Evidence map›Paper›PMID 21472713›Full record

Trial reportCancer2011

Phase 1b-2a study to reverse platinum resistance through use of a hypomethylating agent, azacitidine, in patients with platinum-resistant or platinum-refractory epithelial ovarian cancer.

Siqing Fu, Wei Hu, Revathy Iyer, John J Kavanagh, Robert L Coleman, Charles F Levenback, Anil K Sood, Judith K Wolf, David M Gershenson, Maurie Markman and 3 more

Registry-linked trialOpen access · bronzeAbstract readClinical Trial, Phase IClinical Trial, Phase II
In one paragraph

Trial report in Cancer, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03941496 (Phase 1b/2a Safety and Immunogenicity of the DNMT Inhibitor Azacitidine During Anti-Tuberculosis Therapy), which is not on this map. Cited by 100 papers.

0numbers the graph read from it
0cells of the map it votes in
100citing papers in PubMed
4.9field-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.

NCT03941496 phase1 / phase2withdrawnnot on this mapstarted 2022, after this paper: background citation

Phase 1b/2a Safety and Immunogenicity of the DNMT Inhibitor Azacitidine During Anti-Tuberculosis Therapy

TypeinterventionalSponsorAndrew DinardoRan2022 to 2023Enrolled0ConditionsTuberculosis, PulmonaryArmsAzacitidine Injection
3 · Its place in the literature

Who cites it

100 citing papers in PubMed, 182 citations in OpenAlex.

  1. A Randomized Phase II Trial of Epigenetic Priming with Guadecitabine and Carboplatin in Platinum-resistant, Recurrent Ovarian Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2020
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  16. Getting the right combination to break the epigenetic code.Nature reviews. Clinical oncology · 2025
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40 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

13 authors at 1 institution in 1 country.

Siqing FuDepartment of Investigational Cancer Therapeutics, The University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030, USA. siqingfu@mdanderson.org
Wei Hu
Revathy Iyer
John J Kavanagh
Robert L Coleman
Charles F Levenback
Anil K Sood
Judith K Wolf
David M Gershenson
Maurie Markman
Bryan T Hennessy
Razelle Kurzrock
Robert C Bast
The University of Texas MD Anderson Cancer Center · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
UNIVERSITY OF TEXAS MD ANDERSON SPORE IN OVARIAN CANCERP50CA083639 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI BAST, ROBERT C · 1999 to 2015
$33.0M
NCI NIH HHS CA16672NCI NIH HHS P30 CA016672NCI NIH HHS P50 CA083639
6 · The paper itself

Abstract

backgroundSequential treatment with azacitidine can induce re-expression of epigenetically silenced genes through genomic DNA hypomethylation and reverse carboplatin resistance of epithelial ovarian cancer cells. A phase 1b-2a clinical trial of this sequential combination of azacitidine and carboplatin was initiated in patients with platinum-resistant or platinum-refractory epithelial ovarian cancer.

methodsPatients with pathologically confirmed intermediate-grade or high-grade epithelial ovarian cancer who developed disease progression within 6 months (resistant disease, n = 18 patients) or during a platinum-based therapy (refractory disease, n = 12 patients) were eligible. All patients had measurable disease.

resultsThirty patients received a total of 163 cycles of treatment. This regimen produced 1 complete response, 3 partial responses (overall response rate [ORR], 13.8%), and 10 cases of stable disease among 29 evaluable patients. For those patients who achieved clinical benefits, the median duration of the treatment was 7.5 months. The median progression-free survival (PFS) and overall survival (OS) for all patients were 3.7 months and 14 months, respectively. Patients with platinum-resistant disease achieved an ORR of 22%, with a median PFS of 5.6 months and a median OS of 23 months. The predominant toxicities were fatigue and myelosuppression. Correlative studies indicated that DR4 methylation in peripheral blood leukocytes was decreased during treatment in 3 of 4 objective responders (75%), but in only 5 of 13 nonresponders (38%).

conclusionsTo the authors' knowledge, the results of the current study provide the first clinical evidence that a hypomethylating agent may partially reverse platinum resistance in patients with ovarian cancer. Further clinical evaluation of hypomethylating agents in combination with carboplatin is warranted.

Indexed as

Drug Resistance, NeoplasmAdultAgedAntimetabolites, AntineoplasticAntineoplastic Combined Chemotherapy ProtocolsAzacitidineCarboplatinCarcinoma, Ovarian EpithelialDisease-Free SurvivalDNA MethylationDrug Administration ScheduleFemaleHumansMiddle AgedNeoplasms, Glandular and EpithelialOvarian NeoplasmsAntimetabolites, AntineoplasticAzacitidineCarboplatin

Identifiers

PMID21472713
PMCPMC3062960
OpenAlexW1997981312

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.