| アブストラクト | BACKGROUND: Hydroxychloroquine and chloroquine may reduce the risk of cancer as they inhibit autophagy, in particular, in people with connective tissue diseases. METHODS: The hazard ratios of cancers, metastases, and death were assessed in adults with connective tissue diseases prescribed hydroxychloroquine/chloroquine for at least 1 year in comparison with unexposed individuals with the same underlying conditions. A competing risk survival regression analysis was performed. Data were extracted from the Health Improvement Network UK primary care database. RESULTS: Eight thousand nine hundred and ninety-nine individuals exposed to hydroxychloroquine (98.6%) or chloroquine (1.4%) and 24,118 unexposed individuals were included in the study (median age: 56 [45-66] years, women: 76.8%). When compared to the unexposed group, individuals exposed to hydroxychloroquine/chloroquine were not at lower risk of non-skin cancers (adjusted sub-distribution hazard ratio [sHR]: 1.04 [0.92-1.18], p=0.54), hematological malignancies (adjusted sHR: 1.00 [0.73-1.38], p=0.99), or skin cancers (adjusted sHR: 0.92 [0.78-1.07], p=0.26). The risk of metastasis was not significantly different between the two groups. However, it was significantly lower during the exposure period when compared with the unexposed (adjusted sHR: 0.64 [0.44-0.95] for the overall population and 0.61 [0.38-1.00] for those diagnosed with incident cancers). The risk of death was also significantly lower in those exposed to hydroxychloroquine/chloroquine (adjusted HR: 0.90 [0.81-1.00] in the overall population and 0.78 [0.64-0.96] in those diagnosed with incident cancer). CONCLUSION: Individuals on long-term exposure to hydroxychloroquine/chloroquine are not at lower risk of cancer. However, hydroxychloroquine/chloroquine may lower the risk of metastatic cancer and death. |
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| ジャーナル名 | Clinical epidemiology |
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| Pubmed追加日 | 2017/11/16 |
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| 投稿者 | Fardet, L; Nazareth, I; Petersen, I |
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| 組織名 | Department of Primary Care and Population Health, University College London, UK.;Department of Dermatology, Henri Mondor Hospital AP-HP, Creteil, France.;Equipe d'Accueil 7379 EpiDermE, Universite Paris Est Creteil, Creteil, France. |
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| Pubmed リンク | https://www.ncbi.nlm.nih.gov/pubmed/29138600/ |
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