Evidence map›Paper›PMID 24190981›Full record

ArticleClinical cancer research : an official journal of the American Association for Cancer Research2014

Complement activation and intraventricular rituximab distribution in recurrent central nervous system lymphoma.

Cigall Kadoch, Jing Li, Valerie S Wong, Lingjing Chen, Soonmee Cha, Pamela Munster, Clifford A Lowell, Marc A Shuman, James L Rubenstein

Abstract read
In one paragraph

Article in Clinical cancer research : an official journal of the American Association for Cancer Research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 8% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Intrathecal administration of Anti-Nogo-A antibody in macaque monkeys: Pharmacokinetics, tissue penetration and target interaction.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. On point in primary CNS lymphoma.Hematological oncology · 2020
    Review
  13. Review
  14. Article
  15. Article
  16. Biology of CNS lymphoma and the potential of novel agents.Hematology. American Society of Hematology. Education Program · 2017
    Review
  17. The Challenge of Primary Central Nervous System Lymphoma.Hematology/oncology clinics of North America · 2016
    Review
  18. Review
  19. Article
  20. Progress in central nervous system lymphomas.British journal of haematology · 2014
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Cigall KadochAuthors' Affiliations: Division of Hematology/Oncology, Genentech, South San Francisco; Helen Diller Comprehensive Cancer Center; and Department of Radiology, Laboratory Medicine, University of California, San Francisco, San Francisco, California.
Jing Li
Valerie S Wong
Lingjing Chen
Soonmee Cha
Pamela Munster
Clifford A Lowell
Marc A Shuman
James L Rubenstein
University of California, San Francisco · USUCSF Helen Diller Family Comprehensive Cancer Center · USU-M Rogel Cancer Center

Funding

Mechanisms of Neutrophil ActivationR01AI065495 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LOWELL, CLIFFORD A · 2005 to 2017
$3.7M
The Role of Interleukin-4 (IL-4) in the Pathogenesis of Non-Hodgkin's LymphomaR01CA139083 · NCI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI RUBENSTEIN, JAMES LOUIS · 2009 to 2018
$3.4M
NCI NIH HHS R01 CA139083NCI NIH HHS R01CA139-83-01A1NIAID NIH HHS R01 AI065495
6 · The paper itself

Abstract

purposeTo elucidate the mechanistic basis for efficacy of intrathecal rituximab. We evaluated complement activation as well as the pharmacokinetics of intraventricular rituximab in patients who participated in two phase 1 multicenter studies. EXPERIMENTAL

designWe evaluated complement activation as a candidate mediator of rituximab within the central nervous system (CNS). Complement C3 and C5b-9 were quantified by ELISA in serial cerebrospinal fluid (CSF) specimens after intraventricular rituximab administration. We determined rituximab concentration profiles in CSF and serum. A population three- compartment pharmacokinetic model was built to describe the disposition of rituximab following intraventricular administration. The model was derived from results of the first trial and validated with results of the second trial.

resultsComplement C3 and C5b-9 were reproducibly activated in CSF after intraventricular rituximab. Ectopic expression of C3 mRNA and protein within CNS lymphoma lesions was localized to myeloid cells. Constitutive high C3 activation at baseline was associated with adverse prognosis. A pharmacokinetic model was built, which contains three distinct compartments, to describe the distribution of rituximab within the neuroaxis after intraventricular administration.

conclusionsWe provide the first evidence of C3 activation within the neuroaxis with intraventricular immunotherapy and suggest that complement may contribute to immunotherapeutic responses of rituximab in CNS lymphoma. Penetration of rituximab into neural tissue is supported by this pharmacokinetic model and may contribute to efficacy. These findings have general implications for intraventricular immunotherapy. Our data highlight potential innovations to improve efficacy of intraventricular immunotherapy both via modulation of the innate immune response as well as innovations in drug delivery.

Indexed as

Complement ActivationAdultAgedAged, 80 and overAntibodies, Monoclonal, Murine-DerivedAntineoplastic AgentsCentral Nervous System NeoplasmsClinical Trials, Phase I as TopicComplement C3aComplement C5bFemaleHumansInjections, IntraventricularInjections, SpinalLymphomaMaleAntibodies, Monoclonal, Murine-DerivedAntineoplastic AgentsComplement C3aComplement C5bRituximab

Identifiers

PMID24190981
PMCPMC3944388
OpenAlexW2145420680

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.