Evidence map›Paper›PMID 25484061›Full record

ArticlemAbs2014

CEA/CD3 bispecific antibody MEDI-565/AMG 211 activation of T cells and subsequent killing of human tumors is independent of mutations commonly found in colorectal adenocarcinomas.

Michael D Oberst, Stacy Fuhrmann, Kathy Mulgrew, Maria Amann, Lily Cheng, Petra Lutterbuese, Laura Richman, Steve Coats, Patrick A Baeuerle, Scott A Hammond

Open access · goldAbstract read
In one paragraph

Article in mAbs, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed
5.9field-weighted citation impact, top 4% 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

56 citing papers in PubMed, 89 citations in OpenAlex.

  1. Review
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  11. Bispecific Antibodies in Lung Cancer: A State-of-the-Art Review.Pharmaceuticals (Basel, Switzerland) · 2023
    Review
  12. Immuno-PET of colorectal cancer with a CEA-targeted [68 Ga]Ga-nanobody: from bench to bedside.European journal of nuclear medicine and molecular imaging · 2023
    Article
  13. Article
  14. Review
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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

10 authors at 4 institutions in 3 countries.

Michael D Obersta MedImmune LLC ; Gaithersburg , MD USA.
Stacy Fuhrmann
Kathy Mulgrew
Maria Amann
Lily Cheng
Petra Lutterbuese
Laura Richman
Steve Coats
Patrick A Baeuerle
Scott A Hammond
Amplimmune (United States) · USAmgen (Germany) · DEAltimmune (United States) · USRoche (Switzerland) · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Individual or combinations of somatic mutations found in genes from colorectal cancers can redirect the effects of chemotherapy and targeted agents on cancer cell survival and, consequently, on clinical outcome. Novel therapeutics with mechanisms of action that are independent of mutational status would therefore fulfill a current unmet clinical need. Here the CEA and CD3 bispecific single-chain antibody MEDI-565 (also known as MT111 and AMG 211) was evaluated for its ability to activate T cells both in vitro and in vivo and to kill human tumor cell lines harboring various somatic mutations commonly found in colorectal cancers. MEDI-565 specifically bound to normal and malignant tissues in a CEA-specific manner, and only killed CEA positive cells. The BiTE® antibody construct mediated T cell-directed killing of CEA positive tumor cells within 6 hours, at low effector-to-target ratios which were independent of high concentrations of soluble CEA. The potency of in vitro lysis was dependent on CEA antigen density but independent of the mutational status in cancer cell lines. Importantly, individual or combinations of mutated KRAS and BRAF oncogenes, activating PI3KCA mutations, loss of PTEN expression, and loss-of-function mutations in TP53 did not reduce the activity in vitro. MEDI-565 also prevented growth of human xenograft tumors which harbored various mutations. These findings suggest that MEDI-565 represents a potential treatment option for patients with CEA positive tumors of diverse origin, including those with individual or combinations of somatic mutations that may be less responsive to chemotherapy and other targeted agents.

Indexed as

AdenocarcinomaAnimalsAntibodies, BispecificCarcinoembryonic AntigenCD3 ComplexCell Line, TumorCells, CulturedCHO CellsColorectal NeoplasmsCricetinaeCricetulusCytotoxicity, ImmunologicFemaleHeLa CellsHT29 CellsHumansAntibodies, BispecificCarcinoembryonic AntigenCD3 ComplexAMG 211bispecific antibodyBiTE®, bi-specific T cell engagerCD3CEACEACAM5, CEA-related cell adhesion molecule family member 5CEA, carcinoembryonic antigenDHFR, dihydrofolate reductaseEC50, half maximal effective concentrationFFPE, formaldehye fixed paraffin embeddedIV, intravenousMEDI-565MEDI-565, bispecific single-chain antibody specific for CEA and human CD3MT111peripheral blood mononuclear cells, PBMCscFv, single chain variable fragmentSC, subcutaneousSEM, standard error of the meanT cellsTMA, tissue microarray

Identifiers

PMID25484061
PMCPMC4622052
OpenAlexW2045269885

What OpenQuestion holds

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LicenceCC BY-NC
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.