Evidence map›Paper›PMID 20142325›Full record

ArticleBMJ (Clinical research ed.)2010

Selective serotonin reuptake inhibitors and breast cancer mortality in women receiving tamoxifen: a population based cohort study.

Catherine M Kelly, David N Juurlink, Tara Gomes, Minh Duong-Hua, Kathleen I Pritchard, Peter C Austin, Lawrence F Paszat

Abstract read
In one paragraph

Article in BMJ (Clinical research ed.), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 130 papers, 14 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
130citing papers in PubMed, 14 pooled it
–field-weighted citation impact
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

130 citing papers in PubMed, 14 syntheses or guidelines pooled it.

  1. Pharmacological interactions between psychotropic drugs and anticancer treatments: implications for clinical practice.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2026
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  6. Antidepressants for the treatment of depression in people with cancer.The Cochrane database of systematic reviews · 2018
    Pooled it
  7. Survivorship, Version 2.2017, NCCN Clinical Practice Guidelines in Oncology.Journal of the National Comprehensive Cancer Network : JNCCN · 2017
    Guideline
  8. Antidepressants for the treatment of depression in people with cancer.The Cochrane database of systematic reviews · 2015
    Pooled it
  9. How long do the effects of acupuncture on hot flashes persist in cancer patients?Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2014
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  12. Exercise effects on depressive symptoms in cancer survivors: a systematic review and meta-analysis.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2012
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  16. Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2020
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70 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Catherine M KellyDepartment of Medicine, Sunnybrook Health Sciences Centre, Toronto, Canada.
David N Juurlink
Tara Gomes
Minh Duong-Hua
Kathleen I Pritchard
Peter C Austin
Lawrence F Paszat

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

objectiveTo characterise whether some selective serotonin reuptake inhibitor (SSRI) antidepressants reduce tamoxifen's effectiveness by inhibiting its bioactivation by cytochrome P450 2D6 (CYP2D6).

designPopulation based cohort study.

participantsWomen living in Ontario aged 66 years or older treated with tamoxifen for breast cancer between 1993 and 2005 who had overlapping treatment with a single SSRI.

main outcome measuresRisk of death from breast cancer after completion of tamoxifen treatment, as a function of the proportion of time on tamoxifen during which each SSRI had been co-prescribed.

resultsOf 2430 women treated with tamoxifen and a single SSRI, 374 (15.4%) died of breast cancer during follow-up (mean follow-up 2.38 years, SD 2.59). After adjustment for age, duration of tamoxifen treatment, and other potential confounders, absolute increases of 25%, 50%, and 75% in the proportion of time on tamoxifen with overlapping use of paroxetine (an irreversible inhibitor of CYP2D6) were associated with 24%, 54%, and 91% increases in the risk of death from breast cancer, respectively (P<0.05 for each comparison). By contrast, no such risk was seen with other antidepressants. We estimate that use of paroxetine for 41% of tamoxifen treatment (the median overlap in our sample) would result in one additional breast cancer death within five years of cessation of tamoxifen for every 19.7 (95% confidence interval 12.5 to 46.3) patients so treated; the risk with more extensive overlap would be greater.

conclusionParoxetine use during tamoxifen treatment is associated with an increased risk of death from breast cancer, supporting the hypothesis that paroxetine can reduce or abolish the benefit of tamoxifen in women with breast cancer.

Indexed as

AgedAged, 80 and overAntidepressive Agents, Second-GenerationAntineoplastic Agents, HormonalBreast NeoplasmsCohort StudiesDepressive DisorderDrug InteractionsFemaleHumansOntarioParoxetineRisk FactorsSelective Serotonin Reuptake InhibitorsTamoxifenAntidepressive Agents, Second-GenerationAntineoplastic Agents, HormonalParoxetineSelective Serotonin Reuptake InhibitorsTamoxifen

Identifiers

PMID20142325
PMCPMC2817754

What OpenQuestion holds

Textmetadata
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.