Evidence map›Paper›PMID 31113841›Full record

Trial reportClinical cancer research : an official journal of the American Association for Cancer Research2019

Pharmacodynamic and Clinical Results from a Phase I/II Study of the HSP90 Inhibitor Onalespib in Combination with Abiraterone Acetate in Prostate Cancer.

Susan Slovin, Syed Hussain, Fred Saad, Jorge Garcia, Joel Picus, Roberta Ferraldeschi, Mateus Crespo, Penelope Flohr, Ruth Riisnaes, Chihche Lin and 4 more

Open access · bronzeAbstract readClinical Trial, Phase IClinical Trial, Phase IIMulticenter Study
In one paragraph

Trial report in Clinical cancer research : an official journal of the American Association for Cancer Research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

24 citing papers in PubMed, 41 citations in OpenAlex.

  1. Review
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  6. CRM1 regulates androgen receptor stability and impacts DNA repair pathways in prostate cancer, independent of the androgen receptor.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
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  7. Article
  8. Review
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  18. Frontiers in oncology · 2022
    Article
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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

14 authors at 8 institutions in 3 countries.

Susan SlovinMemorial Sloan-Kettering Cancer Center, New York, New York.
Syed HussainThe Clatterbridge Cancer Centre NHS Foundation Trust, Wirral, United Kingdom.
Fred SaadCentre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada.
Jorge GarciaCleveland Clinic, Cleveland, Ohio.
Joel PicusWashington University School of Medicine, St. Louis, Missouri.ORCID 0000-0002-4038-936X
Roberta FerraldeschiAstex Therapeutics Ltd., Cambridge, United Kingdom.
Mateus CrespoThe Institute of Cancer Research and Royal Marsden Hospital, London, United Kingdom.
Penelope FlohrThe Institute of Cancer Research and Royal Marsden Hospital, London, United Kingdom.
Ruth RiisnaesThe Institute of Cancer Research and Royal Marsden Hospital, London, United Kingdom.
Chihche LinAstex Pharmaceuticals, Inc., Pleasanton, California.
Harold KeerAstex Pharmaceuticals, Inc., Pleasanton, California.
Aram OganesianAstex Pharmaceuticals, Inc., Pleasanton, California.
Paul WorkmanThe Institute of Cancer Research and Royal Marsden Hospital, London, United Kingdom.ORCID 0000-0003-1659-3034
Johann de BonoThe Institute of Cancer Research and Royal Marsden Hospital, London, United Kingdom. johann.de-bono@icr.ac.uk.
Royal Marsden Hospital · GBPlex Pharmaceuticals (United States) · USApeX Therapeutics (United States) · USCentre Hospitalier de l’Université de Montréal · CAClatterbridge Cancer Centre NHS Foundation Trust · GBCleveland Clinic · USMemorial Sloan Kettering Cancer Center · USWashington University in St. Louis · US

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Hongbiao Carl Lekaye · 1985 to 2026
$347.4M
Cancer Research UK 22897NCI NIH HHS P30 CA008748
6 · The paper itself

Abstract

purposeOnalespib is a potent, fragment-derived second-generation HSP90 inhibitor with preclinical activity in castration-resistant prostate cancer (CPRC) models. This phase I/II trial evaluated onalespib in combination with abiraterone acetate (AA) and either prednisone or prednisolone (P) in men with CRPC progressing on AA/P. PATIENTS AND

methodsPatients with progressing CRPC were randomly assigned to receive 1 of 2 regimens of onalespib combined with AA/P. Onalespib was administered as intravenous infusion starting at 220 mg/m

resultsForty-eight patients were treated with onalespib in combination with AA/P. The most common ≥grade 3 toxicities related to onalespib included diarrhea (21%) and fatigue (13%). Diarrhea was dose limiting at 260 and 160 mg/m

conclusionsOnalespib in combination with AA/P showed mild evidence of some biological effect; however, this effect did not translate into clinical activity, hence further exploration of this combination was not justified.

Indexed as

Abiraterone AcetateAgedAged, 80 and overAntineoplastic Combined Chemotherapy ProtocolsBenzamidesHSP90 Heat-Shock ProteinsHumansIsoindolesMaleMiddle AgedPatient SafetyPrednisoloneProstatic Neoplasms, Castration-ResistantSurvival RateTissue DistributionTreatment Outcome(2,4-dihydroxy-5-isopropylphenyl)-(5-(4-methylpiperazin-1-ylmethyl)-1,3-dihydroisoindol-2-yl)methanoneAbiraterone AcetateBenzamidesHSP90 Heat-Shock ProteinsIsoindolesPrednisolone

Identifiers

PMID31113841
PMCPMC9081826
OpenAlexW2946829725

What OpenQuestion holds

Textmetadata
LicenceTDM
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.