International Society of Paediatric Oncology (SIOP) PNET 5 Medulloblastoma
AN INTERNATIONAL PROSPECTIVE TRIAL ON MEDULLOBLASTOMA (MB) IN CHILDREN OLDER THAN 3 TO 5 YEARS WITH WNT BIOLOGICAL PROFILE (PNET 5 MB - LR and PNET 5 MB - WNT-HR), AVERAGE-RISK BIOLOGICAL PROFILE (PNET 5 MB -SR), OR TP53 MUTATION, AND REGISTRY FOR MB OCCURRING IN THE CONTEXT OF GENETIC PREDISPOSITION
2 other identifiers
interventional
360
16 countries
77
Brief Summary
The study PNET 5 MB has been designed for children with medulloblastoma of standard risk (according to the risk-group definitions which have been used so far; e.g. in PNET 4). With the advent of biological parameters for stratification into clinical medulloblastoma trials, the ß-catenin status will be the only criterion according to which study patients will be assigned to either treatment arm PNET 5 MB - LR or to PNET 5 MB - SR, respectively. The initial diagnostic assessments (imaging, staging, histology, and tumor biology) required for study entry are the same for both treatment arms. With the amendment for version 12 of the protocol, patients who have a WNT-activated medulloblastoma with clinically high-risk features can be included in the PNET 5 MB WNT-HR study, and patients with a high-risk SHH medulloblastoma with TP53 mutation (both somatic or germline including mosaicism) can be included in the PNET5 MB SHH-TP53 study. Data on patients with pathogenic germline alteration or cancer predisposition syndrome, who cannot be included in any prospective trial due to unavailability or due to physician or family decision, can be documented within the observational PNET 5 MB registry.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Jun 2014
Longer than P75 for phase_2
77 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 7, 2014
CompletedFirst Posted
Study publicly available on registry
February 19, 2014
CompletedStudy Start
First participant enrolled
June 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 1, 2026
December 4, 2025
November 1, 2025
12.5 years
February 7, 2014
November 27, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
3-year Event-Free Survival (EFS)
LR-arm after 9 years, SR-arm after 105 events (approx. 10 years)
Secondary Outcomes (10)
Overall survival
10 years
Pattern of relapse
10 years
Late effects of therapy on endocrine function
10 years
Late effects of therapy on audiology
8 years
Late effects of therapy on neurology
10 years
- +5 more secondary outcomes
Study Arms (4)
PNET 5 MB-LR (low-risk)
EXPERIMENTALRadiotherapy and reduced-intensity maintenance chemotherapy. Total treatment duration is 39 weeks.
PNET 5 MB-SR (standard-risk)
EXPERIMENTALRadiotherapy with carboplatin or radiotherapy without carboplatin and maintenance chemotherapy. Total treatment duration is 48 weeks.
PNET 5 MB WNT-HR
EXPERIMENTALRadiotherapy adapted to age and metastatic Status and maintenance chemotherapy adapted to age. Total treatment duration is 39 to 48 weeks.
PNET 5 MB SHH-TP53
EXPERIMENTALReduced chemotherapy with Doxorubicin, VCR, HD-MTX, Carboplatin, and MTX intraventricularly Stratification of radiotherapy according to * presence of metastasis * germline mutation in TP53 (including mosaicism) Maintenance chemotherapy with VBL Total treatment duration is 1 year
Interventions
Starts 6 weeks after radiotherapy. 6 cycles alternating Regimen A and Regimen B. Regimen A (cycles 1, 3, 5): cisplatin 70 mg/m2 day 1, CCNU 75 mg/m2 day 1, vincristine 1.5 mg/m2 days 1, 8 and 15, Regimen B: (cycles 2, 4, 6): cyclophosphamide 1 x 1000 mg/m2 days 1-2, vincristine 1.5 mg/m2 day 1. Interval after cycle A: 6 weeks, after cycle B: 3 weeks, for a total duration of 27 weeks. Cumulative doses of chemotherapy drugs: cisplatin 210 mg/m2, lomustine (CCNU) 225 mg/m2, vincristine 18 mg/m2, cyclophosphamide 6 g/m2.
Brain - 23.40 Gy in 13 daily fractions of 1.80 Gy Spine - 23.40 Gy in 13 daily fractions of 1.80 Gy Primary tumour boost - 30.60 Gy in 17 daily fractions of 1.80 Gy Total dose - 54 Gy Duration of radiotherapy 6 weeks LR Arm after Amendment (Protocol version 11- 17 Nov 2014): Brain - 18.0 Gy in 10 daily fractions of 1.80 Gy Spine - 18.0 Gy in 10 daily fractions of 1.80 Gy Primary tumour boost - 36.0 Gy in 20 daily fractions of 1.80 Gy Total dose - 54 Gy Duration of radiotherapy 6 weeks
Brain - 23.40 Gy in 13 daily fractions of 1.80 Gy Spine - 23.40 Gy in 13 daily fractions of 1.80 Gy Primary tumour boost - 30.60 Gy in 17 daily fractions of 1.80 Gy Total dose - 54 G Carboplatin 35 mg/m2 5 times/week.
Starts 6 weeks after radiotherapy. 8 cycles alternating Regimen A and Regimen B. Regimen A (cycles 1, 3, 5, 7): cisplatin 70 mg/m2 day 1, CCNU 75 mg/m2 day 1, vincristine 1.5 mg/m2 days 1, 8 and 15 Regimen B: (cycles 2, 4, 6, 8): cyclophosphamide 1 x 1000 mg/m2 days 1-2, vincristine 1.5 mg/m2 day 1. Interval after cycle A: 6 weeks, after cycle B: 3 weeks. Duration 36 weeks. Cumulative doses of chemotherapy drugs: cisplatin 280 mg/m2, lomustine (CCNU) 300 mg/m2, vincristine 24 mg/m2, cyclophosphamide 8 g/m2, carboplatin 1050 mg/m2 (in randomized patients).
Brain - 36.0 Gy in 20 daily fractions of 1.8 Gy Spine - 36.0 Gy in 20 daily fractions of 1.8 Gy Primary tumour boost - 18.0 Gy in 10 daily fractions of 1.8 Gy Metastases boost (cranial) - 14.4 Gy in 8 daily fractions of 1.8 Gy Metastases boost (spinal) - 9.0 Gy in 5 daily fractions of 1.8 Gy Total dose to primary tumour - 54.0 Gy in 30 daily fractions of 1.8 Gy Total dose to cranial metastases - 50.4 Gy in 30 daily fractions of 1.8 Gy Total dose to spinal metastases - 45.0 Gy in 25 daily fractions of 1.8 Gy
Doxorubicin 37,5mg/m² in 24h-infusion, days 1 and 2 (If administration of doxorubicin is not deemed appropriate, doxorubicin can be substituted by carboplatin 200mg/m²) VCR 1,5mg/m² (max. dose 2mg) in short infusion, days 1, 15, 29, 43 HD-MTX 5g/m²in two doses (0.5g/m² in 0.5h and 4.5g/m² in 23.5h), days 15 and 29 (+ Leucovorin) Carboplatin 200mg/m² in 1h-infusion, days 43, 44, and 45 MTX 2mg intraventricularly, days 1-4, 15, 16, 29, 30, 43-46
* with VCR 1,5 mg/m2 (max. 2mg), once weekly during radiotherapy, for a maximum of 6 weeks * clinical target volume (CTV): safety margin along typical spread 10 mm: 23.4.Gy in 13 fractions to CTV. * focal RT boost to tumour bed and residual tumour (GTV) (boost: 30.6 Gy in 17 daily fractions of 1.8 Gy)
craniospinal radiotherapy with boost to tumour bed, residual tumour and metastatic deposits with VCR 1,5 mg/m2 (max. 2mg), once weekly during radiotherapy, for a maximum of 6 weeks Brain - 23.4 Gy in 13 daily fractions of 1.8 Gy Spine - 23.4 Gy in 13 daily fractions of 1.8 Gy Primary tumour boost - 30.6 Gy in 17 daily fractions of 1.8 Gy Metastases boost (cranial) - 30.6 Gy in 17 daily fractions of 1.8 Gy Metastases boost (spinal) - 21.6 Gy in 12 daily fractions of 1.8 Gy Total dose to primary tumour - 54.0 Gy in 30 daily fractions of 1.8 Gy Total dose to cranial metastases - 54.0 Gy in 30 daily fractions of 1.8 Gy Total dose to spinal metastases - 45.0 Gy in 25 daily fractions of 1.8 Gy
craniospinal radiotherapy with boost to tumour bed, residual tumour and metastatic deposits with VCR 1,5 mg/m2 (max. 2mg), once weekly during radiotherapy, for a maximum of 6 weeks Brain - 36.0 Gy in 20 daily fractions of 1.8 Gy Spine - 36.0 Gy in 20 daily fractions of 1.8 Gy Primary tumour boost - 18.0 Gy in 10 daily fractions of 1.8 Gy Metastases boost (cranial) - 18.0 Gy in 10 daily fractions of 1.8 Gy Metastases boost (spinal) - 9.0 Gy in 5 daily fractions of 1.8 Gy Total dose to primary tumour - 54.0 Gy in 30 daily fractions of 1.8 Gy Total dose to cranial metastases - 54.0 Gy in 30 daily fractions of 1.8 Gy Total dose to spinal metastases - 45 Gy in 25 daily fractions of 1.80 Gy
Eligibility Criteria
You may qualify if:
- Age at diagnosis, at least 3 - 5 years (depending on the country) and less than 22 years (LR-arm: less than 16 years). The date of diagnosis is the date on which surgery is undertaken.
- Histologically proven medulloblastoma, including the following subtypes, as defined in the WHO classification (2007): classic medulloblastoma, desmoplastic/nodular medulloblastoma. Pre-treatment central pathology review is considered mandatory.
- Standard-risk medulloblastoma, defined as;
- total or near total surgical resection with less than or equal to 1.5 cm2 (measured on axial plane) of residual tumour on early post-operative MRI, without and with contrast, on central review;
- no central nervous system (CNS) metastasis on MRI (cranial and spinal) on central review;
- no tumour cells on the cytospin of lumbar CSF
- no clinical evidence of extra-CNS metastasis; Patients with a reduction of postoperative residual tumor through second surgery to less than or equal to 1.5 cm2 are eligible, if if timeline for start of radiotherapy can be kept.
- Submission of high quality biological material including fresh frozen tumor samples for the molecular assessment of biological markers (such as the assessment of myelocytomatosis oncogene (MYC) copy number status) in national biological reference centers. Submission of blood is mandatory for all patients, who agree on germline DNA studies. Submission of CSF is recommended.
- No amplification of MYC or MYCN (determined by FISH).
- For LR-arm: Low-risk biological profile, defined as WNT subgroup positivity. The WNT subgroup is defined by the presence of (i) ß-catenin mutation (mandatory testing), or (ii) ß-catenin nuclear immuno-positivity by IHC (mandatory testing) and ß-catenin mutation, or (iii) ß-catenin nuclear immuno-positivity by IHC and monosomy 6 (optional testing).
- For SR-arm: average-risk biological profile, defined as ß-catenin nuclear immuno-negativity by IHC (mandatory) and mutation analysis (optional).
- No prior therapy for medulloblastoma other than surgery.
- Radiotherapy aiming to start no more than 28 days after surgery. Foreseeable inability to start radiotherapy within 40 days after surgery renders patients ineligible for the study.
- Common toxicity criteria (CTC) grades \< 2 for liver, renal, haematological function
- no significant sensorineural hearing deficit as defined by pure tone audiometry with bone conduction or air conduction and normal tympanogram showing no impairment ≥ 20 decibel (dB) at 1-3 kilohertz (kHz). If performance of pure tone audiometry is not possible postoperatively, normal otoacoustic emissions are acceptable, if there is no history for hearing deficit.
- +4 more criteria
You may not qualify if:
- Brainstem or supratentorial primitive neuro-ectodermal tumour.
- Atypical teratoid rhabdoid tumour.
- Medulloepithelioma; Ependymoblastoma
- Large-cell medulloblastoma, anaplastic medulloblastoma, or medulloblastoma with extensive nodularity (MBEN), centrally confirmed.
- Unfavourable or undeterminable biological profile, defined as amplification of MYC or MYCN, or MYC or MYCN or WNT subgroup status not determinable.
- Metastatic medulloblastoma (on CNS MRI and/or positive cytospin of postoperative lumbar CSF).
- Patient previously treated for a brain tumour or any type of malignant disease.
- DNA breakage syndromes (e.g. Fanconi anemia, Nijmegen breakage syndrome) or other, or identified Gorlin,Turcot, or Li Fraumeni syndrome.
- Patients who are pregnant.
- Female patients who are sexually active and not taking reliable contraception.
- Patients who cannot be regularly followed up due to psychological, social, familial or geographic reasons.
- Patients in whom non-compliance with toxicity management guidelines can be expected.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (77)
Medical University of Graz
Graz, 8010, Austria
University Hospital Gasthuisberg
Leuven, 3000, Belgium
University Hospital Brno
Brno, 61300, Czechia
Rigshospitalet
Copenhagen, 2100, Denmark
CHU de Grenoble
Grenoble, 38045, France
Institute Curie
Paris, 75231, France
CHU-TOURS - Hôpital Clocheville
Tours, 37044, France
Hôpital NANCY-BRABOIS
Vandœuvre-lès-Nancy, 54500, France
University Hospital Aachen
Aachen, 52074, Germany
Klinikum Augsburg
Augsburg, 86156, Germany
Helios Klinikum Berlin-Buch
Berlin, 13125, Germany
Charite Campus, University of Berlin
Berlin, 13353, Germany
Evangelisches Krankenhaus Bielefeld
Bielefeld, 33617, Germany
University Hospital Bonn
Bonn, 53113, Germany
Klinikum Braunschweig
Braunschweig, 38118, Germany
Klinikum Bremen-Mitte
Bremen, 28177, Germany
Klinikum Chemnitz
Chemnitz, 09116, Germany
Kliniken der Stadt Köln
Cologne, 50735, Germany
University Hospital Cologne
Cologne, 50924, Germany
Carl-Thiem-Klinikum Cottbus
Cottbus, 03048, Germany
Vestische Kinder- und Jugendklinik, University Witten/Herdecke
Datteln, 45711, Germany
Klinikum Dortmund
Dortmund, 44137, Germany
University Hospital Dresden
Dresden, 01307, Germany
Klinikum Duisburg
Duisburg, 47055, Germany
University Hospital Düsseldorf
Düsseldorf, 40225, Germany
HELIOS Klinikum-Erfurt
Erfurt, 99089, Germany
University Hospital Erlangen
Erlangen, 91054, Germany
University Hospital Essen
Essen, 45147, Germany
University Hospital Frankfurt/Main
Frankfurt, 60590, Germany
University Hospital Freiburg
Freiburg im Breisgau, 79106, Germany
University Hospital Gießen and Marburg
Giessen, 35392, Germany
University Hospital Göttingen
Göttingen, 37075, Germany
University Hospital Greifswald
Greifswald, 17475, Germany
University Hospital Halle/Saale
Halle, 06120, Germany
University Medical Center Hamburg-Eppendorf
Hamburg, 20246, Germany
Medizinische Hochschule Hannover
Hanover, 30625, Germany
Angelika-Lautenschläger-Klinik
Heidelberg, 69120, Germany
Gemeinschaftskrankenhaus Herdecke
Herdecke, 58313, Germany
University Hospital Homburg/Saar
Homburg, 66421, Germany
University Hospital Jena
Jena, 07740, Germany
Städtisches Klinikum Karlsruhe
Karlsruhe, 76133, Germany
Klinikum Kassel
Kassel, 34125, Germany
UK-SH Campus Kiel
Kiel, 24105, Germany
Gemeinschaftsklinikum Koblenz-Mayen
Koblenz, 56073, Germany
HELIOS Klinikum Krefeld
Krefeld, 47805, Germany
University Hospital Leipzig
Leipzig, 04103, Germany
University Hospital Lübeck
Lübeck, 23538, Germany
University Hospital Magdeburg
Magdeburg, 39120, Germany
University Hospital Mainz
Mainz, 55131, Germany
University Hospital Mannheim
Mannheim, 68167, Germany
Johannes Wesling Klinikum Minden
Minden, 32429, Germany
University Hospital München, Dr. von Haunersches Kinderspital
München, 80337, Germany
Klinikum Schwabing, Pediatric Hospital of Technical University
München, 80804, Germany
University Hospital Münster
Münster, 48149, Germany
Cnopf'sche Kinderklinik
Nuremberg, 90419, Germany
Klinikum Oldenburg
Oldenburg, 26133, Germany
University Hospital Regensburg
Regensburg, 93053, Germany
University Hospital Rostock
Rostock, 18057, Germany
Asklepios Klinik Sankt Augustin
Sankt Augustin, 53757, Germany
HELIOS-Kliniken Schwerin
Schwerin, 19049, Germany
Klinikum Stuttgart
Stuttgart, 70176, Germany
Mutterhaus der Borromäerinnen
Trier, 54290, Germany
University Hospital Tübingen
Tübingen, 72076, Germany
University Hospital Ulm
Ulm, 89075, Germany
Dr. Horst Schmidt Kliniken
Wiesbaden, 65199, Germany
Klinikum der Stadt Wolfsburg
Wolfsburg, 38440, Germany
University Hospital Würzburg
Würzburg, 97080, Germany
Our Lady's Children's Hospital
Dublin, 12, Ireland
Fondazione IRCCS Istituto Nazionale Tumori
Milan, 20133, Italy
Prinses Máxima Center for Pediatric Oncology
Bilthoven, 3720, Netherlands
Rigshospitalet
Oslo, 0424, Norway
The Children's Memorial Health Institute
Warsaw, 04-730, Poland
University Hospital S.Joao
Porto, 4200, Portugal
Oncology Hospital Cruces Bilbao
Barakaldo, 48903, Spain
Barncancercentrum Drottning Silvias Barnochungdomssjukhus
Göteburg, 41685, Sweden
University Children's Hospital
Zurich, 8032, Switzerland
Great Ormond Street Hospital
London, WC1N 3JH, United Kingdom
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Francois Doz, Prof. Dr.
Institut Curie Paris, France
- PRINCIPAL INVESTIGATOR
Till Milde, Dr. med.
Hopp Children´s Tumor Center at the NCT (KiTZ) and German Cancer Research Center
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 7, 2014
First Posted
February 19, 2014
Study Start
June 1, 2014
Primary Completion (Estimated)
December 1, 2026
Study Completion (Estimated)
December 1, 2026
Last Updated
December 4, 2025
Record last verified: 2025-11