Evidence map›Paper›PMID 23092873›Full record

ArticleClinical cancer research : an official journal of the American Association for Cancer Research2012

Phase I and pharmacologic trial of cytosine arabinoside with the selective checkpoint 1 inhibitor Sch 900776 in refractory acute leukemias.

Judith E Karp, Brian M Thomas, Jacqueline M Greer, Christopher Sorge, Steven D Gore, Keith W Pratz, B Douglas Smith, Karen S Flatten, Kevin Peterson, Paula Schneider and 12 more

2 registry-linked trialsOpen access · bronzeAbstract readClinical Trial, Phase I
In one paragraph

Article in Clinical cancer research : an official journal of the American Association for Cancer Research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
5.1field-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.

NCT00907517 phase1terminatednot on this map

A Phase 1 Dose-Escalation Study of SCH 900776 in Combination With Cytarabine in Subjects With Acute Leukemias (Protocol No. P05247)

TypeinterventionalSponsorMerck Sharp & Dohme LLCRan2009 to 2011Enrolled24ConditionsMyelogenous Leukemia, Acute, Leukemia, Lymphocytic, Acute, Leukemia, Lymphoblastic, Acute, Philadelphia-Positive, Myelogenous Leukemia, Chronic, Aggressive PhaseArmsMK-8776, Cytarabine
NCT02363647 naterminatednot on this mapstarted 2015, after this paper: background citation

Personalized Cancer Therapy for Patients With Metastatic Medullary Thyroid or Metastatic Colon Cancer

TypeinterventionalSponsorIcahn School of Medicine at Mount SinaiRan2015 to 2022Enrolled10ConditionsMedullary Thyroid Cancer, Colon CancerArmsTumor Genomic Analysis
3 · Its place in the literature

Who cites it

68 citing papers in PubMed, 117 citations in OpenAlex.

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8 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

22 authors at 5 institutions in 1 country.

Judith E KarpDivision of Hematologic Malignancies, Johns Hopkins Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins Hospital, Baltimore, Maryland 21287, USA. jkarp2@jhmi.edu
Brian M Thomas
Jacqueline M Greer
Christopher Sorge
Steven D Gore
Keith W Pratz
B Douglas Smith
Karen S Flatten
Kevin Peterson
Paula Schneider
Karen Mackey
Tomoko Freshwater
Mark J Levis
Michael A McDevitt
Hetty E Carraway
Douglas E Gladstone
Margaret M Showel
Sabine Loechner
David A Parry
Jo Ann Horowitz
Randi Isaacs
Scott H Kaufmann
Sidney Kimmel Comprehensive Cancer Center · USMayo Clinic in Florida · USMerck & Co., Inc., Rahway, NJ, USA (United States) · USJohns Hopkins Hospital · USMayo Clinic · US

Funding

Translational Research Central ServicesP30CA006973 · NCI · JOHNS HOPKINS UNIVERSITY · PI Rosalie Wollett · 1985 to 2026
$208.6M
Institute for Clinical and Translational Research (UL1)UL1RR025005 · NCRR · JOHNS HOPKINS UNIVERSITY · PI FORD, DANIEL ERNEST · 2007 to 2011
$75.8M
NCI NIH HHS 2P30 CA06973-47NCI NIH HHS P30 CA006973NCRR NIH HHS UL1 RR025005
6 · The paper itself

Abstract

purposeIncorporation of cytarabine into DNA activates checkpoint kinase 1 (Chk1), which stabilizes stalled replication forks, induces S-phase slowing, and diminishes cytarabine cytotoxicity. The selective Chk1 inhibitor SCH 900776 abrogates cytarabine-induced S-phase arrest and enhances cytarabine cytotoxicity in acute leukemia cell lines and leukemic blasts in vitro. To extend these findings to the clinical setting, we have conducted a phase I study of cytarabine and SCH 900776. EXPERIMENTAL

designTwenty-four adults with relapsed and refractory acute leukemias received timed sequential, continuous infusion cytarabine 2 g/m(2) over 72 hours (667 mg/m(2)/24 hours) beginning on day 1 and again on day 10. SCH 900776 was administered as a 15- to 30-minute infusion on days 2, 3, 11, and 12. The starting dose of SCH 900776 was 10 mg/m(2)/dose.

resultsDose-limiting toxicities consisting of corrected QT interval prolongation and grade 3 palmar-plantar erythrodysesthesia occurred at 140 mg flat dosing (dose level 5, equivalent to 80 mg/m(2)). Complete remissions occurred in 8 of 24 (33%) patients, with 7 of 8 at 40 mg/m(2) or higher. SCH 900776 did not accumulate at any dose level. Marrow blasts obtained pretreatment and during therapy showed increased phosphorylation of H2Ax after SCH 900776 beginning at 40 mg/m(2), consistent with unrepaired DNA damage.

conclusionsThese data support a randomized phase II trial of cytarabine +/- SCH 900776 at a recommended flat dose of 100 mg (equivalent to 56 mg/m(2)) for adults with poor-risk leukemias. The trial (SP P05247) was registered at www.clinicaltrials.gov as NCT00907517.

Indexed as

AdultAgedAntineoplastic Combined Chemotherapy ProtocolsBone MarrowCheckpoint Kinase 1CytarabineDrug Resistance, NeoplasmFemaleHistonesHumansLeukemia, Myeloid, AcuteMaleMaximum Tolerated DoseMiddle AgedPhosphorylationProtein KinasesCheckpoint Kinase 1CHEK1 protein, humanCytarabineH2AX protein, humanHistonesMK-8776Protein KinasesPyrazolesPyrimidines

Identifiers

PMID23092873
PMCPMC3596113
OpenAlexW2141444873

What OpenQuestion holds

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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.