Evidence map›Paper›PMID 32803633›Full record

ArticleBreast cancer research and treatment2020

Phase Ib clinical trial of the anti-frizzled antibody vantictumab (OMP-18R5) plus paclitaxel in patients with locally advanced or metastatic HER2-negative breast cancer.

Jennifer R Diamond, Carlos Becerra, Donald Richards, Alain Mita, Cynthia Osborne, Joyce O'Shaughnessy, Chun Zhang, Randall Henner, Ann M Kapoun, Lu Xu and 5 more

Registry-linked trialOpen access · greenAbstract readClinical Trial, Phase I
In one paragraph

Article in Breast cancer research and treatment, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01973309 (A Phase 1b Dose Escalation Study of Vantictumab), which is not on this map. Cited by 95 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed, 1 pooled it
6.8field-weighted citation impact, top 2% 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.

NCT01973309 phase1completednot on this map

A Phase 1b Dose Escalation Study of Vantictumab (OMP-18R5) in Combination With Paclitaxel in Patients With Locally Recurrent or Metastatic Breast Cancer

TypeinterventionalSponsorOncoMed Pharmaceuticals, Inc.Ran2013 to 2017Enrolled37ConditionsMetastatic Breast CancerArmsVantictumab combined with paclitaxel
3 · Its place in the literature

Who cites it

95 citing papers in PubMed, 1 synthesis or guideline pooled it, 144 citations in OpenAlex.

  1. Pooled it
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  5. Beyond the target: implications of Wnt pathway inhibitors on bone health.Journal of molecular medicine (Berlin, Germany) · 2026
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  18. FZD7 expression marks mammary tumor-initiating cells.Proceedings of the National Academy of Sciences of the United States of America · 2025
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35 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

15 authors at 5 institutions in 1 country.

Jennifer R DiamondUniversity of Colorado Anschutz Medical Campus, University of Colorado Cancer Center, 12801 E 17th Ave, Mailstop 8117, Aurora, CO, 80045, USA. Jennifer.diamond@cuanschutz.edu.ORCID http://orcid.org/0000-0002-0703-2772
Carlos BecerraBaylor Sammons Cancer Center, Texas Oncology, US Oncology, Dallas, TX, USA.
Donald RichardsTexas Oncology, US Oncology, Tyler, TX, USA.
Alain MitaSamuel Oschin Comprehensive Cancer Institute, 8700 Beverly Blvd, SCCT Mezzanine MS 35, Los Angeles, CA, 90048, USA.
Cynthia OsborneBaylor Sammons Cancer Center, Texas Oncology, US Oncology, Dallas, TX, USA.
Joyce O'ShaughnessyBaylor Sammons Cancer Center, Texas Oncology, US Oncology, Dallas, TX, USA.
Chun ZhangOncoMed Pharmaceuticals, Redwood City, CA, USA.
Randall HennerOncoMed Pharmaceuticals, Redwood City, CA, USA.
Ann M KapounOncoMed Pharmaceuticals, Redwood City, CA, USA.
Lu XuOncoMed Pharmaceuticals, Redwood City, CA, USA.
Bob StaggOncoMed Pharmaceuticals, Redwood City, CA, USA.
Shailaja UttamsinghOncoMed Pharmaceuticals, Redwood City, CA, USA.
Rainer K BrachmannOncoMed Pharmaceuticals, Redwood City, CA, USA.
Azeez FarookiMemorial Sloan Kettering Cancer Center, New York, NY, USA.
Monica MitaSamuel Oschin Comprehensive Cancer Institute, 8700 Beverly Blvd, SCCT Mezzanine MS 35, Los Angeles, CA, 90048, USA. Monica.mita@cshs.org.
OncoMed (United States) · USTexas Oncology · USSamueli Institute · USMemorial Sloan Kettering Cancer Center · USUniversity of Colorado Cancer Center · US

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Nicholas D Socci · 1985 to 2026
$347.4M
University of Colorado Cancer Center Support Grant - Lung Cancer Patient-Derived Xenografts with Autologous Human Immune SystemsP30CA046934 · NCI · UNIVERSITY OF COLORADO DENVER · PI James V Degregori · 1988 to 2026
$117.0M
The Development of Novel Individualized Therapy for Triple-Negative Breast CancerK23CA172691 · NCI · UNIVERSITY OF COLORADO DENVER · PI DIAMOND, JENNIFER R. · 2013 to 2017
$859k
NCI NIH HHS 1K23CA172691-01A1NCI NIH HHS K23 CA172691NCI NIH HHS P30 CA008748NCI NIH HHS P30 CA046934Oncomed Pharmaceuticals 111
6 · The paper itself

Abstract

purposeVantictumab is a monoclonal antibody that binds to frizzled (FZD) receptors and inhibits canonical WNT signaling. This phase Ib dose escalation study enrolled patients with locally recurrent or metastatic HER2-negative breast cancer who were treated with weekly paclitaxel in combination with escalating doses of vantictumab.

methodsPatients were enrolled in dose escalation cohorts treated with weekly paclitaxel 90 mg/m

resultsForty-eight female patients with a mean age of 54 were enrolled. The majority (66.6%) received prior chemotherapy for recurrent or metastatic disease; 45.8% were hormone receptor (HR)-positive, HER2-negative and 54.2% triple-negative. The most frequent adverse events related to any study treatment were nausea (54.2%), alopecia (52.1%), fatigue (47.9%), and peripheral neuropathy (43.8%). No DLTs occurred; however, 6 patients experienced fractures outside of the DLT window. The overall response rate was 31.3% and the clinical benefit rate was 68.8%. A 6-gene WNT pathway signature showed significant association with progression-free survival (PFS) and overall survival (OS) for the biomarker high versus biomarker low groups (PFS: p = 0.029 and OS: p = 0.00045, respectively).

conclusionsThe combination of vantictumab and weekly paclitaxel was generally well tolerated with promising efficacy; however, the incidence of fractures limits future clinical development of this particular WNT inhibitor in metastatic breast cancer. CLINICAL

trial registrationClinicalTrials.gov registration: NCT01973309.

Indexed as

Breast NeoplasmsPaclitaxelAntibodies, MonoclonalAntineoplastic Combined Chemotherapy ProtocolsErb-b2 Receptor Tyrosine KinasesFemaleHumansTreatment OutcomeAntibodies, MonoclonalErb-b2 Receptor Tyrosine KinasesPaclitaxelBreast cancerFrizzled inhibitorPaclitaxelVantictumab

Identifiers

PMID32803633
PMCPMC7572714
OpenAlexW3049761941

What OpenQuestion holds

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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.