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Trial ยท NCT00336024

Combination Chemotherapy Followed By Peripheral Stem Cell Transplant in Treating Young Patients With Newly Diagnosed Supratentorial Primitive Neuroectodermal Tumors or High-Risk Medulloblastoma

NCT00336024, Phase 3, Completed, Children's Oncology Group; results first posted 2018-10-24

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Combination Chemotherapy Followed By Peripheral Stem Cell Transplant in Treating Young Patients With Newly Diagnosed Supratentorial Primitive Neuroectodermal Tumors or High-Risk Medulloblastoma. Trials, record NCT00336024. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00336024

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Combination Chemotherapy Followed By Peripheral Stem Cell Transplant in Treating Young Patients With Newly Diagnosed Supratentorial Primitive Neuroectodermal Tumors or High-Risk Medulloblastoma
NCT number
NCT00336024
Status
Completed
Phases
Phase 3
Enrollment
91 participants, actual
Lead sponsor
Children's Oncology Group
Conditions
Anaplastic Medulloblastoma, Medulloblastoma, Supratentorial Embryonal Tumor, Not Otherwise Specified, Untreated Childhood Supratentorial Primitive Neuroectodermal Tumor
Interventions
Autologous Hematopoietic Stem Cell Transplantation, Carboplatin, Cisplatin, Cyclophosphamide, Etoposide, Filgrastim, Laboratory Biomarker Analysis, Leucovorin Calcium, Methotrexate, Quality-of-Life Assessment, Thiotepa, Vincristine Sulfate
First posted
2006-06-12
Last updated
2026-01-23
Results first posted
2018-10-24

Source ClinicalTrials.gov

Registered outcomes15

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryNumber of Patients Who Have Either a Complete Response (CR) Rate or No Complete Response RateAt the end of consolidation treatment
At the end of consolidation, the number of evaluable patients treated with intensive chemotherapy with methotrexate who achieved CR or not will be compared to those who achieved CR or not after treated with the same intensive chemotherapy without methotrexate. The CR rates between these two groups will be compared at a significance level of 0.1 using one-sided Chi-square test. Complete Response (CR) requires: CR for target lesions: disappearance of all target lesions, CR for non-target lesions: disappearance of all non-target lesions and no new lesions. No CR is any response not fitting the definition of CR.
SecondaryNumber of Participants With Molecular Sub-types of MB, CNS-PNETs/EBTs Represented in the ACNS0334 CohortAt baselineThe number of patients will be reported for this analysis by Molecular Sub-types of MB, CNS-PNETs/EBTs
SecondaryPercentage of Participants With Event Free Survival (EFS)Baseline to up to 5 years
EFS was defined as time from enrollment to the occurrence of first event (disease progression/relapse, secondary malignancy, death from any cause) or date of last contact for patients who are event-free. The percentage of participants with EFS and 80% confidence interval were provided. The difference in incidence for the two treatment regimens were compared using a one-sided log-rank test with a significance level of 0.1.
SecondaryPatterns of FailureBaseline to up to 5 years
The patterns of failure for relapse/disease progression will be provided for patients treated with/without methotrexate drug in three categories, namely local, distant, and both local and distant. The number of patients with each type of failure will be listed per arm. The two groups will be compared to determine if the pattern of failure distribution is different between the two arms using Fisher exact test.
SecondaryPercentage of Participants With Any Acute Adverse EventsBeginning of treatment to the end of consolidation
Event is defined as the first occurrence of any acute toxicity. Estimates will be obtained using life-table methods. Patients who have progression or recurrence of disease will be censored in this analysis. Difference in incidence for the two treatment regimens will be compared using log-rank test.
SecondaryNumber of Participants With Acute Hearing Loss and No Acute Hearing LossBeginning of treatment to the end of consolidation
Per protocol, hearing was assessed pretreatment and at regular specified intervals during treatment and off therapy, using DPOAE, audiogram or Brainstem Evoked Auditory. Per CTCAE V4.0 grade 3 Hearing impaired is defined as follows; Pediatric (on a 1,2,3,4, 6 and 8 kHz audiogram): hearing loss sufficient to indicate therapeutic intervention, including hearing aids, threshold shift \>20 dB at 3 kHz and above in at least one ear, additional speech-language related services as indicated. Per CTCAE V4.0 grade 4 Hearing impaired is defined as follows; Pediatric Audiologic indication for cochlear implant and additional speech-language related services as indicated.
SecondaryNumber of Participants With Chronic Primary Hypothyroidism/Subclinical Compensatory HypothyroidismHypothyroidism/Subclinical Compensatory HypothyroidismOff-treatment up to 9 years
Thyroid function was assessed as per ACNS0334 Endocrine Guidelines. "Normal" and "Abnormal" are defined at each institution by the laboratory standards where the blood tests are run. Primary Hypothyroidism/Subclinical Compensatory Hypothyroidism is defined as patients with Free T4 level less than "Institutional" Normal or equal to "Institutional" Normal with TSH level greater than "Institutional" Normal.
SecondaryNumber of Participants With Chronic Central HypothyroidismOff-treatment up to 9 years
Thyroid function was assessed as per ACNS0334 Endocrine Guidelines. "Normal" and "Abnormal" are defined at each institution by the laboratory standards where the blood tests are run. Central Hypothyroidism is defined as Free T4 level less than "Institutional" Normal with TSH less than or equal to "Institutional" Normal.
SecondaryNumber of Participants With Chronic Low Somatomedin COff-treatment up to 9 years
Low Somatomedin C is defined as patients with somatomedin C value less than institutional normal. As numbers are too small, descriptive statistics such as number will be reported for this analysis. Growth hormone function was assessed as per ACNS0334 Endocrine Guidelines. Low Somatomedin C levels are defined at each institution by the laboratory standards where the blood tests are run.
SecondaryNumber of Participants With Chronic Diabetes InsipidusBeginning of off-treatment to up to 9 yearsThe number of patients who had "Diabetes Insipidus" and on DDAVP will be reported for this analysis due to small numbers..

Outcomes15

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYNumber of Patients Who Have Either a Complete Response (CR) Rate or No Complete Response RateAt the end of consolidation treatmentPer protocol, only evaluable patients are included.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With Molecular Sub-types of MB, CNS-PNETs/EBTs Represented in the ACNS0334 CohortAt baseline13 patients without molecular data, because of lack of sufficient materials or poor quality of the data, were not included in this analysis.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYPercentage of Participants With Event Free Survival (EFS)Baseline to up to 5 yearsPer protocol all eligible patients randomized to treatment should be included in the analysis.percentage of participants with EFSNUMBER
SECONDARYPatterns of FailureBaseline to up to 5 yearsAll Eligible Participants who relapsed/disease progressed in the study.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYPercentage of Participants With Any Acute Adverse EventsBeginning of treatment to the end of consolidationPer protocol all eligible patients randomized to treatment should be included in the analysis.percentage of participantsNUMBER
SECONDARYNumber of Participants With Acute Hearing Loss and No Acute Hearing LossBeginning of treatment to the end of consolidationPer protocol all eligible patients randomized to treatment should be included in the analysis.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With Chronic Primary Hypothyroidism/Subclinical Compensatory HypothyroidismHypothyroidism/Subclinical Compensatory HypothyroidismOff-treatment up to 9 yearsPer protocol all eligible patients randomized to treatment should be included in the analysis.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With Chronic Central HypothyroidismOff-treatment up to 9 yearsPer protocol all eligible patients randomized to treatment should be included in the analysis.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With Chronic Low Somatomedin COff-treatment up to 9 yearsPer protocol all eligible patients randomized to treatment should be included in the analysis.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With Chronic Diabetes InsipidusBeginning of off-treatment to up to 9 yearsPer protocol all eligible patients randomized to treatment should be included in the analysis.ParticipantsCOUNT_OF_PARTICIPANTS

Results by group102

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Number of Patients Who Have Either a Complete Response (CR) Rate or No Complete Response RateArm I (Patients Treated Without Methotrexate (MTX))Complete response13Participants
Number of Patients Who Have Either a Complete Response (CR) Rate or No Complete Response RateArm II (Patients Treated With MTX)Complete response15Participants
Number of Patients Who Have Either a Complete Response (CR) Rate or No Complete Response RateArm I (Patients Treated Without Methotrexate (MTX))No Complete response16Participants
Number of Patients Who Have Either a Complete Response (CR) Rate or No Complete Response RateArm II (Patients Treated With MTX)No Complete response15Participants
Number of Participants With Molecular Sub-types of MB, CNS-PNETs/EBTs Represented in the ACNS0334 CohortArm I (Patients Treated Without Methotrexate (MTX))Medulloblastoma, sonic hedgehog subgroup5Participants
Number of Participants With Molecular Sub-types of MB, CNS-PNETs/EBTs Represented in the ACNS0334 CohortArm II (Patients Treated With MTX)Medulloblastoma, sonic hedgehog subgroup6Participants
Number of Participants With Molecular Sub-types of MB, CNS-PNETs/EBTs Represented in the ACNS0334 CohortArm I (Patients Treated Without Methotrexate (MTX))Medulloblastoma, group 3 subgroup15Participants
Number of Participants With Molecular Sub-types of MB, CNS-PNETs/EBTs Represented in the ACNS0334 CohortArm II (Patients Treated With MTX)Medulloblastoma, group 3 subgroup10Participants
Number of Participants With Molecular Sub-types of MB, CNS-PNETs/EBTs Represented in the ACNS0334 CohortArm I (Patients Treated Without Methotrexate (MTX))Medulloblastoma, group 4 subgroup0Participants
Number of Participants With Molecular Sub-types of MB, CNS-PNETs/EBTs Represented in the ACNS0334 CohortArm II (Patients Treated With MTX)Medulloblastoma, group 4 subgroup2Participants

Participant flow6

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDArm I (Patients Treated Without Methotrexate (MTX))46
Overall StudySTARTEDArm II (Patients Treated With MTX)45
Overall StudyCOMPLETEDArm I (Patients Treated Without Methotrexate (MTX))26
Overall StudyCOMPLETEDArm II (Patients Treated With MTX)26
Overall StudyNOT COMPLETEDArm I (Patients Treated Without Methotrexate (MTX))20
Overall StudyNOT COMPLETEDArm II (Patients Treated With MTX)19

Adverse events278

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAnemiaBlood and lymphatic system disordersArm I (Patients Treated Without Methotrexate (MTX))3139122
otherAnemiaBlood and lymphatic system disordersArm II (Patients Treated With MTX)193884
otherDisseminated intravascular coagulationBlood and lymphatic system disordersArm I (Patients Treated Without Methotrexate (MTX))1391
otherDisseminated intravascular coagulationBlood and lymphatic system disordersArm II (Patients Treated With MTX)0380
otherFebrile neutropeniaBlood and lymphatic system disordersArm I (Patients Treated Without Methotrexate (MTX))253953
otherFebrile neutropeniaBlood and lymphatic system disordersArm II (Patients Treated With MTX)203843
otherLeukocytosisBlood and lymphatic system disordersArm I (Patients Treated Without Methotrexate (MTX))1391
otherLeukocytosisBlood and lymphatic system disordersArm II (Patients Treated With MTX)0380
otherCardiac arrestCardiac disordersArm I (Patients Treated Without Methotrexate (MTX))1391
otherCardiac arrestCardiac disordersArm II (Patients Treated With MTX)0380

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityArm I (Patients Treated Without Methotrexate (MTX))1839
Total, all-cause mortalityArm II (Patients Treated With MTX)1538
Total, other adverse eventsArm I (Patients Treated Without Methotrexate (MTX))3939
Total, other adverse eventsArm II (Patients Treated With MTX)3638
Total, serious adverse eventsArm I (Patients Treated Without Methotrexate (MTX))839
Total, serious adverse eventsArm II (Patients Treated With MTX)338

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

Grants2

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

ProjectTitlePrincipal investigatorsOrganizationFunderFiscal yearsSource
U10CA180886COG NCTN Network Group Operations CenterHawkins, Douglas S.COG RESEARCH FOUNDATION, LLCNATIONAL CANCER INSTITUTE2014 to 2026NIH RePORTER
U10CA098543Children's Oncology Group Chair's GrantADAMSON, PETER C.CHILDREN'S HOSP OF PHILADELPHIANATIONAL CANCER INSTITUTE2003 to 2013NIH RePORTER

Trial comparisons7

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
Arm I (Patients Treated Without Methotrexate (MTX)) vs Arm II (Patients Treated With MTX): Number of Participants With Chronic Primary Hypothyroidism/Subclinical Compensatory HypothyroidismHypothyroidism/Subclinical Compensatory Hypothyroidism
Trial comparisons
Arm I (Patients Treated Without Methotrexate (MTX)) vs Arm II (Patients Treated With MTX): Number of Participants With Chronic Low Somatomedin CTrial comparisons
Arm I (Patients Treated Without Methotrexate (MTX)) vs Arm II (Patients Treated With MTX): Number of Participants With Secondary MalignanciesTrial comparisons
Arm I (Patients Treated Without Methotrexate (MTX)) vs Arm II (Patients Treated With MTX): Number of Participants With Chronic Diabetes InsipidusTrial comparisons
Arm I (Patients Treated Without Methotrexate (MTX)) vs Arm II (Patients Treated With MTX): deaths from any causeTrial comparisons
Arm I (Patients Treated Without Methotrexate (MTX)) vs Arm II (Patients Treated With MTX): Number of Participants With Chronic Central HypothyroidismTrial comparisons
Arm I (Patients Treated Without Methotrexate (MTX)) vs Arm II (Patients Treated With MTX): serious adverse eventsTrial comparisons

Tests1

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

TestNamed as
Symbol Scan TaskSecondary outcome

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT00336024

GET https://conductscience.org/api/trials/v1/NCT00336024/results?page=2