Trial | NCT00053872  Report issue

Title

Radiation Therapy Plus Combination Chemotherapy in Treating Children With Medulloblastoma
A Prospective Randomised Controlled Trial Of Hyperfractionated Versus Conventionally Fractionated Radiotherapy In Standard Risk Medulloblastoma

  • Phase

    Phase 3

  • Study Type

    Interventional

  • Status

    Unknown status

  • Study Participants

    316
RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Giving radiation therapy in different ways with combination chemotherapy may kill any remaining tumor cells following surgery. It is not yet known which radiation therapy regimen combined with combination chemotherapy is more effective in treating medulloblastoma.

PURPOSE: Randomized phase III trial to compare different radiation therapy regimens plus combination chemotherapy in treating children who have undergone surgery for medulloblastoma.
OBJECTIVES:

Compare the event-free survival rate in pediatric patients with standard-risk medulloblastoma treated with conventional vs hyperfractionated radiotherapy and vincristine followed by maintenance with cisplatin, lomustine, and vincristine.
Compare the overall survival of patients treated with these regimens.
Compare the pattern of relapse, especially local relapse (tumor bed or posterior fossa outside tumor bed), in patients treated with these regimens.
Determine the toxicity of surgery and whether there are identifiable factors that correlate with toxicity in these patients.
Determine the impact of any surgical complications on commencement of adjuvant therapy and event-free survival of these patients.
Compare late sequelae, in terms of health status, endocrine deficiencies, and hearing loss, in patients treated with these regimens.

OUTLINE: This is a randomized, multicenter study. Patients are stratified according to country. Patients are randomized to 1 of 2 treatment arms.

Arm I: Within 28-40 days after surgical resection, patients undergo conventional fractionated radiotherapy once daily, 5 days a week, for 6-7 weeks. Patients also receive vincristine IV once weekly for 8 weeks.
Arm II: Beginning as in arm I, patients undergo hyperfractionated radiotherapy twice daily, 5 days a week, for 6-7 weeks. Patients also receive vincristine as in arm I.
Maintenance chemotherapy:Six weeks after completion of radiotherapy, all patients receive cisplatin IV over 6 hours and oral lomustine on day 1 and vincristine IV on days 1, 8, and 15. Treatment repeats every 6 weeks for 8 courses.

Patients are followed at least every 6 months for 3 years.

Peer Reviewed and Funded or Endorsed by Cancer Research UK

PROJECTED ACCRUAL: A total of 316 patients (158 per treatment arm) will be accrued for this study within 4 years.
Study Started
Feb 28
2003
Last Update
Jun 24
2014
Estimate

Drug cisplatin

Drug lomustine

Drug vincristine sulfate

Procedure adjuvant therapy

Radiation radiation therapy

Criteria 

DISEASE CHARACTERISTICS:

Histologically confirmed medulloblastoma, including the following variants:

Classic
Nodular/desmoplastic
Large cell
Melanotic
Medullomyoblastoma

Prior total or subtotal surgical removal of tumor within the past 28-40 days

No more than 1.5 cm^2 residual tumor by early postoperative MRI or CT scan
No brainstem or supratentorial primitive neuroectodermal tumor
No atypical teratoid rhabdoid tumor
No known predisposition to medulloblastoma (e.g., Gorlin's syndrome)
No CNS metastasis (supratentorial, arachnoid of the posterior fossa, or craniospinal axis) by MRI
No clinical evidence of metastasis outside the CNS
No tumor cells in lumbar cerebrospinal fluid by cytospin

PATIENT CHARACTERISTICS:

Age

3 to 21

Performance status

Not specified

Life expectancy

Not specified

Hematopoietic

Hematological function less than CTC grade 2

Hepatic

Liver function less than CTC grade 2

Renal

Renal function less than CTC grade 2

Other

Not pregnant
Fertile patients must use effective contraception
Able to receive radiotherapy twice daily
Vital functions within age-appropriate normal range
Audiological function less than CTC grade 2
No medical contraindication to radiotherapy or chemotherapy

PRIOR CONCURRENT THERAPY:

Biologic therapy

Not specified

Chemotherapy

Not specified

Endocrine therapy

Concurrent dexamethasone as an antiemetic allowed, provided all other therapies have failed

Radiotherapy

No concurrent cobalt irradiation

Surgery

See Disease Characteristics

Other

No prior treatment for brain tumor or any other malignancy
No Results Posted