Evidence map›Paper›PMID 25743274›Full record

Observational studyJournal of cancer research and clinical oncology2015

Adherence, exposure and patients' experiences with the use of erlotinib in non-small cell lung cancer.

Lonneke Timmers, Christel C L M Boons, J Moes-Ten Hove, Egbert F Smit, Peter M van de Ven, Joachim G Aerts, Eleonora L Swart, Epie Boven, Jacqueline G Hugtenburg

Open access · hybridAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Journal of cancer research and clinical oncology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. From optimistic to overwhelmed: exploring health beliefs and barriers to oral anticancer medication adherence among cancer survivors.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2026
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  4. Article
  5. Observational
  6. The relationship between medication beliefs, patient activation, and self-rated health in patients taking oral anticancer agents.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2024
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  7. Article
  8. Review
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  12. Review
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  15. High adherence of patients with multiple myeloma who receive treatment with immunomodulatory drugs (IMIDS) in hematology/oncology group practices in Germany.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2019
    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

9 authors at 2 institutions in 1 country.

Lonneke TimmersDepartment of Clinical Pharmacology and Pharmacy, VU University Medical Center, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands, L.Timmers@vumc.nl.
Christel C L M Boons
J Moes-Ten Hove
Egbert F Smit
Peter M van de Ven
Joachim G Aerts
Eleonora L Swart
Epie Boven
Jacqueline G Hugtenburg
Amsterdam UMC Location VUmc · NLAmphia Ziekenhuis · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeErlotinib is an orally administered tyrosine kinase inhibitor used for treatment of non-small cell lung cancer. Understanding actual use of medication is essential for optimizing treatment conditions.

methodsIn this multicentre prospective observational study, patients starting erlotinib treatment were followed for 4 months. Adherence was assessed using a medication event monitoring system (MEMS). Area under the curve (AUC) was determined after 1, 2 and 4 months. Before start and at monthly intervals, patients filled out questionnaires about attitude towards medication and disease, quality of life, symptoms and use in daily practice.

resultsSixty-two patients (median age 63.5 years, 53 % male) were included of whom 15 were still on treatment after 4 months. MEMS data of 55 patients revealed a mean adherence of 96.8 ± 4.0 %. Over one-third of patients had an adherence rate <95 %. At 1 month, 21 % of patients did not always correctly take erlotinib without food. Associated risk factors were older age, suboptimal adherence, ocular symptoms and stomatitis (all p < 0.05). After 1 month of treatment, fatigue (91 %) and rash (86 %) were the most common symptoms reported. AUCss of erlotinib was higher in patients with rash and patients with moderate-severe anorexia (both p < 0.05).

conclusionThough adherence to erlotinib treatment is generally high, non-adherence might be an issue in a considerable number of patients. To support optimal erlotinib intake, clinicians need to take adequate measures to ameliorate symptoms and to address adherence and correct intake without food. Especially older patients and those who experience stomatitis may need extra attention.

Indexed as

Drug MonitoringAgedAged, 80 and overAttitude to HealthCarcinoma, Non-Small-Cell LungErlotinib HydrochlorideFemaleHumansLung NeoplasmsMaleMiddle AgedProtein Kinase InhibitorsQuality of LifeQuinazolinesErlotinib HydrochlorideProtein Kinase InhibitorsQuinazolines

Identifiers

PMID25743274
PMCPMC4469769
OpenAlexW2004198091

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.