Volume 187, Issue 3 pp. 364-371
Research Paper

Risk of secondary haematological malignancies in patients with follicular lymphoma: an analysis of 1028 patients treated in the rituximab era

Roosa E. I. Prusila

Corresponding Author

Roosa E. I. Prusila

Medical Research Centre and Cancer and Translational Research Unit, University of Oulu and Oulu University Hospital, Oulu, Finland

Correspondence: Roosa E. I. Prusila, Oulu University Hospital, Syöpätautien tutkimuslaboratorio, Kajaanintie 50, 90220 Oulu, Finland.

E-mail: [email protected]

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Marc Sorigue

Marc Sorigue

Department of Haematology, ICO-Hospital Germans Trias i Pujol, Institut de Recerca Josep Carreras, Badalona, Spain

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Jyrki Jauhiainen

Jyrki Jauhiainen

Department of Applied Physics, University of Eastern Finland, Kuopio, Finland

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Santiago Mercadal

Santiago Mercadal

Department of Haematology, ICO-Hospital Duran i Reynals, Hospitalet de Llobregat, Barcelona, Spain

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Aleksi Postila

Aleksi Postila

Medical Research Centre and Cancer and Translational Research Unit, University of Oulu and Oulu University Hospital, Oulu, Finland

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Petteri Salmi

Petteri Salmi

Medical Research Centre and Cancer and Translational Research Unit, University of Oulu and Oulu University Hospital, Oulu, Finland

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Taru Tanhua

Taru Tanhua

Medical Research Centre and Cancer and Translational Research Unit, University of Oulu and Oulu University Hospital, Oulu, Finland

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Susanna Tikkanen

Susanna Tikkanen

Medical Research Centre and Cancer and Translational Research Unit, University of Oulu and Oulu University Hospital, Oulu, Finland

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Sakari Kakko

Sakari Kakko

Department of Haematology, Oulu University Hospital, Oulu, Finland

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Hanne Kuitunen

Hanne Kuitunen

Medical Research Centre and Cancer and Translational Research Unit, University of Oulu and Oulu University Hospital, Oulu, Finland

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Marjukka Pollari

Marjukka Pollari

Department of Oncology, Tampere University Hospital, Tampere, Finland

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Ilja Nystrand

Ilja Nystrand

Department of Oncology, Turku University Hospital, Turku, Finland

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Milla E. L. Kuusisto

Milla E. L. Kuusisto

Medical Research Centre and Cancer and Translational Research Unit, University of Oulu and Oulu University Hospital, Oulu, Finland

Siunsote – Hospital District of North Carelia, Joensuu, Finland

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Kaija Vasala

Kaija Vasala

Department of Oncology and Radiotherapy, Central Finland Central Hospital, Jyväskylä, Finland

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Esa Jantunen

Esa Jantunen

Siunsote – Hospital District of North Carelia, Joensuu, Finland

Department of Medicine, Kuopio University Hospital, Kuopio, Finland

Institute of Clinical Medicine, Faculty of Health Medicine, University of Eastern Finland, Kuopio, Finland

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Eija Korkeila

Eija Korkeila

Department of Oncology, Turku University Hospital, Turku, Finland

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Peeter Karihtala

Peeter Karihtala

Medical Research Centre and Cancer and Translational Research Unit, University of Oulu and Oulu University Hospital, Oulu, Finland

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Juan-Manuel Sancho

Juan-Manuel Sancho

Department of Haematology, ICO-Hospital Germans Trias i Pujol, Institut de Recerca Josep Carreras, Badalona, Spain

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Taina Turpeenniemi-Hujanen

Taina Turpeenniemi-Hujanen

Medical Research Centre and Cancer and Translational Research Unit, University of Oulu and Oulu University Hospital, Oulu, Finland

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Outi Kuittinen

Outi Kuittinen

Medical Research Centre and Cancer and Translational Research Unit, University of Oulu and Oulu University Hospital, Oulu, Finland

Institute of Clinical Medicine, Faculty of Health Medicine, University of Eastern Finland, Kuopio, Finland

Department of Oncology, Kuopio University Hospital, Kuopio, Finland

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First published: 03 July 2019
Citations: 15

Summary

Follicular lymphoma (FL) is the most common indolent lymphoma. Currently there are many comparable treatment options available for FL. When selecting the most optimal therapy it is important to consider possible late effects of the treatment as well as survival. Secondary haematological malignancy (SHM) is a severe late effect of treatments, but the incidence of SHMs is still largely unknown. The goal of the present study was to determine the incidence of SHMs and how therapeutic decisions interfere with this risk. The study included 1028 FL patients with a median follow-up time of 5·6 years. The 5-year risk of SHM was 1·1% and the risk was associated with multiple lines of treatment (P = 0·016). The 5-year risk of SHM was 0·5% after the first-line treatment and 1·6% after the second-line. The standardized incidence ratio (SIR) was 6·2 (95% confidence interval 3·4–10·5) for SHM overall. This retrospective study found that the risk of SHM was low after first-line treatment in FL patients from the rituximab era. However, the risk of SHM increases with multiple lines of treatment. Therapeutic approaches should aim to achieve as long a remission as possible with first-line treatment, thereby postponing the added risk of SHM.

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