Evidence map›Paper›PMID 30032359›Full record

ArticleOsteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA2018

The tamoxifen paradox-influence of adjuvant tamoxifen on fracture risk in pre- and postmenopausal women with breast cancer.

I Kyvernitakis, K Kostev, P Hadji

Abstract read
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In one paragraph

Article in Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.7field-weighted citation impact, top 12% 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

16 citing papers in PubMed, 43 citations in OpenAlex.

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  2. Differential fracture risk in breast cancer patients based on endocrine therapy and age: a nationwide cohort study.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2025
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  6. Bone Effects of Anti-Cancer Treatments in 2024.Calcified tissue international · 2025
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  9. Early-Onset Osteoporosis.Calcified tissue international · 2022
    Review
  10. Article
  11. Review
  12. Regulation of aromatase in cancer.Molecular and cellular biochemistry · 2021
    Review
  13. Review
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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

3 authors at 2 institutions in 1 country.

I KyvernitakisDepartment of Obstetrics and Gynecology, Buergerhospital and Clementine Kinderhospital Frankfurt, Nibelungenallee 37-41, 60318, Frankfurt, Germany. janniskyvernitakis@gmail.com.ORCID http://orcid.org/0000-0002-8721-5818
K KostevEpidemiology, IQVIA, Frankfurt, Germany.
P HadjiFaculty of Medicine, Philipps-University of Marburg, Marburg, Germany.
Goethe University Frankfurt · DEPhilipps University of Marburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Our data demonstrate that tamoxifen does not reduce fracture risk. Close surveillance is necessary to prevent bone loss in premenopausal women with breast cancer upon treatment initiation.

introductionEndocrine treatment of breast cancer may interfere with bone turnover and influence fracture risk.

methodsOut of a cohort of almost 5 million patients in total, we identified 5520 women between 18 and 90 years of age with breast cancer receiving tamoxifen, matched them with 5520 healthy controls using the Disease Analyzer Database, and investigated the fracture risk.

resultsWe found a cumulative incidence of fractures of 6.3% in patients aged between 18 and 50 years (n = 3634) treated with tamoxifen versus a cumulative incidence of 3.6% in the control group (p < 0.001). As such, the risk of fracture was 75% higher for patients receiving tamoxifen than that for healthy controls (HR 1.75; 95% CI 1.25-2.48). With regard to patients aged between 55 and 90 years (n = 7406), the cumulative incidence of fractures in patients treated with tamoxifen was 10.1% compared to 9.3% in the control group (p = 0.740), i.e., there was no significant difference between the two groups (HR 0.97; 95% CI 0.81-1.16).

conclusionsCompared to healthy controls, premenopausal women with breast cancer treated with tamoxifen showed an increased risk of fracture, while postmenopausal women on tamoxifen did not show any risk reduction.

Indexed as

AdolescentAdultAgedAged, 80 and overAge FactorsAntineoplastic Agents, HormonalBreast NeoplasmsChemotherapy, AdjuvantDatabases, FactualFemaleGermanyHumansIncidenceMiddle AgedOsteoporotic FracturesPostmenopauseAntineoplastic Agents, HormonalTamoxifenBreast cancerFracture riskMenopauseOsteoporosisTamoxifen

Identifiers

PMID30032359
OpenAlexW2885003855

What OpenQuestion holds

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Read underepoch 390

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.