Evidence map›Paper›PMID 28493046›Full record

ArticleBreast cancer research and treatment2017

Trastuzumab uptake and its relation to efficacy in an animal model of HER2-positive breast cancer brain metastasis.

Gail D Lewis Phillips, Merry C Nishimura, Jennifer Arca Lacap, Samir Kharbanda, Elaine Mai, Janet Tien, Kimberly Malesky, Simon P Williams, Jan Marik, Heidi S Phillips

Open access · hybridAbstract read
In one paragraph

Article in Breast cancer research and treatment, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
2.7field-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

42 citing papers in PubMed, 62 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 1 institution in 1 country.

Gail D Lewis PhillipsGenentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA. gdl@gene.com.ORCID http://orcid.org/0000-0001-7051-016X
Merry C NishimuraGenentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA.
Jennifer Arca LacapGenentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA.
Samir KharbandaCalico Labs, 1170 Veterans Blvd, South San Francisco, CA, 94080, USA.
Elaine MaiGenentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA.
Janet TienGenentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA.
Kimberly MaleskyNovartis Institutes for BioMedical Research, 250 Massachusetts Ave, Cambridge, MA, 02139, USA.
Simon P WilliamsGenentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA.
Jan MarikGenentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA.
Heidi S PhillipsGenentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA.
Gene Therapy Laboratory · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe extent to which efficacy of the HER2 antibody Trastuzumab in brain metastases is limited by access of antibody to brain lesions remains a question of significant clinical importance. We investigated the uptake and distribution of trastuzumab in brain and mammary fat pad grafts of HER2-positive breast cancer to evaluate the relationship of these parameters to the anti-tumor activity of trastuzumab and trastuzumab emtansine (T-DM1).

methodsMouse transgenic breast tumor cells expressing human HER2 (Fo2-1282 or Fo5) were used to establish intracranial and orthotopic tumors. Tumor uptake and tissue distribution of systemically administered

results

conclusionsIn models of HER2-positive breast cancer brain metastasis, trastuzumab efficacy does not appear to be limited by access to intracranial tumors. Anti-tumor activity improved with the addition of a brain-penetrant PI3K/mTOR inhibitor, suggesting that combining targeted therapies is a more effective strategy for treating HER2-positive breast cancer brain metastases. Survival was also extended in mice with Fo5 brain lesions treated with T-DM1.

Indexed as

AnimalsAntibodies, Monoclonal, HumanizedAntineoplastic Agents, ImmunologicalAntineoplastic Combined Chemotherapy ProtocolsBrain NeoplasmsBreast NeoplasmsErb-b2 Receptor Tyrosine KinasesFemaleHumansMiceMice, TransgenicPyrimidinesSurvival AnalysisThiophenesTissue DistributionTrastuzumabAntibodies, Monoclonal, HumanizedAntineoplastic Agents, ImmunologicalERBB2 protein, humanErb-b2 Receptor Tyrosine KinasesGNE-317PyrimidinesThiophenesTrastuzumabzirconium-89-trastuzumabBlood–brain barrierBrain metastasisBreast cancerT-DM1Trastuzumab

Identifiers

PMID28493046
PMCPMC5495871
OpenAlexW2612893145

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.