Evidence map›Paper›PMID 18780832›Full record

Trial reportBlood2008

CD20 up-regulation in pediatric B-cell precursor acute lymphoblastic leukemia during induction treatment: setting the stage for anti-CD20 directed immunotherapy.

Michael N Dworzak, Angela Schumich, Dieter Printz, Ulrike Pötschger, Zvenyslava Husak, Andishe Attarbaschi, Giuseppe Basso, Giuseppe Gaipa, Richard Ratei, Georg Mann and 1 more

2 registry-linked trialsOpen access · bronzeAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in Blood, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 66 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 1 pooled it
7.9field-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.

NCT00430118 phase3completednot on this map

ALL-BFM 2000 Multi-Center Study for the Treatment of Children and Adolescents With Acute Lymphoblastic Leukemia

TypeinterventionalSponsorUniversity Hospital Schleswig-HolsteinRan2000 to 2012Enrolled4,559ConditionsLeukemiaArmsasparaginase, cyclophosphamide, cytarabine, daunorubicin hydrochloride, dexamethasone
NCT01429610 phase2unknown statusnot on this mapstarted 2011, after this paper: background citation

Phase 2 Study Evaluating the Efficacy of Rituximab Plus Modified VPDL for Newly Diagnosed CD20-Positive Adult Acute Lymphoblastic Leukemia

TypeinterventionalSponsorAsan Medical CenterRan2011 to 2019Enrolled78ConditionsPrecursor Cell Lymphoblastic Leukemia-LymphomaArmsRituximab+mVPDL
3 · Its place in the literature

Who cites it

66 citing papers in PubMed, 1 synthesis or guideline pooled it, 150 citations in OpenAlex.

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  15. Advances in laboratory medicine · 2025
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6 more citing papers are in PubMed but not listed here.

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

11 authors at 4 institutions in 3 countries.

Michael N DworzakChildren's Cancer Research Institute, Vienna, Austria.
Angela Schumich
Dieter Printz
Ulrike Pötschger
Zvenyslava Husak
Andishe Attarbaschi
Giuseppe Basso
Giuseppe Gaipa
Richard Ratei
Georg Mann
Helmut Gadner
St Anna Children's Hospital · ATCharité - Universitätsmedizin Berlin · DEUniversity of Milano-Bicocca · ITUniversity of Padua · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

CD20 is expressed in approximately one- half of pediatric acute lymphoblastic leukemia (ALL) cases with B-cell precursor (BCP) origin. We observed that it is occasionally up-regulated during treatment. To understand the impact of this on the potential effectiveness of anti-CD20 immunotherapy, we studied 237 CD10(+) pediatric BCP-ALL patients with Berlin-Frankfurt-Munster (BFM)-type therapy. We analyzed CD20 expression changes from diagnosis to end-induction, focusing on sample pairs with more than or equal to 0.1% residual leukemic blasts, and assessed complement-induced cytotoxicity by CD20-targeting with rituximab in vitro. CD20-positivity significantly increased from 45% in initial samples to 81% at end-induction (day 15, 71%). The levels of expression also increased; 52% of cases at end-induction had at least 90% CD20(pos) leukemic cells, as opposed to 5% at diagnosis (day 15, 20%). CD20 up-regulation was frequent in high-risk patients, patients with high minimal residual disease at end-induction, and patients who suffered later from relapse, but not in TEL/AML1 cases. Notably, up-regulation occurred in viable cells sustaining chemotherapy. In vitro, CD20 up-regulation significantly enhanced rituximab cytotoxicity and could be elicited on prednisolone incubation. In conclusion, CD20 up-regulation is frequently induced in BCP-ALL during induction, and this translates into an acquired state of higher sensitivity to rituximab. This study was registered at http://www.clinicaltrials.gov as #NCT00430118.

Indexed as

AdolescentAntibodies, MonoclonalAntibodies, Monoclonal, Murine-DerivedAntigens, CD20Antineoplastic Combined Chemotherapy ProtocolsAsparaginaseChildChild, PreschoolDaunorubicinFemaleGene Expression Regulation, LeukemicHumansInfantMaleNeoplasm, ResidualPrecursor B-Cell Lymphoblastic Leukemia-LymphomaAntibodies, MonoclonalAntibodies, Monoclonal, Murine-DerivedAntigens, CD20AsparaginaseDaunorubicinPrednisoneRituximabVincristine

Identifiers

PMID18780832
PMCPMC2581996
OpenAlexW2005395372

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.