Evidence map›Paper›PMID 33844469›Full record

Trial reportPediatric blood & cancer2021

Temozolomide with irinotecan versus temozolomide, irinotecan plus bevacizumab for recurrent medulloblastoma of childhood: Report of a COG randomized Phase II screening trial.

Adam S Levy, Mark Krailo, Susan Chi, Doojduen Villaluna, Linda Springer, Chris Williams-Hughes, Maryam Fouladi, Amar Gajjar

Open access · greenAbstract readClinical Trial, Phase IIRandomized Controlled Trial
In one paragraph

Trial report in Pediatric blood & cancer, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 1 pooled it
5.7field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

44 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Guideline
  2. Trial
  3. Pediatric medulloblastoma.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2026
    Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. Review
  9. Review
  10. Article
  11. National multicentered retrospective review of salvage therapy for pediatric medulloblastoma: a Canadian experience.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2025
    Article
  12. Bevacizumab in Pediatric Neuro-Oncology.Current oncology (Toronto, Ont.) · 2025
    Review
  13. Article
  14. Molecular features reflect clinical outcomes after recurrence in medulloblastoma: a single-institution experience.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2025
    Article
  15. Review
  16. Article
  17. Review
  18. Medulloblastoma: biology and immunotherapy.Frontiers in immunology · 2025
    Review
  19. Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 6 institutions in 1 country.

Adam S LevyAlbert Einstein College of Medicine, Children's Hospital at Montefiore, Bronx, New York, USA.ORCID 0000-0002-1593-8099
Mark KrailoDepartment of Preventive Medicine, University of Southern California, Los Angeles, California, USA.
Susan ChiDana-Farber/Harvard Cancer Center, Boston, Massachusetts, USA.
Doojduen VillalunaChildren's Oncology Group, Monrovia, California, USA.
Linda SpringerChildren's Oncology Group, Monrovia, California, USA.
Chris Williams-HughesDepartment of Preventive Medicine, University of Southern California, Los Angeles, California, USA.
Maryam FouladiCincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.
Amar GajjarSaint Jude Children's Research Hospital, Memphis, Tennessee, USA.ORCID 0000-0001-5019-0699
Children's Oncology Group · USUniversity of Southern California · USAlbert Einstein College of Medicine · USCincinnati Children's Hospital Medical Center · USDana-Farber/Harvard Cancer Center · USSt. Jude Children's Research Hospital · US

Funding

NCTN BIQSFP ANBL1531 (NRT)U10CA180886 · NCI · PUBLIC HEALTH INSTITUTE · PI Douglas S. Hawkins · 2014 to 2026
$390.6M
COG SDMC - Statistics CoreU10CA180899 · NCI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI TODD A ALONZO · 2014 to 2026
$132.8M
NCI NIH HHS U10 CA180886NCI NIH HHS U10 CA180899
6 · The paper itself

Abstract

backgroundApproximately 30% of children with medulloblastoma (MB) experience recurrence, which is usually incurable. This study compared the overall survival (OS) of patients receiving temozolomide (TMZ) and irinotecan with that of patients receiving TMZ, irinotecan, and bevacizumab for recurrent MB/central nervous system (CNS) primitive neuroectodermal tumor (PNET).

methodsPatients with relapsed/refractory MB or CNS PNET were randomly assigned to receive TMZ (150 mg/m

resultsOne hundred five patients were eligible and treated on study. Median OS was 13 months in the standard arm and 19 months with the addition of bevacizumab; median event-free survival (EFS) was 6 months in the standard arm and 9 months with the addition of bevacizumab. The hazard ratio for death from the stratified relative-risk regression model is 0.63. Overall, 23 patients completed 12 courses of planned protocol therapy, 23% (12/52) in the experimental arm with bevacizumab versus 21% (11/53) in the standard arm. Toxicity profiles were comparable in both treatment arms. The estimate of the incidence of feasibility events associated with the bevacizumab arm is three of 52 (5.8%) (95% CI 1.2-16%). Events included myelosuppression, electrolyte abnormalities, diarrhea, and elevated transaminases. One intracranial hemorrhage event was observed in each arm.

conclusionThe addition of bevacizumab to TMZ/irinotecan significantly reduced the risk of death in children with recurrent MB. The combination was relatively well tolerated in this heavily pretreated cohort. The three-drug regimen demonstrated a sufficient risk reduction to warrant further investigation.

Indexed as

Antineoplastic Combined Chemotherapy ProtocolsBrain NeoplasmsMedulloblastomaNeuroectodermal Tumors, PrimitiveBevacizumabChildHumansIrinotecanTemozolomideBevacizumabIrinotecanTemozolomidebevacizumabirinotecanPNETrecurrent medulloblastomatemozolomide

Identifiers

PMID33844469
PMCPMC8764558
OpenAlexW3153758771

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.