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TNF inhibitor thera...
TNF inhibitor therapy and risk of breast cancer recurrence in patients with rheumatoid arthritis : a nationwide cohort study.
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- Raaschou, Pauline (författare)
- Karolinska Institutet
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- Frisell, Thomas (författare)
- Karolinska Institutet
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- Askling, Johan (författare)
- Karolinska Institutet
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- Baecklund, Eva, 1956- (bidragsgivare)
- Uppsala universitet,Reumatologi
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(creator_code:org_t)
- 2014-08-08
- 2015
- Engelska.
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Ingår i: Annals of the Rheumatic Diseases. - : BMJ. - 0003-4967 .- 1468-2060. ; 74:12, s. 2137-2143
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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http://kipublication...
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Abstract
Ämnesord
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- OBJECTIVE: To investigate the risk of breast cancer recurrence in rheumatoid arthritis (RA)-patients with tumour necrosis factor inhibitor (TNFi) treatment and a history of breast cancer, taking several breast cancer, comorbidity and RA-related prognostic factors into account.METHODS: 143 female TNFi-treated patients (1999-2010) with RA and a history of breast cancer before start of TNFi were identified through register linkages, and matched 1:1 from a cohort of 1598 comparable biologics-naive individuals. 120 TNFi-treated and 120 matched biologics-naive individuals with a history of equally recent/distant breast cancer met the eligibility criteria and comprised the final study population. The primary outcome was first recurrence of breast cancer. Through register-linkages and chart review, individuals were followed until 2011. HRs for recurrence were calculated using Cox regression.RESULTS: The median time from breast cancer diagnosis until TNFi-treatment/start of follow-up was 9.4 years. Modest differences in breast cancer characteristics and/or treatment among TNFi-treated and biologics-naive individuals were noted at time of breast cancer diagnosis. Median follow-up from TNFi start was 4.9 years (4.6 years among biologics-naive). Among the TNFi-treated, 9 developed a breast cancer recurrence (crude incidence rate 15/1000 person-years) during follow-up, compared with 9 among the matched biologics-naive (16/1000 person-years). The adjusted corresponding HR was 1.1 (95% CI 0.4 to 2.8).CONCLUSIONS: Among patients with RA and a history of breast cancer, those who started TNFi-treatment did not experience more breast cancer recurrences than patients with RA treated otherwise. The generalisability of our findings to women with a very recent or a poor prognosis of breast cancer remains unknown.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Reumatologi och inflammation (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Rheumatology and Autoimmunity (hsv//eng)
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- ref (ämneskategori)
- art (ämneskategori)
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