Impact of comorbidities on overall survival in patients with chronic myeloid leukemia: results of the randomized CML Study IV
Year: 2015
Type: article
Abstract: We studied the influence of comorbidities on remission rate and overall survival (OS) in patients with chronic myeloid leukemia (CML). Participants of the CML Study IV, a randomized 5-arm trial designed to optimize imatinib therapy, were analyzed for comorbidities at diagnosis using the Charlson Comorbidity Index (CCI); 511 indexed comorbidities were reported in 1519 CML patients. Age was an additional risk factor in 863 patients. Resulting CCI scores were as follows: CCI 2, n = 589; CCI 3 or 4, n = 599; CCI 5 or 6, n = 229; and CCI ≥ 7, n = 102. No differences in cumulative incidences of accelerated phase, blast crisis, or remission rates were observed between patients in the different CCI groups. Higher CCI was significantly associated with lower OS probabilities. The 8-year OS probabilities were 93.6%, 89.4%, 77.6%, and 46.4% for patients with CCI 2, 3 to 4, 5 to 6, and ≥7, respectively. In multivariate analysis, CCI was the most powerful predictor of OS, which was still valid after removal of its age-related components. Comorbidities have no impact on treatment success but do have a negative effect on OS, indicating that survival of patients with CML is determined more by comorbidities than by CML itself. OS may therefore be inappropriate as an outcome measure for specific CML treatments. The trial was registered at www.clinicaltrials.gov as #NCT00055874.
Source: Blood
Authors: Susanne Saußele, Marie-Paloma Krauß, Rüdiger Hehlmann, Michael Lauseker, Ulrike Proetel, Lida Kalmanti, Benjamin Hanfstein, Alice Fabarius, Doris Kraemer, Wolfgang E. Berdel, Martin Bentz, Peter Staib, Maike de Wit, Martin Wernli, Florian Zettl, Holger F. Hebart, Markus Hahn, Jochen Heymanns, Ingo Schmidt-Wolf, Norbert Schmitz, Michael J. Eckart, Winfried Gassmann, Andrea Bartholomäus, Antonio Pezzutto, Elisabeth Oppliger Leibundgut, Dominik Heim, Stefan W. Krause, Andreas Burchert, Wolf-Karsten Hofmann, Joerg Hasford, Andreas Hochhaus, Markus Pfirrmann, Martin C. Müller
Institutions: Heidelberg University, Medizinische Fakultät Mannheim, Institut für Medizinische Informationsverarbeitung, Biometrie und Epidemiologie, Ludwig-Maximilians-Universität München, Klinikum Oldenburg, University Hospital Münster, Städtisches Klinikum Karlsruhe, Sankt-Antonius-Hospital Eschweiler, Vivantes Klinikum, Kantonsspital Aarau, Universitätsmedizin Göttingen, University Hospital Bonn, Asklepios Klinik St. Georg, Asklepios, Asklepios Kliniken Hamburg, St. Bernward Krankenhaus, Charité – Universitätsmedizin Berlin, University Hospital of Bern, University Hospital of Basel, Universitätsklinikum Erlangen, Universitätsklinikum Gießen und Marburg, Jena University Hospital
Language: English
Subfield: Hematology
Field: Medicine
Domain: Health Sciences
Open Access status: green
OpenAlex ID: W2010678043