Evidence map›Paper›PMID 23053254›Full record

Trial reportCancer chemotherapy and pharmacology2013

Pharmacokinetic study of omacetaxine mepesuccinate administered subcutaneously to patients with advanced solid and hematologic tumors.

John Nemunaitis, Alain Mita, Joe Stephenson, Monica M Mita, John Sarantopoulos, Swami Padmanabhan-Iyer, Nisha Nanda, Lyon Gleich, Annie-Claude Benichou, Adam Craig

Open access · hybridAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in Cancer chemotherapy and pharmacology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

27 citing papers in PubMed, 50 citations in OpenAlex.

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  10. Exploiting Protein Translation Dependence in Multiple Myeloma with Omacetaxine-Based Therapy.Clinical cancer research : an official journal of the American Association for Cancer Research · 2021
    Observational
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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

10 authors at 5 institutions in 2 countries.

John NemunaitisMary Crowley Cancer Research Centers, Dallas, TX 75201, USA. jnemunaitis@mcmrc.com
Alain Mita
Joe Stephenson
Monica M Mita
John Sarantopoulos
Swami Padmanabhan-Iyer
Nisha Nanda
Lyon Gleich
Annie-Claude Benichou
Adam Craig
The University of Texas Health Science Center at Houston · USMedpace (United States) · USMary Crowley Cancer Research Center · USNeurology Centers of the Carolinas · USStragen (France) · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeOmacetaxine mepesuccinate is a first-in-class cephalotaxine demonstrating clinical activity in chronic myeloid leukemia. A subcutaneous (SC) formulation demonstrated efficacy and safety in phase 1/2 trials in patients previously treated with ≥1 tyrosine kinase inhibitor. This study assessed pharmacokinetics and safety of SC omacetaxine in patients with advanced cancers.

methodsOmacetaxine 1.25 mg/m(2) SC was administered BID, days 1-14 every 28 days for 2 cycles, until disease progression or unacceptable toxicity. Blood and urine were collected to measure omacetaxine concentrations and inactive metabolites. Adverse events, including QT interval prolongation, were recorded. Tumor response was assessed at cycle 2 completion.

resultsPharmacokinetic parameters were estimated from cycle 1, day 1 data in 21 patients with solid tumors or hematologic malignancies and cycle 1, day 11 data in 10 patients. Omacetaxine was rapidly absorbed, with mean peak plasma concentrations observed within 1 h, and widely distributed, as evidenced by an apparent volume of distribution of 126.8 L/m(2). Plasma concentration versus time data demonstrated biexponential decay; mean steady-state terminal half-life was 7 h. Concentrations of inactive metabolites 4'-DMHHT and cephalotaxine were approximately 10 % of omacetaxine and undetectable in most patients, respectively. Urinary excretion of unchanged omacetaxine accounted for <15 % of the dose. Grade 3/4 drug-related adverse events included thrombocytopenia (48 %) and neutropenia (33 %). Two grade 2 increases in QTc interval (>470 ms) were observed and were not correlated with omacetaxine plasma concentration. No objective responses were observed.

conclusionsOmacetaxine is well absorbed after SC administration. Therapeutic plasma concentrations were achieved with 1.25 mg/m(2) BID, supporting clinical development of this dose and schedule.

Indexed as

AdultAgedAntineoplastic Agents, PhytogenicFemaleHalf-LifeHarringtoninesHematologic NeoplasmsHomoharringtonineHumansInjections, SubcutaneousLong QT SyndromeMaleMiddle AgedNeoplasmsNeutropeniaThrombocytopenia4'-desmethylhomoharringtonineAntineoplastic Agents, PhytogenicHarringtoninesHomoharringtonine

Identifiers

PMID23053254
PMCPMC3535355
OpenAlexW1985773289

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Registered trials

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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.