Off-label use of anticancer drugs in eastern Switzerland: a population-based prospective cohort study

Purpose Prevalence data on the off-label use (OLU) of anticancer drugs are limited despite OLU being controversial for medical, pharmaco-economic, and ethical reasons. We therefore quantified and characterized the OLU of anticancer drugs and compared OLU based on the national drug label with interna...

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Veröffentlicht in:European journal of clinical pharmacology 2014-06, Vol.70 (6), p.719-725
Hauptverfasser: Joerger, M., Schaer-Thuer, C., Koeberle, D., Matter-Walstra, K., Gibbons-Marsico, J., Diem, S., Thuerlimann, B., Cerny, T.
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container_end_page 725
container_issue 6
container_start_page 719
container_title European journal of clinical pharmacology
container_volume 70
creator Joerger, M.
Schaer-Thuer, C.
Koeberle, D.
Matter-Walstra, K.
Gibbons-Marsico, J.
Diem, S.
Thuerlimann, B.
Cerny, T.
description Purpose Prevalence data on the off-label use (OLU) of anticancer drugs are limited despite OLU being controversial for medical, pharmaco-economic, and ethical reasons. We therefore quantified and characterized the OLU of anticancer drugs and compared OLU based on the national drug label with international treatment recommendations. Methods We prospectively collected data on patients receiving systemic anticancer therapy between October and December 2012 at hospitals affiliated with the Eastern Switzerland Oncology Network. Individual data on patient characteristics, tumor disease, and systemic treatment were collected, and each individual treatment was compared with the national drug label and international treatment guidelines. Results A total of 985 consecutive patients receiving 1,737 anticancer drug treatments were included in the study. Overall, 32.4 % of all patients received at least one off-label drug, corresponding to 27.2 % of all anticancer drugs administered. Major reasons for OLU were the lack of approval for the specific disease entity (15.7 %) and modified application of the anticancer drug (10 %). OLU that was unsupported by the current European Society for Medical Oncology (ESMO) treatment recommendations was rare (6.6 %) but higher for bevacizumab (29.6 %) due to its use in treating advanced ovarian cancer beyond the second-line setting and advanced breast cancer beyond the first-line setting and for lenalidomide (22.6 %) due to its use in treating Non-Hodgkin lymphoma. Conclusions Based on data collected on our patient cohort, OLU of anticancer drugs in a European clinical setting applies to one-third of all cancer patients. ESMO-unsupported use of chemotherapies or molecularly-targeted drugs is rare, opposing concerns that the off-label use of newer anticancer drugs is a substantial clinical problem.
doi_str_mv 10.1007/s00228-014-1662-5
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We therefore quantified and characterized the OLU of anticancer drugs and compared OLU based on the national drug label with international treatment recommendations. Methods We prospectively collected data on patients receiving systemic anticancer therapy between October and December 2012 at hospitals affiliated with the Eastern Switzerland Oncology Network. Individual data on patient characteristics, tumor disease, and systemic treatment were collected, and each individual treatment was compared with the national drug label and international treatment guidelines. Results A total of 985 consecutive patients receiving 1,737 anticancer drug treatments were included in the study. Overall, 32.4 % of all patients received at least one off-label drug, corresponding to 27.2 % of all anticancer drugs administered. Major reasons for OLU were the lack of approval for the specific disease entity (15.7 %) and modified application of the anticancer drug (10 %). OLU that was unsupported by the current European Society for Medical Oncology (ESMO) treatment recommendations was rare (6.6 %) but higher for bevacizumab (29.6 %) due to its use in treating advanced ovarian cancer beyond the second-line setting and advanced breast cancer beyond the first-line setting and for lenalidomide (22.6 %) due to its use in treating Non-Hodgkin lymphoma. Conclusions Based on data collected on our patient cohort, OLU of anticancer drugs in a European clinical setting applies to one-third of all cancer patients. ESMO-unsupported use of chemotherapies or molecularly-targeted drugs is rare, opposing concerns that the off-label use of newer anticancer drugs is a substantial clinical problem.</description><identifier>ISSN: 0031-6970</identifier><identifier>EISSN: 1432-1041</identifier><identifier>DOI: 10.1007/s00228-014-1662-5</identifier><identifier>PMID: 24609468</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Antineoplastic Agents - administration &amp; dosage ; Antineoplastic Agents - supply &amp; distribution ; Antineoplastic Agents - therapeutic use ; Biological and medical sciences ; Biomedical and Life Sciences ; Biomedicine ; Cancer ; Cohort Studies ; Descriptive labeling ; Drug Utilization Review - statistics &amp; numerical data ; Female ; Health economics ; Humans ; Male ; Medical ethics ; Medical sciences ; Middle Aged ; Neoplasms - drug therapy ; Neoplasms - epidemiology ; Off-Label Use - economics ; Off-Label Use - statistics &amp; numerical data ; Pharmacoepidemiology and Prescription ; Pharmacology ; Pharmacology. 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We therefore quantified and characterized the OLU of anticancer drugs and compared OLU based on the national drug label with international treatment recommendations. Methods We prospectively collected data on patients receiving systemic anticancer therapy between October and December 2012 at hospitals affiliated with the Eastern Switzerland Oncology Network. Individual data on patient characteristics, tumor disease, and systemic treatment were collected, and each individual treatment was compared with the national drug label and international treatment guidelines. Results A total of 985 consecutive patients receiving 1,737 anticancer drug treatments were included in the study. Overall, 32.4 % of all patients received at least one off-label drug, corresponding to 27.2 % of all anticancer drugs administered. Major reasons for OLU were the lack of approval for the specific disease entity (15.7 %) and modified application of the anticancer drug (10 %). OLU that was unsupported by the current European Society for Medical Oncology (ESMO) treatment recommendations was rare (6.6 %) but higher for bevacizumab (29.6 %) due to its use in treating advanced ovarian cancer beyond the second-line setting and advanced breast cancer beyond the first-line setting and for lenalidomide (22.6 %) due to its use in treating Non-Hodgkin lymphoma. Conclusions Based on data collected on our patient cohort, OLU of anticancer drugs in a European clinical setting applies to one-third of all cancer patients. 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We therefore quantified and characterized the OLU of anticancer drugs and compared OLU based on the national drug label with international treatment recommendations. Methods We prospectively collected data on patients receiving systemic anticancer therapy between October and December 2012 at hospitals affiliated with the Eastern Switzerland Oncology Network. Individual data on patient characteristics, tumor disease, and systemic treatment were collected, and each individual treatment was compared with the national drug label and international treatment guidelines. Results A total of 985 consecutive patients receiving 1,737 anticancer drug treatments were included in the study. Overall, 32.4 % of all patients received at least one off-label drug, corresponding to 27.2 % of all anticancer drugs administered. Major reasons for OLU were the lack of approval for the specific disease entity (15.7 %) and modified application of the anticancer drug (10 %). OLU that was unsupported by the current European Society for Medical Oncology (ESMO) treatment recommendations was rare (6.6 %) but higher for bevacizumab (29.6 %) due to its use in treating advanced ovarian cancer beyond the second-line setting and advanced breast cancer beyond the first-line setting and for lenalidomide (22.6 %) due to its use in treating Non-Hodgkin lymphoma. Conclusions Based on data collected on our patient cohort, OLU of anticancer drugs in a European clinical setting applies to one-third of all cancer patients. ESMO-unsupported use of chemotherapies or molecularly-targeted drugs is rare, opposing concerns that the off-label use of newer anticancer drugs is a substantial clinical problem.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><pmid>24609468</pmid><doi>10.1007/s00228-014-1662-5</doi><tpages>7</tpages></addata></record>
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subjects Antineoplastic Agents - administration & dosage
Antineoplastic Agents - supply & distribution
Antineoplastic Agents - therapeutic use
Biological and medical sciences
Biomedical and Life Sciences
Biomedicine
Cancer
Cohort Studies
Descriptive labeling
Drug Utilization Review - statistics & numerical data
Female
Health economics
Humans
Male
Medical ethics
Medical sciences
Middle Aged
Neoplasms - drug therapy
Neoplasms - epidemiology
Off-Label Use - economics
Off-Label Use - statistics & numerical data
Pharmacoepidemiology and Prescription
Pharmacology
Pharmacology. Drug treatments
Pharmacology/Toxicology
Practice Guidelines as Topic
Prescription drugs
Prospective Studies
Switzerland
title Off-label use of anticancer drugs in eastern Switzerland: a population-based prospective cohort study
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