Evidence map›Paper›PMID 34731351›Full record

SynthesisBreast cancer research and treatment2022

Safety of systemic hormone replacement therapy in breast cancer survivors: a systematic review and meta-analysis.

Francesca Poggio, Lucia Del Mastro, Marco Bruzzone, Marcello Ceppi, Maria Grazia Razeti, Piero Fregatti, Tommaso Ruelle, Paolo Pronzato, Claudia Massarotti, Maria Alice Franzoi and 2 more

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Breast cancer research and treatment, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 3 pooled it
7.8field-weighted citation impact, top 2% 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

46 citing papers in PubMed, 3 syntheses or guidelines pooled it, 81 citations in OpenAlex.

  1. Pooled it
  2. Pregnancy after cancer: FIGO Best practice advice.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2025
    Guideline
  3. Pooled it
  4. TSG FromFood science & nutrition · 2026
    Article
  5. Article
  6. Hormone therapy use and cancer survivorship.Menopause (New York, N.Y.) · 2026
    Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. Review
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 2 institutions in 2 countries.

Francesca PoggioMedical Oncology 2, IRCCS Ospedale Policlinico San Martino, Genova, Italy.
Lucia Del MastroBreast Unit, IRCCS Ospedale Policlinico San Martino, Genova, Italy.
Marco BruzzoneClinical Epidemiology Unit, IRCCS Ospedale Policlinico San Martino, Genova, Italy.
Marcello CeppiClinical Epidemiology Unit, IRCCS Ospedale Policlinico San Martino, Genova, Italy.
Maria Grazia RazetiU.O. Clinica di Oncologia Medica, IRCCS Ospedale Policlinico San Martino, Genova, Italy.
Piero FregattiDepartment of Surgical Sciences and Integrated Diagnostic (DISC), School of Medicine, University of Genova, Genova, Italy.
Tommaso RuelleMedical Oncology 2, IRCCS Ospedale Policlinico San Martino, Genova, Italy.
Paolo PronzatoMedical Oncology 2, IRCCS Ospedale Policlinico San Martino, Genova, Italy.
Claudia MassarottiPhysiopathology of Human Reproduction Unit, IRCCS Ospedale Policlinico San Martino, Genova, Italy.
Maria Alice FranzoiDepartment of Medical Oncology, Gustave Roussy, Villejuif, France.
Matteo LambertiniDepartment of Internal Medicine and Medical Specialties (Di.M.I.), School of Medicine, University of Genova, Genova, Italy. matteo.lambertini@unige.it.ORCID http://orcid.org/0000-0003-1797-5296
Marco TagliamentoMedical Oncology 2, IRCCS Ospedale Policlinico San Martino, Genova, Italy.
Ospedale Policlinico San Martino · ITInstitut Gustave Roussy · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeSymptoms of treatment-induced menopause negatively affect quality of life and adherence to endocrine therapy of breast cancer (BC) survivors. Nevertheless, the use of systemic hormone replacement therapy (HRT) to mitigate these symptoms may be associated with an increased risk of disease recurrence in these patients. This systematic review and meta-analysis aimed to assess the safety of systemic HRT on risk of disease recurrence in BC survivors.

methodsA systematic search of PubMed up to April 20, 2021 was conducted to identify randomized controlled trials (RCTs) that investigated the risk of disease recurrence with the use of HRT in BC survivors. A random-effect model was applied to calculate the risk of recurrence, reported as pooled hazard ratio (HR) with 95% confidence intervals (CI). A subgroup analysis was performed to estimate the risk of recurrence according to hormone receptor status.

resultsFour RCTs were included in the meta-analysis (n = 4050 patients). Overall, 2022 patients were randomized to receive HRT (estrogen/progestogen combination or tibolone) and 2023 to the control group with placebo or no HRT. HRT significantly increased the risk of BC recurrence compared to placebo (HR 1.46, 95% CI 1.12-1.91, p = 0.006). At the subgroup analysis, the risk of BC recurrence with the use of HRT was significantly increased in patients with hormone receptor-positive disease (HR 1.8, 95% CI 1.15-2.82, p = 0.010) but not in those with hormone receptor-negative tumors (HR 1.19, 95% CI 0.80-1.77, p = 0.390).

conclusionUse of HRT was associated with a detrimental prognostic effect in BC survivors, particularly in those with hormone receptor-positive disease. Alternative interventions to mitigate menopause-related symptoms should be proposed.

Indexed as

Breast NeoplasmsCancer SurvivorsEstrogen Replacement TherapyFemaleHormone Replacement TherapyHumansNeoplasm Recurrence, LocalRandomized Controlled Trials as TopicSurvivorsBreast cancerChemotherapyEndocrine therapyHormone replacement therapyIatrogenic menopause

Identifiers

PMID34731351
OpenAlexW3208548481

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.