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Published on: June 14, 2018
Fingolimod versus interferon beta 1-a: Benefit-harm assessment approach based on TRANSFORMS individual patient data
Alessandra Spanu1, Hélène E Aschmann1,2, Jürg Kesselring3
1Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland.
Background:
Fingolimod is a disease-modifying drug approved for multiple sclerosis but its benefit-harm balance has never been assessed compared to other active treatments.
Objectives:
Our aim was to compare the benefits and harms of fingolimod with interferon beta-1a using individual patient data from TRial Assessing injectable interferon versus FTY720 Oral in RRMS trial.
Methods:
We modelled the health status of patients over time including Expanded Disability Status Scale measurements, relapses and any adverse events. We assessed the mean health status between arms and the proportion of patients whose health deteriorated or improved relatively to baseline, using a prespecified minimal important difference of 4.6. We performed sensitivity analyses to test our assumptions.
Results:
Main and sensitivity analyses favoured fingolimod 0.5 mg over interferon beta-1a. The average health status difference was 1.01 (95% CI 0.93-1.08). Patients on fingolimod 0.5 mg were 0.47 (95% CI: 0.35-0.63, p < 0.001) times less likely to experience a relevant decline in health status compared to interferon beta-1a patients, with a number needed to treat of 7.10 [5.18, 11.23].
Conclusions:
Fingolimod's net benefit over interferon beta-1a did not reach the clinical relevance over 1 year, but the decreased risk for health status deterioration may be more pronounced more long term and patients may prefer less treatment burden associated with fingolimod.
