Evidence map›Paper›PMID 21697017›Full record

Trial reportClinical breast cancer2011

A phase II study of sagopilone (ZK 219477; ZK-EPO) in patients with breast cancer and brain metastases.

Rachel A Freedman, Elizabeth Bullitt, Lixian Sun, Rebecca Gelman, Gordon Harris, Jennifer A Ligibel, Ian E Krop, Ann H Partridge, Emily Eisenberg, Eric P Winer and 1 more

Abstract readClinical Trial, Phase II
In one paragraph

Trial report in Clinical breast cancer, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Trial
  4. Article
  5. Review
  6. Review
  7. Alterations in Pericyte Subpopulations Are Associated with Elevated Blood-Tumor Barrier Permeability in Experimental Brain Metastasis of Breast Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2016
    Article
  8. Targeted Therapies for Brain Metastases from Breast Cancer.International journal of molecular sciences · 2016
    Review
  9. Cancer and the metastatic substrate.Ecancermedicalscience · 2016
    Review
  10. Review
  11. CNS metastases in breast cancer: old challenge, new frontiers.Clinical cancer research : an official journal of the American Association for Cancer Research · 2013
    Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Treatment of Breast Cancer Brain Metastases.Current breast cancer reports · 2012
    Article
  18. 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

11 authors.

Rachel A FreedmanDepartment of Medical Oncology, Dana-Farber Cancer Institute, 44 Binney Street, Harvard Medical School, Boston, MA 02115, USA. rafreedman@partners.org
Elizabeth Bullitt
Lixian Sun
Rebecca Gelman
Gordon Harris
Jennifer A Ligibel
Ian E Krop
Ann H Partridge
Emily Eisenberg
Eric P Winer
Nancy U Lin

Funding

VectorP30CA006516 · NCI · DANA-FARBER CANCER INSTITUTE · PI A. Heather Eliassen · 1985 to 2026
$330.6M
Variation in Receptor Tyrosine Kinases and Breast Cancer RiskP50CA089393 · NCI · DANA-FARBER CANCER INSTITUTE · PI HARRIS, LYNDSAY NORINE · 2000 to 2009
$28.8M
3D Cerebral Vessel Location for Surgical PlanningR01EB000219 · NIBIB · UNIV OF NORTH CAROLINA CHAPEL HILL · PI BULLITT, ELIZABETH · 2002 to 2008
$3.0M
Noninvasive assessment of tumor malignancyR01CA124608 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI BULLITT, ELIZABETH · 2007 to 2010
$1.8M
NCI NIH HHS CA006516NCI NIH HHS CA89393NCI NIH HHS P30 CA006516NCI NIH HHS P50 CA089393NCI NIH HHS R01 CA124608NIBIB NIH HHS R01 EB000219
6 · The paper itself

Abstract

unlabelledTreatments for women with recurrent brain metastases from breast cancer are limited. In this phase II study,we administered sagopilone to patients with breast cancer and brain metastases. We observed modest activity with a central nervous system objective response rate of 13.3%; however, median PFS was disappointing. Further studies should focus on other agents to treat this challenging clinical problem.

backgroundPatients with progressive metastatic breast cancer to the central nervous system (CNS) have limited treatment options. PATIENTS AND

methodsWe conducted a phase II study of sagopilone, an epothilone B analogue that crosses the blood-brain barrier, in patients with breast cancer brain metastases. Women were treated with 16 mg/m(2) or 22 mg/m(2) intravenously every 21 days. The primary endpoint was CNS objective response rate (ORR). Secondary endpoints included toxicity, progression-free survival (PFS), and overall survival (OS). Using modified, high-resolution magnetic resonance angiography (MRA), we also evaluated changes in vessel tortuosity with treatment.

resultsFifteen women were enrolled; all had progressive CNS disease despite whole-brain radiotherapy. Two patients achieved a partial response (ORR, 13.3%) and remained in the study for 6 cycles. Responses were not associated with normalization of tumor-associated vessels on correlative imaging studies. Median PFS and OS were 1.4 months and 5.3 months, respectively. The most common grade 3 toxicities were lymphopenia and fatigue. Enrollment was stopped prematurely because of limited observed activity and slow accrual.

conclusionsSagopilone was associated with modest CNS activity in patients with breast cancer; however median PFS was disappointing. Further studies should examine other potentially active agents and/or combinations for this challenging clinical problem.

Indexed as

AdultAgedAntineoplastic AgentsBenzothiazolesBlood-Brain BarrierBrain NeoplasmsBreast NeoplasmsDisease-Free SurvivalEpothilonesFemaleHumansInfusions, IntravenousMiddle AgedNeoplasm MetastasisNeoplasm StagingTreatment OutcomeAntineoplastic AgentsBenzothiazolesEpothilonessagopilone

Identifiers

PMID21697017
PMCPMC3773692

What OpenQuestion holds

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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.