Evidence map›Paper›PMID 29998189›Full record

ArticleAddictive behaviors reports2018

The association between self-reported varenicline adherence and varenicline blood levels in a sample of cancer patients receiving treatment for tobacco dependence.

Grace Crawford, Nancy Jao, Annie R Peng, Frank Leone, Ravi Kalhan, Rachel F Tyndale, Jessica Weisbrot, Brian Hitsman, Robert Schnoll

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Addictive behaviors reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.0field-weighted citation impact, top 25% 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

5 citing papers in PubMed, 6 citations in OpenAlex.

  1. A qualitative study of attitudes and perceptions of smoking cessation medication among patients with cancer.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2024
    Trial
  2. Trial
  3. Trial
  4. Stability of Varenicline Concentration in Saliva Over 21 Days at Three Storage Temperatures.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2022
    Article
  5. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 2 countries.

Grace CrawfordDepartment of Psychiatry, Perelman School of Medicine, University of Pennsylvania, 3535 Market Street, 4th Floor, Philadelphia, PA 19104, USA.
Nancy JaoDepartment of Preventive Medicine, Feinberg School of Medicine, Northwestern University, 680 North Lake Shore Drive, Suite 1400, Chicago, IL 60611, USA.
Annie R PengDepartment of Pharmacology & Toxicology, University of Toronto, 1 King's College Circle, Toronto, ON M5S-1A8, Canada.
Frank LeoneDepartment of Medicine, Perelman School of Medicine, University of Pennsylvania, 51 N. 39th Street, Suite 251 Wright-Saunders Building, Philadelphia, PA 19104, USA.
Ravi KalhanDepartment of Medicine, Feinberg School of Medicine, Northwestern University, 676 North Saint Clair Street, Suite 1400, Chicago, IL 60611, USA.
Rachel F TyndaleDepartment of Pharmacology & Toxicology, University of Toronto, 1 King's College Circle, Toronto, ON M5S-1A8, Canada.
Jessica WeisbrotDepartment of Psychiatry, Perelman School of Medicine, University of Pennsylvania, 3535 Market Street, 4th Floor, Philadelphia, PA 19104, USA.
Brian HitsmanDepartment of Preventive Medicine, Feinberg School of Medicine, Northwestern University, 680 North Lake Shore Drive, Suite 1400, Chicago, IL 60611, USA.
Robert SchnollDepartment of Psychiatry and Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, 3535 Market Street, Philadelphia, PA 19104, USA.
University of Pennsylvania · USNorthwestern University · USCentre for Addiction and Mental Health · CAUniversity of Toronto · CA

Funding

Extended Duration Varenicline for Smoking Among Cancer Patients: A Clinical TrialR01CA165001 · NCI · UNIVERSITY OF PENNSYLVANIA · PI SCHNOLL, ROBERT ADAM · 2012 to 2016
$3.0M
NCI NIH HHS R01 CA165001
6 · The paper itself

Abstract

introductionThe degree to which smokers quit successfully with varenicline is strongly associated with their adherence to the medication regimen. Thus, measuring varenicline adherence to identify smokers needing additional intervention is a priority. Few studies, however, have examined the validity of self-reported varenicline adherence, using a biological assessment of adherence as a reference. No study has examined this issue among cancer patients trying to quit smoking, who may show unique patterns of adherence given their medical comorbidity.

methodsThis study used data from 76 cancer patients who received varenicline and provided self-reported varenicline adherence data (pill count) and a blood sample to determine varenicline metabolites 4 weeks after initiating varenicline.

resultsReceiver operating characteristic (ROC) curve analyses of plasma varenicline levels showed that 4 ng/ml was the optimal cut-point for differentiating adherence with significant (

conclusionsUsing the 4 ng/ml cut-point, this study suggests validity of short-term self-reported varenicline adherence among cancer patients undergoing tobacco dependence treatment in contrast to studies in the general population, which supported 12-week pill count.

Indexed as

AdherenceSmoking cessationTobacco dependenceVarenicline

Identifiers

PMID29998189
PMCPMC6037908
OpenAlexW2810162506

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.