Evidence map›Paper›PMID 28577579›Full record

ArticleFluids and barriers of the CNS2017

Patterns of relapse in primary central nervous system lymphoma: inferences regarding the role of the neuro-vascular unit and monoclonal antibodies in treating occult CNS disease.

Prakash Ambady, Rongwei Fu, Joao Prola Netto, Cymon Kersch, Jenny Firkins, Nancy D Doolittle, Edward A Neuwelt

Open access · goldAbstract read
In one paragraph

Article in Fluids and barriers of the CNS, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.6field-weighted citation impact, top 10% 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, 38 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article
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

7 authors at 1 institution in 1 country.

Prakash AmbadyDepartment of Neurology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, L603, Portland, OR, 97239, USA.
Rongwei FuSchool of Public Health, Oregon Health & Science University, Portland, OR, USA.
Joao Prola NettoDepartment of Neurology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, L603, Portland, OR, 97239, USA.
Cymon KerschDepartment of Neurology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, L603, Portland, OR, 97239, USA.
Jenny FirkinsDepartment of Neurology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, L603, Portland, OR, 97239, USA.
Nancy D DoolittleDepartment of Neurology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, L603, Portland, OR, 97239, USA.
Edward A NeuweltDepartment of Neurology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, L603, Portland, OR, 97239, USA. neuwelte@ohsu.edu.ORCID http://orcid.org/0000-0002-6679-6203
Oregon Health & Science University · US

Funding

Two Compartment Models to Improve Brain Tumor TherapyR01CA137488 · NCI · OREGON HEALTH & SCIENCE UNIVERSITY · PI NEUWELT, EDWARD A. · 2008 to 2019
$7.3M
NCI NIH HHS R01 CA137488
6 · The paper itself

Abstract

background and purposeThe radiologic features and patterns of primary central nervous system lymphoma (PCNSL) at initial presentation are well described. High response rates can be achieved with first-line high-dose methotrexate (HD-MTX) based regimens, yet many relapse within 2 years of diagnosis. We describe the pattern of relapse and review the potential mechanisms involved in relapse.

methodsWe identified 78 consecutive patients who attained complete radiographic response (CR) during or after first-line treatment for newly diagnosed PCNSL (CD20+, diffuse large B cell type). Patients were treated with HD-MTX based regimen in conjunction with blood-brain barrier disruption (HD-MTX/BBBD); 44 subsequently relapsed. Images and medical records of these 44 consecutive patients were retrospectively reviewed. The anatomical location of enhancing lesions at initial diagnosis and at the time of relapse were identified and compared.

results37/44 patients fulfilled inclusion criteria and had new measureable enhancing lesions at relapse; the pattern and location of relapse of these 37 patients were identified. At relapse, the new enhancement was at a spatially distinct site in 30 of 37 patients. Local relapse was found only in seven patients. DISCUSSION: Unlike gliomas, the majority of PCNSL had radiographic relapse at spatially distinct anatomical locations within the brain behind a previously intact neurovascular unit (NVU), and in few cases outside, the central nervous system (CNS). This may suggest either (1) reactivation of occult reservoirs behind an intact NVU in the CNS (or ocular) or (2) seeding from bone marrow or other extra CNS sites.

conclusionRecognizing patterns of relapse is key for early detection and may provide insight into potential mechanisms of relapse as well as help develop strategies to extend duration of complete response.

Indexed as

AdultAgedAged, 80 and overAntibodies, MonoclonalCentral Nervous System NeoplasmsFemaleHumansImage Processing, Computer-AssistedImmunologic FactorsMagnetic Resonance ImagingMaleMiddle AgedNeoplasm Recurrence, LocalNeurovascular CouplingRetrospective StudiesAntibodies, MonoclonalImmunologic Factors

Identifiers

PMID28577579
PMCPMC5457655
OpenAlexW2621231258

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.