
• Primary completion: 2028-06-01
• Completion: 2031-08-01
• First posted: 2014-10-16
• Last updated: 2024-04-26

Locations

40 sites across 15 countries: Austria, Belgium, Czechia, Denmark, France, Germany, Ireland, Italy, Netherlands, Norway, Slovenia, Spain, Sweden, Switzerland, United Kingdom